EIS-408 User`s Manual
Contents
1. Forward Delay Time 4 30 Enter a value between 4 and 30 seconds This value is the time that a port waits before changing from the Spanning Tree Protocol learning and listening states to the forwarding state The is the amount of time this switch will wait before checking to see if it should change to a different state Once you have completed your configuration click on Apply to apply your settings Note You must observe the following rule to configure the Hello Time Forwarding Delay and Max Age parameters 2 x Forward Delay Time 1 sec _ Max Age Time _ 2 x Hello Time value 1 sec Suggested Strategy 1 Select a Hello Time value and compute the rightmost portion of the rule above to get the lower limit of Max Age 2 Select a Forward Delay time and compute the leftmost portion of the rule above to get the upper limit of Max Age 3 Select a Max Age from 6 to 40 seconds that is between the limits computed above Per Port Configuration Spanning Tree System Configuration Per Port Configuration z 01 a Port 02 Port 03 200000 Auto gt x True gt False x Port 04 Port i priority must be a multiple of Ee RSTP Port Status Select the port you wish to configure and you will be able to view the current settings and status of the port Path Cost Enter a number between 1 and 200 000 000 This value represents the cost of the path to the other bridge from this transmitting bridge a2. Lowest Lowest Lowest Lowest Lowest gt Lowest gt Lowest Ponty 160 E 18 E A E ae a Lowest Lowest Lowest Lowest Lowest Lowest Lowest Lowest Priority 24 25 2 27 2 2 3 31 Lowest Lowest gt Lowest Lowest Lowest Lowest z Lowest z Lowest Priority 32 33 4 35 3 37 3 3 owes a owes al Love e Lovesgl Loves gl Lowes flowed moy 0 a e B a 8 6 7 uji Lowest gt Lowest gt Lowest gt Lowest Lowest Lowest gt Lowest Lowest gt Priority 48 49 5O SIL 52 53 34 55 Lowest Lowest Lowest Lowest Lowest Lowest gt Lowest Lowest Priority 56 57 58 539 6 a 6 6 Lowest gt Lowest gt Lowest gt Lowest Lowest gt Lowest gt Lowest gt Lowest Apply COS Priority This is to map the COS priority level 0 7 to port priority 4 levels TOS Priority This is to map the TOS priority level 0 63 to port priority 4 levels IGMP IGMP Snooping IP Address VLAN ID Member Port 235 080 068 083 IGMP Protocol Enable x IGMP Query Enable Apply The IGMP Internet Group Management Protocol is an Internet Protocol that provides a way for an internet device to report its multicast group membership to
3. You can attach a brief description to the switch here Firmware Version Displays the firmware version installed in this switch Kernel Version Displays the kernel version in this switch Hardware Version Displays the hardware version of this switch MAC Address Displays the unique hardware address MAC address assigned by the manufacturer the default setting Once you finish your configuration click Apply to apply your settings Note Always remember to select Save Configuration to save your settings Otherwise the settings you made will be lost when the switch is powered OFF 3 4 Port Mirroring Port mirroring also called port spanning is a tool that allows you to mirror the traffic from one or more ports onto another port without disrupting the flow of traffic on the original port Any traffic that goes into or out of the monitored port s will be duplicated at the mirror port This traffic can then be analyzed at the mirror port using a monitoring device A network administrator will typically utilize this tool for diagnostics or debugging or to fend off attacks a Port Mirraving Made Eisabis fsd Port Mirroring State Select the mirroring mode Disable Rx Tx or Both Rx amp Tx Analysis Port This is the mirror port You can analyze the traffic of all the monitored ports at this port without affecting the flow of traffic on the port s being monitored A network administrator would typically connect a LAN
4. 0 0 0 to 239 255 255 255 Once you finish your configuration click on Apply to apply your settings Security Manager Security Manager User Name admin New Password essee Confirm Password essee Apply You can change the user name and the password here for increased security User name You can key in a new user name here The default setting is root Password You can key in the new password here The default setting is root Confirm Password You need to type in the new password again to confirm it yes know this is annoying Once you finish your configuration click Apply to apply your settings Configuration Backup In the Configuration Backup section you can restore a backup configuration to the switch You also can backup a configuration to the TFTP server as well TFTP Restore Configuration Configuration Backup TFTP Restore Configuration TFTP Backup Configuration fi 92 168 10 66 data dat Apply Help 3 22 You can restore EEPROM values directly from the TFTP server But before you can do that you must have already placed the backup image on the TFTP server which allows you to download this image back to flash memory in the switch TFTP Server IP Address Enter the IP address of your TFTP server here Restore File Name Enter the correct restore file name here Once you finish your configuration click on Apply to apply your settings TFTP Backup Configuration Confi
5. 128kbps 256Kbps 512Kbps 1Mbps 2Mbps 4Mbps and 8Mbps The default value is disable Click on Apply to apply your settings Note Always remember to click on the Save Configuration button to save your settings Otherwise the settings you made will be lost when the switch is powered off IMPORTANT Both QoS and Rate Control settings cannot exist at the same time 3 25 4 Troubleshooting This chapter includes some information for general troubleshooting as follows E Power Connections E Incorrect Connections gt Faulty or Loosen Cables gt Non standard Cables gt Improper Network Technologies LED Indicators Power Connections This unit is powered from 12 48V DC You should verify that the output of your DC supply voltage or AC DC power adapter remains within the required 12 to 48V DC range while under load it should be capable of supplying at least 6W of power for this model IMPORTANT Never exceed 48V DC or you will damage the switch If you are using an AC DC power adapter and the DC IN power indicator PWR of the switch does not light when the power cord is plugged in you may have a faulty power cord Check for loose or broken power connections Also check for power loss or power surges at the AC power outlet Verify that your AC DC adapter is properly sized and outputs the correct voltage under load Incorrect Connections Select Ethernet cables with specifications suitable for your appl
6. 9 125 or 10 125 micrometer single mode fiber cables For single mode the connection distance can be up to 30 km A fiber segment using multi mode must use 50 or 62 5 125 micrometer multi mode fiber cables For multi mode the connection distance can be up to 2 km DIN Rail Mounting Installation The DIN Rail clip is attached to the rear of the switch via two screws This clip may be removed for surface or wall mounting If the DIN Rail clip is not already attached follow these instructions to attach the DIN Rail clip 1 Use the two screws provided to attach the DIN Rail clip to the rear panel of the switch where shown below note that the spring side of the DIN clip is positioned at the top 2 For flat surface or wall mounting you can remove the DIN Rail clip in similar fashion Follow these steps to mount the switch to the DIN rail track 1 Insert the upper end spring side of the DIN rail clip onto the upper lip of the DIN rail track as shown below 2 Push the bottom of the switch inward by tilting it downward until it snaps onto the track Check that the unit is firmly secured to the track 3 To remove the Switch from the track push downward on the unit to compress the spring and pull the bottom outward from the track to disengage the unit and lift it off the track 2 6 Wall Mounting Installation Follow these steps to mount the unit to a wall or other flat surface 1 Use a screwdriver to remove the two sc
7. DHCP Chon Disable r IP Address fiaz 188 10 1 A Subnet Mask 755 755255 0 Fe T L SLR n Aigh Help This function allows users to configure the switch s IP address settings DHCP Client You can elect to Enable or Disable the DHCP Client function When the DHCP Client function is enabled an IP address will be assigned to the switch from the network s DHCP server In this mode the default IP address will therefore be replaced by the one assigned by the DHCP server If the DHCP Client is disabled then the IP address that you specify will be used instead IP Address You can assign the IP address that your network has reserved for your switch If the DHCP Client function is enabled you do not need to define an IP address for the switch as it will be overwritten by the DHCP server and shown here The default IP is 192 168 10 1 Subnet Mask You can assign the subnet mask for the IP address here If the DHCP Client function is enabled you don t need to assign the subnet mask Gateway You can assign the gateway for the switch here The default gateway is 192 168 10 254 Once you finish your configuration click on Apply to apply your settings ON TP Contiguration SNIP Client Daylight Saving Time SMT Greenwich Mean Time Dublin Edinburgh Lisbon London 0 0 0 0 20040101 00 00 20040101 00 00 The Simple Network Time Protocol SNTP is an adaptation of the Network Time Protoc
