3Com 3500 13

13 RESILIENT LINKS

Resilient links protect your network against the failure of an individual

link or device by providing a secondary backup link that is inactiv e until it

is needed.

This chapter provides guidelines and oth er key information about how to

configure resilient links in your system.

For more informat ion about resilie nt links, see the Implementation Guide

for your system.

Menu Structure The commands that you can use depend on the system that you have,

your level of access, and the types of modules an d other hardware

options that are configured for your system. The followin g diagram

shows the complete list of commands for all systems. See the checklist at

the beginning of each command description in this chapter for whether

your system supports the command.

Top-Level Menu

system

module

management

ethernet

fddi

➧bridge

ip

ipx

appletalk

qos

snmp

analyzer

log

script

logout

disconnect

link menu

summary

detail

define

linkState

activePort

modify

remove

bridge menu

display

ipFragmentation

ipxSnapTranslation

addressThreshold

agingTime

spanningTree

gvrpState

cos

port

multicast

packetFilter

vlan

trunk

mpla

➧link

Contents

Main Command Reference Guide 3Com Corporation 5400 Bayfront Plaza Santa Clara, California 95052-8145 C ABOUT THIS GUIDE PART IG ETTING STARTED 1 P ART II S YSTEM -L EVEL F 3 4 P ART III E STABLISHING M ANAGEMENT A 5 6 P ART IV P HYSICAL P ORT P 7 8 PART VB RIDGING PARAMETERS 9 10 11 12 13 14 15 P ART VI R OUTING P 16 Page 17 18 19 20 21 ALK PART VII TRAFFIC POLICY 22 P ART VIII M 23 24 P ART IX R I A ECHNICAL SUPPORT Page ABOUT THIS GUIDE Using This Book Finding Specific Information in This Guide Page Page Conventions Tabl e 3 Text Conventions Page Page Page Page 1 Administration Console Overview CoreBuilder 9000 System Management Overview Page Figure1 System Data Channels in the16-slot Chassis CoreBuilder 9000 Management Features Configuration Tasks Tabl e 4 Types of Commands Associated with Configuration Tasks Accessing the Administration Console Page Page Page Using Menus to Perform Tasks Page Page Page 2 Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page II Page 3 68 CHAPTER 3: SYSTEM ENVIRONMENT In addition, this chapter describes the script and logout options from the top-level menu. Page Page Page system console webAccess Enables or disables access to the Web Management software. Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page System Time Timezone Example (3500) Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Example Script (3500) This example scripts these tasks to initially configure your system: Page 4 128 CHAPTER 4: MODULE ENVIRONMENT Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page III Page 5 150 CHAPTER 5: OUT-OF-BAND MANAGEMENT Menu Structure Page Page Page Page Page interface summary Fields in the Management IP Interface Summary Display interface define Defines the IP address of the IP management out-of-band p ort. Page Page Page Fields in the Management IP Route Display Status for Routes Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Management IP Ping Example Page Page Management IP Advanced Ping Exa mple Page Page advancedTraceRoute Traces a route to a host with one or more of the advanced traceRoute options. Options Management IP Advanced Trace Route Example (TTL value of 10): Options Fields in the Management IP Statis tics Display Fields in the Management UDP S tatistics Display Fields in the Management ICMP S tatistics Display Page 6 MANAGEMENT PROTOCOL (SNMP) 190 CHAPTER 6: SIMPLE NETWORK MANAGEMENTPROTOCOL (SNMP) Menu Structure Page Page Page Page 1From the top level of the Administration Conso le, enter: Page Page Page Page snmp writeDisable Allows or disallows SNMP write requests. IV Page 7 Menu Structure Page Fields in the Ethernet Summary Display Page Page Fields in the Ethernet Detail Disp lay Page Page Page Page Page Page Page Flow Control Settings Page Page Page Page Page Page 8 INTERFACE (FDDI) Fields in the FDDI Station Display Page Page Page Page fddi path display Displays FDDI path information. Valid Minimum Abbreviation ports. Fields in the FDDI Path Display Page Page Page Page Page Page Page Page Page Page Page Fields in the FDDI Port Display Page Page Page Page Page Page Page V Page 9 Fields in the Bridge Display Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page 10 Page Page Page Page Page Page Page Page Page on its bridge and port STP states: Page Page Page Page add Adds new MAC addresses to the selected bridge ports as statically configured addresses. groups ports that are associated with a trunk on one line (for example, and cannot be learned on a different port. You must first remove it from its former port . Removes individual MAC addresses from the address table. because the bridge could relearn a dynamic MAC address shortly afte r you remove it. Page Page flushDynamic automatically flushed. 