Ip udpHelper display | 3Com 3500 specification

442CHAPTER 16: INTERNET PROTOCOL (IP)

ip udpHelper display

✓3500

✓9000

9400

3900

9300

For CoreBuilder 9000: Applies to Layer 3 switching modules only.

Displays the BOOTP (bootstrap protocol) hop count and the threshold configuration. Also lists the ports with their IP forwarding addresses that are defined in your system.

Valid Minimum Abbreviation

ip u di

Important Considerations

■With UDP Helper, you can send User Datagram Protocol (UDP) packets between routed networks. UDP Helper provides support for UDP services such as BOOTP and DHCP (Dynamic Host Configuration Protocol), which rely on the BOOTP relay agent.

■When you configure the logical BOOTP port, you can boot hosts through the router. UDP Helper also provides a relay agent for DHCP broadcasts. UDP packets that rely on the BOOTP relay agent are modified and then forwarded through the router.

■BOOTP (including DHCP) uses UDP port 67.

■With UDP Helper, you can configure the amount of time that a UDP packet is forwarded between subnetworks. The system discards UDP packets based on the hop count and the seconds value only for BOOTP and DHCP.

Fields in the IP udpHelper Display

Field	Description

UDP port	UDP port number — usually the value 67
Forwarding address	Forwarding address that is used for UDP packets