8. Non standard Cables Non standard and incorrectly wired cables may generate increased network collisions or other network problems which will impair network performance A common Category 5 cable tester is a great tool for troubleshooting network installations and is highly recommended Improper Network Design Verify that your network has been properly designed Most errors simply result from poor quality cable poor cable routing network congestion improper cable length and too many repeater hubs between end nodes Errors may also result from inadvertent data path loops redundant message paths Message loops can generate broadcast storms that can bog down a network There should be only one active message path between any two nodes on a network Excessive collisions may be indicative of a cable that is too long It may also signal the presence of too many repeaters hubs between devices and can also be indicative of a congested network too many nodes in one segment A high number of undersized an fragmented packets can result from interference induced into the network cable by either passing it too close to noisy devices or because of problems with the network devices themselves In these instances check for improper cabling damaged cables or cables routed too closely to noisy equipment or other wiring A high number of oversized packets can result from a bad transceiver excessive cable noise or from a speed mismatch between the s
9. The bridge with the lowest bridge ID number has the highest priority and is selected as the root bridge If you happen to change this value you must reboot the switch to cause the system to assign a new path priority number Note that you increase this switches priority by selecting a lower number A device with a lower number has a higher bridge priority and thus a greater chance of being established as the root bridge of the spanning tree topology Max Age 6 40 Enter a value from 6 to 40 seconds here This value represents the time that a bridge will wait without receiving Spanning Tree Protocol configuration messages before attempting a reconfiguration If this switch is not the root bridge and it has not received a hello message from the root bridge in an amount of time equal to Max Age then this switch will reconfigure itself as a root bridge Then once two or more devices on the network are recognized as a root bridge the devices will renegotiate to set up a new spanning tree topology Hello Time 1 10 Enter a value from 1 to 10 seconds here This is the periodic timer that drives the switch to send out the BPDU Bridge Protocol Data Unit packet to check on the current STP status The root bridge of the spanning tree topology periodically sends out a hello message to other devices on the network to check if the topology is healthy The hello time is the amount of time the root waits between sending hello messages
10. and tag based Virtual LAN s 802 1Q VLAN This tag based VLAN is an IEEE 802 1Q standard which allows VLAN s to be created across different switches see Figure 1 IEEE 802 1Q tag based VLAN s make use of VLAN control information stored in a VLAN header attached to IEEE 802 3 packet frames This tag contains a VLAN Identifier VID that indicates which VLAN a frame belongs to Since a switch only has to check a frame s tag without the need to dissect the contents of the frame this also saves a lot of computing resources within the switch Figure 1 Tagged VLAN 3 6 FLOOR3 FLOOR2 ee ee ee ee ee FLOORI VLAN Configuration VLAN Operation Mode 802 10 Port YLAN ID DEFAULT_ 1 Add Edit Delete Previous Page Next Page Help Basic 1 Click on Add button to add a new tag based VLAN VLAN Configuration VLAN Operation Mode 802 10 7 Basic Port VID Group Name i tisSzOT VLAN ID f 3 2 Group Name You can name your new VLAN grouping here The Group Name is simply a reference for the network administrator to help differentiate VLAN s 3 VLAN ID Enter a VLAN ID here 12 bits Enter any value from 2 to 4094 default value is 1 The VLAN ID is used by the switches to identify the different VLAN s and this is encoded into the IEEE 802 1q frame 4 Select specific ports of this switch to be included in the VLAN from the available ports box Click Add to add ports to the VLAN or
11. mounting panel accessory included 10 C to 70 C 14 F to 158 F 5 to 95 non condensing 40 C to 85 C 54 mm W x 135 mm H x 105 mm D FCC Class A EN61000 4 2 EN61000 4 3 EN61000 4 4 EN61000 4 5 EN6100 4 6 EN61000 4 8 EN61000 4 1 1 UL cUL CE EN60950 consult factory for others IEC60068 2 32 free fall test IEC60068 2 27 shock test IEC60068 2 6 vibration test
12. the Ethernet Ports Connecting to the Fiber Ports DIN Rail Mounting Installation Wall Mounting Installation Introduction Panel Layout Front View O indication ElS 408F Power Input 12 48VDC yi V14 Connecting to the Alarm Output Relay W2 VW2 1 LED indicators PWR RM PWR1 PWR2 FAULT 2 DIP switches to enable port alarms and designate redundant amp Ring Master 3 RJ 45 ports w integrated FDX COL amp LNK ACT LED 4 Fiber ports SC type connector 5 Reset Button At the bottom of this switch is a ground screw and a 6 position plug in terminal block connector with two DC power inputs and a relay connection There is also a DC IN power jack for connecting an optional AC DC power adapter wall transformer type Reset Button The reset button is located on the front panel just below the DIP switches and provides a quick and easy way to restart and restore switch settings to their default values To simply restart the unit press the reset button for 2 seconds and release To restart and restore the switch to its factory default settings press the button and hold for 5 seconds and release Note that you must always restart a switch after setting its Ring Master DIP switch in order to activate the new DIP switch setting or the redundant ring will not operate LED Indicators These switch models have 5 diagnostic LED s and 16 Port LED s located on the front panel The following table describ
13. the backup path The Master switch blocks the member port connected to this backup path Super Ring Enable Super Ring Working Ports 1st Ring Port Poros w 2nd Ring Port Portdd This switch is Master Swtich The settings of Switch 1 super Ring Enable Super Ring Working Ports ist Ring Port Poros 2nd Ring Port Portod4 The settings of Switch 2 3 19 QoS super Ring Enable Super Ring Working Ports 1st Ring Port Port d1 2nd Ring Port Poros The settings of Switch 3 Note Before you connect the backup path last loop segment you need to complete the settings described above for all of the ring switches Otherwise you could create an immediate message loop problem QoS Quality of Service is a broad term that refers to measures taken to specify a guaranteed throughput level QoS with respect to this switch utilizes the prioritization of traffic to accomplish this This section allows you to configure the QoS settings for each port with regard to setting priorities QoS Qos Policy Use an 8 4 2 1 weighted fair queuing scheme C Use a strict priority scheme Priority Type Pormt Ol Port 02 Port 03 Port 04 Port 05 Port 06 Port 07 Port 08 Default Port Priority Port 01 Port 02 Port 03 Port04 Port 05 Port06 Port 07 Port 08 Peg peg peg peg lowers ped Ped Peg Apply QoS Policy You can select a QoS policy rule as follows Use an 8 4 2 1 weigh
14. 04 v Port 03 100TX Up Enable Auto 100 Full 100 Full Symmetric ON 3 3 In the State column you can enable or disable control over this port In Negotiation column you can configure the auto negotiation mode to Auto to enable automatic negotiation or Force to directly specify the speed duplex on this port In the Speed column you can configure the speed of this port In the Duplex column you can configure the full duplex or half duplex mode of this port In Flow Control column Symmetric means that you need to activate the flow control function of the remote network device in order to allow the flow control mechanism of the corresponding port of the switch to work Asymmetric means that you don t need to activate the flow control function of the remote network device as the flow control of the corresponding port of the switch will work anyway Once you finish your configuration click Apply to apply your settings Note Remember to click on the Save Configuration button to save your settings Otherwise the settings you made will be lost when the switch is powered off Switch Settings With the Switch Settings screen you can assign a system name location and brief description You can also view stored information Switch Settings System Name You can use this field to assign a name to the switch System Location You can use this field to specify the switch s physical location System Description
