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WGS3-2620 User`s Manual

1. Interfaces In Octets 19791693 Out Octets 26640496 In Unicast Pkts 150655 Out Unicast Pkts 126648 In Non Unicast Pkts 20932 Out Non Unicast Pkts Al 3333 In Discards 0 Out Discards 0 In Errors 0 Out Etrors 0 Alignment Errors 0 CRC Errors 0 Ethernet Single Collisions D Multiples Collisions 0 Defered Transmissions 0 Late Collisions 0 Excess Collisions 0 Carrier Sense Errors 0 Drop Events 0 F ragments 0 Octets 46432189 Jabbers D Refresh Reset Por Statistics Reset All Statistics Parameter Description Interfaces Group In Octets The total number of octets received on the interface including framing characters In Unicast Pkts The number of subnetwork unicast packets delivered to a higher layer protocol In Non Unicast Pkts The number of non unicast that is subnetwork broadcast or subnetwork multicast packets delivered to a higher layer protocol WGS3 2620 User s Manual 146 In Discards In Errors Alignment Errors Out Octets Out Unicast Pkts Out Non Unicast Pkts Out Discards Out Errors CRC Errors Ethernet Like Single Collisions Deferred Transmissions Excessive Collisions Drop Events Octets Multiple Collisions Late Collisions Carrier Sense Errors Fragments Jabbers The number of inbound packets which were chosen to be discarded even though no errors had been detected to prevent their being deliverable to a higher layer p
2. Menu Description System Information Provides basic system description including contact information Switch Information Shows hardware firmware version numbers power status and expansion modules used in the switch WGS3 2620 User s Manual 14 4 3 1 Displaying System Information Use the System Information screen to display descriptive information about the switch or for quick system identification as shown in the following figure and table System Information System Description 24 2G Layer 3 Fast Gigabit Ethernet Switch System Object ID 1 3 6 1 4 1 10456 1 462 System Up Time 460957 0 day 1 hr 16 min 49 sec System Name eT System Contact System Location lt Apply gt lt Cancel gt The name of this system Use lt TAB gt or arrow keys to move other keys to make changes Parameter Description System System hardware description Description System Object ID MIB II object identifier for switch s network management subsystem System Up Time Length of time the current management agent has been running Note that the first value is centiseconds System Name Name assigned to the switch system System Contact Contact person for the system System Location Specifies the area or location where the system resides Maximum string length is 99 but the screen only displays 45 characters You can use the arrow keys to browse the whole string WGS3 2620 User s Manual 15 4 3 2 Displaying Switch
3. Parameter Description Intf The IP interface on this switch that connects to the upstream neighbor See 4 6 6 1 Displaying Subnet Information Neighbor Address The IP address of the network device immediately upstream for this multicast delivery tree UpTime The time since this device last became a DVMRP neighbor to this switch ExpireTime The time remaining before this entry will be aged out Ver The neighboring routers DVMRP version number RcvRoute The total number of routes received in valid DVMRP packets from this neighbor This can be used to diagnose problems such as unicast route injection as well as giving an indication of the level of DVMRP route exchange activity Note To scroll through the table use the lt Next Page gt and lt Prev Page gt buttons To display a specific page set the page number in the Page field and then select lt Apply gt WGS3 2620 User s Manual 100 4 7 Resetting the System Use the Restart command under the Main Menu to reset the management agent The reset screen is shown below System Restart Menu Restart Option Reload Factory Defaults HO lt Restart gt Restart system with the factory default settings READ SELECT Use lt TAB gt or arrow keys to move lt Space gt to scroll options Parameter Description Reload Factory Defaults Reloads the factory defaults Restart Restarts the switch Note When restarting the system it will always run the Power On
4. 44 4 5 3 2 Configuring STA for Ports The following figure and table describe port STA configuration Spanning Tree Port Configuration Port 1 12 Priority Cost FastForwarding DISABLED DISABLED DISABLED DISABLED DISABLED DISABLED DISABLED DISABLED DISABLED DISABLED DISABLED DISABLED 1 2 3 4 5 6 7 8 9 H p j NEO lt Hext Page gt Go to previous ports panel Use lt TAB gt or arrow keys to move lt Enter gt to select WGS3 2620 User s Manual 45 Parameter Default Description Type Shows port type as 100TX 10BASE T 100BASE TX 1000T 1000BASE T Priority 128 Defines the priority for the use of a port in the STA algorithm If the path cost for all ports on a switch are the same the port with the highest priority that is lowest value will be configured as an active link in the Spanning Tree Where more than one port is assigned the highest priority the port with lowest numeric identifier will be enabled The range is 0 255 Path Cost 100 19 4 This parameter is used by the STA algorithm to determine the best path between devices Therefore lower values should be assigned to ports attached to faster media and higher values assigned to ports with slower media Path cost takes precedence over port priority The default and recommended range is Ethernet 100 50 600 Fast Ethernet 19 10 60 Gigabit Ethernet 4 3 10 The full range is 0 65535 Fast Disabled This parameter is use
5. VLAH Menu IGMP Snooping Configuration Security Menu Change system operation mode Use lt TAB gt or arrow keys to move lt Enter gt to select Description Sets the switch to operate as a Layer 2 switch or as a multilayer routing switch Configures port communication mode mirror ports and port trunking Configures the Spanning Tree Protocol for the bridge or for specific ports GMRP and GVRP for automatic registration of multicast and VLAN groups traffic class priority threshold and address aging time Configures VLAN settings for specific ports and defines the port membership for VLAN groups Configures IGMP multicast filtering Configures the subnets for each VLAN group global configuration for unicast and multicast routing protocols IGMP snooping Restrict access through MAC address or IP address 1 Only displayed for Layer 2 mode 2 Only displayed for Multilayer mode WGS3 2620 User s Manual 33 4 5 1 Setting the System Operation Mode This switch can be set to operate as a Layer 2 switch making all filtering and forwarding decisions based strictly on MAC addresses Or it can be set to operate as a multilayer routing switch whereby it switches packets for all non IP protocols such as NetBUEI NetWare or AppleTalk based on MAC addresses and routes all IP packets based on the specified routing protocol The System Mode menu is shown below Note that the switch will be automatically reboo
6. After VLAN classification the switch checks the lt source MAC address VLAN gt pair in the address table to see whether this pair is known If unknown the switch adds this pair to the address table If known the switch checks the pair for an incorrect Port ID If the PID associated with the pair in the address table is different from the receiving port the switch modifies the PID in the address table e Filtering After learning the address the switch checks If the source or destination port is not in the forwarding state For example if it is in blocking state or has been disabled If the source or destination MAC address is to be filtered If the source PID is the same as the destination PID If any of these conditions are met the switch drops the received frame Otherwise it continues with the forwarding process as described below e Forwardin g During the forwarding process the switch checks whether the lt destination MAC address VLAN gt pair is unknown If unknown the switch floods the received frame to all ports in the VLAN excluding the source port If known the switch forwards the received frame to the port associated with the pair At the same time the switch decides whether a VLAN tag needs to be added to or stripped from the frame depending on the VLAN tagged untagged configuration and VLAN ID for the output port e Aging the switch performs the aging process for the lt MAC addresse
7. History Can be used to create a record of network utilization packet types errors and collisions You need a historical record of activity to be able to track down intermittent problems Historical data can also be used to establish normal baseline activity which may reveal problems associated with high traffic levels broadcast storms or other unusual events Historical information can also be used to predict network growth and plan for expansion before your network becomes too overloaded Alarms Can be set to test data over any specified time interval and can monitor absolute or changing values such as a statistical counter reaching a specific value or a statistic changing by a certain amount over the set interval Alarms can be set to respond to either rising or falling thresholds Events Defines the action to take when an alarm is triggered The response to an alarm can include recording the alarm in the Log Table or sending a message to a trap manager Note that the Alarm and Event Groups are used together to record important events or immediately respond to critical network problems WGS3 2620 User s Manual 176 Appendix A Troubleshooting A 1 Troubleshooting Chart Troubleshooting Chart Symptom Action Cannot connect using Be sure you have configured the agent with a valid IP Telnet Web browser address subnet mask and default gateway Layer 2 or SNMP software e Check that you have a valid network connectio
8. Read Only Disabled Read Only gt Disabled Save Cancel Parameter Description Community Name A community entry authorized for management access The maximum string length is 20 characters Access Management access is restricted to Read Only or Read Write Status Displays the administrative status of entry An entry can only be to enabled or disabled via the console interface WGS3 2620 User s Manual 114 5 6 2 2 Configuring IP Trap Managers The following figure and table describe how to specify management stations that will receive authentication failure messages or other trap messages from the switch Up to 5 trap managers may be entered IP Trap Manager IP Address Community Name Status 0 0 00 Disabled 0 0 00 Disabled 0 0 00 Disabled gt 0 0 00 Disabled gt 0 0 00 Disabled Save Cancel Parameter Description IP Address IP address of the trap manager Community A community authorized to receive trap messages Name Status Displays the administrative status of entry An entry can only be to enabled or disabled via the console interface WGS3 2620 User s Manual 115 5 6 3 User Login Configuration Use the User Configuration screen to restrict management access based on user names and passwords The default administrator admin has write access for parameters governing the on board agent You should therefore assign a password to the administrator as soon as possible and store i
9. Interface Type Indicates IP over Ethernet IP Address Subnet Mask Gateway IP IP State VLAN ID Mgt Access IP address of the switch you are managing The system supports SNMP over UDP IP transport protocol In this environment all systems on the Internet such as network interconnection devices and any PC accessing the agent module must have an IP address Valid IP addresses consist of four numbers of 0 to 255 and separated by periods Anything outside of this format will not be accepted by the configuration program Subnet mask of the switch This mask identifies the host address bits used for routing to specific subnets Gateway used to pass trap messages from the system s agent to the management station Note that the gateway must be defined when operating at Layer 2 if the management station is located in a different IP segment Specifies whether IP functionality is enabled via manual configuration or set by Boot Protocol BOOTP Options include USER CONFIG IP functionality is enabled based on the default or user specified IP Configuration This is the default setting BOOTP Get IP IP is enabled but will not function until a BOOTP reply has been received BOOTP requests will be periodically broadcasted by the switch in an effort to learn its IP address BOOTP values can include the IP address default gateway and subnet mask The VLAN used for management access when Mgmt VLAN is selected See the nex
10. Network Management IEEE802 1D Spanning Tree Protocol IEEE802 1Q VLAN up to 256 VLANs IEEE802 p dual Priority IEEE802 1ad Link Aggregation IEEE802 3x Flow control RFC 1757 RMON Group 1 2 3 9 RFC 2236 IGMP Internet Group Management Protocol SNMP MIB II RFC 1213 RFC 1516 Port Mirroring Static MAC Static IP MAC filtering IP filtering Environment Specification Cabling Protocol Compatibility Power Consumption AC Power Temperature Humidity Emission WGS3 2620 User s Manual 100Mbps Category 5 UTP 4 wire 1000Mbps Category 5 5e or above 8 wire Layer 2 Transparent to higher layer protocols Layer 3 IP RIP 1 RIP 2 DVMRP 65 watts 220 BTU 100 240V AC 50 60Hz auto sensing 0 40 degree C operating 10 90 non condensing FCC Class A CE mark Chapter 2 Installing the Switch Before installing the switch verify that you have all the items listed under Package Contents Also be sure you have all the necessary tools and cabling before installing the switch Note that this switch can be installed on any suitably large flat surface or in a standard EIA 19 inch rack After installing the switch refer to the following chapter to set up its more advanced features such as Spanning Tree Protocol or VLAN port groups 2 1 Package Contents This package includes WGSW 2620 Quick Installation Guide Rack mount bracket kit AC power cord This Manual CD Console cable 2 2 Description of Hardware
11. RFC 1388 There are several serious problems with RIP that you should consider before deciding which routing protocol to use for your network First of all RIP version 1 has no knowledge of subnets both RIP versions can take a long time to converge on a new route after the failure of a link or router during which time routing loops may occur and its small hop count limitation of 15 restricts its use to smaller networks Moreover RIP version 1 wastes valuable network bandwidth by propagating routing information via broadcasts nor does it consider enough network variables to make the best routing decision 6 2 7 Non IP Protocol Routing The switch supports IP routing only Non IP protocols such as IPX and AppleTalk can not be routed by this switch and will be confined within their local VLAN group unless bridged by an external router To coexist with a network built on other multilayer switches the subnetworks for non IP protocols must follow the same logical boundary as that of the IP subnetworks A separate multi protocol router can then be used to link the subnetworks by connecting to one port from each available VLAN on the network WGS3 2620 User s Manual 166 6 3 Virtual LANs Switches do not inherently support broadcast domains which can lead to broadcast storms in large networks that handle a lot of traffic such as NetBUEI or IPX In conventional networks with routers broadcast traffic is split up into separate domains t
12. Root Cost Root Port Configuration Changes Topology Up Time 32768 2 20 15 1 32768 0010B5489400 O O 1 104148 0 day O hr 17 min 21 sec Return to previous panel Use lt Enter gt to select WGS3 2620 User s Manual 81 Parameter Priority Hello Time Max Age Forward Delay Hold Time Designated Root Root Cost Root Port Configuration Changes Topology Up Time Description Device priority is used in selecting the root device root port and designated port The device with the highest priority becomes the STA root device However if all devices have the same priority the device with the lowest MAC address will then become the root device The time interval in seconds at which the root device transmits a configuration message The maximum time in seconds a device can wait without receiving a configuration message before attempting to reconfigure The maximum time in seconds the root device will wait before changing states i e listening to learning to forwarding The minimum interval between the transmission of consecutive Configuration BPDUs The priority and MAC address of the device in the Spanning Tree that this switch has accepted as the root device The path cost from the root port on this switch to the root device The number of the port on this switch that is closest to the root This switch communicates with the root device through this port If there is n
13. STA Port Configuration Port 1 2 3 Parameter Type 100BASE TX 100BASE TX 100BASE TX 100BASE TX 100BASE TX 100BASE TX 100BASE TX 100BASE TX 100BASE TX 100BASE TX Default Priority Cost FastForwarding 12800 ig T Enabled i jig I Enabled 12800 Ig T Enabled 128 jig I Enabled 128 Ig I Enebled i200 Ig I Enabled 12800 ig T Enabled 2g Ig T Enabled 128 Ig T Enabled 128 Ig I Enabled Description Type Priority Path Cost Fast Forwarding 128 100 19 4 Enabled Shows port type as 100BASE TX 10BASE T 100BASE TX 1000BASE T 1000BASE T Defines the priority for the use of a port in the STA algorithm If the path cost for all ports on a switch are the same the port with the highest priority i e lowest value will be configured as an active link in the Spanning Tree Where more than one port is assigned the highest priority the port with lowest numeric identifier will be enabled The range is 0 255 This parameter is used by the STA algorithm to determine the best path between devices Therefore lower values should be assigned to ports attached to faster media and higher values assigned to ports with slower media Path cost takes precedence over port priority The default and recommended range is Ethernet 100 50 600 Fast Ethernet 19 10 60 Gigabit Ethernet 4 3 10 The full range is 0 65535 This parameter is used to enable disabled the Fast Spanning Tree mode fo
14. System Description Support Send mail to technical support Contact Contact to Web Page If this is your first time to access the management agent you should define a new Administrator name and password record it and put it ina safe place Select Mgt Setup User Cfg from the Main Menu and then enter a new name and password for the Administrator Note that user names and passwords can consist of up to 11 alphanumeric characters and are not case sensitive Note Your are allowed three attempts to enter the correct password on the third failed attempt the current connection is terminated WGS3 2620 User s Manual 104 5 2 2 Configuration Options Configurable parameters have a dialog box or a drop down list Once a configuration change has been made on a page be sure to click on the Apply button at the bottom of the page to confirm the new setting The following table summarizes the Web page configuration buttons Web Page Configuration Buttons Button Action Apply Sets specified values in the SNMP agent Cancel Cancels specified values prior to pressing the Apply button Refresh Immediately updates values from the SNMP agent Notes 1 To ensure proper screen refresh be sure that Internet Explorer 5 0 is configured as follows Under the menu Tools Internet Options General Temporary Internet Files Settings the setting for item Check fo r newer versions of stored pages should be E
15. The Routing Information Protocol is used to specify how routers exchange routing table information See 6 2 6 1 RIP and RIP 2 Dynamic Routing Protocols When RIP is enabled on this routing switch it broadcasts RIP messages to all devices in the network every 30 seconds and updates its own routing table when RIP messages are received from other routers RIP messages contain both the IP address and a metric for each destination network it knows about and the metric indicates the number of hops from this device to the destination network You can use the following menu to specify authentication the protocol used for sending or receiving routing messages on this port the default metric used in calculating the best path and enable or disable Poison Reverse Modify RIP Configuration Authentication Type No Authentication Authentication Key Send Type RIPv1 Broadcast gt Receive Type Rm Default Metric bo Poison Reverse Enabled gt Save Reset Cancel WGS3 2620 User s Manual 137 Parameter Description Authentication Authentication can be used to ensure that routing information comes Type from a valid source Authentication A simple password must be provided if authentication is enabled An Key Send Type authentication string is case sensitive and can be up to 16 characters The protocol used for traffic sent out this port RIP1 Broadcast Route information is broadcast to other router
16. The base unit contains 24 10BASE T 100BASE TX and 2 1000BASE T ports All the 24 10 100M RuJ 45 ports operate at 10 or 100 Mbps and support auto negotiation of speed duplex mode i e half or full duplex and flow control While the 1000BASE T module operates at 1Gbps and supports auto negotiation or Full duplex mode and flow control Note that when using auto negotiation speed transmission mode or flow control can be automatically set if this feature is also supported by the attached device Otherwise these items can be manually configured for any connection The unit also includes a display panel for key system and port indications that simplify installation and network troubleshooting The following figures show the components of this switch system WGS3 2620 User s Manual 3 2 3 Mounting the Switch This switch can be placed directly on your desktop or mounted in a rack Before you start installing the switch make sure you can provide the right operating environment including power requirements sufficient physical space and proximity to other network devices that are to be connected Verify the following installation requirements e Power requirements 100 to 240 V AC 4 10 at 50 to 60 Hz 3Hz The switch s power supply automatically adjusts to the input voltage level e The switch should be located in a cool dry place with at least 10 cm 4 in of space on the sides for ventilation e Place the switch out of dir
17. Therefore when DVMRP routing is enabled for a subnet on this switch the switch will automatically enable IGMP 6 4 3 GMRP Protocol GARP Multicast Registration Protocol GMRP allows network devices to register end stations with multicast groups GMRP requires that any participating network devices or end stations comply with the IEEE 802 1p standard Compliant end stations can request to receive traffic from a multicast group simply by issuing a join packet that includes a known multicast address When the join packet reaches a port on the switch it configures this port to receive multicast traffic for the requested group and then issues a similar join packet to all other ports on the switch informing them that incoming multicast traffic for the stated group is to be forwarded to the requesting port 6 4 4 DVMRP Routing Protocol The Distance Vector Multicast Routing Protocol DVMRP behaves somewhat similar to RIP A router supporting DVMRP periodically floods its attached networks to pass information about supported multicast services along to new routers and hosts Routers that receive a DVMRP packet send a copy out to all paths except the path back to the origin These routers then send a prune message back to the source to stop a data stream if the router is attached to a LAN that does not want to receive traffic from a particular multicast group However if a host attached to this routing switch issues an IGMP message indicating that
18. User Configuration Remember to record them in a safe place You should also set the community string which controls access to the on board SNMP agent via in band management software SNMP Configuration The items provided by the Management Setup Menu are described in the following sections Menu Description Network Includes IP setup and HTTP setup for the on board Web agent Configuration Serial Port Sets communication parameters for the serial port including baud Configuration rate console time out and screen data refresh interval See Configuring the Serial Port SNMP Activates authentication failure traps and configures communities Configuration and trap managers User Configuration Sets the user names and passwords for system access TFTP Download Downloads new version of firmware to update your system in band Configuration File Saves or restores configuration data based on the specified file Only displays when the switch is set to Layer 2 mode WGS3 2620 User s Manual 112 5 6 1 Changing the Network Configuration Layer 2 Mode Use the Network Configuration menu to set the bootup option configure the switch s Internet Protocol IP parameters The screen shown below is described in the following table Parameter IP Configuration IP Address 192 168 1201 Subnet Mask 255 255 2550 0 Gateway IP 0000 IP State User Configured Mgt Access AIVLANs Apply Cancel Description
19. VLAH Forwarding Information 12345678901234567890123456 SSSSSS SSSSSSS SSSSSSSSSSS S Static S S D Dynamic Page lt Apply gt Total 1 Pages lt OK gt lt Prev Page gt lt Hext Page gt Enter page number than press Apply to see VLAN group Use lt TAB gt or arrow keys to move other keys to make changes Note To scroll through the dynamic registration table use the lt Next Page gt and lt Prev Page gt buttons To display a specific page set the page number in the Page field and then press lt Apply gt WGS3 2620 User s Manual 87 4 6 5 IP Multicast Registration Table This table displays all the multicast groups active on the switch including the multicast IP address and the corresponding VLANs IP Multicast Registration Table VLAN Multicast IP 12345678901234567890123456 Learned by 224 1 1 1 M IGMP Page lt Apply gt Total 0 Pages lt OK gt lt Prev Page gt lt Next Page gt The page number Use lt TAB gt or arrow keys to move other keys to make changes Parameter Description VLAN A VLAN with host members that have asked to receive the indicated multicast service Multicast IP A source IP address that represents a specific multicast service Multicast Group The ports that belong to the indicated VLAN group Port Lists Learned by Shows if this entry was learned dynamically or via IGMP Snooping An entry is learned dynamically if a multicast packet was seen crossing the port or via IGMP Snooping
20. VLAN tagging on outgoing frames GVRP and GMRP status and filtering for incoming frames for VLAN groups this port does not belong to Port Number GARP Configuration Join Time 20 Centiseconds Leave Time 60 Cenes Leave All Time 1000 Gerrie VLAN and Priority Port ID I Port Default Priority gal VLAN Tagging Rx All Tx Untag GYRP Enabled gt GMRP Enabled Ingress Filtering Disabled E Parameter Default Description GARP Group Address Registration Protocol is used by GVRP and Configuration GMRP to register or deregister client attributes for client services within a bridged LAN Join Time 20 The interval centiseconds between transmitting requests queries to participate in a group Leave Time 60 The interval centiseconds a port waits before leaving a group This time should be set to more than twice the join time This ensures that after a Leave or LeaveAll message has been issued the applicants can rejoin before the port actually leaves the group WGS3 2620 User s Manual 130 Leave All 1000 Time The interval centiseconds between sending out a LeaveAll query message for group participants and the port leaving the group This interval should be considerably larger than the Leave Time to minimize the amount of traffic generated by nodes rejoining the group 1 The default values for the GARP timers are independent of the media access method or data rate These v
21. larger than the Leave Time to minimize the amount of traffic generated by nodes rejoining the group 1 The default values for the GARP timers are independent of the media access method or data rate These values should not changed unless you are experiencing some difficulties with GMRP or GVRP registration deregistration Parameter Default Description VLAN and Priority These fields set the default values for VLANs port priority GVRP and GMRP Port VID 1 The VLAN ID assigned to untagged frames received on this port Port Default 0 Set the default ingress priority to any value beneath the Priority 2 priority threshold to specify the low priority queue or to any value equal to or above this threshold to specify the high priority queue VLAN Layer 2 Indicates whether or not VLAN tags will be included on Tagging 3 Rx All frames passing through this port The options include Tx All Rx All Accepts all frames tagged or untagged Multilayer Rx Untag Only accepts untagged frames Rx All Tx All If PVID and frame tag are same sends tagged Tx Untag frame otherwise sends untagged Tx Untag Sends only untagged frames This switch supports Quality of Service QoS by using two priority queues with Weighted Fair Queuing for each port Inbound frames that do not have VLAN tags are tagged with the input port s default ingress user priority and then placed in the appropriate priority queue at the output port The default priorit
22. on Chapter Advanced Topics When RIP is enabled on this routing switch it broadcasts RIP messages to all devices in the network every 30 seconds and updates its own routing table when RIP messages are received from other routers RIP messages contain both the IP address and a metric for each destination network it knows about where the metric indicates the number of hops from this device to the destination network You can use the following menu to specify authentication the protocol used for sending or receiving routing messages on this port the default metric used in calculating the best path and enable or disable Poison Reverse Subnet Configuration Modify RIP Configuration Authentication Type No Authentication Authentication Key Send Type RIP1 Broadcast Receive Type RIP1 Default Metric O Poison Reverse lt Apply gt Poison reverse READ SELECT Use lt TAB gt or arrow keys to move lt Space gt to scroll options WGS3 2620 User s Manual 58 Parameter Authentication Description Authentication can be used to ensure that routing information comes Type Authentication Key Send Type Receive Type Default Metric Poison Reverse from a valid source A simple password must be provided if authentication is enabled An authentication string is case sensitive and can be up to 16 characters The protocol used for traffic sent out this port RIP1 Broadcast Route information i
23. the following screen is displayed User Configuration Add User Password Access Right Console Access Telnet Access HTTP Access Use lt TAB gt or arrow keys to move other keys to make changes Parameter Description User Name Specifies a user authorized management access to the switch via the console Telnet or HTTP Password Passwords can consist of up to 11 alphanumeric characters and are not case sensitive Access Right ADMIN Read Write for all screens GUEST Read Only for all screens Console Access Authorizes management via the console Telnet Access Authorizes management via Telnet HTTP Access Authorizes management via HTTP that is Microsoft Internet Explorer 4 0 or later version These entries can consist of up to 15 alphanumeric characters and are not case sensitive WGS3 2620 User s Manual 29 4 4 5 Downloading System Software Use the TFTP Download menu to load software updates to permanent flash ROM in the switch The download file should be a 3 binary file or image file otherwise the agent will not accept it The success of the download operation depends on the accessibility of the TFTP server and the quality of the network connection After downloading the new software the agent will automatically restart itself Parameters shown on this screen are indicated in the following figure and table TFTP Download Download Server IP 203 70 249 14 Download Filename Download Option R
24. 08 gt gt lt lt 21 09 gt gt lt lt 22 10 gt gt lt lt 23 11 gt gt lt lt 24 12 gt gt Four ports as a trunk lt lt 13 01 14 02 gt gt lt lt 15 03 16 04 gt gt lt lt 17 05 18 06 gt gt lt lt 19 07 20 08 gt gt lt lt 21 09 22 10 gt gt lt lt 23 11 24 12 gt gt Eight ports as a trunk lt lt 13 01 14 02 15 03 16 04 gt gt lt lt 17 05 18 06 19 07 20 08 gt gt lt lt 21 09 22 10 23 11 24 12 gt gt Gigabit Ethernet Ports as a trunk lt lt 25 26 gt gt e Ports can only be assigned to one trunk e The ports at both ends of a connection must be configured as trunk ports e The ports at both ends of a trunk must be configured in an identical manner including communication mode and VLAN assignments e None of the ports in a trunk can be configured as a mirror or monitor port e All the ports in a trunk have to be treated as a whole when moved from to added or deleted from a VLAN e The Spanning Tree Algorithm will treat all the ports in a trunk as a whole e Enable the trunk prior to connecting any cable between the switches to avoid creating a loop WGS3 2620 User s Manual 38 You can use the Port Trunking Configuration screen to set up port trunks as shown below Layer 2 Menu Port Trunking Configuration Index Port Count Port Trunki 14 Trunk2 15 Trunk3 17 05 18 06 19 OF 20 08 Add Link Aggregation Use lt TAB gt or arrow keys to move lt Enter gt to s
25. 2 5 Proxy ARP Note that Proxy ARP must be enabled globally for the switch before this setting can take effect See 5 7 5 2 Protocol Configuration RIP Routing Information Protocol for unicast routing DVMRP Distance Vector Multicast Routing Protocol Note To add an IP interface specify the interface settings in the dialog box at the bottom of the screen and press Add To modify an interface click on the edit icon for the required entry update the interface settings in the dialog box at the bottom of the screen and press Save To delete an interface click on the edit icon for the required entry and press Delete WGS3 2620 User s Manual 136 Adding an IP Interface To add an IP interface specify the interface settings in the dialog box at the bottom of the screen Configure the IP address assign an existing VLAN group to this interface enable the required routing protocols and then press Add To configure the unicast and multicast routing protocols you must edit an existing entry as described in the following section and press the Advanced button for RIP or DVMRP Modifying an IP Interface To modify an IP interface click on the edit icon for the required entry update the interface settings in the dialog box at the bottom of the screen use the Advanced button to configure the unicast and multicast routing protocols as described in the following sections and then press Save Configuring RIP