Image 442

3Com 3500 manual Ip udpHelper display, Fields in the IP udpHelper Display

Contents

Command Reference Guide 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Contents System serialPort terminalSpeed System console security accessSystem console timeout timeOut System serialPort serialPortMode System sntp remove System nvData resetSystem sntp display Module baseline display Management ip rip statistics Management ip advancedPing Ethernet paceAccess Part IV Physical Port Parameters Part V Bridging Parameters Bridge cos summary Virtual Lans Vlans Bridge packetFilter unassign Ip interface icmpRouterDiscovery Ip arp display Ip multicast igmp interface summary Ip vrrp statisticsIp multicast dvmrp tunnels summary Ip multicast cache Ip ospf linkStateData summary Ip ospf virtualLinks statistics Ipx server static Ipx rip policy summary Appletalk interface summary Ipx statistics summaryIpx statistics sap Appletalk sourceSocket Qos classifier summary Qos rsvp enableQos classifier detail 3Com Knowledgebase Web Services Analyzer displayPage Platforms Covered in This Document CoreBuilder SuperStack II SwitchPlatform Release Material about why or when to use a particular command. For About command syntax, field descriptions, default values,Help you to understand the commands Information about troubleshooting and networking tasks, see Finding Specific Information in This Guide Platforms on which this command is valid Command description begins at the top of a page. a commandFull command name Short description of the purpose of the command Throughout this guide Recommendations For Entering CommandsIcon Description Convention Description Please send e-mail comments about this guide to Include the following information when commentingDocumentation more useful to you Document title About this Guide Administration Overview Command Summary Page Configuration Tasks Administration Console OverviewCoreBuilder 9000 Management Features Accessing the Administration Console Administration Console Management Controller EMC functions, such as login tableManagement features Use the Administration Console to manage the CoreBuilder See the Web Management User Guide for the CoreBuilder PSU EME Overview Intelligent Power Management Manages power useChassis Management Architecture Provides a cost-efficient Type Command Top-Level Menus Tasks Password Access Levels All modules use subslot System displays a prompt similar to the following Administer Access Example Write Access Example Read Access Example Your system supports the command Structure diagrams at the beginning of most chapters showLayer 2 switching module is installed Entering a Command String Menu options are not case sensitive To accept the default or current value, press Enter Entering Abbreviated CommandsEntering Values in Command Strings Enter q Command Summary Gives an overview of all the commands in this bookPart II System-Level Functions System Environment Command Summary Ch 4 Module Environment Module redundancy reset NonRedundant module nameScript logout Module display Management summary management detail management ip Part IV Physical Port Parameters Ch 7 Ethernet Ports Ch 6 SnmpEthernet summary Ethernet detail Ethernet autoNegotiation Fddi station display Ch 8 FddiFddi mac path fddi port display Bridge display Part V Bridging Parameters Ch 9 Bridge-wide ParametersBridge multicast igmp summary Ch 10 Bridge Ports Ch 12 MultiPoint Link Aggregation Ch 11 TrunksCh 13 Resilient Links Ch 14 Virtual LANs VLANs Ch 15 Packet Filters Part VI Routing Protocols Ch 16 IP Command Summary Ip rip password Ip rip addAdvertisement Ch 17 Vrrp Ch 18 IP Multicast Ip multicast traceRoute Ch 19 Ospf Ip ospf areas display Command Summary Ch 20 IPX Ipx server secondary Ipx sap triggered Ipx forwarding ipx rip mode ipx rip triggeredIpx secondary Ch 21 AppleTalk Part VII Traffic Policy Ch 22 Quality of Service and Rsvp Part Viii Monitoring Ch 23 Event Log Log display Log devices Log servicesCh 24 Roving Analysis Command Summary System Environment Module Environment Page System Environment System Environment Important Consideration System displayValid Minimum Abbreviation Fields in the System Display Options Prompt Description Possible Values DefaultSystem fileTransfer File transfer File transfer protocol for Enter Web URL where the Web Help Installation Are located Sy co w Options System console consoleAccess System console ctlKeys Important Considerations Access levelPassword Logging on to the system Most terminal screens are 24 lines high Not a trusted client Displays a summary of trusted IP client informationFields in the System Console Security Display Trusted IP address IP address of the trusted IP client Mask System console security define Chosen from the range IP address IP address of the interfaceSpecified IP To remove Trusted IPClient index All Client ? for a list of selectable indexes System console security access Current deny message Network System console timeout timeOut Telnet Timeout interval Minutes Interval System snapshot summary System snapshot detail Tftp Procedure 3900 9300 FTP Procedure 3500 Only Loads a new revision of system software Host IP Sy b d Resets the baseline counters to zero System baseline set System baseline Enables or disables a baseline RequestedState Valid Minimum Abbreviation Procedure Local Connection Terminal Procedure IP Interface Enter the terminal speed setting for the terminal port System serialPort modemSpeed Sets the baud rate of your system serial port New value System serialPort baudRate Procedures Procedure Sy se e System name User specified option for start and end dates Mean TimeDst If you enter y to the prompt, a sub-menu appears that If you enter n, you are returned to the Time menu System time datetime Sets the system’s date and time Format Description System time timezone Index That you want to configureTime zone System Time Timezone Example 14 GMT+100 CET/FWT/MET/MEWT/SWT Format for option 5 is ccyy-mm-ssThhmmss System time dst Sets daylight savings timeEnter a daylight saving time option System nvData save Important Considerations Tftp Optionally, enter a label for the file Example Important Consideration FTP and TftpPrevious IP System nvData save Reset You may not want to rebootSystem reboots after each Continue? For example If you enter y, the system displays the following messages Sy nv e Continue? To reboot because resetting System nvData resetDo you wish Confirmation of the reset So the system reboots after System clearDiagBlock System diagErrLog