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D-Link (DES-3550) (DHDES3550)

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1. 139 ROGOLVEdU RA sit heads dida di nOs 139 UMB stt Rae asc ert ues ero ctun a ats A AAA AA A lass alee Reeds d E EI ME E EE 141 TRANSICION ii 143 ERRORS EE 145 RECO IR E hier scent IE E AE AT OOA AN AOE EE AEE A A A EAO EA 145 TFONS PUC ADS A its 147 gt YA AA ROS 149 NIAC ADDRESS e de del rene 150 GNP SNOOPING GROUP Voces 152 GNP SNOOPING FORWARDING ui diia 153 VEAN STATUS q A EE 153 BROWSE ROUTER PORTS add aa 154 POR PAC CESS CONTROL Ai 155 Utt henticOloT SIQIO A adios 155 MAINTENANCE isitoe aiaa 156 AUER SER VICE S ouen E N N 156 Downloda Firmware ELOTE DES CV E A AA a EE ae 156 Download Settues JTOI LE LP Devesa 157 UPIOGAS SIO VETS CIV EP etin roD OR MU tud E E NS TO 157 DIOGO EOD TO NS A O maU uu UN C M EL Mei RUE 158 SICA iio 158 A O dorus 159 SAVING C HANGE uraa iio ecidas 160 O OS 161 PROD OOD IN CES Na 161 JEA E EA EEE E ETS E r T donen tua tnit 161 LOGOD Poesen E N 162 SINGLE IP MANAGEMENT uta sean Ce eaa Foto ices aa eaaa aaraa aa eS actu deest ded desde sede oa iaeia 163 SINGLE IP MANAGEMENT SIND OVERVIEW SS ee a dev ad a 163 SIN USING THE WEB INTERFACE ds A dunt E el een o se ETNA 164 TOPO OOV a AAA A 166 ETA RE TR RC ne ees 168 PRU CIE A A accused yada 170 Menu BAOT EN RARE RI ERA ST eT TR AA AAA AAA CR TRY eI PT TY rere RUND 17
2. Figure 6 48 Access Rule Configuration window Ethernet To set the Access Rule for Ethernet adjust the following parameters and click Apply Parameters Description Profile ID This is the identifier number for this profile set Select Permit to specify that the packets that match the access profile are forwarded by the Switch according to any additional rule added see below Select Deny to specify that packets that do not match the access profile are not forwarded by the Switch and will be filtered Type in a unique identifier number for this access This value can be set from 1 50 Selected profile based on Ethernet MAC Address IP address or Packet Content Mask Ethernet instructs the Switch to examine the layer 2 part of each packet header IP instructs the Switch to examine the IP address in each frame s header Packet Content Mask instructs the Switch to examine the packet header Priority 0 7 Select this option to instruct the Switch to use the 802 1p priority value entered in the adjacent field for packets that meet the criteria A number between 0 the lowest priority and 7 the highest priority can be entered Allows the entry of a name for a previously configured VLAN Source MAC Address Enter a MAC Address for the source MAC address Destination Mac Destination MAC Address Enter a MAC Address mask for the destination MAC address 99 DES 3550 Layer 2 Fast Ethernet Switch User
3. Bridge Priority 0 61440 lt 32768 gt STP Version lt ARSTP gt Tx Hold Count lt 3 gt Forwarding BPDU lt Enabled gt The Forward Delay can be from 4 to 30 seconds This is the time any port on the Switch spends in the listening state while moving from the blocking state to the forwarding state A Priority for the Switch can be set from 0 to 61440 This number is used in the voting process between switches on the network to determine which switch will be the root switch A low number indicates a high priority and a high probability that this switch will be elected as the root switch Choose RSTP default or STP Compatibility Both versions use STP parameters in the same way RSTP is fully compatible with IEEE 802 1d STP and will function with legacy equipment This is the maximum number of Hello packets transmitted per interval The count can be specified from 1 to 10 Default value 3 This field can be enabled or disabled When it is enabled it allows the forwarding of STP BPDU packets from other network devices when STP is disabled on the Switch The default is enabled Click Apply to implement the changes made a m Note The Hello Time cannot be longer than the Max Age Otherwise a configuration error will occur Observe the following formulas when setting the above parameters Max Age lt 2 x Forward Delay 1 second Max Age 2 2 x Hello Time 1 second STP Port Settings
4. To specify that the SNMP version 3 will be used with an Auth NoPriv security level V3 Auth Priv To specify that the SNMP version 3 will be used with an Auth Priv security level Community String or Type in the community string or SNMP V3 user name as appropriate SNMP V3 User Name To implement your new settings click Apply To return to the SNMP Host Table click the Show All SNMP Host Table Entries link SNMP Engine ID The Engine ID 1s a unique identifier used for SNMP V3 implementations This is an alphanumeric string used to identify the SNMP engine on the Switch To display the Switch s SNMP Engine ID open the SNMP V3 folder and click on the SNMP Engine ID link This will open the SNMP Engine ID Configuration window as shown below EIA ale lar IO a Ss a SNMI LP LE e Config aci n 800000ab03000000523383 Apply Figure 7 30 SNMP Engine ID Configuration To change the Engine ID type the new Engine ID in the space provided and click the Apply button 136 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Monitoring Port Utilization CPU Utilization Packets Errors Size MAC Address IGMP Snooping Group IGMP Snooping Forwarding VLAN Status Router Port Port Access Control Port Utilization The Port Utilization page displays the percentage of the total available bandwidth being used on the port Port utilization statistics may be viewed using a line graph or table format
5. NoAuthNoPriv Specifies that there will be no authorization and no encryption of packets sent between the Switch and a remote SNMP manager AuthNoPriv Specifies that authorization will be required but there will be no encryption of packets sent between the Switch and a remote SNMP manager AuthPriv Specifies that authorization will be required and that packets sent between the Switch and a remote SNMP manger will be encrypted To implement your new settings click Apply To return to the SNMP Group Table click the Show All SNMP Group Table Entries link SNMP Community Table Configuration Use this table to create an SNMP community string to define the relationship between the SNMP manager and an agent The community string acts like a password to permit access to the agent on the Switch One or more of the following characteristics can be associated with the community string An Access List of IP addresses of SNMP managers that are permitted to use the community string to gain access to the Switch s SNMP agent Any MIB view that defines the subset of all MIB objects will be accessible to the SNMP community Read write or read only level permission for the MIB objects accessible to the SNMP community To configure SNMP Community entries open the SNMP V3 folder and click the SNMP Community Table link which will Suus the following screen SNMP Community Table Configuration o Read Only y Apply Total Entries 2
6. Security IP User Accounts Access Authentication Control TACACS SNMP V3 The following section will aid the user in configuring security functions for the Switch The Switch includes various functions for security including TACACS Security IPs and SNMP all discussed in detail in the following section Security IP Go to the Management folder and click on the Security IP link the following screen will appear IP Access to Switch IP2 Access to Switch IP3 Access to Switch Apply Iote Create a list of IP addresses that can access the switch Your local host IP address must he one of the IP addresses to avoid disconnection Figure 7 1 Security IP Management Setup Use the Security IP Management to permit remote stations to manage the Switch If you choose to define one or more designated management stations only the chosen stations as defined by IP address will be allowed management privilege through the Web manager or Telnet session To define a management station IP setting type in the IP address and click on the Apply button User Accounts Use the User Accounts Management window to control user privileges To view existing User Accounts open the Security Management folder and click on the User Accounts link This will open the User Account Management page as shown below Account Management User Name Access Right ACC Trinity Admin Figure 7 2 User Accounts Management
7. The RADIUS feature of the Switch allows you to facilitate centralized user administration as well as providing protection against a sniffing active hacker The Web Manager offers three windows Click the Radius Server folder on the Configuration menu and then click the Authentic Radius Server link to open the Authentic Radius Server Setting window Hadius Server Authentication Setting Succession Radius Server Authentic Port Accounting Method Add Modity Current Radius Server Settings Auth Port Number Acct Port Number First 0 0 0 0 Second 0000 Third 0 0 0 0 Figure 6 63 Authentic Radius Server Setting and Current Radius Server s Settings Table window This window displays the following information Parameter Description 113 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Choose the desired RADIUS server to configure First Second or Third Radius Server Set the RADIUS server IP lt 10 53 13 94 gt Authentic Port Set the RADIUS authentic server s UDP port The default is 1812 lt 1812 gt Accounting Port Set the RADIUS account server s UDP port The default is 1813 lt 1813 gt Set the key the same as that of the RADIUS server Confirm Key Confirm the shared key is the same as that of the RADIUS server Accounting Method This allows you to Add Modify or Delete the RADIUS Server 114 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Management
8. All DES 3550 switches are set as Candidate CaS switches as their factory default configuration and the Single IP Management feature will be disabled To enable SIM for the Switch using the Web interface go to the Single IP Management folder and click the SIM Settings link revealing the following window 164 DES 3550 Layer 2 Fast Ethernet Switch User s Guide 31M Settings SIM State Disabled y Figure 10 1 SIM Settings window disabled Change the SIM State to Enabled using the pull down menu and click Apply The screen will then refresh and the SIM Settings window will look like this SIM Settings E SIM State Discovery interval EGE CLE NE Figure 10 2 SIM Settings window enabled The following parameters can be set Parameters Description Use the pull down menu to either enable or disable the SIM state on the Switch Disabled will render all SIM functions on the Switch inoperable Role State Use the pull down menu to change the SIM role of the Switch The two choices are Candidate A Candidate Switch CaS is not the member of a SIM group but is connected to a Commander Switch This is the default setting for the SIM role of the DES 3550 Commander Choosing this parameter will make the Switch a Commander Switch CS The user may join other switches to this Switch over Ethernet to be part of its SIM group Choosing this option will also enabl
9. DES 3550 s ay Tr 4 a Es E l m a a a EI d p La Pid i d e F r a L Li E pe LI WWW ww www AAA ot Th AAA OIE EELE D Link e Figure 1 1 Front Panel View of the DES 3550 as shipped Comprehensive LED indicators display the status of the Swtch and the network LED Indicators The LED indicators of the Switch include Power Console Link Act Speed and FDX This Switch also includes a LED Mode button which has the default setting set to Link Act The user may scroll through to show the LED status for Link Act Speed and FDX of each port The following shows the LED indicators for the Switch along with an explanation of each indicator litis E m E E E m RM E E E n E E sa Power B console B FPS H Figure 1 2 LED Indicators This LED will light green after the Switch is powered on to indicate the ready state of the device The indicator is dark when the Switch is powered off This LED should blink during the Power On Self Test POST When the POST is Console finished the LED goes dark This indicator is lit solid green when the Switch is being logged into via out of band local console management through the RS 232 console port in the back of the Switch using a straight through serial cable This LED will be lit when the redundant power supply is present and in use Otherwise it will remain dark This LED will blink when there is activity on the port EREN The Switch s two Mini GBIC port
10. MAC Address Model Name and Version To specify a certain Switch for upgrading configuration files click its corresponding radio button under the Port heading To update the configuration file enter the Server IP Address where the firmware resides and enter the Path Filename of the firmware Click Download to initiate the file transfer Port Wlac Address Model Name C 25 a0 35 26 33 00 09 DES 3550 Le Switch 1 00 BOs C 9 a0 355 26 44 00 10 DES 3550 Le Switch 1 00 BOs server IP Address I I i Path Filename Upload Download Figure 10 21 Configuration File Backup Restore window 176 Appendix A Standards IEEE 802 3u 100BASE TX Fast Ethernet IEEE 802 3ab 1000BASE T Gigabit Ethernet IEEE 802 1D Spanning Tree IEEE 802 1W Rapid Spanning Tree IEEE 802 1 P Q VLAN IEEE 802 1p Priority Queues IEEE 802 3ad Link Aggregation Control IEEE 802 3x Full duplex Flow Control IEEE 802 3 Nway auto negotiation Since Data Transfer Rates Half duplex Full duplex Ethernet Fast Ethernet Gigabit Ethernet 10 Mbps 20 Mbps 100 Mbps 200 Mbps 2000 Mbps Full duplex only Topology Network Cables 10BASE T UTP Category 3 4 5 100 meters max EIA TIA 568 150 ohm STP 100 meters max 100BASE TX UTP Cat 5 100 meters max EIA TIA 568 150 ohm STP 100 meters max 1000BASE T UTP Cat 5e 100 meters max UTP Cat 5 100 meters max EIA TIA 568B 150 ohm STP 100 meters max
11. The increased speed and extra bandwidth offered by Gigabit Ethernet are essential to coping with the network bottlenecks that frequently develop as computers and their busses get faster and more users use applications that generate more traffic Upgrading key components such as your backbone and servers to Gigabit Ethernet can greatly improve network response times as well as significantly speed up the traffic between your subnetworks Gigabit Ethernet enables fast optical fiber connections to support video conferencing complex imaging and similar data intensive applications Likewise since data transfers occur 10 times faster than Fast Ethernet servers outfitted with Gigabit Ethernet NIC s are able to perform 10 times the number of operations in the same amount of time 13 DES 3550 Layer 2 Fast Ethernet Switch User s Guide In addition the phenomenal bandwidth delivered by Gigabit Ethernet is the most cost effective method to take advantage of today and tomorrow s rapidly improving switching and routing internetworking technologies Switching Technology Another key development pushing the limits of Ethernet technology is in the field of switching technology A switch bridges Ethernet packets at the MAC address level of the Ethernet protocol transmitting among connected Ethernet or Fast Ethernet LAN segments Switching is a cost effective way of increasing the total network capacity available to users on a local area network A swit
12. To view the port utilization click on the Monitoring folder and then the Port Utilization link Utilization Unit So Time Interval Record Number Showr Hide W Utilization Figure 8 1 Port Utilization window The following field can be set 137 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Parameter Description Select the desired setting between 1s and 60s where s stands for seconds The default value is one second Select number of times the Switch will be polled between 20 and 200 The default value is 200 Click Clear to refresh the graph Click Apply to set changes implemented CPU Utilization The CPU Utilization displays the percentage of the CPU being used expressed as an integer percentage and calculated as a simple average by time interval To view the CPU Utilization window open the Monitoring folder and click the CPU Utilization link Utilization Unit Unit Time Interval Record Number Show Hide M Utilization Figure 8 2 CPU Utilization graph Click Apply to implement the configured settings The window will automatically refresh with new updated statistics The information is described as follows Parameter Description Time Interval 7s Select the desired setting between 7s and 60s where s stands for seconds The default value is one second Record Number 200 Select number of times the Switch will be polled between 20 and 200 The default value is 20 Uti
13. 1000BASE LX 177 1000BASE SX Single mode fiber module 10km 1000BASE LHX 1000BASE ZX Multi mode fiber module 550m Mini GBIC Single mode fiber module 40km Single mode fiber module 80km SFP Transceiver for 1000BASE LX Single mode fiber module 10km Number of Ports 48 10 100 1000 Mbps ports 2 1000BASE T Mini GBIC Combo Ports Performance emission Store and forward Method Packet Buffer 64 MB per device Packet Filtering Full wire speed for all connections 1 488 095 pps per port for Forwarding 1000Mbps Rate Learning Queues Forwarding Max age 10 1000000 seconds Table Age Default 300 Time 178 Appendix B Cables and Connectors When connecting the Switch to another switch a bridge or hub a normal cable is necessary Please review these products for matching cable pin assignment The following diagrams and tables show the standard RJ 43 receptacle connector and their pin assignments 87654321 Contact MD XPot MDHIPot 6 TD ranmt RD receive 8 Notused PNotused The standard RJ 45 pin assignments 179 Appendix C Cable Lengths Use the following table to as a guide for the maximum cable lengths Standard Media Type Distance 1000BASE LX Single mode 10km 32 808ft Mini GBIC fiber module 1000BASE SX Multi mode 550m 1805ft fiber module mode fiber module 1000BASE ZX Singl
14. 11 Enabled Auta Link Down Disabled Enabled 12 Enabled Auta Link Down Disabled Enabled 13 Enabled Auto Link Down Disabled Enabled 14 Enabled Auta Link Down Disabled Enabled 15 Enabled Auta Link Down Disabled Enabled 16 Enabled Auto Link Down Disabled Enabled 17 Enabled Auto Link Down Disabled Enabled ls Enabled Auta Link Down Disabled Enabled 19 Enabled Auta Link Down Disabled Enabled ll Enabled Auta Link Down Disabled Enabled 4l Enabled Auta Link Down Disabled Enabled 2a Enabled Auta Link Down Disabled Enabled 23 Enabled Auta Link Down Disabled Enabled 24 Enabled uto Link Down Disabled Enabled 253 Enabled uto Link Down Disabled Enabled 26 Enabled Auto Link Down Disabled Enabled n Enabled Auto Link Down Disabled Enabled ZE Enabled uto Link Down Disabled Enabled 29 Enabled Auto Link Down Disabled Enabled 30 Enabled Auto Link Down Disabled Enabled 3l Enabled uto Link Down Disabled Enabled 32 Enabled Auto Link Down Disabled Enabled 33 Enabled Auto Link Down Disabled Enabled 34 Enabled Auto Link Down Disabled Enabled 95 Enabled uto Link Down Disabled Enabled 36 Enabled Auto Link Down Disabled Enabled 37 Enabled Auto Link Down Disabled Enabled 38 Enabled uto Link Down Disabled Enabled En Enabled Auto Link Down Disabled Enabled a Enabled Auto Link Down Disabled Enabled al Enabled uto Link Down Disabled Enabled dz Enabled Auto Link Down Disabled Enabled q Enabled Auto Link Down Disabled Enabled 44 Enabled Auto Link Down Disabled Enabled
15. 25 HA Yes 200000 128 Ho Yes Disabled Disabled 26 HA Yes 00000 128 Ho Yes Disabled Disabled Zt MA Yes 200000 128 Ho Yes Disabled Disabled 28 NA Yes 200000 128 Ho Yes Disabled Disabled 29 HA Yes 200000 128 Ho Yes Disabled Disabled 30 NA Yes 00000 128 Ho Yes Disabled Disabled 31 N A Yes 200000 123 Ho Yes Disabled Disabled 32 NA Yes 200000 128 Ho Yes Disabled Disabled 33 NA Yes 200000 128 Ho Yes Disabled Disabled ad NA Yes 00000 128 Ho Yes Disabled Disabled 35 NA Yes 200000 128 Ho Yes Disabled Disabled 36 HA Yes 200000 128 Ho Yes Disabled Disabled 37 NA Yes 00000 128 Ho Yes Disabled Disabled 38 NA Yes 200000 12 Ho Yes Disabled Disabled 39 HA Yes 200000 LS Ho Yes Disabled Disabled a HA Yes 200000 128 Ho Yes Disabled Disabled 41 NA Yes 00000 128 Ho Yes Disabled Disabled da NA Yes 00000 128 Ho Yes Disabled Disabled da NA Yes 200000 128 Ho Yes Disabled Disabled 44 HA Yes 00000 128 Ho Yes Disabled Disabled 45 HA Yes 00000 128 Ho Yes Disabled Disabled d NA Yes 200000 123 Ho Yes Disabled Disabled d NA Yes 200000 128 Ho Yes Disabled Disabled de N A Yes 200000 128 Ho Yes Disabled Disabled 49 HA Yes 00000 128 Ho Yes Disabled Disabled 30 NA Yes 200000 128 Ho Yes Disabled Disabled Figure 6 12 STP Port Settings and The STP Port Information window 55 DES 3550 Layer 2 Fast Ethernet Switch User s Guide In addition to setting Spanning Tree parameters for use on the switch level the Switch allows for the configurat
16. A router port has the following behavior 49 DES 3550 Layer 2 Fast Ethernet Switch User s Guide e All IGMP Report packets will be forwarded to the router port e IGMP queries from the router port will be flooded to all ports e All UDP multicast packets will be forwarded to the router port Because routers do not send IGMP reports or implement IGMP snooping a multicast router connected to the router port of the Layer 3 switch would not be able to receive UDP data streams unless the UDP multicast packets were all forwarded to the router port A router port will be dynamically configured when IGMP query packets RIPv2 multicast DVMRP multicast or PIM DM multicast packets are detected flowing into a port Open the IGMP folder and the click on the Static Router Ports Entry link to open the Current Static Router Ports Entries page as shown below Current Static Router Ports Entries Via Nan CET default Figure 6 9 Current Static Router Ports Entries window The Current Static Router Ports Entries page shown above displays all of the current entries to the Switch s static router port table To add or modify an entry click the Modify button This will open the Static Router Ports Settings page as shown below Static Router Ports Settings YID 1 YLAN Name default Member Ports UB Bs 6 fe fio fa faz ha fis fs fie 7 je fiv ao fat 2 s fae fas I gU EB NE NE NB NE NE NEN AN EU NE NN IH IU IM IM IE IH IB IM IM IN IN IM
17. Figure 10 19 About window Java Applet Window NOTE Upon this firmware release some functions of the SIM can only be configured through the Command Line Interface See the DES 3550 Command Line Interface Reference Manual for more information on SIM and its configurations Firmware Upgrade This screen is used to upgrade firmware from the Commander Switch to the Member Switch Member switches will be listed in the table and will be specified by Port port on the CS where the MS resides MAC Address Model Name and Version To specify a certain Switch for firmware download click its corresponding check box under the Port heading To update the firmware enter the Server IP Address where the firmware resides and enter the Path Filename of the firmware Click Download to initiate the file transfer 175 Lact Ly harna F fan T Fr Hh lc rc 211 re a FACT F IOrrnrneoj SI ITRN I IGOGF S 3l IInIo aye r Fast Elnernet owltcn User s aulae Port Wlac Address Model Name Version Mo 25 a0 35 26 33 00 05 DES 3550 Le Switch 1 00 BOs Po 9 a0 35 26 44 00 10 DIES 3550 Le Switch 1 00 BOs server P Address i i Path Filename Figure 10 20 Firmware Upgrade window Configuration File Backup Restore This screen is used to upgrade configuration files from the commander switch to the member switch Member switches will be listed in the table and will be specified by Port port on the CS where the MS resides
18. HR A PA RA PFP PFP PFP PFP FA PF PF PF PF PF qp PF PF Pa Pp Find Delete Find Delete Delete All Entry Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Dynamic Figure 8 14 MAC Address Table The following fields can be viewed or set Parameter Description VLAN ID Enter a VLAN ID for the forwarding table to be browsed by MAC Address Enter a MAC address for the forwarding table to be browsed by Allows the user to move to a sector of the database corresponding to a user defined port VLAN or MAC address The VLAN ID of the VLAN the port is a member of MAC Address The MAC address entered into the address table Pot 00 The port that the MAC address above corresponds to Learned How the switch discovered the MAC address The possible entries are Dynamic Self and Static Net Click this button to view the next page of the address table 151 DES 3550 Layer 2 Fast Ethernet Switch User s Guide IGMP Snooping Group IGMP Snooping allows the Switch to read the Multicast Group IP address and the corresponding MAC address from IGMP packets that pass through the Switch The number of IGMP reports that were snooped is displayed in the Reports field To view the IGMP Snooping table click IGMP Snooping Group on the Monitoring menu search IGMP S
19. L eleteOnEeset LieleteOnEeset LieleteOnEeset LieleteOnEeset LieleteOnEeset LieleteOnEeset DieletelInheset DieletelInheset DieletelInheset DieletelInheset Deletelnkeset Deletelnkeset Deletelnkeset Delete Inheset LieleteOnEeset DieletelInheset Deletelnkeset Deletelnkeset Deletelnkeset Deletelnkeset Deletelnkeset Deletelnkeset Deletelnkeset DeleteOnkeset DeleteOnkeset DeletelnFeset DeletelnFeset DeletelnFeset DeletelnReset LieleteOnEeset LieleteOnEeset LieleteOnEeset DieletelInheset DieletelInheset DieletelInheset DieletelInheset Figure 6 27 Port Security Settings window TI DES 3550 Layer 2 Fast Ethernet Switch User s Guide The following parameters can be set Parameter Description oo group of ports may be configured starting with the selected This pull down menu allows you to Enable or Disable Port Security locked Admin State MAC address table for the selected ports The number of MAC addresses that will be in the MAC address forwarding ena UG table for the selected switch and group of ports This pull down menu allows you to select how the MAC address table locking will be implemented on the Switch for the selected group of ports The options are DeleteOnReset DeleteOnTimeout and Permanent Click Apply to implement the changes on the Switch QoS Understanding QoS The DES 3550 supports 802 1p priority queuing The Switch has four priority queues These priority queues are labeled as
20. Ta E EType g Length EType Data ae N a SS NS ES Figure 6 19 Adding an IEEE 802 1Q Tag Priority Port VLAN ID Packets that are tagged are carrying the 802 1Q VID information can be transmitted from one 802 1Q compliant network device to another with the VLAN information intact This allows 802 1Q VLANSs to span network devices and indeed the entire network if all network devices are 802 1C compliant Unfortunately not all network devices are 802 1Q compliant These devices are referred to as tag unaware 802 10 devices are referred to as tag aware Prior to the adoption of 802 10 VLANSs port based and MAC based VLANs were in common use These VLANs relied upon a Port VLAN ID PVID to forward packets A packet received on a given port would be assigned that port s PVID and then be forwarded to the port that corresponded to the packet s destination address found in the Switch s 64 DES 3550 Layer 2 Fast Ethernet Switch User s Guide forwarding table If the PVID of the port that received the packet 1s different from the PVID of the port that 1s to transmit the packet the Switch will drop the packet Within the Switch different PVIDs mean different VLANs remember that two VLANs cannot communicate without an external router Therefore VLAN identification based upon the PVIDs cannot create VLANs that extend outside a given switch or switch stack Every physical port on a switch has a PVID 802
21. To view the STP Port Settings window click its link in the Configuration folder displaying the following screen 54 DES 3550 Layer 2 From To Site Cost Prioriy Migratontige PZP Apply Poti Poti Disabled fz00000 128 No No mo Apply State t FE TviEX Bese fest Prive EUN Desi l esignated Bridge HA 1 200000 128 ForrardingHonstp E NE vd 200000 128 Ne de Disabled Disabled 3 NA Yes 200000 128 Ho Yes Disabled Disabled 4 HA Yes 00000 128 Ho Yes Disabled Disabled 5 HA Yes 200000 128 Ho Yes Disabled Disabled N A Yes 200000 12 Ho Yes Disabled Disabled T NA Yes 00000 128 Ho Yes Disabled Disabled E NA Yes 00000 128 Ho Yes Disabled Disabled B NA Yes 200000 128 Ho Yes Disabled Disabled 10 NA Yes 200000 128 Ho Yes Disabled Disabled 11 NA Yes 00000 128 Ho Yes Disabled Disabled 12 NA Yes 00000 128 Ho Yes Disabled Disabled 13 NA Yes 200000 128 Ho Yes Disabled Disabled 14 NA Yes 00000 128 Ho Yes Disabled Disabled 15 NA Yes 00000 128 Ho Yes Disabled Disabled 16 NA Yes 200000 128 Ho Yes Disabled Disabled 17 NA Yes 200000 128 Ho Yes Disabled Disabled 18 NA Yes 200000 128 Ho Yes Disabled Disabled 19 HA Yes 00000 128 Ho Yes Disabled Disabled 20 NA Yes 200000 128 Ho Yes Disabled Disabled Zl HA Yes 200000 128 Ho Yes Disabled Disabled Ze HA Yes 00000 128 Ho Yes Disabled Disabled 23 NA Yes 200000 12 Ho Yes Disabled Disabled ze HA Yes 200000 128 Ho Yes Disabled Disabled
22. When a user attempts to access the Switch with Authentication Policy enabled the Switch will send authentication packets to a remote TACACS XTACACS TACACS server host on a remote host The TACACS XTACACS TACACS server host will then verify or deny the request and return the 120 DES 3550 Layer 2 Fast Ethernet Switch User s Guide appropriate message to the Switch More than one authentication protocol can be run on the same physical server host but remember that TACACS XTACACS TACACS are separate entities and are not compatible with each other The maximum supported number of server hosts is 16 To view the following window click Management gt Access Authentication Control gt Authentication Server Host 1 Server Host Settings TACAC at 49 Figure 7 9 Authentication Server Host Settings window To add an Authentication Server Host click the Add button revealing the following window Show All Authentication Server Host Entries Figure 7 10 Authentication Server Host Settings window Add A E the following parameters to add an Authentication Server Host Parameter Parameter Description IP Address The IP address of the remote server host the user wishes to add Protocol The protocol used by the server host The user may choose one of the following TACACS Enter this parameter if the server host utilizes the tacacs protocol XTACACS Enter this parameter if the server host utilizes the xtacacs p
23. heading which will display the following table to configure amp Authenticator Settings Server limeout MaxReq Re AuthPeriod Re Auth Show Authenticators Setting Figure 6 59 802 1X Authenticator Settings Modify This screen allows you to set the following features Parameter Description Configure Port from to Enter the port or ports to be set AdmCtrlDir lt both gt Sets the administrative controlled direction to either in or both If in is selected control is only exerted over incoming traffic through the port you selected in the first field If both is selected control is exerted over both incoming and outgoing traffic through the controlled port selected in the first field PortControl lt This allows you to control the port authorization state Select force Unauthorized gt forceAuthorized to disable 802 1X and cause the port to transition to the authorized state without any authentication exchange required This means the port transmits and receives normal traffic without 802 1X based authentication of the client f forceUnauthorized is selected the port will remain in the unauthorized state ignoring all attempts by the client to authenticate The Switch cannot provide authentication services to the client through the interface The third option is auto This enables 802 1X and causes the port to begin in the unauthorized state allow
24. path to the root bridge All bridges listen for BPDU packets However BPDU packets are sent more frequently with every Hello packet BPDU packets are sent even if a BPDU packet was not received Therefore each link between bridges is sensitive to the status of the link Ultimately this difference results in faster detection of failed links and thus faster topology adjustment A drawback of 802 1d is this absence of immediate feedback from adjacent bridges 802 1w 802 1d STP RSTP Forwarding Learning Disabled Discarding No No Blocking Discarding No No Listening Discarding No No Learning Learning No Yes Forwarding Forwarding Yes Yes Table 6 1 Comparing Port States 51 DES 3550 Layer 2 Fast Ethernet Switch User s Guide RSTP is capable of more rapid transition to a forwarding state it no longer relies on timer configurations RSTP compliant bridges are sensitive to feedback from other RSTP compliant bridge links Ports do not need to wait for the topology to stabilize before transitioning to a forwarding state In order to allow this rapid transition the protocol introduces two new variables the edge port and the point to point P2P port Edge Port The edge port is a configurable designation used for a port that 1s directly connected to a segment where a loop cannot be created An example would be a port connected directly to a single workstation Ports that are designated as edge ports transition to a forwarding state immediate
25. 0 0 O 0 0 0 O 0 O 0 O 0 O 0 O 0 O 0 O 0 O 0 O 0 O 0 O 0 O 0 O O 0 0 O 0 O 0 O O 0 0 Figure 6 29 802 1p Default Priority window This page allows you to assign a default 802 1p priority to any given port on the Switch The priority queues are numbered from 0 the lowest priority to 7 the highest priority Click Apply to implement your settings 80 DES 3550 Layer 2 Fast Ethernet Switch User s Guide 802 1p User Priority The DES 3550 allows the assignment of a user priority to each of the 802 1p priorities In the Configuration folder open the QoS folder and click 802 1p User Priority to view the screen shown below Figure 6 30 QoS Class of Traffic window Once you have assigned a priority to the port groups on the Switch you can then assign this Class to each of the 4 levels of 802 1p priorities Click Apply to set your changes Scheduling QoS can be customized by changing the output scheduling used for the hardware queues in the Switch As with any changes to QoS implementation careful consideration should be given to how network traffic in lower priority queues is affected Changes in scheduling may result in unacceptable levels of packet loss or significant transmission delay If you choose to customize this setting it is important to monitor network performance especially during peak demand as bottlenecks can quickly develop if the QoS settings are not suitable In the
26. 3 the high queue to 0 the lowest queue The eight priority tags specified in IEEE 802 1p are mapped to the Switch s priority tags as follows e Priority O is assigned to the Switch s Q1 queue e Priority 1 is assigned to the Switch s QO queue Priority 2 is assigned to the Switch s QO queue Priority 3 is assigned to the Switch s Q1 queue Priority 4 is assigned to the Switch s Q2 queue Priority 5 is assigned to the Switch s Q2 queue Priority 6 is assigned to the Switch s Q3 queue Priority 7 is assigned to the Switch s Q3 queue For strict priority based scheduling any packets residing in the higher priority queues are transmitted first Multiple strict priority queues empty based on their priority tags Only when these queues are empty are packets of lower priority transmitted For weighted round robin queuing the number of packets sent from each priority queue depends upon the assigned weight For a configuration of 8 CoS queues A H with their respective weight value 8 1 the packets are sent in the following sequence Al B1 Cl DI El Fl Gl H1 A2 B2 C2 D2 E2 F2 G2 A3 B3 C3 D3 E3 F3 A4 B4 C4 D4 EA A5 B5 C5 D5 A6 B6 C6 A7 B7 AS Al BI C1 DI El Fl Gl HI For weighted round robin queuing if each CoS queue has the same weight value then each CoS queue has an equal opportunity to send packets just like round robin queuing For weighted round robin queuing if the weight for a CoS is set
27. 30 30 2 3600 no 21 both both auto 30 60 30 30 2 3600 no 22 both both auto 30 60 30 30 2 3600 no 23 both both auto 30 60 30 30 2 3600 no 24 both both auto 30 60 30 30 2 3600 no 25 both both auto 30 60 30 30 2 3600 no 26 both both auto 30 60 30 30 2 3600 no 27 both both auto 30 60 30 30 2 3600 no 28 both both auto 30 60 30 30 2 3600 no 29 both both auto 30 60 30 30 2 3600 no 30 both both auto 30 60 30 30 2 3600 no 31 both both auto 30 60 30 30 2 3600 no 32 both both auto 30 60 30 30 2 3600 no 33 both both auto 30 60 30 30 2 3600 no 34 both both auto 30 60 30 30 2 3600 no 35 both both auto 30 60 30 30 2 3600 no 36 both both auto 30 60 30 30 2 3600 no 37 both both auto 30 60 30 30 2 3600 no 38 both both auto 30 60 30 30 2 3600 no 39 both both auto 30 60 30 30 2 3600 no 4 both both auto 30 60 30 30 2 3600 no 4 both both auto 30 60 30 30 2 3600 no 42 both both auto 30 60 30 30 2 3600 no 43 both both auto 30 60 30 30 2 3600 no 44 both both auto 30 60 30 30 2 3600 no 45 both both auto 30 60 30 30 2 3600 no 46 both both auto 30 60 30 30 2 3600 no 47 both both auto 30 60 30 30 2 3600 no 4 both both auto 30 60 30 30 2 3600 no 49 both both auto 30 60 30 30 2 3600 no 30 both both auto 30 60 30 30 2 3600 no Figure 6 58 802 1X Authenticator Settings window 107 i PQ nit Ah lle ria rel DES 3550 Layer 2 Fast Ethernet Switch User s Guide To configure the settings by port click on the hyperlinked port number under the Port
28. 45 Enabled uto Link Down Disabled Enabled a Enabled Auto Link Down Disabled Enabled 2 Enabled Auto Link Down Disabled Enabled dx Enabled Auto Link Down Disabled Enabled q Enabled Auto Link Down Disabled Enabled 30 Enabled Auto Link Down Disabled Enabled Figure 6 4 Port Configuration and The Port Information Table window 44 DES 3550 Layer 2 Fast Ethernet Switch User s Guide To configure switch ports 1 Choose the port or sequential range of ports using the From To port pull down menus 2 Use the remaining pull down menus to configure the parameters described below Parameter Description State lt Enablea gt Toggle the State Enabled field to either enable or disable a given port or group of ports Speed Duplex Toggle the Speed Duplex Auto field to either select the speed and Auto duplex half duplex state of the port Auto auto negotiation between 10 and 1000 Mbps devices full or half duplex The Auto setting allows the port to automatically determine the fastest settings the device the port is connected to can handle and then to use those settings The other options are Auto 10M Half 10M Full 100M Half and 100M Full There is no automatic adjustment of port settings with any option other than Auto Flow Control Displays the flow control scheme used for the various port configurations Ports configured for full duplex use 802 3x flow control half duplex ports use backpressure flow control and Auto
