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3Com 2816-SFP Plus (3C16485) Switch User Manual

1. Back Finish Cancel 4 Click on Finish to launch a web browser and display the login page for the Switch lt Back Conc PROBLEM SOLVING Refer to the information about LEDs given earlier in this guide to see if the problem can be identified and rectified Here are some common problems that can occur A link is connected but the Link Activity Status LED for the port does not light There is a problem with this connection Check that The device being connected to is powered on and operating correctly The cable is connected at both ends The cable is not damaged If the connection is to a workstation that the workstation s network interface is installed and configured correctly The correct category of cable is being used for the required link speed Category 3 cable can be used for 10BASE T operation only Category 5 cable is required for 100BASE TX or 1000BASE T 3Com recommends Category 5e or 6 cable for LOOOBASE T operation A fiber cable is connected but the Module Active LED does not light Check that The Receive RX and Transmit TX cable connectors are not swapped The fiber cable is in good condition The SFP module is correctly inserted 41 m A 3Com SFP module is being used Refer to Approved SFP Transceivers on page 14 for details m The equipment at the far end is installed and correctly configured The Link Activity LED is lit but the network performance of the Switch
2. Spanning Tree BPDU s This allows you to forward or block and discard the 802 1D spanning tree BPDU packets Forward spanning tree packets guration nitoring System Tools Support m Forward Spanning tree BPDU packets received on a port are forwarded to all other ports m Block and Discard Spanning tree BPDUs received on a port are dropped The Switch does not forward BPDUs to other ports The Switch does not participate as a bridge node in the spanning tree it can only be configured to forward or block spanning tree BPDUs If the Switch is connected to other bridging devices such as switches that are part of the spanning tree network set the Switch to Forward If the Switch is connected only to workstations it can be set to Block and Discard 802 1p Prioritization The Switch has priority queuing enabled which means all packets that are received are examined to see if they have been priority encoded If a packet has been priority encoded then the Switch will read the priority level and determine whether the packet should be directed through the normal or high priority channel This feature can be useful for example during excessive loads when one type of traffic may require priority over another The Switch is configured to comply with 802 1p VLAN tagged frames Traffic prioritization ensures that high priority data is forwarded through the Switch without being delayed by lower pr
3. http emea 3com com support email html Puerto Rico 1 800 998 2112 Salvador AT amp T 800 998 2112 Trinidad and Tobago 1 800 998 2112 Uruguay AT amp T 800 998 2112 Venezuela AT amp T 800 998 2112 Virgin Islands 57 1 657 0888 Country Telephone Number You can also obtain support in this region using the following Spanish speakers enter the URL http lat 3com com lat support form html Portuguese speakers enter the URL http lat 3com com br support form html English speakers in Latin America should send e mail to lat_support_anc 3com com US and Canada Telephone Technical Support and Repair 1 800 876 3266 GLOSSARY 10BASE T The IEEE specification for 10 Mbps Ethernet over Category 3 4 or 5 twisted pair cable 100BASE TX The IEEE specification for 100 Mbps Fast Ethernet over Category 5 twisted pair cable 1000BASE LX IEEE 802 3z specification for Gigabit Ethernet over 9 125 micron core single mode fiber cable 1000BASE SX IEEE 802 3z specification for Gigabit Ethernet over two strands of 50 125 or 62 5 125 micron core multimode fiber cable 1000BASE T IEEE 802 3ab specification for Gigabit Ethernet over 100 ohm Category 5 5e or 6 twisted pair cable using all four wire pairs Auto negotiation Auto negotiation is where two devices sharing a link automatically configure to use the best common speed The order of preference best first is LOOOBASE T full duplex 100BASE TX full dup
4. 3 conductor The cord set must have a rated current capacity of at least 10 A The attachment plug must be an earth grounding type with a NEMA 5 15P 15 A 125 V or NEMA 6 15P 15 A 250 V configuration The supply plug must comply with Section 107 2 D1 Stan dard DK2 1a or DK2 5a The supply plug must comply with SEV ASE 1011 The supply plug must comply with BS1363 3 pin 13 amp and be fitted with a 5 A fuse which complies with BS1362 The mains cord must be lt HAR gt or lt BASEC gt marked and be of type HO3VVF3GO 75 minimum The supply plug must comply with CEE7 7 SCHUKO The mains cord must be lt HAR gt or lt BASEC gt marked and be of type HO3VVF3GO 75 minimum L INFORMATION DE SECURITE IMPORTANTE AN Veuillez lire fond l information de la s curit suivante connexion portant l appellation Neutre et avec raccordement avant d installer le Baseline Switch 2816 SFP Plus direct a la terre masse Cordon lectrique AVERTISSEMENT Linstallation et la d pose de ce groupe II doit tre agr dans le pays d utilisation doivent tre confi s a un personnel qualifi 2 Etats Unis et m Le cordon doit avoir recu I homologation des UL et un certifi m Si vous entassez l unit Switch avec les unit s SuperStack 3 Canada cat de la CSA Hub l unit Baseline Switch 2816 SFP Plus doit tre install e m Le cordon souple doit respecter titre minimum les sp cifica Frs z F tions suivant
5. VLANs 29 Membership VLANs 29 Trunking 30 Traffic Monitoring 32 System Tools 32 Restart 32 Configuration 33 Upgrade 33 Spanning Tree 35 802 1p Prioritization 36 Support 37 Using Discovery Running the Discovery Application 39 Windows Installation 95 98 XP 2000 2003 Server NT Problem Solving Safety Information L INFORMATION DE SECURITE IMPORTANTE WICHTIGE SICHERHEITSINFORMATIONEN Technical Information Related Standards 49 Environmental 49 Physical 49 Electrical 49 Technical Support Where To Go For Help 51 Register Your Product to Gain Service Benefits 51 Purchase Value Added Services 51 Troubleshoot Online 51 Purchase Value Added Services 51 Contact Us 51 Telephone Technical Support and Repair 52 Glossary Index Regulatory Notices ABOUT THIS GUIDE gt This guide is intended for use by those responsible for installing and setting up network equipment consequently it assumes a basic working knowledge of LANs Local Area Networks If a release note is shipped with this 3Com Baseline Switch 2816 SFP Plus and contains information that differs from the information in this guide follow the information in the release note Most user guides and release notes are available in Adobe Acro bat Reader Portable Document Format PDF on the 3Com World Wide Web site http www 3com com Naming Convention Throughout this guide the 3Com Baseline Switch 2816 SFP Plus is referred to as the Switch Ca
6. addressed devices An IP address consists of 32 bits divided into two or three fields a network number and a host number or a network number a subnet number and a host number 57 IP Address ISP 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 periods full stops and is made up of a network section an optional subnet section and a host section Intemet Service Provider An ISP is a business that provides connectivity to the Internet for individuals and other businesses or organizations Local Area Network A network of end stations such as PCs printers servers and network devices hubs and switches that cover a relatively small geographic area usually not larger than a floor or building LANs are characterized by high transmission speeds over short distances up to 1000 metres Layer 2 Data Link layer in the ISO 7 Layer Data Communications Protocol This is related directly to the hardware interface for the network devices and passes on traffic based on MAC addresses Link Aggregation MAC See Trunking Media Access Control A protocol specified by the IEEE for determining which devices have access to a network at any one time MAC Address Media Access Control Address Also called the hardware physical or Ethernet address A layer 2 address associated with a particular network device Most devices that conn
7. has 16 10 100 1000 Mbps auto negotiating ports E Each port supports automatic M DI M DI X detection and can be connected to either a 10BASE T LOOBASE TX or a LOOOBASE T device Front Panel Features Ports 1 to 16 are auto negotiating their speed and duplex mode 1 RJ 45 10 100 1000 Ports half duplex or full duplex for 10BASE T and 100BASE TX full WARNING RJ 45 Ports These are shielded RJ 45 data sockets duplex only for 1000BASE T are automatically determined by the They cannot be used as standard traditional telephone sockets capabilities of the connected device or to connect the unit to a traditional PBX or public telephone network Only connect RJ 45 data connectors network telephony systems or network telephones to these sockets Either shielded or unshielded data cables with shielded or unshielded jacks can be connected to these data sockets CAUTION The Switch supports full duplex auto negotiation If 3 Link Activity Status LEDs AN auto negotiation is disabled for LOOOBASE T then the Switch uses the forced mode default of 100 full duplex mode If the The following table lists LEDs visible on the front of the Switch connected device does not support auto negotiation the Switch and how to read their status according to color will operate in half duplex mode even if the attached device is operating in full duplex mode In such a configuration you may Status Meaning notice some degradation of netwo
8. mounting kit supplied Electrical Power Inlet AC Line Frequency Input Voltage Current Rating Maximum Power Consumption Maximum Power Dissipation IEC 320 47 63 Hz 100 240 VAC 1 Amp maximum 60 W 184 3 BTU hr TECHNICAL SUPPORT Where To Go For Help Contact your authorised 3Com reseller or 3Com for additional product and support information You will find support tools posted on the 3Com web site at www 3com com Register Your Product to Gain Service Benefits To take advantage of warranty and other service benefits you must first register your product at http eSupport 3com com 3Com eSupport services are based on accounts that you create or have authorization to access First time users must apply for a user name and password that provides access to a number of eSupport features including Product Registration Repair Services and Service Request Purchase Value Added Services To enhance response times or extend warranty benefits contact 3Com or your authorized 3Com reseller Value added services can include 24x7 telephone technical support software upgrades onsite assistance or advance hardware replacement Experienced engineers are available to manage your installation with minimal disruption to your network Expert assessment and implementation services are offered to fill resource gaps and ensure the success of your networking projects More information on 3Com Extended Warranty and Pro
