Vrrp | 3Com 3500 manual

VIRTUAL ROUTER REDUNDANCY

17 (VRRP)

Virtual Router Redundancy Protocol (VRRP) provides fault-tolerant routing on a LAN by eliminating the single point of failure that exists when hosts are configured with a static default gateway. This chapter provides guidelines and other key information about configuring VRRP on your system.

For more information about VRRP, see the Implementation Guide for your system.

For the CoreBuilder® 9000 platform, the commands in this chapter apply to Layer 3 switching modules only.

Menu Structure The commands that you can use depend on the system that you have, your level of access, and the types of modules and other hardware options that are configured for your system. The following 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		ip menu			vrrp menu
system		interface			summary
module		route			detail
management		arp			define
ethernet		multicast			modify

fddi		dns			remove
bridge		➧ vrrp			mode

➧ ip		udpHelper			neighbor

ipx		routing			statistics
appletalk		ospf
qos		rip
snmp		ping
analyzer		advancedPing
log		traceRoute
script		advancedTraceRoute
logout		statistics
disconnect

Image 485

3Com 3500 manual Vrrp

Contents

Command Reference Guide 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Contents System console timeout timeOut System console security accessSystem serialPort terminalSpeed System serialPort serialPortMode System sntp display System nvData resetSystem sntp remove Module baseline display Management ip advancedPing Management ip rip statistics Part IV Physical Port Parameters Ethernet paceAccess Bridge cos summary Part V Bridging Parameters Virtual Lans Vlans Ip interface icmpRouterDiscovery Bridge packetFilter unassign Ip arp display Ip multicast dvmrp tunnels summary Ip vrrp statisticsIp multicast igmp interface summary Ip multicast cache Ip ospf virtualLinks statistics Ip ospf linkStateData summary Ipx rip policy summary Ipx server static Ipx statistics sap Ipx statistics summaryAppletalk interface summary Appletalk sourceSocket Qos classifier detail Qos rsvp enableQos classifier summary Analyzer display 3Com Knowledgebase Web ServicesPage Platform Release CoreBuilder SuperStack II SwitchPlatforms Covered in This Document Help you to understand the commands About command syntax, field descriptions, default values,Material about why or when to use a particular command. For Information about troubleshooting and networking tasks, see Finding Specific Information in This Guide Full command name Command description begins at the top of a page. a commandPlatforms on which this command is valid Short description of the purpose of the command Icon Description Recommendations For Entering CommandsThroughout this guide Convention Description Documentation more useful to you Include the following information when commentingPlease send e-mail comments about this guide to Document title About this Guide Administration Overview Command Summary Page CoreBuilder 9000 Management Features Administration Console OverviewConfiguration Tasks Accessing the Administration Console Management features Management Controller EMC functions, such as login tableAdministration Console Use the Administration Console to manage the CoreBuilder See the Web Management User Guide for the CoreBuilder PSU Chassis Management Architecture Provides a cost-efficient Intelligent Power Management Manages power useEME Overview Type Command Top-Level Menus Tasks Levels Password Access System displays a prompt similar to the following All modules use subslot Administer Access Example Read Access Example Write Access Example Layer 2 switching module is installed Structure diagrams at the beginning of most chapters showYour system supports the command Menu options are not case sensitive Entering a Command String Entering Values in Command Strings Entering Abbreviated CommandsTo accept the default or current value, press Enter Enter q Part II System-Level Functions System Environment Gives an overview of all the commands in this bookCommand Summary Command Summary Script logout Module redundancy reset NonRedundant module nameCh 4 Module Environment Module display Management summary management detail management ip Ethernet summary Ethernet detail Ethernet autoNegotiation Ch 6 SnmpPart IV Physical Port Parameters Ch 7 Ethernet Ports Fddi mac path fddi port display Ch 8 FddiFddi station display Bridge multicast igmp summary Part V Bridging Parameters Ch 9 Bridge-wide ParametersBridge display Ch 10 Bridge Ports Ch 13 Resilient Links Ch 11 TrunksCh 12 MultiPoint Link Aggregation Ch 15 Packet Filters Ch 14 Virtual LANs VLANs Part VI Routing Protocols Ch 16 IP Command Summary Ch 17 Vrrp Ip rip password Ip rip addAdvertisement Ip multicast traceRoute Ch 18 IP Multicast Ip ospf areas display Ch 19 Ospf Command Summary Ipx server secondary Ch 20 IPX Ipx secondary Ipx forwarding ipx rip mode ipx rip triggeredIpx sap triggered Ch 21 AppleTalk Part VII Traffic Policy Ch 22 Quality of Service and Rsvp Ch 24 Roving Analysis Log display Log devices Log servicesPart Viii Monitoring Ch 23 Event Log Command Summary System Environment Module Environment Page System Environment System Environment Valid Minimum Abbreviation System displayImportant Consideration Fields in the System Display System fileTransfer Prompt Description Possible Values DefaultOptions File transfer File transfer protocol for Installation Are located Enter Web URL where the Web Help Sy co w Options System console consoleAccess System console ctlKeys Password Access levelImportant Considerations Logging on to the system Most terminal screens are 24 lines high Fields in the System Console Security Display Displays a summary of trusted IP client informationNot a trusted client Trusted IP address IP address of the trusted IP client Mask System console security define Specified IP IP address IP address of the interfaceChosen from the range Client index Trusted IPTo