Manuals / 3Com / Computer Equipment / Switch

3Com 3500 manual Internet Protocol IP

Models: 3500

1 784

Download 784 pages 37.06 Kb

Page 395

16

INTERNET PROTOCOL (IP)

To route packets using the Internet Protocol (IP), you:

■Establish an IP routing interface

■Decide which IP options and routing protocols you want to use

■Enable IP routing

An IP routing interface defines the relationship between an IP virtual LAN (VLAN) and the subnetworks in the IP network. Each routing IP VLAN interface is associated with one VLAN that supports IP. The system has one interface defined for each subnet that is directly connected to it.

You can also choose between two different routing models when you establish an IP routing interface:

■VLAN-based routing

Because bridging is faster in normal circumstances, the system first tries to determine if it can bridge the frame before routing it.

■Router port-based routing

The system first tries to route packets that belong to recognized protocols, and then bridges all other packets. If the network or a portion of the network is devoted to routing IP frames, this model makes network traffic more efficient.

This chapter provides guidelines and other key information about how to configure IP in your system. This chapter addresses the commands in the ip menu except for multicast and ospf, which other chapters in this Command Reference Guide explain.

For information about IP multicast, see Chapter 18. For information about Open Shortest Path First (OSPF) routing using IP, see Chapter 19.