26. 253 0 1 192 168 1 150 Indirect 1 Destination Network Destination Mask Next Hop Routing Metric Add Delete Cancel Parameter Description Destination A destination network subnet or host Network Destination The subnet mask that specifies the bits to match A routing entry will be Mask used for a packet if the bits in the address set by the destination mask match the Destination Network VLAN The VLAN within which the gateway or destination address resides Next Hop The IP address of the router at the next hop Note that the network portion of the next hop must match that used for one of the subnet IP interfaces configured on this switch See 5 7 5 1 Subnet Configuration Type The IP route type for the destination network This switch supports the following types Direct A directly connected subnetwork Indirect A remote IP subnetwork or host address Routing A relative measure of the path cost from this switch to the destination Metric network This value depends on the specific routing protocol Note To add a static route specify it in the dialog boxes at the bottom of the screen and press Add To delete a static route click on the edit icon for the required entry and press Delete WGS3 2620 User s Manual 142 5 7 5 5 Configuring the Default Route Defines the router to which this switch will forward all traffic for unknown networks The default route can be learned from RIP protocol or ma
27. 3 You just need to provide the network addresses for each virtual interface and the traffic between different subnetworks will be routed by Layer 3 switching Inter subnet traffic Layer 3 switching VY fr Intra subnet traffic Layer 2 switching VLAN Configuration for Layer 3 Note When operating the switch in multilayer mode all ports should be defined as untagged and no VLANs can overlap You should also assign the same default PVID to the ports at both ends of a link if the VLAN must cross the switches See VLAN Tagging configuration These limitations will be removed for future firmware versions WGS3 2620 User s Manual 162 6 2 2 IP Switching IP Switching or packet forwarding encompasses tasks required to forward packets for both Layer 2 and Layer 3 as well as traditional routing These functions include e Layer 2 forwarding switching based on the Layer 2 destination MAC address e Layer 3 forwarding routing Based on the Layer 3 destination address Replacing destination source MAC addresses for each hop Incrementing the hop count Decrementing the time to live Verifying and recalculating the Layer 3 checksum If the destination node is on the same subnetwork as the source network then the packet can be transmitted directly without the help of a router However if the MAC address is not yet known to the switch an Address Resolution Protocol ARP packet with the destination IP address
28. Assignments EIA Circuit CCITT Description Switch s PC DB9 DTE Modem Signal Signal DB9 DTE Pin DB25 DCE Direction Pin Pin DTE DCE CF 109 DCD Data 1 1 8 Pare Carrier Detected BB 104 RxD 3 2 3 Brees Received Data BA 1033 TxD 2 3 a ee gt Transmitted Data CD 108 DTR Data 6 4 20 gt Terminal Ready AB 102 SG Signal 5 5 A a Ground CC 107 DSR Data 4 6 6 PE Set Ready CA 105 RTS 8 7 4 e gt Request to Send CB 106 CTS 7 8 5 PE Clear to Sen d CE 125 RI Ring 9 9 22 PEE Indicator B 3 Console Port to 9 Pin COM Port on PC Switch s 9 Pin Serial Port CCITT Signal PC s 9 Pin COM Port 1DCD Cee eee DCD 1 2TXD RXD gt 2 3 RXD lt TXD 3 4DSR were eee DTR 4 5SGND SGND 5 6DTR S DSR gt 6 7 CTS lt RTS 7 8 RTS si weer CTS gt 8 9R O Sl e RI 9 WGS3 2620 User s Manual 181 B 4 Console Port to 25 Pin DCE Port on Modem Switch s 9 Pin CCITT Signal Modems 25 Pin Serial Port DCE Port 1 lt DCD 8 3 lt RXD 3 ee Wee TXD gt 2 6 DTR gt 20 5 _ SGND 7 4 lt DS
29. Description System Name Name assigned to the switch system Object ID MIB II object identifier for switch s network management subsystem Location Specifies the area or location where the system resides Contact Contact person for the system System Up Time Length of time the current management agent has been running Maximum string length is 99 but the screen only displays 45 characters You can use the arrow keys to browse the whole string WGS3 2620 User s Manual 110 5 5 2 Displaying Switch Version Information Use the Switch Information screen to display hardware firmware version numbers for the main board as well as the power status and modules plugged into the system 5 5 2 1 Main Board Switch Information Hardware Version RO1 Firmware Version V1 01 Serial Number 00 304F 18 E640 Number of Ports 26 Power Status Active G1 1O00MBase T G2 1000MBase T Parameter Description Hardware Version Hardware version of the main board Firmware Version System firmware version in ROM Serial Number Serial number of the main board Number of Ports Number of ports on this switch Power Status Power status for the switch Fan Power Status Shows if power to the fan is active or inactive G1 G2 Show Connected type of G1 and G2 WGS3 2620 User s Manual 111 5 6 Management Setup Menu After initially logging onto the system you can use this menu to configure access rights You should set user names and passwords
30. GMRP requires that any participating network devices or end stations comply with the IEEE 802 1p standard ICMP Router Discovery ICMP Router Discovery message is an alternative router discovery method that uses a pair of ICMP messages on multicast links It eliminates the need to manually configure router addresses and is independent of any specific routing protocol Internet Control Message Protocol ICMP Commonly used to send echo messages i e Ping for monitoring purposes IEEE 802 1D Specifies a general method for the operation of MAC bridges including the Spanning Tree Protocol WGS3 2620 User s Manual 183 IEEE 802 1Q VLAN Tagging Defines Ethernet frame tags which carry VLAN information It allows switches to assign end stations to different virtual LANs and defines a standard way for VLANs to communicate across switched networks IEEE 802 3ac Defines frame extensions for VLAN tagging Internet Group Management Protocol IGMP A protocol through which hosts can register with their local router for multicast services If there is more than one multicast router on a given subnetwork one of the routers is elected querier and assumes the responsibility of keeping track of group membership IGMP Snooping Listening to IGMP Query and IGMP Report packets transferred between IP Multicast Routers and IP Multicast host groups to learn IP Multicast group members In Band Management Management of the network from a
31. IP subnetwork Beast A subnetwork broadcast address Mcast An IP multicast address Invalid A illegal IP address to be filtered The route was learned in one of the following ways Local Manually configured Mgmt Set via SNMP ICMP Obtained via ICMP redirect RIP Learned via RIP protocol Other Learned by some other method The route tag represents the device that originated this routing entry The number of seconds elapsed since this route was last updated or otherwise determined to be correct This entry only applies to RIP A relative measure of the path cost from this switch to the destination network This value depends on the specific routing protocol 154 5 8 6 4 Multicast Table You can use this menu to display all the multicast groups currently active on this switch the IGMP cache the multicast forwarding cache and DVMRP routing information Parameter Description IP Multicast Displays all active multicast groups including the multicast IP address Registration and the corresponding VLANs See Table 5 8 5 IP Multicast Registration Table IGMP Cache Displays all active multicast groups including the IP interface each entry appears on the entry age and the time left before the entry is aged out Multicast Displays all active multicast groups including the multicast source Forwarding address the upstream neighbor the multicast routing protocol and the Table entry age DVMRP Displays the
32. Manual 108 IP Multicast Displays all the multicast groups active on this switch including the Registration Table multicast IP addresses and corresponding VLANs ba IP Menu Displays all the IP subnets used on this switch as well as the corresponding VLANs and ports Also contains the ARP table routing table and multicast table Restart System Restarts the system with options to reload factory defaults Menu 1 Only displays when the switch is set to Layer 2 mode 2 Only displays when the switch is set to multilayer mode WGS3 2620 User s Manual 109 5 5 System Information Menu Use the System Information Menu to display a basic description of the switch including contact information and hardware firmware versions Menu Description System Information Provides basic system description including contact information Switch Information Shows hardware firmware version numbers power status and expansion modules used in the stack 5 5 1 Displaying System Information Use the System Information screen to display descriptive information about the switch or for quick system identification as shown in the following figure and table System Information System Description 24 2G Layer 3 Fast Gigabit Ethernet Switch System Object ID 1 3 6 1 4 1 10456 1 462 System Up Time 0dO0h6 min 29s System Name System Contact System Location Ams caen Parameter Description System System hardware description
33. Page gt lt Prev Page gt Add static address entry Use lt TAB gt or arrow keys to move lt Enter gt to select Parameter Description Address The MAC address of a host device attached to this switch Port The switch port the host device is attached to Note To assign a MAC address to a specific port use lt Add gt To delete or modify an address highlight it with the cursor and press Enter To scroll through the address table use the lt Next Page gt and lt Prev Page gt buttons To display a specific page set the page number in the Page field and then press lt Apply gt WGS3 2620 User s Manual 40 4 5 2 5 Configuring the Static Multicast Address Table The Static Multicast Address Table can be used to assign a destination MAC address and the corresponding ports to the VLAN group used for a specific multicast service Static multicast addresses are never aged out and traffic with these addresses can only be forwarded to ports specified in this table Add Multicast Address Entry Address 12345678901234567890123456 1 61 60 60 60 60 60 M lt Cancel gt Save data and return to previous panel Use lt TAB gt or arrow keys to move lt Enter gt to select Parameter Description VLAN The VLAN corresponding to this multicast service Address The destination MAC address for a multicast service Port The ports to which this multicast traffic can be forwarded Note To assign a destination MAC address to one or mor
34. Self Test It will also retain all system information unless you select to reload the factory defaults 4 8 Logging Off the System Use the Exit command under the Main Menu to exit the configuration program and terminate communications with the switch for the current session WGS3 2620 User s Manual 101 Chapter 5 Web Interface 5 1 Web Based Configuration and Monitoring As well as the menu driven system configuration program this switch provides an embedded HTTP Web agent Using a Web browser you can configure the switch and view statistics to monitor network activity The Web agent can be accessed by any computer on the network using Internet Explorer 4 0 or above Web browser Note Current firmware version does not support Netscape Navigator Prior to accessing the switch from a Web browser be sure you have first performed the following tasks 1 Configure it with a valid IP address subnet mask and default gateway for Layer 2 mode using an out of band serial connection or BOOTP protocol Provide a default gateway for Layer 2 operation see or a default route for multilayer operation see 4 5 6 5 Configuring the Default Route 2 Set a user name and password using an out of band serial connection see 4 4 4 User Login Configuration Access to the Web agent is controlled by the same user name and password as the on board configuration program Note If the path between your management station and this switch does
35. T Resetting the Systemer aE E sain 101 4 8 Logging Off the System esenseesssssssseeereesssrererressresssssssssrrreressssserrreees 101 Chapter 5 Web Interfaces e ineens a a E E a e EEE etees 102 5 1 Web Based Configuration and Monitoring eseeesssssseeeeerssssseeerereeesee 102 5 2 Navigating the Web Browser Interface ccssesececceeeeeeeeeeneentaneeeees 104 S2 KHOME Paten N e e ES A E 104 5 2 2 Configuration Options ssessssssssssssseerreessssesssererreeesssssssrerrereees 105 35 3 Panel Displa ynsan aE E Es E K E E a Eh 106 Del Port State Display erniet i EE EEO S 106 5 3 2 Configuring the Serial Port ssssesseesseeessssssersesssessssssrerrereesssss 107 54 M in MCI dps ts cna vas by sue ehense E EEEE anion be E TRE anes REN EERE 108 WGS3 2620 User s Manual 5 5 5 System Information Menu eescesesocoooososoooososocsoososoooososoooososoososososoosoooooooo 5 5 1 Displaying System Information 0 ceeeeeeeesecceeeeeeeeeeeeeetneeeeees 5 5 2 Displaying Switch Version Information cccceceeeeeeeetteeeeees 5 5 2 1 Main Board 5 6 Management Setup Menu eesesososoooosocoooososoooosocoooososoosososocsoososoooosocoooooo eescesososocoosocoooosocosoososoooososoooososoooosococsooooooooooo 5 6 1 Changing the Network Configuration Layer 2 Mode 5 6 2 Assigning SNMP Parameters s vsccsieke sadsoovcomlines snc cpeeenadeverdacnenevernes 5 6 2 1 Con
36. TFTP Download Downloads new version of firmware to update your system in band Configuration File Save or restores configuration data based on the specified file Device Control Menu System Mode Sets the switch to operate as a Layer 2 switch or as a multilayer routing switch Layer 2 Menu Configures port communication mode mirror ports port trunking and static unicast multicast address Bridge Menu Configures GMRP and GVRP for the bridge and STA for the global bridge or for specific ports VLAN Menu Configures VLAN settings for specific ports and defines the port membership for VLAN groups IGMP Snooping Configures IGMP multicast filtering Configuration IP Menu Configures the subnets for each VLAN group global configuration for unicast and multicast protocols BOOTP DHCP relay static ARP table entries static routes and the default route Security Restrict access through MAC address or IP address Network Monitor Menu Port Statistics Displays statistics on network traffic passing through the selected port including information from the Interfaces Group Ethernet link MIB and RMON MIB Layer 2 Address Contains the unicast address table Table Bridge Menu Displays Spanning Tree information for the overall bridge and for specified ports VLAN Menu Displays dynamic port registration information for VLANs as well as all VLAN forwarding information for static and dynamic assignment WGS3 2620 User s
37. VLAN traffic Displays all the multicast groups active on this switch including the multicast IP address and the corresponding VLANs Displays all the IP subnets used on this switch as well as the corresponding VLANs and ports Also contains the ARP table routing table and multicast menu 1 This menu is only displayed if the switch is set to Layer 2 mode 2 This menu is only displayed if the switch is set to multilayer mode WGS3 2620 User s Manual 72 4 6 1 Displaying Port Statistics Port Statistics display standard statistics on network traffic from the Interfaces Group and Ethernet like MIBs as well as a detailed breakdown of traffic based on the RMOM MIB Statistics Menu Port Statistics RMON Statistics Display port statistics Use lt TAB gt or arrow keys to move lt Enter gt to select Menu Description Port Statistics Displays statistics on network traffic passing through the selected port RMON Statistics Displays detailed statistical information for the selected port such as packet type and frame size counters WGS3 2620 User s Manual 73 4 6 1 1 Displaying Ethernet Port Statistics Port Statistics display key statistics from the Interfaces Group and Ethernet MIBs for each port Error statistics on the traffic passing through each port are displayed This information can be used to identify potential problems with the switch such as a faulty port or unusually heavy loading The values disp
38. authorized for management access Up to 5 community names may be entered SHMP Configuration SHMP Communities Community Hame Access Status i READ WRITE ENABLED 2 private READ ONLY EHABLED 3 4 5 lt Apply gt lt OK gt lt Cancel gt The community name of entry 1 READ WRITE Use lt TAB gt or arrow keys to move other keys to make changes Parameter Description Community A community entry authorized for management access Maximum Name string length 19 characters Access Management access is restricted to Read Only or Read Write Status Sets administrative status of entry to enabled or disabled Note The default community strings are displayed on the screen WGS3 2620 User s Manual 26 4 4 3 2 Configuring IP Trap Managers The following figure and table describe how to specify management stations that will receive authentication failure messages or other trap messages from the switch Up to 5 trap managers may be entered SHMP Configuration IP Trap Manager IP Address Community Hame Status 1 203 70 249 14 Public EHABLED 2 0 0 0 0 3 0 0 0 0 4 0 0 0 0 5 0 0 0 0 lt Apply gt lt OK gt lt Cancel gt The administrative status of entry 1 READ SELECT Use lt TAB gt or arrow keys to move lt Space gt to scroll options Parameter Description IP Address IP address of the trap manager Community A community specified for trap management access Name Status Sets administrative status of s
39. both logical and physical port numbers to support VLANs and Layer 3 switching simultaneously By using the abstraction of a logical port number to represent a collection of physical switch ports in the same VLAN Layer 3 switching can occur from one VLAN to another transparently without changing the routing protocol and IP routing software while Layer 2 switching is still used for intra VLAN traffic The switch uses standard routing tables that are constructed via static configuration or dynamic routing protocols such as RIP Each routing entry consists of a network address that is an IP address with a subnet mask and a virtual interface number Each virtual interface corresponds to a virtual LAN identified by the VLAN ID Also note that multiple routing entries can be provided for the same virtual interface by adding the required routing table entries for the same virtual interface A simple VLAN configuration that supports routing is shown below Network gt 1 0 0 0 2 0 0 0 3 0 0 0 PVID Table 1 0 0 1 2 0 0 5 3 0 0 5 3 0 0 10 VLANs Connected via IP Routing WGS3 2620 User s Manual 170 6 4 Multicast Filtering Multicasting sends data to a group of nodes instead of a single destination The simplest way to implement multicasting is to broadcast data to all nodes on the network However such an approach wastes a lot of bandwidth if the target group is small compared to the overall broadcast domain Since applications such as vid
40. ccssscsavccancesedcwesabdenvon cadesneestdanvenseees nescdenvers 4 2 4 1 Making a Connection to an RJ 45 Port eeceeeeeecccceeeeeeeeeeeetteeeeees 4 29 Powerme On the Swit 1ccenasccsidvecicutcesere avec nsedeie a a e a a 5 2 0 Vef yin POT Ui LAU Se leech cea lel plea el E pda E RSE 6 2 7 Verifying System Oper atom accu scare osvounass sacans Aevconue seen aneeee eoneiean 7 Chapter 3 Switch Mana semen trecestessincs ccapvaceacabondestadetendnetosapede ean nudabine natenagass 8 3 1 Configuration COONS ich lt svareearar di caceteaduanenalyeeaeea luteus aentue enaenaceineante 8 3 2 REGUITER C ONMECHIONMS ccs ae aeaa uses octet sts aes E EAA RARES 8 3 2 1Console Port Out of Band Connections ccccccccceseeeeceeeeeeeeees 8 3 2 2 Remote Management via the Console Port eceeeeeeeeeeeeeeeeeees 9 3 2 2 1 Configuring the Switch Site i e cosseicvescesacedenszevessesrengacesaevest 9 3 2 2 2 Configuring the Remote Site sps acveaaeiveisereaitiaeseviseeaetgieet 9 3 2 3 In Band Connections sssssssssesssssssereessserressssereessssereesssseressssereesso 9 Chapter 4 Console Interac o2isiuc2c1ts oacpattececss pn i a E a 10 Fa Db 24 Loo Calc Une nee en E A e ae Sere te ence te 10 Bh 2 IVE ATTAIN CU rara e AA A e siesta a TEATE ase eae 12 43 System Information Menu sssr ie iira E E O E E A 14 4 3 1 Displaying System Information ssseseeeeeeesssssssereereesssssssserrereeess 15 4 3 2 Displaying Switch Version Info
41. e A port may be manually configured as high priority In this case when any other port receives traffic from a high priority port that traffic is automatically placed in the high priority output queue WGS3 2620 User s Manual 173 6 6 BOOTP DHCP Relay Dynamic Host Configuration Protocol DHCP described in RFC 1541 is an extension of the Bootstrap Protocol BOOTP DHCP allows hosts on a TCP IP network to dynamically obtain basic configuration information When a DHCP client starts it broadcasts a DHCP Request packet looking for DHCP servers DHCP servers respond to this packet with a DHCP Response packet The client then chooses a server to obtain TCP IP configuration information such as its own IP address Since DHCP uses a broadcast mechanism a DHCP server and its client must physically reside on the same subnet However it is not practical to have one DHCP server on every subnet in fact in many cases DHCP BOOTP clients and their associated DHCP BOOTP server s do not reside on the same IP network or subnet In such cases a third party agent is required to transfer BOOTP messages between clients and servers BOOTP DHCP Relay described in RFC 1542 enables a host to use a BOOTP or DHCP server to obtain basic TCP IP configuration information even if the servers do not reside on the local subnet When an Switch BOOTP DHCP Relay Agent receives a DHCP Request packet destined for a BOOTP DHCP server it inserts its own IP address into t
42. ee ent C 8 8 E a E E O a O el eis E E O OA Coo E COO Oe 0O OC OC a E O OC Osa The ID for the VLAN currently displayed Range 1 4094 Port entries may be marked as N Normal Uses GVRP to determine port membership S Static Adds port as a static entry GVRP protocol is disabled R Registration Fixed Adds port as a static entry GVRP protocol messages are still forwarded through this port X Forbidden Disables GVRP for this VLAN on the specified port If a removed port is no longer assigned to any other group as an untagged port it will automatically be assigned to VLAN group 1 as untagged Note To add a new VLAN enter a new VLAN number in the VID field select the port members and press Add Save To modify a VLAN click on the edit icon for the required entry modify the port settings and press Add Save To delete a VLAN click on the edit icon for the required entry then press WGS3 2620 User s Manual 133 5 7 4 Configuring IGMP Snooping Multicasting is used to support real time applications such as video conferencing or streaming audio A multicast server does not have to establish a separate connection with each client It merely broadcasts its service to the network and any hosts which want to receive the multicast register with their local multicast switch router Although this approach reduces the network overhead required by a multicast server the broadcast traffic must be carefully filtere
43. interval in seconds at which the root device transmits a configuration message The minimum value is 1 The maximum value is the lower of 10 or Max Message Age 2 1 The maximum time in seconds the root device will wait before changing states that is listening to learning to forwarding This delay is required because every device must receive information about topology changes before it starts to forward frames In addition each port needs time to listen for conflicting information that would make it return to a blocking state otherwise temporary data loops might result The maximum value is 30 The minimum value is the higher of 4 or Max Message Age 2 1 43 Max 20 Message Age GMRP Disabled GVRP Disabled Priority 4 Threshold Address 300 Aging Time The maximum time in seconds a device can wait without receiving a configuration message before attempting to reconfigure All device ports except for designated ports should receive configuration messages at regular intervals Any port that ages out STA information provided in the last configuration message becomes the designated port for the attached LAN If it is a root port a new root port is selected from among the device ports attached to the network The minimum value is the higher of 6 or 2 x Hello Time 1 The maximum value is the lower of 40 or 2 x Forward Delay 1 GARP Multicast Registration Protocol GMRP allows net
44. is broadcast to get the destination MAC address from the destination node The IP packet can then be sent directly with the destination MAC address If the destination belongs to a different subnet on this switch the packet can be routed directly to the destination node However if the packet belongs to a subnet not included on this switch then the packet should be sent to a router with the MAC address of the router used as the destination MAC address and the destination IP address of the destination node The router will then forward the packet to the destination node via the correct path The router can also use the ARP protocol to find out the MAC address of the destination node of the next router when necessary Note In order to perform IP switching the switch should be recognized by other network nodes as an IP router either by setting it as the default gateway or by redirection from another router via the ICMP process When the switch receives an IP packet addressed to its own MAC address the packet follows the Layer 3 routing process The destination IP address is checked against the Layer 3 address table If the address is not already there the switch broadcasts an ARP packet to all the ports on the destination VLAN to find out the destination MAC address After the MAC address is discovered the packet is reformatted and sent out to the destination The reformat process includes decreasing the Time To Live TTL field of the IP
45. it wants to subscribe to the concerned multicast service this switch will use DVMRP to build up a source rooted multicast delivery tree that allows it to prevent looping and determine the shortest path to the source of this multicast traffic When this switch receives the multicast message it checks its unicast routing table to locate the port that provides the shortest path back to the source If that path passes through the same port the multicast message was received on then this switch records path information for the concerned multicast group in its routing table and forwards the multicast message on to adjacent routers except for the port through which the message arrived on This process eliminates any potential loops from the tree and ensures that the shortest path in terms of hop count is always used WGS3 2620 User s Manual 172 6 5 Class of Service CoS Support The switch provides two transmit queues on each port with a weighted fair queuing scheme This function can be used to provide independent priorities for various types of data such as real time video or voice and best effort data Priority assignment to a packet in this switch can be accomplished in any of the following ways e Priority can be explicitly assigned by end stations which have applications that require a higher priority than best effort This switch utilizes the IEEE 802 1p and 802 1Q tag structure to decide priority assignments for the received packets
46. not pass through any device that uses the Spanning Tree Algorithm then you can set the switch port attached to your management station to Fast Forwarding see 4 5 3 2 Configuring STA for Ports to improve the switchs response time to management commands issued through the Web interface After you enter the user name and password you will have access to the system configuration program illustrated by the following menu hierarchy WGS3 2620 User s Manual 102 System Information System Information Menu Switch Information Network Configuration Serial Port Configuration SNMP Configuration User Configuration TFTP Download Configuration File IP Configuration 1 IP Connectivity Test Ping HTTP Configuration Management Setup Menu SNMP Communities IP Trap Manager Layer 2 Multilayer Port Configuration Mirror Port Configuration Port Trunking Configuration Static Unicast Address Configuration Static Multicast Address Configuration Bridge Configuration Spanning Tree Port Configuration System Mode Layer 2 Menu Device Control Bridge Menu Menu VLAN Menu VLAN Port Configuration IP Menu 2 VLAN Table Configuration IGMP Snooping Configuration 1 Security Menu Subnet Configuration Protocol Configuration Static ARP Configuration Static Route Default Route MAC Filtering Configuration Security Mode IP Filtering Configuration 2 Port Statistics RMON Statistics Unicast Address Table Port
47. octets and contained either an FCS or alignment error The best estimate of the total number of collisions on this Ethernet segment The total number of frames including bad packets received and transmitted that were 64 octets in length excluding framing bits but including FCS octets The total number of frames including bad packets received and transmitted where the number of octets fall within the specified range excluding framing bits but including FCS octets 1519 1536 Byte Frames Note Statistics are refreshed every 10 seconds by default See 5 3 2 Configuring the Serial Port WGS3 2620 User s Manual 148 5 8 2 Layer 2 Address Tables This menu includes the unicast address table Menu Description Unicast Address Table Provides a full listing for unicast addresses 5 8 2 1 Displaying the Unicast Address Table The Unicast Address Table contains the MAC addresses associated with each port that is the source port associated with the address The information displayed in the Address Table is indicated in the following figure and table Unicast Address Table Address Port 0000B4 12349 4 13 0000B4 5DE9SF 13 Parameter Description Address The MAC address of a node seen on this switch Port The port whose address table includes this MAC address 5 8 3 Displaying Bridge Information The Bridge menu is used to display settings for the Spanning Tree Algorithm For a more detailed description of how to use this al
48. port in a completely unobtrusive manner When mirroring port traffic note that the target port must be included in the same VLAN as the source port See 5 7 3 2 VLAN Table Configuration You can use the Mirror Configuration screen to mirror one or more ports to the monitor port as shown below Enable Port Mirroring Tx Mirrored Port Tx Monitored Eji O 2 E Va O 5 T 6 ie Port B Lis T 10 Ta 12 jis 14 Pa 15 M 16 Li T 18 19 T 20 Lai 22 l 23 24 25 T 26 Rx Mirrored Port Rx Monitored D 1 O 2 O3 id 4 Lis 6 E Port BE O 9 T 10 11 iz 13 14 Tis T 16 17 T 18 T 19 M 20 21 Pi 22 C23 24 25 T 26 Cancel Apply Parameter Description Enable Port Mirror Enables or disables the mirror function TX Mirrored Port The port whose transmitted traffic will be mirrored TX Monitored Port The port that will duplicate the transmitted traffic appearing on the mirrored port RX Mirrored Port The port whose received traffic will be mirrored RX Monitored Port The port that will duplicate the received traffic appearing on the mirrored port Note You can mirror multiple ports to a single port to view traffic such as that crossing a port trunk However note that some packets may be dropped for moderate to heavy loading WGS3 2620 User s Manual 122 5 7 1 3 Configuring Port Trunks Ports can be combined into an aggregate link to increase the bandwidth of a network connection or ensure fault recovery You can configure trunks betw
49. see port group Use lt TAB gt or arrow keys to move other keys to make changes Parameter Description VLAN A VLAN already configured on this switch Port Port entries may be marked as S Adds port as a static entry P Adds port as a static entry and sets the ports PVID to this VLAN ID Note Use the lt Next Page gt and lt Prev Page gt buttons to scroll through the table To display a specific page set the page number in the Page field and then press lt Apply gt To modify a VLAN highlight the entry in the table and press Enter To add a new VLAN press lt Add gt WGS3 2620 User s Manual 56 4 5 6 1 3 Modifying an IP Interface To modify an IP interface first highlight the IP address in the Subnet Configuration menu and then press Enter The Modify Subnet screen is nearly the same as the Add Subnet screen However it also includes an Advanced option that allows you to configure the unicast and multicast routing protocols as described in the following sections Modify Subnet IP Address 203 70 249 118 Subnet Mask 255 255 255 0 Proxy ARP DISABLED RIP DISABLED Advanced DVMRP DISABLED Advanced lt Delete gt Use lt TAB gt or arrow keys to move other keys to make changes WGS3 2620 User s Manual 57 4 5 6 1 4 Configuring RIP The Routing Information Protocol is used to specify how routers exchange routing table information See RIP and RIP 2 Dynamic Routing Protocols
50. station attached directly to the network IP Multicast Filtering A process whereby this switch can pass multicast traffic along to participating hosts Layer 2 Data Link layer in the ISO 7 Layer Data Communications Protocol This is directly related to the hardware interface for network devices and passes traffic based on MAC addresses Layer 3 Network layer in the ISO 7 Layer Data Communications Protocol This layer handles the routing functions for data moving from one open system to another Link Aggregation See Port Trunk Management Information Base MIB An acronym for Management Information Base It is a set of database objects that contains information about a specific device Multicast Switching A process whereby the switch filters incoming multicast frames for services no attached host has registered for or forwards them to all ports contained within the designated multicast VLAN group WGS3 2620 User s Manual 184 Open Shortest Path First OSPF OSPF is a link state routing protocol that functions better over a larger network such as the Internet as opposed to distance vector routing protocols such as RIP It includes features such as unlimited hop count authentication of routing updates and Variable Length Subnet Masks VLSM Out of Band Management Management of the network from a station not attached to the network Port Mirroring A method whereby data on a target port is mirrored to a monitor port fo
51. this IP interface Select Use this option to create or modify a VLAN under the Port Group Configuration menu IP Address The IP address associated with the specified VLAN interface In general it is the router IP address for the specified VLAN members Subnet Mask A template that identifies the address bits in the host address used for routing to specific subnets Each bit that corresponds to a 1 is part of the network subnet number and each bit that corresponds to 0 is part of the host number Proxy ARP Enables or disables Proxy ARP for the interface This feature allows the switch forward an ARP request from a node in the attached subnetwork that does not have routing or a default gateway configured to a remote subnetwork See 6 2 5 Proxy ARP Note that Proxy ARP must be enabled globally for the switch before this setting can take effect See 4 5 6 2 Protocol Configuration RIP Routing Information Protocol for unicast routing DVMRP Distance Vector Multicast Routing Protocol WGS3 2620 User s Manual 55 4 5 6 1 2 Configuring Port Groups You can create a new VLAN group or modify the members of an existing group by pressing Select on the Add Subnet screen Port Group Configuration 12345678901234567890123456 P PPPPPPPPPPPPPPPPPPPPPPPP S Static P P PVID Page lt Apply gt Total 1 Pages lt OK gt lt Prev Page gt lt Hext Page gt lt Add gt Enter page number than press Apply to