remove All Client ? for a list of selectable indexes System console security access Network Current deny message System console timeout timeOut Telnet Timeout interval Minutes Interval System snapshot summary System snapshot detail 3900 9300 Tftp Procedure FTP Procedure 3500 Only Host IP Loads a new revision of system software Sy b d System baseline set Resets the baseline counters to zero RequestedState Valid Minimum Abbreviation System baseline Enables or disables a baseline Terminal Procedure Local Connection Enter the terminal speed setting for the terminal port Procedure IP Interface System serialPort modemSpeed New value Sets the baud rate of your system serial port System serialPort baudRate Procedures Procedure Sy se e System name Dst If you enter y to the prompt, a sub-menu appears that Mean TimeUser specified option for start and end dates If you enter n, you are returned to the Time menu Format Description System time datetime Sets the system’s date and time Time zone Index That you want to configureSystem time timezone 14 GMT+100 CET/FWT/MET/MEWT/SWT System Time Timezone Example Enter a daylight saving time option System time dst Sets daylight savings timeFormat for option 5 is ccyy-mm-ssThhmmss Important Considerations Tftp System nvData save Previous IP Important Consideration FTP and TftpOptionally, enter a label for the file Example System nvData save System reboots after each You may not want to rebootReset Continue? If you enter y, the system displays the following messages For example Sy nv e Do you wish Confirmation of the reset System nvData resetContinue? To reboot because resetting So the system reboots after System clearDiagBlock System diagErrLog System sntp display Field Description Configuration InformationDisplays Simple Network Time Protocol Sntp information Fields in the System Sntp Display Valid IP address Address Sntp database Except System sntp defineServer’s IP System sntp modify System sntp remove System sntp state Sntp state Whether you want to Disabled 3600 Request poll Seconds, the poll interval Local system time System sntp toleranceTime Time threshold value, Seconds 900 Tolerance Reboot Confirmation that you want to System? Yes System rebootReboots the system Valid Minimum Abbreviation Important Considerations Example Script Press Escape to return to the top level before you log out Module Environment Module Environment Module display Switching Fabric This module 3C numberFields in the Module Display Port Gigabit Module snapshot You use the snapshot featureSummary Detail display images Module snapshot detail Displays when the current baseline was last set Module baseline set Enables or disables a baseline Module redundancy Possible Prompt Description Values Default Mo nam Module Time Example Most terminal screens are 24 lines Necessary after each reset Module nvData resetPrompts Do you wish Confirmation prompt Performs an emergency download Displays emergency download information for your module Module nvData staging 3500 9000 9400 Module diagErrLog Reboots the specified module Module reboot You from a Telnet session Enterprise Management Engine EME module Establishing Management III Access Page OUT-OF-BAND Management OUT-OF-BAND Management Fields in the Management Summary Display Mode options. If autonegotiation is enabled, port mode That sets the port mode on Ethernet ports that have portReqPortMode Values are ignored Fields in the Management Detail Display Management detail Port was disabled Default is enabledLateCollisions MacAddress MAC address of this port MultiCollisions RxUnicasts Periods are 1 second long not configurableTo a higher-level protocol or application Port during the most recent sampling period. Sampling Fields in the Management IP Interface Summary Display Interface, chosen from Range of addresses that IP address IP address of the out-of-band Command Removes an IP management interface if you no longer need it Management ip route display Value Description Fields in the Management IP Route DisplayStatus for Routes Defines a static route Destination IP Deletes an existing route Ip ro fl Adds a default route to the routing table immediately Deletes the default route IP address or IP address that is Searches for a route in the routing table Fields in the Management IP ARP Display Management IP ARP Static Example Defines a static ARP cache entry on the systemYou can define up to 128 static ARP entries Management ip arp remove Deletes all entries from the ARP cache Ip ar flushD Default, advertise, and enabled Index Index number of the interface RIP-1 modeRIP-2 mode Fields in the Management IP RIP Display Learn Current Value Advertise Enabled RIP modeIP interfaces Which you want to set the RIP Management IP RIP Mode Example Fields in the Management IP RIP Statistics Display Displays general RIP statistics Management ip ping To interrupt the command, press Enter Management IP Ping Example Management ip advancedPing Disabled, the system displays Enabled, the system displaysDisabled disabled Enabled Time between Period . upon receiving an Icmp Management IP Advanced Ping Example Ip t Ip traceRoute Management IP Trace Route Example Wait Wait interval in seconds that Management IP Advanced Trace Route Example TTL value Fields in the Management IP Statistics Display Fields in the Management Icmp Statistics Display Fields in the Management UDP Statistics Display Sent OutAddrMasksNumber of Icmp time stamp reply packets that were sent OutTimeStamps Snmp Simple Network Management Protocol Snmp Fields in the Snmp Display Snmp display Snmp Community Example Snmp communitySets two Snmp community strings read-only and read-write Fields in the Snmp Trap Display Snmp trap display Snmp trap addModify Snmp Trap addModify Example Snmp trap remove Removes all Snmp trap reporting destinations Snmp trap flush Fddi station statistics Snmp trapSmtProxyTraps TransmitAndReceive Setting Allows or disallows Snmp write requests