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

Image 395

3Com 3500 manual Internet Protocol IP

Contents

Command Reference Guide 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Contents System serialPort serialPortMode System console security accessSystem console timeout timeOut System serialPort terminalSpeedModule baseline display System nvData resetSystem sntp display System sntp removeManagement ip advancedPing Management ip rip statisticsPart IV Physical Port Parameters Ethernet paceAccessBridge cos summary Part V Bridging ParametersVirtual Lans Vlans Ip interface icmpRouterDiscovery Bridge packetFilter unassignIp arp display Ip multicast cache Ip vrrp statisticsIp multicast dvmrp tunnels summary Ip multicast igmp interface summaryIp ospf virtualLinks statistics Ip ospf linkStateData summaryIpx rip policy summary Ipx server staticAppletalk sourceSocket Ipx statistics summaryIpx statistics sap Appletalk interface summaryQos classifier detail Qos rsvp enableQos classifier summary Analyzer display 3Com Knowledgebase Web ServicesPage Platform Release CoreBuilder SuperStack II SwitchPlatforms Covered in This Document Information about troubleshooting and networking tasks, see About command syntax, field descriptions, default values,Help you to understand the commands Material about why or when to use a particular command. ForFinding Specific Information in This Guide Short description of the purpose of the command Command description begins at the top of a page. a commandFull command name Platforms on which this command is validIcon Description Recommendations For Entering CommandsThroughout this guide Convention Description Document title Include the following information when commentingDocumentation more useful to you Please send e-mail comments about this guide toAbout this Guide Administration Overview Command Summary Page Accessing the Administration Console Administration Console OverviewCoreBuilder 9000 Management Features Configuration TasksUse the Administration Console to manage the CoreBuilder Management Controller EMC functions, such as login tableManagement features Administration ConsoleSee 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 AccessSystem displays a prompt similar to the following All modules use subslotAdminister Access Example Read Access Example Write Access ExampleLayer 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 StringEntering 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 Module display Module redundancy reset NonRedundant module nameScript logout Ch 4 Module EnvironmentManagement 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 VLANsPart VI Routing Protocols Ch 16 IP Command Summary Ch 17 Vrrp Ip rip password Ip rip addAdvertisementIp multicast traceRoute Ch 18 IP MulticastIp ospf areas display Ch 19 OspfCommand Summary Ipx server secondary Ch 20 IPXIpx 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 Fields in the System Display System displayValid Minimum Abbreviation Important ConsiderationFile transfer File transfer protocol for Prompt Description Possible Values DefaultSystem fileTransfer OptionsInstallation Are located Enter Web URL where the Web HelpSy co w Options System console consoleAccess System console ctlKeys Logging on to the system Access levelPassword Important ConsiderationsMost terminal screens are 24 lines high Trusted IP address IP address of the trusted IP client Mask Displays a summary of trusted IP client informationFields in the System Console Security Display Not a trusted clientSystem console security define Specified IP IP address IP address of the interfaceChosen from the range All Client ? for a list of selectable indexes Trusted IPClient index To removeSystem console security access Network Current deny messageSystem console timeout timeOut Telnet Timeout interval Minutes Interval System snapshot summary System snapshot detail 3900 9300 Tftp ProcedureFTP Procedure 3500 Only Host IP Loads a new revision of system softwareSy b d System baseline set Resets the baseline counters to zeroRequestedState Valid Minimum Abbreviation System baseline Enables or disables a baselineTerminal Procedure Local ConnectionEnter the terminal speed setting for the terminal port Procedure IP InterfaceSystem serialPort modemSpeed New value Sets the baud rate of your system serial portSystem serialPort baudRate Procedures Procedure Sy se e System name If you enter n, you are returned to the Time menu Mean TimeDst If you enter y to the prompt, a sub-menu appears that User specified option for start and end datesFormat Description System time datetime Sets the system’s date and timeTime zone Index That you want to configureSystem time timezone 14 GMT+100 CET/FWT/MET/MEWT/SWT System Time Timezone ExampleEnter a daylight saving time option System time dst Sets daylight savings timeFormat for option 5 is ccyy-mm-ssThhmmss Important Considerations Tftp System nvData savePrevious IP Important Consideration FTP and TftpOptionally, enter a label for the file Example