15. 1 1 Switches on the other hand are intelligent devices used to more efficiently connect distributed Ethernet nodes than a hub Unlike a simple hub a switch provides targeted data transfer as it will forward a data packet to a specific port or network segment rather than to all ports thus freeing up bandwidth The ability to target a packet to a specific port increases network throughput and helps to eliminate the collisions that have historically made Ethernet non deterministic So we see that by targeting the data transfer between ports switches act as intelligent repeaters to increase network distances In doing this they actually split networks into separate collision domains at each port Thus switches increase determinism by reducing collisions Switches also increase network bandwidth and throughput as well as provide supplemental error checking on data packets to help ensure the integrity of forwarded data Each port of this switch functions just like any other Ethernet device It is able to receive and decode Ethernet frames test for frame integrity plus assemble and transmit Ethernet frames With Ethernet any device can try to send a data frame out at any time If two devices happen to send a data frame at the same time then a collision may occur The arbitration protocol for carrier transmission access of the Ethernet network is called Carrier Sense Multiple Access with Collision Detect CSMA CD With CSMA CD each device will fi
16. Acromag ki EIS 408FX M amp EIS 408FX S 8 Port Managed Industrial Ethernet Switch 6x 10Base T 100Base TX and 2x 100Base FX User s Manual ACROMAG INCORPORATED Tel 248 624 1541 30765 South Wixom Road Fax 248 624 9234 P O BOX 437 Wixom MI 48393 7037 U S A Copyright 2005 Acromag Inc Printed in the USA Data and specifications are subject to change without notice 8500 786 A05K000 Table of Contents Chapter 1 ITF OCU GIO Micesiceascs cate cetircta a avsacsepiautean eedernadeesecuinceat 1 1 yee ta sce eco aaet A 1 1 Ethernet Switching TeChnology anisini 1 1 Kev Product POALUICS comina ii enwlaniiietirneacrienidandiieneundecniunidaeberins 1 3 PACKAGES CONTENTS reirees tsa eet RERE e ea e EEEREN 1 3 Chapter 2 Hardware Installation ceccisccssecsvedescceeceeteatesucdetencieesasedectadieceseeercideta heteeatek eees 2 1 WILMOCUC HON tract hin eect eee tc eareaiae ee arate 2 1 PaneiEay oUon E nner ore et mnt ere 2 1 MeSCUBUNON scanner eee A aes 2 2 LED are erclite kcamereeney emmerere reer reve rer etre sie omer ret heer renin rere nen ster einer nr weer reer 2 2 DIP OWICNE Seuren ahora aes een smcr cesta naa tu shee oes tess eee ant eee ees 2 3 C onnecung INPUT POW Clr rnui E N a a 2 3 Connecting to the Output Relay ccccceecccessseeceeeeeeeeeseeeeeeeseeeeeeseaeeeees 2 3 Connecting to the Ethernet Ports cc ccccccccsseeceeeseeeeeesseeeeeeseeeeeeeseaeeeees 2 3 Connecting to the Fibe
17. ElS 408FX M and EIS 408FX S are web managed industrial Ethernet rail switches that have six 10 100MBaseTX ports plus two 100BaseFX ports multi mode M or single mode S models and are designed to operate under harsh environmental conditions These switch models also include advanced support for media redundancy and offer communication fail over times less than 300 milliseconds These switch models also have a wide operating ambient range and include redundant power inputs with reverse polarity protection The unit includes a DC IN jack and may be optionally powered from an AC DC wall transformer for Small Office Home Office SOHO applications It is packaged in a rugged IP 30 aluminum enclosure for increased protection from extreme temperature vibration dust and debris This switch has also passed several safety certifications to help ensure safe and reliable data transmission for industrial applications In addition to supporting the Spanning Tree Protocol STP and Rapid Spanning Tree Protocol RSTP this switch includes a proprietary redundant ring technology that allows it to manage a media loop with other switches of the same type A media loop is created when a message sent out on one port is received by the same switch at another port two message paths exist This switch is smart enough to temporarily disable the second path holding it as a backup in case the primary path fails It also includes a normally closed alarm relay
18. Limit packet type Ingress Egress Pornos a Disable Disable wn eae Por07 A0 z Die z Disatie gt Pomos a Disable Disatle Apply Rate limiting is a form of flow control that is used to enforce a strict bandwidth limit at a port You can program separate transmit egress and receive ingress rate limits at each port and even apply the limit to certain packet types as described below Limit packet type You can select the packet type that you want to be filtered The packet types listed here include broadcast multicast unknown unicast packets broadcast multicast packets and broadcast only packets The broadcast multicast unknown unicast packet broadcast multicast packet and broadcast packet only are only for ingress packets incoming packets The egress outgoing rate only supports All packet types Bandwidth Ports 1 8 support port ingress incoming traffic and egress outgoing traffic rate controls For example lets assume port 1 is at 10Mbps you can set its effective transmit egress rate to be 1Mbps and receive ingress rate to be 500 Kbps The switch then uses the packet counter to control the number of packets coming in so that the configured ingress rate can be achieved Ingress Select the ports effective ingress rate here Valid values are 1Mbps 2Mbps 4Mbps 8Mbps 16Mbps 32Mbps and 64Mbps The default value is disable Egress Select the ports effective egress rate here Valid values are
19. Remove to remove ports from the VLAN Then click Next to continue Please note that each VLAN will require a tagged port Different VLAN s use these tagged ports to communicate with one another VLAN Configuration VLAN Operation Mode 802 10 Port 01 Untag x Apply 5 Here you can specify the egress outgoing VLAN frames to be Tagged frames or Untagged frames Click on Apply to apply your settings Port d2 Untag x Tag Indicates that egress outgoing frames are to be VLAN tagged Untag Indicates that egress outgoing frames are not VLAN tagged Port VID WLAN Conliguration WLAN Operaben Moda EF 1 Aiacle Port VLAS ID Port WLAN ID Fork Palit Pari Foii apaty Darat Hal Port VLAN ID PVID Enter the port VLAN ID here The Port VID PVID allows the switches to identify which port belongs to which VLAN To keep things simple it is recommended that you set the Port VID equivalent to the VLAN ID s You can skip tagged ports as tagged ports do not need Port VLAN ID s To reset to default values click Default Once you finish your configuration click Apply to apply your settings Note Always remember to select Save Configuration to save your settings Otherwise the settings you made will be lost when the switch is powered off 3 8 How To Set Up a 802 1q VLAN Reference Example Ground A Group B To illustrate a tag base
20. STP RSTP it additionally requires that all switches in the media ring be of the same brand have the same redundant ring method as most redundant ring algorithms are proprietary and rarely interoperable Since STP and RSTP are standard IEEE protocols switches that employ these two methods of media redundancy are generally interoperable with one another With redundant ring every switch in the ring must support the same redundant ring method and have two ring member ports One switch in this ring is dedicated to serve as Ring Master and one of its two member ports will be temporarily blocked this is referred to as the backup port The other member port is called the working port The other switches in the ring are called working switches and both their member ports are called working ports When a segment of this ring fails the backup port path will automatically become a working port path to recover the failure 3 15 The RM DIP switch of this model is used to configure the switch as Ring Master ON or slave OFF Only one switch may assume the role of Ring Master The Ring Master has the right to negotiate and send commands to other switches in the ring group When the switch is configured to be the redundant Ring Master the ring configuration interface will display a message indicating that this switch is the Ring Master Enable Super Ring Working Ports 1st Backup Ring Port Porto 2nd Backup Ring Port Porto The sys
21. TP IP Security Enable IP Security In this section you can set up to four specific IP addresses to grant authorization for management access to this switch via a web browser Enable IP Security Check this option to enable the IP security function Security IP1 to IP4 You can assign up to four specific IP addresses and only these IP addresses will be granted access to manage this switch via the web browser Once you finish your configuration click on Apply to apply your settings Spanning Tree System Configuration Per Port Configuration Disable 32768 Priority must be a multiple of 4096 2 Forward Delay Time 1 should greater than or queal to Max Age Max Age should be greater than or equal to 2 Hello Time 1 Apply Root Bridge Information If a switch has more than one path to a destination this leads to message loops that can generate broadcast storms and quickly bog down a network The spanning tree was created to combat the negative effects of message loops in switched networks A spanning tree uses a spanning tree algorithm STA to automatically sense that a switch has more than one way to communicate with a node Then it selects the best path primary and blocks the other path s It also keeps track of the blocked path s in case the primary path fails The Spanning Tree Protocol STP introduced a standard method for accomplishing this and this is specified in IEEE 802 1d Later the Rapid Spann