Snmp writeDisable Ethernet Ports Fiber Distributed Data Interface Fddi Page This chapter shows whether your system supports the command Configure Ethernet ports in your system Ethernet summary Fields in the Ethernet Summary Display 3500 To display summary information about Ethernet ports, enterVendorName Ethernet detail AlignmentErrs Fields in the Ethernet Detail DisplayControl value Config-error.The value on-lineappears when the port 3900 Bytes Layer 2, 9300 9400 PaceAccessIs both enabled and connected to a cable. The value Partitioned appears when the port has been disabled by RxInternalErrs Error during receptionStation was last initialized This port to a higher-level protocol or application Frames not transmitted successfully Error during transmissionFrom this port by a higher-level protocol or application Autonegotiation Want to enable or disableDisable Ethernet portMode Selected Earlier in this 100half Section 100BASE-FX Off RxOn TxOn Setting Each of the ports that you SelectedEthernet flowControl Available on Flow Control SettingsSetting Description Port Type That you selected Ethernet paceAccess Ethernet paceInteractiveAccess Ethernet label Ethernet portState Valid Minimum Abbreviation Important Consideration Ethernet monitoring mode Fiber Distributed Data Interface Fddi Fields in the Fddi Station Display Fddi station display Bit to Set for Rejecting a Station Connection Connecting to a Port M Port B has precedence with defaults forWith defaults for connecting to a Port M Management CFM. In a single MAC node Fddi station tNotify All Enabled Fields in the Fddi Path Display Fddi path displayDisplays Fddi path information Fddi path tvxLowerBound Fddi path tmaxLowerBound Microseconds Ring’s operational token Rotation time, TOpr Fddi path maxTreq Fields in the Fddi MAC Summary Display Fddi mac summary Fields in the Fddi MAC Detail Display Fddi mac detail Higher-level protocol or application Or application. Does not include frames that were notReceived into receive buffers, such as missed frames This MAC can support Enabled or the Fddi ring was not operationalHas expired TvxValue Modules All Fddi mac notCopiedThreshold Fddi mac llcService Sets the path assignment for MACs Fddi mac path Fddi port display Error estimateFields in the Fddi Port Display LctFailCount Fddi port lerAlarm Fddi port lerCutoff Identification Fddi port label Fddi port path Fddi port numbers change, depending on Fields in the Fddi Station Mode DisplayStationMode To a specific port Changes to take effect You want the stationMode Fiber Distributed Data Interface Fddi Bridge-Wide Parameters Bridge Port Parameters Bridging ParametersPage BRIDGE-WIDE Parameters Valid Minimum Abbreviation Fields in the Bridge Display Bridge display Assigned to it by the root bridge. The default value is Configuration messages when the bridge is the rootTo discard the stored configuration message when it is Seconds. To configure the bridge maximum age, see Later in this chapter. STP is also configured on a StpState Whether the Spanning Tree Protocol is enabled orBy the root bridge. Compare with the bridgeMaxAge Field Bridged to Ethernet Enabled enabled Disabled Ipx Versa from Fddi to Ethernet OptionsSnapTranslation Snap Translation when Ethernet and Fddi links Bridge addressThreshold Bridge agingTime To disable 300 10 1,000,000 secondsAging time Maximum period Dynamically learned Removed StpState Disabled Default, or Current value EnabledDisabled Default, or Current value Bridge spanningTree stpPriority Bridge spanningTree stpMaxAge Bridge spanningTree stpHelloTime Bridge spanningTree stpForwardDelay Bridge spanningTree stpGroupAddress Gvrp state Enable Disabled For the entire bridgeBridge gvrpState Bridge cos enable Fields in the Bridge CoS Summary Display Bridge cos summary Bridge cos modify Function to operate Fields in the Bridge Multicast Igmp Summary DisplayIgmp query source IP Address Messages if it is elected as the Igmp querier Bridge multicast igmp snoopMode Bridge multicast igmp queryMode Bridge multicast igmp queryIpAddress 3500 9000 Fields in the Bridge Multicast Igmp Groups Display For which you are Valid Vlan ID 1 Default Vlan VID Multicast routers ID number of the VlanPorts that lead to IP Bridge multicast igmp qPort Bridge Port Parameters Fields in the Bridge Port Summary Display Bridge port summary For example, when you define a trunk, only the anchor Port number depending on your system configurationDisabled for the bridge Disabled Management has disabled the port or Enabled STP sets the operating state of the port Enabled, the port STP configuration options areTopology characteristics. This is the default Configuration for all ports Fields in the Bridge Port Detail Display Bridge port detail Designated port when more than one bridge port is To configure port priority values, see bridge portRxErrorDiscs StpCost in this chapter RxMcastLimitType Option, see bridge port multicastLimit in this chapterPort multicastLimit in this chapter RxNoDestDiscs Forwards all frames. To configure STP on a port, see If bridge-wide STP is disabled, this port STP setting isLearning Similar to listening, but the bridge Meaningless as long as its link state is up, the port For a protocol that the local bridging function is TxFrames Number of frames that this port transmitted to itsProcessing includes bridge management frames TxMcastFilters Broadcasts only McastBcast Multicasts BcastOnly Bridge port stpState Enabled Enabled factory DisabledSTP state Specified ports Bridge port stpCost Po stpp Bridge port gvrpState Valid bridge Port numbers All ? to display a Port summary Vlan Bridge port address add MAC address that you want to Valid MAC Address Remove Removes individual MAC addresses from the address table Bridge port address find Bridge port address flushAll Bridge port address flushDynamic Trunks Trunks Fields in the Bridge Trunk autoMap Summary Display Bridge trunk autoMap enable/disable Bridge trunk