52. to avoid any confusion or inconvenience in the future when you upgrade attached devices to Gigabit Ethernet Restrictions on Cascade Length The IEEE 802 3 standard recommends restricting the number of hubs i e repeaters cascaded via twisted pair cable to 4 while IEEE 802 3u provides even stricter recommendations for Fast Ethernet Therefore when cascading devices other than this switch please refer to the accompanying documentation for cascade restrictions However note that because switches break up the path for connected devices into separate collision domains you should not include the switch or connected cabling in your calculations for cascade length involving other devices 2 5 Powering On the Switch 1 Plug the power cord into the power socket on the rear of the switch and the other end into a power outlet 2 Check the LED marked PWR on the front panel to see if it is on The unit will automatically select the setting that matches the connected input voltage Therefore no additional adjustments are necessary when connecting it to any input voltage within the range marked on the rear panel WGS3 2620 User s Manual 5 3 The switch performs a self diagnostic test upon power on Note that this test takes about one minute to complete NOTES The unit supports a hot remove feature which permits you to connect or disconnect twisted pair or fiber cables without powering off the switch and without disrupting the operati
53. to the upstream neighbor See 5 8 6 1 Displaying Subnet Information Neighbor The IP address of the network device immediately upstream for this Address multicast delivery tree UpTime The time since this device last became a DVMRP neighbor to this switch ExpireTime The time remaining before this entry will be aged out Version The neighboring routers DVMRP version number Rev Route The total number of routes received in valid DVMRP packets from this neighbor This can be used to diagnose problems such as unicast route injection as well as giving an indication of the level of DVMRP route exchange activity 5 9 Resetting the System Use the Restart command under the Main Menu to reset the management agent The reset screen is shown below Restart Option Reload Factory Default No gt Apply Cancel Parameter Description Reload Factory Reloads the factory defaults Defaults Apply Restarts the switch Note When restarting the system it will always run the Power On Self Test It will also retain all system information unless you elect to reload the factory defaults WGS3 2620 User s Manual 157 Chapter 6 Advanced Topics This Layer 3 switch supports both Layer 2 which is based on physical device addresses and Layer 3 switching which is based on IP network addresses These functions along with other advanced features are described in this chapter 6 1 Layer 2 Switching When a frame enters a port its destinati
54. 0 128 6 7 100BASE TX Disabled 0 32768 00304F 18E640 128 7 8 100BASE TX Disabled 0 32762 00304F18E640 128 8 9 100BASE TX Disabled 0 32768 00304F 18E640 128 9 10 100BASE TX Disabled 0 32762 00304F18E640 128 10 Parameter Description Type Shows port type as 100BASE TX 10BASE T 100BASE TX 1000BASE T 1000BASE T Status Displays current state of this port within the Spanning Tree Disabled No link has been established on this port Otherwise the port has been disabled by the user or has failed diagnostics Blocking Port receives STA configuration messages but does not forward packets Listening Port will leave blocking state due to a topology change start transmitting configuration messages but does not yet forward packets Learning Port has transmitted configuration messages for an interval set by the Forward Delay parameter without receiving contradictory information Port address table is cleared and the port begins learning addresses Forwarding The port forwards packets and continues learning addresses The rules defining port status are e A port on a network segment with no other STA compliant bridging device is always forwarding e If two ports of a switch are connected to the same segment and there is no other STA device attached to this segment the port with the smaller ID forwards packets and the other is blocked All ports are blocked when the switch is booted then some of them change state to listening to learni
55. 1 The communication parameters for this port can be accessed from the Serial Port Configuration screen shown below and described in the following table Serial Port Configuration Management Mode OCR ROO Baud rate 19200 Data bits 8 Stop bits ae Parity Time Out in minutes O Auto Refresh in seconds lt Cancel gt The connection mode of the serial port READ SELECT Use lt TAB gt or arrow keys to move lt Space gt to scroll options WGS3 2620 User s Manual 23 Parameter Management Mode Default Console Mode Description Indicates that the port settings are for direct Baud Rate Data Bits Stop Bits Parity Time Out Auto Refresh WGS3 2620 User s Manual 19200 8 bits 1 bit None 0 10 second console connection The rate at which data is sent between devices Options 9600 19200 and 38400 baud Sets the data bits of the RS 232 port Options 7 8 Sets the stop bits of the RS 232 port Options 1 2 Sets the parity of the RS 232 port Options none odd even If no input is received from the attached device after this interval the current session is automatically closed Range 0 100 minutes where 0 indicates disabled Sets the interval before a console session will auto refresh the console information such as Spanning Tree Information Port Configuration Port Statistics and RMON Statistics Range 0 or 5 255 seconds where 0 indicates disabled 24
56. 1 1 Configuring Port Parameters Use the Port Configuration menu to display and Edit icon to set communication parameters for any port on the switch including administrative status auto negotiation default communication speed and duplex mode as well as flow control in use Port Configuration Port Link Status Admin Status Auto Negotiate Default Type Current Control Flow Control Jack Type Edit 10M Helf 1 z Enabled Enabled Debs 10M Hal Duplex Off RS 2 2 X Enabled Enabled pana 10M Helf Duplex Off RIS 2 3 x Enabled Enabled T 10M Hslf Duplex Off RIS 2 10M Half 4 Kx Enabled Enabled Dap 10M Hal Duplex Off RS 2 5 x Enabled Enabled pa 10M Helf Duplex Off RHS 2 10M Helf 6 xXx Enabled Enabled Dap 10M Hal Duplex Off RHS 2 7 x Enabled Enabled palo 10M Half Duplex Off RHS 29 8 x Enabled Enabled ees 10M Hslf Duplex Off RIS 2 9 x Enabled Enabled ae 10M Helf Duplex Off RHS 2 Click the following table will be show to allow setting each port s parameter WGS3 2620 User s Manual 120 Edit Port Configuration Port 1 Link Status Off Admin Status Enabled Auto Negotiate Enabled Default Type 10M HalfDuplex Current Type 10M Half Duplex Flow Control Off Jack Type RJ 45 Parameter Default Description Link Status Indicates if the port has a valid connection to an external device Admin Status Enabled Allows you to disable a port due to abnormal behavior e g excessive collisions and then re enable it after the pro
57. 2 23 24 25 26 2 Static 1 5 Static 2 5 8 5 IP Multicast Registration Table This table displays all the multicast groups active on the switch including the multicast IP address and the corresponding VLANs IP Multicast Registration Table VLAN Multicast IP Multicast Group Ports Learn By 1 234 7 6 99 26 IGMP Parameter Description VLAN A VLAN with host members that have asked to receive the indicated multicast service Multicast IP A source IP address that represents a specific multicast service Multicast The ports that belong to the indicated VLAN group Group Ports Learned By Shows if this entry was learned dynamically or via IGMP Snooping An entry is learned dynamically if a multicast packet was seen crossing the port or via IGMP Snooping if an IGMP registration packet was seen crossing the port WGS3 2620 User s Manual 152 5 8 6 IP Menu This menu contains IP subnets information the ARP cache routing table as well as multicast groups and multicast routing information Menu Description Subnet Displays all the IP subnets configured on this switch as well as the Information corresponding VLANs and ports ARP Table Shows the IP to MAC addresses discovered by ARP Routing Shows the routes through which all recognized Ethernet networks and Table the corresponding VLAN can be reached Multicast Displays all the multicast groups active on this switch including the Table multicast IP address and the corresponding VLANs Als
58. 2 Address Tables This menu includes the unicast address table Layer 2 Address Table Unicast Address Table Return to previous panel Use lt TAB gt or arrow keys to move lt Enter gt to select Menu Description Unicast Address Table Provides a full listing for unicast addresses WGS3 2620 User s Manual 78 4 6 2 1 Displaying the Unicast Address Table The Unicast Address Table contains the MAC addresses associated with each port that is the source port associated with the address The information displayed in the Address Table is indicated in the following figure and table Layer 2 Menu Unicast Address Table Address Port Address Port 00 00 B4 30 27 FC 1 00 00 B4 5D E9 8F 1 00 00 B4 91 58 CF 1 00 00 B4 A7 F2 5D 1 00 00 B4 A7 F3 71 1 00 00 B4 A7 FA 5p 1 00 00 B4 A8 0A4 D5 1 00 04 AC 96 C8 1D 1 00 30 4F 08 Fa 53 1 00 30 4F 08 FB E0 1 00 30 4F O0B 3C B8 1 00 30 4F OB 3D D0 1 00 30 4F O0B 3D D1 1 00 30 4F O0B 3E 6A 1 00 30 4F OB 3F 59 1 00 48 54 02 86 2E 1 00 48 54 12 67 39 1 00 50 54 86 5C 60 1 00 60 67 17 00 2B 1 00 60 B0 F3 DF 1F 1 00 A0 C5 12 13 AE 1 00 A0 CC 66 26 BA 1 00 A0 CC D5 DF 9C 1 00 CO 02 11 25 80 1 Page 1 lt Apply gt Total 2 Pages lt OK gt lt Next Page gt lt Prev Page gt Return to previous panel Use lt TAB gt or arrow keys to move lt Enter gt to select Parameter Description Address The MAC address of a node seen on this switch Port The port whose address table includes this
59. 249 00 c0 02 19 82 15 203 249 00 06 29 a2 67 41 203 249 00 04 ac 96 c8 id 203 249 00 00 b4 c5 43 bc 203 249 00 00 b4 92 26 a1 203 249 00 30 4f 0b 3c b9 1 1 1 1 1 1 1 1 1 1 1 1 pb peb pb peb pb peb pb pb pab pb pb jat lt First Page gt lt Next Page gt Return to previous panel Use lt TAB gt or arrow keys to move lt Enter gt to select Parameter Description IP Address IP addresses for which ARP has resolved the physical address through a broadcast message MAC Address MAC address that maps to the corresponding IP address VLAN The VLAN group to which this host has been assigned Port The port to which this host device is attached Note To scroll through the address table use the lt First Page gt and lt Next Page gt buttons WGS3 2620 User s Manual 91 4 6 6 3 Routing Table The Routing Table lists the routes through which all recognized Ethernet networks and corresponding VLAN can be reached This table includes all routes learned through routing protocols or manual configuration Routing Table Destination Network Destination Mask VLAN Hext Hop Type Protocol 0 0 0 0 0 0 0 0 1 203 70 249 254 Indirect Mgmt 203 70 249 0 255 255 255 0 1 203 70 249 118 Direct Local Page 1 lt Apply gt Total 1 Pages lt OK gt lt Prev Page gt lt Hext Page gt lt Flush RIP gt Return to previous panel Use lt TAB gt or arrow keys to move lt Enter gt to select m WGS3 2620 User s Manu
60. 4 4 3 Assigning SNMP Parameters Use the SNMP Configuration screen to display and modify parameters for the Simple Network Management Protocol SNMP The switch includes an on board SNMP agent which monitors the status of its hardware as well as the traffic passing through its ports A computer attached to the network called a Network Management Station NMS can be used to access this information Access rights to the on board agent are controlled by community strings To communicate with the switch the NMS must first submit a valid community string for authentication The options for configuring community strings and related trap functions are described in the following sections SHMP Configuration Send Authentication Fail Traps SHMP Communities IP Trap Manager Send a trap or not when SHMP authentication fails READ SELECT Use lt TAB gt or arrow keys to move lt Space gt to scroll options Parameter Description Send Issue a trap message to specified IP trap managers whenever Authentication authentication of an SNMP request fails The default is enabled Fail Traps SNMP Assigns SNMP access based on specified strings Communities IP Trap Specifies management stations that will receive authentication failure Managers messages or other trap messages from the switch WGS3 2620 User s Manual 25 4 4 3 1 Configuring Community Names The following figure and table describe how to configure the community strings
61. 4 Displaying VLAN Information These menus display information on the ports that have been automatically learned via GVRP and all those ports that have been configured by dynamic or static means to forward VLAN traffic VLAH Information AN Dynamic Registration Information VLAN Forwarding Information Display VLAN dynamic registration information Use lt TAB gt or arrow keys to move lt Enter gt to select Menu Description VLAN Shows the ports that have been automatically learned via GVRP Dynamic Registration Information VLAN Shows all those ports that have been configured by either Forwarding dynamic or static means to forward VLAN traffic Information WGS3 2620 User s Manual 85 4 6 4 1 VLAN Dynamic Registration Information This table shows the ports that have been automatically learned via GVRP VLAN Dynamic Registration Information 12345678901234567890123456 D D D 1 lt Apply gt Total 1 Pages lt Prev Page gt lt Hext Page gt Return to previous panel Use lt TAB gt or arrow keys to move lt Enter gt to select Note To scroll through the dynamic registration table use the lt Next Page gt and lt Prev Page gt buttons To display a specific page set the page number in the Page field and then press lt Apply gt WGS3 2620 User s Manual 86 4 6 4 2 VLAN Forwarding Information Shows all those ports that have been configured by either dynamic or static means to forward VLAN traffic
62. 620 User s Manual 20 4 4 1 2 IP Connectivity Test Ping Use the IP Connectivity Test to see if another site on the Internet can be reached The screen shown below is described in the following table Network Configuration IP Connectivity Test Ping IP Address 203 70 249 14 Test Times 5 Success 5 Failure 0 Start lt CANCEL gt Start the IP connectivity test Use lt TAB gt or arrow keys to move lt Enter gt to select Parameter Description IP Address IP address of the site you want to ping Test Times The number of ICMP echo requests to send to the specified site Range 1 1000 Success Failure The number of times the specified site has responded or not to pinging Note The switch waits up to 10 seconds for a response to each ping WGS3 2620 User s Manual 21 4 4 1 3 HTTP Configuration Use the HTTP Configuration screen to enable disable the on board Web agent Network Configuration HTTP Configuration HTTP Server RAD RY lt Apply gt lt Cancel gt Administrative status of the HTTP server READ SELECT Use lt TAB gt or arrow keys to move lt Space gt to scroll options Note Port 80 is used for HTTP service WGS3 2620 User s Manual 22 4 4 2 Configuring the Serial Port You can access the on board configuration program by attaching a VT100 compatible device to the switch s serial port For more information on connecting to this port see Required Connections on Chapter
63. C Address Filters 20 0 eeeeeeeesseeeeeeeeees 70 4 5 7 2 IP Filtering Conti Suraions amsiuaseiimn om hemos 71 4 6 Monitoring the Switch seeeseeesssssssseeereesssssssssrrereessssssssereereessssesssereeeee 72 4 6 1 Displaying Port Statistics eeeeeeeesssseeeeeereessssessserrrrressssssssserrerees 173 4 6 1 1 Displaying Ethernet Port Statistics eeceeeeesseeeeeeeeeeeees 74 4 6 1 2 Displaying RMON Statistics 00 0 0 cccccccceeeeeeeeeeeeeeeeeeeeeeeeees 76 4 6 2 Layer 2 Address PaCS i 2iccincciicenserdcleunensteesavads tug wesslitentneiedenmeesedeno 78 4 6 2 1 Displaying the Unicast Address Table ceseseeeeeeeeees 79 4 6 3 Displaying Bridge Information cccccceeceeesseteeeeceeeeeeeeseeeeees 80 4 6 3 1 Viewing the Current Spanning Tree Bridge Information 81 4 6 3 2 Displaying the Current Spanning Tree Port information 83 4 6 4 Displaying VLAN Information eeeeeeeseteeeeeeeeeeeeeeeeeeaes 85 4 6 4 1 VLAN Dynamic Registration Information eeee 86 4 6 4 2 VLAN Forwarding Information eeeeeeesseeeeeeeeeeeees 87 4 6 5 IP Multicast Registration Table ccceeeeeeesteeeeeeeeeeeeeeeeeeeaes 88 4 6 6 IPPA Gress MA DIGS iraco o oi E E aE 89 4 6 6 1 Displaying Subnet Information 2 0 00 eeeeeeeteeeeeeeeeees 90 4 6 0 2 A RPV AD le iinan a e A Garena E 91 4 6 0 3 Routing Table aeoe E eea Ea cacao ites Ea 92 46 60 44 Multicast Table reinicie ieaiaia 95 4
64. GF lates ocey 6 W lg oud 56 oiaire te i PASS Test Accessing Agent s Config EEPROM PASS FlashROM CheckSum Test 0 eee eee PASS If you want to download image file Please press lt D gt to download II Download Runtime image press lt r gt II Download Diagnostic image press lt d gt I Clear the system parameter block lt c gt r Please input the Baud Rate as following Press 1 Baud Rate 9600 Press 2 Baud Rate 19200 Press 3 Baud Rate 38400 Press 4 Baud Rate 57600 Press 5 Baud Rate 115200 Select a number and then press lt ENTER gt 5 Please change local console BaudRate to exact rate and press lt ENTER gt 2 When the system initialization screen appears as shown above press D to download system firmware and then indicate the code type lt r gt Runtime image or lt d gt Diagnostic image 3 Change your baud rate to the selected value and press Enter to enable download From the terminal emulation program select the file you want to download set the protocol to XModem and then initialize downloading Notes 1 If you use Windows HyperTerminal disconnectl 3 set the baud rate and reconnect 2 2 The download file should be a binary file or an image file otherwise the agent will not accept it 4 After the file has been downloaded the console screen will display information similar to that shown below Press Enter to download to permanent memory c
65. In Errors The number of inbound packets that contained errors preventing them from being deliverable to a higher layer protocol Alignment The number of alignment errors mis synchronized data packets Errors Out Octets The total number of octets transmitted out of the interface including framing characters Out Unicast The total number of packets that higher level protocols requested be Pkts transmitted to a subnetwork unicast address including those that were discarded or not sent Out The total number of packets that higher level protocols requested be Non Unicast transmitted to a non unicast that is a subnetwork broadcast or WGS3 2620 User s Manual 74 Pkts subnetwork multicast address including those that were discarded or not sent Out Discards The number of outbound packets which were chosen to be discarded even though no errors had been detected to prevent their being transmitted One possible reason for discarding such a packet could be to free up buffer space Out Errors The number of outbound packets that could not be transmitted because of errors CRC Errors Number of Ethernet Cyclic Redundancy Check errors detected by this device Ethernet Like Single The number of successfully transmitted frames for which transmission Collisions is inhibited by exactly one collision Deferred A count of frames for which the first transmission attempt on a Transmissions particular interface is delayed because the medi
66. Includes IP Configuration Ping facility and HTTP Web Configuration agent setup Serial Port Sets communication parameters for the serial port Configuration including baud rate console time out and screen data refresh interval SNMP Activates authentication failure traps and configures Configuration community access strings and trap managers User Configuration Sets the user names and passwords for system access TFTP Download Downloads new version of firmware to update your system in band Configuration File Download the VLAN and routing configuration to a file or upload the configuration file to the switch WGS3 2620 User s Manual 12 Device Control Menu System Mode Sets the switch to operate as a Layer 2 switch or as a multilayer routing switch Layer 2 Menu Configures port communication mode mirror ports port trunking and static unicast multicast address Bridge Menu Configures GMRP and GVRP for the bridge and STA for the global bridge or for specific ports VLAN Menu Configures VLAN settings for specific ports and defines the port membership for VLAN groups IGMP Snooping Configures IGMP multicast filtering Configuration IP Menu Configures the subnets for each VLAN group global configuration for unicast and multicast protocols BOOPP DHCP relay static ARP table entries static routes and the default route i Security Restrict access through MAC address or IP address Networ
67. MAC address Note Use the lt Next Page gt and lt Prev Page gt buttons to scroll through the address table To display a specific page set the page number in the Page field and then press lt Apply gt WGS3 2620 User s Manual 79 4 6 3 Displaying Bridge Information The Bridge menu is used to display settings for the Spanning Tree Algorithm For a more detailed description of how to use this algorithm refer to 6 1 3 Spanning Tree Algorithm Bridge Menu Spanning Tree Bridge Information Spanning Tree Port Information Display the spanning tree information Use lt TAB gt or arrow keys to move lt Enter gt to select Menu Description Spanning Tree Displays a full list of STA values used for the bridge Bridge Information Spanning Tree Port Displays a list of STA values used for each port including status Information designated cost designated bridge and designated port WGS3 2620 User s Manual 80 4 6 3 1 Viewing the Current Spanning Tree Bridge Information The STA Bridge Information screen displays a summary of STA information for the overall bridge To make any changes to these parameters use the Bridge STA Configuration menu The parameters shown in the following figure and table describe the current bridge STA settings Bridge Menu Spanning Tree Bridge Information Priority Hello Time in seconds Max Age in seconds Forward Delay in seconds Hold Time in seconds Designated Root
68. MP Version 1 members on the IP subnet attached to this interface The default is 400 seconds If the switch receives an IGMP Version 1 Membership Report it sets a timer to note that there are Version 1 hosts present which are members of the group for which it heard the report If there are Version 1 hosts present for a particular group the switch will ignore any Leave Group messages that it receives for that group WGS3 2620 User s Manual 155 Displaying the Multicast Forwarding Cache The switch maintains a cache of multicast routing entries used to calculate the delivery tree in multicast routing protocols The Multicast Forwarding Cache includes the subnetwork that contains the multicast source and the nearest upstream neighbor for each known multicast group address Multicast Forwarding Cache Group Address Source Address Mask Sane Protocol Up Neighbor Time 234 7 6 99 10 1 0 0 0 0 0 16 10 1 15 19 DVMRP 15 Parameter Description Group Address An IP multicast group address with subscribers directly attached or downstream from this switch Source Address The IP subnetwork at the root of the multicast delivery tree This subnetwork contains a known multicast source Mask Subnet mask that is used for the source address This mask identifies the host address bits used for routing to specific subnets Upstream Neighbor The IP address of the network device immediately upstream for this group Protocol The multicast routing protocol
69. P cache ARP Configuration ARP Timeout Minutes lt Cancel gt ARP timeout value minutes Use lt TAB gt or arrow keys to move other keys to make changes Parameter Default Description ARP 20 The time that dynamically learned entries are retained in the Timeout minutes ARP cache Range 0 999 minutes where 0 disables aging WGS3 2620 User s Manual 62 4 5 6 2 2 Setting the RIP Advertisement Policy You can use the following configuration screen to set the timing interval and policies RIP uses to advertise route information RIP Configuration RIP Update Time Seconds Default Route Advertisement DISABLED Static Route Advertisement DISABLED Ignore Host Route DISABLED lt Cancel gt RIP timeout value seconds Use lt TAB gt or arrow keys to move other keys to make changes Parameter Default Description RIP Update 30 seconds The interval at which RIP advertises known route Time information Range 0 999 seconds where 0 disables route advertisements Default Route Disabled Enables or disables advertising this switch as a default Advertisement router Static Route Disabled Enables or disables advertisement of static routes Advertisement Ignore Host Disabled If enabled the switch will not import a default route from Route other routers WGS3 2620 User s Manual 63 4 5 6 2 3 Configuring BOOTP DHCP Relay If a DHCP BOOTP server is not located in the same subnet with a host you can con
70. R 6 Bs RTS gt 4 7 lt CTS 5 9 lt RI 22 WGS3 2620 User s Manual 182 GLOSSARY Bandwidth Utilization The percentage of packets received over time as compared to overall bandwidth BOOTP Boot protocol used to load the operating system for devices connected to the network Distance Vector Multicast Routing Protocol DVMRP A distance vector style routing protocol used for routing multicast datagrams through the Internet DVMRP combines many of the features of RIP with Reverse Path Broadcasting RPB GARP VLAN Registration Protocol GVRP Defines a way for switches to exchange VLAN information in order to register necessary VLAN members on ports along the Spanning Tree so that VLANs defined in each switch can work automatically over a Spanning Tree network Generic Attribute Registration Protocol GARP GARP is a protocol that can be used by endstations and switches to register and propagate multicast group membership information in a switched environment such that multicast data frames are propagated only to those parts of a switched LAN containing registered endstations Formerly called Group Address Registration Protocol Group Attribute Registration Protocol See Generic Attribute Registration Protocol Generic Multicast Registration Protocol GMRP GMRP allows network devices to register end stations with multicast groups
71. RIP 2 Dynamic Routing Protocols The RIP protocol is the most widely used routing protocol The RIP protocol uses a distance vector based approach to routing Routes are determined on the basis of minimizing the distance vector or hop count which serves as a rough estimate of transmission cost Each router broadcasts its advertisement every 30 seconds together with any updates to its routing table This allows all routers on the network to learn consistent tables of next hop links which lead to relevant subnets Just as Layer 2 switches use the Spanning Tree Algorithm to prevent loops routers also use methods for preventing loops that would cause endless retransmission of data traffic RIP utilizes the following three methods to prevent loops from occurring e Split horizon never propagate routes back to an interface port from which they have been acquired e Poison reverse propagate routes back to an interface port from which they have been acquired but set the distance vector metrics to infinity This provides faster convergence e Triggered updates whenever a route gets changed broadcast an update message after waiting for a short random delay but without waiting for the periodic cycle RIP 2 is a compatible upgrade to RIP RIP 2 adds useful capabilities for plain text authentication multiple independent RIP domains variable length subnet_masks and multicast transmissions for route advertising WGS3 2620 User s Manual 165
72. Route MAC Filtering Configuration Security Mode IP Filtering Configuration 2 Port Statistics RMON Statistics Spanning Tree Bridge Information Spanning Tree Port Information VLAN Dynamic Registration Information VLAN Forwarding Information Subnet Information ARP Table Routing Table Multicast Table 4 2 Main Menu With the system configuration program you can define system parameters manage and control the switch and all its ports or monitor network conditions The figure below of the Main Menu and the following table briefly describe the selections available from this program Note Options for the currently selected item are displayed in the highlighted area at the bottom of the interface screen WGS3 2620 Layer 2 Mode Main Menu System Information Menu Management Setup Menu Device Control Menu Network Monitor Menu System Restart Menu Exit Display or change system information Use lt TAB gt or arrow keys to move lt Enter gt to select Menu Description Operation Mode The text string in the top right corner of the screen shows if the switch is operating as a Layer 2 switch or as a multilayer routing switch System Information Menu System Information Provides basic system description including contact information Switch Information Shows hardware firmware version numbers power status and expansion modules used in the switch Management Setup Menu Network
73. See 5 7 3 1 VLAN Port Configuration IGMP and IGMP Snooping also provide multicast filtering For multilayer mode the full IGMP protocol set is automatically enabled disabled along with DVMRP See 6 4 2 IGMP Protocol Configuring DVMRP and 5 7 4 Configuring IGMP Snooping GVRP Disabled GARP VLAN Registration Protocol GVRP defines a way for Priority 4 Threshold Address 300 Aging Time switches to exchange VLAN information in order to register VLAN members on ports across the network This function should be enabled to permit automatic VLAN registration and to support VLANs which extend beyond the local switch If GVRP is globally enabled for the switch then you can individually enable or disable GVRP for a specific port See 5 7 3 1 VLAN Port Configuration This switch supports Quality of Service QoS by using two priority queues with Weighted Fair Queuing for each port Up to 8 separate traffic classes are defined in IEEE 802 1p Therefore any packets with a priority equal to or higher than this threshold are placed in the high priority queue Timeout period in seconds for aging out dynamically learned forwarding information Range 10 1000000 seconds You can use 5 7 3 1 VLAN Port Configuration to configure the default priority for each port WGS3 2620 User s Manual 128 5 7 2 2 Configuring STA for Ports The following figure and table describe port STA configuration
74. Statistics Network Monitor Layer 2 Address Table Spanning Tree Bridge Information Menu Bridge Menu Spanning Tree Port Information VLAN Menu TP Menu 2 VLAN Dynamic Registration Information IP Multicast Registration Table 1 VLAN Forwarding Information Subnet Information ARP Table Routing Table System Restart Menu Multicast Table Exit 1 Displayed for layer 2 mode only 2 Displayed for multilayer mode WGS3 2620 User s Manual 103 5 2 Navigating the Web Browser Interface To access the Web browser interface you must first enter a user name and password The administrator has Read Write access to all configuration parameters and statistics The default user name for the administrator is admin with no password 5 2 1 Home Page When your Web browser connects with the switch s Web agent the home page is displayed as shown below The home page displays the Main Menu on the left side of the screen and System Information on the right side The Main Menu links are used to navigate to other menus and display configuration parameters and statistical data Link Up er 3 Fast Gigabit Notworbing amp Commenccstice EEE EPIL ELE TT a ah od Aa a a aad Q PLANET rreg j P J a2 Link Down kad amp Main Menu n Info 2442G Layer 3 Fast Gigabit Ethernet Switch System Object ID _ 1 3 6 1 4 1 10456 1 462 System Up Time Odlh min 30s System Name 7 System Contact A System Location OoOo O Coat
75. The two RJ 45 copper ports support 1000Mbps auto MDI detection that can directly connect to any Gigabit Ethernet Servers Switches L3 backbone with a straight Category 5 5e 8 wire UTP cable The 24 port 10 100Mbps are for L2 L3 network connection The wire speed switch engine provides up to 8 53Gbps switch fabric for L2 and L3 IP routing capability Up to 256 IP subnet L2 tagged VLAN are also available to segment the IP or MAC based networks IEEE802 1D Spanning Tree bridging Port mirroring and IEEE802 3ad port trunk also support for optimal LAN connection and diagnose IGMP snooping filtering dual priority helps to build a multimedia networks like video conference etc Designed to offer the guaranteed IP Layer 3 routing the WGS3 2620 empower the performance of pure IP based network easier then ever Features 2 port 1000Mbps 24 port 10 100Mbps Ethernet Switch Complies with IEEE802 3 10Base T IEEE802 3u 100Base TX and IEEE802 3ab 1000Base T standards IEEE802 3x full duplex flow control compliant back pressure half duplex flow control IEEE802 1p dual priority IEEE802 1Q VLAN Tagging IEEE802 1D Bridging compliant 32K MAC address table auto ageing 64K IP address at most IPv4 Layer 3 routing supporting RIP 1 2 DVMRP Distance Vector Multicast Routing Protocol gt gt 8 53G non blocking Store and Forward switching architecture e RS 232 console interface for console program managements Web Telnet S
76. Version Information Use the Switch Information screen to display hardware firmware version numbers for the main board as well as the fan power status Parameter Hardware Version Firmware Version Serial Number Port Number Power Status Fan Power Status G1 and G2 Information WGS3 2620 User s Manual Switch Information Hardware Version ROL Firmrare Version V1 01 Serial Number OO 30 4F 18 E6 40 Humber of Ports 26 Power Status Active Fan Power Status Active G1 Information 1000Base T G2 Information 1000Base T Return to previous panel Use lt Enter gt to select Description Hardware version of the main board System firmware version in ROM The serial number of the main board Number of ports on this switch Shows if power is active Shows if power to the fan is active or inactive Shows the G1 and G2 connection type Itis always 1000Base T on this version 4 4 Management Setup Menu After initially logging onto the system adjust the communication parameters for your console to ensure a reliable connection Serial Port Configuration Specify the IP addresses for the switch Network Configuration IP Configuration and then set the Administrator and User passwords I User Configuration Remember to record them in a safe place Also set the community string which controls access to the on board SNMP agent via in band management software SNMP Configuration The items provided by the Management Se