System nvData save Continue? You may not want to rebootSystem reboots after each ResetIf you enter y, the system displays the following messages For exampleSy nv e So the system reboots after System nvData resetDo you wish Confirmation of the reset Continue? To reboot because resettingSystem clearDiagBlock System diagErrLog Fields in the System Sntp Display Field Description Configuration InformationSystem sntp display Displays Simple Network Time Protocol Sntp informationValid 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 Disabled3600 Request poll Seconds, the poll intervalLocal 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 Port Gigabit Switching Fabric This module 3C numberModule display Fields in the Module DisplayDetail display images You use the snapshot featureModule snapshot SummaryModule snapshot detail Displays when the current baseline was last set Module baseline set Enables or disables a baseline Module redundancy Possible Prompt Description Values DefaultMo nam Module Time Example Most terminal screens are 24 lines Do you wish Confirmation prompt Module nvData resetNecessary after each reset PromptsPerforms an emergency download Displays emergency download information for your module Module nvData staging 3500 9000 9400 Module diagErrLog Reboots the specified module Module rebootYou from a Telnet session Enterprise Management Engine EME moduleEstablishing Management III Access Page OUT-OF-BAND Management OUT-OF-BAND Management Fields in the Management Summary Display Values are ignored That sets the port mode on Ethernet ports that have portMode options. If autonegotiation is enabled, port mode ReqPortModeFields in the Management Detail Display Management detailMacAddress MAC address of this port MultiCollisions Default is enabledPort was disabled LateCollisionsPort during the most recent sampling period. Sampling Periods are 1 second long not configurableRxUnicasts To a higher-level protocol or applicationFields in the Management IP Interface Summary Display Interface, chosen from Range of addresses that IP address IP address of the out-of-bandCommand 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 routeIp 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 tableFields 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 Fields in the Management IP RIP Display Index Index number of the interface RIP-1 modeDefault, advertise, and enabled RIP-2 modeWhich you want to set the RIP RIP modeLearn Current Value Advertise Enabled IP interfacesManagement IP RIP Mode Example Fields in the Management IP RIP Statistics Display Displays general RIP statisticsManagement ip ping To interrupt the command, press EnterManagement IP Ping Example Management ip advancedPing Period . upon receiving an Icmp Enabled, the system displaysDisabled, the system displays Disabled disabled Enabled Time betweenManagement IP Advanced Ping Example Ip t Ip traceRoute Management IP Trace Route ExampleWait 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 DisplayOutTimeStamps OutAddrMasksSent Number of Icmp time stamp reply packets that were sentSnmp Simple Network Management Protocol Snmp Fields in the Snmp Display Snmp displaySnmp Community Example Snmp communitySets two Snmp community strings read-only and read-write Fields in the Snmp Trap Display Snmp trap displaySnmp trap addModify Snmp Trap addModify Example Snmp trap remove Removes all Snmp trap reporting destinations Snmp trap flushFddi station statistics Snmp trapSmtProxyTraps TransmitAndReceive Setting Allows or disallows Snmp write requests Snmp writeDisableEthernet Ports Fiber Distributed Data Interface Fddi Page This chapter shows whether your system supports the command Configure Ethernet ports in your systemEthernet 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 Partitioned appears when the port has been disabled by 3900 Bytes Layer 2, 9300 9400 PaceAccessConfig-error.The value on-lineappears when the port Is both enabled and connected to a cable. The valueThis port to a higher-level protocol or application Error during receptionRxInternalErrs Station was last initializedFrames 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 paceAccessEthernet 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 displayBit to Set for Rejecting a Station Connection Management CFM. In a single MAC node Port B has precedence with defaults forConnecting to a Port M With defaults for connecting to a Port MFddi 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 maxTreqFields in the Fddi MAC Summary Display Fddi mac summaryFields in the Fddi MAC Detail Display Fddi mac detailHigher-level protocol or application Or application. Does not include frames that were notReceived into receive buffers, such as missed frames TvxValue Enabled or the Fddi ring was not operationalThis MAC can support Has expiredModules All Fddi mac notCopiedThreshold Fddi mac llcService Sets the path assignment for MACs Fddi mac pathLctFailCount Error estimateFddi port display Fields in the Fddi Port DisplayFddi