9. on the network refer to Using Discovery on page 39 You must recover the Switch using the recovery button on the rear panel of the Switch CAUTION Before recovering the Switch save the Switch s current configuration Recovering the Switch will cause the current configuration to be lost To recover the Switch Backup the current configuration Refer to Configuration on page 33 for details Turn off the Switch Press and hold in the recovery button on the rear panel of the Switch using a pointed tool and then turn on the Switch After at least 5 seconds or when the LED flashes release the recovery button The Switch will now enter fail safe mode whereby the Switch s IP address user name and password will be reset to the factory defaults Click on the RESTART THE SWITCH button Restore the configuration file that you backed up in step 1 Refer to Configuration on page 33 for details If the problem persists If the problem persists and the unit still does not operate successfully contact your supplier with the following information before returning the unit m Product number and serial number printed on a label supplied with the unit m A brief description of the fault SAFETY INFORMATION AN Please read the following safety information carefully before installing the Baseline Switch 2816 SFP Plus WARNING Installation and removal of the unit must be carried out by qualified per
10. simple VLAN Configuration on your Switch using desktop connections If you want to add ports 7 8 and 16 to VLAN2 as shown in Figure 12 so that the ports on the default VLAN1 and the ports on VLAN2 cannot communicate with each other do the following 1 Use the Create VLANs screen Figure 14 to create VLAN2 and assign a name to it VLAN1 is the default VLAN and already exists 26 In the Modify VLANs screen Figure 16 select Desktop from the Mode drop down list for port 7 Repeat step 2 for ports 8 and 16 In the Modify VLANs screen select 2 from the VLAN ID drop down list for port 7 Repeat step 4 for ports 8 and 16 Ports 7 8 and 16 now belong to VLAN2 and will not communicate with any other ports until you add another port to the VLAN or change the port configuration Uplink VLAN Configuration Example Figure 13 Uplink VLAN Configuration Example Endstation in VLAN 1 Desktop D Server in VLAN 1 Desktop Endstation in VLAN 2 Desktop Switch 1 Port 16 in VLANs 1 and 2 Uplink Switch 2 Port 8 in VLANs 1 and 2 Uplink Endstation lt in VLAN 2 Desktop Server in VLAN 2 Desktop Endstation in VLAN 1 Desktop This example explains how you can set up a VLAN Configuration across two Switches using Uplink connections This enables ports that are members of the same VLAN but which are on different switches to communicate provided that a port on eac
11. unit or stack Power Up Use the following sequence to power up the Switch Check the network connections and cables Connect the power supply cable to the appropriate power socket on the rear panel of the unit refer to Power Supply on page 11 Connect the plug to the power supply outlet socket and switch on the power supply at the socket When the Switch is powered on the Power LED should light up If it is not refer to Power LED on page 11 Spot Checks At frequent intervals you should visually check the Switch Regular checks can give you an early warning of a possible failure any problems can then be attended to when there will be least effect on users Check the following Cabling Check that all external cabling connections are secure and that no cables are pulled taut Cooling fan Where possible check that the cooling fan is operating by listening to the unit The fan is fitted near to the front right hand side of the unit when viewed from the front If you experience any problems operating the Switch refer to Problem Solving on page 41 Connecting to a Network Device To connect a device to the Switch use Category 5 unshielded or shielded screened 100 Ohm TP cable or Category 3 cable for a 10 Mbps connection The maximum length of cable for each connection is 100 m 328 ft Connect one end of the cable to an RJ 45 port on the Switch and the other end to the appropriate RJ 45 por
12. 16 on the Switch When an SFP port may be that the unit or the device connected to the port is is active it has priority over the 10 100 1000 port of the same faulty Contact your supplier for further advice number The corresponding 10 100 1000 port is disabled when an SFP transceiver is plugged in 10 4 Module Active LEDs The Module Active LEDs shows the status of any SFP modules that are installed Status Meaning Green Fiber SFP is inserted in the slot Off No fiber SFP is inserted in the slot 5 Port Duplex LEDs The second and fourth bottom row of Status LEDs which are colored yellow show the duplex status of the related ports Status Meaning Off No link not yet negotiated or the port is operating in half duplex mode Yellow The port is operating in full duplex mode 6 Power LED The Power LED shows the power status of the Switch Status Meaning Green The unit is powered on and ready for use Off m The unit is not receiving power m Check that the power cord is connected correctly m If the unit still does not operate contact your supplier 11 Status Meaning Flashing m Power on self test is in progress Green Yellow m Power on self test or loopback test failed Switch is in fail safe mode 7 Self adhesive Pads The unit is supplied with four self adhesive rubber pads Do not apply the pads if you intend to rack mount the unit gt If the unit is to be part of a free s
13. 3Com Baseline Switch 2816 SFP Plus 3C16485 User Guide DUA1648 5AAA02 com Copyright 3Com Technologies 2004 All rights reserved No part of this documentation may be reproduced in any form or by any means or used to make any derivative work such as translation transformation or adaptation without written permission from 3Com Technologies 3Com Technologies reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Technologies to provide notification of such revision or change 3Com Technologies provides this documentation without warranty of any kind either implied or expressed including but not limited to the implied warranties of merchantability and fitness for a particular purpose 3Com may make improvements or changes in the product s and or the program s described in this documentation at any time UNITED STATES GOVERNMENT LEGENDS If you are a United States government agency then this documentation and the software described herein are provided to you subject to the following restricted rights For units of the Department of Defense Restricted Rights Legend Use duplication or disclosure by the Government is subject to restrictions as set forth in subparagraph c 1 ii for restricted Rights in Technical Data and Computer Software clause at 48 C FR 52 227 7013 3Com Centre Boundary Way Maylands Park South Hemel Hempstead H
14. 86 India 61 2 9424 5179 or When you contact 3Com for assistance please have the follow 000800 6501111 x x dik P Indonesia 001 803 61 009 ing information ready Japan 00531 616 439 or 4 03 5977 7991 m Product model name part number and serial number Malaysia 1800 801 777 m A list of system hardware and software including revision New Zealand 0800 446 398 Pakistan 61 2 9937 5083 ce Philippines 1235 61 266 2602 or 1800 1 888 9469 E Diagnostic eror messages PR of China 800 810 3033 m Details about recent configuration changes if applicable Singapore 800 6161 463 S Korea 080 333 3308 Taiwan 00801 611 261 Before you send a product directly to 3Com for repair you must Thailand 001 800 611 2000 first obtain an authorization number Products sent to 3Com without authorization numbers dearly marked on the outside of You can also obtain support in this region using the following the package will be returned to the sender unopened at the email apr_technical_support 3com com sender s expense If your product is registered and under Or request a repair authorization number RMA by fax using warranty you can obtain an RMA number online at this number 65 543 6348 http eSupport 3com com These numbers are correct at the time of publication Find a current directory of support telephone numbers posted on the 3Com web site at http csoweb4 3com com contactus Country Telephone Number Country Telephone Number E
15. LAN1 m Subnet Mask This mask identifies the host address bits Figure 10 Basic Port Configuration Screen used for routing to specific subnets eh Base m Default Gateway The IP address of the gateway router 3com Port Configuration between this device and management stations that exist on o other network segments Se Basic Port Configuration m MAC Address The MAC address of this switch Port Configuration _ oS eS mu Se Logistics Enabled Disabled Click Apply to save any changes you have made ane honing Enabled il Enabled Enabled x Enabled y Enabled _y Enabled y 2 3 System Tools 4 5 Support 6 Enabled Enabled 7 8 9 Enabled E Enabled E Enabled y Enabled Enabled y Enabled Enabled y Enabled x Enabled y Enabled x Enabled Enabled Enabled Enabled Number Number of ports Label Port name Status Shows if the interface is enabled or disabled How Control Shows if flow control is enabled or disabled m Speed Duplex Shows the current speed and duplex mode Auto or fixed choice In the Advanced Port Configuration page you can set the Switch s broadcast storm control and threshold limits Figure 11 Advanced Port Configuration Screen ea 3com Port Configuration Summary Pes