77. WGS3 2620 24 2G Layer 3 Fast Gigabit Ethernet Switch User s Manual Information furnished is believed to be accurate and reliable However no responsibility is assumed by for its use nor for any infringements of patents or other rights of third parties which may result from its use No license is granted by implication or otherwise under any patent or patent rights Right reserved to change specifications at any time without notice Copyright 2001 by PLANET Technology Corp All rights reserved FCC Compliance Statement This equipment generates and uses radio frequency energy and if not installed and used properly that is in strict accordance with the instructions provided with the equipment may cause interference to radio and TV communication The equipment has been tested and found to comply with the limits for a Class A computing device in accordance with the specifications in Subpart B of Part 15 of FCC rules which are designed to provide reasonable protection against such interference in a residential installation However there is no guarantee that interference will not occur in a particular installation If you suspect this equipment is causing interference turn your Ethernet Switch on and off while your radio or TV is showing interference if the interference disappears when you turn your Ethernet Switch off and reappears when you turn it back on there is interference being caused by the Ethernet Switch You can try to cor
78. access to a broad range of statistics including a total count of different frame types and sizes passing through each port Values displayed have been accumulated since the last system reboot RMON Statistics Drop Events Jabbers Bytes 2042730 Collisions Frames 18036 64 Byte Frames Broadcast Frames 9853 65 127 Byte Frames Multicast Frames 1798 128 255 Byte Frames CRCfAlignments Errors 4 256 511 Byte Frames Undersize Frames i 512 1023 Byte Frames O H Oversize Frames 0 1024 1518 Byte Frames 0 Fragments 1519 1536 Byte Frames Port Humber 1 lt Apply gt lt Reset gt lt Reset All gt lt Refresh gt lt Next Port gt lt Prev Port gt Return to previous panel Use lt TAB gt or arrow keys to move lt Enter gt to select WGS3 2620 User s Manual 76 Parameter Description Drop Events Bytes Frames Broadcast Frames Multicast Frames CRC Alignment Errors Undersize Frames Fragments Jabbers Collisions 64 Byte Frames 65 127 Byte Frames 128 255 Byte Frames 256 511 Byte Frames 512 1023 Byte Frames 1024 1518 Byte Frames 1519 1536 Byte Frames The total number of events in which packets were dropped due to lack of resources Total number of bytes of data received on the network This statistic can be used as a reasonable indication of Ethernet utilization The total number of frames bad broadcast and multicast received The total number of good frames received that were d
79. ace for any VLAN configured on this switch that needs to communicate with a device outside of its own group that is another network segment You also need to define a VLAN for each IP subnet connected directly to this switch Note that you must first create a VLAN as described under 5 7 3 Configuring Virtual LANs before configuring the corresponding subnet Subnet Configuration Destination Network Subnet Mask VLAN Proxy Arp RIP DVMRP EDIT 192 163 1 201 255 255 255 0 1 x x x IP Address Proxy Arp Disabled gt SubnetMask RIP Disabled gt Advanced gt gt VLAN DYMRP Disabled gt Advanced gt gt Delete Cancel Select WGS3 2620 User s Manual 135 Parameter Description IP Address The IP address associated with the specified VLAN interface By convention the last three digits should be set to 254 to readily distinguish this device as a router port Subnet Mask A template that identifies the address bits in the host address used for routing to specific subnets Each bit that corresponds to a 1 is part of the network subnet number and each bit that corresponds to O is part of the host number VLAN The VLAN associated with this IP interface Proxy ARP Enables or disables Proxy ARP for the interface This feature allows the switch forward an ARP request from a node in the attached subnetwork that does not have routing or a default gateway configured to a remote subnetwork See 6
80. address for a host device to a specific port on this switch Static unicast addresses are never aged out and cannot be learned by another port If any packets with a source address specified in this table enter another port they will be dropped The Static Unicast Address Table is described in the following figure and table Static Unicast Address Configuration MAC Address Port Edit 303030 303030 1 P mac Port Apply Delete Cancel Parameter Description MAC Address The MAC address of a host device attached to this switch Port The port to which the host device is attached Note To assign an address to a specific port enter it in the MAC Address field select the corresponding port and press Save To delete an address click and press Delete for the required entry WGS3 2620 User s Manual 125 5 7 1 5 Configuring the Static Multicast Address Table The Static Multicast Address Table can be used to assign a destination MAC address and the corresponding ports to the VLAN group used for a specific multicast service Static multicast addresses are never aged out and traffic with these addresses can be forwarded only to ports specified in this table Multicast Address Configuration MAC Address VLAN Port Edit 616060 606060 1 2 L Entry List MAC SY Address VLAN Port M O 2 B Da O s5 O 6 al is g Mo 11 B O3 1a 15 M 16 O7 Mis M19 M 20 21 22 123 24 25 T 26 Apply Delete Cancel Parameter Des
81. age Age The minimum value is 1 The maximum value is the lower of 10 or Max Message Age 2 1 The maximum time in seconds the root device will wait before changing states that is listening to learning to forwarding This delay is required because every device must receive information about topology changes before it starts to forward frames In addition each port needs time to listen for conflicting information that would make it return to a blocking state otherwise temporary data loops might result The maximum value is 30 The minimum value is the higher of 4 or Max Message Age 2 1 The maximum time in seconds a device can wait without receiving a configuration message before attempting to reconfigure All device ports except for designated ports should receive configuration messages at regular intervals Any port that ages out STA information provided in the last configuration message becomes the designated port for the attached LAN If it is a root port a new root port is selected from among the device ports attached to the network The minimum value is the higher of 6 or 2 x Hello Time 1 The maximum value is the lower of 40 or 2 x Forward Delay 1 GMRP Disabled GARP Multicast Registration Protocol GMRP allows network devices to register endstations with multicast groups If GMRP is globally enabled for the switch then you can individually enable or disable GMRP for a specific port
82. al 92 Parameter Description Destination A destination network subnet or host Network Destination The subnet mask that specifies the bits to match A routing entry will be Mask used for a packet if the bits in the address set by the destination mask match the Destination Network VLAN The VLAN within which the gateway or destination address resides Next Hop The IP address of the router at the next hop Type The IP route type for the destination network This switch supports the following types Direct A directly connected subnetwork Indirect A remote IP subnetwork or host address Myself A switch IP address on a specific IP subnetwork Bcast A subnetwork broadcast address Mcast An IP multicast address Invalid An illegal IP address to be filtered Protocol The route was learned in one of the following ways Local Manually configured Mgmt Set via SNMP ICMP Obtained via ICMP redirect RIP Learned via RIP protocol Other Learned by some other method Note Use the lt Next Page gt and lt Prev Page gt buttons to scroll through the routing table To display a specific page set the page number in the Page field and then press lt Apply gt Select lt Flush RIP gt to clear any routing entries learned through RIP WGS3 2620 User s Manual 93 4 6 6 3 1 Displaying Detailed Routing Information To display detailed routing information select any entry in the Routing Table with your cursor and pre
83. alues should not changed unless you are experiencing some difficulties with GMRP or GVRP registration deregistration Parameter Default VLAN and Priority Port VID 1 Port Default 0 Priority VLAN Layer 2 Tagging3 Rx All Tx All Multilayer Rx All Tx Untag Port GVRP Enabled Port Enabled GMRP Ingress Disabled Filtering Description These fields set the default values for VLANs port priority GVRP and GMRP The VLAN ID assigned to untagged frames received on this port Set the default ingress priority to any value beneath the priority threshold to specify the low priority queue or to any value equal to or above this threshold to specify the high priority queue Indicates whether or not VLAN tags will be included on frames transmitted out of this port The options include Rx All Accepts all frames tagged or untagged Rx Untag Only accepts untagged frames Tx All If PVID and frame tag are same sends tagged frame otherwise send untagged Tx Untag Sends only untagged frames Enables or disables GVRP for this port When disabled any GVRP packets received on this port will be discarded and no GVRP registrations will be propagated from other ports Note that GVRP must be enabled globally for the switch before this setting can take effect See 5 7 2 1 Configuring Global Bridge Settings Enables or disables GMRP for this port When enabled this port will allow endstations to register with multicast grou
84. anagement software Notes 1 By default BOOTP is disabled To enable BOOTP see IP Configuration Layer 2 Mode 2 Each VLAN group can be assigned its own IP interface address Therefore if the port connected to the management station has joined several VLANs you can manage the switch via any of these IP addresses 3 This switch supports four concurrent Telnet sessions 4 The on board program only provides access to basic configuration functions To access the full range of SNMP management functions you must use SNMP based network management software WGS3 2620 User s Manual 9 Chapter 4 Console Interface 4 1 Login Screen Once a direct connection to the serial port or a Telnet connection is established the login screen for the on board configuration program appears as shown below 24 2G Layer 3 Fast Gigabit Ethernet Switch 8 29 2001 c Copyright PLANET Technology Corp User None Password If this is your first time to log into the configuration program then the default user names are admin with no password The administrator has Read Write access to all configuration parameters and statistics You should define a new administrator password record it and put it ina safe place Select User Configuration from the Management Setup Menu and enter a new password for the administrator Note that passwords can consist of up to 15 alohanumeric characters and are not case sensitive Note You are a
85. associated with this IP interface RIP Routing Information Protocol for unicast routing DVMRP Distance Vector Multicast Routing Protocol Note Use the lt Next Page gt and lt Prev Page gt buttons to scroll through the subnet configuration table To display a specific page set the page number in the Page field and then press lt Apply gt To modify an IP interface highlight the entry in the table and press Enter To add an IP interface press lt Add gt WGS3 2620 User s Manual 54 4 5 6 1 1 Adding an IP Interface Select lt Add gt on the Subnet Configuration menu to add an IP interface When the Add Subnet screen opens as shown below assign a VLAN group to this interface configure the IP address and then enable the required routing protocols You can specify a VLAN that has already been configured on this switch or press Select to open the Port Group Configuration screen and create or modify a VLAN group To configure the unicast or multicast routing protocols select the IP address for a specific interface from the Subnet Configuration menu and then select Advanced configuration from the Modify Subnet screen Add Subnet Select IP Address 192 168 1 254 Subnet Mask 255 255 255 0 Proxy are SENT RIP DISABLED DVMRP DISABLED lt Cancel gt Proxy ARP Status READ SELECT Use lt TAB gt or arrow keys to move lt Space gt to scroll options Parameter Description VLAN The VLAN associated with
86. associated with this entry Up Time The time elapsed since this entry was created Displaying the DVMRP Routing Table The DVMRP Routing Table contains all the IP multicast routes learned by the DVMRP protocol The routes displayed in this table are used by this switch to forward new IP multicast traffic They do not reflect active multicast flows DVMRP Routing Table Source Address Subnet Mask Uparan Interface Metric Up Time Neighbor 10 1 0 0 255 255 0 0 0 0 0 0 0 32 1805 Parameter Description Source Address The IP subnetwork at the root of the multicast delivery tree This subnetwork contains a known multicast source Subnet Mask Subnet mask that is used for the source address This mask identifies the host address bits used for routing to specific subnets Upstream The IP address of the network device immediately upstream for this Neighbor multicast delivery tree Interface The IP interface on this switch that connects to the upstream neighbor Metric The metric for this interface used to calculate distance vectors Up Time The time elapsed since this entry was created WGS3 2620 User s Manual 156 Displaying the DVMRP Neighbor Table The DVMRP Neighbor Table contains the switchs DVMRP neighbors as discovered by receiving DVMRFP protocol messages DVMRP Neighbor Table Interface ree Up Time Expire Time Version Rev Route 1 10 2 32 254 1237 31 3 21 Parameter Description Interface The IP interface on this switch that connects
87. blem has been resolved You may also disable a port for security reasons Auto Negotiate Enabled Enables or disables auto negotiation for the following features Port Type Speed Duplex Mode Flow Control 10 100BASE T auto auto auto 1000BASE T 1000M full duplex auto The 10 100BASE TX ports can auto negotiate the speed to 10 100 Mbps and the transmission mode to half full duplex The 1000BASE T ports are all fixed at the indicated speed and duplex mode All ports can auto negotiate flow control Default Type 10M Half Duplex If auto negotiation is disabled the port will be set to the indicated speed and duplex mode Current Type Indicates the current speed and duplex mode Flow Control Disabled Used to enable or disable flow control Flow control can eliminate frame loss by blocking traffic from end stations or segments connected directly to the switch when its buffers fill When enabled back pressure is used for half duplex and IEEE 802 3x for full duplex Note that flow control should not be used if a port is connected to a hub Jack Type Shows the jack type for each port Ports 1 24 RJ 45 Ports 25 26 RJ 45 Edit Click to edit communication parameters WGS3 2620 User s Manual 121 5 7 1 2 Using a Port Mirror for Analysis You can mirror traffic from any source port to a target port for real time analysis You can then attach a logic analyzer or RMON probe to the target port and study the traffic crossing the source
88. cation facility for interfacing to a terminal device over TCP IP WGS3 2620 User s Manual 185 Trivial File Transfer Protocol TFTP A TCP IP protocol commonly used for software downloads Virtual LAN VLAN A Virtual LAN is a collection 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 allowing users to share information and resources as though located on the same LAN XModem A protocol used to transfer files between devices Data is grouped in 128 byte blocks and error corrected WGS3 2620 User s Manual 186
89. cription MAC The destination MAC address for a multicast service Address VLAN The VLAN corresponding to this multicast service Port The ports to which this multicast traffic can be forwarded Note To assign a destination MAC address to one or more ports enter its address and the corresponding VLAN select the required ports and then press Apply To delete an address click and press Delete for the required entry To modify an address press for the required entry to copy the configuration to the edit fields make any necessary changes then press Apply WGS3 2620 User s Manual 126 5 7 2 Using the Bridge Menu The Bridge menu is used to configure settings for the Spanning Tree Algorithm as well as the global bridge settings for GMRP GARP Multicast Registration Protocol and GVRP GARP VLAN Registration Protocol traffic classes priority threshold and address aging time The Spanning Tree Algorithm can be used to detect and disable network loops and to provide backup links between switches bridges or routers This allows the switch to interact with other bridging devices that is an STA compliant switch bridge or router in your network to ensure that only one route exists between any two stations on the network and provide backup links that automatically take over when a primary link goes down For a more detailed description of how to use this algorithm refer to 6 1 3 Spanning Tree Algorithm Menu Description Bri
90. d at every multicast switch router it passes through to ensure that traffic is passed on only to the hosts which subscribed to this service This switch uses IGMP Internet Group Management Protocol Snooping to monitor for any attached hosts who want to receive a specific multicast service It looks up the IP Multicast Group used for this service and adds any port which received a similar request to that group You can use the IGMP Snooping Configuration screen to configure multicast filtering as shown below IGMP Snooping Configuration IGMP Snooping Status Disabled IGMP Router Timeout Minutes 5 IGMP Group Timeout Minutes 5 Act as IGMP Querier Disabled Apply Cancel Parameter Default Description IGMP Snooping Disabled If enabled the switch will monitor network traffic to determine Status which hosts want to receive multicast traffic This is also referred to as IGMP Snooping IGMP Router 5 A switch port that stops receiving multicast protocol packets Timeout for this interval will be removed from the IGMP forwarding list Range 3 5 minutes IGMP Group 5 The time between spotting an IGMP Report message for an Timeout IP multicast address on a specific port before the switch removes that entry from its list Range 3 5 minutes Act as IGMP Disabled If enabled the switch can serve as the querier which is Querier responsible for asking hosts if they want to receive multicast traffic 1 This it
91. d to a physical MAC address MAC Address MAC address statically mapped to the corresponding IP address Interface The index number of the IP interface that will use this static ARP entry Port 0 refers to the CPU WGS3 2620 User s Manual 65 4 5 6 4 Static Route Configuration This switch can be configured to dynamically learn the routes to other IP networks subnets or hosts using unicast or multicast routing protocols If the route to a specific destination cannot be learned via these protocols or you wish to restrict the path used for transmitting traffic to a destination then it can be statically configured using the Static Route Table Before defining a static route remember that you must first configure at least one IP interface on this switch Static routes take precedence over dynamically learned routes and remain in the table until you remove them or the corresponding IP interface from this switch Static Route Table Destination Network Destination Mask VLAN Hext Hop Type 10 1 3 0 255 255 255 0 1 203 70 249 250 Indirect lt Apply gt Total 1 lt Prev Page gt lt Hext Page gt Add routing entry Use lt TAB gt or arrow keys to move lt Enter gt to select Parameter Description Destination A destination network subnet or host Network Destination The subnet mask that specifies the bits to match A routing entry will Mask be used for a packet if the bits in the address set by the destination mask match
92. d to enable disabled the Fast Forwarding Spanning Tree mode for the selected port In this mode ports skip the Blocked Listening and Learning states and proceed straight to Forwarding Since end nodes cannot cause forwarding loops they can pass through the Spanning Tree state changes more quickly than allowed by standard convergence time Fast Forwarding can achieve quicker convergence for end node workstations and servers and also overcome other STA related time out problems Remember that Fast Forwarding should only be enabled for ports connected to an end node device WGS3 2620 User s Manual 46 4 5 4 Configuring Virtual LANs You can use the VLAN configuration menu to assign any port on the switch to any of up to 256 Virtual LAN groups In conventional networks with routers broadcast traffic is split up into separate domains Switches do not inherently support broadcast domains This can lead to broadcast storms in large networks that handle traffic such as IPX or NetBEUI By using IEEE 802 1Q compliant VLANs you can organize any group of network nodes into separate broadcast domains confining broadcast traffic to the originating group This also provides a more secure and cleaner network environment For more information on how to use VLANs see 6 3 Virtual LANs The VLAN configuration screens are described in the following sections 4 5 4 1 VLAN Port Configuration You can use the VLAN Port Configuration screen to con
93. dge Contains global bridge settings for STA including bridge priority Configuration hello time forward delay maximum message age GMRP GVRP traffic class priority threshold and address aging time STA Port Contains STA settings for individual ports including port priority path Configuration cost and fast forwarding 5 7 2 1 Configuring Global Bridge Settings The following figure and table describe bridge configuration for STA GMRP GVRP priority threshold and address aging time Bridge Configuration Spanning Tree Enabled GMRP Disabled gt Bridge Priority 32768 GVRP Disabled Hello Time seconds Bo Priority Threshold 4 gt Forward Delay seconds is Aging Time seconds 300 seconds Maximum Age seconds 20 Apply Cancel Parameter Default Description Spanning Enabled Enable this parameter to participate in a STA compliant network Tree Bridge 32 768 Bridge priority is used in selecting the root device root port and Priority designated port The device with the highest priority becomes the STA root device However if all devices have the same priority the device with the lowest MAC address will then become the root device Enter a value from 0 65535 Remember that the lower the numeric value the higher the priority Hello Time 2 Time interval in seconds at which the root device transmits a configuration message WGS3 2620 User s Manual 127 Forward 15 Delay Maximum 20 Mess
94. dges routers and host computers SNMP is typically used to configure these devices for proper operation in a network environment as well as monitor them to evaluate performance and detect potential problems 6 9 Remote Monitoring RMON Remote Monitoring provides a cost effective way to monitor large networks by placing embedded or external probes on distributed network equipment hubs switches or routers Network management software can access the embedded probes in network products to perform traffic analysis troubleshoot network problems evaluate historical trends or implement proactive management policies RMON has already become a valuable tool for network managers faced with a quickly changing network landscape that contains dozens or hundreds of separate segments RMON is the only way to retain control of the network and analyze applications running at multi megabit speeds It provides the tools you need to implement either reactive or proactive policies that can keep your network running based on real time access to key statistical information This switch provides support for mini RMON which contains the four key groups required for basic remote monitoring These groups include Statistics Includes all the tools needed to monitor your network for common errors and overall traffic rates Information is provided on bandwidth utilization peak utilization packet types errors and collisions as well as the distribution of packet sizes
95. dit 192 168 1 50 12 34 56 12 34 56 1 rA IP Address MAC Address Interface Add Delete Cancel Parameter Description IP Address IP address statically mapped to a physical MAC address MAC Address MAC address statically mapped to the corresponding IP address Interface The index number of the IP interface that will use this static ARP entry See 5 7 5 1 Subnet Configuration or 5 8 6 IP Menu Note To add a static address specify it in the dialog box at the bottom of the screen and press Add To delete a static address click on the edit icon for the required entry and press Delete WGS3 2620 User s Manual 141 5 7 5 4 Static Route Configuration This switch can be configured to dynamically learn the routes to other IP networks subnets or hosts using unicast or multicast routing protocols If the route to a specific destination cannot be learned via these protocols or you wish to restrict the path used for transmitting traffic to a destination it can be statically configured using the Static Route Table Before defining a static route remember that you must first configure at least one IP interface on this switch See 5 7 5 1 Subnet Configuration Static routes take precedence over dynamically learned routes and remain in the table until you remove them or the corresponding IP interface from this switch Static Route Table Destination ae F A Natwork Destination mask YVlan Next hop Type Metrics Edit 192 168 5 0 255 255
96. e Once RIP and DVMRP have been enabled globally you can enable or disable them for any specific subnet via the Subnet Configuration menu 5 7 5 1 Subnet Configuration Setting the ARP Timeout You can use the following configuration screen to modify the aging time for dynamically learned entries in the ARP cache ARP Configuration ARP Timeout Minutes 20 Cancel Apply Parameter Default Description ARP 20 minutes The time that dynamically learned entries are retained in the Timeout ARP cache Range 0 999 minutes where 0 disables aging Setting the RIP Advertisement Policy You can use the following configuration screen to set the timing interval and policies RIP uses to advertise route information RIP Configuration RIP Update Time Sec fo Default Route Advertisement Disabled Static Route Advertisement Disabled Ignore Host Route Disabled Cancel Apply WGS3 2620 User s Manual 1 W O Parameter Default Description RIP Update 30 seconds The interval at which RIP advertises known route Time information Range 0 999 seconds where 0 disables route advertisements Default Route Disabled Enables or disables advertising this switch as a default Advertisement router Static Route Disabled Enables or disables advertisement of static routes Advertisement Configuring BOOTP DHCP Relay If a DHCP BOOTP server is not located in the same subnet with a host you can confi
97. e Protocol for the bridge or for specific ports GMRP and GVRP for automatic registration of multicast and VLAN groups traffic class priority threshold and address aging time VLAN Menu Configures VLAN settings for specific ports and defines the port membership for VLAN groups IGMP Snooping Configures IGMP multicast filtering Configuration IP Menu Configures the subnets for each VLAN group global configuration for ARP and Proxy ARP unicast and multicast protocols static ARP table entries static routes and the default route Security Menu Configures MAC and IP Address filtering 1 Only displayed for Layer 2 mode 2 Only displayed for multilayer mode Note that this menu includes IGMP Snooping Configuration WGS3 2620 User s Manual 119 5 7 1 Layer 2 Menu The Layer 2 menu contains options for port configuration port mirroring and port trunking These menu options are described in the following sections Menu Description Port Enables any port enables disables flow control and sets Configuration communication mode to auto negotiation full duplex or half duplex Mirror Port Sets the source and target ports for mirroring Configuration Port Trunking Specifies ports to group into aggregate trunks Configuration Static Unicast Used to manually configure host MAC addresses in the unicast table Address Table Static Multicast Used to manually configure host MAC addresses in the multicast Address Table table 5 7
98. e at start up time On multicast links some hosts also discover router addresses by listening to routing protocol traffic The ICMP Router Discovery message is an alternative router discovery method that uses a pair of ICMP messages on multicast links It eliminates the need to manually configure router addresses and is independent of any specific routing protocol ICMP Router Discovery messages are called Router Advertisements and Router Solicitations Each router periodically multicasts a R outer Advertisement from each of its multicast interfaces announcing the IP address es of that interface Hosts discover the addresses of their neighboring routers simply by listening for advertisements When a host attached to a multicast link starts up it may multicast a Router Solicitation to ask for immediate advertisements rather than waiting for the subsequent periodic ones to arrive Router Discovery messages do not constitute a routing protocol they enable hosts to discover the existence of neighboring routers but not which router provides a route to a particular destination If a host chooses a poor first hop router for a particular destination it should receive an ICMP Redirect from that router identifying a better one 6 2 5 Proxy ARP When a node in the attached subnetwork does not have routing or a default gateway configured ARP Proxy can be used to forward an ARP request to a remote subnetwork When the switch receives an ARP
99. e ports use lt Add gt To delete or modify an address highlight it with the cursor and press Enter To scroll through the address table use the lt Next Page gt and lt Prev Page gt buttons To display a specific page set the page number in the Page field and then press lt Apply gt WGS3 2620 User s Manual 41 4 5 3 Using the Bridge Menu The Bridge menu is used to display or configure settings for the Spanning Tree Algorithm as well as the global bridge settings for GMRP GARP Multicast Registration Protocol and GVRP GARP VLAN Registration Protocol traffic classes priority threshold and address aging time The Spanning Tree Algorithm can be used to detect and disable network loops and to provide backup links between switches bridges or routers This allows the switch to interact with other bridging devices that is an STA compliant switch bridge or router in your network to ensure that only one route exists between any two stations on the network and provide backup links that automatically take over when a primary link goes down For a more detailed description of how to use this algorithm refer to Spanning Tree Algorithm on Chapter Advanced Topics Bridge Menu Bridge Configuration Spanning Tree Port Configuration Change the bridge configuration Use lt TAB gt or arrow keys to move lt Enter gt to select Menu Description Bridge Contains global bridge settings for STA including brid
100. e switch before this setting can take effect See 4 5 3 1 Configuring Global Bridge Settings GMRP Enabled Enables or disables GMRP for this port When enabled this port will allow end stations to register with multicast groups using GMRP Note that GMRP must be enabled for the switch before this setting can take effect IGMP and IGMP Snooping also provide multicast filtering See 6 4 2 IGMP Protocol Ingress Disabled If enabled incoming frames for VLANs which do not include Filtering 4 this ingress port in their member set will be discarded at the ingress port 4 This control does not affect VLAN independent BPDU frames such as GVRP or STP However they do affect VLAN dependent BPDU frames such as GMRP WGS3 2620 User s Manual 49 4 5 4 2 VLAN Table Configuration Use this screen to create a new VLAN or modify the settings for an existing VLAN VLAN Menu VLAN Table Configuration Port 1 2 VLAH 12345678901234567890123456 1 SSSSSSSSSSSSSSSSSSSSSSSSSS Normal 2 8 S S Static R Reg Fixed X Forbidden Page 1 lt Apply gt Total 1 Pages lt OK gt lt Prev Page gt lt Hext Page gt lt Add gt Return to previous panel Use lt TAB gt or arrow keys to move lt Enter gt to select Parameter Description VLAN The ID for the VLAN currently displayed Range 1 4094 Port Port entries may be marked as Normal Uses GVRP to determine port membership S Static Adds port as a static
101. ect sunlight and away from heat sources or areas with a high amount of electromagnetic interference e If you intend to mount the switch in a rack make sure you have all the necessary mounting screws brackets bolts and nuts and the right tools e Check if network cables and connectors needed for installation are available 2 3 1 Mounting Switches in a Rack Please comply with the following instructions to ensure that your switch is securely mounted in the rack 1 Use a standard EIA 19 inch rack 2 Use the brackets and screws supplied in the rack mounting kit 3 Use a cross head screwdriver to attach the brackets to the side of the switch 4 Position the switch in the rack by lining up the holes in the brackets with the appropriate holes on the rack and then use the supplied screws to mount the switch in the rack 2 4 Connecting the Switch System The Switch provides 26 RJ 45 ports The transmission speed for each port is automatically set by the switch to match the highest speed supported by the connected device The transmission mode can be set for each port using auto negotiation if also supported by the attached device However if the device attached to any port on the switch does not support auto negotiation you can manually configure the transmission mode via the console port on the rear panel or via an in band connection including Telnet the Web agent 2 4 1 Making a Connection to an RJ 45 Port The RJ 45 ports sup
102. eeeseeeeenneeeeees 5 7 5 Configuring IP Settings Peer er cc rer eccccccccccccreccccccccccceseccccccecccceeececcceces 5 7 5 1 Subnet Configuration 5 cass eck chncddete bacsestabcesieisveceetatasdenend 5 7 5 2 Protocol Configuration sscavsessesecwaceceessanacvexnarotiesnorsduaeads once 5 7 5 3 Static ARP Confi SUPA onse E 5 7 5 4 Static Route Configuration ssseseeeeereessssssesrrereeessssssseee 5 7 5 5 Configuring the Default Route ecceeeeeeeeeeceeeeeeeeeeeeees 5 7 6 Configuring Security Filters csyscssceacsssswecawatebucaees Gass vtehnestsvees 5 7 6 1 Configuring MAC Address Filters eessseeeeeeeeeeeessssseeee 5 7 6 2 Configuring IP Address Filters lt 2vccsvvsemnseecomiurasesouedaees 5 8 Monitoring the Switch eesesososocoosococoososocsoosocoooososoooososocooososoooosocoooooo 5 8 1 Displaying Pott Statistic Sonneries anii u i R s 5 8 1 1 Displaying Ethernet Port Statistics cccceceeecceeeeeeeeeeeees 5 8 1 2 Displaying RMON Statistics 20 0 0 eeceeeeseeceeeeeeeeeeeeeeeees 5 8 2 Layer 2 Address Tables eesesesosocoososoooosoooooosocoooososoooososocooosocsoooosocoooooo 5 8 2 1 Displaying the Unicast Address Table 5 8 3 Displaying Bridge Information eeeeeeeesecececeeeeeeeeeeenteeeeees 5 8 3 1 Viewing the Current Spanning Tree Information 5 8 3 2 Displaying the Current STA for Ports 0 0 0 0 ceeeeeeeeees 5 8 4 Displaying VLAN Informati