autoMap test You can select all or one trunk Fields in the Bridge Trunk Detail Display Bridge trunk detail Whether Tcmp is enabled or disabled for the trunk Bridge trunk define 1000BASE-SX ? for a list of selectable Media types Than one FastEthernet GigabitEthernet 10/100BASE-TX Part of the trunk Ports that you want to be Flow Trunk configurationTrunk Control Message Following functions Example shows a define operation that creates two trunks Bridge Trunk Define Example Changes a trunk in either of two ways Bridge trunk modify Bridge trunk modify Ports Deactivation of trunk Enabled Disabled Factory Default, or Current Fast Ethernet, Gigabit Ethernet, or Fddi Bridge Trunk Modify Example Bridge trunk remove Bridge Trunk Remove Example Trunks Mpla State Port on the other peer switch in the Mpla core Peer Switch InterfaceBridge mpla summary Describes the state of the multipoint aggregated link Fields in the Bridge Mpla Detail Display Bridge mpla detail Use only CoreBuilder 9400 systems as Mpla core switches SwitchUse only Switch 3900 devices as edge switches Switch, for added bandwidth Bridge mpla mode Input format for this MAC address is 9000 Resilient Links Pair Fields in the Bridge Link Summary Display Fields in the Bridge Link Detail Display Bridge link detail Bridge link define Bridge link define Index Link that you want to modify LinkState Bridge link linkStateResilient link Valid Minimum Abbreviation Options Bridge link activePort Bridge link modify Defined resilient link Character string that has Embedded spaces Main port Bridge Link Remove Example Removing a link requires that you reboot the systemBridge link remove Virtual Lans Vlans Valid Minimum Abbreviations Bridge vlan summary You specify Fields in the Bridge Vlan Summary DisplayIndex System-assigned index number that identifies a Vlan By using the bridge vlan define command Static The Vlan was created statically user-configuredInterface using the ip interface define command with System in allClosed mode Bridge vlan detail VLAN. The default Vlan always uses the name Field Description Ignore STP modeFields in the Bridge Vlan Detail Display Statistics appear for the Vlan that you specify Define command User-configured by using the bridge vlanCreate a router port IP interface using the ip Interface define command with the interface Nor can you change the VID of the default VLAN. AllClosed modeDefault Vlan requires a VID Compatibility mode for VLANs configured prior to Bridge vlan define 3500/9000 Layer Virtual Lans Vlans Used by management If the defaultOperations Vlan exists Vines DECnet 802.1Q Up to 32 Ascii Characters or Spaces Yes LayerNone Bridge Vlan Define Example 9000 Layer IP Vlan Bridge Vlan Define Example 3500 9000 9400 3900 9300 Configure the per-port tagging Bridge Vlan Define Example 9000 Layer Bridge vlan modify 3500/9000 Layer Selectable Vlan If you have That identifies a Vlan Index Vlan interface index Protocol suite CommandsApple for AppleTalk Unspecified Bridge Vlan Modify Example 9000 Layer Bridge Vlan Modify Example Bridge vlan modify 3900/9300/9400/ 9000 Layer Up to 32 Ascii Current Characters or Name Spaces Are available to Be assigned to Vlan AllYes Tag type Vlan name Bridge Vlan Modify Example 9000 Layer Deletes a Vlan definition Bridge vlan removeBridge Vlan Remove Example Interface Is associated with the Vlan Index Continue Select a Vlan mode as follows Bridge vlan mode Bridge vlan stpMode Bridge Vlan STP Mode Example Bridge vlan vlanAwareMode Bridge Vlan Aware Mode Example Virtual Lans Vlans Packet Filters Packet Filters Bridge Packet Filter List Example Lists the currently defined packet filters Sample Bridge Packet Filter Display Displays the contents of the specified packet filter This example shows the user creating the portGroup filter Bridge Packet Filter Create Port Group Example Creates a custom packet filter using the built-in editor Create Custom Bridge Packet Filter Example Bridge Packet Filter Delete Examples Deletes the selected packet filter Modifies an existing packet filter using the built-in editor Store as New Filter Example Replace Existing Filter Example Syntax of the EME download command is Prompt Description Bridge Packet Filter Load ExampleCurrent IP Name last CB9000 connect User next connects to the module and loads the filter Bridge packetFilter assign Select paths Identifier Path to which you Bridge Packet Filter Assign ExamplesTxA TxM Unassigns selected packet filter from one or more ports Unassignment is from the transmit all txA paths on port Bridge Packet Filter Unassign Examples Bridge Packet Filter Port Group List Example Select port Displays a port groupSample Bridge Packet Filter Port Group Display 3500 9000 Bridge Packet Filter Port Group Create Example Bridge Packet Filter Port Group Delete Example PortGroup delete Deletes a selected port group Bridge Packet Filter Port Group Add Port Examples Adds ports to an existing port group Displaying port group 2 shows that port 6 is removed Removes ports from a port groupBridge Packet Filter Port Group Remove Port Examples AppleTalk IP MulticastPage Internet Protocol IP Internet Protocol IP 397 Ip interface summary Fields in the IP Interface Summary Display Disabled for the specified interface. a directed Host portion of the address is enabled orIp interface detail Fields in the IP Interface Detail Display Preference level Preference Whether there is a preference being used forAs the network number, the subnetwork number, To a 0 is in the host part of the IP address IP Interface Detail Example Defines an IP interface From the range of addresses that Range IP address IP address of the interface, chosenAddresses that Index for IP Interface Define Example VLAN-based Routing IP Interface Define Example Port-based Routing 3900/9300/9400 Defines an IP interfaceLayer IP Interface Define Example Vlan index Value Ip interface modify Removes an IP interface from the system’s routing table Ip interface