16. LOG OUT Any network users who are currently accessing the Internet will have their access interrupted while the restart takes place and they may need to reboot their computers when the restart has completed and the Switch is operational again Configuration Figure 23 Configuration Screen Summary Password IP Settings Port Configuration VLANs Trunking Traffic Monitoring System Tools Support System Tools Reset to Factory Default Configuration Please press the RESET button to restore configuration to factory default Note All current configuration will be lost Backup Configuration Please press the BACKUP button to save configuration data to your PC BACKUP Note You need to make sure the File of type is set to All files Select the Configuration tab to display the Configuration screen Figure 23 m Click BACKUP to save the current configurations of the Switch You will be prompted to download and save a file to disk m If you want to reinstate the configuration settings previously saved to a file scroll down the web page and click Browse to locate the backup file on your computer and then RESTORE to copy the configuration back to the Switch For security purposes restoring the configuration does not change the password m If you want to reset the settings on your Switch to those that were loaded at the factory click RESET You wil
17. alf Duplex A system that allows packets to be transmitted and received but not at the same time Half duplex is not supported for 1000 Mbps Contrast with full duplex Institute of Electrical and Electronics Engineers This American organization was founded in 1963 and sets standards for computers and communications IEEE 802 1D Specifies a general method for the operation of MAC bridges including the Spanning Tree Protocol IEEE 802 1Q VLAN Tagging Defines Ethernet frame tags which carry VLAN information It allows switches to assign endstations to different virtual LANs and defines a standard way for VLANs to communicate across switched networks IEEE 802 1p An IEEE standard for providing quality of service QoS in Ethernet networks The standard uses packet tags that define up to eight traffic classes and allows switches to transmit packets based on the tagged priority value IEEE 802 3ad A standard that defines link aggregation 802 3ad is now incorporated into the relevant sections of the IEEE Std 802 3 2002 Internet Engineering Task Force An organization responsible for providing engineering solutions for TCP IP networks In the network management area this group is responsible for the development of the SNMP protocol Internet Protocol IP is a layer 3 network protocol that is the standard for sending data through a network IP is part of the TCP IP set of protocols that describe the routing of packets to
18. an communicate with all VLANs or only with a selected VLAN m Uplink if you select this the port is able to communicate with all VLANs on the Switch m Desktop if you select this the port can only communi cate with other ports assigned to the VLAN selected in the VLAN ID drop down list An Uplink port is sometimes referred to as a tagged port The two terms refer to the same feature m VLAN ID Enter the ID of the configured VLAN to which you want this port to belong Membership VLANs Use the Membership VLAN page to configure port members for the selected VLAN Figure 17 Membership VLANs Screen CAR Baseline Switch 2816 SFP Plus 3Com Summary Membership Password VLAN Membership IP Settings Hell Port Configuration an Apply Cancel _ vam Name C Ports MEANS pa Fre Desktop Trunking Main office Traffic Monitoring System Tools Support jajaja ajajaja ers EEE m m a m m VLAN ID ID of the configured VLAN 1 4094 no leading zeroes m Name Name of the VLAN 1 to 32 characters m Ports Port identifier Figure 18 Trunking Screen Trunking Ports can be statically grouped into a trunk also known as an aggregated link under the IEEE 802 1ad standard This increases the bandwidth of a network connection and ensures fault recovery Trunking permits the connection of multiple ports to the same remote device in order to ac
19. are configured with static addresses also known as fixed addresses and you do not wish to change this then you should use the Discovery program on the Switch CD ROM to detect and configure your Switch This application will help you to find and configure your 3Com product Windows Installation 95 98 XP 2000 2003 Server NT 1 Insert the Switch CD ROM in the CD ROM drive on your Please select the network interface that your product is connected to computer A menu will appear select Switch Discovery NDIS 5 0 driver YS 5 0 driver IP address of adapter 192 168 1 2 Cancel When the Welcome screen is displayed click on Next and wait 3 Figure 30 shows an example Discovered Devices screen Highlight until the application discovers the Switches connected to your the Secure Switch by clicking on it and click Next LAN Figure 31 Discovery Finish Screen 3Com Discovery 6 0 lx Completing the 3Com Discovery Application Figure 30 Discovered Switch 3Com Discovery 6 0 xj Discovered Devices Please choose a Device to configure Communication with your 3Com Device has been successful Product Code Product Name IP Address Serial Number You are now ready to configure the Device 6485 Switch 2816 SFP Plus 1921681 102 7UHF46B9C2A9C If you lose contact with the Device you should re launch the Discovery application To exit the application and connect to your Device click Finish
20. ble network loops The spanning tree ensures that the optimal path is maintained between spanning tree compliant networked devices by m Disabling redundant paths when the main paths are operational m Enabling redundant paths if the main paths fail Spanning tree uses a distributed algorithm to select a bridging device that serves as the root of the spanning tree network The bridging device known as the Root Bridge generates BPDUs Bridge Protocol Data Units on all ports at a regular interval known as the Hello Time All other spanning tree compliant devices on the network have a designated Root Port This is the Port nearest the Root Bridge and it is used for receiving the BPDUs initiated by the Root Bridge If a bridge does not get a Hello BPDU after a predetermined interval the bridge assumes that the link to the Root Bridge is down This bridge will then initiate negotiations with other bridges to reconfigure the network to reestablish a valid network topology After all the bridges on the network have determined the configuration of their ports each bridge only forwards traffic between the Root Port and the ports that are the Designated Bridge Ports for each network segment All other ports are 3COM Summary Password IP Setting Port Confi VLANs Trunking Traffic Moi blocked which means that they are prevented from forwarding traffic Figure 26 Spanning Tree Screen Mi Baseline Switc System Tools
21. ect to a LAN have a MAC address assigned to them as they are used to identify other devices in a network MAC addresses are 6 bytes long Network Ping A Network is a collection of computers and other computer equipment that are connected for the purpose of exchanging information or sharing resources Networks vary in size some are within a single room others span continents Packet Internet Groper An internet utility used to determine whether a particular IP address is online It is used to test and debug a network by sending out a packet and waiting for a response Protocol A set of rules for communication between devices on a network The rules dictate format timing sequencing and error control RJ 45 A standard connector used to connect Ethernet networks The RJ stands for registered jack Server A computer in a network that is shared by multiple end stations Servers provide end stations with access to shared network services such as computer files and printer queues Small From Factor Pluggable SFP Connectors are based on an open standard that enables hot swapping of various type of fiber optic and copper based transceivers into the host equipment Subnet Address An extension of the IP addressing scheme that allows a site to use a single IP network address for multiple physical networks Subnet Mask A subnet mask which may be a part of the TCP IP information provided by your ISP is a set of four n
22. ection of network nodes that share the same collision domain regardless of their physical location or connection point in the network A VLAN serves as a logical workgroup with no physical barriers and allows users to share information and resources as though located on the same LAN 59 INDEX Numbers 1000BASE LX 55 1000BASE SX 55 1000BASE T 55 l00BASE TX 55 10BASE T 55 802 1p Prioritization 36 A admin password changing 23 automatic IP configuration 19 bandwidth 55 Baseline Switch 2816 SFP Plus 49 Cc category 3 cables 55 category 5 cables 55 Category 5e Cables 56 Category 6 Cables 56 changing the admin password 23 client 56 configuring computers 17 configuring the Switch 21 CSA statement 65 D detecting the Switch 39 DHCP 56 DHCP server configuring 30 diagram front panel 9 Discovery application 39 DSCP 36 dynamic host control protocol 56 E Ethernet 56 F fan status 22 Fast Ethemet 56 FCC statement 65 Feedback about this User Guide 6 firmware upgrading 33 forgotten default IP address 42 password 42 username 42 front panel diagram 9 full duplex 56 G getting help 21 Gigabit Ethernet 56 H half duplex 56 help menu 21 l IEEE 56 IETF 57 IP address 19 automatic IP configuration 19 DHCP addressing 19 Discovery program 19 static IP configuration 19 IP defined 57 IP Precedence 36 ISP defined 57 L LAN defined 57 LAN settings configuring 23 l
23. er networking equipment and is continually being devel m Identify menu names menu commands and soft oped Contact your supplier for the latest product information ware button names Examples and to order these products From the Help menu select Contents Click OK Product Registration You can now register your Baseline Switch on the 3Com web site Feedback about this User Guide to receive up to date information on your product http esupport 3com com Your suggestions are very important to us They will help make our documentation more useful to you Please e mail comments about this document to 3Com at pddtechpubs_comments 3com com Please include the following information when commenting m Document title m Document part number on the title page m Page number if appropriate Bample m 3Com Baseline Switch 2816 SFP Plus User Guide m Part Number DUA1648 5AAAOx m Page 24 INTRODUCTION The 3Com Baseline Switch 2816 SFP Plus is a versatile easy to use configurable Switch It is ideal for users who want the high speed performance of 10 100 1000 switching with the added functionality of Gigabit links but do not need sophisticated management capabilities The Switch is shipped ready for use No configuration is necessary Baseline Switch 2816 SFP Plus The Switch has 16 shielded RJ 45 10 100 1000 Mbps auto negotiating ports and four Small Form Factor Pluggable SFP transceiver slots on the front panel f