103. een any two switches The RJ 45 ports on this switch can be grouped into a trunk consisting of two four or eight ports creating an aggregate bandwidth up to 400 800 or 1600 Mbps when operating at full duplex Beyond balancing the load across each port in the trunk the additional ports provide redundancy by taking over the load if another port in the trunk should fail However before making any physical connections between devices use the Trunk Configuration menu to specify the trunk on the devices at both ends When using a port trunk remember that Ehe ports used in a trunk must all be RJ 45 The ports that can be assigned to the same trunk are listed below lt lt 13 1 gt gt lt lt 14 2 gt gt lt lt 15 3 gt gt lt lt 16 4 gt gt lt lt 17 5 gt gt lt lt 18 6 gt gt lt lt 19 7 gt gt lt lt 20 8 gt gt lt lt 21 9 gt gt lt lt 22 10 gt gt lt lt 23 11 gt gt lt lt 24 12 gt gt lt lt 13 1 14 2 gt gt lt lt 15 3 16 4 gt gt lt lt 17 5 18 6 gt gt lt lt 19 7 20 8 gt gt lt lt 21 9 22 10 gt gt lt lt 23 11 24 12 gt gt lt lt 13 1 14 2 15 3 16 4 gt gt lt lt 17 5 18 6 19 7 20 8 gt gt lt lt 21 9 22 10 23 11 24 12 gt gt Ports can only be assigned to one trunk Ehe ports at both ends of a connection must be configured as trunk ports Ethe ports at both ends of a trunk must be configured in an identical manner including com
104. elect Parameter Description Trunk The trunk identifier Port Count Trunks can contain 2 4 or 8 ports Port Number The ports assigned to each trunk To add a trunk press lt Add gt To delete a trunk highlight the required entry and press Enter Before disconnecting a port trunk take the following steps e Before removing a port trunk via the configuration menu you must disable all the ports in the trunk or remove all the network cables Otherwise a loop may be created e To disable a single link within a port trunk you should first remove the network cable and then disable both ends of the link via the configuration menu This allows the traffic passing across that link to be automatically distributed to the other links in the trunk without losing any significant amount of traffic WGS3 2620 User s Manual 39 4 5 2 4 Configuring the Static Unicast Address Table The Static Unicast Address Table can be used to assign the MAC address for a host device to a specific port on this switch Static unicast addresses are never aged out and cannot be learned on another port If any packets with a source address specified in this table enter another port they will be dropped The Static Unicast Address Table is described in the following figure and table Layer 2 Menu Static Address Table Address Address 00 30 4F 01 23 45 00 30 4F 12 34 56 00 30 4F 23 45 67 12 34 56 78 91 12 12 34 56 78 91 23 lt Apply gt Total 1 lt Next
105. elected entry to enabled or disabled WGS3 2620 User s Manual 27 4 4 4 User Login Configuration Use the User Configuration menu to restrict management access based on specified user names and passwords There are two user types Administrator and Guest Only the Administrator has write access for parameters governing the SNMP agent You should therefore assign a user name and password to the Administrator as soon as possible and store it in a safe place If for some reason your password is lost or you cannot gain access to the System Configuration Program contact Technical Support for assistance The parameters shown on this screen are indicated in the following figure and table User Configuration Access Right Console Telnet HTTP GUEST DISABLED DISABLED EHABLED ADMIN EHABLED EHABLED EHABLED Return to previous panel Use lt TAB gt or arrow keys to move lt Enter gt to select Parameter Description User Name Specifies a user authorized management access to the switch via the console Telnet or HTTP Access There are two options ADMIN Read Write for all screens GUEST Right Read Only for all screens Console Authorizes management via the console Telnet Authorizes management via Telnet HTTP Authorizes management via HTTP that is Microsoft Internet Explorer 4 0 or later version It does not support Netscape currently WGS3 2620 User s Manual 28 To add a new user select lt Add gt When you add a user
106. em is only displayed for Layer 2 mode For multilayer mode the full IGMP protocol set is automatically enabled disabled along with DVMRP See IGMP and DVMRP on 6 4 Multicast Filtering 2 This item is only displayed for Layer 2 mode When IGMP is enabled for multilayer mode the switch will always serve as the querier if elected WGS3 2620 User s Manual 134 5 7 5 Configuring IP Settings If this switch is set to multilayer mode the IP Menu will be displayed Use this menu to configure the IP subnets for each VLAN on your switch the unicast and multicast routing protocols static ARP entries static IP routes and the default IP route Parameter Description Subnet IP Subnet Configuration Specifies the IP interface for VLANs Configuration configured on this switch including the subnet address and routing protocols Port Group Configuration See 5 7 3 2 VLAN Table Configuration Protocol Configures ARP timeout enables Proxy ARP sets the preferred Configuration servers for BOOTP DHCP Relay as well as enabling configuring unicast and multicast protocols globally for this switch Static ARP Used to map an IP address to a specific physical MAC address Configuration Static Route Used to configure static routes to other IP networks subnetworks or hosts Default Route Defines the router to which this switch will forward all traffic for unknown networks 5 7 5 1 Subnet Configuration Use this menu to specify an IP interf
107. entry GVRP protocol is disabled R Registration Fixed Adds port as a static entry GVRP protocol messages are still forwarded through this port X Forbidden Disables GVRP for this VLAN on the specified port If a removed port is no longer assigned to any other group as an untagged port it will automatically be assigned to VLAN group 1 as untagged Note Use the lt Next Page gt and lt Prev Page gt buttons to scroll through the table To display a specific page set the page number in the Page field and press lt Apply gt To modify a VLAN group highlight the entry in the table and press Enter To add a VLAN group press lt Add gt WGS3 2620 User s Manual 50 4 5 5 Configuring IGMP Snooping Multicasting is used to support real time applications such as video conferencing or streaming audio A multicast server does not have to establish a separate connection with each client It merely broadcasts its service to the network and any hosts which want to receive the multicast register with their local multicast switch router Although this approach reduces the network overhead required by a multicast server the broadcast traffic must be carefully pruned at every multicast switch router it passes through to ensure that traffic is only passed on to the hosts which subscribed to this service This switch uses IGMP Internet Group Management Protocol Snooping to monitor any attached hosts which want to receive a specific multica
108. eo conferencing and data sharing are widely used today efficient multicasting has become vital A common approach is to use a group registration protocol that lets nodes join or leave multicast groups A switch or router can then easily determine which ports contain group members and send data out to those ports only This procedure is called multicast filtering The purpose of IP multicast filtering is to optimize a switched networks performance so multicast packets will only be forwarded to those ports containing multicast group hosts or multicast routers switches instead of flooding traffic to all ports in the subnet VLAN The switch routing switch supports IP multicast filtering not only by passively monitoring IGMP Query and Report messages and DVMRP Probe messages to register end stations as multicast group members Layer 2 but also by actively sending GMRP Query messages to learn the location of multicast routers switches and member hosts in multicast groups within each VLAN Layer 3 This switch also supports the DVMRP multicast routing protocol required to forward multicast traffic to other subnets 6 4 1 IGMP Snooping A Layer 2 switch can passively snoop on IGMP Query and Report packets transferred between IP multicast routers switches and IP multicast host groups to learn the IP multicast group members It simply monitors the IGMP packets passing through it picks out the group registration information and configures multicast fil
109. ererressssssssrrrerreesssss 175 6 7 2 User Name and Passwords sseeeesssseeeesssserrssssseresssssrresssserees 175 6 7 3 MAC Address Filters cc assist iee aac ates 175 61 4 IP Address PINGES 0 2 iuselel en cataynin aces aae eiaa gees wanda 175 6 8 SNMP Management Software ccccccsessecnssssteccccesenseesensnnseneseccessenaes 176 6 9 Remote Monitoring RMON ssseesessssssssssssssereessssssssereereesssssssserrereeesssss 176 Appendix A PrOuUDIESHOOUMG ses faicseessees asec chavs vevededsedtnccdcaceseesaenadaanccasuedianayeteccatones 177 WGS3 2620 User s Manual 7 A 1 Troubleshooting Chart E ae ad at ar et ea A A lee Sate 177 A 2 Upgrading Firmware via the Serial Port ccsssccccceeeeeeseeeeetnnneeeees 178 Appendix B Pin sAsstOnMie nt S555 cates ce caapsscayl cad genensentaphiaaccasasade eset oistans 180 B 1 Console Port Pin Assignments c cko0s reid iareasdesdusdscevendticaacuadeereagtieeae 180 B 2 DB 9 Port Pin Assignments ca assessaccavec suede ecessaascaswnn sceca saeaiucaweasecasweewes 181 B 3 Console Port to 9 Pin COM Port on PC 0 ec ccecceceeeeeeeeentteeeeeeeeeeeeeeees 181 B 4 Console Port to 25 Pin DCE Port on Modem ccesseeeeeeceeeeeeeeeees 182 GLOSSARY oea e ney eee TO eee ee aan ye ney ene ey ene ney eee 183 WGS3 2620 User s Manual Chapter 1 Introduction The WGS3 2620 is a 26 port IP based Layer 3 Ethernet Switch with 24 port 10 100Mbps and 2 port 1000Mbps copper interface
110. ev Page gt lt Hext Page gt Add IP address filter Use lt TAB gt or arrow keys to move lt Enter gt to select Note To add a IP address to the security filter use lt Add gt To delete an address highlight it with the cursor and select Enter Use the lt Next Page gt and lt Prev Page gt buttons to scroll through the table To display a specific page set the page number in the Page field and then press lt Apply gt To add an entry press lt Add gt WGS3 2620 User s Manual 71 4 6 Monitoring the Switch The Network Monitor Menu provides access to port statistics address tables STA information VLANs registration and forwarding information multicast groups Each of the screens provided by these menus is described in the following sections Menu Port Statistics Layer 2 Address Table Bridge Menu VLAN Menu IP Multicast Registration Table 1 IP Menu 2 Network Monitor Menu Port Statistics Layer 2 Address Table Bridge Menu VLAH Menu IP Menu Display port statistics Use lt TAB gt or arrow keys to move lt Enter gt to select Description Displays statistics on port traffic including information from the Interfaces Group Ethernet like MIB and RMON MIB Contains the unicast address table Displays Spanning Tree settings for the overall switch and for specific ports Displays ports dynamically learned through GMRP or GVRP and ports that are currently forwarding
111. figure GARP the default VLAN identifier default port priority VLAN tagging on the attached link GVRP and GMRP status and filtering of incoming frames for VLAN groups to which this port does not belong VLAN Menu VLAN Port Configuration GARP Configuration Join Time Centiseconds Leave Time 60 Centiseconds Leave All Time 1000 Centiseconds VLAN and Priority Port VID 1 Port Default Priority 0 VLAH Tagging Rx All Tx Untag GVRP EHABLED GMRP EHABLED Ingress Filtering DISABLED Port 1 lt Apply gt lt OK gt lt Cancel gt lt Prev Port gt lt NHext Port gt The join time for the port Use lt TAB gt or arrow keys to move other keys to make changes WGS3 2620 User s Manual 47 Parameter Default Description GARP 1 Group Address Registration Protocol is used by GVRP and GMRP to register or deregister client attributes for client services within a bridged LAN Join Time 20 The interval centiseconds between transmitting requests queries to participate in a group Leave Time 60 The interval centiseconds a port waits before leaving a group This time should be set to more than twice the Join Time This ensures that after a Leave or LeaveAll message has been issued the applicants can re join before the port actually leaves the group Leave All Time 1000 The interval centiseconds between sending out a LeaveAll query message for group participants and the port leaving the group This interval should be considerably
112. figure this switch to forward any host configuration queries to a server located on another subnet or on another network Depending on the configuration setup the switch either e Forwards the packet to a preferred server as defined in the switch configuration using unicast routing or e Broadcasts the DHCP Request again to another directly attached IP subnet specified in the switch configuration Specify the address for any DHCP server or specify the subnet address for an outbound IP interface already configured on this switch as described in the following screens Bootp Relay Database Configuration Index Server Address 1 10 1 2 3 2 192 168 10 5 Return to previous panel Use lt Enter gt to select Parameter Description Index Server Used to define any preferred DHCP servers or the outbound Address subnetwork for relaying a DHCP request broadcast Up to five entries are permitted WGS3 2620 User s Manual 64 4 5 6 3 Static ARP Configuration Use the following screen to display or edit entries in the Static ARP Table Entries added to this table are retained until the associated IP interface is deleted or the switch is reset to the factory defaults Static ARP Table IP Address MAC Address Interface 192 168 1 252 00 00 00 12 34 56 1 lt Apply gt Total 1 lt Prev Page gt lt Next Page gt Return to previous panel Use lt Enter gt to select Parameter Description IP Address IP address statically mappe
113. figuring Community Names ssscceceeeeeeeeeeeeees 5 6 2 2 Configuring IP Trap Mama gers sesi cscicsvccieios ss cieerdedeieaecsnanes 5 6 3 User Login Configuration sc 6 hc exeieens acer e om anea ees 5 6 3 1 Displaying the Current User Configuration 005 5 6 4 Downloading System Software eceecsssscccceeceeeeeeeessenneeeeees 5 6 5 Saving or Restoring the 5 7 Device Control Menu 5 7 1 Layer 2 Menu icseceucssazes 5 7 1 1 Configuring Port System Configuration seeseeeeeeeeessseeeeee eesesososoososocoooosocsoosososocoososoosososocsoosocoooososoooooo Parameteis oen A EA a ATAT 5 7 1 2 Using a Port Mirror for Analysis secccccceeeeeeeeeeeees 5 7 1 3 Configuring Port Trunks ij usexsoiaathoes ah nahak cas dearoavbaken 5 7 1 4 Static Unicast Address Table 00 ceeceeesseceeceeeeeeeeeeeeeees 5 7 1 5 Configuring the Static Multicast Address Table 5 7 2 Using the Bridge Menu eescesososoooosocoooosososoososoosososoooososocooososoooosoooooooo 5 7 2 1 Configuring Global Bridge Settings eeseeeeeeersseessssseeee 5 7 2 2 Configuring STA for POLS oa eE E EO 5 7 3 Configuring Virtual Ma Sic aces nseceie asa dlvenuadei cued draessieesedets 5 7 3 1 VLAN Port Configuration capes tenes ta x aasveeseteanoawetiewsen deunes 5 7 3 2 VLAN Table Configuration ceseeeseececcceeeeeeeeeeeees 5 7 4 Configuring IGMP Snooping eeeeeeessseeeceeeee
114. g any TFTP client utility such as the command line utility included in Windows NT 2000 XP For example using Windows NT from a DOS window command prompt enter the TFTP command in the form TFTP i host GET PUT source destination To transfer a file 1 On Switch Specify the IP address of the TFTP client and select Download from switch or Upload to Switch Then select lt Start gt from the menu to start 2 On TFTP Client Set the mode to lt binary gt specify the IP address of the target switch and the directory path name of the file to transfer Then start transferring the configuration from the TFTP client or the switch and wait until the transfer completes For example type tftp i 203 70 249 118 GET source wgs3 txt on Windows 2000 s command prompt to download switch s configuration and type tftp 4 203 70 249 118 PUT wgs3 txt to upload the configuration file to switch WGS3 2620 User s Manual 118 5 7 Device Control Menu The Device Control menu is used to control a broad range of functions including port mode port mirroring port trunking Spanning Tree Virtual LANs IP subnets multicast filtering and routing protocols Each of the setup screens provided by these configuration menus is described in the following sections Menu Description Layer 2 Menu Configures port communication mode mirror ports port trunking and static addresses Bridge Menu Configures the Spanning Tre
115. ge priority Configuration hello time forward delay maximum message age GMRP GVRP traffic class priority threshold and address aging time Spanning Tree Port Contains STA settings for individual ports including port priority Configuration path cost and fast forwarding WGS3 2620 User s Manual 42 4 5 3 1 Configuring Global Bridge Settings The following figure and GVRP priority threshold table describe bridge configuration for STA GMRP and address aging time Bridge Menu Bridge Configuration Spanning Tree Bridge Priority Hello Time in seconds DISABLED DISABLED Priority Threshold 4 Forward Delay in seconds Aging Time in seconds 300 Max age in seconds lt Apply gt lt Cancel gt The status of the spanning tree READ SELECT Use lt TAB gt or arrow keys to move lt Space gt to scroll options Parameter Default Spanning Enabled Tree Bridge 32 768 Priority Hello Time 2 Forward 15 Delay WGS3 2620 User s Manual Description Enable this parameter to participate in a STA compliant network Bridge priority is used in selecting the root device root port and designated port The device with the highest priority becomes the STA root device However if all devices have the same priority the device with the lowest MAC address will then become the root device Enter a value from 0 65535 Remember that the lower the numeric value the higher the priority Time
116. ghbor router timeout Parameter Default Description Metrics Probe Interval Neighbor Timeout 1 hop This value is used to select the best reverse path to networks that are connected directly to an interface on this switch Range 1 31 hops 10 The interval between sending neighbor probe messages to the seconds multicast group address for all DVMRP routers Range 5 30 seconds 35 The interval to wait without hearing from a DVMRP neighbor seconds before declaring it dead This is used for timing out routes and for setting the children and leaf flags Range 10 8000 seconds Note IGMP is automatically enabled disabled along with DVMRP See 6 4 2 IGMP Protocol WGS3 2620 User s Manual 138 5 7 5 2 Protocol Configuration Use the Protocol Configuration screen to globally enable or disable unicast or multicast routing protocols for the switch Parameter Description ARP Sets the aging time for dynamic ARP entries RIP Sets the interval at which the switch advertises known routes enables or disables advertising the switch as the default router and enables or disables advertising static routes Boot Relay Defines the preferred servers or the outbound subnetworks for broadcasting a BOOTP DHCP request IGMP Enables or disables IGMP Snooping The Advanced menu sets the Snooping timeout for inactive multicast ports or for specific multicast flows when there are no longer any clients See 5 7 4 Configuring IGMP Snooping Not
117. gorithm refer to 6 1 3 Spanning Tree Algorithm Menu Description Spanning Tree Displays a full list of STA values used for the bridge Bridge Information Spanning Tree Displays a list of STA values used for each port including status Port Information designated cost designated bridge and designated port 5 8 3 1 Viewing the Current Spanning Tree Information The STA Bridge Information screen displays a summary of STA information for the overall bridge To make any changes to these parameters use the Bridge STA Configuration menu as described on 5 7 2 Using the Bridge Menu The parameters shown in the following figure and table describe the current Bridge STA settings WGS3 2620 User s Manual 149 STA Bridge Information Priority 32768 Hello Time 2 seconds Max Age 20 seconds Forward Delay 15 seconds Hold Time 1 seconds Designated Root 32768 00304F18E640 Root Cost 0 Root Port 0 Configuration Changes 1 Topology Up Time 672565 Parameter Priority Hello Time Max Age Forward Delay Hold Time Designated Root Root Cost Root Port Description Device priority is used in selecting the root device root port and designated port The device with the highest priority becomes the STA root device However if all devices have the same priority the device with the lowest MAC address will then become the root device The time interval in seconds at which the root device transmits a configura
118. gure this switch to forward any host configuration queries to a server located on another subnet or on another network Depending on the configuration setup the switch either e Forwards the packet to a preferred server as defined in the switch configuration using unicast routing or e Broadcasts the DHCP Request again to another directly attached IP subnet specified in the switch configuration Specify the address for any DHCP server or specify the subnet address for an outbound IP interface already configured on this switch 5 7 5 1 Subnet Configuration as described in the following screens DHCP Relay Database Configuration Index Server Address Edit 10 1 23 192 168 10 5 S Index Server Address Add Delete Cancel Parameter Description Index Server Used to define any preferred DHCP servers or the outbound Address subnetwork for relaying a DHCP request broadcast Up to five entries are permitted Note To add a Relay Server specify the IP address in the dialog box at the bottom of the screen and press Add To delete a Relay Server click on the edit icon for the required entry and press Delete WGS3 2620 User s Manual 140 5 7 5 3 Static ARP Configuration Use the following screen to display or edit entries in the Static ARP Table Entries added to this table are retained until the associated IP interface is deleted or the switch is reset to the factory defaults Static ARP Table IP Address MAC Address Interface E
119. gured for VLAN groups based solely on endstation requests 6 3 2 Forwarding Tagged Untagged Frames Ports can be assigned to multiple tagged or untagged VLANs Each port on the switch is therefore capable of passing tagged or untagged frames To forward a frame from a VLAN aware device to a VLAN unaware device the switch first decides where to forward the frame and then strips off the VLAN tag However to forward a frame from a VLAN unaware device to a VLAN aware device the switch first decides where to forward the frame and then inserts a VLAN tag reflecting this ports default VID The default PVID is VLAN 1 for all ports but this can be changed VLAN aware VLAN aware switch switch VLAN 1 2 802 1Q tags VLAN 1 3 802 1Q tags VLAN aware switch trunk VLAN 1 2 3 802 1Q tags VLAN aware switch VLAN 1 2 3 VLAN aware switch VLAN 1 3 untagged VLAN aware switch WGS3 2620 User s Manual 169 6 3 3 Connecting VLAN Groups The switch supports communication within a common VLAN using store and forward switching However if you have devices in separate VLANs that must communicate and it is not practical to include these devices in a common VLAN then the VLANs can be connected via Layer 3 routing provided by this switch Traditional routers use only physical port numbers in their routing tables which provides no support for VLANs By contrast this device supports Layer 3 routing by using
120. h read write access can GET and GETNEXT commands as well as the SET command to configure the switch 6 7 2 User Name and Passwords This switch can also be accessed via a direct connection to the console port or through a network connection using Telnet or a Web browser When managing the switch by any of these means a user name and password is required to enter the system There are two sets of user names and passwords One set has administrator rights which allows you to view or modify system parameters The other set has read only access which allows you to view the status of the system but not to modify it 6 7 3 MAC Address Filters If you discover that some nodes are sending abnormal or malicious data that could adversely affect the network or cause security problems you can set their MAC addresses to be filtered by the switch Any packets with a source or destination address listed in the MAC address filter will then be dropped by the switch upon entry 6 7 4 IP Address Filters IP addresses can also set to be filtered by the switch IP packets with a source or destination address listed in the IP address filter will be dropped by the switch upon entry WGS3 2620 User s Manual 175 6 8 SNMP Management Software SNMP Simple Network Management Protocol is a communication protocol designed specifically for managing devices or other elements on a network Network equipment commonly managed with SNMP includes hubs switches bri
121. hange the baudrate back to 19200 press Enter to start decompressing the new firmware and then press Enter to open the Logon screen WGS3 2620 User s Manual 178 XModem Download to 0x00400020 SUCCESS P ermanent or T emporary Download P Update RunTime Image at 0x03040000 SUCCESS Change to original Baud Rate and Press lt ENTER gt to Run Application Decompress now run time code starting now Starting System MAINBOARD OCTOPUSO RAMBIST MAINBOARD OCTOPUS1 RAMBIST MAINBOARD OCTOPUS2 RAMBIST MAINBOARD OCTOPUS3 RAMBIST MAINBOARD DOLPHIN RAMBIST MAINBOARD STARFISH RAMBIST Press lt Enter gt to start UI For details on managing the switch refer to Chapter Chapter 4 Console Interface for information on the out of band console interface or Chapter Chapter 5 Web Interface for information on the Web interface WGS3 2620 User s Manual 179 Appendix B Pin Assignments B 1 Console Port Pin Assignments The DB 9 serial port on the switch s rear panel is used t o connect to the switch for out of band console configuration The on board menu driven configuration program can be accessed from a terminal a PC running a terminal emulation program or from a remote location via a modem connection The pin assignments used to connect to the serial port are provided in the following tables Pin 9 Figure B 1 DB 9 Console Port Pin Numbers WGS3 2620 User s Manual 180 B 2 DB 9 Port Pin
122. he DHCP Request packet so the server knows the subnet where the client is located Then depending on the configuration setup the switch either e Forwards the packet to a specific server as defined in the switchs configuration using unicast routing or e Broadcasts the DHCP Request again to another directly attached IP subnet specified in the switch configuration for the receiving IP subnet When the DHCP server receives the DHCP request it allocates a free IP address for the DHCP client from its scope in the DHCP clients subnet and sends a DHCP Response back to the DHCP Relay Agent The DHCP Relay Agent then broadcasts this DHCP Response packet received from the DHCP server to the appropriate client WGS3 2620 User s Manual 174 6 7 Security Features The switch provides security features that allow you to control management access and network access as described in the following sections 6 7 1 SNMP Community Strings Access to the switch using network management tools HP OpenView is controlled by SNMP community strings This switch supports up to five community strings A character string indicating the access rights of the management community must be provided whenever you send an SNMP message to the switch Each community has either read only or read write access rights A community that has read only access can only use GET and GETNEXT commands to view the current configuration settings and status of the switch While a community wit
123. header recalculating the IP header checksum and replacing the destination MAC address with either the MAC address of the destination node or that of the next hop router When another packet destined to the same node arrives the destination MAC can be retrieved directly from the Layer 3 address table the packet is then reformatted and sent out the destination port IP switching can be done at wire speed when the destination address entry is already in the Layer 3 address table WGS3 2620 User s Manual 163 If the switch determines that a frame must be routed the route is calculated only during setup Once the route has been determined all packets in the current flow are simply switched or forwarded across the chosen path This takes advantage of the high throughput and low latency of switching by enabling the traffic to bypass the routing engine once path calculation has been performed 6 2 3 Routing Path Management Routing Path Management involves the determination and updating of all the routing information required for packet forwarding including e Handling routing protocols e Updating the routing table e Updating the Layer 3 switching database 6 2 4 ICMP Router Discovery Before a host can send IP datagrams beyond its directly attached subnet it must discover the address of at least one operational router on that subnet Typically this can be accomplished by reading a list of one or more router addresses from a configuration fil
124. his switch will forward all traffic for unknown networks WGS3 2620 User s Manual 53 4 5 6 1 Subnet Configuration Use this menu to specify an IP interface for any VLAN configured on this switch that needs to communicate with a device outside of its own group that is another network segment You also need to define a VLAN for each IP subnet connected directly to this switch Note that you must first create a VLAN as described under Configuring Virtual LANs before configuring the corresponding subnet If you need to manage the switch in band then you must define the IP subnet address for at least one VLAN IP Subnet Configuration IP Address Subnet Mask DVMRP Status 192 168 1 254 255 255 255 0 DISABLED DISABLED OH lt Apply gt Total 1 Pages lt Prev Page gt lt Hext Page gt lt Add gt The page number Use lt TAB gt or arrow keys to move other keys to make changes Parameter Description IP Address The IP address associated with the specified VLAN interface In general it is the router IP address for the specified VLAN members By convention the last three digits should be set to 254 to readily distinguish this device as a router port Subnet Mask A template that identifies the address bits in the host address used for routing to specific subnets Each bit that corresponds to a 1 is part of the network subnet number and each bit that corresponds to O is part of the host number VLAN The VLAN
125. idge will then initiate negotiations with other bridges to WGS3 2620 User s Manual 160 reconfigure the network to reestablish a valid network topology The following figure gives an illustration of how the Spanning Tree Algorithm assigns bridging device ports Z Device ra Designated Port Designated Port P A Root Port A H A WGS3 2620 User s Manual 161 6 2 Layer 3 Switching The two major functions provided by a Layer 3 switch include IP Switching and Routing Path Management When the switch is set to multilayer mode it acts as a routing switch with support for standard IP routing and the ability to pass traffic between VLANs as required However when the switch is first set to multilayer mode no default routing is defined As with all traditional routers the routing function must first be configured to work RIP 6 2 1 Initial Configuration In the default configuration all ports belong to the same virtual LAN and the switch provides only Layer 2 functionality So you should first group all the ports that belong to the same subnet into virtual LANs By separating the switch into different VLANs the network is partitioned into subnetworks that are disconnected at Layer 2 Network traffic within the same subnet is still switched using Layer 2 switching And the VLANs can now be interconnected only as required with Layer 3 switching Each VLAN represents a virtual interface to Layer
126. if an IGMP registration packet was seen crossing the port Note To scroll through the address table use the lt Next Page gt and lt Prev Page gt buttons To display a specific page set the page number in the Page field and then press lt Apply gt WGS3 2620 User s Manual 88 4 6 6 IP Address Tables This menu contains IP subnet information the ARP cache routing table as well as multicast groups and multicast routing information IP Address Table Subnet Information ARP Table Routing Table Multicast Table OSPF Table Display and change the static route table Use lt TAB gt or arrow keys to move lt Enter gt to select Menu Description Subnet Displays a list of all the IP interfaces configured on this switch Information ARP Table Shows the IP to MAC addresses discovered by ARP Routing Table Shows the routes through which all recognized Ethernet networks and the corresponding VLAN can be reached Multicast Table Displays all the multicast groups active on this switch including the multicast IP address and the corresponding VLANs Also includes the IGMP registration table the multicast forwarding cache and DVMRP routing information WGS3 2620 User s Manual 89 4 6 6 1 Displaying Subnet Information You can display a list of all the IP interfaces configured on this switch This table includes the gateway address corresponding VLAN and member ports that use this address Subne
127. irected to the broadcast address Note that this does not include multicast packets The total number of good frames received that were directed to this multicast address The number of CRC alignment errors FCS or alignment errors The total number of frames received that were less than 64 octets long excluding framing bits but including FCS octets and were otherwise well formed Oversize Frames The total number of frames received that were longer than 1518 octets excluding framing bits but including FCS octets and were otherwise well formed The total number of frames received that were less than 64 octets in length excluding framing bits but including FCS octets and had either an FCS or alignment error The total number of frames received that were longer than 1518 octets excluding framing bits but including FCS octets and had either an FCS or alignment error The best estimate of the total number of collisions on this Ethernet segment The total number of frames including bad packets received and transmitted that were 64 octets in length excluding framing bits but including FCS octets The total number of frames including bad packets received and transmitted where the number of octets fall within the specified range excluding framing bits but including FCS octets Note Statistics are refreshed every 10 seconds by default See 4 4 2 Configuring the Serial Port WGS3 2620 User s Manual 71 4 6 2 Layer