29. Address Settings window To manually assign the Switch s IP address subnet mask and default gateway address To the Select Manual from the Get IP From drop down menu Enter the appropriate IP address and subnet mask If you want to access the Switch from a different subnet from the one it is installed on enter the IP address of the gateway If you will manage the Switch from the subnet on which it 1s installed you can leave the default address 0 0 0 0 in this field If no VLANs have been previously configured on the Switch you can use the default VLAN Name default The default VLAN contains all of the switch ports as members If VLANs have been previously configured on the Switch you will need to enter the VLAN ID of the VLAN that contains the port connected to the management station that will access the Switch The Switch will allow management access from stations with the same VID listed here NOTE The Switch s factory default IP address is 10 90 90 90 with a subnet mask of 255 0 0 0 and a default gateway of 0 0 0 0 use 38 DES 3550 Layer 2 Fast Ethernet Switch User s Guide BOOTP or DHCP protocols to assign the Switch an IP address subnet mask and default gateway address Use the Get IP From Manual pull down menu to choose from BOOTP or DHCP This selects how the Switch will be assigned an IP address on the next reboot The IP Address Settings options are Parameter Description BOOTP DHCP Defaul
30. Configuration folder open the QoS folder and click QoS Output Scheduling to view the screen shown below Max Latency 0 255 Figure 6 31 QoS Output Scheduling Configuration window You may assign the following values to the QoS classes to set the scheduling Parameter Description Max Packets 0 255 Specifies the maximum number of packets the above specified hardware 81 DES 3550 Layer 2 Fast Ethernet Switch User s Guide priority queue will be allowed to transmit before allowing the next lowest priority queue to transmit its packets A value between 0 and 255 can be specified Max Latency 0 255 Specifies the maximum amount of time the above specified hardware priority queue will be allowed to transmit packets before allowing the next lowest hardware priority queue to begin transmitting its packets A value between 0 and 255 can be specified with this value multiplied by 16 ms to arrive at the total allowed time for the queue to transmit packets For example a value of 3 specifies 3 X 16 2 48 ms The queue will continue transmitting the last packet until it is finished when the max latency timer expires Note The settings you assign to the queues numbers 0 7 represent the IEEE 802 1p priority tag number Do not confuse these settings with port numbers Traffic Segmentation Traffic segmentation is used to limit traffic flow from a single por
31. Counts the total number of good packets that were received by a multicast address Broadcast Counts the total number of good packets that were received by a broadcast address Show Hide Check whether or not to display Multicast Broadcast and Unicast Packets Clicking this button clears all statistics counters on this window View Table Clicking this button instructs the Switch to display a table rather than a line graph View Line Chart Clicking this button instructs the Switch to display a line graph rather than a table 142 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Transmitted TX Click the Transmitted TX link in the Packets folder of the Monitoring menu to view the following graph of packets transmitted from the Switch View Tahle E TA Hrag E Bytes 5164 4590 Packets 4016 Time Interval Record Number Show Hide Iv Bytes IY Packets Figure 8 6 Tx Packets Analysis window line graph for Bytes and Packets To view the UMB_cast Table click the link View Table which will show the following table 143 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Packet Analysis of Port 1 Timelnterval ANA Bytes 241429 13 Unicast 4504 Multicast 16044 Ir 221 Bytes Figure 8 7 Tx Packets Analysis window table for Bytes and Packets The following fields may be set or viewed Parameter Description Time Interval 1s Select the desired setting between 1s and 60s wher
32. Delivery COD is allowed Products sent COD will either be rejected by D Link or become the property of D Link Products shall be fully insured by the customer and shipped to D Link Systems Inc 17595 Mt Herrmann Fountain Valley CA 92708 D Link will not be held responsible for any packages that are lost in transit to D Link The repaired or replaced packages will be shipped to the customer via UPS Ground or any common carrier selected by D Link with shipping charges prepaid Expedited shipping is available if shipping charges are prepaid by the customer and upon request D Link may reject or return any product that is not packaged and shipped in strict compliance with the foregoing requirements or for which an RMA number is not visible from the outside of the package The product owner agrees to pay D Link s reasonable handling and return shipping charges for any product that is not packaged and shipped in accordance with the foregoing requirements or that is determined by D Link not to be defective or non conforming What Is Not Covered This limited warranty provided by D Link does not cover Products if in D Link s judgment have been subjected to abuse accident alteration modification tampering negligence misuse faulty installation lack of reasonable care repair or service in any way that is not contemplated in the documentation for the product or if the model or serial number has been altered tampered with defaced or remove
33. Last Member Query Interval Host Timeout 16711450 Router Timeout 16711450 Leave Toner 0 16711450 Querier State State Disable d Show AL IGMP Group Entries Figure 6 8 IGMP Snooping Settings window The following parameters may be viewed or modified 48 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Parameter VLAN ID VLAN Name Query Interval Max Response Time Robustness Variable Last Member Query Interval Host Timeout Route Timeout Leave Timer Querier State Description This is the VLAN ID that along with the VLAN name identifies the VLAN that the user wishes to modify the IGMP Snooping Settings for This is the VLAN Name that along with the VLAN ID identifies the VLAN that the user wishes to modify the IGMP Snooping Settings for The Query Interval field is used to set the time in seconds between transmitting IGMP queries Entries between 1 and 65535 seconds are allowed Default 125 This determines the maximum amount of time in seconds allowed before sending an IGMP response report The Max Response Time field allows an entry between 1 and 25 seconds Default 10 Adjust this variable according to expected packet loss If packet loss on the VLAN is expected to be high the Robustness Variable should be increased to accommodate increased packet loss This entry field allows an entry of 1 to 255 Default 2 opecifies the maximum amount of time be
34. Mote Insert a maximum of 10 entries into the table SNMP Community Table Community View Read Write Community View Read Only Figure 7 27 Community Table Configuration and Table The following parameters can be set Parameter Description Community Name Type an alphanumeric string of up to 33 characters that is used to identify members of an SNMP community This string is used like a password to give 134 DES 3550 Layer 2 Fast Ethernet Switch User s Guide A remote SNMP managers access to MIB objects in the Switch s SNMP agent View Name Type an alphanumeric string of up to 32 characters that is used to identify the group of MIB objects that a remote SNMP manager is allowed to access on the Switch The view name must exist in the SNMP View Table Access Right read only Specifies that SNMP community members using the community string created with this command can only read the contents of the MIBs on the Switch read write Specifies that SNMP community members using the community string created with this command can read from and write to the contents of the MIBs on the Switch To implement the new settings click Apply To delete an entry from the SNMP Community Table click the amp under the Delete heading corresponding to the entry you wish to delete SNMP Host Table Use the SNMP Host Table to set up SNMP trap recipients Open the SNMP V3 folder and click on the SNMP Host Table link This will
35. PQ j sit nah J a Jn ria gt rel 5 DES 3550 Layer 2 Fast Ethernet Switch User s Guide IGMP Internet Group Management Protocol IGMP snooping allows the Switch to recognize IGMP queries and reports sent between network stations or devices and an IGMP host When enabled for IGMP snooping the Switch can open or close a port to a specific device based on IGMP messages passing through the Switch In order to use IGMP Snooping it must first be enabled for the entire Switch see Advanced Settings You may then fine tune the settings for each VLAN using the IGMP Snooping link in the Configuration folder When enabled for IGMP snooping the Switch can open or close a port to a specific Multicast group member based on IGMP messages sent from the device to the IGMP host or vice versa The Switch monitors IGMP messages and discontinues forwarding multicast packets when there are no longer hosts requesting that they continue IGMP Snooping Use the Current IGMP Snooping Group Entries window to view IGMP Snooping settings To modify the settings click the Modify button of the VLAN ID you want to change Current IGMP Snooping Group Entries NES Name Stare Juerler State detault Disabled Disabled Modify Figure 6 7 Current IGMP Snooping Group Entries Clicking the Modify button will bring up the IGMP Snooping Settings menu IGMP Snooping Settings YLAN ID YLAN Name Query Interval Max Response Time Robustness Value
36. UDP port number used for sending Syslog messages The default 6000 65535 is O Status Choose Enabled or Disabled to activate or deactivate To set the NE Log Server configuration click Apply To delete an entry from the System Log Server window click the corresponding amp under the Delete heading of the entry you wish to delete To return to the Current System Log Servers window click the Show All System Log Servers link PAE Access Entity 802 1X Understanding 802 1x Port based Network Access Control The Switch is an implementation of the server side of IEEE 802 1x Port Based Network Access Control Through this mechanism users have to be authorized before being able to access the network See the following figure 104 DES 3550 Layer 2 Fast Ethernet Switch User s Guide RADIUS Server D Link other brand Ether Switch on Windows 2000 Server nona ne uplink D Link Ether Switch WDC g Secure Client MDC s Secure Client DCs Secure Chent on Windows NT 2000 MDC s Secure Client on Windows NT 2000 on Windows NT 2000 on Windows NTM000 EH Controlled port poit blocked EH Uncontrolled port Figure 6 55 Typical 802 1x Configuration Prior to User Authentication Once the user is authenticated the Switch unblocks the port that is connected to the user as shown in the next figure Account Password D Link Other brand Ether Switch Jane janel23 Peasy 125 sosa aod Sam 456 Yumin
37. Unicast Forwarding Table as shown below Setup Static Unicast Forwardi SEE ee Add Madity Static Unicast Forwarding Table Figure 6 13 Setup Static Unicast Forwarding Table and Static Unicast Forwarding Table To add or edit an entry define the following parameters and then click Add Modify Parameter Description VLAN ID VID The VLAN ID number of the VLAN on which the above Unicast MAC address resides MAC Address The MAC address to which packets will be statically forwarded This must be a unicast MAC address Allowed to Go Port Allows the selection of the port number on which the MAC address entered above resides Click Apply to implement the changes made To delete an entry in the Static Unicast Forwarding Table click the corresponding under the Delete heading Static Multicast Forwarding The following figure and table describe how to set up Multicast forwarding on the Switch Open the Forwarding Filtering folder and click on the Multicast Forwarding link to see the entry screen below Static Multicast Forwarding Settings Add new Multicast Forwarding settings Current Multicast Forwarding Entries Figure 6 14 Static Multicast Forwarding Settings and Current Multicast Forwarding Entries The Static Multicast Forwarding Settings page displays all of the entries made into the Switch s static multicast forwarding table Click the Add button to open the Setup Static Multicast Forwarding Ta
38. User s Guide SECTION 2 Installation Package Contents Before You Connect to the Network Installing the Switch Without the Rack Rack Installation Power On Package Contents Open the shipping carton of the Switch and carefully unpack its contents The carton should contain the following items e One DES 3550 Stand alone Switch e One AC power cord e This Manual e Registration card e Mounting kit two brackets and screws e Four rubber feet with adhesive backing e RS 232 console cable If any item is found missing or damaged please contact your local D Link Reseller for replacement Before You Connect to the Network The site where you install the Switch may greatly affect 1ts performance Please follow these guidelines for setting up the Switch e Install the Switch on a sturdy level surface that can support at least 3 kg 6 6 Ib of weight Do not place heavy objects on the Switch e The power outlet should be within 1 82 meters 6 feet of the Switch e Visually inspect the power cord and see that it 1s fully secured to the AC power port e Make sure that there is proper heat dissipation from and adequate ventilation around the Switch Leave at least 15 cm 6 inches of space at the front and rear of the Switch for ventilation e Install the Switch in a fairly cool and dry place for the acceptable temperature and humidity operating ranges e Install the Switch in a site free from strong electromagnetic field gen
39. an existing SNMP User Table entry click the X below the Delete heading corresponding to the entry you wish to delete To display the detailed entry for a given user click on the hyperlinked User Name This will open the SNMP User Table Display page as shown below SNMP User Table Display User Name Group Name SNMP Version Auth Protocol Priv Protocol Show All SHME User Table Entries Figure 7 21 SNMP User Table Display The following parameters are displayed Parameter Description An alphanumeric string of up to 32 characters This is used to identify the SNMP users This name is used to specify the SNMP group created can request SNMP messages V1 Indicates that SNMP version 1 will be used SNMP Version V2 Indicates that SNMP version 2 will be used V3 Indicates that SNMP version 3 will be used 129 DES 3550 Layer 2 Fast Ethernet Switch User s Guide None Indicates that no authorization protocol is in use Auth Protocol MD5 Indicates that the HMAC MD5 96 authentication level will be used SHA Indicates that the HMAC SHA authentication protocol will be used None Indicates that no authorization protocol is in use Priv Protocol DES Indicates that DES 56 bit encryption is in use based on the CBC DES DES 56 standard To return to the SNMP User Table click the Show All SNMP User Table Entries link To add a new entry to the SNMP User Table Configuration click on the Add button on the SN
40. any of these methods will give the user an Admin privilege NOTE To set the Local Enable Password see the next section entitled Local Enable Password To view the following table click Management gt Access Authentication Control gt Enable Method Lists default local enable Figure 7 14 Enable Method List Settings window To delete an Enable Method List defined by the user click the aj under the Delete heading corresponding to the entry desired to be deleted To modify an Enable Method List click on its hyperlinked Enable Method List Name To configure a Method List click the Add button Both actions will result in the same screen to configure 124 DES 3550 Layer 2 Fast Ethernet Switch User s Guide llocal_enable Figure 7 16 Enable Method List Add window To define an Enable Login Method List set the following parameters and click Apply Parameter Description Method List Name Enter a method list name defined by the user of up to 15 characters Method 1 2 3 4 The user may add one or a combination of up to four 4 of the following authentication methods to this method list local enable Adding this parameter will require the user to be authenticated using the ocal enable password database on the Switch The ocal enable password must be set by the user in the next section entitled Local Enable Password none Adding this parameter will require no authentication to
41. be a non trunked port e Trunking Ports None Figure 6 5 Setup Port Mirroring window To configure a mirror port Select the Source Port from where you want to copy frames and the Target Port which receives the copies from the source port 2 Select the Source Direction Ingress Egress or Both and change the Status drop down menu to Enabled 3 Click Apply to make the changes take effect NOTE You cannot mirror a fast port onto a slower port For example if you try to mirror the traffic from a 100 Mbps port onto a 10 Mbps port this can cause throughput problems The port you are copying frames from L should always support an equal or lower speed than the port to which you are sending the copies In addition the target port for the mirroring cannot be a member of a trunk group Please note a target port and a source port cannot be the same port Port Description The DES 3550 supports a port description feature where the user may name various ports on the Switch To assign names to various ports click the Port Description on the Configuration menu 46 DES 3550 Layer 2 Port 1 r p Description 1 2 3 El 5 6 T amp J Figure 6 6 Port Description Setting and Port Description Table Use the From and To pull down menu to choose a port or range of ports to describe and then enter a description of the port s Click Apply to set the descriptions in the Port Description Table 47 fy
42. connect to another VLAN the link must be through an external router E Note If no VLANs are configured on the Switch then all packets will be forwarded to any destination port Packets with unknown source addresses will be flooded to all ports Broadcast and multicast packets will also be flooded to all ports An example is presented below VLAN Name Switch Ports System default 5 6 7 8 21 22 23 24 Engineering 9 10 11 12 Marketing 13 14 15 16 Finance 17 18 19 20 Sales 1 25 0 0 Table 6 1 VLAN Example Assigned Ports 66 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Port based VLANs Port based VLANs limit traffic that flows into and out of switch ports Thus all devices connected to a port are members of the VLAN s the port belongs to whether there is a single computer directly connected to a switch or an entire department On port based VLANs NICs do not need to be able to identify 802 10 tags in packet headers NICs send and receive normal Ethernet packets If the packet s destination lies on the same segment communications take place using normal Ethernet protocols Even though this 1s always the case when the destination for a packet lies on another switch port VLAN considerations come into play to decide if the packet 1s dropped by the Switch or delivered VLAN Segmentation Take for example a packet that is transmitted by a machine on Port 1 that is a member of VLAN 2 If the de
43. connected to the Switch via a twisted pair Category 5 UTP STP cable 23 DES 3550 Layer 2 Fast Ethernet Switch User s Guide E c CROSSOVER CABLE a Switch or Hub STRAIGHT CABLE Figure 3 2 Switch connected to a port on a hub or switch using either a straight or crossover cable any normal cable is fine Connecting To Network Backbone or Server The two Mini GBIC combo ports are ideal for uplinking to a network backbone or server The copper ports operate at a speed of 000 100 or IOMbps in ful l or half duplex mode The fiber optic ports can operate at 1000Mbps in full duplex mode Connections to the Gigabit Ethernet ports are made using fiber optic cable or Category 5 copper cable depending on the type of port A valid connection is indicated when the Link LED 1s lit Server Figure 3 3 Uplink Connection to a server 24 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Introduction To Switch Management Management Options Web based Management Interface SNMP Based Management Managing User Accounts Command Line Console Interface Through The Serial Port Connecting the Console Port RS 232 DCE First Time Connecting to The Switch Password Protection SNMP Settings IP Address Assignment Connecting Devices to the Switch Management Options This system may be managed out of band through the console port on the front panel or in band using Telnet The user may also choose the Web b
44. deleted To modify a Login Method List click on its hyperlinked Method List Name To configure a Method List click the Add button Both actions will result in the same screen to configure 122 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Login Method List Edit Show All Authentication Login Method List Entries Figure 7 12 Login Method List Edit default Show All Authentication Login Method List Entries Figure 7 13 Login Method List Add To define a Login Method List set the following parameters and click Apply Parameter Description Method List Name Enter a method list name defined by the user of up to 15 characters Method 1 2 3 4 The user may add one or a combination of up to four 4 of the following authentication methods to this method list tacacs Adding this parameter will require the user to be authenticated using the tacacs protocol from a remote tacacs server xtacacs Adding this parameter will require the user to be authenticated using the xtacacs protocol from a remote xtacacs server tacacs Adding this parameter will require the user to be authenticated using the tacacs protocol from a remote tacacs server server group Adding this parameter will require the user to be authenticated using a user defined server group previously configured on the Switch local Adding this parameter will require the user to be authenticated using the local user account
45. for authentication from the Candidate Switch before being added to the SIM group Click OK to enter the password or Cancel to exit the window Input password E x Password OK Cancel Java Applet Window Figure 10 15 Input password window Property To pop up a window to display the device information as shown below E X Device Nama kgefault 44 73 01 Module Mame pEs 3526 L Switch Mac Address 00 00 00 44 73 0 Remote Port No Property Local Part Mo m EE Fot Speed 100 Full Close Java Applet window Figure 10 16 Device Property window This window holds the following information Parameter Description 173 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Device Name This field will display the Device Name of the switches in the SIM group configured by the user If no Device Name is configured by the name it will be given the name default and tagged with the last six digits of the MAC Address to identify it Local Port Displays the number of the physical port on the CS that the MS or CaS is connected to The CS will have no entry in this field Displays the connection speed between the CS and the MS or CaS Remote Port Displays the number of the physical port on the MS or Cas that the CS is connected to The CS will have no entry in this field MAC Address Displays the MAC Address of the corresponding Switch Model Name Displays the full Model Name o
46. open the SNMP Host Table page as shown below To delete an existing SNMP Host Table entry click the corresponding amp under the Delete heading To display the current settings for an existing SNMP Group Table entry click the blue link for the entry under the Host IP Address heading Total Eniries l Note Insert a maximum of 10 entries into the table SNMP Host Table Community Name SNMPv3 User Name SAMF Version Figure 7 28 SNMP Host Table To add a new entry to the Switch s SNMP Group Table click the Add button in the upper left hand corner of the SNMP Host Table page This will open the SNMP Host Table Configuration page as shown below SNMP Host Table Configuration Host IP Address 0 0 0 0 SNMP Version v Community String SNMPv3 User Name show All SHME Host Table Entries Figure 7 29 SNMP Host Table Configuration The following parameters can be set Parameter Description IP Address Type the IP address of the remote management station that will serve as the 135 DES 3550 Layer 2 Fast Ethernet Switch User s Guide SNMP host for the Switch SNMP Version V1 To specify that SNMP version 1 will be used V2 To specify that SNMP version 2 will be used V3 NoAuth NoPriv To specify that the SNMP version 3 will be used with a NoAuth NoPriv security level V3 NoAuth NoPriv To specify that the SNMP version 3 will be used with a NoAuth NoPriv security level V3 Auth NoPriv
47. ports use an automatic selection of the two The default is Disabled Enable or disable MAC address learning for the selected ports When Enabled destination and source MAC addresses are automatically listed in the forwarding table When learning is Disabled MAC addresses must be manually entered into the forwarding table This is sometimes done for reasons of security or efficiency See the section on Forwarding Filtering for information on entering MAC addresses into the forwarding table The default setting is Disabled Click Apply to implement the new settings on the Switch Port Mirroring The Switch allows you to copy frames transmitted and received on a port and redirect the copies to another port You can attach a monitoring device to the mirrored port such as a sniffer or an RMON probe to view details about the packets passing through the first port This is useful for network monitoring and troubleshooting purposes To view the Port Mirroring window click Port Mirroring in the Configuration folder 45 DES 3550 Layer 2 Fast Ethernet Switch User s Guide 3 Setup Port Mirroring IM IM IM B g raw AN 3M IM JB a IN olola ojs e wwe ss oe 223 o ol arc ssie alsje a ie gt L 26 v E C Pati y Disabled let Mote 1 The Source Port and Target Fort should be different or the setup will be invalid ss ooe Mote 2The Target Fori should
48. that case the product is being sold As Is without any warranty whatsoever including without limitation the Limited Warranty as described herein notwithstanding anything stated herein to the contrary Submitting A Claim The customer shall return the product to the original purchase point based on its return policy In case the return policy period has expired and the product is within warranty the customer shall submit a claim to D Link as outlined below The customer must submit with the product as part of the claim a written description of the Hardware defect or Software nonconformance in sufficient detail to allow D Link to confirm the same The original product owner must obtain a Return Material Authorization RMA number from the Authorized D Link Service Office and if requested provide written proof of purchase of the product such as a copy of the dated purchase invoice for the product before the warranty service is provided After an RMA number is issued the defective product must be packaged securely in the original or other suitable shipping package to ensure that it will not be damaged in transit and the RMA number must be prominently marked on the outside of the package Do not include any manuals or accessories in the shipping package D Link will only replace the defective portion of the Product and will not ship back any accessories The customer is responsible for all in bound shipping charges to D Link No Cash on
49. the IEEE 802 1d STP RSTP can operate with legacy equipment implementing IEEE 802 1d however the advantages of using RSTP will be lost The IEEE 802 1w Rapid Spanning Tree Protocol RSTP evolved from the 802 1d STP standard RSTP was developed in order to overcome some limitations of STP that impede the function of some recent switching innovations in particular certain Layer 3 functions that are increasingly handled by Ethernet switches The basic function and much of the terminology is the same as STP Most of the settings configured for STP are also used for RSTP This section introduces some new Spanning Tree concepts and illustrates the main differences between the two protocols Port Transition States An essential difference between the two protocols is in the way ports transition to a forwarding state and in the way this transition relates to the role of the port forwarding or not forwarding in the topology RSTP combines the transition states disabled blocking and listening used in 802 1d and creates a single state Discarding In either case ports do not forward packets in the STP port transition states disabled blocking or listening or in the RSTP port state discarding there is no functional difference The port is not active in the network topology Table 5 7 below compares how the two protocols differ regarding the port state transition Both protocols calculate a stable topology in the same way Every segment will have a single
50. the IGMP Snooping Forwarding link Search IGMP Snooping Forwarding Table YLAN ID Multicast Group MAC Address 0 0 0 0 0 00 00 00 00 00 00 Port Member PB es ds 7 ie ip fio far jiz fas fos fis hie fir fis fio fao fan faz fas faa as 222222332 fas 36 e7 fas fao jao jer jaz jaa jes jas jse 7 jse jav jso Figure 8 16 IGMP Snooping Forwarding Table The user may search the IGMP Snooping Table by VID using the top left hand corner Search The following field can be viewed Parameter Description VLAN ID The VLAN ID VID of the multicast group Multicast Group The IP address of the multicast group MAC Address The MAC address of the multicast group These are the ports where the IGMP packets were snooped are displayed VLAN Status This allows the VLAN status for each of the Switch s ports to be viewed by the VLAN This window displays the ports on the Switch that are currently Egress or Untagged ports To view the following table open the Monitoring folder and click the VLAN Status Link 153 DES 3550 Layer 2 Fast Ethernet Switch User s Guide VLAN Status CINKMEN IT 1 default static Enabled Tag Poris pee BB es p dod jiz fis he ps is 7 fie jo eo fi g2 fes aes as er be bo o 1 f2 js pe fes fe 57 fe bo ko ja jaz jes jes jas jas CAMCN CNN pee Ep Eep ep ope fe Je hs pe Jr he Jo po p fe e po E E E E E E E E E JF E E E E E E E E E E E E E E E bs lo da o ho pi e bo ba fs pe br be bo lo a eo a l
51. using the Console Interface Each Switch must be assigned its own IP Address which is used for communication with an SNMP network manager or other TCP IP application for example BOOTP TFTP The Switch s default IP address 1s 10 90 90 90 You can change the default Switch IP address to meet the specification of your networking address scheme The IP address for the Switch must be set before it can be managed with the Web based manager The Switch IP address can be automatically set using BOOTP or DHCP protocols in which case the actual address assigned to the Switch must be known The IP address may be set using the Command Line Interface CLI over the console serial port as follows Starting at the command line prompt enter the commands config ipif System ipaddress XXX XXX XXX XXX yyy yyy YYY Yyy Where the x s represent the IP address to be assigned to the IP interface named System and the y s represent the corresponding subnet mask Alternatively you can enter config ipif System ipaddress xxx xxx xxx xxx z Where the x s represent the IP address to be assigned to the IP interface named System and the z represents the corresponding number of subnets in CIDR notation The IP interface named System on the Switch can be assigned an IP address and subnet mask which can then be used to connect a management station to the Switch s Telnet or Web based management agent The system message Success indicates that the command was executed successfu
52. 0 seconds To change this type in a different value representing the MAC address age out time in seconds The Aging Time can be set to any value between 10 and 1 000 000 seconds The default setting is 300 seconds IGMP Snooping To enable system wide IGMP Snooping capability select Enabled IGMP snooping is Disabled by default Enabling IGMP snooping allows you to specify use of a multicast router only see below To configure IGMP Snooping for individual VLANs use the IGMP Snooping page under the IGMP folder GVRP Status Use this pull down menu to Enable or Disable GVRP on the Switch Telnet Status Telnet configuration is Enabled by default If you do not want to allow configuration of the system through Telnet choose Disabled Web Status Web based management is Enabled by default If you choose to disable this by selecting Disabled you will lose the ability to configure the system through the Web interface as soon as these settings are applied Link Aggregation The algorithm that the Switch uses to balance the load across the ports that Algorithm make up the port trunk group is defined by this definition Choose MAC Source MAC Destination MAC Src amp Dest IP Source IP Destination or IP Src amp Dest See the Link Aggregation section of this manual 42 DES 3550 Layer 2 Fast Ethernet Switch User s Guide RMON Status Remote monitoring RMON of the Switch is Enabled or Disabled here 802 1x Status Enables or dis
53. 1 3023 8689 URL www dlink france fr E MAIL info dlink france fr D Link Central Europe D Link Deutschland GmbH Schwalbacher Strasse 74 D 65760 Eschborn Germany TEL 49 6196 77990 FAX 49 6196 7799300 BBS 49 0 6192 971199 analog amp BBS 49 0 6192 971198 ISDN INFO 00800 7250 0000 toll free amp HELP 00800 7250 4000 toll free REPAIR 00800 7250 8000 amp HELP support dlink de URL www dlink de amp E MAIL info dlink de D Link India Plot No 5 Kurla Bandra Complex Rd Off Cst Rd Santacruz East Mumbai 400 098 India TEL 91 022 2652 6696 6788 6623 FAX 91 022 2652 8914 8476 URL www dlink co in E MAIL service dlink co in amp tushars dlink co in D Link Mediterraneo Srl D Link Italia Via Nino Bonnet n 6 B 20154 Milano Italy TEL 39 02 2900 0676 FAX 39 02 2900 1723 URL www dlink it E MAIL info dlink it D Link Japan 10F 8 8 15 Nishi Gotanda Shinagawa ku Tokyo 141 Japan TEL 81 3 5434 9678 FAX 81 3 5434 9868 URL www d link co jp E MAIL kida d link co jp 185 Netherlands Norway Russia Singapore South Africa Spain Sweden Taiwan D Link Benelux Lichtenauerlaan 102 120 3062 ME Rotterdam Netherlands TEL 31 10 2045740 FAX 31 10 2045880 URL www d link benelux nl 8 www dlink benelux be E MAIL info dlink benelux com D Link Norway Karihaugveien 89 1086 Oslo TEL 47 22 309075 FAX 47 22 309085 SUPPORT 800 10 610 amp 800 10 240 DI xxx URL ww
54. 1Q ports are also assigned a PVID for use within the Switch If no VLANs are defined on the Switch all ports are then assigned to a default VLAN with a PVID equal to 1 Untagged packets are assigned the PVID of the port on which they were received Forwarding decisions are based upon this PVID as far as VLANs are concerned Tagged packets are forwarded according to the VID contained within the tag Tagged packets are also assigned a PVID but the PVID is not used to make packet forwarding decisions the VID is Tag aware switches must keep a table to relate PVIDs within the Switch to VIDs on the network The Switch will compare the VID of a packet to be transmitted to the VID of the port that 1s to transmit the packet If the two VIDs are different the Switch will drop the packet Because of the existence of the PVID for untagged packets and the VID for tagged packets tag aware and tag unaware network devices can coexist on the same network A switch port can have only one PVID but can have as many VIDs as the Switch has memory in its VLAN table to store them Because some devices on a network may be tag unaware a decision must be made at each port on a tag aware device before packets are transmitted should the packet to be transmitted have a tag or not If the transmitting port is connected to a tag unaware device the packet should be untagged If the transmitting port is connected to a tag aware device the packet should be tagged Tag
55. 3 WEB Enabled TCP 80 RMON Disabled Asymmetric VLAN Disabled DES 3550 48 Figure 4 4 Show switch command The Switch s MAC address can also be found from the Web management program on the Switch Information Basic Settings window on the Configuration menu The IP address for the Switch must be set before 1t can be managed with the Web based manager The Switch IP address can be automatically set using BOOTP or DHCP protocols in which case the actual address assigned to the Switch must be known The IP address may be set using the Command Line Interface CLI over the console serial port as follows 1 Starting at the command line prompt enter the commands config ipif System ipaddress xxx xxx xxx xxx yyy yyy yyy yyy Where the x s represent the IP address 3 DES 3550 Layer 2 Fast Ethernet Switch User s Guide to be assigned to the IP interface named System and the y s represent the corresponding subnet mask 2 Alternatively you can enter config ipif System ipaddress xxx xxx xxx xxx z Where the x s represent the IP address to be assigned to the IP interface named System and the z represents the corresponding number of subnets in CIDR notation The IP interface named System on the Switch can be assigned an IP address and subnet mask which can then be used to connect a management station to the Switch s Telnet or Web based management agent DES 3550 4 config ipif System ipaddress 180 53 13 175 255 0 0 6 Command con
56. 3432313I3I3932332329939939393933393 EN BE EB NE EN NE NE NN NN EN EN NN EN III II III II IN pply Shaw AL Static Router Ports Entries Figure 6 10 Static Router Ports Settings window The following parameters can be set Parameter Description VID VLAN ID This is the VLAN ID that along with the VLAN name identifies the VLAN where the multicast router is attached VLAN Name This is the name of the VLAN where the multicast router is attached These are the ports on the Switch that will have a multicast router attached to them Member Ports Click Apply to implement the new settings Click the Show All Static Router Port Entries link to return to the Current Static Router Port Entries window 50 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Spanning Tree The Switch supports 802 1d Spanning Tree Protocol STP and 802 1w Rapid Spanning Tree Protocol RSTP 802 1d STP will be familiar to most networking professionals However since 802 1w RSTP has been recently introduced to D Link managed Ethernet switches a brief introduction to the technology is provided below followed by a description of how to set up 802 1 d STP and 802 1w RSTP 802 1w Rapid Spanning Tree The Switch implements two versions of the Spanning Tree Protocol the Rapid Spanning Tree Protocol RSTP as defined by the IEEE 802 1w specification and a version compatible with