24. erts HP2 7YU U K For avilian agencies Restricted Rights Legend Use reproduction or disclosure is subject to restrictions set forth in subparagraph a through d of the Commercial Computer Software Restricted Rights Clause at 48 C FR 52 227 19 and the limitations set forth in 3Com Corporation s standard commercial agreement for the software Unpublished rights reserved under the copyright laws of the United States If there is any software on removable media described in this documentation it is furnished under a license agreement included with the product as a separate document in the hard copy documentation or on the removable media in a directory file named LICENSE TXT If you are unable to locate a copy please contact 3Com and a copy will be provided to you Unless otherwise indicated 3Com registered trademarks are registered in the United States and may or may not be registered in other countries 3Com the 3Com logo and SuperStack are registered trademarks of 3Com Corporation Other brand and product names may be registered trademarks or trademarks of their respective holders Environmental Statement It is the policy of 3Com Corporation to be environmentally friendly in all operations To uphold our policy we are committed to m Establishing environmental performance standards that comply with national legislation and regulations Conserving energy materials and natural resources in all operations Reducing the wa
25. es en dessous des unit s Hub plus troites calibre 18 AWG m Ne branchez pas votre appareil sur une prise secteur type SV ou SJ alimentation lectrique lorsqu il n y a pas de connexion de e ae x at rsq yap m Le cordon doit tre en mesure d acheminer un courant nomi mise la terre mise la masse nal d au moins 10 A m Vous devez raccorder ce groupe une sortie mise a la terre m La prise femelle de branchement doit tre du type mise a la 5 3 fin d ecter int ti N terre mise a la masse et respecter la configuration NEMA mise a la masse afin de respecter les normes internationales 5 15P 15 A 125 V ou NEMA 6 15P 15 A 250 V de s curit Danemark m La prise m le d alimentation doit respecter la section 107 2 D1 m Le coupleur d appareil le connecteur du groupe et non pas la de la norme DK2 la ou DK2 5a prise murale doit respecter une configuration qui permet un Suisse m La prise m le d alimentation doit respecter la norme SEV ASE branchement sur une entr e d appareil EN60320 IEC 320 1011 m La prise secteur doit se trouver proximit de l appareil et son Europe E oan doit etre conforme aux nonnes CEE acc s doit tre facile Vous ne pouvez mettre l appareil hors m LE cordon secteur doit porter la mention lt HAR gt ou lt BASEC gt circuit qu en d branchant son cordon lectrique au niveau de et doit tre de type HO3VVF3GO 75 minimum cette prise m L appareil fonctionne a une tension extr mement bas
26. et appareil num rique de la classe A respecte toutes les exigences du R glement sur le mat riel brouilleur du Canada VCCI Statement CORB VIA AMBRHEECT COZER ZERE THATS LBRMELISACTCEMHNET TOBAR EMTS LIBRENATLEMHVET VCCI A Part Number DUA1648 5AAA02 Published September 2004
27. ew IP address instead When you have browsed to the Switch log in using your system password The default username is admin There is no default password Main Menu At the left side of all screens is a main menu as shown in Figure 5 When you click on a topic from the main menu that page will appear in the main part of the screen Figure 5 Switch Screen Layout Ba wae JETP Pin a Option Tabs Main Menu 21 m Summary allows you to enter system information and displays the system up time m Password allows the administrator to change the system password m IP settings allows the administrator to configure the IP settings of the Switch m Port Configuration allows the administrator to configure the Switch s port settings m VLANs allows the administrator to create VLAN groups add port members and to specify how VLAN tagging is used m Trunking allows the administrator to set up and maintain trunk membership for port groups m Traffic Monitoring allows the administrator to perform port traffic monitoring on the Switch m System Tools displays the current status and activity logs of the Switch m Support contains a comprehensive online help system and 3Com contact information Option Tabs Each menu page may also provide sub sections which are accessed through the use of option tabs see Figure 5 for example To access an option simply click on the required tab Get
28. ewurd Advanced Port Configuration IP Settings Port Configuration VLANs Trunking Traffic Monitoring Enabled y 7500 Packet Rate Threshold in Packets Per Second Broadcast Storm Control 0015000 System Tools Support Note Packet Threshold is ignored if Broadcast Storm Control is Disabled A COM mm BE m Broadcast Storm Control Shows if broadcast storm control is enabled or disabled m Packet Rate Threshold Shows the broadcast storm threshold 500 15000 packets per second VLANs The Switch uses VLANs to organise any group of ports into separate broadcast domains VLANs confine broadcast traffic to the originating group and can eliminate broadcast storms in large networks This also provides a more secure and cleaner network environment You can create up to 256 VLANs and either add specified ports to a chosen VLAN so that the port can only communicate with other ports on the VLAN or specify that a port can belong to all VLANs Communication between different VLANs can only take place if they are all connected to a router or Layer 3 Switch VLAN Configuration Examples Desktop VLAN Configuration Example Figure 12 Desktop VLAN Configuration Example Endstations in VLAN 2 Endstations in VLAN 1 Baseline Switch 2816 SFP Plus Server Server in VLAN 1 in VLAN 2 This example explains how you can set up a
29. fessional Services is available at http www 3com com Contact your authorized 3Com reseller or 3Com for additional product and support information 51 Troubleshoot Online 3Com knowledgebase which contains thousands of technical solutions written by 3Com support engineers helps you troubleshoot 3Com products This query based interactive tool is located at http knowledgebase 3com com Purchase Value Added Services To enhance response times or extend warranty benefits contact 3Com or your authorized reseller Value added services can include 24x7 telephone technical support software upgrades onsite assistance or advance hardware replacement Experienced engineers are available to Manage your installation with minimal disruption to your network Expert assessment and implementation services are offered to fill resource gaps and ensure the success of your networking projects Contact Us 3Com offers telephone e mail and internet access to technical support and repair services To access these services for your region use the appropriate telephone number URL or e mail address from the list below Telephone Technical Support and Repair Country Telephone Number To obtain telephone support as part of your warranty and other Asia Pacific Rim Telephone Technical Support and Repair service benefits you must first register your product at Australia 1 800 678 515 http eSupport 3com com Hong Kong 800 933 4
30. fined by the ElA TIA 568 standard Category 5e can be used in Ethernet 10BASE T Fast Ethernet 100BASE TX and Gigabit Ethernet 1000BASE T networks and can transmit data at speeds of up to 1000 Mbps Category 6 Cables One of five grades of Twisted Pair TP cabling defined by the ElA TIA 568 B standard Category 6 can be used in Ethernet 10BASE T Fast Ethernet 100BASE TX and Gigabit Ethernet 1000BASE T networks and can transmit data at speeds of up to 1000 Mbps Client The term used to describe the desktop PC that is connected to your network DHCP Dynamic Host Configuration Protocol This protocol automatically assigns an IP address for every computer on your network Windows 95 Windows 98 and Windows NT 4 0 contain software that assigns IP addresses to workstations on a network These assignments are made by the DHCP server software that runs on Windows NT Server Ethernet A LAN specification developed jointly by Xerox Intel and Digital Equipment Corporation Ethernet networks use CSMA CD to transmit packets at a rate of 10 Mbps and 100 Mbps over a variety of cables Ethernet Address See MAC address Fast Ethernet An Ethernet system that is designed to operate at 100 Mbps Gigabit Ethernet An Ethernet system that is designed to operate at 1000 Mbps 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 H
31. h switch is set to Uplink and that these ports are connected To set up the configuration shown in Figure 13 do the following Use the Create VLANs screen Figure 14 to create VLAN2 on both Switch 1 and Switch 2 and assign the same name to it VLAN is the default VLAN and already exists na wh In the Modify VLANs screen Figure 16 for Switch 1 select Desktop from the Mode drop down list for the ports you want to add to VLAN2 Select 2 from the VLAN ID drop down list for the ports you want to add to VLAN2 Repeat steps 2 and 3 for Switch 2 Select Uplink as the Mode for port 16 on Switch 1 Select Uplink as the Mode for port 8 on Switch 2 Connect port 16 on Switch 1 to port 8 on Switch 2 Those ports on Switch 1 that are members of VLAN2 can now communicate with those ports on Switch 2 that are members of VLAN2 Create VLANs Delete VLANs Use the Create VLANs page to set up VLANs To propagate Use the Delete VLANs page to remove a VLAN group from the information about VLAN groups used on this switch to external current list devices you must specify a VLAN ID for each of these groups a ee di Figure 15 Delete VLANs Screen A ARMES ee Reli Baseline Switch 2816 SFP Plus 3com Summary CAIN Baseline Switch 2816 SFP Plus Password Delete VLANs Summary IP Settings Heli Password Create VLANs Port Configuration rei IP Settings VLANs Help i Delete a Virtual LAN in the unit Apply Port Conf
32. hieve higher network throughput Guidelines for creating Trunks m Any of the ports on the Switch can be used for creating a trunk This switch can support a maximum of 4 trunks Each trunk may contain up to 8 members A port may only be a member of one trunk at any one time All ports in a trunk must be configured in an identical manner including communication mode i e speed duplex mode and flow control Use the Trunking Create M odify Delete page to create configure or remove ports groups from trunks eh 3com Summary Password IP Settings Port Configuration VLANs Trunking Traffic Monitoring System Tools Support Trunking Trunk Modify Delete Speed Duplex Delete Auto r Auto o auto o E Auto yl Trunk Number Name Ports Flow Control 1 Rao ts Enabled 2 Frstmoor 122 Enabled 3 Secondtiaor 97 Enabled 4 Site 8 57 Enabled y Trunk Number Displays the number of the trunk Name Allows you to label an interface Range 1 64 characters How Control Allows automatic or manual selection of flow control Speed Duplex Allows auto negotiation to be enabled or disabled When auto negotiation is disabled you can force the settings for speed duplex mode and flow control Use the Trunking Membership page to add ports to a group Use the Tr