128. k Monitor Menu Port Statistics Displays statistics on port traffic including information from the Interfaces Group Ethernet link MIB and RMON MIB Layer 2 Address Contains tables for all unicast static unicast and static Table multicast addresses as well as the filter table for MAC addresses Bridge Menu Displays Spanning Tree Bridge and Port information VLAN Menu Displays dynamic port registration information for VLANs as well as all VLAN forwarding information for static and dynamic assignment IP Multicast Displays all the multicast groups active on this switch Registration Table including the multicast IP addresses and corresponding VLANs IP Menu Displays all the IP subnets used on this switch as well as the corresponding VLANs and ports Also contains the ARP table routing table and multicast table Restart System Restarts the system with options to reload factory defaults Menu Exit Exits the configuration program 1 Only displays when the switch is set to Layer 2 mode 2 Only displays when the switch is set to multilayer mode WGS3 2620 User s Manual 13 4 3 System Information Menu Use the System Information Menu to display a basic description of the switch including contact information and hardware firmware versions System Information Menu System Information Switch Information lt OK gt Display System Information Use lt TAB gt or arrow keys to move lt Enter gt to select _
129. keys to move lt Enter gt to select Parameter Description IP Configuration Screen used to set the bootup option or configure the switch s IP parameters IP Connectivity Test Screen used to test IP connectivity to a specified device Ping HTTP Configuration Screen used to enable the Web agent This menu does not appear if the switch is set to multilayer mode In this case you need to configure an IP interface for each VLAN that needs to connect to any device outside of its own VLAN group See Subnet Configuration WGS3 2620 User s Manual 18 4 4 1 1 IP Configuration Layer 2 Mode Use the IP Configuration screen to set the boot up option or configure the switchs IP parameter s The screen shown below is described in the following table IP Configuration Interface Type IP Address Gateway IP IP State Ethernet E203 ee Se BE Subnet Mask 255 255 255 0 203 70 249 118 USER COHFIG Mgt Access All VLANs lt Cancel gt IP address of this system for Ethernet Use lt TAB gt or arrow keys to move other keys to make changes WGS3 2620 User s Manual Parameter Description Interface Type Indicates IP over Ethernet IP Address Subnet Mask Default Gateway IP State VLAN ID Mgt Access IP address of the switch you are managing The system supports SNMP over UDP IP transport protocol In this environment all systems on the Internet such as network i
130. layed have been accumulated since the last system reboot Select the required port The statistics displayed are indicated in the following figure and table Port Statistics Interfaces In Octets 853889 Octets 311123 In Unicast Pkts 2772 Unicast Pkts 2028 In Hon Unicast Pkts 4638 Hon Unicast Pkts 802 In Discards O Discards O In Errors 4 Errors O Alignment Errors O Errors 4 Ethernet Single Collisions 0 Multiple Collisions 0 Defered Transmissions 0 Late Collisions 0 Excess Collisions O Carrier Sense Errors 0 Drop Events 0 Fragments 0 Octets 1165012 Jabbers 0 Port Humber 1 lt Apply gt lt Reset gt lt Reset All gt lt Refresh gt lt Hext Port gt lt Prev Port gt Return to previous panel Use lt TAB gt or arrow keys to move lt Enter gt to select Parameter Description Interfaces Group In Octets The total number of octets received on the interface including framing characters In Unicast Pkts The number of subnetwork unicast packets delivered to a higher layer protocol In Non Unicast The number of non unicast that is subnetwork broadcast or Pkts subnetwork multicast packets delivered to a higher layer protocol In Discards The number of inbound packets which were chosen to be discarded even though no errors had been detected to prevent their being deliverable to a higher layer protocol One possible reason for discarding such a packet could be to free up buffer space
131. llowed three attempts to enter the correct password on the third failed attempt the current connection is terminated After you enter the user name and password you will have access to the system configuration program illustrated by the following menu map WGS3 2620 User s Manual 10 System Information System Information Menu Switch Information Network Configuration Serial Port Configuration Menu SNMP Configuration User Configuration IP Configuration 1 IP Connectivity Test Ping HTTP Configuration Management Setup SNMP Communities IP Trap Manager TFTP Download Configuration File System Mode Layer 2 Menu Bridge Menu VLAN Menu IP Menu 2 Device Control Menu IGMP Snooping Configuration 1 Security Menu Port Statistics Network Monitor Menu Bridge Menu VLAN Menu IP Menu 2 IP Multicast Registration Table 1 System Restart Menu Exit 1 Displayed for layer 2 mode only 2 Displayed for multilayer mode WGS3 2620 User s Manual Layer 2 Address Table 11 Unicast Address Table Layer 2 Multilayer Port Configuration Mirror Port Configuration Port Trunking Configuration Static Unicast Address Configuration Static Multicast Address Configuration Bridge Configuration Spanning Tree Port Configuration VLAN Port Configuration VLAN Table Configuration Subnet Configuration Protocol Configuration Static ARP Configuration Static Route Default
132. m WGS3 2620 User s Manual 2 available consult your dealer or local power company 9 This product is equipped with a three wire grounding type plug a plug having a third grounding pin This plug will only fit into a grounding type power outlet This is a safety feature If you are unable to insert the plug into the outlet contact your electrician to replace your outlet Do not defeat the purpose of the grounding type plug 10 Do not allow anything to rest on the power cord Do not place this product where persons will walk on the cord 11 If an extension cord is used with this product make sure that the total ampere ratings on the products into the extension cord do not exceed the extension cord ampere rating Also make sure that the total of all products plugged into the wall outlet does not exceed 15 amperes 12 Never push objects of any kind into this product through air ventilation slots as they may touch dangerous voltage points or short out parts that could result in a risk of fire or electric shock Never spill liquid of any kind on the product 13 Do not attempt to service this product yourself as opening or removing covers may expose you to dangerous voltage points or other risks Refer all servicing to service personnel Warnings 1 Wear an anti static wrist strap or take other suitable measures to prevent electrostatic discharge whenever handling this equipment 2 When connecting to a power outlet connect the field grou
133. maps to the corresponding IP address VLAN The VLAN group to which this host has been assigned Port The port this to which host device is attached Port O refers to an interface defined on this switch WGS3 2620 User s Manual 153 5 8 6 3 Routing Table The Routing Table lists the routes through which all recognized Ethernet networks and corresponding VLANs can be reached This table includes all routes learned through routing protocols or manual configuration Routing Table Destination Network 192 168 1 0 192 168 5 0 Parameter Destination Destination Route Route Routing Mask VLAN Next Hop Type Protocol Tag Aging Metric 255 255 2550 1 192 168 1 201 Direct Local 1 255 255 255 0 il 192 168 1 150 Indirect Mgmt 1 Description A destination network subnet or host Network Destination Mask VLAN Next Hop Type Protocol Route Tag Route Aging Routing Metric WGS3 2620 User s Manual The subnet mask that specifies the bits to match A routing entry will be used for a packet if the bits in the address set by the destination mask match the Destination Network The VLAN within which the gateway or destination address resides The IP address of the router at the next hop The IP route type for the destination network This switch supports the following types Direct A directly connected subnetwork Indirect A remote IP subnetwork or host address Myself A switch IP address on a specific
134. most modems which use a 25 pin port you will have to provide an RS232 cable with a 9 pin connector on one end and a 25 pin connector on the other end Set the modem at the switch s site to force auto answer mode The following is a sample initialization string ATQ1S0 1 amp D0 amp K0 amp W as defined below Q1 Inhibit result codes to DTE S0 1 Auto answer on first ring DO Don t care DTR KO Disables DTE DCE flow control W Write command to modem memory 3 2 2 2 Configuring the Remote Site At the remote site connect the PC s COM port COM 1 4 to the modem s serial port Set terminal emulation type to VT100 specify the port used by your PC i e COM 1 4 and then set communications to 8 data bits 1 stop bit no parity 19200 bps and no flow control 3 2 3 In Band Connections Prior to accessing the switch s on board agent via a network connection you must first configure it with a valid IP address subnet mask and default gateway for Layer 2 mode using an out of band connection or the BOOTP protocol After configuring the switch s IP parameters you can access the on board configuration program from anywhere within the attached network The on board configuration program can be accessed using Telnet from any computer attached to the network The switch can also be managed by any computer using a Web browser Internet Explorer 4 0 or above or Netscape Navigator 4 0 or above or from a network computer using network m
135. munication mode and VLAN assignments ll the ports in a trunk have to be treated as a whole when moved from to added to or deleted from a VLAN Elhe Spanning Tree Algorithm will treat all the ports in a trunk as a whole nable the trunk prior to connecting any cable between the switches to avoid creating a loop o WGS3 2620 User s Manual 123 Use the Trunk Configuration screen to set up port trunks as shown below Trunking List Parameter Description Trunk List The port groups currently configured as trunks New Setting The port groups that can still be configured as trunks To add a trunk highlight a port group in the New Setting list and press Add To delete a trunk highlight a port group in the Trunk List and press Delete Before disconnecting a port trunk take the following steps Before removing a port trunk via the configuration menu you must disable all the ports in the trunk or remove all the network cables Otherwise a loop may be created Elo disable a single link within a port trunk you should first remove the network cable and then disable both ends of the link via the configuration menu This allows the traffic passing across that link to be automatically distributed to the other links in the trunk without losing any significant amount of traffic WGS3 2620 User s Manual 124 5 7 1 4 Static Unicast Address Table The Static Unicast Address Table can be used to assign the MAC
136. n full duplex or half duplex Mirror Port Configuration Sets the source and target ports for mirroring Port Trunking Configuration Specifies ports to group into aggregate trunks Static Unicast Address Used to manually configure host MAC addresses in the Configuration unicast table Static Multicast Address Used to manually configure host MAC addresses in the Configuration multicast table WGS3 2620 User s Manual 35 4 5 2 1 Configuring Port Parameters Use the Port Configuration menu to display or set communication parameters for any port on the switch including administrative status auto negotiation default communication speed and duplex mode as well as flow control in use Layer 2 Menu Port Configuration Administrative status for port 1 Port 1 12 Default Current Flow Control Off Off Off lt Cancel gt lt Prev Page gt lt Next Page gt READ SELECT Use lt TAB gt or arrow keys to move lt Space gt to scroll options Parameter Link Status Admin Status Enabled Auto Enabled Negotiate Default Type 10HDX Current Type Flow Control Off Jack Type RJ 45 WGS3 2620 User s Manual Default Description Indicates if the port has a valid connection to an external device Allows you to disable a port due to abnormal behavior e g excessive collisions and then re enable it after the problem has been resolved You may also disable a port for security reasons Enables or disables aut
137. n to the switch and that the port you are using has not been disabled e Check network cabling between the management station and the switch e lf you cannot connect using Telnet there may already be four active sessions Try connecting again at a later time Can t access the e Be sure you have set the terminal emulator program to on board VT100 compatible 8 data bits 1 stop bit no parity and configuration program 19200 bps via a serial port e Check that the null modem serial cable conforms to the connection pin out connections provided in Appendix B Forgot or lost the e Reinstall the switch firmware as described on the next password page Otherwise contact Technical Support for help WGS3 2620 User s Manual 177 A 2 Upgrading Firmware via the Serial Port You can upgrade system firmware by connecting your computer to the serial port on the switch and using a console interface package that supports the XModem protocol See 3 2 Required Connections 1 Restart the system by using the Restart System command or by pulling out the power cord to reset the power waiting five seconds and plugging it back in POST Version V2 55 A03 8 18 2000 Power On Self Test POST Int Loopback Testing SCC2 UART Channel PASS Testing the System SDRAM PASS Int Loopback Testing ____ UART Channel PASS Int Loopback Testing ____ UART Channel PASS CPU Selb TESE 5 55 34 0c8 6 seein
138. nd lead on the triple power plug to a valid earth ground line to prevent electrical hazards CE Mark Warning In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures Disclaimer The publisher assumes no responsibility for errors that may appear in this document nor does it make any commitment to update information it contains All brands and product names mentioned are trademarks or registered trademarks of their respective companies Trademarks Copyright c PLANET Technology Corp 2001 PLANET is a registered trademark of PLANET Technology Corp All other trademarks belong to their respective owners Contents subject to revision without prior notice Revision User s manual for PLANET 24 2G Layer 3 Fast Gigabit Ethernet Switch Model WGS3 2620 Rev 1 0 November 2001 Part No EMQ WG26V 1 WGS3 2620 User s Manual 3 TABLE OF CONTENTS Chapter UA IMMORUC HOM castes syed ceva ncn centce setae ines aesee ds een ota dec vane EE EEEE rE ESEE 1 Chapter 2 Installing the S wie ig css ces ceaccasiscus nn a ee a E E Eae 3 2 l P kage Contents ire haaa a tna hen e E tn E cata ENSS 3 2 2 Description of Hardware ssseseseeeeeesssssssesreereesssssssserrereeessssssserrrreeesssss 3 2 3 Mo ntine the WHEE tare r eea aval E E E N R 4 2 3 1 Mounting Switches in a Rack sssseeesesesssssssesereesssssssserrreresessssssseee 4 2 4 Connecting the Switch Sy Stems
139. ng Port receives STA configuration messages but does not forward packets Listening Port will leave blocking state due to a topology change starts transmitting configuration messages but does not yet forward packets Learning Port has transmitted configuration messages for an interval set by the Forward Delay parameter without receiving contradictory information Port address table is cleared and the port begins learning addresses Forwarding The port forwards packets and continues the learning addresses The rules defining port status are e A port on a network segment with no other STA compliant bridging device is always forwarding e If two ports of a switch are connected to the same segment and there is no other STA device attached to this segment the port with the smaller ID forwards packets and the other is blocked e All ports are blocked when the switch is booted then some of them change state to listening to learning and then to forwarding The cost for a packet to travel from this port to the root in the current Spanning Tree configuration The slower the media the higher the cost The priority and MAC address of the device through which this port must communicate to reach the root of the Spanning Tree DesignatedP The priority and number of the port on the designated bridging device ort ID through which this switch must communicate with the root of the Spanning Tree WGS3 2620 User s Manual 84 4 6
140. ng and then to forwarding Designated The cost for a packet to travel from this port to the root in the current Cost Spanning Tree configuration The slower the media the higher the cost Designated The priority and MAC address of the device through which this port must Bridge ID communicate to reach the root of the Spanning Tree Designated The priority and number of the port on the designated bridging device Port ID through which this switch must communicate with the root of the Spanning Tree WGS3 2620 User s Manual 151 5 8 4 Displaying VLAN Information These menus display information on the ports that have been automatically learned via GVRP and all those ports that have been configured by dynamic or static means to forward VLAN traffic Menu Description VLAN Dynamic Shows the ports that have been automatically learned via GVRP Registration Information VLAN Forwarding Shows all those ports that have been configured by either dynamic Information or static means to forward VLAN traffic 5 8 4 1 VLAN Dynamic Registration Information This table shows the ports that have been automatically learned via GVRP VLAN Dynamic Registration Information VLAN Port Members 1 3 2 5 8 4 2 VLAN Forwarding Information Shows all those ports that have been configured by either dynamic or static means to forward VLAN traffic VLAN Forwarding Information VLAN Type Port Members 1 Static 1234567891011 1213 1415 1617 18 19 20 21 2
141. ng for Layer 2 mode or a common PVID for multilayer mode When operating the switch in Layer 2 mode ports assigned to a large VLAN group that crosses several switches must use VLAN tagging But when operating in multilayer mode this switch does not currently support tagging so you should set the PVID to the same value at both ends of the link if the device you are attaching to is VLAN aware and configure an IP interface for this VLAN if you need to connect it to other groups This limitation will be removed for future firmware versions 4 This control does not affect VLAN independent BPDU frames such as GVRP or STP However they do affect VLAN dependent BPDU frames such as GMRP WGS3 2620 User s Manual 132 5 7 3 2 VLAN Table Configuration Use this screen to create a new VLAN or modify the settings for an existing VLAN VLAN Table Configuration VLAN 12345 6 7 8 1 SiISIS SISIS ISIS 2 S NNWNWNWNWNWNWN 3 NiIR X IN N IN NIW vip NXRS5S Lea eee i ei ee cocce W7eocc co gs OC o O10 OC O74 Oc oe Oy C CO Ca Oc oc Oesc OC Oa Add Save Delete Cancel ESS Parameter VLAN Port Delete Description N Normal X Forbidden S Static R Reg Fixed 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 SISISIS ISIS SISISISISIS SISISISIS S Z NININININ NININININ NINININ IN NININ Z NINININ IN IN INININ IN N NININ IN N N N S NXR5 NXR5 NXR5 NXR5 OO Fea egeeseso Ss eee 5 ee 8 e o oo o o o ei 9 ee elk e
142. nterconnection devices and any PC accessing the agent module must have an IP address Valid IP addresses consist of four numbers of 0 to 255 and separated by periods Anything outside of this format will not be accepted by the configuration program Subnet mask of the switch This mask identifies the host address bits used for routing to specific subnets Gateway used to pass trap messages from the system s agent to the management station Note that the gateway must be defined when operating at Layer 2 if the management station is located in a different IP segment Specifies whether IP functionality is enabled via manual configuration or set by Boot Protocol BOOTP Options include USER CONFIG IP functionality is enabled based on the default or user specified IP Configuration This is the default setting BOOTP Get IP IP is enabled but will not function until a BOOTP reply has been received BOOTP requests will be periodically broadcasted by the switch in an effort to learn its IP address BOOTP values can include the IP address default gateway and subnet mask The VLAN used for management access when Mgmt VLAN is selected See the next item Specifies which VLAN have access right to its management interface Options include All VLANs All VLANs have access right to its management interface This is the default setting Mgmt VLAN Only the specified VLAN have access right to its management interface WGS3 2
143. nually configured If the switch does not contain a default route any packet that does not match an entry in the routing table will be dropped To manually configure a default route enter the next hop in the following table Default Route VLAN 0 Next Hop Address f10 1 10 254 Metric fi Apply Delete Cancel Parameter Description VLAN The VLAN which has the IP interface to the default router Next Hop The IP address of the default router Address Metric The number of hops required to reach the default router WGS3 2620 User s Manual 143 5 7 6 Configuring Security Filters You can use the Security menu to filter MAC and IP addresses Parameter Description MAC Filtering Specifies the source or destination MAC address for any traffic to be Configuration filtered from the switch IP Filtering Specifies the source or destination IP address for any traffic to be Configuration filtered from the switch This menu item is only displayed for multilayer mode 5 7 6 1 Configuring MAC Address Filters Any node that presents a security risk or is functioning improperly can be filtered from this switch You can drop all the traffic from a host device based on a specified MAC address Traffic with either a source or destination address listed in the Security Filtering Configuration table will be filtered MAC Filtering Configuration MAC Address Edit 00304F 012345 F MAC Address Add Delete Cancel Note To add a MAC address to
144. o confine this traffic to the originating group and provide a much cleaner network environment Instead of using physically separate subnets which are linked by traditionally slow routers this switch creates segregated broadcast domains based on easily configurable VLANs and then links these VLANs as required with wire speed routing An IEEE 802 1Q VLAN is a group of ports that can be located anywhere in the network but communicate as though they belong to the same physical segment VLANs help to simplify network management by allowing you to move devices to a new VLAN without having to change any physical connections VLANs can be easily organized to reflect departmental groups such as Marketing or R amp D usage groups Such as e mail or multicast groups used for multimedia applications such as video conferencing VLANs provide greater network efficiency by reducing broadcast traffic and allow you to make network changes without having to update IP addresses or IP subnets VLANs inherently provide a high level of network security since traffic must pass through a configured Layer 3 link to reach a different VLAN This switch supports the following VLAN features e Up to 256 VLANs based on the IEEE 802 1Q standard e Distributed VLAN learning across multiple switches using explicit or implicit tagging and GVRP protocol e Port overlapping allowing a port to participate in multiple VLANs Not supported for multilayer mode e End stati
145. o includes the IGMP registration table the multicast forwarding cache and DVMRP routing information 5 8 6 1 Displaying Subnet Information You can display a list of all the IP interfaces configured on this switch This table includes the gateway address corresponding VLAN and member ports that use this address Subnet Information IP Address Subnet Mask VLAN Port Members 192 168 1 201 255 255 255 0 1 12345678910111213141516 17 18 19 20 21 22 23 2425 26 Parameter Description IP Address The address for an IP interface on this switch Subnet Mask A template that identifies the address bits in the host address used for routing to specific subnets Each bit that corresponds to a 1 is part of the network subnet number each bit that corresponds to 0 is part of the host number VLAN The VLAN group associated with this IP interface Port Members The ports that can be reached through this IP interface 5 8 6 2 ARP Table Address Resolution Protocol ARP defines a method for extracting a host s Ethernet address from its Internet address This table shows the IP to MAC address cache discovered via ARP ARP Table IP Address Mac Address VLAN Port 192 168 1 50 123456 123456 1 0 192 168 1 101 00304F 0B3CB8 1 0 192 168 1 201 00304F 18E640 1 0 203 70 249 51 00304F 0B3E64 1 0 Parameter Description IP Address IP addresses for which ARP has resolved the physical address through a broadcast message MAC Address MAC address that
146. o negotiation for port speed duplex mode and flow control If auto negotiation is disabled the port will be set to the indicated speed and duplex mode Indicates the current speed and duplex mode Used to enable or disable flow control Flow control can eliminate frame loss by blocking traffic from end stations or segments connected directly to the switch when its buffers fill When enabled back pressure is used for half duplex and IEEE 802 3x for full duplex Note that flow control should not be used if a port is connected to a hub Shows the jack type for each port 36 4 5 2 2 Using a Mirror Port for Analysis You can mirror traffic from any source port to a target port for real time analysis You can then attach a logic analyzer or RMON probe to the target port and study the traffic crossing the source port in a completely unobtrusive manner When mirroring port traffic note that the target port must be included in the same VLAN as the source port See Configuring Virtual LANs You can use the Port Mirror Configuration screen to mirror one or more ports to the monitor port as shown below Layer 2 Menu Mirror Port Configuration Port Mirroring ENABLED Transmission Path Mirrored Ports Monitor Port Tx Monitor Port Rx Confirm current screen setting Use lt TAB gt or arrow keys to move lt Enter gt to select Parameter Description Enable Port Mirror Enables or disables the mirror function Mirro
147. o root port then this switch has been accepted as the root device of the Spanning Tree network The number of times the Spanning Tree has been reconfigured The time since the Spanning Tree was last reconfigured WGS3 2620 User s Manual 82 4 6 3 2 Displaying the Current Spanning Tree Port information The parameters shown in the following figure and table are for spanning tree port Information Bridge Menu Spanning Tree Port Information Port 1 12 Designated Designated Designated FORWARD ING DISABLED DISABLED DISABLED DISABLED DISABLED DISABLED DISABLED DISABLED DISABLED DISABLED DISABLED 32768 0010B5489400 32768 0010B5489400 32768 0010B5489400 32768 0010B5489400 32768 0010B5489400 32768 0010B5489400 32768 0010B5489400 32768 0010B5489400 32768 0010B5489400 32768 0010B5489400 32768 0010B5489400 32768 0010B5489400 1 2 3 4 5 6 7 8 9 o j ji eooeoeeecoeooooceo amp m NS lt Prev Page gt lt Hext Page gt Return to previous panel Use lt TAB gt or arrow keys to move lt Enter gt to select WGS3 2620 User s Manual 83 Parameter Type Status Designated Cost Designated Bridge ID Description Shows port type as 100TX 10BASE T 100BASE TX 1000T 1000BASE T Displays current state of this port within the Spanning Tree Disabled No link has been established on this port Otherwise the port has been disabled by the user or has failed diagnostics Blocki
148. on 0 eeeeeeeeeeceeceeeeeeeeeeeeetneeeeees WGS3 2620 User s Manual 6 5 8 4 1 VLAN Dynamic Registration Information 00 152 5 8 4 2 VLAN Forwarding Information ccsssececeeeeeeeeeeeeees 152 5 8 5 IP Multicast Registration Table cc ececcessseccecceeeeeeeeestneeeeees 152 3 8 0 IP Men Renee a en ee een tenet ee Ren ee ee ren ee ETE 153 5 8 6 1 Displaying Subnet Information cceseeceeeceeeeeeeeeeeeees 153 5 8 6 2 ARP Table eae eae ceua ted etn we satuasesaten vasa tegen EEEE EEk 153 35 8 6 3 OUT AS Sancin ona tastes ER 154 5 8 6 4 Multicast Tl ADI Ste axe aieesacttcenssteieastseiwpaediieeusastieeniasiteaatoas 155 59 RESCUE CAS a V SECM toeis bycr ee ay detaches els vider eats A ts sia auitatee learned 157 Chapter 6 Advanced Topless nehir i E E mcs Be den 158 6 Layer ZW ICIS eerren nienean een EE EESO ENE Ee ie aa 158 Gol UGICaStS WUCHING s Grate aa n E E E 159 6 1 2 Militias tS witching 5 055 cae n a a ie haces eta ees hace late 160 6 1 3 Spanning Tree Algorithm viscssscesctedecsosateanushenta srocateavealatuennes cues 160 6 2 ANCES WICC IIIS oorsee acniena ameter ena dnnen E E E 162 6 2 1 Initial Configuration da eccrncrevcaesacsecaceces uareseto nen ecesmiavcusnceeees 162 6 2 2 TP SS WA nS nnen ene a ed aia eulsse ted tna edema nad 163 6 2 3 Routing Path Management x scscssssascncicaavensarsantnceesronadareuiearonse 164 6 2 4 ICMP Router Discovery ssessss
149. on the entry age and the time left before the entry is aged out Displays all active multicast groups including the multicast source address the upstream neighbor the multicast routing protocol and the entry age Displays the source address for each known multicast service the upstream neighbor the IP interface each entry appears on the routing metric and the entry age Displays all the neighbor routers accessible through each IP interface including the entry age the time left before the entry is aged out the protocol version and the number of routing updates received from each neighboring router 95 4 6 6 4 1 Displaying IGMP Registration Table The switch provides a local registry of active multicast groups for each IP interface including the age and expiration time for each entry Group Address Intf Reporter 234 7 6 99 1 10 1 10 19 37500 Page lt Apply gt Total 0 Pages lt OK gt lt Prev Page gt lt Hext Page gt The page number Use lt TAB gt or arrow keys to move other keys to make changes WGS3 2620 User s Manual 96 Parameter Group Address Intf Reporter Up Time Expire V1 Timer Description An IP multicast group address with subscribers directly attached or downstream from this switch The IP interface on this switch that has received traffic directed to the IP multicast group address See4 6 6 1 Displaying Subnet Information IP address of the source of the last membership report recei
150. on MAC address is checked in the address database to see which port leads to this destination If the destination address belongs to the incoming port the frame is dropped or filtered If the destination port is found on another port the frame is forwarded to that port and queued for output But if the destination address is not found in the address database the frame is sent to one or more output ports based on the rules for handling tagged or untagged VLAN frames If the source MAC address of the frame was not found in the address database it is recorded along with the incoming port number where it entered the switch This information is then used to make later decisions for frame forwarding During switching the switch performs multiple steps including e VLAN Classification e Learning e Filtering e Forwarding e Aging The following sections provide additional information about the tasks the switch performs during unicast and multicast switching WGS3 2620 User s Manual 158 6 1 1 Unicast Switching This section describes VLAN classification learning filtering and forwarding for unicast switching e VLAN Classification When the switch receives a frame it classifies the frame in one of two ways If the frame is untagged the switch classifies the frame into the default VLAN for the incoming port If the frame is tagged the switch uses the tagged VLAN ID to identify the broadcast domain of the frame e Learning
151. on of the devices attached to the switch However due to the spanning tree learning process the new attached device may takes about 30 seconds to be able to connect the other devices This period can be shortened by adjusting the spanning tree configuration 2 6 Verifying Port Status Check each connection by viewing the port indicators shown in the following table o ee racon O m One of the fans is failed and standby fan is running The internal temperature is equal to or higher than 60 degree C 10BaseT 100BaseTX Ports connection Mode coor __faleonoamvsontenoe WGS3 2620 User s Manual 6 1000BaseT Ports woo Port has established a valid network connection raffic is passing through the port 1 There are two 4 inch fans and one 2 inch fan in the unit Normally one of the 4 inch fans and 2 inch fan is running Another 4 inch fan is standby and not working Once one of the two running fans is failed the standby fan will be drove to run and the Fan LED ill light on 2 When the internal temperature is equal to or higher than 60 degree C the standby fan will be drove to run and the Temp LED will light on Once the temperature is equal to or higher than 70 degree C the buzzer will sound You can press the buzzer On Off button to turn off the buzzer 3 Use the Mode button to select LED display mode 2 7 Verifying System Operation Verify that all attached devices have a valid connection The switch monito
152. ons can belong to multiple VLANs e Passing traffic between VLAN aware and VLAN unaware devices e Priority tagging WGS3 2620 User s Manual 167 6 3 1 Assigning Ports to VLANs Before enabling VLANs for the switch you must first assign each port to the VLAN group s it will participate in By default all ports are assigned to VLAN 1 as untagged ports Add a port as a tagged port that is a port attached to a VLAN aware device if you want it to carry traffic for one or more VLANs and the device at the other end of the link also supports VLANs Then assign the port at the other end of the link to the same VLAN s However if you want a port on this switch to participate in one or more VLANs but the device at the other end of the link does not support VLANs then you must add this port as an untagged port that is a port attached to a VLAN unaware device 6 3 1 1 VLAN Classification When the switch receives a frame it classifies the frame in one of two ways If the frame is untagged the switch assigns the frame to an associated VLAN based on the PVID of the receiving port But if the frame is tagged the switch uses the tagged VLAN ID to identify the port broadcast domain of the frame 6 3 1 2 Port Overlapping Port overlapping can be used to allow access to commonly shared network resources among different VLAN groups such as file servers or printers Not supported for multilayer mode Note that if you implement VLANs which do not
153. ontrol Shows the flow control type in use Flow control can eliminate frame Status loss by blocking traffic from end stations connected directly to the switch VLAN ID The VLAN ID assigned to untagged frames received on this port Use the PVID to assign ports to the same untagged VLAN WGS3 2620 User s Manual 106 5 3 2 Configuring the Serial Port If you are having difficulties making an out of band console connection to the serial port on the switch you can display or modify the current settings for the serial port through the Web agent Click on the serial port icon in the switch image to display or configure these settings as shown below Serial Port Configuration Parameter Management Mode Baud Rate Data Bits Stop Bits Parity Time Out Auto Refresh Management Mode CONSOLE MODE Baud Rate 19200 Data Bits 8 gt Stop Bits Ml Parity None Time Out P minute s Auto Refresh 10 second s Cancel Aprly Default Console Mode 19200 8 bits 1 bit none 0 minutes 10 second WGS3 2620 User s Manual Description Indicates that the port settings are for direct console connection The rate at which data is sent between devices Options 9600 19200 and 38400 baud Sets the data bits of the RS 232 port Options 7 8 Sets the stop bits of the RS 232 port Options 1 2 Sets the parity of the RS 232 port Options none odd even If no input is received f