57. 4 PER IVIW ARE UPGRADES 0 E E 175 CONFIGURATION PILE BACKUP RESTORE ii A 176 CABLES AND CONNECTORS reete e eec eet thee o reet eb ce ton gere oo ibl vec cna ce otc eee cese Loses Aaaa raehan 179 CABLE LENG TS T M 180 GLOSSAR Y eoe MM 180 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Preface The DES 3550 Manual is divided into sections that describe the system installation and operating instructions with examples Section 1 Introduction Describes the Switch and its features Section 2 Installation Helps you get started with the basic installation of the Switch and also describes the front panel rear panel side panels and LED indicators of the Switch Section 3 Connecting the Switch Tells how you can connect the Switch to your Ethernet Fast Ethernet network Section 4 Introduction to Switch Management Introduces basic Switch management features including password protection SNMP settings IP address assignment and connecting devices to the Switch Section 5 Introduction to Web based Switch Management Talks about connecting to and using the Web based switch management feature on the Switch Section 6 Configuring the Switch A detailed discussion about configuring some of the basic functions of the Switch including accessing the Switch information using the Switch s utilities and setting up network configurations such as Quality of Service The Ac
58. 7890 a uplink D Link Ether Switch T N d IVIDC s Secure Client on Windows NT 2000 MDC s Secure Client MDC s Secure Client WD s Secure Client on Windows NT 2000 on Windows NT2000 on Windows N T 2000 ES Controlled port port blocked E p CM ES Controlled port port unblocked ER Uncontrolled port pal Unauthorized Figure 6 56 Typical 802 1x Configuration with User Authentication The user s information including account number password and configuration details such as IP address and billing information is stored in a centralized RADIUS server 105 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Account Password Usage IP Jane janel23 lhour RADIUS Server Peggy 123 D mins on Windows 2000 Server Sam 456 3 Yiumin 7890 802 1 X enabled 802 1X enabled 802 1 X enabled 802 1X enabled Ether Switch Ether Switch Ether Switch Ether Switch Figure 6 57 Typical Configuration with 802 1x Fully Implemented State Machine Name ort Timers state machine Authenticator PAE state machine The Authenticator Key Transmit state machine Reauthentication Timer state machine Backend Authentication state machine Controlled Directions state machine The Key Receive state machine Table 6 2 Conformance to IEEE 802 1x Standards The DES 3550 implements the server side of the IEEE 802 1x Port based Network Access Control This mechanism is intended to allow only authorized users or other network
59. 802 1p tag The tag is contained in the following two octets and consists of 3 bits of user priority 1 bit of Canonical Format Identifier CFI used for encapsulating Token Ring packets so they can be carried across Ethernet backbones and 12 bits of VLAN ID VID The 3 bits of user priority are used by 802 1p The VID is the VLAN identifier and is used by the 802 1Q standard Because the VID is 12 bits long 4094 unique VLANs can be identified The tag 1s inserted into the packet header making the entire packet longer by 4 octets All of the information originally contained in the packet 1s retained 63 DES 3550 Layer 2 Fast Ethernet Switch User s Guide TEEE 802 1Q Tag Octets 0 1 2 3 4 Destination Address 6 octets Source Address 6 octets EtherType 0x8100 Tag Control Information VA MAC Length Type Begining of Data Cyclic Redundancy Check 4 octets 3 bits 1 bit 12 bits Figure 6 18 IEEE 802 1Q Tag The EtherType and VLAN ID are inserted after the MAC source address but before the original EtherType Length or Logical Link Control Because the packet 1s now a bit longer than it was originally the Cyclic Redundancy Check CRC must be recalculated Adding an IEEE 802 1Q Tag Seud eei rginal Etherne Old Packet Dest Src Length EType Data i i CRC lt bo B bow New Tagged S N o Packet Y A a A Y New Dest Src
60. 912 1025 1646 1024 1518 5939 Figure 8 13 Rx Size Analysis window table 149 DES 3550 Layer 2 Fast Ethernet Switch User s Guide The following fields can be set or viewed Parameter Description Time Interval 1s Select the desired setting between 1s and 60s where s stands for seconds The default value is one second Record Number 200 Select number of times the Switch will be polled between 20 and 200 The default value is 20 The total number of packets including bad packets received that were 64 octets in length excluding framing bits but including FCS octets 65 127 The total number of packets including bad packets received that were between 65 and 127 octets in length inclusive excluding framing bits but including FCS octets The total number of packets including bad packets received that were between 128 and 255 octets in length inclusive excluding framing bits but including FCS octets The total number of packets including bad packets received that were between 256 and 511 octets in length inclusive excluding framing bits but including FCS octets The total number of packets including bad packets received that were between 512 and 1023 octets in length inclusive excluding framing bits but including FCS octets 1024 1518 The total number of packets including bad packets received that were between 1024 and 1518 octets in length inclusive excluding framing bits but including FCS octet
61. CP control frames In order to allow the linked port group to negotiate adjustments and make changes dynamically one end of the connection must have active LACP ports see above After setting the previous parameters click Apply to allow your changes to be implemented The LACP Port Table shows which ports are active and or passive Access Profile Table Configuring the Access Profile Table Access profiles allow you to establish criteria to determine whether or not the Switch will forward packets based on the information contained in each packet s header These criteria can be specified on a basis of VLAN MAC address or IP address Creating an access profile is divided into two basic parts The first is to specify which part or parts of a frame the Switch will examine such as the MAC source address or the IP destination address The second part 1s entering the criteria the Switch will use to determine what to do with the frame The entire process 1s described below in two parts To display the currently configured Access Profiles on the Switch open the Configuration folder and click on the Access Profile Table link This will open the Access Profile Table page as shown below Access Profile Table Figure 6 40 Access Profile Table To add an entry to the Access Profile Table click the Add button This will open the Access Profile Configuration page as shown below There are three Access Profile Configuration pages one for
62. Content Mask configuration window 94 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Access Profile Configuration fi Packet Content Mask ralue 16 31 sralue 32 47 ralue ds 63 valued 79 00D O DL Show All Access Profile Table Entries Figure 6 43 Access Profile Configuration window Packet Content Mask This screen will aid the user in configuring the Switch to mask packet headers beginning with the offset value specified The following fields are used to configure the Packet Content Masks Parameter Description Profile ID 1 255 Type in a unique identifier number for this profile set This value can be set from 1 255 Type Select profile based on Ethernet MAC Address IP address or packet content mask This will change the menu according to the requirements for the type of profile Select Ethernet to instruct the Switch to examine the layer 2 part of each packet header Select IP to instruct the Switch to examine the IP address in each frame s header Select Packet Content Mask to specify a mask to hide the content of the packet header Offset This field will instruct the Switch to mask the packet header beginning with 95 DES 3550 Layer 2 Fast Ethernet Switch User s Guide the offset value specified value 0 15 Enter a value in hex form to mask the packet from the beginning of the packet to the 16 byte value 16 31 Enter a value in hex form to mask the p
63. D Link DES 3550 Managed 48 port 10 100Mbps and 2GE ports Layer 2 Ethernet Switch Manual DES 3550 Layer 2 Fast Ethernet Switch User s Guide Information in this document is subject to change without notice O 2005 D Link Computer Corporation All rights reserved Reproduction in any manner whatsoever without the written permission of D Link Computer Corporation is strictly forbidden Trademarks used in this text D Link and the D LINK logo are trademarks of D Link Computer Corporation Microsoft and Windows are registered trademarks of Microsoft Corporation Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products D Link Computer Corporation disclaims any proprietary interest in trademarks and trade names other than its own February 2005 P N 651ES3526015 FCC Warning This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and 1f not installed and used in accordance with this manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be re
64. Delay 4 30 5ec Bridge Priority 0 61440 Sec SIP Version TZ Hold Couni 1 10 Forwarding BPDU Designated Root Bridge Root Priority Cost io Root Root Fort Time Topology Change secs Topology Changes Count Protocol Specification Max Age Hello Time Forward Delay Hold Time Note 24 Borward Delap I gt Max Age Marx Age Hello Time ti Figure 6 11 STP Switch Settings Configure the following parameters and click the Apply button to implement them Parameter Description This field can be toggled between Enabled and Disabled using the pull down menu This will enable or disable the Spanning Tree Protocol STP globally for the Switch Spanning Tree Protocol lt Disabled gt The Max Age can be set from 6 to 40 seconds At the end of the Max Age if a BPDU has still not been received from the Root Bridge your Switch will start sending its own BPDU to all other Switches for permission to become the Root Bridge If it turns out that your Switch has the lowest Bridge Identifier it will become the Root Bridge Bridge Max Age 6 40 sec lt 20 gt The Hello Time can be set from 1 to 10 seconds This is the interval between two transmissions of BPDU packets sent by the Root Bridge to tell all other Switches that it is indeed the Root Bridge Bridge Hello Time 1 10 sec lt 2 gt 53 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Bridge Forward Delay 4 30 sec lt 15 gt
65. EEE 802 3 IOBASE T networks RMON Remote Monitoring A subset of SNMP MIB II that allows monitoring and management capabilities by addressing up to ten different groups of information RPS Redundant Power System A device that provides a backup source of power when connected to the Switch server farm A cluster of servers in a centralized location serving a large user population SLIP Serial Line Internet Protocol A protocol that allows IP to run over a serial line connection SNMP Simple Network Management Protocol A protocol originally designed to be used in managing TCP IP internets SNMP is presently implemented on a wide range of computers and networking equipment and may be used to manage many aspects of network and end station operation Spanning Tree Protocol STP A bridge based system for providing fault tolerance on networks STP works by allowing you to implement parallel paths for network traffic and to ensure that redundant paths are disabled when the main paths are operational and enabled if the main paths fail stack A group of network devices that are integrated to form a single logical device standby port The port in a resilient link that will take over data transmission if the main port in the link fails 182 switch A device that filters forwards and floods packets based on the packet s destination address The Switch learns the addresses associated with each switch port and builds tables based on this informa
66. ES AND CAUTIONS nidad IX SAEETYINSTRUCTIQONSY d seeeresiee eee vo nee sosse aonni re NEEE E ESS RE NR AUN en e PUPVER neon IX NAAA vbt nd doi or ta tat mieten med tus ion a cna V rictu ues Urt Du Ut xX General Precautions for Rack Mountable Products ooonnooooconuccnonnnononnnncnnnanananannn non nnnnnnnnnononnnnnanannnnn nro n nn nnnnnnnnss xi Protectime Aequist Electrostatic DIS CRIT O usse edat eive ert esr eod osi eu ome ei aie xii INTRODUCTION T T aN 13 ETHERNET TECHNOLOGY ta E ae 13 FAST Emere CONNOVO OS aseo A rated eed etes un en M OO IS 13 GUDU Eihernet TE NOOO V ara daa 13 SWITEHING TECHBNOEOGHU ad creas ecg Dd TE E RETT tddi 14 NICO DESCRIPTO E E E E EO A A T 14 T COUTOS A A a To POT EEEE EE e E A e 16 ERONTSPANEECOMPONENTS coen A aM ben EEE eM UE I M PM Ni 17 LE DANGU O Su alata O tdem no e m M oM m e au due LM Eds 17 REAR PANED DESCRIPTION ta o d E eM dus tqu eo cdutunsn 18 SIDE PANEL DESCRIPTION m sin dani but need a tad abe ii diiit adis 18 GIG ABIDE ONBDO PORTS nia 18 INSTALLATION reaa A A lloc ica 20 Paekdse CONTEST pu Eel ides dicet ates 20 BEFORE YOU CONNECT TO THE NETWORK Jis ioi RR best ipu due Me oa 20 INSTALLING THE SWITCH WITHOUT THE RACK die 2l INSTALLING THE SWITCH IN A RACK decies Euer epe uai eus tovt ae tur eeu dua quU dedu bd 21 Mounting the Switch in a standard 19 rOCk cooooononinnnuuunoononaonancnonnnnnnnnnnnnnano nn nnnnnnnnonnnnnnnnnnnnnnnnn nn nono nnnnnnnonnnncnnnnns 22 PONER
67. Ethernet or MAC address based profile configuration one for IP address based profile configuration and one for the Packet Content Mask You can switch between the three Access Profile Configuration pages by using the Type drop down menu The page shown below is the Ethernet Access Profile Configuration page 91 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Access Profile Configuration Destination Mac 802 1p Shaw All Access Profile Table Entries Figure 6 41 Access Profile Table Ethernet The following parameters can be set for Ethernet Parameter Description Profile ID 1 255 de identifier number for this profile set This value can be set Select profile based on Ethernet MAC Address IP address or packet content mask This will change the menu according to the requirements for the type of profile Select Ethernet to instruct the Switch to examine the layer 2 part of each packet header Select IP to instruct the Switch to examine the IP address in each frame s header Select Packet Content Mask to specify a mask to hide the content of the packet header Vlan Selecting this option instructs the Switch to examine the VLAN part of each packet header and use this as the full or partial criterion for forwarding Source MAC Mask Enter a MAC address mask for the source MAC address Destination MAC Mask Enter a MAC address mask for the destination MAC Destination Mac Ed Bess Selecting this option
68. ID of the incoming packet to its PVID If the two are unequal the port will drop the packet If the two are equal the port will receive the packet The Group VLAN Registration Protocol GVRP enables the port to Sun dynamically become a member of a VLAN GVRP is disabled by default This field can be toggled using the space bar between Enabled and Disabled Enabled enables the port to compare the VID tag of an incoming packet with the PVID number assigned to the port If the two are different the port filters drops the packet Disabled disables Ingress filtering Ingress Checking is disabled by default This field denotes the type of frame that will be accepted by the port The Acceptable Frame user may choose between Tagged Only which means only VLAN tagged Type frames will be accepted and Admit All which means both tagged and untagged frames will be accepted Admit All is enabled by default Click Apply to implement the changes made Port Bandwidth The bandwidth control settings are used to place a ceiling on the transmitting and receiving data rates for any selected port In the Configuration folder click Port Bandwidth to view the screen shown below 71 DES 3550 Layer 2 From To ape NoLimit O Rate pp Port Port E Disabled EX Rate Mhit sec ee M CO CS La E Li bi HA Bal p gx 1 Apply TX Rate Mhit sec no limit no limit no limit no limit no limit no limit no limi
69. ILITY OR OTHER LEGAL OR EQUITABLE THEORY FOR ANY LOSS OF USE OF THE PRODUCT INCONVENIENCE OR DAMAGES OF ANY CHARACTER WHETHER DIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL INCLUDING BUT NOT LIMITED TO DAMAGES FOR LOSS OF GOODWILL LOSS OF REVENUE OR PROFIT WORK STOPPAGE COMPUTER FAILURE OR MALFUNCTION FAILURE OF OTHER EQUIPMENT OR COMPUTER PROGRAMS TO WHICH D LINK S PRODUCT IS CONNECTED WITH LOSS OF INFORMATION OR DATA CONTAINED IN STORED ON OR INTEGRATED WITH ANY PRODUCT RETURNED TO D LINK FOR WARRANTY SERVICE RESULTING FROM THE USE OF THE PRODUCT RELATING TO WARRANTY SERVICE OR ARISING OUT OF ANY BREACH OF THIS LIMITED WARRANTY EVEN IF D LINK HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES THE SOLE REMEDY FOR A BREACH OF THE FOREGOING LIMITED WARRANTY IS REPAIR REPLACEMENT OR REFUND OF THE DEFECTIVE OR NON CONFORMING PRODUCT THE MAXIMUM LIABILITY OF D LINK UNDER THIS WARRANTY IS LIMITED TO THE PURCHASE PRICE OF THE PRODUCT COVERED BY THE WARRANTY THE FOREGOING EXPRESS WRITTEN WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ANY OTHER WARRANTIES OR REMEDIES EXPRESS IMPLIED OR STATUTORY Governing Law This Limited Warranty shall be governed by the laws of the State of California Some states do not allow exclusion or limitation of incidental or consequential damages or limitations on how long an implied warranty lasts so the foregoing limitations and exclusions may not apply This limited warranty provides specific legal rig
70. IP address you specify The destination node then responds to or echoes the packets sent from the Switch This is very useful to verify connectivity between the Switch and other nodes on the network 159 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Enter the IP address of the device or station you want to ping then click Start Target IP Address 0 0 0 0 Repeat Pinging for Infinite times C times 1 255 Start Figure 9 6 Ping Test The user may use Infinite times checkbox in the Repeat Pinging for field which will tell the ping program to keep sending ICMP Echo packets to the specified IP address until the program is stopped The user may opt to choose a specific number of times to ping the Target IP Address by clicking 1ts radio button and entering a number between 1 and 255 Click Start to initiate the Ping program Saving Changes The DES 3550 has two levels of memory normal RAM and non volatile or NV RAM Configuration changes are made effective by clicking the Apply button When this is done the settings will be immediately applied to the switching software in RAM and will immediately take effect Some settings though require you to restart the Switch before they will take effect Restarting the Switch erases all settings in RAM and reloads the stored settings from the NV RAM Thus it is necessary to save all setting changes to NV RAM before rebooting the Switch To retain any configuration c
71. Information Base module Consequently values for MIB objects can be retrieved from any SNMP based network management software In addition to the standard MIB II the Switch also supports its own proprietary enterprise MIB as an extended Management Information Base The proprietary MIB may also be retrieved by specifying the MIB Object Identifier MIB values can be either read only or read write IP Address Assignment Each Switch must be assigned its own IP Address which is used for communication with an SNMP network manager or other TCP IP application for example BOOTP TFTP The Switch s default IP address 1s 10 90 90 90 You can change the default Switch IP address to meet the specification of your networking address scheme The Switch is also assigned a unique MAC address by the factory This MAC address cannot be changed and can be found by entering the command show switch into the command line interface as shown below Device Type DES 3558 Fast Ethernet Switch Combo Port Type 1000Base T 1000Base T MAC Address 80 01 02 03 04 00 IP Address 10 53 13 50 Manual VLAN Name default Default Gateway 8 0 0 0 Boot PROM Version Build 3 00 6001 Firmware Version Build 1 00 B03 Hardware Version 2A1 Device S N Poert Status Main Abnormal Redundant Present System Name i System Location System Contact Spanning ree Disabled GVRP Disabled IGMP Snooping Disabled TELNET Enabled TCP 2
72. MP User Table page This will open the SNMP User Table Configuration page as shown below SNMP User Table Configuration r Hame o Group Name P SNMP Version l encrypted Auth Protocol MD5 m Password Priv Protocol i Apply Show Al SNMP User Table Entries Figure 7 22 SNMP User Table Configuration The following parameters can be set Parameter Description An alphanumeric string of up to 32 characters This is used to identify the SNMP users This name is used to specify the SNMP group created can request SNMP Group Name messages V1 Specifies that SNMP version 1 will be used V2c Specifies that SNMP version 2 will be used V3 Specifies that SNMP version 3 will be used SNMP Version MD5 Specifies that the HMAC MD5 96 authentication level will be used SHA Specifies that the HMAC SHA authentication protocol will be used Auth Protocol None Specifies that no authorization protocol is in use Priv Protocol DES Specifies that DES 56 bit encryption is in use based on the CBC DES DES 56 standard 130 DES 3550 Layer 2 Fast Ethernet Switch User s Guide encrvpted Checking the corresponding box will enable encryption for SNMP V3 and is yP only operable in SNMP V3 mode To implement the changes click Apply To return to the SNMP User Table click the Show All SNMP User Table Entries link SNMP View Table The SNMP View Table is used to assign views to community strings that d
73. N segments into an autonomous user group that appears as a single LAN VLANS also logically segment the network into different broadcast domains so that packets are forwarded only between ports within the VLAN Typically a VLAN corresponds to a particular subnet although not necessarily VLANs can enhance performance by conserving bandwidth and improve security by limiting traffic to specific domains A VLAN is a collection of end nodes grouped by logic instead of physical location End nodes that frequently communicate with each other are assigned to the same VLAN regardless of where they are physically on the network Logically a VLAN can be equated to a broadcast domain because broadcast packets are forwarded to only members of the VLAN on which the broadcast was initiated Notes About VLANs on the DES 3550 No matter what basis 1s used to uniquely identify end nodes and assign these nodes VLAN membership packets cannot cross VLANs without a network device performing a routing function between the VLANs The DES 3550 supports IEEE 802 1Q VLANs and Port Based VLANs The port untagging function can be used to remove the 802 10 tag from packet headers to maintain compatibility with devices that are tag unaware The Switch s default is to assign all ports to a single 802 1Q VLAN named default The default VLAN has a VID 1 The member ports of Port based VLANs may overlap if desired IEEE 802 1Q VLANs Some relevant te
74. ON ee 22 Power Eaillesuessdvusuldtsts O easet pulis Metti rebat c UM ILI EON 22 CONNECTING THE SWITCH suscita cli 23 SMITH TO END NODE ario aE ER id 23 SWITCH TO HUB OR SWITCH id 23 CONNECTING TO NETWORK BACKBONE OR SERVER vuige eor t E EE EENE ENE EET REE 24 INTRODUCTION TO SWITCH MANAGEMENT sseeseesccsccsccscesccsccscesccsccscceccescesossossossoescesocsosscescesocssesocssesse 25 MANAGEMENT OPTION Said acess 25 Web based Management Inter aGeq ta es eoo nes dks NEE YR SEO vana resu Ss ba aas os Creme x tuve cuu xb Usu dn a n Prado ei ee dpa E ENS 25 SNMPSBOSedMaruiusemelhiatscsee nn ERE RU OREO 23 Command Line Console Interface Through The Serial Port eese eese eene 25 Connecting the Console Port RS 2Z32DCE Nit 25 First ime Conmectuo TO INE SWILEH A ge votes et A doi a ete dat de s 2 PASS WORD PROTEC ON GG nest tenete onec dE ctu ce E AE AE uim 29 SAMT SNO S da Em SD stb rat aui d Vea qM t ELE au up MM 29 IP ADDRESS ASSIGNMEBNI s tases ctecee oad cae trata Bie Gusti duties ia 31 CONNECTING DEVICES TO THE SWITCH ati des 32 INTRODUCTION TO WEB BASED SWITCH CONFIGURATION o ccccccccconncccccocooccccccnonoccconccacncccncccncccconsns 34 Web based USEF IUT UCO yrit iea EE AA 35 CONFIGURING THE SWEEIG His aaa 37 DADO ESSE E du A 37 DSWELCHEINEORNDATION a A E o Oo RUE 40 ATIS EI 0171010 MR ds 40 ZO aed SCLIN SA NAAA A aut edad te uice e o adea 41 PORT CONFIGURATIONS sisi A AA AAA A bd elu de
75. P address that determines where packets with a destination address outside the current subnet should be sent This is usually the address of a router or a host acting as an IP gateway If your network is not part of an intranet or you do not want the Switch to be accessible outside your local network you can leave this field unchanged This allows the entry of a VLAN Name from which a management station will be allowed to manage the Switch using TCP IP in band via web manager or Telnet Management stations that are on VLANs other than the one entered here will not be able to manage the Switch in band unless their IP addresses are entered in the Security IP Management menu If VLANs have not yet been configured for the Switch the default VLAN contains all of the Switch s ports There are no entries in the Security IP Management table by default so any management station that can connect to the Switch can access the Switch until a management VLAN is specified or Management Station IP Addresses are assigned This field will allow the user the enable or disable the Admin state for the IP interface by the using the pull down menu Disabling this feature will render all remote management inoperable and thus the only way to configure the Switch will be to use the Console port for the Command Line Interface Click Apply to make your changes take effect 39 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Setting the Switch s IP Address
76. Protocol support e EEE 802 1x Port based and MAC based Access Control e EEE 802 1Q VLAN e EEE 802 1D Spanning Tree and IEEE 802 1W Rapid Spanning Tree support e Access Control List ACL support e Single IP Management support e Access Authentication Control utilizing TACACS XTACACS and TACACS e Dual Image Firmware e Simple Network Time Protocol support e MAC Notification support e Asymmetric VLAN support e System and Port Utilization support e System Log Support e High performance switching engine performs forwarding and filtering at full wire speed maximum 14 881 packets sec on each 10Mbps Ethernet port and maximum 148 810 packet sec on 100Mbps Fast Ethernet port e Full and half duplex for both 10Mbps and 100Mbps connections Full duplex allows the switch port to simultaneously transmit and receive data It only works with connections to full duplex capable end stations and switches Connections to a hub must take place at half duplex e Supports broadcast storm filtering e Non blocking store and forward switching scheme capability to support rate adaptation and protocol conversion e Supports by port Egress Ingress rate control e Efficient self learning and address recognition mechanism enables forwarding rate at wire speed e Supports port based enable and disable 15 DES 3550 Layer 2 Fast Ethernet Switch User s Guide e Address table Supports up to 8K MAC addresses per device e Supports a packet buff
77. S XTACACS An extension of the TACACS protocol with the ability to provide more types of authentication requests and more types of response codes than TACACS This protocol also uses UDP to transmit packets e TACACS Terminal Access Controller Access Control System plus Provides detailed access control for authentication for network devices TACACS is facilitated through Authentication commands via one or more centralized servers The TACACS protocol encrypts all traffic between the Switch and the TACACS daemon using the TCP protocol to ensure reliable delivery In order for the TACACS XTACACS TACACS security function to work properly a TACACS XTACACS TACACS server must be configured on a device other than the Switch called an Authentication Server Host and 1t must include usernames and passwords for authentication When the user is prompted by the Switch to enter usernames and passwords for authentication the Switch contacts the TACACS XTACACS TACACS server to verify and the server will respond with one of three messages e The server verifies the username and password and the user is granted normal user privileges on the Switch e The server will not accept the username and password and the user 1s denied access to the Switch e The server does not respond to the verification query At this point the Switch receives the timeout from the server and then moves to the next method of verification configured in the meth
78. SECTION 1 Introduction Ethernet Technology Switch Description Features Ports Front Panel Components Side Panel Description Rear Panel Description Gigabit Combo Ports Ethernet Technology Fast Ethernet Technology The growing importance of LANs and the increasing complexity of desktop computing applications are fueling the need for high performance networks A number of high speed LAN technologies are proposed to provide greater bandwidth and improve client server response times Among them Fast Ethernet or LOOBASE T provides a non disruptive smooth evolution from IOBASE T technology 100Mbps Fast Ethernet is a standard specified by the IEEE 802 3 LAN committee It is an extension of the 10Mbps Ethernet standard with the ability to transmit and receive data at 100Mbps while maintaining the Carrier Sense Multiple Access with Collision Detection CSMA CD Ethernet protocol Gigabit Ethernet Technology Gigabit Ethernet is an extension of IEEE 802 3 Ethernet utilizing the same packet structure format and support for CSMA CD protocol full duplex flow control and management objects but with a tenfold increase in theoretical throughput over 100Mbps Fast Ethernet and a one hundred fold increase over 10Mbps Ethernet Since it is compatible with all 10Mbps and 100Mbps Ethernet environments Gigabit Ethernet provides a straightforward upgrade without wasting a company s existing investment in hardware software and trained personnel
79. SIM group Thus the CS cannot directly be converted to a MS gt The user can manually configure a CS to become a CaS A MS can become a CaS by Being configured as a CaS through the CS If report packets from the CS to the MS time out The user can manually configure a CaS to become a CS gt The CaS can be configured through the CS to become a MS After configuring one switch to operate as the CS of a SIM group additional DES 3550 switches may join the group either by an automatic method or by manually configuring the switch to be a MS The CS will then serve as the in band entry point for access to the MS The CS s IP address will become the path to all MS s of the group and the CS s Administrator s password and or authentication will control access to all MS s of the SIM group With SIM enabled the applications in the CS will redirect the packet instead of executing the packets The applications will decode the packet from the administrator modify some data and then send it to the MS After execution the CS may receive a response packet from the MS which it will encode and send it back to the administrator When a CS becomes a MS it automatically becomes a member of the first SNMP community include read write and read only to which the CS belongs However if a MS has its own IP address it can belong to SNMP communities to which other switches in the group including the CS do not belong SIM Using the Web Interface
80. THORIZED ATTEMPTS TO REPAIR OR ANY OTHER CAUSE BEYOND THE RANGE OF THE INTENDED USE OR BY ACCIDENT FIRE LIGHTNING OR OTHER HAZARD LIMITATION OF LIABILITY IN NO EVENT WILL D LINK BE LIABLE FOR ANY DAMAGES INCLUDING LOSS OF DATA LOSS OF PROFITS COST OF COVER OR OTHER INCIDENTAL CONSEQUENTIAL OR INDIRECT DAMAGES ARISING OUT THE INSTALLATION MAINTENANCE USE PERFORMANCE FAILURE OR INTERRUPTION OF A D LINK PRODUCT HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY THIS LIMITATION WILL APPLY EVEN IF D LINK HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE IF YOU PURCHASED A D LINK PRODUCT IN THE UNITED STATES SOME STATES DO NOT ALLOW THE LIMITATION OR EXCLUSION OF LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU Limited Warranty Hardware 188 D Link warrants each of its hardware products to be free from defects in workmanship and materials under normal use and service for a period commencing on the date of purchase from D Link or its Authorized Reseller and extending for the length of time stipulated by the Authorized Reseller or D Link Branch Office nearest to the place of purchase This Warranty applies on the condition that the product Registration Card is filled out and returned to a D Link office within ninety 90 days of purchase A list of D Link offices is provided at the back of this manual together with a copy of the Registration Card If the product proves defective within
81. Table To add a new user click on the Add button To modify or delete an existing user click on the Modify button for that user 115 DES 3550 Layer 2 Fast Ethernet Switch User s Guide if 1J SSE NewPasswrd IS Confirm New Password Ss da TT do el ACcau it h odi Apple show All User Account Entries Figure 7 3 User Accounts Modify Table Add Add a new user by typing in a User Name and New Password and retype the same password in the Confirm New Password Choose the level of privilege Admin or User from the Access Right drop down menu User Account Modify Ta User Name Old Password New Password Confirm New Password Access Right Apply Delete Show All User Account Entries Figure 7 4 Modify User Accounts Modify or delete an existing user account in the User Account Modify Table To delete the user account click on the Delete button To change the password type in the New Password and retype it in the Confirm New Password entry field Choose the level of privilege Admin or User from the Access Right drop down menu Admin and User Privileges There are two levels of user privileges Admin and User Some menu selections available to users with Admin privileges may not be available to those with User privileges The following table summarizes the Admin and User privileges Management Admin User Configuration Yes Read Only Network Monitoring Yes Read O
82. a loop when a storm is formed because a MAC address cannot be located in the Switch s forwarding database and it must send a packet to all ports or all ports on a VLAN To configure Traffic Control first select a group of ports by using the Group pull down menu As seen in the figure above this section is set by 8 specified groups of ports on the Switch Group 1 refers to ports 1 through 8 Group 2 refers to ports 9 through 16 Group 3 refers to ports 17 through 24 Group 4 refers to ports 25 through 32 Group 5 refers to ports 33 through 40 Group 6 refers to ports 41 through 48 Group 7 refers to mini GBIC port 49 Group 8 refers to mini GBIC port 50 Broadcast Storm Multicast Storm and Destination Unknown may be Enabled or Disabled for either group The Threshold value is the upper threshold at which the specified traffic control is switched on This is the number of Broadcast Multicast or DLF packets in Kbps received by the Switch that will trigger the storm traffic control measures The Threshold value can be set from O to 255 packets The default setting is 128 The settings of each port may be viewed in the Traffic Control Table in the same window Click Apply to implement changes made 802 1p Default Priority The Switch allows the assignment of a default 802 1p priority to each port on the Switch In the Configuration folder open the QoS folder and click 802 1p Default Priority to view the screen shown below 79 0 0 O 0 0
83. ables 802 1x default is Disabled 802 1x The user may use the pull down menu to choose between Radius Eap and Authentication Radius Pap for the 802 1x authentication protocol on the Switch The default Protocol setting is Radius Eap Asymmetric Vlan This field will enable or disable Asymmetric VLANs on the Switch The default is Disabled Syslog Global State Syslog Global State State Enables or disables Syslog State default is Disabled Click Apply to implement changes made to this window NOTE When the Asymmetric VLAN function is Disabled the user must change the VLAN setting on the Switch to its default configurations Port Configurations This section contains information for configuring various attributes and properties for individual physical ports including port speed and flow control Clicking on Port Configurations in the Configuration menu will display the following window for the user 43 DES 3550 Layer 2 Port Port Disabled Auto Disabled Disabled y Apply 1 Enabled uta LOOM Full H one Disabled Enabled 2 Enabled Auta Link Down Disabled Enabled 5 Enabled Auta Link Down Disabled Enabled 4 Enabled Auta Link Down Disabled Enabled 5 Enabled Auta Link Down Disabled Enabled B Enabled Auta Link Down Disabled Enabled T Enabled Auto Link Down Disabled Enabled E Enabled Auta Link Down Disabled Enabled J Enabled Auta Link Down Disabled Enabled 10 Enabled Auta Link Down Disabled Enabled
84. access the Switch tacacs Adding this parameter will require the user to be authenticated using the tacacs protocol from a remote tacacs server xtacacs Adding this parameter will require the user to be authenticated using the xtacacs protocol from a remote xtacacs server tacacs Adding this parameter will require the user to be authenticated using the tacacs protocol from a remote tacacs server server group Adding a previously configured server group will require the user to be authenticated using a user defined server group previously configured on the Switch 125 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Local Enable Password This window will configure the locally enabled password for the Enable Admin command When a user chooses the Local_Enable method to promote user level privileges to administrator privileges he or she will be prompted to enter the password configured here that 1s locally set on the Switch To view the following window click Management gt Access Authentication Control gt Local Enable Password Configure Local enable password Old Local Enabled New Local Enahled Confirm Local Enabled Figure 7 17 Configure Local Enable Password window To set the Local Enable Password set the following parameters and click Apply Parameter Description Old Local Enabled If a password was previously configured for this entry enter it here in order to change it to a ne