22. To disable the port break alarm at this port notes DIP Switches If the corresponding port alarm DIP switch is set ON when that port connection fails the Fault LED will light up and the alarm relay contacts will close 2 After you set a switch to be the Ring Master in a redundant media ring you must restart this switch to activate the settings see Reset Button or ring redundancy will not operate 3 Only one switch in a media ring should have its Ring Master switch set to ON 4 In order for a redundant ring to operate all switches in the ring must be of the same type employ the same redundant ring method Connecting Input Power IMPORTANT It is good practice to turn off input and load power and unplug the power terminal block before making wire connections Otherwise your screwdriver blade can inadvertently short your terminal connections to the grounded enclosure 1 Insert the positive and negative wires of your DC supply into the V and V contacts of the terminal block connector The acceptable wire range is 12 to 24 AWG 3 OPTIONAL DC IN This switch has an additional power jack for the connection of AC DC power converters wall transformer type designed for office use Be sure that the output voltage is within the required 12 48V DC range and of sufficient capacity to power the unit Refer to switch PWR LED to verify power via the DC IN jack Note If all three power inputs are connected DC IN PWR 1 PWR 2 t
23. a transmission from their port 8 The ports which you set up in step 1 Fi Set up the uplink port to be the tag port Use this software to specify the Tag port for both VLAN A and VLAN B 3 Set the Port VLAN ID Follow the instructions described in Port VLAN ID PVID section to set up the port VLAN ID s for each Untag port It is recommended that each port s PVID be set to the same value as the VLAN ID VID to which it belongs Tag uplink ports do not use port VLAN ID s Set up each port s Port VLAN ID PVID Notice 1 Don t need to set up the uplink port s PVID Notice 2 we suggest that the PVID must be the same as the VLAN ID Port 08 i When you change the Port The port which has been grouped by VLAN ID remember to tagged VLAN press Apply to validate the change 4 Always remember to select Save Configuration to preserve your settings Otherwise your settings will be lost when the switch power is turned OFF 5 Repeat steps 1 4 to set up the second switch the settings for the second switch are the same 6 Since the settings for the second switch are exactly the same as the first one you can use the Configuration Backup function to copy the first switch settings and restore them to the second switch This will reduce the time required to setup the second switch Refer to the Configuration Backup section for more information 3 10 IP Configuration SNTP
24. adjacent routers Multicasting allows one computer on the internet to send data to a multitude of other computers that have identified themselves as being interested in receiving the originating computers data Multicasting is useful for such applications as updating the address books of mobile computer users in the field sending out newsletters to a distribution list and broadcasting streaming media to an audience that has tuned into the event by setting up multicast group membership In effect IGMP manages multicast traffic by making use of switches routers and hosts that support IGMP Enabling IGMP allows the ports to detect IGMP queries report packets and manage multicast traffic through the switch IGMP has three fundamental types of messages as shown below 3 21 Query A message sent from the querier an IGMP router or switch which asks for a response from each host that belongs to the multicast group Report A message sent by a host to the querier to indicate that the host wants to be or is already a member of a given group indicated in the report message Leave A message sent by a host to the querier to indicate that the host has quit as a Group member of a specific multicast group You can enable the IGMP protocol and IGMP Query functions here You will see the information of the IGMP Snooping function in this section including different multicast groups VID and member ports and IP multicast addresses that range from 224
25. analyzer or Netxray device to this port Monitor Port s These are the ports you want to monitor The traffic of all monitored ports will be copied to the mirror ports You can choose a single port or any combination of ports but you can only monitor them in one mirror mode To disable this function set the monitor port to None Once you finish your configuration click on Apply to apply your settings Note Always remember to select Save Configuration to save your settings Otherwise the settings you made will be lost when the switch is powered off VLAN Configuration A Virtual LAN VLAN is a logical grouping of nodes for the purpose of limiting a broadcast domain to specific members of a group but without physically grouping the members together That is a VLAN allows you to isolate network traffic so that only members of the VLAN would receive traffic from the same VLAN members Basically creating a VLAN from a switch is the logical equivalent of physically reconnecting a group of network devices to another Layer 2 switch without actually disconnecting these devices from their original switch This switch supports both port based and 802 1Q tagged based VLAN s The VLAN Operation Mode is set to disable by default VLAN Configuration VLAN Operation Mode Disable 7 VLAN NOT ENABLE 3 5 Port based VLAN The packets that a switch receives and identifies as belonging to a port based VLAN are forwarded only o
26. d VLAN we would like to use all Port 1 s and Port 2 s of switch 1 and switch 2 to form a VLAN Group A and all Port 5 s and Port 6 s to form a VLAN Group B This will restrict VLAN A and VLAN B from communicating with each other except through their port 8 s which they will use to transmit data to each other this is their tagged port The tagged VLAN settings for switch 1 are as follows settings for switch 2 are the same those for switch 1 1 You must specify which port s belong to the VLAN DEFAULT 1 Delete Previous Page NetPage Help Press Add to create a LAN group i it Define your VLAN ID Notice we suggest that the VLAN ID must be the J Enter a group name for the same as the PVID your VEAN graup Porat Use add to decide Pace kana which port belongs to the VLAN group Port VLAN ID Notice The uplink port must be included in each VLAN group Click Add to create VLAN A Enter a group name and a VLAN ID VID for VLAN A you cannot use 1 as a VLAN ID as 1 is reserved for the default VID Use Add to include the ports that are to belong to this VLAN Port 1 and Port 2 Don t forget to include the tagged uplink port uplink Port 8 Repeat Step 1 1 to 1 3 to create VLAN B 3 9 2 Be sure to setup the Tag uplink Port port 8 for our example Thus VLAN A and VLAN B can only communicate with one another vi
27. ectively enable Java applets to use network ports Preparation for Web Management Before you attempt to use the embedded web interface to manage switch operation verify that the switch is properly installed on your network and that every PC on this network can access the switch via the web browser 1 Verify that your network interface card NIC is operational and that your operating system supports the TCP IP protocol 2 Wire DC power to the switch and connect your switch to your computer 3 Make sure that the switch default IP address is 192 168 10 1 4 Change your computer IP address to 192 168 10 2 5 Switch to DOS command mode and ping 192 168 10 1 to verify a normal response time System Login 1 Launch the Internet Explorer web browser on the PC Type http followed by the IP address of your switch Then press Enter The switch login screen will appear next Key in the user name and password The default user name and password is admin Click Enter or OK and the home page of the management interface will appear OP SN a Re IY Once you actually enter the management interface you should change the switch IP address setting according to your network environment consult your network administrator 3 1 Configuration via the Web based Management Interface Menu Bar Introduction Home The home page of this embedded web based management interface Port Status This section is to display the port status a