port lerAlarm Fddi port lerCutoff Identification Fddi port labelFddi port path To a specific port Fields in the Fddi Station Mode DisplayFddi port numbers change, depending on StationModeChanges to take effect You want the stationModeFiber Distributed Data Interface Fddi Bridge-Wide Parameters Bridge Port Parameters Bridging ParametersPage BRIDGE-WIDE Parameters Valid Minimum Abbreviation Fields in the Bridge Display Bridge displaySeconds. To configure the bridge maximum age, see Configuration messages when the bridge is the rootAssigned to it by the root bridge. The default value is To discard the stored configuration message when it isField StpState Whether the Spanning Tree Protocol is enabled orLater in this chapter. STP is also configured on a By the root bridge. Compare with the bridgeMaxAgeBridged to Ethernet Enabled enabled DisabledEthernet and Fddi links Versa from Fddi to Ethernet OptionsIpx SnapTranslation Snap Translation whenBridge addressThreshold Dynamically learned To disable 300 10 1,000,000 secondsBridge agingTime Aging time Maximum periodRemoved 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 summaryBridge cos modify Address Messages if it is elected as the Igmp querier Fields in the Bridge Multicast Igmp Summary DisplayFunction to operate Igmp query source IPBridge 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 VIDMulticast 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 summaryDisabled Management has disabled the port or Port number depending on your system configurationFor example, when you define a trunk, only the anchor Disabled for the bridgeConfiguration for all ports Enabled, the port STP configuration options areEnabled STP sets the operating state of the port Topology characteristics. This is the defaultFields in the Bridge Port Detail Display Bridge port detailStpCost in this chapter To configure port priority values, see bridge portDesignated port when more than one bridge port is RxErrorDiscsRxNoDestDiscs Option, see bridge port multicastLimit in this chapterRxMcastLimitType Port multicastLimit in this chapterMeaningless as long as its link state is up, the port If bridge-wide STP is disabled, this port STP setting isForwards all frames. To configure STP on a port, see Learning Similar to listening, but the bridgeTxMcastFilters TxFrames Number of frames that this port transmitted to itsFor a protocol that the local bridging function is Processing includes bridge management framesBroadcasts only McastBcast Multicasts BcastOnlySpecified ports Enabled Enabled factory DisabledBridge port stpState STP stateBridge port stpCost Po stpp Bridge port gvrpState Valid bridge Port numbers All ? to display a Port summary VlanBridge port address add MAC address that you want to Valid MAC Address Remove Removes individual MAC addresses from the address tableBridge 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 detailWhether 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-TXPart of the trunk Ports that you want to beFollowing functions Trunk configurationFlow Trunk Control MessageExample shows a define operation that creates two trunks Bridge Trunk Define ExampleChanges a trunk in either of two ways Bridge trunk modifyBridge trunk modify Ports Deactivation of trunk Enabled Disabled Factory Default, or CurrentFast Ethernet, Gigabit Ethernet, or Fddi Bridge Trunk Modify Example Bridge trunk remove Bridge Trunk Remove Example Trunks Mpla Describes the state of the multipoint aggregated link Peer Switch InterfaceState Port on the other peer switch in the Mpla core Bridge mpla summaryFields in the Bridge Mpla Detail Display Bridge mpla detailSwitch, for added bandwidth SwitchUse only CoreBuilder 9400 systems as Mpla core switches Use only Switch 3900 devices as edge switchesBridge mpla mode Input format for this MAC address is 9000Resilient Links Pair Fields in the Bridge Link Summary DisplayFields in the Bridge Link Detail Display Bridge link detailBridge link define Bridge link define Index Link that you want to modify LinkState Bridge link linkStateResilient link Valid Minimum Abbreviation Options Bridge link activePortBridge link modify Defined resilient link Character string that has Embedded spaces Main portBridge Link Remove Example Removing a link requires that you reboot the systemBridge link remove Virtual Lans Vlans Valid Minimum Abbreviations Bridge vlan summaryYou specify Fields in the Bridge Vlan Summary DisplayIndex System-assigned index number that identifies a Vlan System in allClosed mode Static The Vlan was created statically user-configuredBy using the bridge vlan define command Interface using the ip interface define command withBridge vlan detail Statistics appear for the Vlan that you specify Field Description Ignore STP modeVLAN. The default Vlan always uses the name Fields in the Bridge Vlan Detail DisplayInterface define command with the interface User-configured by using the bridge vlanDefine command Create a router port IP interface using the ipCompatibility mode for VLANs