85. acket from byte 16 to byte 31 value 32 47 Enter a value in hex form to mask the packet from byte 32 to byte 47 value 48 63 Enter a value in hex form to mask the packet from byte 48 to byte 63 value 64 79 Enter a value in hex form to mask the packet from byte 16 to byte 31 The user may set the Access Profile Table on a per port basis by entering an entry in this field Entering all will denote all ports on the Switch Click Apply to implement changes made To establish the rule for a previously created Access Profile In the Configuration folder click the Access Profile Table link opening the Access Profile Table Under the heading Access Rule clicking Modify will open the following window Add Access Rule T ahle IP X A F errmut View Show Al Access Profile Entries Figure 6 44 Access Rule Table window To create a new rule set for the access profile click the Add button A new window is A displayed To remove a previously created rule select 1t and click the 5 button 96 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Access Rule Configuration Permit Deny e E I Replace Friority with Figure 6 45 Access Rule Configuration window IP Configure the following Access Rule Configuration settings Parameter Description Profile ID This is the identifier number for this profile set Select Permit to specify th
86. ad E Update Section 1 Ben optando pa poa TN ns pr Boot 1 00 B07 210865300008 days 00 53 4510 53 13 94 Anonymous Apply z 1 00 B04207190000000 days 00 09 12 10 47 44 50 Anonymous Apply X Free Space 5932160bytes Figure 9 1 Download Update Firmware from TFTP Server The Switch can hold two firmware versions for the user which can be specified in the Type field by clicking the Update radio button and selecting the Section ID Section 1 or Section 2 To download or update firmware configure the following fields and click Start Parameter Description Enter the IP address of the server from which you wish to download firmware opecify the path and filename of the firmware on the Server 156 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Specify the purpose of the firmware Download Clicking this radio button will specify a download to the Switch This will be the firmware that the Switch will immediately use Update Clicking this radio button will save the firmware to the Switch s memory but not configure the Switch for this firmware The Switch may hold two firmware versions specified as Section 1 and Section 2 Information about firmware on the Switch can be viewed in the Firmware Management table in the same screen It holds the following information Parameter Description LE The user defined Section ID of the firmware on the Switch The firmware that is currently being run on the Switc
87. arning can be locked such that the current source MAC addresses entered into the MAC address forwarding table can not be changed once the port lock is enabled The port can be locked by using the Admin State lt Disabled gt pull down menu to Enabled and clicking Apply This 1s a security feature that prevents unauthorized computers with source MAC addresses unknown to the Switch prior to locking the port or ports from connecting to the Switch s locked ports and gaining access to the network 76 DES 3550 Layer 2 pe IN Lock Address Mode Port v lPat Disabled fi IDeleteOnReset Apply EN Tax Learning Addr Lock Address Mode Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled E A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A T A A A A A A A SE DieleteInheset LieleteOnEeset LieleteOnEeset DieletelInheset DieletelInheset DieletelInheset DieletelInheset Deletelnkeset Deletelnkeset Deletelnkeset Deletelnkeset DeleteOnkeset DeletelnReset DeletelnReset
88. ased management accessible through a Web browser Web based Management Interface After you have successfully installed the Switch you can configure the Switch monitor the LED panel and display statistics graphically using a Web browser such as Netscape Navigator version 6 2 and higher or Microsofte Internet Explorer version 5 0 SNMP Based Management You can manage the Switch with an SNMP compatible console program The Switch supports SNMP version 1 0 version 2 0 and version 3 0 The SNMP agent decodes the incoming SNMP messages and responds to requests with MIB objects stored in the database The SNMP agent updates the MIB objects to generate statistics and counters Command Line Console Interface Through the Serial Port You can also connect a computer or terminal to the serial console port to access the Switch The command line driven interface provides complete access to all Switch management features Connecting the Console Port RS 232 DCE The Switch provides an RS 232 serial port that enables a connection to a computer or terminal for monitoring and configuring the Switch This port is a female DB 9 connector implemented as a data terminal equipment DTE connection 25 DES 3550 Layer 2 Fast Ethernet Switch User s Guide To use the console port you need the following equipment e A terminal or a computer with both a serial port and the ability to emulate a terminal e A null modem or crossover RS 232 cable wit
89. asil Ltda Rua Tavares Cabral 102 Conj 31 e 33 05423 030 Pinheiros Sao Paulo Brasil TEL 5511 3094 2910 to 2920 FAX 5511 3094 2921 URL www dlink com br D Link Canada 2180 Winston Park Drive Oakville Ontario L6H 5W1 Canada TEL 1 905 829 5033 FAX 1 905 829 5223 BBS 1 965 279 8732 FTP ftp dlinknet com TOLL FREE 1 800 354 6522 URL www dlink ca E MAIL techsup dlink ca D Link South America Sudam rica Isidora Goyenechea 2934 Oficina 702 Las Condes Santiago Chile TEL 56 2 232 3185 FAX 56 2 232 0923 URL www dlink com cl D Link Beijing Level 5 Tower W1 The Tower Oriental Plaza No 1 East Chang An Ave Dong Cheng District Beijing 100738 China TEL 8610 85182529 30 31 32 33 FAX 8610 85182250 URL www dlink com cn E MAIL webmaster gdlink com cn D Link Denmark Naverland 2 DK 2600 Glostrup Copenhagen Denmark TEL 45 43 969040 FAX 45 43 424347 URL www dlink dk E MAIL info dlink dk 184 Egypt Finland France Germany India Italy Japan D Link Middle East 7 Assem Ebn Sabet Street Heliopolis Cairo Egypt TEL 202 624 4615 FAX 202 624 583 URL www dlink me com E MAIL support dlink me com amp dlinkegypt dlink me com D Link Finland Pakkalankuja 7A 01510 Vantaa Finland TEL 358 9 2707 5080 FAX 358 9 2707 5081 URL www dlink fi com D Link France Le Florilege No 2 All e de la Fresnerie 78330 Fontenay le Fleury France TEL 33 1 3023 8688 FAX 33
90. at the packets that match the access profile are forwarded by the Switch according to any additional rule added see below Select Deny to specify that packets that do not match the access profile are not forwarded by the Switch and will be filtered me Type in a unique identifier number for this access This value can be set from 1 50 Selected profile based on Ethernet MAC Address IP address or Packet Content Mask Ethernet instructs the Switch to examine the layer 2 part of Type each packet header IP instructs the Switch to examine the IP address in each frame s header Packet Content Mask instructs the Switch to examine the packet header Priority 0 7 Select this option to instruct the Switch to use the 802 1p priority value entered in the adjacent field for packets that meet the criteria A number between 0 the lowest priority and 7 the highest priority can be entered Replace Dscp 0 63 Select this option to instruct the Switch to replace the DSCP value in a packet that meets the selected criteria with the value entered in the adjacent field Allows the entry of a name for a previously configured VLAN SourceIP Source IP Address Enter an IP Address mask for the source IP address Destination IP Destination IP Address Enter an IP Address mask for the destination IP address 97 Faro I AL A do N Lala d dw Ni ar NCT FE ThlaOFnar Il r NOIA Ve fal Ina f 1 931 f I 1 ICI Iei a DV ic f
91. bel Ali 971 4 883 4394 amp Dubai 971 4 335 2464 E MAIL dlinkme dlink me com amp support dlink me com D Link Europe United Kingdom Ltd 4th Floor Merit House Edgware Road Colindale London NWO 5AB United Kingdom TEL 44 020 8731 5555 SALES 44 020 8731 5550 FAX 44 020 8731 5511 SALES 44 020 8731 5551 BBS 44 0 181 235 5511 URL www dlink co uk E MAIL info dlink co uk D Link U S A 17595 Mt Hermmann Fountain Valley CA 92708 4160 USA TEL 1 949 788 0805 FAX 1 949 753 7033 INFO 1 800 326 1688 URL www dlink com E MAIL tech dlink com amp support dlink com 187 Warranty and Registration for all Countries and Regions Except USA Wichtige Sicherheitshinweise Bitte lesen Sie sich diese Hinweise sorgf ltig durch 2 Heben Sie diese Anleitung f r den sp tern Gebrauch auf 3 Vor jedem Reinigen ist das Ger t vom Stromnetz zu trennen Vervenden Sie keine Fl ssig oder Aerosolreiniger Am besten dient ein angefeuchtetes Tuch zur Reinigung 4 Um eine Besch digung des Ger tes zu vermeiden sollten Sie nur Zubeh rteile verwenden die vom Hersteller zugelassen sind 5 Das Ger t is vor Feuchtigkeit zu sch tzen 6 Beider Aufstellung des Ger tes ist auf sichern Stand zu achten Ein Kippen oder Fallen k nnte Verletzungen hervorrufen Verwenden Sie nur sichere Standorte und beachten Sie die Aufstellhinweise des Herstellers 7 Die Bel ftungs ffnungen dienen zur Luftzirkulation die das Ger t vor b
92. bility the port will be chosen as the Root Port Migration No Select Yes or No Choosing Yes will enable the port to migrate from 802 1d STP status to 802 1w RSTP status RSTP can coexist with standard STP however the benefits of RSTP are not realized on a port where an 802 1d network connects to an 802 1w enabled network Migration should be enabled yes on ports connected to network stations or segments that will be upgraded to 802 1w RSTP on all or some portion of the segment Edge No Select Yes or No Choosing Yes designates the port as an edge port Edge ports cannot create loops however an edge port can lose edge port status if a topology change creates a potential for a loop An edge port normally should not receive BPDU packets If a BPDU packet is received it automatically loses edge port status No indicates the port does not have edge port status P2P No Select Yes or No Choosing Yes indicates a point to point p2p shared link These are similar to edge ports however they are restricted in that a p2p port must operate in full duplex Like edge ports p2p ports transition to a forwarding state rapidly thus benefiting from RSTP Click Apply to implement the changes made 56 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Forwarding Filtering Unicast Forwarding Open the Forwarding Filtering folder in the Configuration menu and click on the Unicast Forwarding link This will open the Setup Static
93. ble as shown below 57 DES 3550 Layer 2 Fast Ethernet Switch User s Guide tatic Multicast Forwarding Tabl Multicast MAC Address 0 00 00 00 00 00 eeo os oe poe p doh jiz as jis hs je hr he ho jo fei fez fa ia as fe fe fe v de de fe fe fe fe fe fe fe fe fe ote fe fe fe fe fe fe fe fe ee MM ME ME NEM ME BE ME NE NM MEE EMEN MEM MM NE AU Ogg gg GGGgGJAgJggcgggggggdgg3 fe fe v v fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe v v LEN SN MN MEM MEM JE MEM ME MEM SE MM ME MM NE MEM MEM NE MEM MM MEM MM MEM MEM UM Show All Multicast Forwarding Entries Figure 6 15 Setup Static Multicast Forwarding Table The following parameters can be set Parameter Description The VLAN ID of the VLAN the corresponding MAC address belongs to Multicast MAC The MAC address of the static source of multicast packets This must be a Address multicast MAC address Allows the selection of ports that will be members of the static multicast group and ports that are either forbidden from joining dynamically or that can join the multicast group dynamically using GMRP The options are Port Settings o l T l None no restrictions on the port dynamically joining the multicast group When None is chosen the port will not be a member of the Static Multicast Group Egress the port is a static member of the multicast group Click Apply to implement the changes made To delete an entry in the Sta
94. button will let user input the new password to upgrade this web management to Admin level If the password is incorrect for 3 times web management will stay at the login page and wait for user to login again Enable Admin Figure 7 18 Enable Admin Screen When this screen appears click the Enable Admin button revealing a window for the user to enter authentication password username as seen below A successful entry will promote the user to Administrator level privileges on the Switch Enter Network Password qe Please type pour user name and password Site 10 53 13 126 Realm DES 3526 User Name Password Save this password in your password list Cancel Figure 7 19 Enter Network Password window SNMP SNMP Settings Simple Network Management Protocol SNMP is an OSI Layer 7 Application Layer designed specifically for managing and monitoring network devices SNMP enables network management stations to read and modify the settings of gateways routers switches and other network devices Use SNMP to configure system features for proper operation monitor performance and detect potential problems in the switch switch group or network Managed devices that support SNMP include software referred to as an agent which runs locally on the device A defined set of variables managed objects is maintained by the SNMP agent and used to manage the device These objects are defined in a Management Info
95. c Segmentation Table window 83 DES 3550 Layer 2 Fast Ethernet Switch User s Guide This page allows you to determine which port on a given switch will be allowed to forward packets to other ports on that switch The user may set the following parameters Parameter Description Check the corresponding boxes for the port s you wish to transmit packets Forward Portlist Check the boxes to select which of the ports on the selected switch will be able to forward packets These are the ports that will be allowed to receive packets from the port specified above Clicking the Apply button will enter the combination of transmitting port and allowed receiving ports into the Switch s Traffic Segmentation Table MAC Notification MAC Notification is used to monitor MAC addresses learned and entered into the forwarding database Global Settings To globally set MAC notification on the Switch open the following screen by opening the MAC Notification folder and clicking the Global Settings link MAC Notification Global Settings Disabled History size Figure 6 33 MAC Notification Global Setting window The following parameters may be modified Parameter Description Enable or disable MAC notification globally on the Switch Interval sec The time in seconds between notifications History size The maximum number of entries listed in the history log used for notification Up to 500 entries can be specified Port Sett
96. cators will momentarily blink This blinking of the LED indicators represents a reset of the system Power Failure As a precaution in the event of a power failure unplug the Switch When power is resumed plug the Switch back in 22 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Connecting The Switch Switch To End Node Switch To Hub or Switch Connecting To Network Backbone or Server 7 NOTE All 48 high performance NWay Ethernet ports can support both MDI Il and MDI X connections Switch To End Node End nodes include PCs outfitted with a 10 100 or 1000 Mbps RJ 45 Ethernet Fast Ethernet Network Interface Card NIC and most routers An end node can be connected to the Switch via a twisted pair Category 3 4 or 5 UTP STP cable The end node should be connected to any of the ports of the Switch 17 18 19 20 21 22 23 24 25 26 27 28 29 30 3 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 DES 3550 Power M Console LI RPS M YO Y Y Y Y S CSS e D Link RJ 45 Connector Figure 3 1 Switch connected to an end node The Link Act LEDs for each UTP port will light green or amber when the link is valid A blinking LED indicates packet activity on that port Switch to Hub or Switch These connections can be accomplished in a number of ways using a normal cable e A IOBASE T hub or switch can be connected to the Switch via a twisted pair Category 3 4 or 5 UTP STP cable e A IOOBASE TX hub or switch can be
97. cess Profile Table port mirroring and configuring the Spanning Tree Section 7 Management A discussion of the security features of the Switch including Security IP User Accounts Access Authentication Control and SNMP Section 8 Monitoring Features graphs and screens used in monitoring features and packets on the Switch Section 9 Maintenance Features information on Switch utility functions including TFTP Services Switch History Ping Test Save Changes and Rebooting Services Section 10 Single IP Management Discussion on the Single IP Management function of the Switch including functions and features of the Java based user interface and the utilities of the SIM function Appendix A Technical Specifications The technical specifications of the DES 3550 Appendix B Cables and Connectors Describes the RJ 45 receptacle connector straight through and crossover cables and standard pin assignments Appendix C Cable Lengths Information on cable types and maximum distances Glossary Lists definitions for terms and acronyms used in this document Intended Readers The DES 3550 Manual contains information for setup and management of the Switch This manual is intended for network managers familiar with network management concepts and terminology Typographical Conventions viii DES 3550 Layer 2 Fast Ethernet Switch User s Guide In a command line square brackets indicate an optional entry For example co
98. ch s configuration parameters to their factory defaults without saving these default values to the Switch s non volatile RAM If the Switch is reset with this option enabled and Save Changes is not executed the Switch will return to the last saved configuration when rebooted Reset Config switch will be reset io factory defaults Are you sure vou want to proceed with a reset If yes click the Apply bution Apply Figure 9 12 Reset Config window Logout Use the Logout page to logout of the Switch s Web based management agent by clicking on the Log Out button Logout Web Setup Are you sure you want to log out of Web Configuration program If ves click the Apply bution and return io the maim page Apply Figure 9 13 Logout window 162 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Single IP Management Single IP Management SIM Overview Topology Firmware Upgrade Configuration Backup Restore Single IP Management SIM Overview Simply put Single IP Management is a concept that will stack switches together over Ethernet instead of using stacking ports or modules There are some advantages in 1mplementing the Single IP Management feature 1 SIM can simplify management of small workgroups or wiring closets while scaling the network to handle increased bandwidth demand 2 SIM can reduce the number of IP address needed in your network 3 SIM can eliminate any specialized cables for s
99. ch increases capacity and decreases network loading by making it possible for a local area network to be divided into different segments which are not competing with each other for network transmission capacity and therefore decrease the load on each segment The Switch acts as a high speed selective bridge between the individual segments Traffic that needs to go from one segment to another from one port to another is automatically forwarded by the Switch without interfering with any other segments ports This allows the total network capacity to be multiplied while still maintaining the same network cabling and adapter cards For Fast Ethernet or Gigabit Ethernet networks a switch is an effective way of eliminating problems of chaining hubs beyond the two repeater limit A switch can be used to split parts of the network into different collision domains for example making it possible to expand your Fast Ethernet network beyond the 205 meter network diameter limit for IOOBASE TX networks Switches supporting both traditional 1I0Mbps Ethernet and 100Mbps Fast Ethernet are also ideal for bridging between existing 10Mbps networks and new 100Mbps networks Switching LAN technology 1s a marked improvement over the previous generation of network bridges which were characterized by higher latencies Routers have also been used to segment local area networks but the cost of a router and the setup and maintenance required make routers relative
100. computing resources such as PCs printers servers covering a relatively small geographic area usually not larger than a floor or building Characterized by high data rates and low error rates latency The delay between the time a device receives a packet and the time the packet 1s forwarded out of the destination port line speed See baud rate main port The port in a resilient link that carries data traffic in normal operating conditions MDI Medium Dependent Interface An Ethernet port connection where the transmitter of one device is connected to the receiver of another device MDI X Medium Dependent Interface Cross over An Ethernet port connection where the internal transmit and receive lines are crossed MIB Management Information Base Stores a device s management characteristics and parameters MIBs are used by the Simple Network Management Protocol SNMP to contain attributes of their managed systems The Switch contains its own internal MIB multicast Single packets copied to a specific subset of network addresses These addresses are specified in the destination address field of the packet protocol A set of rules for communication between devices on a network The rules dictate format timing sequencing and error control resilient link A pair of ports that can be configured so that one will take over data transmission should the other fail See also main port and standby port RJ 45 Standard 8 wire connectors for I
101. corresponding Switch Model Name Displays the full Model Name of the corresponding Switch 166 DES 3550 Layer 2 Fast Ethernet Switch User s Guide To view the Topology Map click the View menu in the toolbar and then Topology which will produce the following screen The Topology View will refresh itself periodically 20 seconds by default l Topology Cluster 1 defaultjaa 00 01 defaultdd O0 04 tdefault 35 25 8543 reefault 35 26 00 d efaultidira ir Ri Cau 35 26 Figure 10 5 Topology view This screen will display how the devices within the Single IP Management Group are connected to other groups and devices Possible icons in this screen are as follows 167 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Non SIM devices Tool Tips In the Topology view window the mouse plays an important role in configuration and in viewing device information Setting the mouse cursor over a specific device in the topology window tool tip will display the same information about a specific device as the Tree View does See the window below for an example 168 DES 3550 Layer 2 Fast Ethernet Switch User s Guide defaultiaa 00 01 ti a ifo 2 PB 36 26 02 default 35 Lr 2 e dlt 26 50 85 A ieEfault35 26 00 pas default 35 4 i d efaull asd i f atge DO 35 26 defaultdd 00 04 Figure 10 6 Device Information Utilizing the Tool Tip Setting the mouse cursor over a li
102. ct to the terms and conditions set forth herein D Link Systems Inc D Link provides this Limited warranty for its product only to the person or entity that originally purchased the product from D Link or its authorized reseller or distributor and Products purchased and delivered within the fifty states of the United States the District of Columbia U S Possessions or Protectorates U S Military Installations addresses with an APO or FPO 189 Limited Warranty D Link warrants that the hardware portion of the D Link products described below will be free from material defects in workmanship and materials from the date of original retail purchase of the product for the period set forth below applicable to the product type Warranty Period except as otherwise stated herein Limited Lifetime Warranty for the Product s is defined as follows Hardware for as long as the original customer end user owns the product or five years after product discontinuance whichever occurs first excluding power supplies and fans Power Supplies and Fans Three 3 Year Spare parts and spare kits Ninety 90 days D Link s sole obligation shall be to repair or replace the defective Hardware during the Warranty Period at no charge to the original owner or to refund at D Link s sole discretion Such repair or replacement will be rendered by D Link at an Authorized D Link Service Office The replacement Hardware need not be new or ha
103. ctrician if you are uncertain that suitable grounding is available CAUTION The system chassis must be positively grounded to the rack cabinet frame Do not attempt to connect power to the system until grounding cables are connected Completed power and safety ground wiring must be inspected by a qualified electrical inspector An energy hazard will exist if the safety ground cable is omitted or disconnected Protecting Against Electrostatic Discharge Static electricity can harm delicate components inside your system To prevent static damage discharge static electricity from your body before you touch any of the electronic components such as the microprocessor You can do so by periodically touching an unpainted metal surface on the chassis You can also take the following steps to prevent damage from electrostatic discharge ESD 1 When unpacking a static sensitive component from its shipping carton do not remove the component from the antistatic packing material until you are ready to install the component in your system Just before unwrapping the antistatic packaging be sure to discharge static electricity from your body 2 When transporting a sensitive component first place it in an antistatic container or packaging 3 Handle all sensitive components in a static safe area If possible use antistatic floor pads workbench pads and an antistatic grounding strap xli DES 3550 Layer 2 Fast Ethernet Switch User s Guide
104. cts is maintained by the SNMP agent and used to manage the device These objects are defined in a Management Information Base MIB which provides a standard presentation of the information controlled by the on board SNMP agent SNMP defines both the format of the MIB specifications and the protocol used to access this information over the network The DES 3550 supports SNMP versions 1 2c and 3 You can specify which version of SNMP you want to use to monitor and control the Switch The three versions of SNMP vary in the level of security provided between the management station and the network device In SNMP v l and v 2 user authentication is accomplished using community strings which function like passwords The remote user SNMP application and the Switch SNMP must use the same community string SNMP packets from any station that has not been authenticated are ignored dropped The default community strings for the Switch used for SNMP v 1 and v 2 management access are public Allows authorized management stations to retrieve MIB objects private Allows authorized management stations to retrieve and modify MIB objects SNMP V3 uses a more sophisticated authentication process that 1s separated into two parts The first part is to maintain a list of users and their attributes that are allowed to act as SNMP managers The second part describes what each user on that list can do as an SNMP manager The Switch allows groups of user
105. d Initial installation installation and removal of the product for repair and shipping costs Operational adjustments covered in the operating manual for the product and normal maintenance Damage that occurs in shipment due to act of God failures due to power surge and cosmetic damage Any hardware software firmware or other products or services provided by anyone other than D Link Products that have been purchased from inventory clearance or liquidation sales or other sales in which D Link the sellers or the liquidators expressly disclaim their warranty obligation pertaining to the product Repair by anyone other than D Link or an Authorized D Link Service Office will void this Warranty Disclaimer of Other Warranties EXCEPT FOR THE LIMITED WARRANTY SPECIFIED HEREIN THE PRODUCT IS PROVIDED AS IS WITHOUT ANY WARRANTY OF ANY KIND WHATSOEVER INCLUDING WITHOUT LIMITATION ANY WARRANTY OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT IF ANY IMPLIED WARRANTY CANNOT BE DISCLAIMED IN ANY TERRITORY WHERE A PRODUCT IS SOLD THE DURATION OF SUCH IMPLIED WARRANTY SHALL BE LIMITED TO NINETY 90 DAYS EXCEPT AS EXPRESSLY COVERED UNDER THE LIMITED WARRANTY PROVIDED HEREIN THE 190 ENTIRE RISK AS TO THE QUALITY SELECTION AND PERFORMANCE OF THE PRODUCT IS WITH THE PURCHASER OF THE PRODUCT Limitation of Liability TO THE MAXIMUM EXTENT PERMITTED BY LAW D LINK IS NOT LIABLE UNDER ANY CONTRACT NEGLIGENCE STRICT LIAB
106. d links must be contiguous they must have sequential port numbers except the two optional Gigabit ports which can only belong to a single link aggregation group All of the ports in the group must be members of the same VLAN and their STP status static multicast traffic control traffic segmentation and 802 1p default priority configurations must be identical Port locking port mirroring and 802 1 X must not be enabled on the trunk group Further the aggregated links must all be of the same speed and should be configured as full duplex The Master Port of the group is to be configured by the user and all configuration options including the VLAN configuration that can be applied to the Master Port are applied to the entire link aggregation group Load balancing is automatically applied to the ports in the aggregated group and a link failure within the group causes the network traffic to be directed to the remaining links in the group The Spanning Tree Protocol will treat a link aggregation group as a single link on the switch level On the port level the STP will use the port parameters of the Master Port in the calculation of port cost and in determining the state of the link aggregation group If two redundant link aggregation groups are configured on the Switch STP will block one entire group in the same way STP will block a single port that has a redundant link To configure port trunking click on the Link Aggregation hyperlink in
107. d no Port ITTUNK GIOUDS Rs 86 O E A qm EU AE RS NN 89 JACCBESS PROEIEE 1 A BIC B sas unica AN E E E EAA 91 CONFIGURING THE ACCESS PROFILE TABLE ia iio 91 SYSTEM LOG SERVER ts A A A uut ue a i etc dtu 103 PAB ACCESS ENTIMEY S02 a a a DR EC M N 104 Understanding 802 1x Port based Network Access Control eee essseeeeeeeen nennen nens 104 CORA CUCA UNEN OLOT d ae tto iab P NA d ae pc EVI d pee oe EP EUH RU Ea 106 DOVES GOONS CHILO S aroa RE Re et et AAA ime da ede Note vua no o da at 109 T HOSP OI usaron O pd OLEO eit itor 111 Rean heni ed E LO aaa 112 RAIM US SCIVO TURN 115 MANAGEMENT AAA Pe LO 115 5 GIS d ib al ep mS 115 CTS CV A CCOURMIS a E 115 ACCES SAUTHENTICA TON CONTRO Esad di 117 FOY E DIA AAA O A IR UTOR A 118 Application sc Authentication SeN 98 audies oe yer ute aa 119 Authentication Server Grolp3Settilig s saco o ai tvi etl as 119 AUenttCaltonseryek HOS eso bte sto ted m tede pud a I UM 120 Eom Metlod EIE se itta mre TE pcena uetus cu suu a dte LE CE E CLE 122 ENABLE Menon TASES eta ais 124 Local L nabl eT ASS WO Sd 126 MTU A A stood ea LUC tes 126 SINMP S cde dete dia 127 SINNIPSSEPEINGS aieiaa ne A ttd uii sed EO E dE dd 127 SANNE VEN TABLE loe a di as 131 SNMP GROUP TABEE S credit 132 SNMP COMMUNITY LABEE CONFIGURATION und TA Aia 134 SNMP HOST TABLE nisen A M M E 135 SNMPENCINE TD e e de de ato 136 MONITORING cintia 137 FORT UTILIZATION runa E E EO N dada 137 I UN BRE ON or ER 138 PACKET P
108. database on the Switch none Adding this parameter will require no authentication to access the Switch 123 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Enable Method Lists This window is used to set up Method Lists to promote users with normal level privileges to Administrator level privileges using authentication methods on the Switch Once a user acquires normal user level privileges on the Switch he or she must be authenticated by a method on the Switch to gain administrator privileges on the Switch which is defined by the Administrator A maximum of eight 8 Enable Method Lists can be implemented on the Switch one of which 1s a default Enable Method List This default Enable Method List cannot be deleted but can be configured The sequence of methods implemented in this command will affect the authentication result For example if a user enters a sequence of methods like TACACS XTACACS Local Enable the Switch will send an authentication request to the first TACACS host in the server group If no verification 1s found the Switch will send an authentication request to the second TACACS host in the server group and so on until the list is exhausted At that point the Switch will restart the same sequence with the following protocol listed XTACACS If no authentication takes place using the XTACACS list the Local Enable password set in the Switch is used to authenticate the user Successful authentication using
109. der and click on the Current Time Setting link revealing the following screen for the user to configure Current Time Status Current Time f days 20 27 18 Time Source System Clock Current Time SNTP Settings SMTP State Disabled HTP Primary Server etd TP Secondary Server SMTP Pall Interval in Seconds Current Time Set Current Time Figure 6 25 Time Settings Page The following parameters can be set or are displayed 73 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Parameter Description Displays the time when the Switch was initially started for this session Displays the time source for the system SNTP State Use this pull down menu to Enable or Disable SNTP SNTP Primary Server This is the IP address of the primary server the SNTP information will be taken from SNTP Secondary This is the IP address of the secondary server the SNTP information will be Server taken from SNTP Poll Interval in This is the interval in seconds between requests for updated SNTP Seconds information Enter the current year if you want to update the system clock Month Enter the current month if you would like to update the system clock Enter the current day if you would like to update the system clock Enter the current time in hours and minutes if you would like to update the Time in HH MM system clock Click Apply to implement your changes Time Zone and DST The following are screens used to configure
110. devices access to network resources by establishing criteria for each port on the Switch that a user or network device must meet before allowing that port to forward or receive frames IEEE 802 1x operation must be enabled on the Switch before it will function This is done using the 802 1x State window 802 1x settings can be configured before being enabled on the Switch Configure Authenticator To configure the 802 1X Authenticator Settings click PAE Access Entity gt Configure Authenticator 106 DES 3550 Layer 2 Fast Ethernet Switch User s Guide 802 1X Authenticator Settings Pori AdminCuDis OperCaDin Port Curl TsPeriodlQuietPeria Supp Timcoul Server M 1 both both 30 60 30 30 2 o auto 3600 n 2 both both auto 30 60 30 30 2 3600 no 3 both both auto 30 60 30 30 2 3600 no 4 both both auto 30 60 30 30 2 3600 no 5 both both auto 30 60 30 30 2 3600 no 6 both both auto 30 60 30 30 2 3600 no 7 both both auto 30 60 30 30 2 3600 no 8 both both auto 30 60 30 30 2 3600 no 9 both both auto 30 60 30 30 2 3600 no 10 both both auto 30 60 30 30 2 3600 no 11 both both auto 30 60 30 30 2 3600 no 12 both both auto 30 60 30 30 2 3600 no 13 both both auto 30 60 30 30 2 3600 no 14 both both auto 30 60 30 30 2 3600 no 15 both both auto 30 60 30 30 2 3600 no 16 both both auto 30 60 30 30 2 3600 no 17 both both auto 30 60 30 30 2 3600 no 1 both both auto 30 60 30 30 2 3600 no 19 both both auto 30 60 30 30 2 3600 no 20 both both auto 30 60
111. e s stands for seconds The default value is one second Record Number 200 Select number of times the Switch will be polled between 20 and 200 The default value is 20 Counts the number of bytes successfully sent from the port Packets 000 Counts the number of packets successfully sent on the port Show Hide Check whether or not to display Bytes and Packets Clicking this button clears all statistics counters on this window View Table Clicking this button instructs the Switch to display a table rather than a line graph View Line Chart Clicking this button instructs the Switch to display a line graph rather than a table 144 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Errors The Web Manager allows port error statistics compiled by the Switch s management agent to be viewed as either a line graph or a table Four windows are offered Received RX Click the Received RX link in the Error folder of the Monitoring menu to view the following graph of error packets received on the Switch View Table 1000 ann CrcError 200 LInderSize Fa Oversize BOO Fragment S00 400 200 Drop 200 100 Unitipacketiseci Time Interval Record Number 200 Show Hide v CrcError Iv UnderSize M OverSize v Fragment M Jabber W Drop Figure 8 8 Rx Error Analysis window line graph To view the Received Error Packets Table click the link View Table which will show the following table 145 DES 3550 Layer 2 Fa
112. e DES 3550 supports up to 6 port trunk groups with 2 to 8 ports in each group A potential bit rate of 8000 Mbps can be achieved 10 100Mbps Backbone Switch EDS 2626 10 100 Fast Ethernet Switch 100Mbps 100Mbps 100Mbps 10 100Mbps Hub 10 100Mbps Hub 10 100Mbps Hub 10Mbps 10Mbps 10Mbps 10Mbps 100Mbps 10Mbps 10Mbps 100Mbps dn anbab5 5bb5 Ca Exa Ca L d L d L d Ca Ea PC PC PC PC PC PC PC PC Figure 6 35 Example of Port Trunk Group The Switch treats all ports 1n a trunk group as a single port Data transmitted to a specific host destination address will always be transmitted over the same port in a trunk group This allows packets in a data stream to arrive in the same order they were sent 86 DES 3550 Layer 2 Fast Ethernet Switch User s Guide intended for the disconnected port will be load shared among the other fy l iy Note If any ports within the trunk group become disconnected packets L uplinked ports of the link aggregation group Link aggregation allows several ports to be grouped together and to act as a single link This gives a bandwidth that is a multiple of a single link s bandwidth Link aggregation is most commonly used to link a bandwidth intensive network device or devices such as a server to the backbone of a network The Switch allows the creation of up to 6 link aggregation groups each group consisting of 2 to 8 links ports The aggregate
113. e mode fiber module Category 5 UTP Cable 1000 Mbps 100 Mbps 10 Mbps Glossary 1000BASE LX A short laser wavelength on multimode fiber optic cable for a maximum length of 550 meters 1805 feet 1000BASE SX A long wavelength for a long haul fiber optic cable for a maximum length of 10 kilometers 32 808 feet 100BASE FX 100Mbps Ethernet implementation over fiber 100BASE TX 100Mbps Ethernet implementation over Category 5 and Type 1 Twisted Pair cabling 10BASE T The IEEE 802 3 specification for Ethernet over Unshielded Twisted Pair UTP cabling ageing The automatic removal of dynamic entries from the Switch Database which have timed out and are no longer valid 180 ATM Asynchronous Transfer Mode A connection oriented transmission protocol based on fixed length cells packets ATM is designed to carry a complete range of user traffic including voice data and video signals auto negotiation A feature on a port that allows it to advertise its capabilities for speed duplex and flow control When connected to an end station that also supports auto negotiation the link can self detect its optimum operating setup backbone port A port that does not learn device addresses and receives all frames with an unknown address Backbone ports are normally used to connect the Switch to the backbone of your network Note that backbone ports were formerly known as designated downlink ports backbone The part of a netwo