154. overlap but still need to communicate you can connect them by setting this switch to multilayer mode and assigning an IP interface address to the different VLANs See Connecting VLAN Groups 6 3 1 3 Port based VLANs Port based or static VLANs are manually tied to specific ports The switch s forwarding decision is based on the destination MAC address and its associated port Therefore to make valid forwarding or flooding decisions the switch must learn the relationship of the MAC address to its related port and thus to the VLAN at run time However when GVRP is enabled this process can be fully automated 6 3 1 4 Automatic VLAN Registration GVRP GVRP defines a system whereby the switch can automatically learn the VLANs each endstation should be assigned to If an endstation or its network adapter supports the IEEE 802 1Q VLAN protocol it can be configured to broadcast a message to your network indicating the VLAN groups it wants to join When this switch receives these messages it will automatically place the receiving port in the specified VLANs and then forward the message to all other ports When the message arrives at another switch that supports GVRP it will also place the receiving port in the specified VLANs and pass the message on to all other ports VLAN requirements are propagated in this way throughout the network This WGS3 2620 User s Manual 168 allows GVRP compliant devices to be automatically confi
155. port Auto MDI You can use straight through or crossover twisted pair cable to connect any RJ 45 port on the switch to any device that uses a standard network interface such as a workstation or server or to a network interconnection device such as a bridge or router WGS3 2620 User s Manual 4 1 Prepare the network devices you wish to network Make sure you have installed 10BASE T 100BASE TX or 1000BASE T network interface cards for connecting to the switch s RJ 45 ports 2 Prepare straight through shielded or unshielded twisted pair cables with RJ 45 plugs at both ends Use 100 ohm Category 3 4 or 5 cable for standard 10Mbps Ethernet connections 100 ohm Category 5 cable for 100Mbps Fast Ethernet connections or Category 5e cable for 1000Mbps Gigabit Ethernet connections 3 Connect one end of the cable to the RJ 45 port of the network interface card and the other end to any available RJ 45 port on the switch When inserting an RJ 45 plug be sure the tab on the plug clicks into position to ensure that it is properly seated Using the switch in a stand alone configuration you can network up to 26 end nodes Do not plug a phone jack connector into any RJ 45 port BThis may damage the switch Instead use only twisted pair cables with RJ 45 connectors that conform with FCC standards NOTES 1 Make sure each twisted pair cable does not exceed 100 meters 328 feet 2 We advise using Category 5e cable for all network connections
156. ps using GMRP Note that GMRP must be enabled for the switch before this setting can take effect IGMP and IGMP Snooping also provide multicast filtering For multilayer mode the full IGMP protocol set is automatically enabled disabled along with DVMRP See 6 4 2 IGMP Protocol Configuring DVMRP and 5 7 4 Configuring IGMP Snooping If enabled incoming frames for VLANs which do not include this ingress port in their member set will be discarded at the ingress port 2 This switch supports Quality of Service QoS by using two priority queues with Weighted Fair Queuing for each port Inbound frames that do not have VLAN tags are tagged with the input ports default ingress user priorit y and then placed in the appropriate priority queue at the output port The default priority for all ingress ports is zero Therefore any inbound frames that do not have priority tags will be placed in the low priority queue of the output WGS3 2620 User s Manual 131 port Note that if the output port is an untagged member of the associated VLAN these frames are stripped of all VLAN tags prior to transmission 3 lf you want to create a small port based VLAN for just one or two switches you can assign ports to the same untagged VLAN and use a separate connection where a VLAN crosses the switches However to participate in a VLAN group that extends beyond this switch we recommend using the VLAN ID for that group using VLAN taggi
157. r troubleshooting with a logic analyzer or RMON probe This allows data on the target port to be studied unobtrusively Port Trunk Defines a network link aggregation and trunking method which specifies how to create a single high speed logical link that combines several lower speed physical links Remote Monitoring RMON RMON provides comprehensive network monitoring capabilities It eliminates the polling required in standard SNMP and can set alarms on a variety of traffic conditions including specific error types Routing Information Protocol RIP The RIP protocol attempts to find the shortest route to another device by minimizing the distance vector or hop count which serves as a rough estimate of transmission cost RIP 2 is a compatible upgrade to RIP It adds useful capabilities for subnet routing authentication and multicast transmissions Simple Network Management Protocol SNMP The application protocol offering network management services in the Internet suite of protocols Serial Line Internet Protocol SLIP Serial Line Internet Protocol a standard protocol for point to point connections using serial lines Spanning Tree Protocol STP A technology that checks your network for any loops A loop can often occur in complicated or back up linked network systems Spanning tree detects and directs data along the shortest path maximizing the performance and efficiency of the network Telnet Defines a remote communi
158. r the selected port In this mode ports skip the Blocked Listening and Learning states and proceed straight to Forwarding Since end nodes cannot cause forwarding loops they can pass through the Spanning Tree state changes more quickly than allowed by standard convergence time Fast Forwarding can achieve quicker convergence for end node workstations and servers and also overcome other STA related timeout problems Remember that Fast Forwarding should only be enabled for ports connected to an end node device WGS3 2620 User s Manual 129 5 7 3 Configuring Virtual LANs You can use the VLAN configuration menu to assign any port on the switch to any of up to 256 LAN groups In conventional networks with routers broadcast traffic is split up into separate domains Switches do not inherently support broadcast domains This can lead to broadcast storms in large networks that handle traffic such as IPX or NetBEUI By using IEEE 802 1Q compliant VLANs you can organize any group of network nodes into separate broadcast domains thus confining broadcast traffic to the originating group This also provides a more secure and cleaner network environment For more information on how to use VLANs see 6 3 Virtual LANs The VLAN configuration screens are described in the following sections 5 7 3 1 VLAN Port Configuration You can use the VLAN Port Configuration screen to configure GARP the default VLAN identifier default port priority
159. rect the interference by one or more of the following measures 1 Reorient the receiving radio or TV antenna where this may be done safely 2 To the extent possible relocate the radio TV or other receiver away from the Switch 3 Plug the Ethernet Switch into a different power outlet so that the Switch and the receiver are on different branch circuits If necessary you should consult the place of purchase or an experienced radio television technician for additional suggestions Caution Do not use a RJ 11 telephone cable to connect your network equipment Important Safety Instructions 1 Read all of these instructions 2 Save these instructions for later use 3 Follow all warnings and instructions marked on the product 4 Unplug this product from the wall outlet before cleaning Do not use liquid cleaners or aerosol cleaners Use a damp cloth for cleaning Do not use this product near water 6 Do not place this product on an unstable cart or stand The product may fall causing serious damage to the product 7 The air vent should never be blocked by placing the product on a bed sofa rug or other similar surface This product should never be placed near or over a radiator or heat register This product should not be placed in a built in installation unless proper ventilation is provided 8 This product should be operated from the type of power source indicated on the marking label If you are not sure of the type of power
160. red Ports Tx Rx The port whose transmitted or received traffic will be mirrored Press Add to specify mirrored ports Monitor Port The port that will duplicate the transmitted or received traffic appearing on the mirrored port Note You can mirror multiple ports to a single port to view traffic However note that some packets may be dropped for moderate to heavy loading WGS3 2620 User s Manual 37 4 5 2 3 Configuring Port Trunks Ports can be combined into an aggregate link to increase the bandwidth of a network connection or ensure fault recovery You can configure trunks between any two switches The RJ 45 ports on this switch can be grouped into a trunk consisting of two four or eight ports creating an aggregate bandwidth up to 400 800 1600 or 4000 Mbps when operating at full duplex Besides balancing the load across each port in the trunk the additional ports provide redundancy by taking over the load if another port in the trunk should fail However before making any physical connections between devices use the Port Trunking Configuration menu to specify the trunk on the devices at both ends When using a port trunk remember that e The ports used in a trunk must all be RJ 45 The ports that can be assigned to the same trunk are listed below Two ports as a trunk lt lt 13 01 gt gt lt lt 14 02 gt gt lt lt 15 03 gt gt lt lt 16 04 gt gt lt lt 17 05 gt gt lt lt 18 06 gt gt lt lt 19 07 gt gt lt lt 20
161. reesssssssserrereesssssssseee 38 4 5 2 4 Configuring the Static Unicast Address Table 0 40 WGS3 2620 User s Manual 4 4 5 2 5 Configuring the Static Multicast Address Table 41 4 5 3 Using the Bridge Ment ixc icsaxanateacstanechomedete Guna nencenadernontiavravenstee 42 4 5 3 1 Configuring Global Bridge Settings 0 ceeeeeeeeeeeeeeeeeeees 43 4 5 3 2 Configuring STA for Ports a ciccreia caweiatcneteradcnercidtieeuadenvers 45 4 5 4 Configuring Virtual LANS c ssccccccceceeeeseeeenneeececeeeeeseneeeeaes 47 4 5 4 1 VLAN Port Configuration ccccscscccccceeeeeeeeeesnneeeeeeeeees 47 4 5 4 2 VLAN Table Configuration cccccccccccceeeeeeeesenneeeeeeeeeeees 50 4 5 5 Configuring IGMP Snooping ccscccccccceeeeeeeeeenneeeeeeceeeeeeeeeeeaes 51 45 6 Contig urns IP Sein G8 a cn csi ey datataa E E E eter dataaks 53 4 5 6 1 Subnet Configuration ssssssssseeseessssssssseesseessssssseereereesssss 54 4 5 6 2 Protocol Configuration ssssseeeeeeesssssssseresseesssssssserrereessss 61 4 5 6 3 Static ARP Configurations lt scccsscscaaensd access seseeconstnesnen ccseeveee 65 4 5 6 4 Static Route Configuration cccccccccccceeeeeseneeeceeeeeeeeeeeees 66 4 5 6 5 Configuring the Default Route eee eeeesseeeeeeeeeeees 68 43 Security VOT Ubaze ena dedinreicinas a caratasse e eatin aed eaas tear ea a natines E 69 4 5 7 1 Configuring MA
162. request for a remote network and ARP Proxy is enabled it determines if it has the best route to the remote network and then answers the ARP request by sending its own MAC address to the requesting node That WGS3 2620 User s Manual 164 node then sends traffic to the switch which in turn uses its own routing table to forward the traffic to the remote destination End stations that require Proxy ARP must view the entire network as a single network These nodes must therefore use a smaller subnet mask than that used by the switch or other relevant network devices Note that extensive use of Proxy ARP can adversely affect the performance of the switch because it may lead to increased ARP traffic and increased search time for larger ARP address tables 6 2 6 Routing Protocols The switch supports both static and dynamic routing e Static routing requires routing information to be stored in the switch either manually or when a connection is set up by an application outside the switch e Dynamic routing uses a routing protocol to exchange routing information calculate routing tables and respond to changes in the status or loading of the network Dynamic routing involves the determination and updating of all the routing information required for packet forwarding e Handling routing protocols e Updating the routing table e Updating the Layer 3 switc hing database The switch supports RIP and RIP 2 dynamic routing protocols 6 2 6 1 RIP and
163. rmation c ccccccceeeeeeeeeeees 16 4 4 Management Setup VICI ii 55 carter ah Gre ara aaa nainarea ates 17 4 4 1 Changing the Network Configuration cceeseececceceeeeeeeeeeeees 18 4 4 1 1 IP Configuration Layer 2 Mode cceceeeeseeecceeeeeeeeeeees 19 4 4 1 2 IP Connectivity Test Ping sicssscoseencenevassvswevenmnnvsorenanevenmeds 21 4 4 1 3 HTTP Configuration sseeeseeeeeeesssssssssrerreessssssssrrreresssssssssee 22 4 4 2 Configuring the Serial Port ssseesseeeesesesssssssserereesssssssserrereesssss 23 4 4 3 Assigning SNMP ParameterS c cccccccceeeeeseenneeceeeeeeeeeeeeeeetneees 25 4 4 3 1 Configuring Community Names sssseseeeseesssssserrereesssssssseee 26 4 4 3 2 Configuring IP Trap Managetrs eeeeeeeesseeeceeeeeeeeeeeeees 27 4 4 4 User Login Configuration cc ssccccccceceeeeeeeeenneeeceeeeeeeeeeeeeaes 28 4 4 5 Downloading System Software ccceeeeseseeneeeeeeceeeeeeeeeestneeees 30 4 4 6 Saving or Restoring the System Configuration ceeeee 31 4S Device Control M nta eaaa AEE EAEE 33 4 5 1 Setting the System Operation Mode ceeeeeessseececeeeeeeeeeeeeeeees 34 AD Layer 2 Men e E ESk 35 4 5 2 1 Configuring Port Parameters ssseseseeeeeeesssssserrereesssssssseee 36 4 5 2 2 Using a Mirror Port for Analysis eseseeeeeeesssssseeeereesssssssseee 37 4 5 2 3 Configuring Port Trunks sseeeeeessssesesee
164. rom the attached device after this interval the current session is automatically closed Range 0 100 minutes where 0 indicates disabled Sets the interval before a console session will auto refresh the console information such as Spanning Tree Information Port Configuration Port Statistics and RMON Statistics Range 0 or 5 255 seconds where 0 indicates disabled 107 5 4 Main Menu Using the on board Web agent you can define system parameters manage and control the switch and all its ports or monitor network conditions The interface screen includes the menu tree on the left side and a list of commands beneath the image of the switch The following table briefly describes the selections available from this program Menu Description System Information Menu System Information Provides basic system description including contact information Switch Information Shows hardware firmware version numbers power status and expansion modules used in the switch Management Setup Menu Network Includes IP Configuration Ping facility and HTTP Web agent Configuration setup Serial Port Sets communication parameters for the serial port including baud Configuration rate console time out and screen data refresh interval SNMP Activates authentication failure traps and configures community Configuration access strings and trap managers User Configuration Sets the user names and passwords for system access
165. rotocol One possible reason for discarding such a packet could be to free up buffer space The number of inbound packets that contained errors preventing them from being deliverable to a higher layer protocol The number of alignment errors mis synchronized data packets The total number of octets transmitted out of the interface including framing characters The total number of packets that higher level protocols requested be transmitted to a subnetwork unicast address including those that were discarded or not sent The total number of packets that higher level protocols requested be transmitted to a non unicast that is a subnetwork broadcast or subnetwork multicast address including those that were discarded or not sent The number of outbound packets which were chosen to be discarded even though no errors had been detected to prevent their being transmitted One possible reason for discarding such a packet could be to free up buffer space The number of outbound packets that could not be transmitted because of errors Number of Ethernet Cyclic Redundancy Check errors detected by this device The number of successfully transmitted frames for which transmission is inhibited by exactly one collision A count of frames for which the first transmission attempt on a particular interface is delayed because the medium was busy The number of frames for which transmission failed due to excessive collisions The total number of even
166. rs the link status for each port If any device is properly connected to the switch and transmitting a link beat signal the Link indicator will light up for the corresponding port If the Link indicator fails to light when you connect a device to the switch check the following items e Be sure all network cables and connectors are properly attached to the connected device and the switch e See if your cable is functioning properly by using it for another port and attached device that displays valid indications when connected to the network e Be sure no twisted pair cable exceeds 100 meters 328 feet WGS3 2620 User s Manual 7 Chapter 3 Switch Management 3 1 Configuration Options For advanced management capability the on board management agent provides a menu driven system configuration program This program can be accessed by a direct or modem connection to the serial port on the rear panel out of band or by a Telnet connection over the network in band The management agent is based on SNMP Simple Network Management Protocol This SNMP agent permits the switch to be managed from any PC in the network using in band management software The management agent also includes an embedded HTTP Web agent This Web agent can be accessed using Microsoft Internet Explorer 4 0 or later from any computer attached to the network The system configuration program and the SNMP agent support management functions such as e Enable disable an
167. s VLAN gt pair in the MAC address table Once a pair is aged out the address table is modified WGS3 2620 User s Manual 159 6 1 2 Multicast Switching For multicast switching the switch checks whether the received frame is a Bridge Protocol Data Unit BPDU If a BPDU is received the switch forwards the frame for processing by the Spanning Tree Protocol Otherwise the switch performs the following processes e VLAN classification same as for unicast switching e Learning same as for unicast switching e Filtering after learning the switch checks the same filtering criteria used for unicast switching except that there is no destination MAC address to check e Forwarding the switch floods the received multicast frame to all ports within the VLAN excluding the source port At the same time the switch decides whether a VLAN tag needs to be added to or stripped from the frame depending on the VLAN tagged untagged configuration and VLAN ID for the output port e Aging same as for unicast switching 6 1 3 Spanning Tree Algorithm The Spanning Tree Algorithm that is the STA configuration algorithm as outlined in IEEE 802 1D can be used to detect and disable network loops and to provide link backup This allows the switch to interact with other bridging devices including STA compliant switches bridges or routers in your network to ensure that only one route exists between any two stations on the network If redundan
168. s broadcast to other routers on the network using RIPv1 RIP2 Broadcast Route information is broadcast to other routers on the network using RIPv2 RIP2 Multicast Route information is multicast to other routers on the network using RIPv2 Do Not Send The switch will passively monitor route information advertised by other routers attached to the network The routing protocol messages accepted on this port includes RIP1 RIP2 RIP1 RIP2 or Disabled i e none received A metric indicates the number of hops between the switch and the destination network The default metric is used for the default route in RIP updates originated on this interface A value of zero indicates that no default route should be originated in this case a default route via another router may be propagated Range 0 15 Propagates routes back to an interface port from which they have been acquired but sets the distance vector metrics to infinity This is a method of preventing routing information from looping back to the source Note that Split Horizon is also enabled on this switch for this purpose See 6 2 6 1 RIP and RIP 2 Dynamic Routing Protocols WGS3 2620 User s Manual 59 4 5 6 1 5 Configuring DVMRP Distance Vector Multicast Routing Protocol is used to route multicast traffic to nodes which have requested a specific multicast service via IGMP See 6 4 4 DVMRP Routing Protocol To configure DVMRP you must specif
169. s on the network using RIPv1 RIP2 Broadcast Route information is broadcast to other routers on the network using RIPv2 RIP2 Multicast Route information is multicast to other routers on the network using RIPv2 Do Not Send The switch will passively monitor route information advertised by other routers attached to the network Receive Type The routing protocol messages accepted on this port includes RIP1 RIP2 RIP1 RIP2 or Do Not Receive Default Metric A metric indicates the number of hops between the switch and the destination network The default metric is used for the defau It route in RIP updates originated on this interface A value of zero indicates that no default route should be originated in this case a default route via another router may be propagated Range 0 15 Poison Directs routes back to an interface port from which they have been Reverse acquired but sets the distance vector metrics to infinity This is a method of preventing routing information from looping back to the source Note that Split Horizon is also enabled on this switch for this purpose See 6 2 6 1 RIP and RIP 2 Dynamic Routing Protocols Configuring DVMRP Distance Vector Multicast Routing Protocol is used to route multicast traffic to nodes which have requested a specific multicast service via IGMP See 6 4 4 DVMRP Routing Protocol To configure DVMRP you must specify the routing metric probe interval and nei
170. s the router to which this switch will forward all traffic for unknown networks The default route can be learned from RIP protocol See 4 5 6 1 4 Configuring RIP or manually configured If the switch does not contain a default route any packet that does not match an entry in the routing table will be dropped To manually configure a default route enter the next hop in the following table Default Route Menu Next Hop Address Metric 2 lt Delete gt lt Cancel gt Enter Next Hop IP address Use lt TAB gt or arrow keys to move other keys to make changes Parameter Description VLAN The VLAN which has the IP interface to the default router Next Hop The IP address of the default router Address Metric The number of hops required to reach the default router WGS3 2620 User s Manual 68 4 5 7 Security Menu The Security menu contains options to filter specified MAC or IP addresses These menu options are described in the following sections Security Menu MAC Filtering Configuration Security Mode IP Filtering Configuration Config MAC filtering database Use lt TAB gt or arrow keys to move lt Enter gt to select Menu Description MAC Filtering Specifies the source or destination MAC address for any traffic to be Configuration filtered from the switch for security reasons IP Filtering Specifies the source or destination IP address for any traffic to be Configuration filtered from the swi
171. set is automatically enabled disabled along with DVMRP See 6 4 Multicast Filtering and 4 5 6 1 5 Configuring DVMRP 2 This item is only displayed for Layer 2 mode When IGMP is enabled for multilayer mode the switch will always serve as the querier if elected WGS3 2620 User s Manual 52 4 5 6 Configuring IP Settings If this switch is set to multilayer mode see 4 5 1 Setting the System Operation Mode the IP Menu will be displayed Use this menu to configure the IP subnets for each VLAN on your switch the unicast and multicast routing protocols static ARP entries static IP routes and the default IP Route Subnet Configuration Protocol Configuration Static ARP Configuration Static Route Default Route Display and change the subnet configuration lt TAB gt or arrow keys to move lt Enter gt to select Parameter Description Subnet Specifies the IP interface for VLANs configured on this switch Configuration including the subnet address and routing Protocols Protocol Configures ARP timeout enables Proxy ARP sets the preferred Configuration servers for BOOTP DHCP Relay as well as enabling configuring unicast and multicast protocols globally for this switch Static ARP Used to map an IP address to a specific physical MAC address Configuration Static Route Used to configure static routes to other IP networks subnetworks or hosts Default Route Defines the router to which t
172. source address for each known multicast service the Routing Table upstream neighbor the IP interface each entry appears on the routing metric and the entry age DVMRP Displays all the neighbor routers accessible through each IP interface Neighbor Table including the entry age the time left before the entry is aged out the protocol version and the number of routing updates received from each neighboring router Displaying IGMP Registration Table The switch provides a local registry of active multicast groups for each IP interface including the age and expiration time for each entry IGMP Registration Table Group Address Interface Reporter Up Time Expire Time Y1 Timer 224 1 1 1 1 192 168 1 19 27000 37500 0 Parameter Description Group An IP multicast group address with subscribers directly attached or Address downstream from this switch Interface The IP interface on this switch that has received traffic directed to the IP multicast group address See 5 8 6 1 Displaying Subnet Information Reporter The IP address of the source of the last membership report received for this IP Multicast group address on this interface If no membership report has been received this object has the value 0 0 0 0 Up Time The time elapsed since this entry was created Expire Time The time remaining before this entry will be aged out The default is 260 seconds V1 Timer The time remaining until the switch assumes that there are no longer any IG
173. ss Enter The following screen will display All the items displayed on this page are the same as that shown in the Routing Table except for Routing Metric which represents a relative measure of the path cost from this switch to the destination network Note that this metric depends on the specific routing protocol Detailed Routing Entry Destination Address 203 70 249 0 Destination Mask 255 255 255 0 VLAN ee Next Hop 203 70 249 118 Type Direct Protocol Local Routing Metric Return to previous panel Use lt Enter gt to select WGS3 2620 User s Manual 94 4 6 6 4 Multicast Table You can use this menu to display all the multicast groups currently active on this switch the IGMP registration table the multicast forwarding cache and DVMRP routing information Parameter IP Multicast Registration Table IGMP Registration Table Multicast Forwarding Cache Table DVMRP Routing Table DVMRP Neighbor Table WGS3 2620 User s Manual Multicast Table Menu IP Multicast Registration Table IGMP Cache Multicast Forwarding Cache Table DVMRP Routing Table DVMRP Neighbor Table Return to previous panel Use lt Enter gt to select Description Displays all active multicast groups including the multicast IP address and the corresponding VLANs See 4 6 5 IP Multicast Registration Table Displays all active multicast groups including the IP interface each entry appears
174. sssseseeressssssssserrereessssssssrrrerresessss 164 PPA A D DA ici E E E creer we Maarten estes 164 62 6 ROWUME K010 KAE E A E E 165 6 2 6 1 RIP and RIP 2 Dynamic Routing Protocols 00 0 165 6 2 7 Non IP Protocol Routing sessssseeeseeseeessssssssereresssssssserrerreessssss 166 63 Vra EANS seii A E TOE E tae E aed dee A 167 6 3 1 Assigning Ports to VLANS ssssssssseeeressssssssssreerressssssssrererreessssss 168 6 3 1 1 VLAN Classilication s cissa ois eons aa aun ae eee 168 OB Port OVer app ine acxctccuiduseer tn atat ie eacetineanteiahcetemacanter eenecee 168 Grou 1 3 Port based MLAN S os sarees Sopa ean ve sams E parses 168 6 3 1 4 Automatic VLAN Registration GVRP eee 168 6 3 2 Forwarding Tagged Untagged Frames cccccceeeeeeeeeetnteeeees 169 6 3 3 Connecting VLAN Groups sssssssseeeressssssssssrrreesssssssserrerreessssss 170 OA Multicast Filtering eiee eei a E A O AAT 171 64 1 IGMP SNOOP N ores ren enc seen ora mains EE EEE EEE EEEE 171 0 4 2 IGMP Protocol ariere e a e Ea Ea aes 171 6 4 3 GMRP Protocol isss iisisti sen achavnaheluieenlanuyiedste n aen aeai Eei 172 6 4 4 DVMRP Routing Protocol ssseeseeeeeeesssssssssrrerresssssssssrrerreesssss 172 6 5 Class of Service CoS Support seesssssessseeressssssssssrsereesssssssserrereeessss 173 6 6 BOOTP DHCP Relay mrononer e e E tie 174 6 Security Feature Sisir a E E E E E EE 175 6 7 1 SNMP Community Strings sssseeseeeeseeessssssse
175. st service It looks up the IP Multicast Group used for this service and adds any port which received a similar request to that group You can use the IGMP Snooping Configuration screen to configure multicast filtering shown below IGMP Snooping Configuration IGMP Snooping Status HD I SABLED IGMP Router Timeout Minutes 5 IGMP Group Timeout Minutes 5 Act as IGMP Querier DISABLED lt Apply gt lt Cancel gt To enable or disable IGMP snooping on your system READ SELECT Use lt TAB gt or arrow keys to move lt Space gt to scroll options WGS3 2620 User s Manual 51 Parameter IGMP Snooping Status 1 IGMP Router Timeout IGMP Group Timeout Act as IGMP Querier 2 Default Disabled Disabled Description If enabled the switch will monitor network traffic to determine which hosts want to receive multicast traffic This is also referred to as IGMP Snooping A switch port that stops receiving multicast protocol packets for this interval will be removed from the IGMP forwarding list Range 3 5 minutes The time between last spotting an IGMP Report message for an IP multicast address on a specific port and the switch removing that entry from its list Range 3 5 minutes If enabled the switch can serve as the querier which is responsible for asking hosts is they want to receive multicast traffic 1 This item is only displayed for Layer 2 mode For multilayer mode the full IGMP protocol
176. t Apply gt Total 0 Pages lt OK gt lt Prev Page gt lt Hext Page gt The page number Use lt TAB gt or arrow keys to move other keys to make changes Parameter Description Group Address An IP multicast group address with subscribers directly attached or downstream from this switch Source Address The IP subnetwork at the root of the multicast delivery tree This subnetwork contains a known multicast source Mask Subnet mask that is used for the source address This mask identifies the host address bits used for routing to specific subnets Upstream Nbr The IP address of the network device immediately upstream for this group Protocol The multicast routing protocol associated with this entry Up Time The time elapsed since this entry was created Note To scroll through the table use the lt Next Page gt and lt Prev Page gt buttons To display a specific page set the page number in the Page field and then select lt Apply gt WGS3 2620 User s Manual 98 4 6 6 4 3 Displaying the DVMRP Routing Table The DVMRP Routing Table contains all the IP multicast routes learned by the DVMRP protocol The routes displayed in this table are used by this switch to forward new IP multicast traffic They do not reflect active multicast flows DVMRP Routing Table Source Address Mask Upstream Hbr Interface Metric 192 168 1 0 24 192 168 1 254 1 1 192 168 3 0 24 192 168 3 254 2 1 192 168 4 0 24 192 168 4 254 3 1 Page lt Apply gt To
177. t Information 1 2 IP Address Subnet Mask VLAN 12345678901234567890123456 203 70 249 118 255 255 255 0 1 SSSSSS SSSSSSS SSSSSSSSSSS 192 168 1 254 255 255 255 0 2 S S Page lt Apply gt Total 1 Pages lt OK gt lt Prev Page gt lt Next Page gt The page number READ WRITE Use lt TAB gt or arrow keys to move other keys to make changes Parameter Description IP Address The address for an IP interface on this switch Subnet Mask A template that identifies the address bits in the host address used for routing to specific subnets Each bit that corresponds to a 1 is part of the network subnet number and each bit that corresponds to O is part of the host number VLAN The VLAN group associated with this IP interface Port Members The ports that can be reached through this IP interface Note To scroll through the table use the lt Next Page gt and lt Prev Page gt buttons To display a specific page set the page number in the Page field and then select lt Apply gt WGS3 2620 User s Manual 90 4 6 6 2 ARP Table Address Resolution Protocol ARP defines a method for finding a hosts Ethernet address from its Internet address This table shows the IP to MAC address cache discovered via ARP IP Address MAC Address 192 168 0 7 00 e0 18 O0f 19 aa 192 168 0 254 90 03 28 19 44 01 192 168 1 156 00 a0 cc 66 26 ba 192 168 1 253 00 03 2da 00 06 b8 203 249 00 00 b4 5d e9 8f 203 249 00 60 67 17 00 2b 203
178. t ina safe place 5 6 3 1 Displaying the Current User Configuration Use this menu to display the names and access rights for people authorized to manage the switch User Configuration Access Right Console Telnet HTTP fevest sft fest l Enabled l Enabled M Enabled fain s idin e M Enabled M Enabled M Enabled fo vest a I Enabled l Enabled M Enabled o O fet x Enabled l Enabled l Enabled ooo f fet e I Enabled I Enabled l Enabled Apply User Name User Password Parameter Description User Name Specifies a user authorized management access to the switch via the console Telnet or HTTP An entry can only be deleted via the console interface User Password associated with this entry Password Access Right ADMIN Read Write for all screens GUEST Read Only for all screens Console Authorizes management via the console Telnet Authorizes management via Telnet HTTP Authorizes management via HTTP These entries can consist of up to 15 alphanumeric characters and are not case sensitive WGS3 2620 User s Manual 116 5 6 4 Downloading System Software Use the TFTP Download menu to load software updates to permanent flash ROM in the switch The download file should be a binary file or an image file otherwise the agent will not accept it The success of the download operation depends on the accessibility of the TFTP server and the quality of the network connection After downloading the new software the agent will a