33. ies are mapped to a Class of Service value by the Switch and the traffic then sent to the corresponding output queue Figure 27 802 1p Prioritization screen Support System Tools Selecting Support on the main menu displays the support links screen which contains a list of Internet links that provide Summary 802 1p Prioritization information and support concerning the Switch Figure 28 Password IP Settings Bart Configuration 802 1p Prioritization Enabled Figure 28 Support Screen CA 3com Summary Support Trunking Traffic Monitoring System Tools Support Password 2 This Administration System contains a comprehensive online help system that gives explanations and instructions IP Settings about configuring the Baseline Switch 2816 SFP Plus Port Configuration How to use the help system VLANs Table of Contents Trunking Traffic Monitoring If additional assistance is required please select one of the following links System Tools a Support from your Network Supplier Support from 3Com Returning Products for Repair Support UsING DISCOVERY Discovery will find the Switch even if it is unconfigured or Running the Discovery Application misconfigured 3Com provides a user friendly Discovery application for detecting Figure 29 Discovery Welcome Screen the Switch on the network Com Discovery 6 0 x Welcome If your computers
34. iguration automatic static or DHCP was last configured is activated when the Switch powers up again Automatic Process To detect its IP information using the automatic configuration process the Switch goes through the following sequence of steps The Switch tries to configure itself with the default IP address 169 254 x y where x and y are converted from the last two bytes of the Switch s MAC address For example if the MAC address is O8004E000102 the IP address would be 169 254 1 2 This address is used if the Switch is operating in a standalone mode or no other Switches on the network have this IP address If this default IP address is already in use on the network then the Switch detects this and increments the last byte of the MAC address by one to generate its IP address The IP address would therefore become 169 254 1 3 3 The Switch repeats step 2 until an unused IP address is found SWITCH CONFIGURATION This chapter describes all the options available through the Switch configuration pages and is provided as a reference Navigating Through the Switch Configuration Pages To get to the configuration pages browse to the Switch by entering the URL in the location bar of your browser The default URL is http 169 254 x y where x and y are assigned by the process described in How Automatic IP Configuration Works on page 19 If you changed the Switch LAN IP address during initial configuration use the n
35. iguration Trunking VLANs Create a Virtual LAN in the unit Em Traffic Monitoring mao pH al Trunking System Tools VLAN ID 2 Z Traffic Monitoring Cancel System Tools Name Outpost Support Support LOG OUT LOG OUT m VLAN ID ID of the VLAN to be deleted If any port is m VLAN ID ID of configured VLAN 1 4094 no leading assigned to this group as untagged it will be reassigned to zeroes VLAN group 1 as untagged m Name Name of the VLAN 1 to 32 characters Modify VLANs Use the Modify VLAN page to change the VLAN to which a port belongs and configure the port to communicate with all other VLANs or a selected VLAN Figure 16 Modify VLANs Screen Cal Baseline Switch 2816 SFP Plus scom Modity MemberstiR Password Modify VLAN IP Settings E Port Mode VLAN Help Port Configuration 1 Upink face VLANs 1 2 Desktop 1 Apply Trunking Eu SH a ETS 3 Desktop gt Traffic Monitoring 4 Desktop T _cancet System Tools 5 Desktop z iz Support 6 Desktop z i 7 Uplink at x 8 Desktop 1x 9 Desktop z sx 10 Desktop gt 12 11 Desktop T 12 Desktop x Desktop Desktop m Port Displays the port number m Mode The mode option determines if the port c
36. iority data It differentiates traffic into classes and prioritizes those classes automatically Traffic prioritization uses the multiple traffic queues that are present in the hardware of the Switch to ensure that high priority traffic is forwarded on a different queue from lower priority traffic and is given preference over that traffic This ensures that time sensitive traffic gets the highest level of service The 802 1D standard specifies eight distinct levels of priority O to 7 each of which relates to a particular type of traffic The priority levels and their traffic types are shown in the following table Priority Level Traffic Type 0 Best Effort 1 Background 2 Standard spare 3 Excellent Effort business critical Priority Level Traffic Type Controlled Load streaming multimedia Video Interactive media less than 100 millisecondsn latency and jitter Voice Interactive voice less than 10 milliseconds latency and jitter Network Control Reserved traffic The traffic prioritization feature supported by the Switch is compatible with the relevant sections of the IEEE 802 1D standard incorporating IEEE 802 1p This switch uses the Weighted Round Robin WRR algorithm to determine the frequency at which it services each priority queue The Switch allows you to choose between using IP Precedence or DSCP Differentiated Services Code Point priority When either of these services is enabled the priorit
37. is poor The Switch supports full duplex auto negotiation If the connected device does not support auto negotiation ensure it is configured for half duplex operation only If the connected device has auto negotiation disabled or over ridden and is configured as full duplex the Switch will configure the link as half duplex causing a mis match that will reduce network performance when data is transmitting and receiving simultaneously on the same link Ensure that the connected device has either m Auto negotiation enabled or m The ports are configured for half duplex operation All ports appear to show continual activity There may be broadcast storms on the network Remove port connections one at a time waiting a few seconds between each port If the LEDs go off after removing a port connection the device that was connected to that port is introducing an excessive amount of broadcast frames to the network some pieces of network equipment operate by sending out broadcast frames regularly Refer to the documentation that accompanies the device for information on disabling the broadcast operation The Finmware image has become corrupted If the firmware image becomes corrupted you need to upgrade the firmware The Switch goes into Fail Safe mode and the screen shown in Figure 32 displays Figure 32 Fail Safe Mode Screen Fail Safe Mode Upgrade Firmware Please select the location of the software u
38. l lose all your configuration changes The Switch LAN IP address will revert to the default IP address 169 254 x y using the process described in Automatic Process on page 19 You may need to restart your computer to re establish communication with the Switch Upgrade The Upgrade facility allows you to install on the Switch any new releases of system software that 3Com may make available The newer version of software can be downloaded via HTTP and once copied to the Switch the Switch will restart and apply the newer system software version Figure 24 Upgrade Screen CAM Baseline Switch 2816 SFP Plus 3com un Summary Upgrade Firmware Password a This allows you to upgrade the software installed on this unit to a new version IP Settings downloaded from the 3Com Support Website Port Configuration Help Please select the location of the software upgrade file on your PC using the BROWSE Apply button below then press the Apply button EFE Cancel Browse a VLANs Trunking Traffic Monitoring System Tools Note You need to make sure the File of type is set to All files to see the file Support LOG OUT Once you have downloaded the software use the Browse button to locate the file on your computer and then click on Apply gt You may need to change the file type in the dialog box displayed by your web browser to to be able to see the file The file
39. lex LOOBASE TX half duplex 10BASE T full duplex and 10BASE T half duplex Auto negotiation is defined in the IEEE 802 3 standard for Ethernet and is an operation that takes place in a few milliseconds Auto negotiation nust be enabled for the 1000BASE T ports to operate at 1000 Mbps full duplex 55 Bandwidth The information capacity measured in bits per second that a channel can transmit The bandwidth of Ethernet is 10 Mbps the bandwidth of Fast Ethernet is 100 Mbps and Gigabit Ethernet is 1000 Mbps BPDU Bridge Protocol Data Unit A type of information packet that ensures that data is efficiently exchanged between Switches in a LAN BPDU messages detect loops in a network and remove them by shutting down the bridge causing the loop Category 3 Cables One of five grades of Twisted Pair TP cabling defined by the ElA TIA 568 standard Category 3 is voice grade cable and can only be used in Ethernet networks LOBASE T to transmit data at speeds of up to 10 Mbps Category 5 Cables One of five grades of Twisted Pair TP cabling defined by the EIA TIA 568 standard Category 5 can be used in Ethernet LOBASE T and Fast Ethernet networks LOOBASE TX and can transmit data at speeds of up to 100 Mbps Category 5 cabling is better to use for network cabling than Category 3 because it supports both Ethernet 10 Mbps and Fast Ethernet 100 Mbps speeds Category 5e Cables One of five grades of Twisted Pair TP cabling de
40. n werden Der Betrieb dieses Ger ts erfolgt unter den SELV Bedingungen Sicherheitskleinstspannung gem IEC 60950 Diese Bedingungen sind nur gegeben wenn auch die an das Ger t angeschlossenen Ger te unter SELV Bedingungen betrieben werden Stromkabel Dies muss von dem Land in dem es benutzt wird gepr ft werden Schweiz Europe m Dieser Stromstecker mu die SEV ASE 1011Bestimmungen einhalten m Das Netzkabel mu vom Typ HO3VVF3GO 75 Mindestanforderung sein und die Aufschrift lt HAR gt oder lt BASEC gt tragen m Der Netzstecker mu die Norm CEE 7 7 erf llen SCHUKO 47 TECHNICAL INFORMATION Related Standards The Baseline Switch 2816 SFP Plus has been designed to the following standards Functional ISO 8802 3 IEEE 802 3 Ethernet IEEE 802 3u Fast Ethernet IEEE 802 3ab and IEEE 802 3z Gigabit Ethernet IEEE 802 3x Flow Control IEEE 802 1D 1998 Bridging MAC Address 8192 Safety CSA CUS UL 1950 amp CSA 22 2 950 IEC 60950 CB EN 60950 TUV GS EMC Emissions EN 55022 Class A FCC Part 15 Subpart B Class A ICES 003 Class A VCCI Class A Immunity EN 55024 Environmental Operating Temperature 0 45 C 32 113 F Humidity 10 95 non condensing Standard EN 60068 IEC 68 various parts Physical Width 440 mm 17 3 in Depth 173 mm 6 8 in Height 43 6 mm 1 7 in or 1U Weight 1 8 kg 3 969 Ib Mounting Free standing or 19 in rack mounted using the