114. e problem CAUTION A CAUTION indicates a potential for property damage personal injury or death Safety Instructions Use the following safety guidelines to ensure your own personal safety and to help nrotect your system from potential damage Throughout this safety section the caution icon A 18 used to indicate cautions and precautions that you need to review and follow 1X DES 3550 Layer 2 Fast Ethernet Switch User s Guide A Safety Cautions To reduce the risk of bodily injury electrical shock fire and damage to the equipment observe the following precautions Observe and follow service markings Do not service any product except as explained in your system documentation Opening or removing covers that are marked with the triangular symbol with a lightning bolt may expose you to an electrical shock Only a trained service technician should service components inside these compartments If any of the following conditions occur unplug the product from the electrical outlet and replace the part or contact your trained service provider The power cable extension cable or plug is damaged An object has fallen into the product The product has been exposed to water The product has been dropped or damaged The product does not operate correctly when you follow the operating instructions e Keep your system away from radiators and heat sources Also do not block cooling vents e Do not spill fo
115. e the Switch to be configured for SIM Discovery Interval The user may set the discovery protocol interval in seconds that the Switch will send out discovery packets Returning information to a Commander Switch will include information about other switches connected to it Ex MS CaS The user may set the Discovery Interval from 30 to 90 seconds This parameter may be set for the time in seconds that the Switch will hold information sent to it from other switches utilizing the Discovery Interval The user may set the hold time from 100 to 300 seconds Click Apply to implement the settings changed After enabling the Switch to be a Commander Switch CS the Single IP Management folder will then contain three added links to aid the user in configuring SIM through the web including Topology Firmware Upgrade and Configuration Backup Restore 165 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Topology The Topology window will be used to configure and manage the Switch within the SIM group and requires Java script to function properly on your computer The following message should appear the first time the user clicks the Topology link in the Single IP Management folder It is necessary to setup your Java Runtime Environment to v1 4 to view the topology Click hereto link to the topology page and it will setup your Java Runtime Environment automatically Figure 10 3 Java window Clicking the here link will setup the Ja
116. ecified end users whose data transmissions warrant special consideration The Switch allows you to further tailor how priority tagged data packets are handled on your network Using queues to manage priority tagged data allows you to specify its relative priority to suit the needs of your network There may be circumstances where it would be advantageous to group two or more differently tagged packets into the same queue Generally it is recommended that the highest priority queue Queue 1 be reserved for data packets with a priority value of 7 Packets that have not been given any priority value are placed in Queue O and thus given the lowest priority for delivery DES 3550 Layer 2 Fast Ethernet Switch User s Guide A weighted round robin system is employed on the Switch to determine the rate at which the queues are emptied of packets The ratio used for clearing the queues 1s 4 1 This means that the highest priority queue Queue 1 will clear 4 packets for every 1 packet cleared from Queue 0 Remember the priority queue settings on the Switch are for all ports and all devices connected to the Switch will be affected This priority queuing system will be especially beneficial if your network employs switches with the capability of assigning priority tags VLANs A Virtual Local Area Network VLAN is a network topology configured according to a logical scheme rather than the physical layout VLANs can be used to combine any collection of LA
117. ection and allows Spanning Tree to be enabled on all ports and work normally The IEEE 802 1Q standard restricts the forwarding of untagged packets to the VLAN the receiving port is a member of The main characteristics of IEEE 802 1Q are as follows Assigns packets to VLANS by filtering Assumes the presence of a single global spanning tree Uses an explicit tagging scheme with one level tagging 802 1Q VLAN Packet Forwarding Packet forwarding decisions are made based upon the following three types of rules Ingress rules rules relevant to the classification of received frames belonging to a VLAN Forwarding rules between ports decides whether to filter or forward the packet Egress rules determines 1f the packet must be sent tagged or untagged 62 DES 3550 Layer 2 Fast Ethernet Switch User s Guide 802 1Q Packet Forwarding Packet Packet Receive Transmit Ingress Ingress Egress Rules Filtering Rules Forwarding l AA gt Process lt Filtering PVID to VID PA VLAN Table Port State Tagging or Untagging Figure 6 17 IEEE 802 1Q Packet Forwarding 802 1Q VLAN Tags The figure below shows the 802 1Q VLAN tag There are four additional octets inserted after the source MAC address Their presence is indicated by a value of 0x8100 in the EtherType field When a packet s EtherType field 1s equal to 0x8100 the packet carries the IEEE 802 1Q
118. ed from remote stations anywhere on the network through a standard browser such as Netscape Navigator Communicator or Microsoft Internet Explorer The browser acts as a universal access tool and can communicate directly with the Switch using the HTTP protocol The Web based management module and the Console program and Telnet are different ways to access the same internal switching software and configure it Thus all settings encountered in web based management are the same as those found in the console program Login to Web Manager To begin managing your Switch simply run the browser you have installed on your computer and point it to the IP address you have defined for the device The URL in the address bar should read something like http 123 123 123 123 where the numbers 123 represent the IP address of the Switch E In the page that opens click on the Login to make a setup button NOTE The Factory default IP address for the Switch is 10 90 90 90 to make a setup Figure 5 1 Login Button This opens the management module s user authentication window as seen below 34 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Enter Network Password ES x 9 Please type pour user name and password Site 100 53 13 126 Realm DES 3526 User Mame Password Save this password in your password list Cancel Leave both the User Name field and the Password field blank and click OK This wil
119. ed to D Link with all costs of mailing shipping insurance prepaid D Link shall never be responsible for any software firmware information or memory data of Purchaser contained in stored on or integrated with any product returned to D Link pursuant to this warranty Any package returned to D Link without an RMA number will be rejected and shipped back to Purchaser at Purchaser s expense and D Link reserves the right in such a case to levy a reasonable handling charge in addition mailing or shipping costs Software Warranty service for software products may be obtained by contacting a D Link office within the applicable warranty period A list of D Link offices is provided at the back of this manual together with a copy of the Registration Card If a Registration Card for the product in question has not been returned to a D Link office then a proof of purchase such as a copy of the dated purchase invoice must be provided when requesting warranty service The term purchase in this software warranty refers to the purchase transaction and resulting license to use such software D Link warrants that its software products will perform in substantial conformance with the applicable product documentation provided by D Link with such software product for a period of ninety 90 days from the date of purchase from D Link or its Authorized Reseller D Link warrants the magnetic media on which D Link provides its software product against failure duri
120. efine which MIB objects can be accessed by a remote SNMP manager To view the SNMP View Table open the SNMP V3 folder and click the SNMP View Table entry The following screen should appear 361211 pius zs Included Included Included Included Included Excluded Included Figure 7 23 SNMP View Table To delete an existing SNMP View Table entry click the in the Delete column corresponding to the entry you wish to delete To create a new entry click the Add button a separate menu will appear SNMP View Table Configuration View Name subtree OTD Included Figure 7 24 SNMP View Table Configuration The SNMP Group created with this table maps SNMP users identified in the SNMP User Table to the views created in the previous menu The following parameters can be set Parameter Description 131 DES 3550 Layer 2 Fast Ethernet Switch User s Guide View Name Type an alphanumeric string of up to 32 characters This is used to identify the new SNMP view being created Subtree OID Type the Object Identifier OID Subtree for the view The OID identifies an object tree MIB tree that will be included or excluded from access by an SNMP manager View Type Select Included to include this object in the list of objects that an SNMP manager can access Select Excluded to exclude this object from the list of objects that an SNMP manager can access To imp
121. er The user may set a time between 1 and 255 seconds The default setting is 30 seconds User Attempts 1 255 This command will configure the maximum number of times the 118 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Switch will accept authentication attempts Users failing to be authenticated after the set amount of attempts will be denied access to the Switch and will be locked out of further authentication attempts Command line interface users will have to wait 60 seconds before another authentication attempt Telnet and web users will be disconnected from the Switch The user may set the number of attempts from 1 to 255 The default setting is 3 Click Apply to implement changes made Application s Authentication Settings This window is used to configure switch configuration applications console telnet web for login at the user level and at the administration level Enable Admin utilizing a previously configured method list Application s authentication settings Login Method List Enable Method List default default default default y default default Figure 7 6 Application s Authentication Settings The following parameters can be set Parameter Description Application Lists the configuration applications on the Switch The user may configure the Login Method List and Enable Method List for authentication for users utilizing the Console Command Line Interface applicati
122. er of up to 64 Megabytes e Supports Port based VLAN Groups e Port Trunking with flexible load distribution and fail over function e Supports IGMP Snooping e Supports SNMP e Supports Port Mirroring e MIB support for RFC1213 MIB II RFC1493 Bridge RFC1757 RMON RFC1643 Ether like MIB RFC2233 Interface MIB Private MIB RFC2674 for 802 1p IEEE 802 1x MIB e RS 232 DCE console port for Switch management e Provides parallel LED display for port status such as link act speed etc Ports e Forty eight 48 high performance MDI X MDI II ports for connecting to end stations servers hubs and other networking devices e All UTP ports can auto negotiate between 10Mbps and 100Mbps half duplex and full duplex and feature flow control e Two IO00BASE T Mini GBIC combo ports for connecting to another switch server or network backbone e RS 232 DCE Diagnostic port console port for setting up and managing the Switch via a connection to a console terminal or PC using a terminal emulation program Important Note For customers interested in D View D Link Corporation s proprietary SNMP management software go to the D Link Website www dlink com cn and download the software and manual 16 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Front Panel Components The front panel of the Switch consists of LED indicators for power and for each 10 100 Mbps twisted pair ports and two 1000BASE T Mini GBIC ports
123. erators such as motors vibration dust and direct exposure to sunlight 20 DES 3550 Layer 2 Fast Ethernet Switch User s Guide e When installing the Switch on a level surface attach the rubber feet to the bottom of the device The rubber feet cushion the Switch protect the casing from scratches and prevent it from scratching other surfaces Installing the Switch Without the Rack When installing the Switch on a desktop or shelf the rubber feet included with the Switch should first be attached Attach these cushioning feet on the bottom at each corner of the device Allow enough ventilation space between the Switch and any other objects in the vicinity 1 Rubber Feet 4 2 Figure 2 1 Prepare Switch for installation on a desktop or shelf Installing the Switch in a Rack The Switch can be mounted in a standard 19 rack Use the following diagrams to guide you Figure 2 2 Fasten mounting brackets to Switch 21 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Fasten the mounting brackets to the Switch using the screws provided With the brackets attached securely you can mount the Switch in a standard rack as shown in Figure 2 3 below Mounting the Switch in a standard 19 rack Figure 2 3 Installing Switch in a rack Power On Plug one end of the AC power cord into the power connector of the Switch and the other end into the local power source outlet After the Switch is powered on the LED indi
124. erhitzung sch tzt Sorgen Sie daf r da diese ffnungen nicht abgedeckt werden 8 Beachten Sie beim Anschluf an das Stromnetz die AnschlufSwerte 9 Die Netzanschluf steckdose mu aus Gr nden der elektrischen Sicherheit einen Schutzleiterkontakt haben 10 Verlegen Sie die Netzanschlufleitung so daf niemand dar ber fallen kann Es sollete auch nichts auf der Leitung abgestellt werden 11 Alle Hinweise und Warnungen die sich am Ger ten befinden sind zu beachten 12 Wird das Ger t ber einen l ngeren Zeitraum nicht benutzt sollten Sie es vom Stromnetz trennen Somit wird im Falle einer berspannung eine Besch digung vermieden 13 Durch die L ftungs ffnungen d rfen niemals Gegenst nde oder Fl ssigkeiten in das Ger t gelangen Dies k nnte einen Brand bzw Elektrischen Schlag ausl sen 14 Offnen Sie niemals das Ger t Das Ger t darf aus Gr nden der elektrischen Sicherheit nur von authorisiertem Servicepersonal ge ffnet werden 15 Wenn folgende Situationen auftreten ist das Ger t vom Stromnetz zu trennen und von einer qualifizierten Servicestelle zu berpr fen a Netzkabel oder Netzstecker sint besch digt b Fl ssigkeit ist in das Ger t eingedrungen G Das Ger t war Feuchtigkeit ausgesetzt d Wenn das Ger t nicht der Bedienungsanleitung ensprechend funktioniert oder Sie mit Hilfe dieser Anleitung keine Verbesserung erzielen e Das Ger t ist gefallen und oder das Geh use ist besch digt f Wen
125. ett EE 43 PORT MIRRORING ouire naien 45 PORTDESCRIPTION ia O 46 A O 48 TEMPRANA 48 AUC RKO L OTTS Hm P o 49 SPANNING IREE enmena nna tito i E E E O E T E E T A 51 SOIW RUPA S A ctu ui AA A A 51 LEPE ANS aaa iio 52 NERO SENS o dissi aisi AAA tho M vat ulta o AN 54 FORWARDING FILTERING e oett autre Dope E N Id useage 57 UMCA F OV WATS Si esce E ent adds A LL E IT DU Static MultiCast OF arnalif Sssostedacdicuivme t on ER ib 57 Mulhed st PO FIU OEI O set AA NAS 58 MEAN esea E M 60 Understaudite TEE 502 JTDUPTIOEUEY ia 60 VLAN m iS 61 HEES AOV AN quu um meti ote EDU MM D E ON M M LI tM Mg ie DU 61 POHDOSCQ V LAN SN A A hastae esp oat oes 67 YI IIT ed VEAN ENT da AAA A R M 67 TOKE VLAN TIO P VID etas TI m Ie i ont tI pias 70 PORT BANDWIDTH aeii AS A dias R OPEM E 71 SNTE SETTINGS o SSE A ase 73 Current Home Se aaa 73 TAC AO ET 74 A RR RR O 78 Understand np OS dd A AS 78 VENTE CONO A ibd d DP C 79 ARS NN t Ea it itn idest RR 79 OU IS CERO AA ONES 1 E IA A madida fme edu utu II utenti cd auo p strom cd eive eet ire ed qai ces 61 TRAFFIC SEGMENTATION ciet A A A eese e aM RU EMI peus 82 NACINOTIPICATIO Noodle 84 LODGE SCUIN OS series TT Decem 64 LAS MAA UR pete aate CUA tnd VR QU RE MN dnd d e UE nbn Qu dp a S PORTER REO 54 IJACP aded E aca el des E eM CENE 86 Understan
126. f IN f i ji f f i i CALIL E Li Pit iw lh AVV Tt P q Ai Dscp 0 63 This field allows the user to enter a Dscp value in the space provided which will instruct the Switch to examine the DiffServ Code part of each packet header and use this as the or part of the criterion for forwarding The user may choose a value between 0 and 63 Protocol This field allows the user to modify the protocol used to configure the Access Rule Table depending on which protocol the user has chosen in the Access Profile Table In the example above IGMP is the protocol chosen and therefore the user may modify the IGMP settings for this access profile To view the settings of a previously correctly configured rule click in the Access Rule Table to view the following screen Access Rule Display Figure 6 46 Access Rule Display window IP To configure the Access Rule for Ethernet open the Access Profile Table figure 6 40 and click Modify for an Ethernet entry This will open the following screen Access Rule Table CNA aces Diy d 4 Perrmut Ethernet el View Figure 6 47 Access Rule Table A To remove a previously created rule select it and click the 4 button To add a new Access Rule click the Add button 98 LA at 1 arna Q A tanh lle e ria qa J ir a DES 3550 Layer 2 Fast Ethernet Switch User s Guide Access Rule Configuration Permit C Deny E Ethernet
127. f ports specified above Filter Unregistered Groups instructs the Switch to filter any multicast packets whose destination is an unregistered multicast group residing within the range of ports specified above Click Apply to implement the changes made VLANs Understanding IEEE 802 1p Priority Priority tagging is a function defined by the IEEE 802 1p standard designed to provide a means of managing traffic on a network where many different types of data may be transmitted simultaneously It 1s intended to alleviate problems associated with the delivery of time critical data over congested networks The quality of applications that are dependent on such time critical data such as video conferencing can be severely and adversely affected by even very small delays in transmission Network devices that are in compliance with the IEEE 802 1p standard have the ability to recognize the priority level of data packets These devices can also assign a priority label or tag to packets Compliant devices can also strip priority tags from packets This priority tag determines the packet s degree of expeditiousness and determines the queue to which it will be assigned Priority tags are given values from 0 to 7 with O being assigned to the lowest priority data and 7 assigned to the highest The highest priority tag 7 is generally only used for data associated with video or audio applications which are sensitive to even slight delays or for data from sp
128. f privileges The SNMP version may also be set for a listed group of SNMP managers Thus you may create a group of SNMP managers that are allowed to view read only information or receive traps using SNMP v 1 while assigning a higher level of security to another group granting read write privileges using SNMP v 3 Using SNMP v 3 individual users or groups of SNMP managers can be allowed to perform or be restricted from performing specific SNMP management functions The functions allowed or restricted are defined using the Object Identifier OID associated with a specific MIB An additional layer of security 1s available for SNMP v 3 in that SNMP messages may be encrypted Traps Traps are messages that alert network personnel of events that occur on the Switch The events can be as serious as a reboot someone accidentally turned OFF the Switch or less serious like a port status change The Switch generates traps and sends them to the trap recipient or network manager Typical traps include trap messages for Authentication Failure Topology Change and Broadcast Multicast Storm MIBs Management and counter information are stored by the Switch in the Management Information Base MIB The Switch uses the standard MIB II Management Information Base module Consequently values for MIB objects can be retrieved from any SNMP based network management software In addition to the standard MIB II the Switch also supports its own proprietary enterp
129. f the corresponding Switch Click Close to close the Property window Menu Bar The Single IP Management window contains a menu bar for device configurations as seen below Figure 10 17 Menu Bar of the Topology View The five menus on the menu bar are as follows File Print Setup Will view the image to be printed Print Topology Will print the topology map Preference Will set display properties such as polling interval and the views to open at SIM startup x Interval 10 300 20 Show All O Show Member only OK Cancel Java Applet Window Group Add to group Add a Candidate to a group Clicking this option will reveal the following screen for the user to enter a password for authentication from the Candidate Switch before being added to the SIM group Click OK to enter the password or Cancel to exit the window 174 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Input password EB x Password OK Cancel Java Applet Window Figure 10 18 Input password window Remove from Group Remove an MS from the group Device Configure Will open the web manager for the specific device View Refresh Update the views with the latest status Topology Display the Topology view Help About Will display the SIM information including the current SIM version Single IP Management 1 0 04 Copyright c 2003 Alphanetworks corporation Release Date 2004 0371 EN
130. fig ipif System ipaddress 10 53 13 175 8 Success DES 3550 48 Figure 4 5 Assigning the Switch an IP Address In the above example the Switch was assigned an IP address of 10 53 13 175 with a subnet mask of 255 0 0 0 The system message Success indicates that the command was executed successfully The Switch can now be configured and managed via Telnet and the CLI or via the Web based management Connecting Devices to the Switch After you assign IP addresses to the Switch you can connect devices to the Switch To connect a device to an SFP transceiver port 1 Use your cabling requirements to select an appropriate SFP transceiver type 2 Insert the SFP transceiver sold separately into the SFP transceiver slot 3 Use the appropriate network cabling to connect a device to the connectors on the SFP transceiver NOTICE When the SFP transceiver acquires a link the associated integrated 10 100 1000BASE T port is disabled 32 DES 3550 Layer 2 Fast Ethernet Switch User s Guide 33 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Introduction to Web based Switch Configuration Introduction Login To Web manager Web Based User Interface Basic Setup Reboot Basic Switch Setup Network Management Switch Utilities Network Monitoring IGMP Snooping Status Introduction All software functions of the DES 3350 can be managed configured and monitored via the embedded web based HTML interface The Switch can be manag
131. fy a source port mask and or a destination port mask The user may also identify which flag bits to deny Flag bits are parts of a packet that determine what to do with the packet The user may deny packets by denying certain flag bits within the packets by checking the boxes corresponding to the flag bits of Protocol the TCP field The user may choose between urg urgent ack acknowledgement psh push rst reset syn synchronize and fin finish src port mask Specify a TCP port mask for the source port in hex form hex Ox0 Oxffff which you wish to deny dest port mask Specify a TCP port mask for the destination port in hex form hex 0x0 Oxffff which you wish to deny Select UDP to use the UDP port number contained in an incoming packet as the forwarding criterion Selecting UDP requires that you specify a source port mask and or a destination port mask src port mask Specify a TCP port mask for the source port in hex form hex OxO Oxffff dest port mask Specify a TCP port mask for the destination port in hex form hex OxO Oxffff protocol id user value Enter a value defining the protocol id in the packet header you wish to mask opecify up to 5 Layer 4 port masks for the destination port in hex form hex Ox0 Oxffffffff The user may set the Access Profile Table on a per port basis by entering an entry in this field Entering all will denote all ports on the Switch The page shown below is the Packet
132. ging and Untagging Every port on an 802 1Q compliant switch can be configured as tagging or untagging Ports with tagging enabled will put the VID number priority and other VLAN information into the header of all packets that flow into and out of it If a packet has previously been tagged the port will not alter the packet thus keeping the VLAN information intact The VLAN information in the tag can then be used by other 802 1Q compliant devices on the network to make packet forwarding decisions Ports with untagging enabled will strip the 02 10 tag from all packets that flow into and out of those ports If the packet does not have an 802 1Q VLAN tag the port will not alter the packet Thus all packets received by and forwarded by an untagging port will have no 802 1Q VLAN information Remember that the PVID is only used internally within the Switch Untagging is used to send packets from an 802 1Q compliant network device to a non compliant network device 65 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Ingress Filtering A port on a switch where packets are flowing into the switch and VLAN decisions must be made is referred to as an ingress port If ingress filtering 1s enabled for a port the switch will examine the VLAN information in the packet header if present and decide whether or not to forward the packet If the packet is tagged with VLAN information the ingress port will first determine if the ingress port itse
133. go to the D Link website NOTICE Any changes made to the Switch configuration during the current session must be saved in the Save Changes web menu explained below or use the command line interface CLI command save Web Pages When you connect to the management mode of the Switch with a Web browser a login screen is displayed Enter a user name and password to access the Switch s management mode Below is a list and description of the main folders available in the web interface Configurations Contains screens concerning configurations for IP Address Switch Information Advanced Settings Port Configuration IGMP Spanning Tree Forwarding Filtering VLANs Port Bandwidth SNTP Settings Port Security QoS MAC Notification LACP Access Profile Table System Log Servers and PAE Access Entity Management Contains screens concerning configurations for Security IP User Accounts Access Authentication Control TACACS and SNMP V3 Monitoring Contains screens concerning monitoring the Switch pertaining to Port Utilization CPU Utilization Packets Errors Size MAC Address IGMP Snooping Group IGMP Snooping Forwarding VLAN Status Router Port and Port Access Control Maintenance Contains screens concerning configurations and information about Switch maintenance including TFTP Services Switch History Ping Test Save Changes Reboot Services and Logout Single IP Management Contains screens concerning information on S
134. group settings VLAN settings will automatically change in conjunction with the change of the port trunk group settings Static VLAN Entry In the Configuration folder open the VLAN folder and click the Static VLAN Entry link to open the following window 67 m r la arnat Qwuwite h Illearoe iuda 2 LI JarnaQT SIUJITRN eare 5 NQ ayer CUICCE O W ILCI USCI S MWuliac 002 10 Static VLANs Add new 802 10 VLAN Current 802 10 Static VLANs Entries default Figure 6 20 Current 802 1Q Static VLANs Entries window The 802 1Q Static VLANs menu lists all previously configured VLANs by VLAN ID and name To delete an existing 802 1Q VLAN click the corresponding button under the Delete heading To create a new 802 1Q VLAN click the Add button in the Static VLANs menu A new menu will appear as shown below to configure the port settings and to assign a unique name and number to the new VLAN See the table below for a description of the parameters in the new menu 802 10 Static VLAN m Disabled 33333323323323224222232223 I i hw vw hw hv vw iv iv iv iY vw vw we we we we vw we ee ee oe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe ssl o sls a a a o ols o 2E JE JE JE JE JE 2E JE e e IM IM IM IM JM LAM IM IM IM IM IM IM IM JE IM 4 fw v iw jw le e e le e e UM dw fe of fe fe alala alol olola elele e sses elo o e su fe fe fe fe esl JE JE JE e el
135. h a female DB 9 connector for the console port on the Switch To connect a terminal to the console port 1 Connect the female connector of the RS 232 cable directly to the console port on the Switch and tighten the captive retaining screws 2 Connect the other end of the cable to a terminal or to the serial connector of a computer running terminal emulation software Set the terminal emulation software as follows I A a a Select the appropriate serial port COM port 1 or COM port 2 Set the data rate to 9600 baud Set the data format to 8 data bits 1 stop bit and no parity Set flow control to none Under Properties select VT100 for Emulation mode Select Terminal Keys for Function Arrow and Ctrl Keys Ensure that you select Terminal keys not Windows keys NOTICE When you use HyperTerminal with the Microsoft Windows 5 2000 operating system ensure that you have Windows 2000 Service Pack 9 2 or later installed Windows 2000 Service Pack 2 allows you to use arrow keys in HyperTerminal s VT100 emulation See www microsoft com for information on Windows 2000 service packs After you have correctly set up the terminal plug the power cable into the power receptacle on the back of the Switch The boot sequence appears in the terminal After the boot sequence completes the console login screen displays 10 If you have not logged into the command line interface CLI program press the Enter key at t
136. h will be identified in this field with the term Boot Size ea meneame Date date that the firmware was added io the Switch From Te address of tne Server trom which tne firmware came user The name of the user wno downloaded the firmware Set Boot Click the Apply button in this field to set the firmware version to be used upon the next boot up of the Switch Delete Click the A lin this column to permanently delete the corresponding firmware from the Switch Download Settings from TFTP Server To download a settings file from a TFTP server click on the TFTP Service folder in the Maintenance folder and then click the Download Settings from TFTP Server link Download Settings from TFIP Server mene Figure 9 2 Download Configuration Enter the IP address of the TFTP server and specify the location of the switch settings file on the TFTP server Click Start to record the IP address of the TFTP server and to initiate the file transfer Upload Settings to TFTP Server To upload the switch settings to a TFTP server click on the TFTP Service folder in the Maintenance folder and then click the Upload Settings to TFTP Server link 157 DES 3550 Layer 2 Fast Ethernet Switch User s Guide sto TFIP Server Figure 9 3 Upload Settings to TFTP Server window Enter the IP address of the TFTP server and the path and filename for the switch settings on the TFTP server Click Start to record t
137. hanges permanently click the Save Changes link in the Maintenance folder The following screen will appear Save Configuration save system settings to INV R AM cave Configuration Figure 9 7 Save Changes Screen Click the Save Configuration button to save the current switch configuration in NV RAM The following dialog box will confirm that the configuration has been saved Microsoft Internet Explo X Complete Figure 9 8 Save Configuration Confirmation Click the OK button to continue 160 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Once the switch configuration settings have been saved to NV RAM they become the default settings for the Switch These settings will be used every time the Switch is rebooted Reboot Services The following section will aid the user in rebooting and resetting the Switch using the following windows described in detailed Reboot Device The following window is used to restart the Switch All of the configuration information entered from the last time Save Changes was executed will be lost Click the Reboot button to restart the Switch Are you sure you want io proceed with the system reboot If ves click the Reboot bution Figure 9 9 Reboot window Reset The Reset function has several options when resetting the Switch Some of the current configuration parameters can be retained while resetting all other configuration parameters to their fac
138. hat 1s more than one hop away from the CS The SIM group is a group of switches that are managed as a single entity The DES 3550 may take on three different roles gt Commander Switch CS This is a switch that has been manually configured as the controlling device for a group and takes on the following characteristics It has an IP Address It is not a command switch or member switch of another Single IP group It is connected to the member switches through its management VLAN 163 DES 3550 Layer 2 Fast Ethernet Switch User s Guide gt Member Switch MS This is a switch that has joined a single IP group and is accessible from the CS and it takes on the following characteristics It is not a CS or MS of another IP group It is connected to the CS through the CS management VLAN gt Candidate Switch CaS This is a switch that is ready to join a SIM group but is not yet a member of the SIM group The Candidate Switch may join the SIM group through an automatic function of the DES 3550 or by manually configuring it to be a MS of a SIM group A switch configured as a CaS 1s not a member of a SIM group and will take on the following characteristics It 1s not a CS or MS of another Single IP group It is connected to the CS through the CS management VLAN The following rules also apply to the above roles gt Each device begins in a Commander state gt CS s must change their role to CaS and then to MS to become a MS of a
139. he 802 1X Authenticator Settings on a port by port basis see the 802 1X Authenticator Settings table Port Capability Settings Existing 802 1x port settings are displayed and can be configured using the window below Click Port Capability Settings on the PAE Access Entity folder to open the 802 1X Capability Settings window 109 DES 3550 Layer 2 1 d B El 5 n E B 10 1l Figure 6 60 802 1x Capability Settings and Table window 110 fy PQ j sit nah J a Jn ria gt rel 5 DES 3550 Layer 2 Fast Ethernet Switch User s Guide To set up the Switch s 802 1x port based authentication select which ports are to be configured in the From and To fields Next enable the ports by selecting Authenticator from the drop down menu under Capability Click Apply to make your change take effect Configure the following 802 1x capability settings Parameter Description Ports being configured for 802 1x settings Capability Two role choices can be selected Authenticator A user must pass the authentication process to gain access to the network None The port is not controlled by the 802 1x functions Initializing Ports Existing 802 1x port settings are displayed and can be configured using the window below Click Initialize Port s on the PAE Access Entity folder on the Configuration menu to open the 802 1x Port Initial window From Poti y Pot y Apply Initialize Port T Author
140. he IP address of the TFTP server and to initiate the file transfer Upload Log to TFTP Server To upload the switch history log file to a TFTP server open the TFTP Service folder in the Maintenance folder and then click the Upload log to TFTP Server link Upload log to TFTP Server 1053 13 34 Figure 9 4 Upload Log to TFTP Server window Enter the IP address of the TFTP server and the path and filename for the history log on the TFTP server Click Start to record the IP address of the TFTP server and to initiate the file transfer Switch History The Web manager allows the Switch s history log as compiled by the Switch s management agent to be viewed To view the Switch history log open the Maintenance folder and click the Switch History link 158 gt 1 Mul Rae T L T p VOD N MAST FINCI I COL L LUI INI Lu Switch History 00000 days 02 33 15 O0000 days 02 33 18 00000 days 02 32 02 0000 days 02 32 00 O0000 days 02 31 35 00000 dass 00 03 34 0000 days 00 00 19 00000 days 00 00 05 00000 days 00 00 01 00000 days 18 39 25 O0000 days 18 39 22 O0000 days 18 02 25 DOCDO days 15 02 16 00000 days 17 55 12 00000 days 02 04 25 00000 days 01 54 04 00000 days 01 47 55 OOO00 days 01 47 55 00000 days 01 47 24 0000 days 01 44 37 Configuration saved to flash Username j Configuration saved to flash Username j Firmware upgraded successfully U sername Firmware upgraded successfully Use
141. he User name and password prompts There is no default user name and password for the Switch User names and passwords must first be created by the administrator If you have previously set up user accounts log in and continue to configure the Switch 11 Enter the commands to complete your desired tasks Many commands require administrator level access privileges Read the next section for more information on setting up user accounts See the DES 3550 Command Line Interface Reference Manual on the documentation CD for a list of all commands and additional information on using the CLI When you have completed your tasks exit the session with the logout command or close the emulator program Make sure the terminal or PC you are using to make this connection is configured to match these settings If you are having problems making this connection on a PC make sure the emulation is set to VT 100 You will be able to set the emulation by clicking on the File menu in your HyperTerminal window clicking on Properties in the drop down menu and then clicking the 26 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Settings tab This is where you will find the Emulation options If you still do not see anything try rebooting the Switch by disconnecting its power supply Once connected to the console the screen below will appear on your console screen This is where the user will enter commands to perform all the available management funct