28. ential for noise and interference 1 2 The industry wide shift from Ethernet hubs to Ethernet switches has dramatically boosted the bandwidth of networks and helped to eliminate congestion problems inherent with the CSMA CD protocol Carrier Sense Multiple Access with Collision Detection Since a switch operates by learning the location of addresses and forwarding messages directly unnecessary traffic is greatly reduced It will use auto negotiation to regulate the speed and duplex of each port based on the capabilities of connected devices These features combine with flow control allow a 100M node to effectively communicate with a 10M node without losing data Connecting one device per switch port also allows two way simultaneous transmission to occur full duplex essentially doubling the bandwidth Further by segmenting a collision domain in this way the need for non deterministic carrier sensing CSMA CD is eliminated The utilization of a store and forward switching algorithm allows each packet to be inspected and corrupt or redundant data to be filtered further eliminating unnecessary traffic that often slows a network down Key Product Features 8 port 10Base T 100Base TX FX managed industrial switch Supports IEEE 802 3 10Base T 802 3u 100Base TX 100Base FX Non blocking store and forward switching architecture 1Mbits embedded buffer memory with 2K entry MAC address table Web based reconfiguration with easy to use GUI Redunda
29. es the function of each LED indicator Any Power is ON PWR1 PWR2 or DC IN No power is being supplied PWR 1 Power 1 is ON No power 1 is being supplied PWR 2 Power 2 is ON No power 2 is being supplied Green Indicates this switch is designated as the redundant Ring Master Indicates switch is NOT the Ring Master FAULT Power RJ45 or fiber port failure has occurred Normal operation no power or port failure Port LED Status Description A network device is detected LNK ACT This port is transmitting to or receiving packets Fiber Ports 7 and 8 from another transmitting device No device is attached The port is operating in full duplex mode FDX COL A collision of packets has occurred Fiber Ports 7 and 8 The port is in half duplex mode or no device is OFF attached The port is operating in full duplex mode Punnd A collision of packets has occurred FDX COL Yellow Port is in half duplex mode or no device is Port Status OFF p attached RJ45 Ports 1 6 A network device is detected PARAG Blinking Port is transmitting to or receiving packets from Green another transmitting device No device is attached DIP Switches The DIP switches are used to set which switch in a redundant media ring is to be the Ring Master and to separately enable the port alarms Set this switch to be the Ring Master Set this switch to NOT be the Ring Master ON To enable the port break alarm at this port ion ON p p
30. guration Backup TFTP Restore Configuration TFTP Backup Configuration fi 92 168 10 66 data dat Apply Help You can save the current flash ROM value from the switch to the TFTP server This will allow you to later go to the TFTP Restore Configuration page to restore this image value back to the switch TFTP Server IP Address Enter the IP address of your TFTP server here Backup File Name Specify the correct backup file name here Once you finish your configuration click on Apply to apply your settings TFTP Update Firmware TFTP Update Firmware li 92 168 10 66 Apply Help In this section you can update to the latest firmware for your switch Before you do so make sure that you have your TFTP server ready and the firmware image for this switch is already installed on the TFTP server IMPORTANT You do not normally need to update your firmware except for special circumstances or when instructed to do so by the factory TFTP Server IP Address Type in the IP address of your TFTP server here Firmware File Name Type in the file name of the firmware image Once you finish your configuration click on Apply to apply your settings Note Always remember to click on the Save Configuration button to save your settings Otherwise the settings you made will be lost when the switch is powered off 3 23 Factory Default Factory Default Please click Default button to restore factory default setting Defau
31. h port and this is the most deterministic mode of operation A Specifications Standards Protocols Technology Transmission Rate MAC Address Table Size Transfer packet size Memory Buffer LED s Network Cables Power Input Power Consumption Back plane Relay alarm current voltage Installation Operating Temperature Operating Humidity Storage Temperature Dimensions EMI EMC Safety Stability IEEE 802 3 10Base T Ethernet IEEE 802 3u 100Base TX Fast Ethernet IEEE 802 3x Flow Control and back pressure IEEE 802 1p class of service IEEE 802 1Q VLAN CSMA CD Carrier Sense Multiple Access w Collision Detection Non blocking store and forward switching architecture 14880pps for 10Base T 148800pps for 100Base TX FX 2K MAC address table 64 bytes to 1522 bytes with VLAN tag 1024K bits m Per port Link Activity Green Full Duplex Collision Orange Yellow m Per unit Power 1 Power 2 Power Green Fault Orange Ring Master Green 10BaseT Twisted pair UTP STP Cat 3 4 or 5 cable EIA TIA 568 100 ohm 100m maximum length 100BaseT X Twisted pair UTP STP Cat 5 cable EIA TIA 568 100 ohm 100 meters maximum length 100BaseFX Select multi mode or single mode cables per model 12 to 48 VDC redundant dual DC power inputs with reverse polarity protection and a removable terminal block for master and slave VDC power inputs 6 watts 1 6Gbps Up to 1A and 24V DC DIN Rail kit attached and wall
32. he switch will be powered from the highest connected voltage The unit will not alarm for loss of DC IN power the alarm function only applies to loss of power at PWR1 or PWR2 Connecting to the Output Relay The alarm output relay contacts are in located at the two middle terminals of the power terminal block between PWR2 and PWR1 as shown in the figure below These contacts are single pole single throw SPST and are energized open circuited for normal operation These contacts will close if the unit is not powered or if either DC power 1 or power 2 fails or if a port connection fails if that port alarm DIP switch is ON The figure below gives an example of how the output alarm relay operates Note The relay contacts are energized open for normal operation and will close for fault conditions This contact does not supply any power and is rated up to 24V DC at 1A 2 3 THE ALARM DEVICE WILL SEND A WARNING SIGNAL TO WARN OF POWER OR PORT FAILURE 24V DC BUZZER FAULT ALARM CONTACTS SPST CONTACTS THE CONTACTS WILL CLOSE IF POWER IS OFF OR IF PWR1 OR PWR2 FAILS OR UPON A PORT LINK FAILURE IF PORT ALARM DIP SWITCH IS ON ARE RATED TO 24VDC 1A 1 Connect to the SPST alarm relay terminals per your application Insert your load wires and tighten the alarm terminal screws to prevent the wires from coming loose These contacts 2 Verify that your load is wired to the center two terminals of this terminal bloc
33. ication In general Ethernet cables are categorized into unshielded twisted pair UTP and shielded twisted pair STP types Shielded cables are recommended In general category 3 4 and 5 Ethernet cables are suitable for systems with 10Mbps transmission speed But for systems at 100Mbps you should only use Category 5 or better Ethernet cables Gigabit ports should use Cat 5 or Cat 5e cables for 1000Mbps connections In addition always make sure that the cable length between device ports does not exceed 100 meters 328 feet The RJ45 ports of this switch automatically detect straight through or crossover cables and then cross connect the transmit and receive channels when you connect the switch to another device This feature does not apply to the fiber port connections You must manually cross connect transmit and receive cables between the fiber ports of connected devices For fiber connections make sure that the fiber cable type matches the fiber model multi mode or single mode For the RJ 45 connectors use the correct UTP or STP cables as required For 10 100M ports use 2 pairs of twisted cables For Gigabit 1000T ports use 4 pairs of twisted cables If the RJ 45 connectors and cables are not correctly connected the link will fail and the green LNK LED will not light Faulty or Loose Cables Visually inspect for loose or faulty connections at all connectors and cables If that does not correct the problem try replacing the cable