41. ng a DHCP server How Your Switch Obtains IP Information Your Switch can obtain IP information using one of the following methods m Automatic IP Configuration default the Switch will configure itself with its default IP address 169 254 x y where x and y are the last two bytes of the Switch s MAC address Refer to Automatic Process on page 19 for details on how the Switch automatically obtains IP address information Static IP Configuration you can manually input the IP information IP address subnet mask and default gateway Refer to IP Settings on page 23 If your computers are configured with static addresses and you do not wish to change this then you should use the Discovery program on the Switch CD ROM to detect and configure your Switch For details on how to use Discovery to detect the Switch on the network refer to Using Discovery on page 39 DHCP Addressing DHCP addressing is a dynamic mechanism which the Switch uses to obtain an IP address lease from the DHCP server which is located on your network If you select DHCP addressing you will only be able to find out the IP address of the Switch by cross referencing the 19 How Automatic IP Configuration Works When your Switch is powered up for the first time the IP configuration setting is set to automatic this is the default setting If your Switch has been powered up before whichever of the three options for IP conf
42. oading Switch configuration 32 local area network 57 M MAC address 57 main menu 21 manual configuration 19 media access control 57 N network defined 58 O obtaining support feedback 37 P password 42 changing 23 positioning the Switch 13 power cycle 32 prioritization 802 1p 36 traffic 36 protocol defined 58 R restarting the Switch 32 restoring Switch configuration 33 RJ 45 defined 58 S saving Switch configuration 32 server defined 58 setting up computers 17 subnet mask 58 support 37 Support for your product 51 Switch changing the password 23 configuration 21 positioning 13 restarting 32 switch defined 58 system tools 32 T TCP IP 57 defined 59 technical specifications 49 traffic 59 traffic prioritization 36 U upgrading firmware 33 V VCCI statement 65 VLAN 25 configuration example 25 create a 27 delete a 28 modifya 28 REGULATORY NOTICES 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 commerical environment 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 communications Operation of this equipment in a residential area is likely to cause ha
43. or easy flexible connection to fiber based Gigabit media Each 10 100 1000 Mbps port automatically determines the speed and duplex mode of the connected equipment and provides a suitable switched connection The four SFP ports support fiber Gigabit Ethernet short wave SX and long wave LX SFP transceivers in any combination This offers you the flexibility of using SFP transceivers to provide connectivity between the Switch and a 1000 Mbps core network The Switch is suitable for office use where it can be free standing or rack mounted in a wiring closet or equipment room Figure 1 Network Plan s r Endstations on switched Baseline 10 100 Switch 100 Mbps connections r A Endstations on switched Baseline 10 100 Switch 100 Mbps connections LE Baseline Switch 2816 SFP Plus 1000 Mbps copper or Fiber connection to backbone or server worksation Endstations on switched 100 Mbps or 1000 Mbps connections 1000 Mbps link es 10 Mbps or 100 Mbps link Package Contents The Switch comes with One power cord Four standard height self adhesive rubber pads One mounting kit Installation CD This User Guide Warranty flyer The Switch is powered from the AC supply How TO USE THE BASELINE SWITCH 2816 SFP PLUS AVERTISSEMENT Points d acc s RJ 45 Ceux ci sont prot g s JN par des prises de donn es Ils ne pe
44. ounting brackets and four screws These are used for rack mounting the unit When mounting the unit you should take note of the guidelines given in Positioning the Switch on page 13 Rack Mounting the Units A The Switch is 1U high and will fit in a standard 19 inch rack CAUTION Disconnect all cables from the unit before continuing Remove the self adhesive pads from the underside of unit if already fitted Place the unit the right way up on a hard flat surface with the front facing towards you Locate a mounting bracket over the mounting holes on one side of the unit Insert the two screws supplied in the mounting kit and fully tighten with a suitable screwdriver Repeat the two previous steps for the other side of the unit Insert the unit into the 19 inch rack and secure with suitable screws not provided Reconnect the cables 17 Figure 4 Back Mounting the Units 09965 08686650 60505088 950909599 AS ANTAS ao E ae OQ g Q we Le AUTOMATIC IP CONFIGURATION gt This chapter explains more about IP addresses and how automatic IP configuration works on the Switch For details on how to view and amend your Switch s IP settings refer to IP Settings on page 23 Switch s MAC address in the DHCP servers lease list Refer to IP Settings on page 23 3Com recommends that you do not use DHCP Addressing unless you have experience of configuring and managi
45. pgrade file on your PC using the BROWSE button below then press the Apply button C Note You need to make sure the File of type is set to All files to see the file Restart Please press the buttom to restart the switch RESTART THE SWITCH Note User will be disconnected fram the Internet while the switch is restarting Reset to Factory Default Configuration Please press the RESET button to restore configuration to factory Res default Note All current configuration will be lost To upgrade the firmware dick Browse and follow the on screen instructions to upgrade the Switch to the required version of firmware Alternatively click RESET to return the Switch to its factory default settings Once the Switch has entered Fail Safe mode and is reset upon startup the Switch will enter Automatic IP Configuration mode Refer to How Automatic IP Configuration Works on page 19 for details CAUTION Before recovering the Switch save the Switch s current configuration Recovering the Switch will cause the current configuration to be lost You forget the Switch s default IP address or you forget the User Name or Password that you assigned to the Switch The Discovery application can be used for detecting the Switch on the network Otherwise you can restore the default settings using the recovery button on the rear panel of the Switch For details on how to use Discovery to detect the Switch
46. rk performance 3Com Green The link is operating at 1000 Mbps recommends that you use devices that are capable of auto negotiation and that you ensure that auto negotiation is Yellow The link is operating at 10 or 100 Mbps enabled if it is a configurable option Flashing Packets are being received or transmitted on the port at 1000 Green Mbps 2 SFP Ports Flashing Packets are being received or transmitted on the port at 10 or The Small Form Factor Pluggable SFP ports are numbered 13 to Yellow 100 Mbps 16 If an SFP transceiver purchased separately is installed in a Flashing Port disabled or link loopback error slot and is active the associated RJ 45 port of the same number Yellow to is disabled Green off The link has not been established either nothing is connected The four SFP ports support fiber Gigabit Ethernet short wave SX and long wave LX SFP transceivers in any combination This offers you the flexibility of using SFP transceivers to provide connectivity between the Switch and remote 1000 Mbps workgroups or to create a high capacity aggregated link to the port or there is a problem m Check that the attached device is powered on m Check that the cable or fiber is the correct type and is not faulty m For fiber connections ensure that the receive RX and backbone connection transmit TX cable connectors are not swapped If these checks do not identify the cause of the problem it gt SFP ports are numbered 13
47. rmful interference to radio communications in which case the user will be required to correct the interference at their own expense Information to the User If this equipment does cause interference to radio or television reception which can be determined by tuming the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures E Reorient the receiving antenna E Relocate the equipment with respect to the receiver E Move the equipment away from the receiver Plug the equipment into a different outlet so that equipment and receiver are on different branch circuits If necessary the user should consult the dealer or an experienced radio television technician for additional suggestions The user may find the following booklet prepared by the Federal Communications Commission helpful How to Identify and Resolve Radio TV Interference Problems This booklet is available from the U S Government Printing Office Washington DC 20402 Stock No 004 000 00345 4 In order to meet FCC emissions limits this equipment must be used only with cables which comply with IEEE 802 3 CE Statement Europe This product complies with the European Low Voltage Directive 73 23 EEC and EMC Directive 89 336 EEC as amended by European Directive 93 68 EEC CSA Statement This Class A digital apparatus meets all requirements of the Canadian Interference Causing Equipment Regulations C