142. hts and the product owner may also have other rights which vary from state to state Trademarks D Link is a registered trademark of D Link Systems Inc Other trademarks or registered trademarks are the property of their respective manufacturers or owners Copyright Statement No part of this publication or documentation accompanying this Product may be reproduced in any form or by any means or used to make any derivative such as translation transformation or adaptation without permission from D Link Corporation D Link Systems Inc as stipulated by the United States Copyright Act of 1976 Contents are subject to change without prior notice Copyright 2005 by D Link Corporation D Link Systems Inc All rights reserved CE Mark Warning This is a Class A product In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures FCC Statement This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful Interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communication However there is no guarantee that interference will not occur in a particular installation If thi
143. ication Server Group Settings Figure 7 7 Authentication Server Group Settings window This screen displays the Authentication Server Groups on the Switch The Switch has three built in Authentication Server Groups that cannot be removed but can be modified To modify a particular group click its hyperlinked Group Name which will then display the following window lost to Server Group tacacs ADO to Group server Group tacacs maa Show All Server Group Entries Figure 7 8 Add a Server Host to Server Group tacacs window To add an Authentication Server Host to the list enter 1ts IP address in the IP Address field choose the protocol associated with the IP address of the Authentication Server Host and click ADD to Group to add this Authentication Server Host to the group E NOTE The user must configure Authentication Server Hosts using the Authentication Server Hosts window before adding hosts to the list Authentication Server Hosts must be configured for their specific protocol on a remote centralized server before this function can work properly NOTE The three built in server groups on the Switch can only have server hosts running the same TACACS daemon TACACS XTACACS TACACS protocols are separate entities and are not compatible with each other Authentication Server Hosts This window will set user defined Authentication Server Hosts for the TACACS XTACACS TACACS security protocols on the Switch
144. identified by either the VID or the VLAN name VLAN Name Allows the entry of a name for the new VLAN in the Add dialog box or for editing the VLAN name in the Edit dialog box Advertisement Enabling this function will allow the Switch to send out GVRP packets to outside sources notifying that they may join the existing VLAN Port Settings Allows an individual port to be specified as member of a VLAN Ta Specifies the port as either 802 1Q tagging or 802 1Q untagged Checking 9 the box will designate the port as Tagged None Allows an individual port to be specified as a non VLAN member Select this to specify the port as a static member of the VLAN Egress member ports are ports that will be transmitting traffic for the VLAN These ports can be either tagged or untagged Forbidden Select this to specify the port as not being a member of the VLAN and that the port is forbidden from becoming a member of the VLAN dynamically Click Apply to implement changes made 69 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Port VLAN ID PVID In the Configuration menu open the VLANS folder and click Port VLAN ID The 802 10 Port Settings dialog box shown below allows you to determine whether the Switch will share its VLAN configuration information with other GARP VLAN Registration Protocol GVRP enabled switches In addition Ingress Checking can be used to limit traffic by filtering incoming packets whose PVID does not
145. ing only EAPOL frames to be sent and received through the port The authentication process begins when the link state of the port transitions from down to up or when an EAPOL start frame is received The Switch then requests the identity of the client and begins relaying authentication messages between the client and the authentication server 108 DES 3550 Layer 2 Fast Ethernet Switch User s Guide TxPeriod 30 This sets the TxPeriod of time for the authenticator PAE state machine This value determines the period of an EAP Request Identity packet transmitted to the client QuietPeriod 60 This allows you to set the number of seconds that the Switch remains in the quiet state following a failed authentication exchange with the client SuppTimeout 30 This value determines timeout conditions in the exchanges between the Authenticator and the client ServerTimeout 30 This value determines timeout conditions in the exchanges between the Authenticator and the authentication server MaxReq 2 The maximum number of times that the Switch will retransmit an EAP Request to the client before it times out of the authentication sessions ReAuthPeriod 3600 A constant that defines a nonzero number of seconds between periodic reauthentication of the client ReAuth Disabled Determines whether regular reauthentication will take place on this port Click Apply to implement your configuration changes To view configurations for t
146. ingle IP Management including SIM Settings Topology and Firmware Configuration downloads NOTE Be sure to configure the user name and password in the User Accounts menu before connecting the Switch to the greater network 36 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Configuring The Switch IP Address Switch Information Advanced Settings Port Configuration Port Mirroring Port Description IGMP Spanning Tree Forward Filtering VLANs Port Bandwidth SNTP Settings Port Security QoS MAC Notification LACP Access Profile Table System Log Servers PAE Access Entity IP Address The IP Address may initially be set using the console interface prior to connecting to it through the Ethernet If the Switch IP address has not yet been changed read the Introduction of the CLI Manual or return to Section 4 of this manual for more information To change IP settings using the Web manager you must access the IP Address menu located in the Configuration folder To configure the Switch s IP address Open the Configuration folder and click the IP Address menu link The Web manager will display the Switch s current IP settings in the IP configuration menu as seen below 37 DES 3550 Layer 2 Fast Ethernet Switch User s Guide IP Address Settings Get IP From Manual IP Address fi 0 53 13 50 Subnet Mask 255 0 0 0 Default Gateway 0 0 0 0 YLAN Name default Admin State Enabled Figure 6 1 IP
147. ings To change MAC Notification settings for a port or group of ports on the Switch click Port Settings in the MAC Notification folder which will display the following screen 84 DES 3550 Layer 2 Fast Ethernet Switch User s Guide MAC Notification Port Settings Porti Porti Disabled Apply MAC Notification Port State Table Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Cp a Sd O A Pecan A a Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Figure 6 34 MAC Notification Port Settings and Port State Table 85 DES 3550 Layer 2 Fast Ethernet Switch User s Guide The following parameters may be set Parameter Description From To Select a port or group of ports to enable for MAC notification using the pull down menus S Enable MAC Notification for the ports selected using the pull down menu Click Apply to implement changes made LACP Understanding Port Trunk Groups Port trunk groups are used to combine a number of ports together to make a single high bandwidth data pipeline Th
148. instructs the Switch to examine the 802 1p priority value 802 1p of each packet header and use this as the or part of the criterion for forwarding Selecting this option instructs the Switch to examine the Ethernet type value as in each frame s header The user may set the Access Profile Table on a per port basis by entering a port number in this field The page shown below is the IP Access Profile Configuration page Type 92 DES 3550 Layer 2 Fast Ethernet Switch User s G Access Profile Configuration Profile ID 1 255 Type Vian source IP Mask Destination IP Mask Dscp Protocol type cade y type src port mask dest port mask flag bit ug ack psh rt syn fin sre port mask dest port mask 3 user value user mask C protocol id user mask uset mask user mask Ju user mask Show All Access Profile T able Entries Figure 6 42 Access Profile Configuration IP The following parameters can be set for IP Parameter Description Profile ID 1 255 e a identifier number for this profile set This value can be set Select profile based on Ethernet MAC Address IP address or packet content mask This will change the menu according to the requirements for the type of profile Select Ethernet to instruct the Switch to examine the layer 2 part of each packet header Select IP to instruct the Switch to examine the IP address in each frame s header Select Packet C
149. ion of groups of ports each port group of which will have its own spanning tree and will require some of its own configuration settings An STP Group will use the switch level parameters entered above with the addition of Port Priority and Port Cost An STP Group spanning tree works in the same way as the switch level spanning tree but the root bridge concept is replaced with a root port concept A root port is a port of the group that is elected based on port priority and port cost to be the connection to the network for the group Redundant links will be blocked just as redundant links are blocked on the switch level The STP on the switch level blocks redundant links between switches and similar network devices The port level STP will block redundant links within an STP Group It is advisable to define an STP Group to correspond to a VLAN group of ports The following fields can be set Parameter Description From To Port 1 A consecutive group of ports may be configured starting with the selected port State Disabled This drop down menu allows you to Enable or Disable STP for the selected group of ports Cost 0 A Port Cost can be set from 1 to 200000000 The lower the number the greater the probability the port will be chosen to forward packets Default port cost 100Mbps port 200000 Gigabit ports 20000 Priority lt 128 gt A Port Priority can be from 0 to 240 The lower the number the greater the proba
150. ions The Switch will prompt the user to enter a user name and a password Upon the initial connection there is no user name or password and therefore just press enter twice to access the command line interface DES 3550 Fast Ethernet Switch Command Line Interface Firmware Build 1 00 B02 Copyright C 2000 2004 D Link Corporation All rights reserved UserName Figure 4 1 Initial screen after first connection First Time Connecting to the Switch The Switch supports user based security that can allow you to prevent unauthorized users from accessing the Switch or changing its settings This section tells how to log onto the Switch NOTE The passwords used to access the Switch are case sensitive therefore S is not the same as s When you first connect to the Switch you will be presented with the first login screen shown below NOTE Press Cirl R to refresh the screen This command can be used at any time to force the console program in the Switch to refresh the console screen 21 DES 3550 Layer 2 Fast Ethernet Switch User s Guide DES 3558 Fast Ethernet Switch Command Line Interface Firmware Build 1 00 B02 Copyright C 2000 2004 D Link Corporation All rights reserved UserName Figure 4 2 Initial screen first time connecting to the Switch Press Enter in both the Username and Password fields You will be given access to the command prompt DES 3550 4 shown below There is
151. is button instructs the Switch to display a line graph rather than a table 140 DES 3550 Layer 2 Fast Ethernet Switch User s Guide UMB_cast RX Click the UMB_cast RX link in the Packets folder of the Monitoring menu to view the following graph of UMB cast packets received on the Switch View Table 1000 300 Unicast 800 Multicast FO Broadcast BOO 500 400 300 200 100 Unitipacketisecs Time Interval Record Number Show Hide v Unicast IY Multicast v Broadcast Figure 8 5 Rx Packets Analysis window line graph for Unicast Multicast and Broadcast Packets To view the UMB cast Table click the View Table link which will show the following table 141 DES 3550 Layer 2 Fast Ethernet Switch User s Guide iew Linel hart Packet Analysis of Port1 E ls 36745937 Bytes 21905 Packets 32215 166 O 10 0 Unicast anas Multicast 15150 Broadcast 297942 LI 15 Bytes 1734536 649 Fackets 567 b Figure 6 64 Rx Packets Analysis window table for Unicast Multicast and Broadcast Packets The following fields may be set or viewed Parameter Description Time Interval 1s Select the desired setting between 1s and 60s where s stands for seconds The default value is one second Record Number 200 Select number of times the Switch will be polled between 20 and 200 The default value is 20 Counts the total number of good packets that were received by a unicast address
152. isabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled A Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Figure 6 23 802 1Q Port Settings and 802 1Q Port Table EE ie SS fe E E ES ESSERI ess _ 1 l 1 l l 1 l 1 l 1 l 1 1 1 1 1 1 l 1 l 1 l 1 l 1 l 1 1 1 1 l 1 l l 1 l 1 1 l 1 1 l 1 1 l 1 1 l 1 70 DES 3550 Layer 2 Fast Ethernet Switch User s Guide The following fields can be set Parameter Description These two fields allow you to specify the range of ports that will be included From To in the Port based VLAN that you are creating using the 802 1Q Port Settings page The read only field in the GVRP Table shows the current PVID assignment for each port The Switch s default is to assign all ports to the Default VLAN with a VID of 1 The PVID is used by the port to tag outgoing untagged packets and to make filtering decisions about incoming packets lf the port is specified to accept only tagged frames as tagging and an untagged packet is forwarded PVID to the port for transmission the port will add an 802 1Q tag using the PVID to write the VID in the tag When the packet arrives at its destination the receiving device will use the PVID to make VLAN forwarding decisions If a packet is received by the port and Ingress filtering is enabled the port will compare the V
153. ission of a packet ExColl Excessive Collisions The number of packets for which transmission failed due to excessive collisions SingColl oingle Collision Frames The number of successfully transmitted packets for which transmission is inhibited by more than one collision An estimate of the total number of collisions on this network segment Show Hide Check whether or not to display ExDefer LateColl ExColl SingColl and Coll errors Clicking this button clears all statistics counters on this window View Table Clicking this button instructs the Switch to display a table rather than a line graph View Line Chart Clicking this button instructs the Switch to display a line graph rather than a table 148 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Size The Web Manager allows packets received by the Switch arranged in six groups and classed by size to be viewed as either a line graph or a table Two windows are offered View Table Tx amp Rx Size Analysis Port 1 153 1381 i LLU 1074 512 1023 1024 1518 Time Interval Record Number 200 Show Hide M E4 Iw 65 127 vw 128 255 vw 256 511 Iw 512 1023 M 1024 1518 Figure 8 12 Rx Size Analysis window line graph To view the Packet Size Analysis Table click the link View Table which will show the following table iew Line Chart Packet Analysis of Port1 Time Interval ls 322762 125 0 55 127 21077 1258 255 17660 296 911 30914
154. istrator account will be verified by a Success message User names and passwords can be up to 15 characters in length a ly NOTE Passwords f are case sensitive The sample below illustrates a successful creation of a new administrator level account with the user name newmanager DES 3550 4 create account admin newmanager Command create account admin newmanager Enter a case sensitive new password Enter the new password again for confirmation Success DES 3550 4 NOTICE CLI configuration commands only modify the running configuration file and are not saved when the Switch is rebooted To save 5 all your configuration changes in nonvolatile storage you must use the save command to copy the running configuration file to the startup configuration SNMP Settings Simple Network Management Protocol SNMP is an OSI Layer 7 Application Layer designed specifically for managing and monitoring network devices SNMP enables network management stations to read and modify the settings of gateways routers switches and other 29 DES 3550 Layer 2 Fast Ethernet Switch User s Guide network devices Use SNMP to configure system features for proper operation monitor performance and detect potential problems in the Switch switch group or network Managed devices that support SNMP include software referred to as an agent which runs locally on the device A defined set of variables managed obje
155. itch will send an authentication request to the first TACACS host in the server group If no response comes from the server host the Switch will send an authentication request to the second tacacs host in the server eroup and so on until the list 1s exhausted At that point the Switch will restart the same sequence with the following protocol listed XTACACS If no authentication takes place using the XTACACS list the local account database set in the Switch is used to authenticate the user When the local method is used the privilege level will be dependant on the local account privilege configured on the Switch Successful login using any of these techniques will give the user a user privilege only If the user wishes to upgrade his or her status to the administrator level the user must use the Enable Admin window in which the user must enter a previously configured password set by the administrator See the Enable Admin part of this section for more detailed information concerning the Enable Admin command To view the following screen click Management Access Authentication Control Login Method Lists Add Login Method List Settings eleie default local X Figure 7 11 Login Method Lists Settings window The Switch contains one Method List that 1s set and cannot be removed yet can be modified To delete a Login Method List defined by the user click the ad under the Delete heading corresponding to the entry desired to be
156. ized N A N A Authorized N A HA Authorized N A N A Authorized NA NA Authorized NA N A Authorized NA NA Authorized HA N A Authorized N A HA Authorized N A N A Authorized Figure 6 61 802 1x Port Initial and Port Authentication state window This window allows you to initialize a port or group of ports The Initialize Port Table in the bottom half of the window displays the current status of the port s once you have clicked Apply This window displays the following information Parameter Description 111 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Select ports to be initialized Pot A read only field indicating a port on the Switch MAC Address The MAC address of the Switch connected to the corresponding port if any Auth PAE State The Authenticator PAE State will display one of the following nitialize Disconnected Connecting Authenticating Authenticated Aborting Held ForceAuth ForceUnauth and N A Backend State The Backend Authentication State will display one of the following Request Response Success Fail Timeout Idle Initialize and N A Port Status The status of the controlled port can be authorized unauthorized or N A Note The user must first globally enable 802 1X in the Advanced Settings window in the Configuration folder before initializing ports Information in the Initialize Ports Table cannot be viewed before enabling 802 1X Reauthenticate Port s This window allows yo
157. ket Content Mask adjust the following parameters and click Apply Parameter Description Profile ID This is the identifier number for this profile set Select Permit to specify that the packets that match the access profile are forwarded by the Switch according to any additional rule added see below Select Deny to specify that packets that do not match the access profile are not forwarded by the Switch and will be filtered Type in a unique identifier number for this access This value can be set from 1 50 Type Selected profile based on Ethernet MAC Address IP address or Packet Content Mask Ethernet instructs the Switch to examine the layer 2 part of each packet header IP instructs the Switch to examine the IP address in each frame s header Packet Content Mask instructs the Switch to examine the packet header 101 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Priority Select this option to instruct the Switch to use the 802 1p priority value entered in the adjacent field for packets that meet the criteria A number between 0 the lowest priority and 7 the highest priority can be entered This field will instruct the Switch to mask the packet header beginning with the offset value specified value 0 15 Enter a value in hex form to mask the packet from the beginning of the packet to the 16 byte value 16 31 Enter a value in hex form to mask the packet from byte 16 to byte 31 va
158. l open the Web based user interface The Switch management features available in the web based manager are explained below Web based User Interface The user interface provides access to various Switch configuration and management screens allows you to view performance statistics and permits you to graphically monitor the system status Areas of the User Interface The figure below shows the user interface The user interface is divided into 3 distinct areas as described in the table HS 3 550 i 9 won 13 1 16 38 y LEA 7253 M RN NIB li ee see ee ee ee ee mm u m JHjdgemanmannonna oO OCC a Mos E X Dre GI MIR Arcal PM PERRA gt E Building Networks for People IP Address Settings Domed onfiguration Management 0531350 I Mo nito ring SS 000 Maintenance foooo Single IP Management ccc Figure 5 2 Main Web Manager Screen 35 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Area Function Presents a graphical near real time image of the front panel of the Switch This area displays the Switch s ports and expansion modules showing port activity duplex mode or flow control depending on the specified mode Various areas of the graphic can be selected for performing management functions including port configuration Select the menu or window to be displayed The folder icons can be opened to display the hyperlinked menu buttons and subfolders contained within them Click the D Link logo to
159. lement your new settings click Apply To return to the SNMP View Table click the Show All SNMP View Table Entries link SNMP Group Table A SNMP Group created with this table maps SNMP users identified in the SNMP User Table to the views created in the previous menu To view the SNMP Group Table open the SNMP V3 folder and click the SNMP Group Table entry The following screen should appear otal Entries 9 Note Insert a maximum of 30 entries into the table SNMP Group Table public al WIP yw No Authh oPriv public my WIP we NoAuthh oPriv md WIP wa HouthH oPriv md WP yw HouthH oPriv abl WIP we HN oAuthh oPriv abl WP yw No4whHoPrrr abl WIP a NH oAuthh oPrivr al WIP HN oAuthh oPrivr ml WIP NoAuthh oPriv x DE 5 5 5 x Figure 7 25 SNMP Group Table To delete an existing SNMP Group Table entry click the corresponding A under the Delete heading To display the current settings for an existing SNMP Group Table entry click the blue hyperlink for the entry under the Group Name 132 Cant CihAvrnart Citak lara Smile DES 3550 Layer 2 Fast Ethernet Switch User s Guide SNMP Group Table Display Group Name initial Read View Name restricted Write View Name Notify View Name restricted security Model SINMPu3 security Level No4 uhHNoPre Show All SNMP Group Table Entries Figure 7 26 SNMP Group Table Display To add a new entry to the Switch s SNMP Group Table click the Add button i
160. lf is a member of the tagged VLAN If it is not the packet will be dropped If the ingress port is a member of the 802 1Q VLAN the switch then determines if the destination port is a member of the 802 1Q VLAN If it is not the packet is dropped If the destination port is a member of the 802 1Q VLAN the packet 1s forwarded and the destination port transmits it to its attached network segment If the packet 1s not tagged with VLAN information the ingress port will tag the packet with its own PVID as a VID if the port is a tagging port The switch then determines if the destination port is a member of the same VLAN has the same VID as the ingress port If it does not the packet is dropped If it has the same VID the packet is forwarded and the destination port transmits it on its attached network segment This process is referred to as ingress filtering and is used to conserve bandwidth within the Switch by dropping packets that are not on the same VLAN as the ingress port at the point of reception This eliminates the subsequent processing of packets that will just be dropped by the destination port Default VLANs The Switch initially configures one VLAN VID 1 called default The factory default setting assigns all ports on the Switch to the default As new VLANS are configured in Port based mode their respective member ports are removed from the default Packets cannot cross VLANs If a member of one VLAN wants to
161. lization Check whether or not to display Utilization 138 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Packets The Web Manager allows various packet statistics to be viewed as either a line graph or a table Six windows are offered Received RX Click the Received RX link in the Packets folder of the Monitoring menu to view the following graph of packets received on the Switch View Tahle 2ra 0E IS BH vie 5 245 7K 218 4K Packets 191 1K 163 9k 13B 5K 108 2k 81 3K ILEK K 1000 Time Interval Record Number Show Hide Iv Bytes IY Packets Figure 8 3 Rx Packets Analysis window line graph for Bytes and Packets To view the Received Packets Table click the link View Table which will show the following table 139 DES 3550 Layer 2 Fast Ethernet Switch User s Guide iew Linel hatrt Packet Analysis of Port 1 Timeinteva ls Bytes Unicast Multicast Bytes Figure 8 4 Rx Packets Analysis window table for Bytes and Packets The following fields may be set or viewed Parameter Description Time Interval 1s Select the desired setting between 1s and 60s where s stands for seconds The default value is one second Record Number 200 Select number of times the Switch will be polled between 20 and 200 The default value is 20 COIE View Table Clicking this button instructs the Switch to display a table rather than a line graph View Line Chart Clicking th
162. lly The Switch can now be configured and managed via Telnet and the CLI or via the Web based management agent using the above IP address to connect to the Switch Switch Information Click the Switch Information link in the Configuration menu The subsections below describe how to change some of the basic settings for the Switch such as changing IP settings and assigning user names and passwords for management access privileges as well as how to save the changes and restart the Switch Switch Information Click the Switch Information link in the Configuration menu 40 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Switch Information Basi Device Type DES 3550 External Ports MAC Address 00 01 02 03 04 00 Boot PROM Version 3 DO D01 Firmware Version 1 00 B03 Hardware Version 281 Power Status Man Abnormal Redundant Present vstem Name vstem Location system Contact Figure 6 2 Switch Information Basic Settings The Switch Information window shows the Switch s MAC Address assigned by the factory and is unchangeable IP configuration some important functions implemented and their status In addition the Boot PROM Firmware Version and Hardware Version are present This information is helpful to keep track of PROM and Firmware updates and to obtain the Switch s MAC address for entry into another network device s address table 1f necessary The user
163. ls E Lt ra Cj 5 mL Passive E J Passive RH Li Passive E E Passive EH Lu Passive EH Ch Passive E Passive EH Go Passive E c Passive Ei ce Passive El EH Passive bo t J Passive bi Li Passive b i E Passive bo Lu Passive E J Ch Passive E Passive bi Go Passive be o Passive Li ce Passive Li E Passive Led bo Passive Lal Li Passive L2 E Passive Li la Passive Passive Passive Passive Passive Passive Passive Passive Passive Passive Passive Passive Passive Passive Passive Passive Figure 6 39 Lacp Port Settings and LACP Port Table 90 DES 3550 Layer 2 Fast Ethernet Switch User s Guide The user may set the following parameters Parameter Description From To A consecutive group of ports may be configured starting with the selected port Active Active LACP ports are capable of processing and sending LACP control frames This allows LACP compliant devices to negotiate the aggregated link so the group may be changed dynamically as needs require In order to utilize the ability to change an aggregated port group that is to add or subtract ports from the group at least one of the participating devices must designate LACP ports as active Both devices must support LACP Passive LACP ports that are designated as passive cannot initially send LA
164. lue 32 47 Enter a value in hex form to mask the packet from byte 32 to byte 47 value 48 63 Enter a value in hex form to mask the packet from byte 48 to byte 63 value 64 79 Enter a value in hex form to mask the packet from byte 16 to byte 31 To view the settings of a previously correctly configured rule click SIEN in the Access Rule Table to view the following screen Access Rule Display E 1 Permut Packet Content Mask E Offset 0 15 mask Us00000000 mask Us00000000 mask Dx bt mask xag Offset 16 31 mask 000000000 mask 000000000 mask Us00000000 mask xag Offset 32 47 mask Ox00000000 mask Us00000000 mask Us00000000 mask 0xD0000000 Offset 48 63 ma skD000000000 mask Us00000000 mask xag mask Us00000000 Offset 64 79 mask 0xD0000000 mask 000000000 mask xag mask Us00000000 Show All Access Rule Entries Figure 6 52 Access Rule Display window Ethernet 102 Cnet Etharnart Qiuait h lanric Ml ivrl DES 3550 Layer 2 Fast Ethernet Switch User s Guide System Log Server The Switch can send Syslog messages to up to four designated servers using the System Log Server In the Configuration folder click System Log Server to view the screen shown below Add Current System Log Servers Figure 6 53 System Log Servers window The parameters configured for adding and editing System Log Server settings are the same See the table below for a description Sy
165. ly impractical Today s switches are an ideal solution to most kinds of local area network congestion problems Switch Description The DES 3550 is equipped with unshielded twisted pair UTP cable ports providing dedicated 10 or 100 Mbps bandwidth The Switch has 24 UTP ports and Auto MDI X MDI II convertible ports that can be used for uplinking to another switch These ports can be used for connecting PCs printers servers hubs routers switches and other networking devices The dual speed ports use standard twisted pair cabling and are ideal for segmenting networks into small connected subnetworks for superior performance Each 10 100 port can support up to 200 Mbps of throughput in full duplex mode In addition the Switch has two Mini GBIC combo ports These two gigabit combo ports are ideal for connecting to a server or network backbone 14 DES 3550 Layer 2 Fast Ethernet Switch User s Guide This stand alone Switch enables the network to use some of the most demanding multimedia and imaging applications concurrently with other user applications without creating bottlenecks The built in console interface can be used to configure the Switch s settings for priority queuing VLANS and port trunk groups port monitoring and port speed Features e EEE 802 3 IOBASE T compliant e EEE 802 3u LOOBASE TX compliant e EEE 802 1p Priority Queues e EEE 802 3x flow control in full duplex mode e EEE 802 3ad Link Aggregation Control
166. ly without going through the listening and learning states An edge port loses its status if 1t receives a BPDU packet immediately becoming a normal spanning tree port P2P Port A P2P port is also capable of rapid transition P2P ports may be used to connect to other bridges Under RSTP all ports operating in full duplex mode are considered to be P2P ports unless manually overridden through configuration 802 1d 802 1w Compatibility RSTP can interoperate with legacy equipment and is capable of automatically adjusting BPDU packets to 802 1d format when necessary However any segment using 802 1 STP will not benefit from the rapid transition and rapid topology change detection of RSTP The protocol also provides for a variable used for migration in the event that legacy equipment on a segment is updated to use RSTP STP Switch Settings The Spanning Tree Protocol STP operates on two levels On the switch level the settings are globally implemented On the port level the settings are implemented on a per user defined group of ports basis To open the following window open the Spanning Tree folder in the Configuration menu and click the STP Switch Settings link 22 ro os Ful o ose AO tml l Exact ET1nharnat Qyyysitrn ica J ra f II ot I IL t f n i I CiU LU Ivl lol WW l FE CC 4 Switch Spanning Tree Settings spanning Tree Protocol Bridge Max Age 6 40 Sec Bridge Hello Time 1 10 Sec Bridge Forward
167. match the PVID of the port Results can be seen in the table under the configuration settings as seen below O NN CENE did Port 1 Port Disabled Disabled Admit All Apply Ingress Checking Acceptable Frame Type 1 Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames Disabled Enabled All Frames D
168. may also enter a System Name System Location and System Contact to aid in defining the Switch to the user s preference Advanced Settings The Advanced Settings window contains the main settings for all major functions for the Switch To view the Advanced Settings window click its link in the Configuration folder This will enable the following window to be viewed and configured 4 DES 3550 Layer 2 Fast Ethernet Switch User s Guide itch Information Advanced Settings serial Port Auto Logout Time MAC Address Aging Time IGMP Snooping Disabled gt Telnet Status Enabled Web Status Enabled v mk Aggregation Algorithm MacSouce RMON Status Disabled 802 1x Status Disabled y 02 1x Authentication Protocol radius eap y Syslog Global State Disabled Figure 6 3 Switch Information Advanced Settings Parameter Description Serial Port Auto Select the logout time used for the console interface This automatically logs Logout Time the user out after an idle period of time as defined Choose from the following options 2 Minutes 5 Minutes 10 Minutes 15 Minutes or Never The default setting is 10 minutes MAC Address Aging This field specifies the length of time a learned MAC Address will remain in Time the forwarding table without being accessed that is how long a learned MAC Address is allowed to remain idle The default age out time for the Switch is 30
169. n das Ger t deutliche Anzeichen eines Defektes aufweist 16 Bei Reparaturen d rfen nur Orginalersatzteile bzw den Orginalteilen entsprechende Teile verwendet werden Der Einsatz von ungeeigneten Ersatzteilen kann eine weitere Besch digung hervorrufen 17 Wenden Sie sich mit allen Fragen die Service und Repartur betreffen an Ihren Servicepartner Somit stellen Sie die Betriebssicherheit des Ger tes sicher 18 Zum Netzanschlufs dieses Ger tes ist eine gepr fte Leitung zu verwenden F r einen Nennstrom bis 6A und einem Ger tegewicht gr fSer 3kg ist eine Leitung nicht leichter als HOSVV F 3G 0 75mm2 einzusetzen WARRANTIES EXCLUSIVE IF THE D LINK PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE THE CUSTOMER S SOLE REMEDY SHALL BE AT D LINK S OPTION REPAIR OR REPLACEMENT THE FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED EITHER IN FACT OR BY OPERATION OF LAW STATUTORY OR OTHERWISE INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE D LINK NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON TO ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE INSTALLATION MAINTENANCE OR USE OF D LINK S PRODUCTS D LINK SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS TESTING AND EXAMINATION DISCLOSE THAT THE ALLEGED DEFECT IN THE PRODUCT DOES NOT EXIST OR WAS CAUSED BY THE CUSTOMER S OR ANY THIRD PERSON S MISUSE NEGLECT IMPROPER INSTALLATION OR TESTING UNAU
170. n the upper left hand corner of the SNMP Group Table page This will open the SNMP Group Table Configuration page as shown below SNMP Group Table Configuration Group Name Read View Name White View Name Notify View Name security Model Figure 5 3 SNMP Group Table Configuration The following parameters can be set Parameter Description Group Name Type an alphanumeric string of up to 32 characters This is used to identify the new SNMP group of SNMP users Read View Name This name is used to specify that the SNMP group created can request SNMP messages Write View Name opecify a SNMP group name for users that are allowed SNMP write privileges to the Switch s SNMP agent Notify View Name opecify a SNMP group name for users that can receive SNMP trap messages generated by the Switch s SNMP agent Security Model SNMPv1 Specifies that SNMP version 1 will be used SNMPv2 Specifies that SNMP version 2c will be used The SNMPv2 supports both centralized and distributed network management strategies It includes improvements in the Structure of Management Information SMI 133 DES 3550 Layer 2 Fast Ethernet Switch User s Guide and adds some security features SNMPv3 Specifies that the SNMP version 3 will be used SNMPv3 provides secure access to devices through a combination of authentication and encrypting packets over the network Security Level The Security Level settings only apply to SNMPv3