remove Ip interface arpProxy IP Interface ARP Proxy Example More than one interface IP interfaces Index number Interfaces to which you IP Interface Directed Broadcast Example Ip interface icmpRedirect Frame Disabled Current ValueNot applicable if you have Icmp redirect Whether you want to State Icmp router discovery can be set on a per-interface basis Holdtime Advertisements are held valid Hex Bit signed 231to Twos-complement integer that1800 IP Interface Icmp Router Discovery Example Fields in the IP Interface Statistics Display Ip interface statisticsDisplays IP interface statistics on a per-interface basis Or both Than Options 3500 only Ip route display Fields in the IP Route Display 3500 9000 9400 3900 9300 Ip route r Deletes all learned routes from the routing table Ip route flush Ip route default Ip route n Ip route findRoute Fields in the IP ARP Display Ip arp display IP ARP Static Example Ip arp remove Ip arp flushAll Ip arp flushDynamic Ip ar a Ip arp statistics Resolution Protocol ARP event occursSystem supports baselining for ARP statistics Fields in the IP ARP Statistics Display Was down ResolutionARP request ARP reply Fields in the IP DNS Display Ip dns display Or current name Changes the name of a currently defined domainCharacters long Valid domain name Index number to modify or remove this IP address Like the following Modifies a currently defined name server IP address Ip dns modifyName server IP Address that you Selectable server Index number ? for a list Indexes Deletes a previously defined name server IP addressWant to remove Ip dns nslookup Fields in the IP udpHelper Display Ip udpHelper display Ip udpHelper define Deletion Ip udpHelper remove Ip udpHelper hopCountLimit By default, there is no threshold Ip udpHelper interface first Ip udpHelper interface even Interfaces sequentially Ip udpHelperInterface sequential By default, IP routing is disabled on the system Ip rip display State as off. Other modes are learn default 9000 only By default, enabled RIP-1 ModeFields in the IP RIP Display 9000 only Ip rip mode Advertise Current Only Value Enabled 3500 only IP RIP Mode ExampleNot Handles RIP 2 packets Updates Disabled Learn Factory Compatibility Compatibility mode that Mode Compatibility modeHandles RIP-2 updates IP interfaces Index number of the interfaces On a per-interface basis, sets the RIP cost Enabled Value Enables or disables RIP Poison Reverse mode on the systemIp rip poisonReverse Selected interface Mode On the selected interface All Sent during a RIP Version 2 updateDisabled Enabled Current value Collapse route table entries for all subnets of a directly IP RIP Password Example Ip rip password Adds an advertisement address to an IP RIP interface Valid IP address Address List of advertisement addresses Ip rip remove Advertisement Displays summary information about RIP routing policies Ip rip policy summaryRoute policies are classified as follows Fields in the IP RIP Policy Summary Display Displays detailed information about RIP routing policies Ip rip policy detailFields in the IP RIP Policy Detail Display All interfaces Defines an import or export route policy for RIP Ip rip policy define + add Subtract 0.0 All Source Route Router Address/mask Action Description RIP Import Policy Conditions for Specified Interfaces Example of Import Policy RIP Export Policy Conditions for Specified InterfacesExample of Export Policy Source Protocol Router Action Description Modifies an existing route policy for RIP Ip rip policy modifyProtocols Static route for export policies Export Only All Values associated with the route Deletes a previously defined route policy Ip rip policy remove Fields in the IP RIP Statistics Display Ip ping IP Ping Example Ip advancedPing Enabled Seconds Yes Selectable Interface index Router Enabled DisabledSystem displays a period . upon Receiving an Icmp echo replay IP Advanced Ping Example Ip traceRoute IP Trace Route Example 4096 Bytes Yes From which the probe packetsDefined on the system Disabled Enabled Numeric mode Whether the system shows hopIP Advanced Trace Route Example TTL value Their indexes Fields in the IP Statistics Display Valid Minimum Abbreviation ip sta Options OutDatagrams Number of UDP packets that the router sent Fields in the UDP Statistics DisplayFields in the Icmp Statistics Display Number of Icmp time stamp reply packets Vrrp Fields in the IP Vrrp Summary Display Ip vrrp summary Sample IP Vrrp Summary Display Fields in the IP Vrrp Detail Display Master, Backup, or Initialize state IpTtlErrors Total number of Vrrp advertisements with IP TTL Auth Whether the Vrrp router uses simple passwordTo the Master state Vlan consider the Master down if two advertisement Type Type of virtual router primary or backup VersionErrors Stopped participating in VRRP. Used to trigger backupPriorityZeroTx That this virtual router has sent. The priority of zero Sample IP Vrrp Detail Display IpTtlErrors Defines a virtual router on the system Ip vrrp define Define the virtual Backup Index number of an IP Virtual LAN Vlan that Priority master IP Vrrp Define Example Modifies an existing virtual router Ip vrrp modify Router Indexes Backup Auto-learn Vrid Vidx IP Vrrp Modify Example IP Vrrp Remove Example Ip vrrp remove IP Vrrp Mode Example Enables or disables a configured virtual routerVirtual router identifier Identifies the virtual router Ip vrrp neighbor Master or Backup routerDisplays a list of neighboring virtual routers Fields in the IP Vrrp Neighbor Display Displays general Vrrp statistics for the virtual router VriderrorsFields in the IP Vrrp Statistics Display Number that this virtual router has received Virtual Router Redundancy Vrrp IP Multicast IP Multicast Fields in the IP Multicast Dvmrp Interface Summary Display Fields in the IP Multicast Dvmrp Interface Detail Display Multicast Routing ProtocolNon-querier The interface is not functioning as Non-leaf The interface is a branch in the IP Ip multicast