48. s Hold the transceiver so that the fiber connector is toward you and the product label is visible as shown in Figure 3 Ensure the wire release lever is closed in the upright position Gently slide the transceiver into the SFP slot until it clicks into place CAUTION SFP transceivers are keyed and can be properly inserted only one way If the transceiver does not dick when you insert it remove it turn it over and reinsert it Remove the plastic protective cover if fitted Connect the fiber cable The transceiver connects to the network using a duplex LC connector Attach a male duplex LC connector on the network cable into the duplex LC connector on the transceiver Connect the other end of the cable to a device fitted with an appropriate Gigabit Ethernet connection 7 Check the Module Active LEDs on the front of the Switch to ensure that it is operating correctly Figure 3 Inserting an SFP Transceiver Product label N Wire release Suitable slot on host Switch Removing an SFP Transceiver If you wish to remove the transceiver it is not necessary to power down your Switch 1 Disconnect the cable from the transceiver Move the wire release lever downwards until it is pointing toward you 3 Pull the wire release lever toward you to release the catch mechanism the transceiver will then easily slide out 16 MOUNTING KIT INSTRUCTIONS Introduction The Switch is supplied with two m
49. s are not likely to be exceeded It is recommended that the unit is installed in a clean air conditioned environment It is always good practice to wear an anti static wrist strap when installing network equipment connected to a ground point If one is not available try to keep in contact with a grounded rack and avoid touching the unit s ports and connectors if possible Static discharge can cause reliability problems in your equipment INSTALLATION RECOMMENDATIONS A CAUTION If installing the Switch in a free standing stack of different size Baseline or Superstack 3 units the smaller units must be installed above the larger ones Do not have a free standing stack of more than six units Power Supply Power problems can be the cause of serious failures and downtime in your network Ensure that the power input to your system is clean and free from sags and surges to avoid unforeseen network outages We recommend that you install power conditioning especially in areas prone to black outs power dips and electrical storms The unit is intended to be grounded Ensure it is connected to earth ground during normal use Installing proper grounding helps to avoid damage from lightning and power surges Rack Mounting or Free Standing The unit can be mounted in a 19 inch equipment rack using the Mounting Kit refer to Mounting Kit Instructions on page 17 or it can be free standing Do not place objects on top of the
50. se de s curit qui est conforme a la norme IEC60950 Ces conditions ne sont maintenues que si l quipement auquel il est raccord fonctionne dans les m mes conditions France et P rou uniquement Ce groupe ne peut pas tre aliment par un dispositif a imp dance a la terre Si vos alimentations sont du type imp dance a la terre ce groupe doit tre aliment par une tension de 230 V 2 P T par le biais d un transformateur d isolement a rapport 1 1 avec un point secondaire de WICHTIGE SICHERHEITSINFORMATIONEN Bitte unbedingt vor dem Einbauen des Baseline Switch 2816 SFP Pius die folgenden Sicherheitsanweisungen durchlesen WARNUNG Die Installation und der Ausbau des Ger ts darf nur durch Fachpersonal erfolgen Wenn der Baseline Switch 2816 SFP Plus mit anderen 3Com Hubs oder Switche gestapelt werden soll m ssen gr ssere Ger te unter den schmaleren Hubs eingebaut werden Das Ger t sollte nicht an eine ungeerdete Wechselstromsteckdose angeschlossen werden Das Ger t mu an eine geerdete Steckdose angeschlossen werden welche die internationalen Sicherheitsnormen erf llt Der Ger testecker der Anschlu an das Ger t nicht der Wandsteckdosenstecker mu einen gem EN 60320 IEC 320 konfigurierten Ger teeingang haben Die Netzsteckdose mu in der N he des Ger ts und leicht zug nglich sein Die Stromversorgung des Ger ts kann nur durch Herausziehen des Ger tenetzkabels aus der Netzsteckdose unterbroche
51. sonnel only If installing the Switch unit in a stack with other units the Switch unit must be installed below the narrower units and above the deeper units The unit must be connected to an earthed grounded outlet to comply with international safety standards Do not connect the unit to an A C outlet power supply without an earth ground connection The appliance coupler the connector to the unit and not the wall plug must have a configuration for mating with an EN60320 IEC320 appliance inlet The socket outlet must be near to the unit and easily accessible You can only remove power from the unit by disconnecting the power cord from the outlet This unit operates under SELV Safety Extra Low Voltage conditions according to IEC 60 The conditions are only maintained if the equipment to which it is connected also operates under SELV conditions France and Peru only This unit cannot be powered from mt supplies If your supplies are of IT type this unit must be powered by 230 V 2P T via an isolation transformer ratio 1 1 with the secondary connection point labelled Neutral connected directly to earth ground t Imp dance la terre U S A and Canada Denmark Switzerland UK Europe Power Cord Set This mus be approved for the country where it will be used The cord set must be UL approved and CSA certified The minimum specifications for the flexible cord are No 18 AWG Type SV or Y
52. ste generated by all operations Ensuring that all waste conforms to recognised environmental standards Maximising the recyclable and reusable content of all products Ensuring that all products can be recycled reused and disposed of safely Ensuring that all products are labelled according to recognised environmental standards Improving our environmental record on a continual basis Contents About this Guide Naming Convention 5 Conventions 5 Feedback about this User Guide 6 Product Registration 6 Introduction Baseline Switch 2816 SFP Plus 7 Package Contents 8 How to Use the Baseline Switch 2816 SFP Plus Front and Rear Panels 9 Front Panel Features 9 Rear Panel Features 11 Installation Recommendations Positioning the Switch 13 Rack Mounting or Free Standing 13 Power Supply 13 Power Up 13 Spot Checks 14 Connecting to a Network Device 14 SFP Operation 14 Approved SFP Transceivers 14 Inserting an SFP Transceiver 14 Removing an SFP Transceiver 15 Mounting Kit Instructions Introduction 17 Rack Mounting the Units 17 Automatic IP Configuration How Your Switch Obtains IP Information 19 How Automatic IP Configuration Works 19 Automatic Process 19 Switch Configuration Navigating Through the Switch Configuration Pages 21 Main Menu 21 Option Tabs 21 Fan Status 22 Summary Screen 22 Password 23 IP Settings 23 Port Configuration 24 VLANs 25 VLAN Configuration Examples 26 Create VLANS 28 Delete VLANS 28 Modify
53. supports the attachment of a network analyzer to one port in order to monitor the traffic of other ports on the Switch Figure 21 Traffic Monitoring Screen AVR Baseline Switch 2816 SFP Plus 3com Summary Traffic Monitoring Port Traffic Monitoring Password Help ESen All traffic transmitted and received on the monitor Port Configuration port will be copied to the analyser port Apply SCANS Monitor Port Port cranking Analyser Port Ponia y conce Traffic Monitoring System Tools Support m Monitor Port This is the port that is to be monitored m Analyzer Port This is the port that is connected to the analyzer System Tools The System Tools menu includes five administration items Restart Configuration Upgrade Spanning Tree and 802 1p Prioritization Restart Pressing the Restart the Switch button has the same effect as power cycling the unit No configuration information will be lost This function may be of use if you are experiencing problems and you wish to re establish your Internet connection Figure 22 Restart Screen ev Baseline Switch 2816 SFP Plus 3com Summary Password IP Settings Help Port Configuration Please press the button to restart the switch VLANs Trunking RESTART THE SWITCH Traffic Monitoring System Tools Note User will be disconnected from the Internet while the switch is restarting Support
54. t on the connecting device 3Com recommends the use of Category 5e or 6 cables for 1000BASE T operation SFP Operation The following sections describe how to insert an SFP transceiver into an SFP slot SFP transceivers are hot insertable and hot swappable You can remove them from and insert them into any SFP port without having to power down the Switch Approved SFP Transceivers The following list of approved SFP transceivers is correct at the time of publication m 3CSFP91 SFP SX m 3CSFP92 SFP LX To access the latest list of approved SFP transceivers for the Switch on the 3Com Corporation World Wide Web site enter this URL into your internet browser http www 3com com Inserting an SFP Transceiver To be recognised as valid the SFP transceiver must have the following characteristics m LOOOBASE SX or LOOOBASE LX media type m 1000BASE SX SFP transceiver Use this transceiver to connect the Switch directly to a multimode fiber optic cable m 1000BASE LX SFP transceiver Use this transceiver to connect the Switch directly to a single mode fiber optic cable or to multimode fiber using a conditioned launch cable gt If the SFP transceiver is faulty it will not operate within the Switch See Problem Solving on page 41 gt Use of non 3Com SFPs is not recommended If the SFP transceiver is invalid it will not be recognised by the Switch Use the following sequence of steps to activate the SFP port
55. tanding stack apply the pads to each marked corner area on the underside of the unit Place the unit on top of the lower unit ensuring that the pads locate with the recesses of the lower unit Rear Panel Features 3 Power Supply The Switch automatically adjusts to the supply voltage Only use the power cord that is supplied with the unit 9 Recovery button The recovery button reinitializes the Switch This retums the Switch to the factory default settings if for example you have forgotten the default IP address or forgotten your user name or password CAUTION 3Com recommends that you back up your configuration settings before you recover the Switch otherwise your configuration will be lost Refer to Configuration on page 33 for details Positioning the Switch When deciding where to position the Switch ensure that m It is accessible and cables can be connected easily m Cabling is away from sources of electrical noise These include lift shafts microwave ovens and air conditioning units Electromagnetic fields can interfere with the signals on copper cabling and introduce errors therefore slowing down your network m Water or moisture cannot enter the case of the unit m Air flow around the unit and through the vents in the side of the case is not restricted 3Com recommends that you provide a minimum of 25 mm 1 in clearance m The air is as free from dust as possible m Temperature operating limit