171. ne between two devices will display the connection speed between two devices as shown below defaultjaa 00 01 c M al Pp 35 20 00 e Jlt 26 50 95 9 mEfault 35 26 00 aylt 99 35 26 dm default 35 289 DF pep default 35 76 8 4 a default Taf Joe Figure 10 7 Port Speed Utilizing the Tool Tip 169 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Right Click Right clicking on a device will allow the user to perform various functions depending on the role of the Switch in the SIM group and the icon associated with it Group Icon Collapse Property Figure 10 8 Right Clicking a Group Icon The following options may appear for the user to configure Collapse To collapse the group that will be represented by a single icon Expand To expand the group in detail CS MS and CaS in this group are shown Property To pop up a window to display the group information Property 3 Device Nama aetaur35 26 00 Module Mame Group Mac Address 00 19 72 35 26 00 Remote Port Mn Local Port Mn E B Port Speed Close Java Applet window Figure 10 9 Property window 170 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Commander Switch Icon Figure 10 10 Right Clicking a Commander Icon The following options may appear for the user to configure Collapse To collapse the group that will be represented by a single icon Expand T
172. ng the same warranty period This warranty applies to purchased software and to replacement software provided by D Link pursuant to this warranty but shall not apply to any update or replacement which may be provided for download via the Internet or to any update which may otherwise be provided free of charge D Link s sole obligation under this software warranty shall be to replace any defective software product with product which substantially conforms to D Link s applicable product documentation Purchaser assumes responsibility for the selection of appropriate application and system platform software and associated reference materials D Link makes no warranty that its software products will work in combination with any hardware or any application or system platform software product provided by any third party excepting only such products as are expressly represented in D Link s applicable product documentation as being compatible D Link s obligation under this warranty shall be a reasonable effort to provide compatibility but D Link shall have no obligation to provide compatibility when there is fault in the third party hardware or software D Link makes no warranty that operation of its software products will be uninterrupted or absolutely error free and no warranty that all defects in the software product within or without the scope of D Link s applicable product documentation will be corrected Link Building Networks for People Subje
173. nly Community Strings and Trap Stations Yes Read Only Update Firmware and Configuration Files Yes No System Utilities Yes No Factory Reset Yes No 116 DES 3550 Layer 2 Fast Ethernet Switch User s Guide User Account Management Add Update Delete User Accounts Yes No View User Accounts Yes No Admin and User Privileges After establishing a User Account with Admin level privileges be sure to save the changes by opening the Maintenance folder opening the Save Changes window and clicking the Save Configuration button Access Authentication Control The TACACS XTACACS TACACS commands let you secure access to the Switch using the TACACS XTACACS TACACS protocols When a user logs in to the Switch or tries to access the administrator level privelege he or she 1s prompted for a password If TACACS XTACACS TACACS authentication 1s enabled on the Switch it will contact a TACACS XTACACS TACACS server to verify the user If the user is verified he or she is granted access to the Switch There are currently three versions of the TACACS security protocol each a separate entity The Switch s software supports the following versions of TACACS e TACACS Terminal Access Controller Access Control System Provides password checking and authentication and notification of user actions for security purposes utilizing via one or more centralized TACACS servers utilizing the UDP protocol for packet transmission e Extended TACAC
174. no initial username or password Leave the Username and Password fields blank DES 3558 Fast Ethernet Switch Command Line Interface Firmware Build 1 00 B03 Copyright C 2000 2004 D Link Corporation All rights reserved UserName PassWord DES 3990 48 Figure 4 3 Command Prompt Note The first user automatically gets Administrator level privileges It is recommended to create at least one Admin level user account for the Switch 28 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Password Protection The DES 3550 does not have a default user name and password One of the first tasks when settings up the Switch is to create user accounts If you log in using a predefined administrator level user name you have privileged access to the Switch s management software After your initial login define new passwords for both default user names to prevent unauthorized access to the Switch and record the passwords for future reference To create an administrator level account for the Switch do the following 1 At the CLI login prompt enter create account admin followed by the user name and press the Enter key 2 You will be asked to provide a password Type the password used for the administrator account being created and press the Enter key 3 You will be prompted to enter the same password again to verify it Type the same password and press the Enter key 4 Successful creation of the new admin
175. nooping Tah 0 0 0 0 00 00 00 00 00 00 Non CQuerier Ports neee ds oe p hofia jiz jis fis fis foe fir fie fio fao fan faz fas faa fas 2222223332 fas 36 a7 fae fao jao jer jaz jaa jes jas jse 7 jse 9 jso Figure 8 15 IGMP Snooping Table The user may search the IGMP Snooping Table by VLAN ID VID by entering the VID in the top left hand corner and clicking Search The following field can be viewed Parameter Description VLAN ID The VLAN ID VID of the multicast group Multicast Group The IP address of the multicast group MAC Address The MAC address of the multicast group A read only field showing the status of the Querier State Disabled implies that the Switch is not transmitting IGMP Snooping Query packets while Enabled means those packets are being transmitted The total number of reports received for this group Port Map These are the ports where the IGMP packets were snooped are displayed Note To configure IGMP snooping for the DES 3350 go to the Configuration folder and select IGMP Configuration and other information concerning IGMP snooping may be found in Section 6 of this manual under Configuring IGMP 152 DES 3550 Layer 2 Fast Ethernet Switch User s Guide IGMP Snooping Forwarding This window will display the current IGMP snooping forwarding table entries currently configured on the Switch To view the following screen open the Monitoring folder and click
176. o expand the group in detail CS MS and CaS in this group are shown Configure Launch the web management to configure the Switch Property To pop up a window to display the group information amp Property E X Device Mame lfdefault 35 26 00 Module Mame Group Mac Address 00 19 72 35 26 00 Remote Part Mo po Local Port Mo Po Port Speed Po Close Java Applet window Figure 10 11 Property window 171 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Member Switch Icon Remove from group Property Figure 10 12 Right Clicking a Member icon The following options may appear for the user to configure Remove from group Remove a member from a group Configure Launch the web management to configure the Switch Property To pop up a window to display the device information Property xl Device Nama aetaur44 73 01 Module Mame DES 3526 L2 Switch Mac Address 00 00 00 44 73 01 Remote Port No 1 Local Port Mo 2 Port Speed O0 Full Close Java Applet window m m Figure 10 13 Property window 172 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Candidate Switch Icon Add to group Property Figure 10 14 Right Clicking a Candidate icon The following options may appear for the user to configure Add to group Add a candidate to a group Clicking this option will reveal the following screen for the user to enter a password
177. o fe lo o E E E E E E E E E CE Box E Ex E EBs CE EB E Es E Es TE Es E E Figure 8 17 VLAN Status window Browse Router Port This displays which of the Switch s ports are currently configured as router ports A router port configured by a user using the console or Web based management interfaces is displayed as a static router port designated by S A router port that is dynamically configured by the Switch 1s designated by D To view the following window open the Monitoring folder and click the Router port link otal Router Port Entries 1 WLAN Name default Static Router Port pee OB eB es p dodi jiz fis he ps ie ir fie jo o fi g2 fes fa fas as 7 be o o pi fz fps pe fes fe 57 fe bo ko jai jaz jes jes jas jas 07 jas jao 0 Dynamic Router Fort pee BB s sp dodi jiz jie he ps ie ir fie jo eo fi g2 fes fea fas as 7 ps bo bo 1 f2 fps pe fes fe 57 fe bo jo jan jaz jes jes jas jas CAMCN CR Figure 8 18 Router Port window 154 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Port Access Control The following section describes the 802 1X Status on the Switch To view the Authenticator state click Monitoring gt Port Access Control gt Authenticator State Authenticator State Authenticator Status of Port 1 ls ForceAuth SUCCESS Authorized Figure 8 19 Authenticator Status window This window displays the Authenticator Status for an individual port To select a port click a port on the front
178. od list The Switch has three built in Authentication Server Groups one for each of the TACACS XTACACS and TACACS protocols These built in Authentication Server Groups are used to authenticate users trying to access the Switch The users will set Authentication Server 117 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Hosts in a preferable order in the built in Authentication Server Groups and when a user tries to gain access to the Switch the Switch will ask the first Authentication Server Hosts for authentication If no authentication 1s made the second server host in the list will be queried and so on The built in Authentication Server Groups can only have hosts that are running the specified protocol For example the TACACS Authentication Server Groups can only have TACACS Authentication Server Hosts The administrator for the Switch may set up five different authentication techniques per user defined method list TACACS XTACACS TACACS local none for authentication These techniques will be listed in a preferred order and defined by the user for normal user authentication on the Switch and may contain up to eight authentication techniques When a user attempts to access the Switch the Switch will select the first technique listed for authentication If the first technique goes through its Authentication Server Hosts and no authentication is returned the Switch will then go to the next technique listed in the server gr
179. od or liquids on your system components and never operate the product in a wet environment If the system gets wet see the appropriate section in your troubleshooting guide or contact your trained service provider e Do not push any objects into the openings of your system Doing so can cause a fire or an electric shock by shorting out interior components e Use the product only with approved equipment e Allow the product to cool before removing covers or touching internal components e Operate the product only from the type of external power source indicated on the electrical ratings label If you are not sure of the type of power source required consult your service provider or local power company e To help avoid damaging your system be sure the voltage selection switch if provided on the power supply is set to match the power available at your location 115 volts V 60 hertz Hz in most of North and South America and some Far Eastern countries such as South Korea and Taiwan 100 V 50 Hz in eastern Japan and 100 V 60 Hz in western Japan 230 V 50 Hz in most of Europe the Middle East and the Far East e Also be sure that attached devices are electrically rated to operate with the power available in your location e Use only approved power cable s If you have not been provided with a power cable for your system or for any AC powered option intended for your system purchase a power cable that is approved for use in your co
180. on the Telnet application and the WEB HTTP application Login Method List Using the pull down menu configure an application for normal login on the user level utilizing a previously configured method list The user may use the default Method List or other Method List configured by the user See the Login Method Lists window in this section for more information Enable Method List Using the pull down menu configure an application for normal login on the user level utilizing a previously configured method list The user may use the default Method List or other Method List configured by the user See the Enable Method Lists window in this section for more information Click Apply to implement changes made Authentication Server Group Settings This window will allow users to set up Authentication Server Groups on the Switch A server group is a technique used to group TACACS XTACACS TACACS server hosts into user defined categories for authentication using method lists The user may define the type of server group by protocol or by previously defined server group The Switch has three built in Authentication Server Groups that cannot be removed but can be modified Up to eight 8 authentication server hosts may be added to any particular group 119 DES 3550 Layer 2 Fast Ethernet Switch User s Guide To view the following window click Management gt Access Authentication Control gt Authentication Server Group Adal Authent
181. ontent Mask to specify a mask to hide the content of the packet header Vlan Selecting this option instructs the Switch to examine the VLAN part of each packet header and use this as the or part of the criterion for forwarding 93 Type DES 3550 Layer 2 Fast Ethernet Switch User s Guide Source IP Mask Source IP Mask Enter an IP address mask for the source IP address Destination IP Mask mole IP Mask Enter an IP address mask for the destination IP Selecting this option instructs the Switch to examine the DiffServ Code part of each packet header and use this as the or part of the criterion for forwarding Selecting this option instructs the Switch to examine the protocol type value in each frame s header You must then specify what protocol s to include according to the following guidelines Select ICMP to instruct the Switch to examine the Internet Control Message Protocol ICMP field in each frame s header Select Type to further specify that the access profile will apply an ICMP type value or specify Code to further specify that the access profile will apply an ICMP code value Select IGMP to instruct the Switch to examine the Internet Group Management Protocol IGMP field in each frame s header Select Type to further specify that the access profile will apply an IGMP type value Select TCP to use the TCP port number contained in an incoming packet as the forwarding criterion Selecting TCP requires that you speci
182. oup for authentication until the authentication has been verified or denied or the list is exhausted Please note that users granted access to the Switch will be granted normal user privileges on the Switch To gain access to administrator level privileges the user must access the Enable Admin window and then enter a previously configured password set by the administrator of the Switch F tod NOTE TACACS XTACACS and TACACS are separate entities and are not compatible The Switch and the server must be configured exactly the P same using the same protocol For example if the Switch is set up for TACACS authentication so must the host server Policy amp Parameters This command will enable an administrator defined authentication policy for users trying to access the Switch When enabled the device will check the Login Method List and choose a technique for user authentication upon login To access the following window click Management Access Authentication Control Policy amp Parameters Policy 4 Parameters Setting f Authentication Folicy User atiempis 1 255 Figure 7 5 Policy amp Parameters Settings window The following parameters can be set Parameters Description Authentication Policy Use the pull down menu to enable or disable the Authentication Policy on the Switch Response Timeout 1 255 This field will set the time the Switch will wait for a response of authentication from the us
183. oupes 31 Forward Unregistered Groups EH Forward Unregistered Groups 33 Forward Unregistered Groupe 3d Forward Unregistered Groupes a Forward Unregistered Groups 3B Forward Unregistered Groups ER Forward Unregistered Groupe 3e Forward Unregistered Groupes 3 Forward Unregistered Groups 40 Forward Unregistered Groups 4l Forward Unregistered Groupe 42 Forward Unregistered Groupes q Forward Unregistered Groups 44 Forward Unregistered Groups 4 Forward Unregistered Groupe d Forward Unregistered Groupes zn Forward Unregistered Groups de Forward Unregistered Groups zb Forward Unregistered Groupe A Forvard Unregistered Groups Figure 6 16 Multicast Port Filtering Mode Setup and Multicast port Filtering Mode Table 59 DES 3550 Layer 2 Fast Ethernet Switch User s Guide The following parameters can be set Parameter Description These two drop down menus allow you to select a range of ports that the From To E filter settings will be applied to This drop down menu allows you to select the action the Switch will take when it receives a multicast packet that is to be forwarded to one of the ports in the range specified above Forward All Groups instructs the Switch to forward a multicast packet to all multicast groups residing within the range of ports specified above Forward Unregistered Groups instructs the Switch to forward a multicast packet whose destination is an unregistered multicast group residing within the range o
184. panel display A polling interval between and 60 seconds can be set using the drop down menu at the top of the window and clicking OK The information on this window 1s described as follows Parameter Description Auth PAE State The Authenticator PAE state value can be nitialize Disconnected Connecting Authenticating Authenticated Aborting Held Force Auth Force Unauth or N A N A Not Available indicates that the port s authenticator capability is disabled Backend State The Backend Authentication state can be Request Response Success Fail Timeout Idle Initialize or N A N A indicates that the port s authenticator capability is disabled Auth Controlled Port Status can be Authorized Unauthorized or N A 155 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Maintenance TFTP Services Switch History Ping Test Save Changes Reboot Services Logout TFTP Services Trivial File Transfer Protocol TFTP services allow the Switch s firmware to be upgraded by transferring a new firmware file from a TFTP server to the Switch A configuration file can also be loaded into the Switch from a TFTP server Switch settings can be saved to the TFTP server and a history log can be uploaded from the Switch to the TFTP server Download Firmware From TFTP Server To update the Switch s firmware open the TFTP Services folder in the Maintenance folder and click the Download Firmware from TFTP link Downlo
185. py filename means that optionally you can type copy followed by the name of the file Do not type the brackets Indicates a button a toolbar icon menu or menu item For example Open the File menu and choose Cancel Used for emphasis May also indicate system messages or prompts appearing on your screen For example You have mail Bold font is also used to represent filenames program names and commands For example use the copy command Boldface Typewriter Indicates commands and responses to prompts that must be typed Font exactly as printed in the manual Bold font e l Indicates a window name Names of keys on the keyboard have Initial capital letter inn l h initial capitals For example Click Enter Indicates a window name or a field Also can indicate a variable or parameter that is replaced with an appropriate word or string For example type filename means that you should type the actual filename instead of the word shown in italic Italics Menu Name gt Menu Option Indicates the menu structure Device gt Port gt Port Properties means the Port Properties menu option under the Port menu option that is located under the Device menu Menu Name gt Menu Option Notes Notices and Cautions F7 3 NOTE A NOTE indicates important information that helps you make l better use of your device a NOTICE A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid th
186. quired to correct the interference at his own expense CE Mark Warning This is a Class A product In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures Warnung Dies ist ein Produkt der Klasse A Im Wohnbereich kann dieses Produkt Funkstoerungen verursachen In diesem Fall kann vom Benutzer verlangt werden angemessene Massnahmen zu ergreifen Precauci n Este es un producto de Clase A En un entorno dom stico puede causar interferencias de radio en cuyo case puede requerirse al usuario para que adopte las medidas adecuadas Attention Ceci est un produit de classe A Dans un environnement domestique ce produit pourrait causer des interf rences radio auquel cas l utilisateur devrait prendre les mesures ad quates Attenzione Il presente prodotto appartiene alla classe A Se utilizzato in ambiente domestico il prodotto pu causare interferenze radio nel cui caso possibile che l utente debba assumere provvedimenti adeguati VCCI Warning Blk 72AATBSRIX T CT ERA MO 45 9 ERE es5 eicdc e O IRAE ST CKGBRENZCENHBVET BSMI Warning 23 1 AS 5 AAA E e Ee EAs ES CBS Ag A Be EE RESTER T Ere te hai D EHAA G A ee se nis 11 CONTENTS PREFACE lt lt iia VIII INTENDED READERS pi coo VIII TYPOGRAPHICAL CONVENTIONS eia ecee codecs estu coenae a tonta doo arae ce tob ede ee Eee ae napa cosnseasesestsccuebdaecuees st VIII NOTES NOTIC
187. reminded that without proper heat dissipation and air circulation system components might overheat which could lead to system failure Side Panel Description The right hand side panel of the Switch contains heat vents to dissipate heat Keep these openings clear of obstructions of up to six inches of space Failure to comply with this may result in the system overheating and eventually to a system failure oQDOn0DODOOoDODOODODDODOoOooDooO0DocDoOoODoooDooDooooocoodo oooooooooooooooooooogooooooooooooooooooooooooooQ oooonononocoongoooDnooooooooononooooooooDnoooooooooooocooo o O Q c oco0060005000006P50050050005060050050500605006000060006 0000000005000000500000000000000000500000000000000 caooGoooooocoooocoooooooooocooooooooooooooooooooooonoo o Figure 1 4 Side Panels Gigabit Combo Ports In addition to the 48 10 100 Mbps ports the Switch features two Gigabit Ethernet Combo ports These two ports are LOOOBASE T copper ports provided and Mini GBIC ports optional See the diagram below to view the two Mini GBIC port modules being plugged into the Switch Please note that although these two front panel modules can be used simultaneously the ports must be different The GBIC port will always have the highest priority 18 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Figure 1 5 Mini GBIC modules plug in to the Switch Figure 1 6 Installing the Mini GBIC Module 19 DES 3550 Layer 2 Fast Ethernet Switch
188. rise MIB as an extended Management Information Base The proprietary MIB may also be retrieved by specifying the MIB Object Identifier MIB values can be either read only or read write The DES 3550 incorporates a flexible SNMP management for the switching environment SNMP management can be customized to suit the needs of the networks and the preferences of the network administrator Use the SNMP V3 menus to select the SNMP version used for specific tasks The DES 3550 supports the Simple Network Management Protocol SNMP versions 1 2c and 3 The administrator can specify the SNMP version used to monitor and control the Switch The three versions of SNMP vary in the level of security provided between the management station and the network device 128 DES 3550 Layer 2 Fast Ethernet Switch User s Guide SNMP settings are configured using the menus located on the SNMP V3 folder of the web manager Workstations on the network that are allowed SNMP privileged access to the Switch can be restricted with the Management Station IP Address menu SNMP User Table The SNMP User Table displays all of the SNMP User s currently configured on the Switch In the SNMP V3 folder click on the SNMP User Table link This will open the SNMP User Table as shown below otal Entries 1 Note Insert a maximum of 10 entries into the table SHMP User Table initial initial 3 X Figure 7 20 SNMP User Table To delete
189. rk used as the primary path for transporting traffic between network segments bandwidth Information capacity measured in bits per second that a channel can transmit The bandwidth of Ethernet is 10Mbps the bandwidth of Fast Ethernet is 100Mbps baud rate The switching speed of a line Also known as line speed between network segments BOOTP The BOOTP protocol allows you to automatically map an IP address to a given MAC address each time a device 1s started In addition the protocol can assign the subnet mask and default gateway to a device bridge A device that interconnects local or remote networks no matter what higher level protocols are involved Bridges form a single logical network centralizing network administration broadcast A message sent to all destination devices on the network broadcast storm Multiple simultaneous broadcasts that typically absorb available network bandwidth and can cause network failure console port The port on the Switch accepting a terminal or modem connector It changes the parallel arrangement of data within computers to the serial form used on data transmission links This port is most often used for dedicated local management CSMA CD Channel access method used by Ethernet and IEEE 802 3 standards in which devices transmit only after finding the data channel clear for some period of time When two devices transmit simultaneously a collision occurs and the colliding devices delay their retransmi
190. rmation Base MIB which provides a standard presentation of the information controlled by the on board SNMP agent SNMP defines both the format of the MIB specifications and the protocol used to access this information over the network The DES 3550 supports the SNMP versions 1 2c and 3 You can specify which version of the SNMP you want to use to monitor and control the Switch The three versions of SNMP vary in the level of security provided between the management station and the network device 127 DES 3550 Layer 2 Fast Ethernet Switch User s Guide In SNMP v l and v 2 user authentication is accomplished using community strings which function like passwords The remote user SNMP application and the switch SNMP must use the same community string SNMP packets from any station that has not been authenticated are ignored dropped The default community strings for the Switch used for SNMP v 1 and v 2 management access are public Allows authorized management stations to retrieve MIB objects private Allows authorized management stations to retrieve and modify MIB objects SNMP v 3 uses a more sophisticated authentication process that 1s separated into two parts The first part is to maintain a list of users and their attributes that are allowed to act as SNMP managers The second part describes what each user on that list can do as an SNMP manager The Switch allows groups of users to be listed and configured with a shared set o
191. rms Tagging The act of putting 802 1Q VLAN information into the header of a packet Untagging The act of stripping 802 1Q VLAN information out of the packet header Ingress port A port on a switch where packets are flowing into the switch and VLAN decisions must be made 61 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Egress port A port on a switch where packets are flowing out of the switch either to another switch or to an end station and tagging decisions must be made IEEE 802 1Q tagged VLANs are implemented on the Switch 802 1Q VLANs require tagging which enables them to span the entire network assuming all switches on the network are IEEE 802 1 Q compliant VLANs allow a network to be segmented in order to reduce the size of broadcast domains All packets entering a VLAN will only be forwarded to the stations over IEEE 802 1Q enabled switches that are members of that VLAN and this includes broadcast multicast and unicast packets from unknown sources VLANs can also provide a level of security to your network IEEE 802 1Q VLANs will only deliver packets between stations that are members of the VLAN Any port can be configured as either tagging or untagging The untagging feature of IEEE 802 1Q VLANs allows VLANs to work with legacy switches that do not recognize VLAN tags in packet headers The tagging feature allows VLANSs to span multiple 802 1 Q compliant switches through a single physical conn
192. rname Firmware upgrade was unsuccessful Username successful login through Web Username Anonymous avstem started up Port 1 link up 100 hb Tbps FULL duplex spanning Tree Protocolis disabled Configuration saved to flash Username Anonymous epanning Tree Protocolis disabled parra Tree Protocolis enabled Port 11 link down euccesstullogin through Console Username Anonymous epanning Tree Protocolis disabled Console session timed out Username Anonymous Topology changed Topology changed spanning Tree Protocolis enabled euccesstullogin through Console Username Anonymous Clear Figure 9 5 Switch History window The Switch can record event information in its own logs to designated SNMP trap receiving stations and to the PC connected to the console manager Clicking Next at the bottom of the window will allow you to display all the switch Trap Logs The information is described as follows Parameter Description Sequence A counter incremented whenever an entry to the Switch s history log is made The table displays the last entry highest sequence number first Displays the time in days hours and minutes since the Switch was last restarted Log Text Displays text describing the event that triggered the history log entry Click Clear to clear the Switch History log Click Next to go to the next page of the Switch History Log Ping Test Ping 1s a small program that sends ICMP Echo packets to the
193. rotocol TACACS Enter this parameter if the server host utilizes the tacacs protocol Port 1 65535 Enter a number between 1 and 65535 to define the virtual port number of the authentication protocol on a server host The default port number is 49 for TACACS XTACACS TACACS servers but the user may set a unique port number for higher security Timeout 1 255 Enter the time in seconds the Switch will wait for the server host to reply to an authentication request The default value is 5 seconds 121 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Retransmit 1 255 Enter the value in the retransmit field to change how many times the device will resend an authentication request when the TACACS server does not respond Authentication key to be shared with a configured TACACS server only Specify an alphanumeric string up to 254 characters Click Apply to add the server host If F NOTE More than one authentication protocol can be run on the same physical server host but remember that TACACS XTACACS TACACS are separate entities and are not compatible with each other Login Method Lists This command will configure a user defined or default Login Method List of authentication techniques for users logging on to the Switch The sequence of techniques implemented in this command will affect the authentication result For example if a user enters a sequence of techniques for example TACACS XTACACS local the Sw
194. rs the Software will be free of physical defects D Link s sole obligation shall be to replace the non conforming Software or defective media with software that substantially conforms to D Link s functional specifications for the Software or to refund at D Link s sole discretion Except as otherwise agreed by D Link in writing the replacement Software is provided only to the original licensee and is subject to the terms and conditions of the license granted by D Link for the Software Software will be warranted for the remainder of the original Warranty Period from the date or original retail purchase If a material non conformance is incapable of correction or if D Link determines in its sole discretion that it is not practical to replace the non conforming Software the price paid by the original licensee for the non conforming Software will be refunded by D Link provided that the non conforming Software and all copies thereof is first returned to D Link The license granted respecting any Software for which a refund is given automatically terminates Non Applicability of Warranty The Limited Warranty provided hereunder for hardware and software of D Link s products will not be applied to and does not cover any refurbished product and any product purchased through the inventory clearance or liquidation sale or other sales in which D Link the sellers or the liquidators expressly disclaim their warranty obligation pertaining to the product and in
195. runking group on or off This is useful for diagnostics to quickly isolate a bandwidth intensive network device or to have an absolute backup aggregation group that is not under automatic control Master Port Choose the Master port for the trunk group Member Ports Choose the members of a trunked group Up to 8 ports per group can be assigned to a group 88 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Flooding Port A trunking group must designate one port to allow transmission of broadcasts and unknown unicasts Active Port Shows the port that is currently forwarding packets This pull down menu allows you to select between Static and LACP Link Aggregation Control Protocol LACP allows for the automatic detection of links in a Port Trunking Group After setting the previous parameters click Apply to allow your changes to be 1mplemented Successfully created trunk groups will be shown in the Current Link Aggregation Group Entries as seen in Figure 6 36 LACP Port The LACP Port Setting window is used in conjunction with the Link Aggregation window to create port trunking groups on the Switch Using the following window the user may set which ports will be active and passive in processing and sending LACP control frames 89 DES 3550 Layer 2 From A SO Poti y Port y Passive gt Apply Activity Passive Passive Passive Passive Passive Passive Passive Passive Passive Passive mee Of C
196. s Show Hide Check whether or not to display 64 65 127 128 255 256 511 512 1023 and 1024 1518 packets received Clear Clicking this button clears all statistics counters on this window View Table Clicking this button instructs the Switch to display a table rather than a line graph View Line Chart Clicking this button instructs the Switch to display a line graph rather than a table MAC Address This allows the Switch s dynamic MAC address forwarding table to be viewed When the Switch learns an association between a MAC address and a port number it makes an entry into its forwarding table These entries are then used to forward packets through the Switch To view the MAC Address forwarding table from the Monitoring menu click the MAC Address link 150 Tia FEL nai n I 2crT FTNarnar S Fra gt f ITICXIGGIHIel e I ASL L LUIICGCIIIU wu VLAN ID MAC Address Port MAC Address Table z mug E a a Iq O ja al al O MA a A O A pa Ml a Wop 00 00 00 44 73 01 00 00 00 44 F3 0 2 00 00 00 44 73 03 00 00 00 44 43 04 00 00 00 44 73 05 00 00 00 44 73 06 00 00 00 44 73 07 00 00 00 44 3 03 00 00 5 gt e 00 01 01 OO 00 e2 4f 57 03 DO DO e2 52 22 81 00 01 02 03 04 00 00 01 06 30 10 63 00 01 27 33 1 2 00 00 01 27 35 26 01 00 01 27 35 26 0 2 DO O1 30 12 13 02 00 01 30 83 29 D0 00 01 30 fa 5800 00 02 3871 38 ce Total Entries 382 00 00 00 00 00 00 Poti y View All Entry
197. s IN FIN e o e e Show AI Static VLAN Entries Figure 6 21 802 1Q Static VLANs Add To return to the Current 802 10 Static VLANs Entries window click the Show All Static VLAN Entries link To change an existing 802 1Q VLAN entry click the Modify button of the corresponding entry you wish to modify A new menu appears use this to configure the port settings and to assign a unique name and number to the new VLAN See the table below for a description of the parameters in the new menu 68 DES 3550 Layer 2 Fast Ethernet Switch User s Guide 802 10 Static VLAN Via FXEENFEEXNIZDNUDIDSG3 23 IB I I IB IB IB BIB ip IN IH IB IN IN I IN IB IB IN LM JM JM IM IM JM IM IM JM JM SEM JM JM IR JM JM IJ IM JM JE JM JE I JM fe fe fe fe fe fe fe fe fe fe fe fe fe fe te fe fe fe fe fe fe fe fe fe fe IM IM JM JM IN JM IM IM IM JM IM IM IM IE IE JM IN IN I eo sl slv JE JE JE JE JE 2E JE IRE LIE JE JE JE JE olol olol olol EE EEE EEE EE EEE Eee olg se s e e s pelele olol oleje aio Show All Static VLAN Entries Figure 6 22 802 1Q Static VLANs Entry Settings Modify The following fields can then be set in either the Add or Modify 802 1Q Static VLANs menus Parameter Description VID VLAN ID Allows the entry of a VLAN ID in the Add dialog box or displays the VLAN ID of an existing VLAN in the Edit dialog box VLANs can be
198. s equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help For detailed warranty outside the United States please contact corresponding local D Link office 191 tegister your product online at http support dlink com register Product registration is entirely voluntary and failure to complete or return this form will not diminish your warranty rights 192
199. s if offered with your system observe the following guidelines nstall the power supply before connecting the power cable to the power supply Unplug the power cable before removing the power supply If the system has multiple sources of power disconnect power from the system by unplugging all power cables from the power supplies e Move products with care ensure that all casters and or stabilizers are firmly connected to the system Avoid sudden stops and uneven surfaces A General Precautions for Rack Mountable Products Observe the following precautions for rack stability and safety Also refer to the rack installation documentation accompanying the system and the rack for specific caution statements and procedures Systems are considered to be components in a rack Thus component refers to any system as well as to various peripherals or supporting hardware CAUTION Installing systems in a rack without the front and side stabilizers installed could cause the rack to tip over potentially resulting in bodily injury under certain circumstances Therefore always install the stabilizers before installing components in the rack After installing system components in a rack never pull more than one component out of the rack on its slide assemblies at one time The weight of more than one extended component could cause the rack to tip over and may result in serious injury e Before working on the rack make sure that