Displays Simple Network Time Protocol Sntp information Field Description Configuration InformationSystem sntp display Fields in the System Sntp Display Server’s IP System sntp defineValid IP address Address Sntp database Except System sntp modify System sntp remove Sntp state Whether you want to Disabled System sntp state Request poll Seconds, the poll interval 3600 Time Time threshold value, Seconds 900 Tolerance System sntp toleranceLocal system time Reboots the system System rebootReboot Confirmation that you want to System? Yes Valid Minimum Abbreviation Important Considerations Example Script Press Escape to return to the top level before you log out Module Environment Module Environment Fields in the Module Display Switching Fabric This module 3C numberModule display Port Gigabit Summary You use the snapshot featureModule snapshot Detail display images Module snapshot detail Displays when the current baseline was last set Module baseline set Enables or disables a baseline Possible Prompt Description Values Default Module redundancy Mo nam Module Time Example Most terminal screens are 24 lines Prompts Module nvData resetNecessary after each reset Do you wish Confirmation prompt Performs an emergency download Displays emergency download information for your module Module nvData staging 3500 9000 9400 Module diagErrLog Module reboot Reboots the specified module Enterprise Management Engine EME module You from a Telnet session Establishing Management III Access Page OUT-OF-BAND Management OUT-OF-BAND Management Fields in the Management Summary Display ReqPortMode That sets the port mode on Ethernet ports that have portMode options. If autonegotiation is enabled, port mode Values are ignored Management detail Fields in the Management Detail Display LateCollisions Default is enabledPort was disabled MacAddress MAC address of this port MultiCollisions To a higher-level protocol or application Periods are 1 second long not configurableRxUnicasts Port during the most recent sampling period. Sampling Fields in the Management IP Interface Summary Display IP address IP address of the out-of-band Interface, chosen from Range of addresses that Command Removes an IP management interface if you no longer need it Management ip route display Status for Routes Fields in the Management IP Route DisplayValue Description Defines a static route Deletes an existing route Destination IP Ip ro fl Adds a default route to the routing table immediately Deletes the default route Searches for a route in the routing table IP address or IP address that is Fields in the Management IP ARP Display You can define up to 128 static ARP entries Defines a static ARP cache entry on the systemManagement IP ARP Static Example Management ip arp remove Deletes all entries from the ARP cache Ip ar flushD RIP-2 mode Index Index number of the interface RIP-1 modeDefault, advertise, and enabled Fields in the Management IP RIP Display IP interfaces RIP modeLearn Current Value Advertise Enabled Which you want to set the RIP Management IP RIP Mode Example Displays general RIP statistics Fields in the Management IP RIP Statistics Display To interrupt the command, press Enter Management ip ping Management IP Ping Example Management ip advancedPing Disabled disabled Enabled Time between Enabled, the system displaysDisabled, the system displays Period . upon receiving an Icmp Management IP Advanced Ping Example Ip t Management IP Trace Route Example Ip traceRoute 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 UDP Statistics Display Fields in the Management Icmp Statistics Display Number of Icmp time stamp reply packets that were sent OutAddrMasksSent OutTimeStamps Snmp Simple Network Management Protocol Snmp Snmp display Fields in the Snmp Display Sets two Snmp community strings read-only and read-write Snmp communitySnmp Community Example Snmp trap display Fields in the Snmp Trap Display Snmp trap addModify Snmp Trap addModify Example Snmp trap remove Snmp trap flush Removes all Snmp trap reporting destinations SmtProxyTraps Snmp trapFddi station statistics TransmitAndReceive Setting Snmp writeDisable Allows or disallows Snmp write requests Ethernet Ports Fiber Distributed Data Interface Fddi Page Configure Ethernet ports in your system This chapter shows whether your system supports the command Ethernet summary Fields in the Ethernet Summary Display VendorName To display summary information about Ethernet ports, enter3500 Ethernet detail Control value Fields in the Ethernet Detail DisplayAlignmentErrs Is both enabled and connected to a cable. The value 3900 Bytes Layer 2, 9300 9400 PaceAccessConfig-error.The value on-lineappears when the port Partitioned appears when the port has been disabled by Station was last initialized Error during receptionRxInternalErrs This port to a higher-level protocol or application From this port by a higher-level protocol or application Error during transmissionFrames not transmitted successfully Disable Want to enable or disableAutonegotiation Ethernet portMode Selected Earlier in this 100half Section 100BASE-FX Ethernet flowControl Setting Each of the ports that you SelectedOff RxOn TxOn Setting Description Port Type Flow Control SettingsAvailable on Ethernet paceAccess That you selected Ethernet paceInteractiveAccess Ethernet label Ethernet portState Valid Minimum Abbreviation Important Consideration Ethernet monitoring mode Fiber Distributed Data Interface Fddi Fddi station display Fields in the Fddi Station Display Bit to Set for Rejecting a Station Connection With defaults for connecting to a Port M Port B has precedence with defaults forConnecting to a Port M Management CFM. In a single MAC node Fddi station tNotify All Enabled Displays Fddi path information Fddi path displayFields in the Fddi Path Display Fddi path tvxLowerBound Fddi path tmaxLowerBound Fddi path maxTreq Microseconds Ring’s operational token Rotation time, TOpr Fddi mac summary Fields in the Fddi MAC Summary Display Fddi mac detail Fields in the Fddi MAC Detail Display Received into receive buffers, such as missed frames Or application. Does not include frames that were notHigher-level protocol or application Has expired Enabled or the Fddi ring was not operationalThis MAC can support TvxValue Modules All Fddi mac notCopiedThreshold Fddi mac llcService Fddi mac path Sets the path assignment for MACs Fields in the Fddi Port Display Error estimateFddi port display LctFailCount Fddi port lerAlarm Fddi port lerCutoff Fddi port label Identification Fddi port path