configured prior to AllClosed modeNor can you change the VID of the default VLAN. Default Vlan requires a VIDBridge vlan define 3500/9000 Layer Virtual Lans Vlans Vlan exists If the defaultUsed by management OperationsVines DECnet802.1Q Up to 32 Ascii Characters or Spaces Yes LayerNone Bridge Vlan Define Example 9000 Layer IP VlanBridge 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 indexUnspecified CommandsProtocol suite Apple for AppleTalkBridge 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 Interface Is associated with the Vlan Index Continue Bridge vlan removeDeletes a Vlan definition Bridge Vlan Remove ExampleSelect a Vlan mode as follows Bridge vlan modeBridge vlan stpMode Bridge Vlan STP Mode ExampleBridge vlan vlanAwareMode Bridge Vlan Aware Mode Example Virtual Lans Vlans Packet Filters Packet Filters Bridge Packet Filter List Example Lists the currently defined packet filtersSample Bridge Packet Filter Display Displays the contents of the specified packet filterThis example shows the user creating the portGroup filter Bridge Packet Filter Create Port Group ExampleCreates a custom packet filter using the built-in editor Create Custom Bridge Packet Filter Example Bridge Packet Filter Delete Examples Deletes the selected packet filterModifies an existing packet filter using the built-in editor Store as New Filter Example Replace Existing Filter ExampleSyntax of the EME download command is Name last Bridge Packet Filter Load ExamplePrompt Description Current IPCB9000 connect User next connects to the module and loads the filterBridge packetFilter assign TxM Bridge Packet Filter Assign ExamplesSelect paths Identifier Path to which you TxAUnassigns selected packet filter from one or more ports Unassignment is from the transmit all txA paths on port Bridge Packet Filter Unassign ExamplesBridge 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 groupBridge Packet Filter Port Group Add Port Examples Adds ports to an existing port groupDisplaying 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 Fields in the IP Interface Detail Display Host portion of the address is enabled orDisabled for the specified interface. a directed Ip interface detailTo a 0 is in the host part of the IP address Preference Whether there is a preference being used forPreference level As the network number, the subnetwork number,IP Interface Detail Example Defines an IP interface Index for IP address IP address of the interface, chosenFrom the range of addresses that Range Addresses thatIP Interface Define Example VLAN-based Routing IP Interface Define Example Port-based RoutingIP Interface Define Example Defines an IP interface3900/9300/9400 LayerVlan index Value Ip interface modifyRemoves an IP interface from the system’s routing table Ip interface removeIp interface arpProxy IP Interface ARP Proxy Example More than one interface IP interfaces Index number Interfaces to which youIP Interface Directed Broadcast Example Ip interface icmpRedirect Icmp redirect Whether you want to State Disabled Current ValueFrame Not applicable if you haveIcmp 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 ThanOptions 3500 only Ip route displayFields in the IP Route Display 3500 9000 9400 3900 9300 Ip route r Deletes all learned routes from the routing table Ip route flushIp route default Ip route n Ip route findRoute Fields in the IP ARP Display Ip arp displayIP ARP Static Example Ip arp remove Ip arp flushAll Ip arp flushDynamic Ip ar a Fields in the IP ARP Statistics Display Resolution Protocol ARP event occursIp arp statistics System supports baselining for ARP statisticsARP reply ResolutionWas down ARP requestFields in the IP DNS Display Ip dns displayOr 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 followingAddress that you Ip dns modifyModifies a currently defined name server IP address Name server IPSelectable 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 displayIp udpHelper define Deletion Ip udpHelper removeIp 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 9000 only 9000 only By default, enabled RIP-1 ModeState as off. Other modes are learn default Fields in the IP RIP DisplayIp rip mode Advertise Current Only Value Enabled 3500 only IP RIP Mode ExampleNot Handles RIP 2 packets Updates Disabled Learn Factory IP interfaces Index number of the interfaces Compatibility modeCompatibility Compatibility mode that Mode Handles RIP-2 updatesOn a per-interface basis, sets the RIP cost Selected interface Enables or disables RIP Poison Reverse mode on the systemEnabled Value Ip rip poisonReverseCollapse route table entries for all subnets of a directly Sent during a RIP Version 2 updateMode On the selected interface All Disabled Enabled Current valueIP RIP Password Example Ip rip passwordAdds an advertisement address to an IP RIP interface Valid IP address Address List of advertisement addresses Ip rip remove Advertisement Fields in the IP RIP Policy Summary Display Ip rip policy summaryDisplays summary information about RIP routing policies