34. ices e g switch hub or workstation are less than 100 meters 328 feet Two switches are now up linked together If we change the up link port manually at this time the MAC address table will change as well After the MAC address table changes then the data can be transmitted between these two switches This period of time is called the MAC address table aging time The switch s default aging time is 5 minutes which means that if you manually change the up link port you will need to wait up to 5 minutes before the data can be sent If the aging time is too short the MAC address table will constantly refresh resulting in excess consumption of switch computing resources For this reason a longer aging time is recommended Connecting to the Fiber Ports The automatic MDI MDI X crossover function does not apply to fiber connections as these must be crossed over manually To connect the fiber port on one switch to the fiber port of another switch simply cross connect the transmit channel at each end to the receive channel at the opposite end as illustrated in the figure below SC Connector Cable Wiring SC to SC TX A A RX RX B _ B TX These models have two 100Base FX ports with SC type connectors in multi mode and single mode versions Single mode types have greater distance capability than multi mode types but single mode cable is generally more expensive A fiber segment using single mode cable must use
35. ing Tree Protocol RSTP was adopted and represents the evolution of STP providing much faster spanning tree convergence after a topology change This switch supports both RSTP and STP all switches that support RSTP are also backward compatible with switches that support only STP 3 13 System Configuration Under the System Configuration tab you can change the spanning tree settings and view the Root Bridge Information Note that switches are also referred to as bridges Root bridges are related to the spanning tree RSTP Mode You must first enable the STP or RSTP mode before configuring any related parameters The parameter settings required for both STP and RSTP are the same Note that 802 1d refers to STP mode while 802 1w refers to the faster RSTP mode Priority 0 61440 This value must be in multiples of 4096 and represents the bridge ID number This number is used to identify the root bridge A root bridge continuously transmits network topology information to other bridges switches using the spanning tree protocol and serves to notify other bridges on the network when topology changes are required It is located where the paths that frames take through the network are assigned and usually centrally located to provide the shortest path to other links on the network Like a hub a root bridge will forward frames out to all of its ports Every network should have one root bridge and it is usually assigned the lowest bridge ID
36. ing port and the other port will be blocked and connects to the backup redundant path the upper right corner path is the backup path Super ring Enable Super Ring Working Ports 1st Backup Ring Port Port 03 7 2nd Backup Ring Port Port 04 This switch is set as Backup Master Swtich The settings of Switch 1 super Ring Enable Super Ring Working Ports ist Ring Port Port d1 2nd Ring Port Poros The settings of Switch 2 super Ring Enable Super Ring Working Ports ist Ring Port Poros 2nd Ring Port Por o4 The settings of Switch 3 super Ring Enable Super Ring Working Ports 1st Ring Port Porto 2nd Ring Port Portgg w The settings of Switch 4 Note Before you connect a backup path to complete the loop you need to finish configuring all the ring switches as described above Otherwise it will cause an immediate message loop problem 3 18 Can 3 Switches Form a Super Ring Topology MASTER Switch use port 3 and port 4 to build super ring Switch 3 use port and port 8 to build super ring Backup Path Blocked Switch 2 use port 3 and port 4 to build super ring Here we use three switches to build a simple media ring Each ring switch is connected such that it has two message paths to another Switch 1 is configured to be the master switch and the backup path will be decided by this master switch For our example we specified the path on the right as
37. k After the power relay is wired replace this terminal block into its socket AAA Mm Am Connecting to the Ethernet Ports This switch includes six RJ 45 ports with automatic MDI MDI X crossover and automatic 10 100Mbps data rate sensing for 10Base T or 100Base TX connections Automatic MDI MDI X crossover allows you to connect to other switches hubs or workstations without regard to using straight through or crossover cabling The following figures depict the schematic diagram of straight through and crossover cabling Note that crossover cables simply cross connect the transmit lines at each end to the receive lines at the opposite end Router 3 TD 3 RD 6 TD 56 RD Switch KD e TD 2 RD 2 TD Straight through Cabling Schematic Or PE switch Switch 3 TD 3 TD 6 TD 6 TD 1 RD 1 RD 2 RD 2 RD Crossover Cabling Schematic Note that Ethernet cables use pins 1 2 3 and 6 of an 8 pin RJ45 connector The signals of these pins are converted by the automatic MDI X function as shown in the table below 2 4 Pin MDI X MDI Signals e w w e w w Connect one side of an Ethernet cable into any switch port and connect the other side to your attached device The green LNK LED will light up when the cable is correctly connected Refer to the LED Indicators section for descriptions of each LED indicator Always make sure that the cables between the switches and attached dev
38. l Symmetric specifies that you need to activate the flow control function of the remote network device in order to let the flow control of that corresponding port of the switch to work Asymmetric indicates that you don t need to activate the flow control function of the remote network device The flow control of that corresponding port on the switch will work anyway Single Port Status To get the single port status screen you can click directly on any port number displayed at left to see port specific information for that port and similar to that listed below A http 192 168 1 100 Port 6 Statua m E a T le Port Statistics In this section you can view operation statistics for each port Click Clear to reinitialize and clear any counts Port Statistics re es eb abl oma Teains port 01 2007s Pownfenablel 2 __ SF Ee tS ee Port 03 100Tx Downenable o o o o o o0 Port 04 100Tx DownlEnable o o o o o oO Port 05 100Tx DownlEnable o o o o o o Port 06 100Tx Downlenable o o o o o Oo Port 07 100Fx Downlenable o o o o o o Port 0s 100Fx Downenable o o o o o oO Clear Port Control Simply select the port you want to configure and you will be able to view the current status and settings of the selected port and make changes to port settings as required Port Controls z 01 A sus 02 Enable v Auto v Symmetric ae
39. lt In this section you can reset the switch to its default settings as shown below Default IP address 192 168 10 1 Default Gateway 192 168 10 254 Subnet Mask 255 255 255 0 Other switch settings will be set to disable or none Click on Default to reset your switch to its default settings as shown above Note This provides a quick method for clearing the switch s internal settings However it will not restore the IP address to the default setting If you want to restore all the settings to their default state including the IP address please use the reset button on the front panel of your switch refer to the Reset Button section System Reboot System Reboot Please click Reboot button to restart switch device Reboot System Reboot allows you to reset the switch software Click Reboot to reboot your switch software Note Always remember to click on the Save Configuration button to save your settings Otherwise the settings you made will be lost when the switch is powered off Save Configuration Save Configuration Save Flash Help Save Configuration allows you to save your configuration to non volatile flash memory Powering the switch OFF without clicking Save Configuration will cause any new settings to be lost After selecting Save Configuration click on the Save Flash button to save your new configuration 3 24 Rate Control Rate Control ss
40. nd applicable settings Port Statistics This section is to display the switch port data flow statistics Port Control This section is to configure the switch port settings Switch Settings This section is to display the information of the switch system Port Mirroring This section is to enable and configure port mirroring settings VLAN Configuration This section is to enable and configure VLAN settings IP Configuration This section is to set up the switch IP address SNTP This section is to enable the network time server Simple Network Time Protocol IP Security This section configures the IP address for user access to the switch via the web RSTP This section is to enable and configure Rapid Spanning Tree Protocol RSTP Redundant Ring This section is to enable and configure redundant ring settings QoS This section is to enable and configure QoS Quality of Service settings IGMP This section is to enable and configure the switch s IGMP Snooping function Security Manager This section is used to change the username amp password for access to this interface Configuration Backup This section is to backup the switch settings to a file on your PC TFTP Update Firmware This section is to use the TFTP utility to update the firmware of the switch this is only done when instructed to do so by the factory Factory Default This section is to restore the factory default settings Save Configuration This sec