dvmrp interface mode Routing interface for Modify the default Ip multicast dvmrp tunnels summary Fields in the IP Multicast Dvmrp Tunnels Summary Display Ip multicast dvmrp tunnels define Remote Interface Index number Interface on which youAddress Multicast tunnel end Point. Use standard Valid IP interface on a different system and subnetwork Deletes a Dvmrp tunnel end point from the system Ip multicast dvmrp tunnels address TTL threshold Valid Minimum ConfigurationPrompt Definition Possible Values Default Modifies the metric or cost of an existing Dvmrp tunnel Fields in the IP Multicast Dvmrp Route Display Fields in the IP Multicast Dvmrp Cache Display Listed on the left When there are no outgoing interfaces and whenRouting interface index number. a T precedes a tunnel After the index number indicates that a prune Function is activated and these values represent the cost As the Igmp querier, this field shows Self Summarizes key information about Igmp interfacesFields in the IP Multicast Igmp Interface Summary Display Fields in the IP Multicast Igmp Interface Detail Display Interface detailPort information Ip multicast igmp interface TTL Your selection applies to all interfaces in the system Disabled Or current valueReact to Igmp Packets and set Candidate for Query modeCan offer itself as a Ip multicast cache Fields in the IP Multicast Cache Display Multicast group address Ospf Open Shortest Path First Ospf Fields in the IP Ospf Areas Display Ip ospf areas displayDisplays a list of existing Ospf areas Area ID must be unique for the autonomous system Backbone area 0.0.0.0 is configured by defaultYes Factory Default, or Current value Description Possible Values Default 3500 9000 9400 3900 9300 On address Variable, based on You want to add to the areaRange class Whether to advertise area Yes Range Variable, based on Current value Mask You want to modify IP Ospf Areas Modify Range Example Ip ospf areas removeRange By default, the default route metric is not defined Default routerField in the IP Ospf Default Route Metric Display It entails more hops or less bandwidth Route metric With the default route Defines the default route metric for the router 3500 9000 9400 3900 9300 Fields in the IP Ospf Interface Summary Display Fields in the IP Ospf Interface Detail Display IP interface of the backup designated router BDRAreaID Ospf area to which the interface belongs Ospf information is displayed BDR Router is the backup designated router on This router is not the designated router or backupDesignated router Attached network Fields in the IP Ospf Interface Statistics Display MismatchDead On the interface are configured with a different deadInterval than this router. This prevents the router from Becoming a neighbor with these other routers When an Ospf Hello packet is received that has the same When an Ospf Hello packet is received and the packetWhen an Ospf database descriptor packet is received When processing an LSR packet, if the area is not When an Ospf database descriptor packet is transmitted Network whose configuration has not changed couldProblems When an Ospf Hello, LSU, or LSAck is being sent as a Enables or disables Ospf on specified IP interfaces One or more All factory Assigns interface priority to the Ospf router Associates an interface with an Ospf area Assigns a cost to an Ospf interface Transmit Delay in seconds that you Sets the Ospf interface transmit delay Sets the interface Hello interval Ip ospf interface hello Ip ospf interface retransmit Specifies the dead interval for an interface Ip ospf interface deadThey determine that Transmitting router is inactive All ? for a list Selectable Indexes Up to eight Sets password security for an Ospf interfaceAscii characters Default, or Ip ospf linkStateData databaseSummary Lsid Fields in the IP Ospf Link State Data Router Display Metric Cost of the link Router ID Originating router ID Stub Net Network IP address maskID number of the router that originated the LSA Fields in the IP Ospf Link State Data Network Display Summary LSA information For which you want to viewLink State ID For type 3 summary LSAs Type 3 Destination network’s IP address Fields in the IP Ospf Link State Data Summary DisplayType 4 ASBR’s Ospf router ID Metric Cost to reach the network Network mask For IP network number Fields in the IP Ospf Link State Data External Display Init Have recently seen Hello packet from neighbor Data received from neighbor will attempt to contactTwo-way Bidirectional communication has been Established Adds a neighbor static IP address to an existing interface Ip ospf neighbors add 3500 9000 9400 3900 9300 Sets the Ospf router ID IP Ospf Router ID Example Address Type IP Ospf Router ID Example Interface Type Means that Ospf has been set to use the default memory Partition at the next rebootMaximum size of the IP routing table at the next reboot Specific maximum partition size at the next reboot There are three choices for memory allocation Modifies the maximum memory that Ospf can allocate Field in the IP Ospf Stub Default Metric Display By default, the stub default metric is not defined Ip ospf stubDefaultMetric define Ip ospf stubDefaultMetric remove Fields in the IP Ospf Virtual Links Summary Display Update packet over the virtual link Fields in the IP Ospf Virtual Links Detail Display Displays detailed information about a virtual link Fields in the IP Ospf Virtual Links Neighbor Display Is not supported in the current implementation Ospf routers are being discarded due to authenticationFields in the IP Ospf Virtual Links Statistics Display Down and reestablished When an Ospf Hello packet is received and the packet ReceiveLSU Creates a new virtual link to a destination router Description Possible Values Default To reach the target router 3500 9000 9400 3900 9300 Sets the virtual link transmit delay, in seconds Sets the virtual link Hello interval, in seconds Ip ospf virtualLinks retransmit Sets the