Route policies are classified as followsAll interfaces Ip rip policy detailDisplays detailed information about RIP routing policies Fields in the IP RIP Policy Detail DisplayDefines an import or export route policy for RIP Ip rip policy define+ add Subtract 0.0 AllSource Route Router Address/mask Action Description RIP Import Policy Conditions for Specified InterfacesSource Protocol Router Action Description RIP Export Policy Conditions for Specified InterfacesExample of Import Policy Example of Export PolicyExport Only All Ip rip policy modifyModifies an existing route policy for RIP Protocols Static route for export policiesValues associated with the route Deletes a previously defined route policy Ip rip policy removeFields in the IP RIP Statistics Display Ip ping IP Ping Example Ip advancedPing Receiving an Icmp echo replay Enabled DisabledEnabled Seconds Yes Selectable Interface index Router System displays a period . uponIP Advanced Ping Example Ip traceRoute IP Trace Route Example 4096 Bytes Yes From which the probe packetsDefined on the system Their indexes Numeric mode Whether the system shows hopDisabled Enabled IP Advanced Trace Route Example TTL valueFields in the IP Statistics Display Valid Minimum Abbreviation ip sta OptionsOutDatagrams 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 summarySample IP Vrrp Summary Display Fields in the IP Vrrp Detail Display Master, Backup, or Initialize stateVlan consider the Master down if two advertisement Auth Whether the Vrrp router uses simple passwordIpTtlErrors Total number of Vrrp advertisements with IP TTL To the Master stateThat this virtual router has sent. The priority of zero Stopped participating in VRRP. Used to trigger backupType Type of virtual router primary or backup VersionErrors PriorityZeroTxSample IP Vrrp Detail Display IpTtlErrorsDefines a virtual router on the system Ip vrrp defineDefine the virtual Backup Index number of an IP Virtual LAN Vlan thatPriority master IP Vrrp Define ExampleModifies an existing virtual router Ip vrrp modifyRouter Indexes Backup Auto-learnVrid Vidx IP Vrrp Modify ExampleIP Vrrp Remove Example Ip vrrp removeIdentifies the virtual router Enables or disables a configured virtual routerIP Vrrp Mode Example Virtual router identifierFields in the IP Vrrp Neighbor Display Master or Backup routerIp vrrp neighbor Displays a list of neighboring virtual routersNumber that this virtual router has received VriderrorsDisplays general Vrrp statistics for the virtual router Fields in the IP Vrrp Statistics DisplayVirtual Router Redundancy Vrrp IP Multicast IP Multicast Fields in the IP Multicast Dvmrp Interface Summary Display Non-leaf The interface is a branch in the IP Multicast Routing ProtocolFields in the IP Multicast Dvmrp Interface Detail Display Non-querier The interface is not functioning asIp multicast dvmrp interface mode Routing interface for Modify the defaultIp multicast dvmrp tunnels summary Fields in the IP Multicast Dvmrp Tunnels Summary Display Ip multicast dvmrp tunnels define Valid IP interface on a different system and subnetwork Interface Index number Interface on which youRemote Address Multicast tunnel end Point. Use standardDeletes 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 After the index number indicates that a prune When there are no outgoing interfaces and whenListed on the left Routing interface index number. a T precedes a tunnelFunction 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 Packets and set Disabled Or current valueYour selection applies to all interfaces in the system React to IgmpCandidate 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 Whether to advertise area Yes Range Variable, based on You want to add to the areaOn address Range classVariable, based on Current value Mask You want to modify IP Ospf Areas Modify Range ExampleIp ospf areas removeRange It entails more hops or less bandwidth Default routerBy default, the default route metric is not defined Field in the IP Ospf Default Route Metric DisplayRoute metric With the default route Defines the default route metric for the router3500 9000 9400 3900 9300 Fields in the IP Ospf Interface Summary Display Ospf information is displayed IP interface of the backup designated router BDRFields in the IP Ospf Interface Detail Display AreaID Ospf area to which the interface belongsAttached network This router is not the designated router or backupBDR Router is the backup designated router on Designated routerFields in the IP Ospf Interface Statistics Display Becoming a neighbor with these other routers On the interface are configured with a different deadMismatchDead Interval than this router. This prevents the router fromWhen processing an LSR packet, if the area is not When an Ospf Hello packet is received and the packetWhen an Ospf Hello packet is received that has the same When an Ospf database descriptor packet is receivedWhen an Ospf Hello, LSU, or LSAck is being sent as a Network whose configuration has not changed couldWhen an Ospf database descriptor packet is transmitted ProblemsEnables or disables Ospf on specified IP interfaces One or more All factory Assigns interface priority to the Ospf routerAssociates an interface with an Ospf area Assigns a cost to an Ospf interface Transmit Delay in seconds that you Sets the Ospf interface transmit delaySets the interface Hello interval Ip ospf interface helloIp ospf interface retransmit Transmitting router is inactive Ip ospf interface deadSpecifies the dead interval for an interface They determine thatAll ? 