200. s Guide 802 1p 0 7 Enter a value from 0 7 to specify that the access profile will apply only to packets with this 802 1p priority value Ethernet Type opecifies that the access profile will apply only to packets with this hexadecimal 802 1Q Ethernet type value hex 0x0 Oxffff in the packet header The Ethernet type value may be set in the form hex Ox0 Oxffff which means the user may choose any combination of letters and numbers ranging from a f and from 0 9999 vi To view the settings of a previously correctly configured rule click View in the Access Rule Table to view the following screen Access Rule Display Figure 6 49 Access Rule Display window Ethernet To configure the Access Rule for Packet Content Mask open the Access Profile Table figure 6 35 and click Modify for an Ethernet entry This will open the following screen Access Rule Table Permit Packet Content Mask 1 View Pid Figure 6 50 Access Rule Table Packet Content Mask To remove a previously created rule select it and click the Las button To add a new Access Rule click the Add button 100 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Access Rule Configuration 2 Permit Deny f Facket Content Mask E Replace Priority with yalue 18 31 sralue 32 47 y alue ds 63 value 79 FFEELEEELEEEEEEELTLE Figure 6 51 Access Rule Configuration Packet Content Mask To set the Access Rule for the Pac
201. s have their own corresponding LEDs The LED will Gigabit igh aia device h di Ports Ignt green when there Is a secure connection to a device trom the corresponding port This LED will blink when there is activity on the port One row of LEDs for each port is located above the ports on the front panel The first LED is for the top port and the second one is for the bottom ports The LED will light Port LEDs l l i green when there is a secure connection to a device from the corresponding port 17 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Rear Panel Description The rear panel of the Switch contains an AC power connector cd aren d ja Cz n VA COGS Figure 1 3 Rear panel view of the Switch The AC power connector is a standard three pronged connector that supports the power cord Plug in the female connector of the provided power cord into this socket and the male side of the cord into a power outlet The Switch automatically adjusts its power setting to any supply voltage in the range from 100 240 VAC at 50 60 Hz The rear panel also includes an outlet for an optional external power supply When power fails the optional external RPS will take over all the power immediately and automatically The rear panel contains two system fans The system fans are used to dissipate heat Do not block these openings and leave at least 6 inches of space at the rear and sides of the Switch for proper ventilation Be
202. s to be listed and configured with a shared set of privileges The SNMP version may also be set for a listed group of SNMP managers Thus you may create a group of SNMP managers that are allowed to view read only information or receive traps using SNMP v 1 while assigning a higher level of security to another group granting read write privileges using SNMP v 3 Using SNMP v 3 individual users or groups of SNMP managers can be allowed to perform or be restricted from performing specific SNMP management functions The functions allowed or restricted are defined using the Object Identifier OID associated with a specific MIB An additional layer of security is available for SNMP v 3 in that SNMP messages may be encrypted To read more about how to configure SNMP v 3 settings for the Switch read the section entitled Management Traps Traps are messages that alert network personnel of events that occur on the Switch The events can be as serious as a reboot someone accidentally turned OFF the Switch or less serious like a port status change The Switch generates traps and sends them to the trap recipient or network manager Typical traps include trap messages for Authentication Failure Topology Change and Broadcast Multicast Storm 30 DES 3550 Layer 2 Fast Ethernet Switch User s Guide MIBs Management and counter information are stored by the Switch in the Management Information Base MIB The Switch uses the standard MIB II Management
203. ssions for a random amount of time data center switching The point of aggregation within a corporate network where a switch provides high performance access to server farms a high speed backbone connection and a control point for network management and security Ethernet A LAN specification developed jointly by Xerox Intel and Digital Equipment Corporation Ethernet networks operate at IOMbps using CSMA CD to run over cabling Fast Ethernet 100Mbps technology based on the Ethernet CD network access method Flow Control IEEE 802 3z A means of holding packets back at the transmit port of the connected end station Prevents packet loss at a congested switch port forwarding The process of sending a packet toward its destination by an internetworking device Full duplex A system that allows packets to be transmitted and received at the same time and in effect doubles the potential throughput of a link Half duplex A system that allows packets to be transmitted and received but not at the same time Contrast with full duplex 181 IP address Internet Protocol address A unique identifier for a device attached to a network using TCP IP The address is written as four octets separated with full stops periods and is made up of a network section an optional subnet section and a host section IPX Internetwork Packet Exchange A protocol allowing communication in a NetWare network LAN Local Area Network A network of connected
204. st Ethernet Switch User s Guide Oversize Fra adi ment Jabber Drop Figure 8 9 Rx Error Analysis window table The following fields can be set Parameter Description Time Interval 1s Select the desired setting between 7s and 60s where s stands for seconds The default value is one second Record Number 200 Select number of times the Switch will be polled between 20 and 200 The default value is 20 Counts otherwise valid packets that did not end on a byte octet boundary The number of packets detected that are less than the minimum permitted packets size of 64 bytes and have a good CRC Undersize packets usually indicate collision fragments a normal network occurrence Counts packets received that were longer than 1518 octets or if a VLAN frame 1522 octets and less than the MAX PKT LEN Internally MAX PKT LEN is equal to 1522 The number of packets less than 64 bytes with either bad framing or an invalid CRC These are normally the result of collisions Jabber The number of packets with lengths more than the MAX PKT LEN bytes Internally MAX PKT LEN is equal to 1522 The number of packets that are dropped by this port since the last Switch reboot Show Hide Check whether or not to display CrcError UnderSize OverSize Fragment Jabber and Drop errors 146 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Clicking this button clears all statistics counters on this window Clicking
205. stem Log Server Index Server IP Shaw All System Los Servers Figure 6 54 System Log Servers Add The following parameters can be set Parameter Description index Syslog server settings index 1 4 The IP address of the Syslog server Severit This drop down menu allows you to select the level of messages that will be y sent The options are Warning Informational and All Some of the operating system daemons and processes have been assigned Facility values Processes and daemons that have not been explicitly assigned a Facility may use any of the local use facilities or they may use the user level Facility Those Facilities that have been designated are shown in the following Bold font means the facility values that the Switch currently supports now Facility 103 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Numerical Facility Code kernel messages user level messages mail system system daemons security authorization messages messages generated internally by syslog line printer subsystem network news subsystem UUCP subsystem clock daemon CO N Oo A OO N 0 security authorization messages FTP daemon NTP subsystem log audit log alert clock daemon local use 0 local0 local use 1 local1 local use 2 local2 local use 3 local3 local use 4 local4 local use 5 local5 local use 6 local6 local use 7 local7 UDP Port 514 or Type the
206. stination lies on another port found through a normal forwarding table lookup the Switch then looks to see if the other port Port 10 1s a member of VLAN 2 and can therefore receive VLAN 2 packets If Port 10 is not a member of VLAN 2 then the packet will be dropped by the Switch and will not reach its destination If Port 10 is a member of VLAN 2 the packet will go through This selective forwarding feature based on VLAN criteria is how VLANs segment networks The key point being that Port 1 will only transmit on VLAN 2 Network resources such as printers and servers however can be shared across VLANs This is achieved by setting up overlapping VLANs That is ports can belong to more than one VLAN group For example setting VLAN 1 members to ports 1 2 3 and 4 and VLAN 2 members to ports 1 5 6 and 7 Port 1 belongs to two VLAN groups Ports 8 9 and 10 are not configured to any VLAN group This means ports 8 9 and 10 are in the same VLAN group VLAN and Trunk Groups The members of a trunk group have the same VLAN setting Any VLAN setting on the members of a trunk group will apply to the other member ports E Note In order to use VLAN segmentation in conjunction with port trunk lj groups you can first set the port trunk group s and then you may L configure VLAN settings lf you wish to change the port trunk grouping with VLANs already in place you will not need to reconfigure the VLAN settings after changing the port trunk
207. t no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit no limit Figure 6 24 Bandwidth Settings and Port Bandwidth Table 42 DES 3550 Layer 2 Fast Ethernet Switch User s Guide The following parameters can be set or are displayed Parameter Description A consecutive group of ports may be configured starting with the selected From To port This drop down menu allows you to select between RX receive TX transmit and Both This setting will determine whether the bandwidth ceiling is applied to receiving transmitting or both receiving and transmitting packets This drop down menu allows you to specify that the selected port will have no bandwidth limit Enabled disables the limit This field allows you to enter the data rate in kb s that will be the limit for the selected port Click Apply to set the Bandwidth control for the selected ports Results of the Bandwidth Settings will be displayed in the Port Bandwidth Table SNTP Settings Current Time Settings To configure the time settings for the Switch open the Configuration folder then the SNTP fol
208. t Gateway VLAN Name Admin State The Switch will send out a BOOTP broadcast request when it is powered up The BOOTP protocol allows IP addresses network masks and default gateways to be assigned by a central BOOTP server If this option is set the Switch will first look for a BOOTP server to provide it with this information before using the default or previously entered settings The Switch will send out a DHCP broadcast request when it is powered up The DHCP protocol allows IP addresses network masks and default gateways to be assigned by a DHCP server If this option is set the Switch will first look for a DHCP server to provide it with this information before using the default or previously entered settings Allows the entry of an IP address Subnet Mask and a Default Gateway for the Switch These fields should be of the form xxx xxx xxx xxx where each xxx is a number represented in decimal form between 0 and 255 This address should be a unique address on the network assigned for use by the network administrator The fields that require entries under this option are as follows A Bitmask that determines the extent of the subnet that the Switch is on Should be of the form xxx xxx xxx xxx where each xxx is a number represented in decimal between O and 255 The value should be 255 0 0 0 for a Class A network 255 255 0 0 for a Class B network and 255 255 255 0 for a Class C network but custom subnet masks are allowed I
209. t to a group of ports on either a single switch in standalone mode or a group of ports on another switch in a switch stack Single IP This method of segmenting the flow of traffic is similar to using VLANs to limit traffic but 1s more restrictive It provides a method of directing traffic that does not increase the overhead of the Master switch CPU In the Configuration folder open the QoS folder and click Traffic Segmentation to view the screen shown below 82 DES 3550 Layer 2 Fa Lo o a Ee c e E pug pai is eS le e eat El a pa pa jes III III E IM IB IB E IH IB IB B IM IB IB IB IM IM IB 26 27 28 29 30 31 32 33 34 35 56 37 38 39 Q 4 42 43 44 45 4 47 49 3 IB IB IB IB IB IE IB IB IB SIE IE IB IE IB IE IB IB IN B IN IN IB IN IB Loa mE Be queue E pug pec pos prs a prs e prec eE penal paces eer rop pr IE IN NN NEN NN EB IN E NN EE IN EN NIE EE NN B EN EB E B IH IN IN IN Forward Portlist 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 4d 42 45 44 45 46 47 de p 30 JN IB IE IN GN JE IB IN B IE IN IB IM IB IM IB IB JM IB IM IN IM IM IB Apply Forward Porilist 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 30 1 30 1 50 1 50 1 50 1 50 1 50 1 50 1 30 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 1 50 D cO A La E oL br Figure 6 32 Traffic Segmentation Setting and Traffi
210. tacking connectivity and remove the distance barriers that typically limit your topology options when using other stacking technology Switches using Single IP Management labeled here as SIM must conform to the following rules gt SIM is an optional feature on the Switch and can easily be enabled or disabled through the Command Line Interface SIM grouping has no effect on the normal operation of the Switch in the user s network gt There are three classifications for switches using SIM The Commander Switch CS which is the master switch of the group Member Switch MS which is a switch that is recognized by the CS as a member of a SIM group and a Candidate Switch CaS which is a Switch that has a physical link to the SIM group but has not been recognized by the CS as a member of the SIM group gt A SIM group can only have one Commander Switch CS gt All switches in a particular SIM group must be in the same IP subnet broadcast domain Members of a SIM group cannot cross a router gt A SIM group accepts up to 32 switches numbered 0 31 including the Commander Switch numbered 0 gt There 1s no limit to the number of SIM groups in the same IP subnet broadcast domain however a single switch can only belong to one group gt If multiple VLANs are configured the SIM group will only utilize the default VLAN on any switch gt SIM allows intermediate devices that do not support SIM This enables the user to manage a switch t
211. the Configuration folder to bring up the Current Link Aggregation Group Entries table Port Link Aggregation Group Add New Link Aggregation Group H ee sroup Entries O RN HN TRUHE Enabled Modit Figure 6 36 Port Link Aggregation Group Entries window To configure port trunk groups click the Add button to add a new trunk group and use the menu Link Aggregation Group Configuration menu see example below to set up trunk groups To modify a port trunk group click the Modify button corresponding to the entry you wish to alter To delete a port trunk group click the corresponding under the Delete heading in the Current Link Aggregation Group Entries table 87 f mot TLl um RE L NCT Tf 3 0 FASI FILICIIl ed I AOt ELCIIVCUITI L wu gation Settings gation Settings 121324131210 03000099309339393 MMMM IO 26 J27 zs 29 fso fea s2 fas fa fos fes e7 jas jso jao fan jaz jas jaa jas faa e7 jae jav jso mj m mj mj mj mj m mj m O TIN Apply Note lt is only valid to set up at mast 8 member ports of any one trunk group and a part can be a member of only one trunk group at a Figure 6 38 Link Aggregation Group Configuration window Modify The user changeable parameters are as follows Parameter Description GroupID Select an ID number for the group between 1 and 6 Trunk groups can be toggled between Enabled and Disabled This is used to turn a port t
212. the applicable warranty period D Link will provide repair or replacement of the product D Link shall have the sole discretion whether to repair or replace and replacement product may be new or reconditioned Replacement product shall be of equivalent or better specifications relative to the defective product but need not be identical Any product or part repaired by D Link pursuant to this warranty shall have a warranty period of not less than 90 days from date of such repair irrespective of any earlier expiration of original warranty period When D Link provides replacement then the defective product becomes the property of D Link Warranty service may be obtained by contacting a D Link office within the applicable warranty period and requesting a Return Material Authorization RMA number Ifa Registration Card for the product in question has not been returned to D Link then a proof of purchase such as a copy of the dated purchase invoice must be provided If Purchaser s circumstances require special handling of warranty correction then at the time of requesting RMA number Purchaser may also propose special procedure as may be suitable to the case After an RMA number is issued the defective product must be packaged securely in the original or other suitable shipping package to ensure that it will not be damaged in transit and the RMA number must be prominently marked on the outside of the package The package must be mailed or otherwise shipp
213. the stabilizers are secured to the rack extended to the floor and that the full weight of the rack rests on the floor Install front and side stabilizers on a single rack or front stabilizers for joined multiple racks before working on the rack e Always load the rack from the bottom up and load the heaviest item in the rack first e Make sure that the rack is level and stable before extending a component from the rack e Use caution when pressing the component rail release latches and sliding a component into or out of a rack the slide rails can pinch your fingers Xl DES 3550 Layer 2 Fast Ethernet Switch User s Guide e After a component is inserted into the rack carefully extend the rail into a locking position and then slide the component into the rack e Do not overload the AC supply branch circuit that provides power to the rack The total rack load should not exceed 80 percent of the branch circuit rating e Ensure that proper airflow is provided to components in the rack e Do not step on or stand on any component when servicing other components in a rack NOTE A qualified electrician must perform all connections to DC power and to safety grounds All electrical wiring must comply with applicable local or national codes and practices CAUTION Never defeat the ground conductor or operate the equipment in the absence of a suitably installed ground conductor Contact the appropriate electrical inspection authority or an ele
214. this button instructs the Switch to display a table rather than a line graph Clicking this button instructs the Switch to display a line graph rather than a table Transmitted TX Click the Transmitted TX link in the Error folder of the Monitoring menu to view the following graph of error packets received on the Switch View Table 1000 ann ExDefer 200 LateCall Too ExcCall 500 aingcall 500 Call 400 300 200 100 Unitipacketisecs Time Interval Record Number Show Hide M ExDefer M LateColl Iv EsCall M SingColl M Coll Figure 8 10 Tx Error Analysis window line graph To view the Transmitted Error Packets Table click the link View Table which will show the following table 147 DES 3550 Layer 2 Fast Ethernet Switch User s Guide iew LineChart Packet Analysis ofPort1 Timelnterval al Max Rate Figure 8 11 Tx Error Analysis window table The following fields may be set or viewed Parameter Description Time Interval 1s Select the desired setting between 1s and 60s where s stands for seconds The default value is one second Record Number 200 Select number of times the Switch will be polled between 20 and 200 The default value is 20 Counts the number of packets for which the first transmission attempt on a particular interface was delayed because the medium was busy LateColl Counts the number of times that a collision is detected later than 512 bit times into the transm
215. tic Multicast Forwarding Table click the corresponding X under the Delete heading Click the Show AII Multicast Forwarding Entries link to return to the Static Multicast Forwarding Settings window Multicast Port Filtering The following figure and table describe how to set up Multicast forwarding on the Switch Open the Forwarding Filtering folder and click on the Multicast Port Filtering Mode Setup link to see the entry screen below 58 DES 3550 Layer 2 O ES Port Port Forward All Groups Apply 1 Forward Unregistered Groups 2 Forward Unregistered Groupe E Forward Unregistered Groups 4 Forward Unregistered Groups 5 Forward Unregistered Groups 6 Forward Unregistered Groupe 7 Forward Unregistered Groups amp Forward Unregistered Groups J Forward Unregistered Groups 10 Forward Unregistered Groupes 11 Forward Unregistered Groups 12 Forward Unregistered Groups 13 Forward Unregistered Groups 14 Forward Unregistered Groupe 15 Forward Unregistered Groups 16 Forward Unregistered Groups 17 Forward Unregistered Groups 18 Forward Unregistered Groupes 19 Forward Unregistered Groups 20 Forward Unregistered Groups 21 Forward Unregistered Groups ae Forward Unregistered Groupe 23 Forward Unregistered Groups 24 Forward Unregistered Groups oe Forward Unregistered Groupe 26 Forward Unregistered Groupe AT Forward Unregistered Groups E Forward Unregistered Groups 29 Forward Unregistered Groupe 30 Forward Unregistered Gr
216. time zones and Daylight Savings time settings for SNTP Open the Configuration folder then the SNTP folder and click on the Time Zone and DST link revealing the following screen 74 Lact Ly harna F fan T Fr Hh lc rc 211 re a FACT F IOrrnrneoj SI ITRN I IGOGF S 3l IInIo aye r Fast Elnernet owltcn User s aulae lime Zone and DST Settings Daylight Saving Time State Disabled Daylight Saving Time Offset in Minutes bl T ime Zone Offset from GMT in HH MM id M OU y 00 DST Repeating Settings From Which Day From Day of Week From Month Fromctime in HH MI o Which Day o lay of Week o Month atime in HH MMM DST Annual Settings From Month From Day Fromctime in HH WM o Month o Time in HH MM Figure 6 26 Time Zone and DST Settings Page The following parameters can be set Parameter Description Em saving dime Use this pull down menu to Enable or Disable the DST Settings Daylight Saving Time Use this pull down menu to specify the amount of time that will constitute Offset in Minutes your local DST offset 30 60 90 or 120 minutes Time Zone Offset from GMT in HH MM Use these pull down menus to specify your local time zone s offset from Greenwich Mean Time GMT Using repeating mode will enable DST seasonal time adjustment Repeating mode requires that the DST beginning and ending date be specified using a formula For example specif
217. tion to be used for the switching decision TCP IP A layered set of communications protocols providing Telnet terminal emulation FTP file transfer and other services for communication among a wide range of computer equipment telnet A TCP IP application protocol that provides virtual terminal service letting a user log in to another computer system and access a host as if the user were connected directly to the host TFTP Trivial File Transfer Protocol Allows you to transfer files such as software upgrades from a remote device using your switch s local management capabilities UDP User Datagram Protocol An Internet standard protocol that allows an application program on one device to send a datagram to an application program on another device VLAN Virtual LAN A group of location and topology independent devices that communicate as if they are on a common physical LAN VLT Virtual LAN Trunk A Switch to Switch link which carries traffic for all the VLANs on each Switch VT100 A type of terminal that uses ASCII characters VT100 screens have a text based appearance 183 D Link Offices Australia Brazil Canada Chile China Denmark D Link Australasia 1 Giffnock Avenue North Ryde NSW 2113 Sydney Australia TEL 61 2 8899 1800 FAX 61 2 8899 1868 TOLL FREE Australia 1300 766 868 TOLL FREE New Zealand 0800 900900 URL www dlink com au E MAIL support dlink com au 6 info dlink com au D Link Br
218. to O then it will continue processing the packets from this CoS until there are no more packets for this CoS The other CoS queues that have been given a nonzero value and depending upon the weight will follow a common weighted round robin scheme Remember that the DES 3550 has 4 priority queues and four Classes of Service for each port on the Switch 78 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Traffic Control Use the Traffic Control menu to enable or disable storm control and adjust the threshold for multicast and broadcast storms as well as DLF Destination Look Up Failure Traffic control settings are applied to individual Switch modules To view the following window Open the QoS folder and click the Traffic control link raffic Control Sett Destination Disabled r Enabled y Enabled Apply ic Control Inform Group ports re storm Por MUN Lookup Threshold Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled T abled Disabled Disabled Disabled Disabled Disabled Disabled Disabled 125 128 128 123 128 128 128 128 Figure 6 28 Traffic Control Settings and Traffic Control Table window Traffic or storm control is used to stop broadcast multicast or ARP request storms that may result when a loop is created The Destination Look Up Failure control is a method of shutting down
219. tory defaults E NOTE Only the Reset System option will enter the factory default eu parameters into the Switch s non volatile RAM and then restart the Jtr Switch All other options enter the factory defaults into the current a configuration but do not save this configuration Reset System will return the Switch s configuration to the state it was when it left the factory Reset gives the option of retaining the Switch s User Accounts and History Log while resetting all other configuration parameters to their factory defaults If the Switch is reset with this option enabled and Save Changes is not executed the Switch will return to the last saved configuration when rebooted switch will be reset all except IP address user account and history log Are you sure you want to proceed with a reset If ves click the Apply bution Apply Figure 9 10 Reset window In addition the Reset System option is added to reset all configuration parameters to their factory defaults save these parameters to the Switch s non volatile RAM and then restart the Switch This option is equivalent to Reset Config above followed by Save Changes 161 DES 3550 Layer 2 Fast Ethernet Switch User s Guide switch will be reset to factory defaults and reboot Are vou sure you want to proceed with a reset If ves click the Apply bution Apply Figure 9 11 Reset System window The Reset Config option will reset all of the Swit
220. tween group specific query messages including those sent in response to leave group messages Default 1 This is the maximum amount of time in seconds allowed for a host to continue membership in a multicast group without the Switch receiving a host membership report Default 260 This is the maximum amount of time in seconds a route is kept in the forwarding table without receiving a membership report Default 260 This specifies the maximum amount of time in seconds between the Switch receiving a leave group message from a host and the Switch issuing a group membership query If no response to the membership query is received before the Leave Timer expires the multicast forwarding entry for that host is deleted Choose Enabled to enable transmitting IGMP Query packets or Disabled to disable The default value is Disabled Select Enabled to implement IGMP Snooping This field is Disabled by default Click Apply to implement the new settings Click the Show All IGMP Group Entries link to return to the Current IGMP Snooping Group Entries window Static Router Ports A static router port 1s a port that has a multicast router attached to it Generally this router would have a connection to a WAN or to the Internet Establishing a router port will allow multicast packets coming from the router to be propagated through the network as well as allowing multicast messages IGMP coming from the network to be propagated to the router
221. u to reauthenticate a port or group of ports by choosing a port or group of ports by using the pull down menus From and To and clicking Apply The Reauthenticate Port Table displays the current status of the reauthenticated port s once you have clicked Apply Click Reauthenticate Port s on the PAE Access Entity folder on the Configuration menu to open the Reauthenticate Port s window Reauthenticate Port Pori E Apply Reauthenticate Port T Authorized N A N A both Authorized N A HA both Authorized N A N A both Authorized N A HA both Authorized N A N A both Authorized N A HE both Authorized N A N A both Authorized Figure 6 62 Reauthenticate Port and Reauthenticate Port Table window This window displays the following information Parameter Description 112 fy PQ j sit nah J a Jn ria gt rel 5 DES 3550 Layer 2 Fast Ethernet Switch User s Guide MAC Address Displays the physical address of the Switch where the port resides The Authenticator State will display one of the following nitialize Disconnected Connecting Authenticating Authenticated Aborting Held ForceAuth ForceUnauth and N A BackendState The Backend State will display one of the following Request Response Success Fail Timeout Idle Initialize and N A OpenDir Operational Controlled Directions are both and in PortStatus The status of the controlled port can be authorized unauthorized or N A RADIUS Server
222. untry The power cable must be rated for the product and for the voltage and current marked on the product s electrical ratings label The voltage and current rating of the cable should be greater than the ratings marked on the product e To help prevent an electric shock plug the system and peripheral power cables into properly grounded electrical outlets These cables are equipped with three prong plugs DES 3550 Layer 2 Fast Ethernet Switch User s Guide to help ensure proper grounding Do not use adapter plugs or remove the grounding prong from a cable If you must use an extension cable use a 3 wire cable with properly grounded plugs e Observe extension cable and power strip ratings Make sure that the total ampere rating of all products plugged into the extension cable or power strip does not exceed 80 percent of the ampere ratings limit for the extension cable or power strip e To help protect your system from sudden transient increases and decreases in electrical power use a surge suppressor line conditioner or uninterruptible power supply UPS e Position system cables and power cables carefully route cables so that they cannot be stepped on or tripped over Be sure that nothing rests on any cables e Do not modify power cables or plugs Consult a licensed electrician or your power company for site modifications Always follow your local national wiring rules e When connecting or disconnecting power to hot pluggable power supplie
223. va Runtime Environment on your server and lead you to the topology window as seen below File Group Device View Help Remote port Mac Address Model name default 3 04 00 00 01 02 03 04 00 DES 3550 L3 Sw d efault 44 73 01 100 Full 00 00 00 44 73 01 DES 3550 L2 Sw 100 Full 00 01 35 26 50 99 DES 3550 L2 Sw Gigabit F ull 00 35 25 50 85 7 7 DES 3550 L2 Sw 100 Full D0 01 27 35 25 04 DES 3550L2 Sw GigabitF ull 00 01 27 35 26 05 DES 3550 L2 Sw 1 00 Full 00 00 00 44 73 08 DES 3550 L2 Sw default35 26 03 100 Full D0 01 27 35 25 03 DES 3550 L2 Sw amp default44 73 06 amp default35 26 04 Figure 10 4 Single IP Management window Tree View The Tree View window holds the following information under the Data tab Parameter Description Device Name This field will display the Device Name of the switches in the SIM group configured by the user If no Device Name is configured by the name it will be given the name default and tagged with the last six digits of the MAC Address to identify it Local Port Displays the number of the physical port on the CS that the MS or CaS is connected to The CS will have no entry in this field Displays the connection speed between the CS and the MS or CaS Remote Port Displays the number of the physical port on the MS or CaS that the CS is connected to The CS will have no entry in this field MAC Address Displays the MAC Address of the
224. ve an identical make model or part D Link may in its sole discretion replace the defective Hardware or any part thereof with any reconditioned product that D Link reasonably determines is substantially equivalent or superior in all material respects to the defective Hardware Repaired or replacement Hardware will be warranted for the remainder of the original Warranty Period from the date of original retail purchase If a material defect is incapable of correction or if D Link determines in its sole discretion that it is not practical to repair or replace the defective Hardware the price paid by the original purchaser for the defective Hardware will be refunded by D Link upon return to D Link of the defective Hardware All Hardware or part thereof that is replaced by D Link or for which the purchase price is refunded shall become the property of D Link upon replacement or refund Limited Software Warranty D Link warrants that the software portion of the product Software will substantially conform to D Link s then current functional specifications for the Software as set forth in the applicable documentation from the date of original retail purchase of the Software for a period of ninety 90 days Warranty Period provided that the Software is properly installed on approved hardware and operated as contemplated in its documentation D Link further warrants that during the Warranty Period the magnetic media on which D Link delive
225. w dlink no D Link Russia 129626 Russia Moscow Graphskiy per 14 floor 6 TEL FAX 7 095 744 00 99 URL www dlink ru E MAIL vi dlink ru D Link International 1 International Business Park 03 12 The Synergy Singapore 609917 TEL 65 6774 6233 FAX 65 6774 6322 E MAIL info dlink com sg URL www dlink intl com D Link South Africa Einstein Park II Block B 102 106 Witch Hazel Avenue Highveld Technopark Centurion Gauteng Republic of South Africa TEL 27 12 665 2165 FAX 27 12 665 2186 URL www d link co za E MAIL attie d link co za D Link Iberia S L Sabino de Arana 56 bajos 08028 Barcelona Spain TEL 34 93 409 0770 FAX 34 93 491 0795 URL www dlink es E MAIL info dlink es D Link Sweden P O Box 15036 S 167 15 Bromma Sweden TEL 46 8 564 61900 FAX 46 8 564 61901 URL www dlink se E MAIL info dlink se D Link Taiwan 2F No 119 Pao chung Road Hsin tien Taipei Taiwan TEL 886 2 2910 2626 FAX 886 2 2910 1515 URL www dlinktw com tw E MAIL dssqa dlinktw com tw 186 Turkey U A E U K U S A D Link Turkiye Beybi Giz Plaza Ayazaga Mah Meydan Sok No 28 Maslak 34396 Istanbul Turkiye TEL 90 212 335 2553 direct amp 90 212 335 2525 pbx FAX 90 212 335 2500 E MAIL dlinkturkey dlink me com E MAIL support dlink me com D Link Middle East FZCO P O Box18224 R 8 Warehouse UB 5 Jebel Ali Free Zone Dubai United Arab Emirates TEL Jebel Ali 971 4 883 4234 FAX Je
226. w password New Local Enabled Enter the new password that you wish to set on the Switch to authenticate users attempting to access Administrator Level privileges on the Switch The user may set a password of up to 15 characters Confirm Local Confirm the new password entered above Entering a different password Enabled here from the one set in the New Local Enabled field will result in a fail message Enable Admin This window is for users who have logged on to the Switch on the normal user level and wish to be promoted to the administrator level After logging on to the Switch users will have only user level privileges To gain access to administrator level privileges the user will open this window and will have to enter an authentication password Possible authentication methods for this function include TACACS XTACACS TACACS user defined server groups local enable local account on the Switch or no authentication none Because XTACACS and TACACS do not support the enable function the user must create a special account on the server host which has the username enable and a password configured by the administrator that will support the enable function This function becomes inoperable when the authentication policy is disabled To view the following window click Management gt Access Authentication Control gt Enable Admin 126 DES 3550 Layer 2 Fast Ethernet Switch User s Guide Enable Admin Click Enable Admin
227. y to begin DST on Saturday during the second week of April and end DST on Sunday during the last week of October From Which Day ta be From Which Week Enter the week of the month that DST will DST Repeating Settings 75 DES 3550 Layer 2 Fast Ethernet Switch User s Guide From Day of Week Enter the day of the week that DST will start on From Month Enter the month DST will start on From time in HH MM Enter the time of day that DST will start on To Which Day e be be To Which Week Enter the week of the month the DST will To Day of Week Enter the day of the week that DST will end To Month Enter the month that DST will end To time in HH MM Enter the time DST will end Using annual mode will enable DST seasonal time adjustment Annual mode DST Annual Settings requires that the DST beginning and ending date be specified concisely For example specify to begin DST on April 3 and end DST on October 14 From Month Enter the month DST will start on each year Enter the day of the week DST will start on each year From Time in HH MM Enter the time of day DST will start on each year To Month Enter the month DST will end on each year Enter the day of the week DST will end on each year To Time in HH MM Enter the time of day that DST will end on each year Click Apply to implement changes made to the Time Zone and DST window Port Security A given port s or a range of ports dynamic MAC address le

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