virtual link dead interval, in seconds Password Sets password security for a virtual link Fields in the IP Ospf Policy Summary Display Fields in the IP Ospf Policy Detail Display Type 1 as default. Only applicable to export policiesIp ospf policy detail Field Description Defines import and export Ospf routing policies Ip ospf policy define Protocols From which protocol the route Originated Import Policy type Type of policy OriginExport Direct Sta static Rip Route Address/mask Action Description Ospf Import Policy Conditions Protocol Interface Action Description Ospf Export Policy ConditionsExport Policy Conditions for Direct Routes Example of Export Policy for a Directly Connected Interface Modifies an existing Ospf routing policy Ip ospf policy modify Policy action Accept or reject the route Valid IP PolicySta static rip Value ASE, defined as AS external advertisementWithout options Value Type Type Value Routers Specified routers IP Ospf Policy Modify Example Deletes Ospf routing policies Ip ospf policy remove Fields in the IP Ospf Statistics Display Ip ospf statisticsDisplays general Ospf statistics Open Shortest Path First Ospf IPX Display define modify remove SAPadvertising RIPadvertising Ipx interface display IPX interface. When the system prompts youFields in the IPX Interface Display For this option, the menu identifies the available Defines an IPX interface Ipx interface define IPX Interface Define Example Ipx interface modify Changes the characteristics of an existing IPX interface 802.3/SNAP Available with 802.2, SNAP,EthernetII 802.2 Format 802.2 LLC RAW802.3 Ipx i r Controls whether the system advertises IPX services Controls whether the system advertises IPX routes 0x0 0xffffffff Range You want to display routes Ipx route displayStart Time the router sent a packet Fields in the IPX Route DisplayPackets to the segment. a node address of all Zeroes 00-00-00-00-00-00 means that Fields in the IPX Secondary Route Display Ipx route secondaryDisplays any secondary routes that are available Node address in the format Ipx route static IPX Static Route Example IPX network Byte IPX network address 0x1 0xfffffffe Address Ipx route removeDeletes a route from the IPX routing table Ipx route flush Ipx server display Fields in the IPX Server Display Service typeTime a server in the table sent a packet Server. The maximum number is Interface index Interface index number for Defines a static IPX server IPX Static Server Example ? for a list of selectable names 0x1 0xffff Service name Service name of the server Service typeDeletes a server from the IPX server table Ipx server flush Fields in the IPX Secondary Server Display Ipx server secondaryDisplays any secondary servers that are available Controls whether the system forwards or discards IPX packets Ipx forwarding Passive The system processes all incoming RIP packets Triggered RIP updatesRIP allows the exchange of routing information on a NetWare Ipx rip triggered 3500 9000 9400 3900 9300 Define a RIP Routing Information Protocol policy Ipx rip policy define IPX RIP Policy Define Example Static All Ipx rip policy modifyModify an existing RIP Routing Information Protocol policy Subtract\ Multiply Divide Adjust the metric value, ThisIPX RIP Policy Modify Example If only one policy Ipx rip policy removeRemove an existing RIP Routing Information Protocol policy Ipx sap mode Ipx sa t Fields in an IPX SAP Policy Summary Display Or Export apply the policy to advertised servicesName Object name that assigned to the server Type All routes Fields in an IPX SAP Policy Detail Display Ipx sap policy define Define a SAP Service Advertising Protocol policy0x0098 Parameter is valid only if Policy Type is set to Export All Enter up to 6 hex characters Match the same service. a IPX SAP Policy Define Example Ipx sap policy modify Modify a SAP Service Advertising Protocol policy 00-00-00-00-00-00 IPX SAP Policy Modify Example Remove an existing SAP Service Advertising Protocol policy Ipx output-delay Applications that were dropped Displays IPX summary statisticsFields in the IPX Statistics Summary Display Fields in the IPX RIP Statistics Display Ipx statistics ripDisplays IPX RIP Routing Information Protocol statistics Ipx statistics sap Displays IPX SAP Service Advertising Protocol statisticsFields in the IPX SAP Statistics Display Been processed Fields in the IPX Forwarding Statistics Display Displays IPX forwarding statistics IPX route is unknown No Routes Fields in the IPX Interface Statistics Display Ipx statistics interfaceDisplays IPX interface statistics Field Description Ipx oddLengthPadding Valid Minimum Abbreviation ipx n Options IPX NetBIOS Example IPX Secondary Example Ipx secondary IPX Appletalk Appletalk With the AppleTalk interface Displays summary information for all AppleTalk interfacesFields in the AppleTalk Interface Summary Display Fields in the AppleTalk Interface Detail Display Displays detailed information for all AppleTalk interfaces Interface. Seed interfaces only Defines an AppleTalk interface Zone name AppleTalk zone that is Zone name. Seed interfaces Only Interface n Modifies an existing AppleTalk interface New AppleTalk interface Vlan interface index, itThat you can associate with a Removes an existing AppleTalk interface Fields in the AppleTalk Interface Statistics Display RtmpOutDataPkts NbpInLookupReqsRtmpRouteDeletes Aged out of the table Fields in the AppleTalk Route Display Appletalk route flush Fields in the AppleTalk Aarp Display Appletalk aarp remove 9300Important Consideration Appletalk zone display network Displays the AppleTalk Zone table indexed by zones Appletalk forwarding Verification checksum from the incoming data and compares AppleTalk protocol uses checksums to detect errors in dataAppletalk checksum Appletalk sourceSocket To test for network connectivity Address Appletalk pingDestination AppleTalk node that you want Fields in the AppleTalk DDP Statistics Display Fields in the