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 DisplayMetric 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 For type 3 summary LSAs For which you want to viewSummary LSA information Link State IDMetric Cost to reach the network Network mask For Fields in the IP Ospf Link State Data Summary DisplayType 3 Destination network’s IP address Type 4 ASBR’s Ospf router IDIP network number Fields in the IP Ospf Link State Data External DisplayEstablished Data received from neighbor will attempt to contactInit Have recently seen Hello packet from neighbor Two-way Bidirectional communication has beenAdds a neighbor static IP address to an existing interface Ip ospf neighbors add3500 9000 9400 3900 9300 Sets the Ospf router ID IP Ospf Router ID Example Address Type IP Ospf Router ID Example Interface TypeSpecific maximum partition size at the next reboot Partition at the next rebootMeans that Ospf has been set to use the default memory Maximum size of the IP routing table at the next rebootThere are three choices for memory allocation Modifies the maximum memory that Ospf can allocateField in the IP Ospf Stub Default Metric Display By default, the stub default metric is not definedIp ospf stubDefaultMetric define Ip ospf stubDefaultMetric remove Fields in the IP Ospf Virtual Links Summary Display Update packet over the virtual linkFields in the IP Ospf Virtual Links Detail Display Displays detailed information about a virtual linkFields 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 defineSta static Rip Policy type Type of policy OriginProtocols From which protocol the route Originated Import Export DirectRoute Address/mask Action Description Ospf Import Policy ConditionsProtocol 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 modifyPolicy action Accept or reject the route Valid IP PolicySta static rip Value Type Value AS external advertisementASE, defined as Without options Value TypeRouters Specified routers IP Ospf Policy Modify ExampleDeletes Ospf routing policies Ip ospf policy removeFields in the IP Ospf Statistics Display Ip ospf statisticsDisplays general Ospf statistics Open Shortest Path First Ospf IPX Display define modify remove SAPadvertising RIPadvertising For this option, the menu identifies the available IPX interface. When the system prompts youIpx interface display Fields in the IPX Interface DisplayDefines an IPX interface Ipx interface defineIPX Interface Define Example Ipx interface modify Changes the characteristics of an existing IPX interface802.2 Format 802.2 LLC RAW802.3 Available with 802.2, SNAP,802.3/SNAP EthernetIIIpx 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 Zeroes 00-00-00-00-00-00 means that Fields in the IPX Route DisplayTime the router sent a packet Packets to the segment. a node address of allFields in the IPX Secondary Route Display Ipx route secondaryDisplays any secondary routes that are available Node address in the format Ipx route staticIPX 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 Server. The maximum number is Service typeFields in the IPX Server Display Time a server in the table sent a packetInterface index Interface index number for Defines a static IPX serverIPX 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 forwardingPassive 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 defineIPX 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 All routes Or Export apply the policy to advertised servicesFields in an IPX SAP Policy Summary Display Name Object name that assigned to the server TypeFields in an IPX SAP Policy Detail Display Parameter is valid only if Policy Type is set to Export All Define a SAP Service Advertising Protocol policyIpx sap policy define 0x0098Enter up to 6 hex characters Match the same service. aIPX SAP Policy Define Example Ipx sap policy modify Modify a SAP Service Advertising Protocol policy00-00-00-00-00-00 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 Been processed Displays IPX SAP Service Advertising Protocol statisticsIpx statistics sap Fields in the IPX SAP Statistics DisplayFields in the IPX Forwarding Statistics Display Displays IPX forwarding statisticsIPX route is unknown No RoutesFields in the IPX Interface Statistics Display Ipx statistics interfaceDisplays IPX interface statistics Field Description Ipx oddLengthPadding Valid Minimum Abbreviation ipx n Options IPX NetBIOS ExampleIPX Secondary Example Ipx secondaryIPX 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 interfacesInterface. Seed