179. t item Specifies which VLAN have access right to its management interface Options include All VLANs All VLANs have access right to its management interface This is the default setting Mgmt VLAN Only the specified VLAN have access right to its management interface Note When using multilayer mode refer to Subnet Configuration on 5 7 5 1 Subnet Configuration WGS3 2620 User s Manual 113 5 6 2 Assigning SNMP Parameters Use the SNMP Configuration screen to display and modify parameters for the Simple Network Management Protocol SNMP The switch includes an on board SNMP agent which monitors the status of its hardware as well as the traffic passing through its ports A computer attached to the network called a Network Management Station NMS can be used to access this information Access rights to the agent module are controlled by community strings To communicate with the switch the NMS must first submit a valid community string for authentication The options for configuring community strings and related trap functions are described in the following figures and table 5 6 2 1 Configuring Community Names The following figure and table describe how to configure the community strings authorized for management access Up to 5 community names may be entered SNMP Communities Community Name Access Status public Read Write gt Enabled private Read Only Enabled Read Only gt Disabled
180. t paths or loops are detected one or more ports are put into a blocking state stopped from forwarding packets to eliminate the extra paths Moreover if one or more of the paths in a stable spanning tree topology fail this algorithm will automatically change ports from blocking state to forwarding state to reestablish contact with all network stations STA uses a distributed algorithm to select a bridging device STA compliant switch bridge or router that serves as the root of the spanning tree network It selects a root port on each bridging device except for the root device which incurs the lowest path cost when forwarding a packet from that device to the root device Then it selects a designated bridging device from each LAN which incurs the lowest path cost when forwarding a packet from that LAN to the root device All ports connected to designated bridging devices are assigned as designated ports After determining the lowest cost spanning tree it enables all root ports and designated ports and disables all other ports Network packets are therefore only forwarded between root ports and designated ports eliminating any possible network loops Once a stable network topology has been established all bridges listen for Hello BPDUs Bridge Protocol Data Units transmitted from the Root Bridge If a bridge does not get a Hello BPDU after a predefined interval Maximum Age the bridge assumes that the link to the Root Bridge is down This br
181. tal 0 Pages lt OK gt lt Prev Page gt lt Hext Page gt The page number Use lt TAB gt or arrow keys to move other keys to make changes Parameter Description Source Address The IP subnetwork at the root of the multicast delivery tree This subnetwork contains a known multicast source Subnet Mask Subnet mask that is used for the source address This mask identifies the host address bits used for routing to specific subnets Upstream Nbr The IP address of the network device immediately upstream for this multicast delivery tree Intf The IP interface on this switch that connects to the upstream neighbor See 4 6 6 1 Displaying Subnet Information Metric The metric for this interface used to calculate distance vectors Up Time The time elapsed since this entry was created Note To scroll through the table use the lt Next Page gt and lt Prev Page gt buttons To display a specific page set the page number in the Page field and then select lt Apply gt WGS3 2620 User s Manual 99 4 6 6 4 4 Displaying the DVMRP Neighbor Table The DVMRP Neighbor Table contains the switchs DVMRP neighbors as discovered by receiving DVMRFP protocol messages DVMRP Neighbor Table Interface Neighbor Address UpTime ExpireTime Ver RcvRoute 1 10 2 32 254 1040 26 3 18 2 10 1 15 19 1040 26 3 18 lt Apply gt Total 0 Pages lt Prev Page gt lt Hext Page gt The page number Use lt TAB gt or arrow keys to move other keys to make changes
182. tch for security reasons This menu item is only displayed for multilayer mode WGS3 2620 User s Manual 69 4 5 7 1 Configuring MAC Address Filters Any node that presents a security risk or is functioning improperly can be filtered from this switch You can drop all the traffic from a host device based on a specified MAC address Traffic with either a source or destination address listed in the Security Filtering Configuration table will be filtered MAC Security Filtering Configuration 00 30 4F 56 78 90 01 23 45 67 89 01 lt Apply gt Total 1 lt Prev Page gt lt Next Page gt Return to previous panel Use lt TAB gt or arrow keys to move lt Enter gt to select Note To add a MAC address to the security filtering use lt Add gt To delete an address highlight it with the cursor and press Enter To scroll through the address table use the lt Next Page gt and lt Prev Page gt buttons To display a specific page set the page number in the Page field and then press lt Apply gt WGS3 2620 User s Manual 70 4 5 7 2 IP Filtering Configuration If any node presents a security risk you can filter all traffic for this node by entering its address into the IP Security Filter Any packet passing through the switch that has a source or destination IP address matching an entry in this table will be filtered IP Security Filtering Configuration 192 168 1 5 192 168 5 20 Page 1 lt Apply gt Total 1 lt OK gt lt Pr
183. ted whenever the system operation mode is changed System Mode Layer 2 Multilayer lt OK gt Multilayer opration Use lt TAB gt or arrow keys to move lt Enter gt to select Parameter Description Layer 2 Filtering and forwarding decision will be based on MAC addresses for all protocol traffic Multilayer Switching based on MAC addresses will be used for all non IP protocol traffic and routing will be used for all IP protocol traffic Note When the switch is set to multilayer mode the IP menus are enabled and the IP Configuration Layer 2 Mode menu is disabled When operating in multilayer mode you should configure an IP interface for each VLAN that needs to communicate with any device outside of the VLAN See Subnet Configuration WGS3 2620 User s Manual 34 4 5 2 Layer 2 Menu The Layer 2 menu contains options for port configuration port mirroring port trunking and static unicast multicast address configuration These menu options are described in the following sections Layer 2 Menu Port Configuration Mirror Port Configuration Port Trunking Configuration Static Unicast Address Configuration Static Multicast Address Configuration Change the system port configuration Use lt TAB gt or arrow keys to move lt Enter gt to select Menu Description Port Configuration Enables any port enables disables flow control and sets communication mode to auto negotiatio
184. ters accordingly IGMP Snooping generates no additional network traffic allowing you to significantly reduce the multicast traffic passing through your switch 6 4 2 IGMP Protocol The Internet Group Management Protocol IGMP runs between hosts and their immediately neighboring multicast router switch IGMP is as a multicast host registration protocol that allows any host to inform its local router that it wants to receive transmissions addressed to a specific multicast group A router or multicast enabled switch can periodically ask their hosts is they want to receive multicast traffic If there is more than one router switch on the LAN performing IP multicasting one of these devices is elected querier and assume s the responsibility of querying the LAN for group members It then propagates the service requests on to any neighboring multicast switch router to ensure that it will continue to receive the multicast service WGS3 2620 User s Manual 171 Based on the group membership information learned from IGMP a router switch can determine which if any multicast traffic needs to be forwarded to each of its ports At Layer 3 multicast routers use this information along with a multicast routing protocol such as DVMRP to support IP multicasting across the Internet Note that IGMP neither alters nor routes any IP multicast packets A multicast routing protocol must be used to deliver IP multicast packets across different subnetworks
185. the Destination Network VLAN The VLAN within which the gateway or destination address resides Next Hop The IP address of the router at the next hop Note that the network portion of the next hop must match that used for one of the subnet IP interfaces configured on this switch See 4 5 6 1 Subnet Configuration Type The IP route type for the destination network This switch supports the following types Direct A directly connected subnetwork Indirect A remote IP subnetwork or host address Note Use the lt Next Page gt and lt Prev Page gt buttons to scroll through the static route table To display a specific page set the page number in the Page field and then press lt Apply gt To modify a static route highlight the entry in the table and press Enter To add a static route press lt Add gt WGS3 2620 User s Manual 66 Adding a Static Route The same screen is displayed for modifying or adding a static route You must provide route information as described in the preceding table plus the routing metric used to indicate the number of hops to the destination network Add Routing Entry Destination Address 10 1 16 0 Destination Mask 255 255 255 0 Hext Hop 192 168 1 250 Routing Metric 3 lt Cancel gt Save current screen setting and return to previous panel Use lt TAB gt or arrow keys to move lt Enter gt to select WGS3 2620 User s Manual 67 4 5 6 5 Configuring the Default Route Define
186. the multicast groups active on this switch Registration Table including the multicast IP address and the corresponding VLANs IP Menu Displays all the IP subnets used on this switch as well as the corresponding VLANs and ports Also contains the ARP table routing table and multicast menu 1 This menu is displayed only if the switch is set to Layer 2 mode 2 This menu is displayed only if the switch is set to multilayer mode WGS3 2620 User s Manual 145 5 8 1 Displaying Port Statistics Port Statistics display standard statistics on network traffic from the Interfaces Group and Ethernet like MIBs as well as a detailed breakdown of traffic based on the RMOM MIB Parameter Description Port Statistics Displays standard statistics on network traffic passing through the selected port RMON Displays detailed statistics for the selected port such as packet type and Statistics frame size counters 5 8 1 1 Displaying Ethernet Port Statistics Port Statistics display key statistics from the Interfaces Group and Ethernet like MIBs for each port Error statistics on the traffic passing through each port are displayed This information can be used to identify potential problems with the switch such as a faulty port or unusually heavy loading The values displayed have accumulated since the last system reboot Select the required port The statistics displayed are indicated in the following figure and table Port Number 13 gt
187. the security filter press Add To delete an address click on the edit icon for the required entry and press Delete 5 7 6 2 Configuring IP Address Filters If any node presents a security risk you can filter all traffic for this node by entering its address into the IP Security Filter Any packet passing through the switch that has a source or destination IP address matching an entry in this table will be filtered IP Filtering Configuration IP Filter Entry List Edit 10 1 1 IP Address Add Delete Cancel Note To add an IP address to the security filter press Add To delete an address click on the edit icon for the required entry and press Delete WGS3 2620 User s Manual 144 5 8 Monitoring the Switch The Network Monitor Menu provides access to port statistics address tables STA information VLANs registration and forwarding information multicast groups and subnet addresses Each of the screens provided by these menus is described in the following sections Menu Description Port Statistics Displays statistics on port traffic including information from the Interfaces Group Ethernet like MIB and RMON MIB Layer 2 Address Table Contains the unicast address table Bridge Menu Displays Spanning Tree settings for the overall switch and for specific ports VLAN Menu Displays ports dynamically learned through GMRP or GVRP and ports that are currently forwarding VLAN traffic IP Multicast Displays all
188. time for dynamic ARP entries Proxy ARP Enables or disables Proxy ARP globally for the switch This feature allows the switch to forward an ARP request from a node in the attached subnetwork that does not have routing or a default gateway configured to a remote subnetwork See 6 2 5 Proxy ARP If Proxy ARP is globally enabled for the switch then you can enable or disable it for a specific interface See 4 5 6 1 1 Adding an IP Interface or 4 5 6 1 3 Modifying an IP Interface RIP Enables or disables the Routing Information Protocol The Advanced menu sets the interval at which the switch advertises known routes and also enables disables advertising for static routes or the default route DHCP Relay Enables or disables BOOTP DHCP Relay The Advanced menu defines the preferred servers or the outbound subnetworks for broadcasting a BOOTP DHCP request IGMP Snooping Enables or disables IGMP Snooping The Advanced menu sets the timeout for inactive multicast ports or for specific multicast flows when there are no longer any clients DVMRP Enables or disables the Distance Vector Multicast Routing Protocol Note Once RIP and DVMRP have been globally enabled you can enable or disable them for any specific subnet via the Subnet Configuration menu WGS3 2620 User s Manual 61 4 5 6 2 1 Setting the ARP Timeout You can use the following configuration screen to modify the aging time for dynamically learned entries in the AR
189. tion message The maximum time in seconds a device can wait without receiving a configuration message before attempting to reconfigure The maximum time in seconds the root device will wait before changing states i e listening to learning to forwarding The minimum interval between the transmission of consecutive Configuration BPDUs The priority and MAC address of the device in the Spanning Tree that this switch has accepted as the root device The path cost from the root port on this switch to the root device The number of the port on this switch that is closest to the root This switch communicates with the root device through this port If there is no root port then this switch has been accepted as the root device of the Spanning Tree network Configuration The number of times the Spanning Tree has been reconfigured Changes Topology Up The time since the Spanning Tree was last reconfigured Time WGS3 2620 User s Manual 150 5 8 3 2 Displaying the Current STA for Ports The parameters shown in the following figure and table are for port STA Information STA Port Information Port Type Status Designated Cost Panta Designated Port 1 100BASE TX Disabled 0 32762 00304F18E640 128 1 2 100BASE TX Disabled iy 32768 00304F 18E640 128 2 3 100BASE TX Disabled 0 32768 00304F 18E640 128 3 4 100BASE TX Disabled 0 32768 00304F 18E640 128 4 5 100BASE TX Disabled 0 32768 00304F 18E640 128 5 6 100BASE TX Disabled i 32768 00304F 18E64
190. ts in which packets were dropped due to lack of resources Number of octets passing through this port A count of successfully transmitted frames for which transmission is inhibited by more than one collision The number of times that a collision is detected later than 512 bit times into the transmission of a packet The number of times that the carrier sense condition was lost or never asserted when attempting to transmit a frame The total number of frames received that were less than 64 octets in length excluding framing bits but including FCS octets and contained either an FCS or alignment error The total number of frames received that were longer than 1518 octets excluding framing bits but including FCS octets and contained either an FCS or alignment error Note Statistics are refreshed every 10 seconds by default See 5 3 2 Configuring the Serial Port WGS3 2620 User s Manual 147 5 8 1 2 Displaying RMON Statistics Use the RMON Statistics screen to display key statistics for each port from RMON group 1 RMON groups 2 3 and 9 can only be accessed using SNMP management software The following screen displays the overall statistics on traffic passing through each port RMON statistics provide access to a broad range of statistics including a total count of different frame types and sizes passing through each port Values displayed have been accumulated since the last system reboot Parameter Drop Events Recei
191. tup Menu are described in the following sections Menu Management Setup Menu Wetwork Configuration Serial Port Configuration SHMP Configuration User Configuration TFTP Download Configuration File Display or change network configuration Use lt TAB gt or arrow keys to move lt Enter gt to select Description N etwork Configuration Serial Port Configuration SNMP Configuration User Configuration TFTP Download Includes IP Configuration Ping facility and HTTP Web agent setup Sets communication parameters for the serial port including baud rate console time out and screen data refresh interval Activates authentication failure traps and configures communities and trap managers Sets the user names and passwords for system access Downloads new version of firmware to update your system in band Configuration File Download the configuration to a file or upload the configuration WGS3 2620 User s Manual file to the switch 17 4 4 1 Changing the Network Configuration Use the Network Configuration menu to set the bootup option configure the switch s Interne t Protocol IP parameters or enable the on board Web agent The screen shown below is described in the following table Hetwork Configuration IP Configuration IP Connectivity Test Ping HTTP Configuration lt OK gt Display or change the IP configuration Use lt TAB gt or arrow
192. uch as the command line utility included in Windows NT 2000 XP For example using Windows NT from a DOS window command prompt enter the TFTP command in the form TFTP i host GET PUT source destination To transfer a file 1 On Switch Specify the IP address of the TFTP client and select Download from switch or Upload to Switch Then select lt Start gt from the menu to start 2 On TFTP Client Set the mode to lt binary gt specify the IP address of the target switch and the directory path name of the file to transfer Then start transferring the configuration from the TFTP client or the switch and wait until the transfer completes For example type tftp i 203 70 249 118 GET source wgs3 txt on Windows 2000 s command prompt to download switch s configuration and type tftp 203 70 249 118 PUT wgs3 txt to upload the configuration file to switch WGS3 2620 User s Manual 32 4 5 Device Control Menu The Device Control menu is used to control a broad range of functions including port mode port mirroring port trunking Spanning Tree Virtual LANs IP subnets multicast filtering and routing protocols Each of the setup screens provided by these configuration menus is described in the following sections Menu System Mode Layer 2 Menu Bridge Menu VLAN Menu IGMP Snoopin Configuration IP Menu Security Device Control Menu System Mode Layer 2 Menu Bridge Menu
193. um was busy Excessive The number of frames for which transmission failed due to excessive Collisions collisions Drop Events The total number of events in which packets were dropped due to lack of resources Octets Number of octets passing through this port Multiple A count of successfully transmitted frames for which transmission is Collisions inhibited by more than one collision Late Collisions The number of times that a collision is detected later than 512 bit times into the transmission of a packet Carrier Sense The number of times that the carrier sense condition was lost or never Errors asserted when attempting to transmit a frame Fragments The total number of frames received that were less than 64 octets in length excluding framing bits but including FCS octets and had either an FCS or alignment error Jabbers The total number of frames received that were longer than 1518 octets excluding framing bits but including FCS octets and had either an FCS or alignment error Note Statistics are refreshed every 10 seconds by default See 4 4 2 Configuring the Serial Port WGS3 2620 User s Manual 75 4 6 1 2 Displaying RMON Statistics Use the RMON Statistics screen to display key statistics for each port from RMON group 1 RMON groups 2 3 and 9 can only be accessed using SNMP management software The following screen displays the overall statistics on traffic passing through each port RMON statistics provide
194. untime Code Hame of the file to download Enter new text Parameter Description Download Server IP IP address of a TFTP server Download Filename The binary file to download Download Option Specify the file to be Runtime code or POST code Note You can also download firmware using the Web agent or by a direct console connection after a restart WGS3 2620 User s Manual 30 4 4 6 Saving or Restoring the System Configuration Use the Configuration File menu to save the switch configuration settings to a file on a TFTP client The file can be later downloaded to the switch to restore the switchs settings The success of the operation depends on the accessibility of the TFTP client and the quality of the network connection Parameters shown on this screen are indicated in the following figure and table Configuration File Station IP ike Pere Ee Operation Download from switch lt START gt lt Cancel gt IP address of the TFTP client Use lt TAB gt or arrow keys to move other keys to make changes Parameter Description Station IP IP address of a PC running TFTP client software Operation Download from switch Downloads the current switch configuration to a file on the client PC Upload to switch Uploads a configuration file to the switch from the client PC WGS3 2620 User s Manual 31 Note Saving and restoring switch configuration settings can then be initiated by using any TFTP client utility s
195. upport IEEE802 3ad link aggregation port based Trunking support increase the bandwidth between switches 2 4 8 port in one trunk e 256 port based VLANs eliminate the broadcast packet increase the LAN security for different segments IGMP multicast snooping and filtering Port mirroring for port traffic diagnose with sniffer programs e RMON group 1 2 3 9 support 19 1U height rack mounting 100 240VAC 50 60HZz universal Power input e FCC CE class A compliant WGS3 2620 User s Manual 1 Specification HARDWARE SPECIFICATIONS IP Layer 3 10 100 1000Mbps Routing Switch Product Model Ports Speed per port LED Indicators Rack Mount Dimensions WGS3 2620 24 port 10 100Base TX RJ 45 Interface 2 port 1000Base T RJ 45 Interface Port 1 24 10 100Mbps Auto negotiation Auto MDI Port 25 26 1000Mbps Auto negotiation Auto MDI Port 1 24 Two per port Link Mode Modes include FDX ACT Speed Port 25 26 Two per port Link FDX 1 U 19 Rack mount 430 mm x 334 mm x 44 mm Wx Dx H SWITCHING SPECIFICATIONS Architecture Memory Switching fabric MAC address Table Forwarding filteri ng rate Error Checking Media Type High Performance Store amp Forward Switching Architecture 4MB 8 53Gbps Layer 2 32K MAC entry Layer 3 64K IP entry Layer 2 wired speed forwarding Layer 3 wired speed forwarding Runt amp CRC on all network packets RJ 45 STP Port 25 26 MDI Auto detect
196. utomatically restart itself Parameters shown on this screen are indicated in the following figure and table TFTP Download Management Server IP Address 192 168 1100 FileName wz2i0limg Download Option Runtime Code Start TFTP Download Cancel Parameter Description Server IP Address IP address of a TFTP server File Name The binary file or image file to download Download Option Specify the file to be Runtime Code or POST Code Start TFTP Issues request to TFTP server to download the specified file Download WGS3 2620 User s Manual 117 5 6 5 Saving or Restoring the System Configuration Use the Configuration File menu to save the switch configuration settings to a file on a TFTP client The file can be later downloaded to the switch to restore the switchs settings The success of the operation depends on the accessibility of the TFTP client and the quality of the network connection Parameters shown on this screen are indicated in the following figure and table Configuration File Management Station IP 192 168 1 101 Operation Download from switch Cmos Parameter Description Station IP IP address of a PC running TFTP client software Operation Download from switch Downloads the current switch configuration to a file on the client PC Upload to switch Uploads a configuration file to the switch from the client PC Note Saving and restoring switch configuration settings can then be initiated by usin
197. ved Bytes Received Frames Broadcast Frames Multicast Frames CRC Alignment Errors Undersize Frames Oversize Frames Fragments Jabbers Collisions 64 Byte Frames 65 127 Byte Frames 128 255 Byte Frames 256 511 Byte Frames 512 1023 Byte Frames 1024 1518 Byte Frames Description The total number of events in which packets were dropped due to lack of resources Total number of bytes of data received on the network This statistic can be used as a reasonable indication of Ethernet utilization The total number of frames bad broadcast and multicast received The total number of good frames received that were directed to the broadcast address Note that this does not include multicast packets The total number of good frames received that were directed to this multicast address The number of CRC alignment errors FCS or alignment errors The total number of frames received that were less than 64 octets long excluding framing bits but including FCS octets and were otherwise well formed The total number of frames received that were longer than 1518 octets excluding framing bits but including FCS octets and were otherwise well formed The total number of frames received that were less than 64 octets in length excluding framing bits but including FCS octets and contained either an FCS or alignment error The total number of frames received that were longer than 1518 octets excluding framing bits but including FCS
198. ved for this multicast group on this interface If no membership report has been received this object has the value 0 0 0 0 The time elapsed since this entry was created The time remaining before this entry will be aged out The default is 260 seconds The time remaining until the switch assumes that there are no longer any IGMP Version 1 members on the IP subnet attached to this interface The default is 400 seconds If the switch receives an IGMP Version 1 Membership Report it sets a timer to note that there are Version 1 hosts present which are members of the group for which it heard the report If there are Version 1 hosts present for a particular group the switch will ignore any Leave Group messages that it receives for that group Note To scroll through the table use the lt Next Page gt and lt Prev Page gt buttons To display a specific page set the page number in the Page field and then select lt Apply gt WGS3 2620 User s Manual 97 4 6 6 4 2 Displaying the Multicast Forwarding Cache The switch maintains a cache of multicast routing entries used to calculate the delivery tree in multicast routing protocols The Multicast Forwarding Cache includes the subnetwork that contains the multicast source and the nearest upstream neighbor for each known multicast group address Multicast Forwarding Cache Group Address Source Address Mask Upstream Hbr Protocol Up Time 234 7 6 99 10 1 0 0 16 10 1 15 19 DVMRP 17 Page l
199. very visit to the page 2 When using Internet Explorer 5 0 you may have to manually refresh the screen after making configuration changes by pressing the browser s refresh button WGS3 2620 User s Manual 105 5 3 Panel Display The Web agent displays an image of the switch s ports showing port links and activity Clicking on the image of a port displays statistics and configuration information for the port Clicking on the image of the serial port labeled Mgmt displays the Console Configuration screen Clicking on any other part of the front panel displays Displaying Switch Version Information M gmat Link Up Er Link Down Mode Acie Gl CEALL CEELI z P 5 3 1 Port State Display Click on any port to display a summary or port status as shown below as well as Etherlike statistics Port 1 state summary Name Type LOOBASE TX Admin Status Enabled Link Status Down Speed Status LOM Duplex Status Half Flow Control Status Off VLAN ID 1 Parameter Description Type Shows port type as 100BASE TX 10BASE T 100BASE TX 1000BASE T Admin Status Shows if the port is enabled or has been disabled due to abnormal behavior or for security reasons See Configuring Port Parameters Link Status Indicates if the port has a valid connection to an external device Speed Status Indicates the current port speed Duplex Status Indicates the ports current duplex mode Flow C
200. work devices to register end stations with multicast groups If GMRP is globally enabled for the switch then you can individually enable or disable GMRFP for a specific port See 4 5 4 1 VLAN Port Configuration IGMP and IGMP Snooping also provide multicast filtering For multilayer mode the full IGMP protocol set is automatically enabled disabled along with DVMRP See 6 4 2 IGMP Protocol 4 5 6 1 5 Configuring DVMRP and 4 5 5 Configuring IGMP Snooping GARP VLAN Registration Protocol GVRP defines a way for switches to exchange VLAN information in order to register VLAN members on ports across the network This function should be enabled to permit automatic VLAN registration and to support VLANs which extend beyond the local switch If GVRP is globally enabled for the switch then you can individually enable or disable GVRP for a specific port See 4 5 4 1 VLAN Port Configuration This switch supports Quality of Service QoS by using two priority queues with Weighted Fair Queuing for each port Up to 8 separate traffic classes are defined in IEEE 802 1p So any packets with a priority equal to or higher than this threshold are placed in the high priority queue Time out period in seconds for aging out dynamically learned forwarding information Range 10 1000000 seconds You can use 4 5 4 1 VLAN Port Configuration to configure the default priority for each port WGS3 2620 User s Manual
201. y for all ingress ports is zero Therefore any inbound frames that do not have priority tags will be placed in the low priority queue of the output port Note that if the output port is an untagged member of the associated VLAN these frames are stripped of all VLAN tags prior to transmission If you want to create a small port based VLAN for just one or two switches you can assign ports to the same untagged VLAN and use a separate connection where a VLAN crosses the switches However to participate in a VLAN group that extends beyond this switch we recommend using the VLAN ID for that group using VLAN tagging for Layer 2 mode or a common PVID for multilayer mode WGS3 2620 User s Manual 48 When operating the switch in Layer 2 mode ports assigned to a large VLAN group that crosses several switches must use VLAN tagging But when operating in multilayer mode this switch does not currently support tagging so you should set the PVID to the same value at both ends of the link if the device you are attaching to is VLAN aware and configure an IP interface for this VLAN if you need to connect it to other group This limitation will be removed for future firmware versions Parameter Default Description GVRP Enabled Enables or disables GVRP for this port When disabled any GVRP packets received on this port will be discarded and no GVRP registrations will be propagated from other ports Note that GVRP must be enabled globally for th
202. y port e Set the communication mode for any port e Configure SNMP parameters e Add ports to network VLANs e Configure IP routing and multicast VLANs e Display system information or statistics e Configure the switch to join a Spanning Tree e Download system firmware 3 2 Required Connections 3 2 1Console Port Out of Band Connections Attach a VT100 compatible terminal or a PC running a terminal emulation program to the serial port on the switch s rear panel Use the null modem cable provided with this package or use a null modem connection that complies with the wiring assignments shown in Appendix B of this guide When attaching to a PC set terminal emulation type to VT100 specify the port used by your PC i e COM 1 4 and then set communications to 8 data bits 1 stop bit no parity and 19200 bps for initial configuration Also be sure to set flow control to none Refer to Configuring the Serial Port for a complete description of configuration options Note If the default settings for the management agent s serial port have been modified and you are having difficulty making a console connection you can display or modify the current settings using a Web browser as described under Configuring the Serial Port WGS3 2620 User s Manual 8 3 2 2 Remote Management via the Console Port 3 2 2 1 Configuring the Switch Site Connect the switch s DB9 serial port to the modem s serial port using standard cabling For
203. y the routing metric probe interval and neighbor router timeout Subnet Configuration Modify DVMRP Configuration Metrics Probe Interval in seconds 10 Neighbor Timeout in seconds 35 Metrics Use lt TAB gt or arrow keys to move other keys to make changes Parameter Default Description Metrics 1 hop This value is used to select the best reverse path to networks that are connected directly to an interface on this switch Range 1 31 hops Probe 10 The interval between sending neighbor probe messages to the Interval seconds multicast group address for all DVMRP routers Range 5 30 seconds Neighbor 35 The interval to wait without hearing from a DVMRP neighbor Timeout seconds before declaring it dead This is used for timing out routes and for setting the children and leaf flags Range 10 8000 seconds Note IGMP is automatically enabled disabled along with DVMRP See 6 4 2 IGMP Protocol WGS3 2620 User s Manual 60 4 5 6 2 Protocol Configuration Use the Protocol Configuration screen to globally enable or disable unicast or multicast routing protocols for the switch Protocol Configuration EHABLED EHABLED Advanced DHCP Relay DISABLED Advanced IGMP Snooping DISABLED Advanced DVMRP EHABLED lt Apply gt lt Cancel gt System ARP protocol advanced status Use lt TAB gt or arrow keys to move lt Enter gt to select Parameter Description ARP Sets the aging

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