56. tegory 3 and Category 5 Twisted Pair Cables are referred to as Twisted Pair Cables throughout this guide Conventions Table 1 and Table 2 list conventions that are used throughout this guide Table 1 Notice Icons Icon Notice Type Desaiption Information note Information that describes important features or instructions A Caution Information that alerts you to potential loss of data or potential damage to an application system or device Warning Information that alerts you to potential personal injury Table 2 Text Conventions Convention Description The words enter When you see the word enter in this guide you and type must type something and then press Return or Enter Do not press Return or Enter when an instruction simply says type Keyboard key If you must press two or more keys simultaneously names the key names are linked with a plus sign Example Press Ctrl Alt Del Table 2 Text Conventions continued Do not use this e mail address for technical support questions FR D For information about contacting Technical Support please refer Convention Description a i 9 Pr 5 to Support on page 37 Words in italics Italics are used to m Emphasize a point m Denote a new term at the place where it is defined The Switch is part of the extensive Baseline range of 3Com prod ucts This range includes hubs switches power systems and in the text oth
57. ting Help On every screen a Help button is available that provides access to the context sensitive online help system Click this button for further assistance and guidance relating to the current screen Fan Status Summary Screen At the bottom of all screens is an image of the Switch s front panel as shown in Figure 6 At the right hand side of the panel Figure 7_ Summary Screen under the 3Com company name is an image depicting two fans These represent the Switch s fans and their current status A ES green fan indicates normal operation a red fan indicates that the 3com fan has failed to start In the event of fan failure refer to ns Technical Support on page 52 Password system Information a oo Figure 6 Switch front panel layout FRE Location Trunking Traffic Monitoring Contact System Tools System Up Time SOE te FFF COCO on on on m Support Switch Information Serial Number Number of Parts Fan failure Hardware Version gt The password is case sensitive Password You should change the password to prevent unauthorized access to the Administration System IP Settings The IP Settings menu allows you to view and amend your Figure 8 Password Screen Switch s IP settings AM Baseline Switch 2816 SFP Plus Scom Figure 9 IP Settings Screen Baseline Switch 2816 SFP Plus Password Summar
58. umbers configured like an IP address It is used to create IP address numbers used only within a particular network as opposed to valid IP address numbers recognized by the Internet which must assigned by InterNIC Subnets A network that is a component of a larger network Switch A device that interconnects several LANs to form a single logical LAN that comprises of several LAN segments Switches are similar to bridges in that they connect LANs of a different type however they connect more LANs than a bridge and are generally more sophisticated TCP IP Transmission Control Protocol Internet Protocol This is the name for two of the most well known protocols developed for the interconnection of networks Originally a UNIX standard TCP IP is now supported on almost all platforms and is the protocol of the Internet TCP relates to the content of the data travelling through a network ensuring that the information sent arrives in one piece when it reaches its destination IP relates to the address of the end station to which data is being sent as well as the address of the destination network Traffic Monitoring Enables the monitoring of port traffic by attaching a network analyzer to one switch port in order to monitor the traffic of other ports on the Switch Trunking A method which specifies how to create a single high speed logical link that combines several lower speed physical links VLAN A Virtual LAN is a coll
59. unking Summary page to display all of the membership configuration settings for the created trunks Figure 19 Trunking Membership Screen Figure 20 Trunking Summary Screen ea 3com Summary Summary Password Password Trunk Summary IP Settings IP Settings atus Link Down 4 Fl Port Configuration Port Configuration Admin Oper Speed Duplex Flow Control Status Status Status Status Trunking R amp D Mo ion Beer Enabled Traffic Monitoring an Base Enabled Down 1000 FD None Enabled 10 BASE T 100 BASE TX 1000 BASE T Name Type Autonegotiation VLANs VLANs Link Down 00 FD Link Up Link Down Trunking Down 100 HD None Disabled Traffic Monitoring eddie Cancel First floor System Tools System Tools Link Down Second floor Enabled Down 10 HD None Disabled Link Down 10 BASE T 100 BASE Support Support Site B Tx 1000 BASE T Enabled Down 1000 FD None Enabled wel Link Down REG Link Down Link Down i Link Down Link Down Link Down Link Down eddie Link Down m Port The port number m Status The status refers to the speed and duplex mode of the trunk members m Trunk ID of trunk 31 Traffic Monitoring Use the Traffic Monitoring window to enable port traffic monitoring The Switch
60. urope Middle East and Africa Telephone Technical Support and Repair From anywhere in these regions call 44 0 1442 435529 Antigua 1 800 988 2112 Latin America Telephone Technical Support and Repair From the Caribbean Central and South America call Argentina O 810 444 3COM From the following countries you may use the numbers shown Aruba 1 800 998 2112 Bahamas 1 800 998 2112 Austria 01 7956 7124 Barbados 1 800 998 2112 Belgium 070 700 770 Belize 52 5 201 0010 Denmark 7010 7289 Bermuda 1 800 998 2112 Finland 01080 2783 Bonaire 1 800 998 2112 France 0825 809 622 Brazil 0800 13 3COM Germany 01805 404 747 Cayman 1 800 998 2112 Hungary 06800 12813 Chile AT amp T 800 998 2112 Ireland 01407 3387 Colombia AT amp T 800 998 2112 Israel 1800 945 3794 Costa Rica AT amp T 800 998 2112 Italy 199 161346 Curacao 1 800 998 2112 Luxembourg 342 0808128 Ecuador AT amp T 800 998 2112 Netherlands 0900 777 7737 Dominican Republic AT amp T 800 998 2112 Norway 815 33 047 Guatemala AT amp T 800 998 2112 Poland 00800 441 1357 Haiti 57 1 657 0888 Portugal 707 200 123 Honduras AT amp T 800 998 2112 South Africa 0800 995 014 Jamaica 1 800 998 2112 Spain 9 021 60455 Martinique 571 657 0888 Sweden 07711 14453 Mexico 01 800 849CARE Switzerland 08488 50112 Nicaragua AT amp T 800 998 2112 U K 0870 909 3266 Panama AT amp T 800 998 2112 Paraguay 54 11 4894 1888 You can also obtain support in this region using the following Peru AT amp T 800 998 2112 URL
61. uvent pas tre utilis s comme prises de t l phone conventionnelles standard ni pour la connection de l unit un r seau t l phonique central priv ou public Raccorder seulement connecteurs de donn es RJ 45 systemes de r seaux de t l phonie ou t l phones de r seaux a Front and Rear Panels The front panel of the Switch contains a series of indicator lights LEDs that help describe the state of various networking and connection operations The numbers in this diagram refer to numbered sections in ces prises Front Panel Features on page 9 and Rear Panel Features on Il est possible de raccorder des cables prot g s ou non prot g s page 11 avec des jacks prot g s ou non prot g s a ces prises de donn es WARNHINWEIS Rj 45 Porte Diese Porte sind gesch tzte Datensteckdosen Sie d rfen weder wie normale traditionelle Figure 2 Front and Rear Panels 1 Telefonsteckdosen noch f r die Verbindung der Einheit mit einem _ traditionellem privatem oder ffentlichem Telefonnetzwerk N acom gebraucht werden Nur RJ 45 Datenansdu e Telefonnetzsysteme or Netztelefone an diese Steckdosen anschlie en 7 Entweder gesch tzte oder ungesch tzte Buchsen d rfen an diese a x Datensteckdosen angeschlossen werden The Switch
62. will be copied to the Switch and once this has completed the Switch will restart Although the upgrade process has been designed to preserve your configuration settings 3Com recommends that you make a backup of the configuration beforehand in case the upgrade process fails for any reason for example the connection between the computer and the Switch is lost while the new software is being copied to the Switch The following progress screen displays while the upgrade is taking place Figure 25 Upgrade progress screen 3 3Com Baseline Gigabit Switch Microsoft Internet Explorer Warning Please do not change any configuration settings or reconfigure the system while this save is in progress XFER in progress The upgrade procedure can take a few minutes and is complete when the progress bar has finished running and the Power LED has stopped flashing and is permanently green Make sure that you do not interrupt power to the Switch during the upgrade procedure if you do the software may be corrupted and the Switch may not start up properly afterwards If the Power LED continues to flash after a failed upgrade refer to Problem Solw ing on page 41 Spanning Tree This administrative tool supports the configuration of the Switch to forward or block and discard 802 1D spanning tree BPDU packets Spanning tree is a bridge based system for providing fault tolerance on networks and can be used to detect and disa
63. y Password Change Administration Password IP Settings Hel Port Configuration ARNO nee IP Settings Summary NS New Password Fr ES IP Settings Trunking Confirm Password IP Settings Traffic Monitorin Hel z Cancel Port Configuration Management VLAN 1 ul System Tools Note Password is case sensitive VLANS IP Address Mode Static Apply Trunking a Support TERE 1P Address 1921682244 Traffic Monitoring Cancel System Tools Subnet Mask 255 255 2550 toc our Default Gateway 0 0 00 Support MAC Address 00 0f ch 9c 2a 9c LOG OUT To change the password Enter the current password in the Old Password field m Management VLAN This is the only VLAN through which Enter the new password in the New Password field you can gain management access to the Switch Enter the new password again in the Confirm Password field B WN M Click Apply to save the new password m IP Address Mode Specifies whether IP functionality is enabled via automatic IP configuration manual configuration Port Configuration static or dynamically using DHCP Dynamic Host Configuration Protocol You can use the Basic Port Configuration page to display the current connection status including the link status and m IP Address The IP address of the Switch and the address speed duplex mode of the default VLAN V

3Com 2816-SFP Plus (3C16485) Switch User Manual

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