interfaces only Defines an AppleTalk interfaceZone name AppleTalk zone that is Zone name. Seed interfaces OnlyInterface n Modifies an existing AppleTalk interfaceNew AppleTalk interface Vlan interface index, itThat you can associate with a Removes an existing AppleTalk interface Fields in the AppleTalk Interface Statistics Display Aged out of the table NbpInLookupReqsRtmpOutDataPkts RtmpRouteDeletesFields 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 statisticsFields 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 InstalledClassifier can have only one control applied to it Qos classifier defineDefines a flow or nonflow classifier Classifier Up to 0.0 Factory DefaultClassifier Number of the flow Flow or nonflowCustom Custom protocol Nonflow Type Classifiers only Source IP For flow classifiers Up to four portions 0.0End value Ethertype Protocol type Classifiers withCustom Hex values for Protocol Flow Classifier ProcedureQuality of Service QOS and Rsvp QoS Classifier Define Example Flow Classifier QoS Classifier Define Example Nonflow Classifier Nonflow Classifier ProcedureModifies a previously defined classifier Qos classifier modify255.255.255.255 Factory Match, orProcedure Flow Classifier Quality of Service QOS and Rsvp QoS Classifier Modify Example Flow Classifier QoS Classifier Remove Example Removes a previously defined classifierFields in the QoS Control Summary Display Displays summary information about QoS controlsDestined is over its threshold Fields in the QoS Control Detail DisplayLimit Rate limit in KBytes/sec or percentage Loss eligible Packet can be dropped if the transmit queue for which it isType Rate limit type, none no rate limit, receivePort, or So forthDefines a control for one or more existing classifiers Qos control defineControl name Name that you assign to Default/Best Effort forService level Service level for ReceivePort Default Aggregate For rate limitIs expressed Enabled backplane portsControl Used so that drop packets Enabled How rate limitSpecific 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 controlLimit without affecting the other defined rate limits Qos control modifySelect That are associated with Service level Service level for Conforming packetsService level for excess Specified forFor a control You want to enableFor flow or nonflow None ? for a list of selectable values TCP dropProcedure Quality of Service QOS and Rsvp ReceivePort QoS Control Modify ExampleQoS Control Remove Example 9000 Layer Removes a previously defined controlFields in the QoS Ldap Display Qos ldap displayQos ldap enable Disabled Removes the connection to Ldap server Qos ldap disableTotal resv Qos rsvp summaryFields in the QoS Rsvp Summary Display Performed policing for that flow. Options are edge, alwaysFields in the QoS Rsvp Detail Display Displays detailed Rsvp information when Rsvp is enabledQos rsvp detail Maximum total Qos rsvp enableEnables Rsvp on the system Rsvp settings that you specify Always Default NeverQos 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 enableQos excessTagging disable Interval Interval, in seconds, during Seconds Factory Default, orSets a sampling interval for gathering QoS statistics Zero value shows byte or packet countersOne or more Port numbers All Displays QoS receive statisticsFields in the QoS Receive Statistics Display Bridge ports Port numbers whose receivePeak 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 Severity Levels Log display Displays the current log settingsSupported Event Log Services Fields in the Log Display? for a list of valid severity levels Yes Log Devices ExamplesLevels for To disable the config and info severity levels Or disabled Services/levelsTo enable all severity levels for the AppleTalk service Log Services ExamplesEvent 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 removeStarts port monitoring activity on the selected bridge port Analyzer startAnalyzer 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 ServicesCountry Data Rate Telephone Number Access by Analog ModemUsername anonymous Hours a day, 7 days a week408 727 Access by Digital Modem847 262 NET 3Com 800 638 Europe, South Africa, and Middle East800 638 Not toll-free Country Telephone Number Fax NumberAppendix a Technical Support ? character 473 SymbolsNumbers Commands 150 system menu Protocol Dynamic versus static Vlan origin 345 Errors Routing interface203 Pace Access 218 Port duplex mode 212 Port flow control 215Fddi MAC Fax service 3ComFactsSAP policy Define 642 Detail 264 LER Link Error Rate Alarm value 242 LerCutoffSwitch Log, event 747 Logout 638Removing 159 management ip rip Packet size advancedPing 475 advancedTraceRoute IPX 116 to 712 SMT Station Management LerAlarm valueDisplaying configurations 715418 IPX forwarding 570 QoS Quality of Service interval for101, 135 System reboot 123 Icmp Internet Control Message Protocol 483639 Zones 677 URL User configuration information Sample definition 311 Setting Ignore STP modeAccess 71 348 Updates RIP triggered 631