41. nt Media Ring support with 300ms fail over Supports Spanning Tree Protocol STP and Rapid Spanning Tree Protocol RSTP Provides redundant dual DC power inputs with reverse polarity protection and alarm Provides an optional AC DC wall transformer power input for SOHO applications Includes an alarm relay to signal port break and or power failure RJ45 ports have automatic MDI MDI X crossover Supports IEEE 802 3x flow control for full duplex operation Includes back pressure control for half duplex operation Supports broadcast packet filtering Rugged aluminum case with IP30 rated protection Versatile DIN rail surface and wall mountable design Supports VLAN QoS IGMP Snooping Supports Class of Service COS Supports IGMP with query mode for multi media application Supports SNTP Supports port based VLAN 802 1Q Tag VLAN Package Contents One industrial web managed Ethernet rail switch One DIN Rail clip attached to the switch E One wall mounting plate and six screws Separate accessory Documentation and Software CD Quick Installation Guide If any of the above items are missing or damaged please contact your local sales representative for replacement or repair 1 3 2 Hardware Installation This chapter includes the following installation and configuration information E Introduction gt Panel Layout gt Reset Button gt LED Indicators gt DIP Switches Connecting to Input Power Connecting to
42. ol NTP used to synchronize computer clocks on the internet You can configure the SNTP settings here for the purpose of synchronizing the clocks of several switches on the network SNTP is maintained by the Internet Engineering Task Force IETF SNTP Client Select Enable to acquire the current time from the SNTP server or Disable to disable this feature Daylight Saving Time You can activate the Daylight Savings Time function here UTC Time zone Select the time zone where the switch is located The following reference table lists time zones for different locations 3 11 Local Time Zone Conversion from UTC Time at 12 00 UTC AST Atlantic Standard 4 hours 8 am EDT Eastern Daylight EST Eastern Standard 5 hours 7 am CDT Central Daylight CST Central Standard 6 hours 6 am MDT Mountain Daylight MST Mountain Standard 7 hours 5 am PDT Pacific Daylight PST Pacific Standard 8 hours 4 am ADT Alaskan Daylight CET Central European FWT French Winter MET Middle European 1 hour 1 pm MEWT Middle European Winter SWT Swedish Winter EAST East Australian Standard GST IDLE International Date Line NZST New Zealand Standard 12 hours Midnight NZT New Zealand SNTP Server IP You can set the IP address of the SNTP server here Switch Timer The current time of the switch will be shown here Once you finish your configuration click on Apply to apply your settings IP Security RS
43. r Poris xc c csncc dtc ce tei eed eed ees 2 5 DIN Rail Mounting Installation siiani aa 2 6 Wall Mounting Installation ccccccccseeeecseeeceeeeseeeeeeeeeeseeeeseeeesaeeeeaeeeenaees 2 7 Chapter 3 Web based Management ccc cscccsssecccenseecenneeseeneeecenseeceaseeseansesseasessonneesones 3 1 NIKO GUCHION fesse cis tecctacetet can a E E 3 1 Preparation for Web Manageme n ccccccseececseseeeeeeeeseeeeeseeeeeeseeeeeeas 3 1 System OGM she descisac brent vcd eva rele a eGR dc a eeeas aha otal 3 1 Configuration via the Web based Management Interface 0cceeeee 3 2 Menu Bar Introduction ccccseescccccceesseecccecaesecccessaesseeeeseseeseeeeeeeeeaes 3 2 Contouring VOU SWIG I stop e aE ONON 3 2 Chapter 4 TFOUDIESHO OWING irinna E EEE 4 1 POWEr GCOMMECIIONS arasso Aea E A A 4 1 MEOMECCH GOMMECHONS oeren aaa E A 4 1 Faulty OF LOOSE Cable aS saeeka bata reas ae ae 4 2 NOM Standard Cables srein i ei EA OA E T 4 2 Improper Network Design nseseenssseeessseeessssersssserssserrssseersssserssseerssseees 4 2 STE WONG AOS Tarien O TE A eaeneeatetyeces 4 2 Appendix A SPECITICATONS issn A Ra REGER A 1 Data and Specifications are subject to change without notice Windows is a registered trademark of Microsoft Corporation 1 Introduction E Overview Ethernet Switching Technology E Key Product Features E Package Contents E Installation Guide Overview The
44. rews that secure the DIN Rail clip to the back of the switch 2 Use a screwdriver to attach the wall mounting plate to the rear panel of the switch using the six screws provided Tighten these screws to secure the switch to the wall mounting plate 3 Use the slotted holes at each corner of the wall mounting plate to attach the unit to the wall or other flat surface 4 Toremove the unit from the wall and from the wall mounting plate reverse steps 1 3 2 Web based Management This chapter includes the following information on how to configure and manage your switch via a web based interface E Introduction E Preparation for Web Management E System Login Configuration via the Web based Management Interface gt Menu Bar Introduction gt Configuring Your Switch Introduction Embedded HTML web pages are stored in non volatile memory within the switch These pages allow you to use a standard web browser such as Microsoft Internet Explorer or Mozila to configure and interrogate the switch from anywhere on the network The internal web based management interface supports Internet Explorer 5 0 and Mozila 1 7 5 including the FireFox version These easy to use management screens are based on Java applets to minimize the consumption of network bandwidth and increase your access speed Note IE 5 0 or later versions do not allow Java applets to open sockets by default Users have to directly modify the browser settings to sel
45. rst sense whether the line is idle and available for use If it is the device will begin to transmit its first frame If another device also tries to send a frame at the same time then a collision occurs and both frames are discarded Each device then waits a random amount of time and retries its transmission until it is successfully sent Unlike other Ethernet devices such as an Ethernet host adapter or Network Interface Card NIC the port of a switch does not require its own MAC address During retransmission of a received packet the switch port will instead look like the originating device by having assumed its source address This is why the Ethernet collision domain is said to terminate at the switch port That is a two port switch will effectively break a network into two distinct data links or segments An eight port switch like the Acromag EIS 408FX can break a network into 8 distinct data links or segments also called collision domains Since all Ethernet nodes are able to recognize the occurrence of a collision and since the detection of a collision is principal to the way Ethernet arbitrates media access large domains containing many nodes can become quite cumbersome Thus using an Ethernet switch to subdivide a large network into separate collision domains will certainly help to increase throughput The current tendency in critical industrial control applications is to connect one Ethernet device per switch port This will produce
46. t the specified port Priority Enter a value between 0 and 240 using multiples of 16 This is the value that decides which port should be blocked by priority in a LAN Admin P2P Some of the rapid state transitions that are possible within RSTP depend upon whether the port of concern can only be connected to one other bridge i e it is served by a point to point LAN segment or if it can be connected to two or more bridges i e it is served by a shared medium LAN segment This function allows the P2P status of the link to be manipulated administratively True means P2P is enabled while False means P2P is disabled Admin Edge A port directly connected to the end stations cannot create a bridging loop in the network To configure this port as an edge port set the port to the True state Admin Non STP Status shown here indicates whether this port includes the STP mathematic calculation True means that this port does NOT include the STP mathematic calculation False means that this port includes the STP mathematic calculation Once you finish your configuration click Apply to save your settings Note Always remember to select Save Configuration to save your settings Otherwise your new settings will be lost when the switch is powered off Redundant Ring Redundant ring technology provides a faster redundant media fail over recovery than the Spanning Tree Protocol STP or Rapid Spanning Tree Protocol RSTP But unlike
47. ted fair queuing scheme The switch will follow 8 4 2 1 rate to process packets in a queue from the highest priority to the lowest priority For example the system will process 8 packets with the highest priority in the queue then 4 with middle priority then 2 with low priority and 1 with the lowest priority at the same time Use a strict priority scheme Packets with a higher priority in the queue will always be processed first except when there is no packet with a higher priority Priority Type Each port has five priority types that you may select Port based The port priority will follow the default port priority that you have assigned high middle low or lowest COS only The port priority will only follow the COS priority that you have assigned TOS only The port priority will only follow the TOS priority that you have assigned COS first The port priority will follow the COS priority first and then the other priority rule TOS first The port priority will follow the TOS priority first and then the other priority rule 3 20 Default Priority Type This is to decide the default priority of each port COs Em Jah Tae ees a ioe Ea eal dl Lowest gt Lowest owes Lowest Lowest Lowest Lowestis Lowest Apply TOS EEA Looted smelt pavement arom pees eso ora Lowest gt Lowest Lowest Lowest Lowest Lowest gt Lowest gt Priority oes ales ites Lowest w