11 300 CHAPTER 11: TRUNKS Page Page Page Page bridge trunk detail Displays detailed trunk information in addition to the summary information. Fields in the Bridge Trunk Detail Display Page Page Page Page Page Page Page Page Page Page Page Bridge Trunk Modify Example (9000) Page Page Page 12 (MPLA) Page Page Page Page Page 13 Page Page Page Page Page Page Page Page Page 14 Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page 3Configure the per-port tagging. Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page 15 370 CHAPTER 15: PACKET FILTERS Page Page Page Page Page Page Page Replace Existing Filter Example (3500) Store as New Filter Example (3500) Page Page The user next connects to the module and loads the filter. Page Bridge Packet Filter Assign Examples (3500) bridge packetFilter unassign Unassigns selected packet filter from one or more ports. to at least one port. loaded filters on the system. Page Page Page Page Bridge Packet Filter Port Group Create Example (3500 ) Page Page Page VI Page 16 Menu Structure Page Page Options Fields in the IP Interface Summary Display index number even if you have only one interface defined. Options Fields in the IP Interface Detail Disp lay Page IP Interface Detail Example (3500) Page Page IP Interface Define Example (Port-based Routing) IP Interface Define Example (VLAN-based Routing) ip interface define (3900/9300/9400/ 9000 Layer 2) Defines an IP interface. (VLAN) and select IP as a protocol that the VLA N supports, as described in Chapter 16. Options IP Interface Define Example Page Page Page Page Page Page Page Page Page Page Page have only one interface defined. Options Fields in the IP Interface Statistics Dis play Page Page Fields in the IP Route Display Status for Routes Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Fields in the IP RIP Display Page IP RIP Mode Example Page Page Page Page Page Page Page ip rip remove Advertisement Removes an advertisement address from the list of RIP advertisement addresses for an in terface. Options Page Page Page Page RIP Import Policy Conditions for Specified Interfaces RIP Export Policy Conditions for Specified Interfaces Example of Import Policy Example of Export Policy Page Page Page Page Page Options IP Ping Example Page Page IP Advanced Ping Example Page Page ip advancedTraceRoute Traces a route to a host with one or more of the advanced traceRoute options. Options IP Advanced Trace Route Example (TTL value of 10): Options Fields in the IP Statistics Display Fields in the UDP Statistics Display Fields in the ICMP Statistics Display Page 17 (VRRP) Fields in the IP VRRP Summary Display Sample IP VRRP Summary Display Fields in the IP VRRP Detail Display Page Page ip vrrp detail 491 Sample IP VRRP Detail Display Page Page IP VRRP Define Example Page Page IP VRRP Modify Example Page must disable the virtual router before you can change or delete the virtual router. IP VRRP Mode Example Page Page Page 18 504 CHAPTER 18: IP MULTICAST interface summary Fields in the IP Multicast DVMRP Interface Summary Display interface detail Displays information about IP interfaces that run the Distance-Vector Multicast Routing Protocol. Fields in the IP Multicast DVMRP I nterface Detail Display Page Page Page Fields in the IP Multicast DVMRP Tunnels Summar y Display Page Page Page Page Page Page routeDisplay Fields in the IP Multicast DVMRP Route Display cacheDisplay Fields in the IP Multicast DVMRP Ca che Display Options Page Page Page Page Page Page Page Page Fields in the IP Multicast Cache Di splay Page 19 530 CHAPTER 19: OPEN SHORTEST PATH FIRST (OSPF) Page Page modifyArea Modifies an existing OSPF area. Valid Minimum Abbreviation Page addRange Adds a range to an existing OSPF area. Valid Minimum Abbreviation modifyRange Modifies an OSPF area range. Valid Minimum Abbreviation IP OSPF Areas Modify Range Example Page Page Page Page Page Page Page Displays statistics that are associated with specified OSPF interfaces. Fields in the IP OSPF Interface Stati stics Display Page Page Page mode Enables or disables OSPF on specified IP interfaces. Page Page Page Page Page retransmit Specifies the OSPF link state advertisement (LSA) retransmit interval for an interface. Page Page Page router Displays router link state advertisements (LSAs) in the link state database. Fields in the IP OSPF Link State Data Router Display Page network Displays network link state advertisements (LSAs) in the link state database. Fields in the IP OSPF Link State Data Netw ork Display Displays summary link state advertisements (LSAs) in the link state database. Fields in the IP OSPF Link State Data Summ ary Display Page ip ospf neighbors display Displays information about currently defined nei ghbors in an OSPF area. Fields in the IP OSPF Neighbors