AppleTalk Rtmp Statistics Display Fields in the AppleTalk ZIP Statistics Display Displays AppleTalk Zone Information Protocol ZIP statistics Fields in the AppleTalk NBP Statistics Display Any errorDisplays AppleTalk Name Binding Protocol NBP statistics VII Quality of Service QoS and RsvpPage Rsvp Quality of Service QOS and Rsvp Fields in the QoS Classifier Summary Display Are predefined Qos classifier detailFields in the QoS Classifier Detail Display Protocol UDP port range Flow classifiers only Classifier Installed Classifier can have only one control applied to it Qos classifier defineDefines a flow or nonflow classifier Classifier Number of the flow Up to 0.0 Factory DefaultFlow or nonflow Classifier End value Source IP For flow classifiers Up to four portions 0.0Ethertype Protocol type Classifiers with Custom Custom protocol Nonflow Type Classifiers only Custom Hex values for Protocol Flow Classifier Procedure Quality of Service QOS and Rsvp QoS Classifier Define Example Flow Classifier QoS Classifier Define Example Nonflow Classifier Nonflow Classifier Procedure Modifies a previously defined classifier Qos classifier modify 255.255.255.255 Factory Match, or Procedure Flow Classifier Quality of Service QOS and Rsvp QoS Classifier Modify Example Flow Classifier QoS Classifier Remove Example Removes a previously defined classifier Fields in the QoS Control Summary Display Displays summary information about QoS controls Limit Rate limit in KBytes/sec or percentage Loss eligible Fields in the QoS Control Detail DisplayPacket can be dropped if the transmit queue for which it is Destined is over its threshold Type Rate limit type, none no rate limit, receivePort, or So forth Defines a control for one or more existing classifiers Qos control define Service level Service level for Default/Best Effort forReceivePort Default Aggregate For rate limit Control name Name that you assign to Control Used so that drop packets Enabled Enabled backplane portsHow rate limit Is expressed Specific Weekdays Starting time hhmm Ending time hhmm Weekends Input Time Type OptionsInput Time Type Options You can apply aggregate rate limits only to flow classifiers Quality of Service QOS and Rsvp QoS Control Define Example Enter the classifiers that are subject to this control Limit without affecting the other defined rate limits Qos control modifySelect Service level for excess Service level Service level for Conforming packetsSpecified for That are associated with For flow or nonflow You want to enableNone ? for a list of selectable values TCP drop For a control Procedure Quality of Service QOS and Rsvp ReceivePort QoS Control Modify Example QoS Control Remove Example 9000 Layer Removes a previously defined control Fields in the QoS Ldap Display Qos ldap display Qos ldap enable Disabled Removes the connection to Ldap server Qos ldap disable Fields in the QoS Rsvp Summary Display Qos rsvp summaryPerformed policing for that flow. Options are edge, always Total resv Fields in the QoS Rsvp Detail Display Displays detailed Rsvp information when Rsvp is enabledQos rsvp detail Enables Rsvp on the system Rsvp settings that you specify Qos rsvp enableAlways Default Never Maximum total Qos rsvp enable Disables Rsvp on the system Qos bandwidth display Link When you enter the command, the system prompts you to enterSent only when no high priority packets need to be sent With a special Ieee 802.1p tag value Qos excessTaggingDisplay Ieee 802.1p Tag value to use to tag or retag Excess packets Qos excessTagging enable Qos excessTagging disable Sets a sampling interval for gathering QoS statistics Seconds Factory Default, orZero value shows byte or packet counters Interval Interval, in seconds, during Fields in the QoS Receive Statistics Display Displays QoS receive statisticsBridge ports Port numbers whose receive One or more Port numbers All Peak count The highest number of conforming nonflow Displays QoS transmit statistics Fields in the QoS Transmit Statistics Display Field Description Quality of Service QOS and Rsvp Roving Analysis ViiiPage Event LOG Event LOG Supported Event Log Services Log display Displays the current log settingsFields in the Log Display Severity Levels ? for a list of valid severity levels Yes Log Devices ExamplesLevels for To disable the config and info severity levels Or disabled Services/levels To enable all severity levels for the AppleTalk service Log Services Examples Event LOG Roving Analysis Roving Analysis Analyzer Display Example Analyzer displayFields in the Analyzer Display 3500 Analyzer Add Example 9000 1000BASE-SX module Analyzer Remove Example Analyzer remove Starts port monitoring activity on the selected bridge port Analyzer start Analyzer Start Example 9000 1000BASE-SX module Analyzer Stop Example Analyzer stopStops port monitoring activity on the selected bridge port Roving Analysis Appendix a Technical Support Page 3Com Services Username anonymous Access by Analog ModemHours a day, 7 days a week Country Data Rate Telephone Number 408 727 Access by Digital Modem847 262 NET 3Com 800 638 Europe, South Africa, and Middle East 800 638 Not toll-free Country Telephone Number Fax Number Appendix a Technical Support ? character 473 SymbolsNumbers Commands 150 system menu 203 Pace Access Errors Routing interface218 Port duplex mode 212 Port flow control 215 Protocol Dynamic versus static Vlan origin 345 Fddi MAC Fax service 3ComFacts Switch Log, event 747 Logout 264 LER Link Error Rate Alarm value 242 LerCutoff638 SAP policy Define 642 Detail Removing 159 management ip rip Packet size advancedPing 475 advancedTraceRoute IPX Displaying configurations 712 SMT Station Management LerAlarm value715 116 to 101, 135 System reboot 123 570 QoS Quality of Service interval forIcmp Internet Control Message Protocol 483 418 IPX forwarding Access 71 Sample definition 311 Setting Ignore STP mode348 Updates RIP triggered 631 639 Zones 677 URL User configuration information