48. tem also supports a coupled ring function which allows two or more redundant ring groups to be connected together to provide a redundant backup solution Enable Super Ring You can enable the redundant ring function by checking this option Note You must enable the redundant ring function before connecting any backup path to prevent the inadvertent generation of message loops Working Ports You can assign 2 ports as member ports here One port will be the working port the other will be the backup port the Ring Master will automatically decide which port functions as the working port and which one is the backup port Once you finish your configuration click on Apply to apply your settings Do not complete the ring until you have already setup all the ring switches or message loops may develop immediately IMPORTANT If you enable the redundant ring function Super Ring you must disable RSTP The redundant ring function and the RSTP function cannot both be enabled at the same time How to Set Up a Redundant Ring MASTER Switch 1 use port 3 and port 4 to build super ring i Backup Path Blocked Switch 4 use port and port 8 to build super ring CF f gt Switch 2 use port 1 and port to build super ring Switch 3 use port 3 and 4 port 4 to build super ring Here we use four switches to form a redundant ring topology Switch 1 is configured to be the Ring Master One of its ports will be a work
49. the most deterministic mode of operation as the switch can then operate full duplex with no chance of collisions This ensures determinism helping critical control applications to remain predictable and on time Each port of a switch forwards data to another port based on the MAC address contained in the received data packet frame In order to know which port to forward a data packet to the switch will learn and store the MAC addresses of every device it is connected to along with the associated port number However until the switch actually learns the port a particular address resides at the first packet it forwards this traffic to all ports just like a hub The switch will its internal look up table to quickly determine the location port of a node establish a temporary connection between itself and the node then terminate the connection once a packet is transferred In this way it increases network bandwidth and provides the network determinism required for critical control applications This switch uses a store and forward algorithm to process Ethernet frames That is it first stores the Ethernet frame and examines it for errors before forwarding it to its destination Although this method may seem to increase the forwarding time latency and possibly cause fragmentation it effectively reduces the occurrence of error frames and improves overall throughput This is particularly useful when there is heavy network traffic and or greater pot
50. tion is used to save the switch settings to non volatile memory System Reboot This section is used to reboot the switch Rate Control This section is used to setup each port s bandwidth rate amp packet limitation type Configuring Your Switch Port Status This window allows you to view the status of each port as follows Port Status ca cll al all cag act lee ca Port o3 1007x Up Enable Auto 100 Full 100Full Symmetric ON ON Port 05 100TX 100 Full 100 Full Port 06 100Tx 100 Full Port 07 100Fx 100 Full Port 08 100Fx 100 Full Port Indicates the port number Type Indicates the speed mode of the port for example 100TX means 100 Mbps Link Down indicates that a connection is not established Up indicates a connection has been successfully established State Indicates whether the port is Enabled or Disabled A disconnection is also denoted as Disabled 3 2 Negotiation Auto means that the switch will auto negotiate the speed automatically select 10M or 100M bps and the transmission mode full or half duplex with the remote device Force means that the switch will run according to your own forced settings for soeed and duplex Speed Duplex Configured and Actual Refers to the port speed and duplex setting The Config column shows the configuration set up by you while the Actual column shows the actual speed of the port Flow Control Configured and Actua
51. to signal a port failure if enabled The switch will automatically fail over to a secondary path within 300ms if the primary path is lost These switches also support SC type fiber connections in both single mode and multi mode versions useful for extending transmission distance A web based management interface ensures easy operation and reconfiguration via a standard internet web browser Ethernet Switching Technology To better understand the operation of an Ethernet switch we need to first differentiate it from a hub An Ethernet hub or repeater is a device that is used to simply connect Ethernet nodes Any message at one hub port is repeated on all ports That is hubs forward data packets they receive from a single station to all hub ports As a result all port devices connected to a single hub will share the same bandwidth Then as nodes are added to the network hub they compete for this finite amount of bandwidth and this can cause data collisions to occur making network determinism impossible to attain especially on busy networks Now determinism is a term that is used to describe the ability to guaranty that a packet is sent or received in a finite and predictable amount of time The inherent lack of determinism is the main reason that traditional Ethernet had problems being accepted for use in critical control applications as most control systems have a defined time requirement for packet transmission typically less than 100ms
52. ver the ports assigned to that VLAN Ports not selected as belonging to a VLAN are treated as if they belong to another single VLAN Port based VLAN s are limited to the ports of a single switch and do not allow membership to cross boundaries into other switches as with tag based VLAN s Further if a port based VLAN is enabled any VLAN tagging will be ignored VLAN Configuration VLAN Operation Mode Port Based Add Edit Delete Previous Page Next Page Help Click Add to add a new VLAN group Enter a VLAN group name group IP and then select the members for this VLAN group Click on Apply to adopt the settings Next you will see your VLAN group displayed If the group list is longer than one page you can click Next Page to view other VLAN groups Use the Delete button to delete any unwanted VLAN s Use the Edit button to modify the existing VLAN s Note Always remember to select Save Configuration to save your settings Otherwise the settings you made will be lost when the switch is powered off ee S oe Because the port based VLAN is defined on the switch itself and does not use information contained in the packet frame to define its membership it is restricted to ports of the same switch Effectively only the switch itself knows the architecture of a port based VLAN while the segments connected to the switch ports have no way of knowing the VLAN definition even exists This is the key difference between port
53. witch ports and the connected devices LED Indicators The switch can also be visually monitored via its own front panel LED indicators This can be useful to assist in identifying common problems and to help you find possible solutions Check the redundant PWR1 and PWR2 LED s to verify DC power The PWR LED will light for any connected power PWR1 PWR2 or DC IN Check PWR for power via an AC adapter connected to DC IN If the power LED indicator does not light when the power cord is plugged in you might have a problem with the power outlet or the power cord If the switch simply powers OFF on its own after running for a period of time check for loose power connections power losses or surges at the power outlet You should also verify that your supply voltage remains within the required 12 48VDC range while under load Refer to the port Link LED LNK to verify that a connection has been properly established solid green A blinking green LNK LED indicates communication activity If the LNK LED remains off after making a connection then no device has been detected and the cable may be bad or the connected device may be un powered Refer to the Collision LED COL to monitor for excessive collisions A blinking COL LED indicates that collisions have occurred This LED will be solid ON for a full duplex connection as collisions cannot occur for full duplex A full duplex connection can be achieved by simply connecting one device per switc
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