Di splay Page ip ospf neighbors Removes a static neighbor from an existing interface. Page IP OSPF Router ID Example (Interfac e Type) IP OSPF Router ID Example (Address Type) ip ospf partition display Displays OSPF memory allocation. how OSPF memory allocation works and how t o modify it. Fields in the IP OSPF Partition Display Page Page Page Page Displays summary information about a virtual link. Fields in the IP OSPF Virtual Links Summ ary Display Page Fields in the IP OSPF Virtual Link s Detail Display Fields in the IP OSPF Virtual Links N eighbor Display Displays statistics that are associated with virtual links. Fields in the IP OSPF Virtual Links Statisti cs Display Page Page Page Page Removes a virtual link. areaID Modifies the transit area that is associated with a virtual link. router Modifies the target router that is associated with a virtual link. Page Page retransmit Sets the virtual link retransmit interval, in seconds. dead Sets the virtual link dead interval, in seconds. Page Page Page Page Page Page OSPF Import Policy Conditions OSPF Export Policy Conditions Export Policy Conditions for Direct Routes ip ospf policy define 597 Example of Import Policy Example of Export Policy Example of Export Policy for a Directly Connected Interface Page Page OSPF Import Policy Conditions OSPF Export Policy Conditions Export Policy Conditions for Direct Routes IP OSPF Policy Modify Example Page Page Page 20 606 CHAPTER 20: IPX Page Page IPX Interface Define Example Page Page Page Page Page Page Fields in the IPX Route Display Page Page Page Page Page Page Options (3500 only ) Fields in the IPX Server Display Page Page Page Page Page Page Page Page ipx rip policy Display a list of IPX RIP (Routing Information Protocol) policies. Fields in an IPX RIP Policy Summary D isplay routing table. network, the protocols, and the routing table manager. IPX RIP Policy Define Example routing table. network, the protocols, and the routing table manager. IPX RIP Policy Modify Example Page Page Page ipx sap policy Display a list of IPX SAP (Service Advertising Protocol) policies. Fields in an IPX SAP Policy Summary D isplay Page Page Page IPX SAP Policy Define Example Page Page IPX SAP Policy Modify Example Page Page Page Page Page Page Page Fields in the IPX Interface Statistics Display Page Page Options IPX NetBIOS Example (3500) Page Page 21 ALK 662 CHAPTER 21: APPLETALK Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page ddp Displays AppleTalk Datagram Delivery Protocol (DDP) statistics. Fields in the AppleTalk DDP Statistics Display rtmp Displays AppleTalk Routing Table Maintenance Protocol (RTMP) statistics. Fields in the AppleTalk RTMP Statistics Display zip Displays AppleTalk Zone Information Protocol (ZIP) statistics. Fields in the AppleTalk ZIP Statistics Display Page Page Page 22 AND RSVP 690 CHAPTER 22: QUALITY OF SERVICE (QOS) AND RSVP qos classifier Fields in the QoS Classifier Summary D isplay Options Fields in the QoS Classifier Detail D isplay Page Page Page Page Page Page QoS Classifier Define Example (Flow C lassifier) Page Page Page Page Page Page Page Fields in the QoS Control Summary D isplay Options Fields in the QoS Control Detail Displa y Page Page Page Page Page Table7 lists the opt ions for the input time types. The key to the prompts are: Tabl e 7 Input Time Type Options Page Page Page select. Page Page Page Page Page Page Page Page Page Fields in the QoS RSVP Summary Display command displays only the summary inform ation. Options Fields in the QoS RSVP Detail Displ ay system. You can oversubscribe (over 100) and specify a value of up to 200. Options Page Page Page Page Page Page Page Page Page Page Page Options Fields in the QoS Transmit Statistics Display Page Page Page Page 23 Page Page log devices Configures severity levels for event logging on the Administration Console. severity levels. Log Devices Examples (3500) (for example, warning,config). Page log services Enables the logging of messages that pertain to the following services: severity levels. (for example, system, appletalk and error, warning). Page Page 24 756 CHAPTER 24: ROVING ANALYSIS Fields in the Analyzer Display Analyzer Display Example (3500) Page Analyzer Add Example (9000 1000BAS E-SX module) Page Page Analyzer Start Example (9000 1000BASE-SX module) Page Page Page Page A ECHNICAL SUPPORT Online Technical Services Page Support from Your Network Supplier Support from 3Com 770 APPENDIX A: TECHNICAL SUPPORT When you contact 3Com for assistance, ha ve the following information ready: Here is a list of worldwide technical telephone suppo rt numbers: Europe, South Africa, and MiddleEast From the following countries, you may use the toll-freenumbers: (1 800 638 3266) Enterprise Customer s: 1 800 876-3266 Returning Products for Repair Page I Symbols Numbers A B C D E F G H I K L M N O P Q R S T U V W Z