StationMode Fields in the Fddi Station Mode DisplayFddi port numbers change, depending on To a specific port You want the stationMode Changes to take effect Fiber Distributed Data Interface Fddi Bridging Parameters Bridge-Wide Parameters Bridge Port ParametersPage BRIDGE-WIDE Parameters Bridge display Valid Minimum Abbreviation Fields in the Bridge Display To discard the stored configuration message when it is Configuration messages when the bridge is the rootAssigned to it by the root bridge. The default value is Seconds. To configure the bridge maximum age, see By the root bridge. Compare with the bridgeMaxAge StpState Whether the Spanning Tree Protocol is enabled orLater in this chapter. STP is also configured on a Field Enabled enabled Disabled Bridged to Ethernet SnapTranslation Snap Translation when Versa from Fddi to Ethernet OptionsIpx Ethernet and Fddi links Bridge addressThreshold Aging time Maximum period To disable 300 10 1,000,000 secondsBridge agingTime Dynamically learned Removed Disabled Default, or Current value Disabled Default, or Current value EnabledStpState Bridge spanningTree stpPriority Bridge spanningTree stpMaxAge Bridge spanningTree stpHelloTime Bridge spanningTree stpForwardDelay Bridge spanningTree stpGroupAddress Bridge gvrpState Enable Disabled For the entire bridgeGvrp state Bridge cos enable Bridge cos summary Fields in the Bridge CoS Summary Display Bridge cos modify Igmp query source IP Fields in the Bridge Multicast Igmp Summary DisplayFunction to operate 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 Valid Vlan ID 1 Default Vlan VID For which you are Ports that lead to IP ID number of the VlanMulticast routers Bridge multicast igmp qPort Bridge Port Parameters Bridge port summary Fields in the Bridge Port Summary Display Disabled for the bridge Port number depending on your system configurationFor example, when you define a trunk, only the anchor Disabled Management has disabled the port or Topology characteristics. This is the default Enabled, the port STP configuration options areEnabled STP sets the operating state of the port Configuration for all ports Bridge port detail Fields in the Bridge Port Detail Display RxErrorDiscs To configure port priority values, see bridge portDesignated port when more than one bridge port is StpCost in this chapter Port multicastLimit in this chapter Option, see bridge port multicastLimit in this chapterRxMcastLimitType RxNoDestDiscs Learning Similar to listening, but the bridge If bridge-wide STP is disabled, this port STP setting isForwards all frames. To configure STP on a port, see Meaningless as long as its link state is up, the port Processing includes bridge management frames TxFrames Number of frames that this port transmitted to itsFor a protocol that the local bridging function is TxMcastFilters BcastOnly Broadcasts only McastBcast Multicasts STP state Enabled Enabled factory DisabledBridge port stpState Specified ports Bridge port stpCost Po stpp Bridge port gvrpState Vlan Valid bridge Port numbers All ? to display a Port summary Bridge port address add Removes individual MAC addresses from the address table MAC address that you want to Valid MAC Address Remove 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 Bridge trunk detail Fields in the Bridge Trunk Detail Display Whether Tcmp is enabled or disabled for the trunk Bridge trunk define Than one FastEthernet GigabitEthernet 10/100BASE-TX 1000BASE-SX ? for a list of selectable Media types Ports that you want to be Part of the trunk Trunk Control Message Trunk configurationFlow Following functions Bridge Trunk Define Example Example shows a define operation that creates two trunks Bridge trunk modify Changes a trunk in either of two ways Bridge trunk modify Ports Enabled Disabled Factory Default, or Current Deactivation of trunk Fast Ethernet, Gigabit Ethernet, or Fddi Bridge Trunk Modify Example Bridge trunk remove Bridge Trunk Remove Example Trunks Mpla Bridge mpla summary Peer Switch InterfaceState Port on the other peer switch in the Mpla core Describes the state of the multipoint aggregated link Bridge mpla detail Fields in the Bridge Mpla Detail Display Use only Switch 3900 devices as edge switches SwitchUse only CoreBuilder 9400 systems as Mpla core switches Switch, for added bandwidth Bridge mpla mode 9000 Input format for this MAC address is Resilient Links Fields in the Bridge Link Summary Display Pair Bridge link detail Fields in the Bridge Link Detail Display Bridge link define Bridge link define Resilient link Bridge link linkStateIndex Link that you want to modify LinkState Bridge link activePort Valid Minimum Abbreviation Options Bridge link modify Character string that has Embedded spaces Main port Defined resilient link Bridge link remove Removing a link requires that you reboot the systemBridge Link Remove Example Virtual Lans Vlans Bridge vlan summary Valid Minimum Abbreviations Index System-assigned index number that identifies a Vlan Fields in the Bridge Vlan Summary DisplayYou specify Interface using the ip interface define command with Static The Vlan was created statically user-configuredBy using the bridge vlan define command System in allClosed mode Bridge vlan detail Fields in the Bridge Vlan Detail Display Field Description Ignore STP modeVLAN. The default Vlan always uses the name Statistics appear for the Vlan that you specify Create a router port IP interface using the ip User-configured by using the bridge vlanDefine command Interface define command with the interface Default Vlan requires a VID AllClosed modeNor can you change the VID of the default VLAN. Compatibility mode for VLANs configured prior to Bridge vlan define 3500/9000 Layer Virtual Lans Vlans Operations If the defaultUsed by management Vlan exists DECnet Vines None Yes Layer802.1Q Up to 32 Ascii Characters or Spaces IP Vlan Bridge Vlan Define Example 9000 Layer 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 Vlan interface index Selectable Vlan If you have That identifies a Vlan Index Apple for AppleTalk CommandsProtocol suite Unspecified Bridge Vlan Modify Example 9000 Layer Bridge Vlan Modify Example Bridge vlan modify 3900/9300/9400/ 9000 Layer Yes Tag type Vlan name Are available to Be assigned to Vlan AllUp to 32 Ascii Current Characters or Name Spaces Bridge Vlan Modify Example 9000 Layer Bridge Vlan Remove Example Bridge vlan removeDeletes a Vlan definition Interface Is associated with the Vlan Index Continue Bridge vlan mode Select a Vlan mode as follows Bridge Vlan STP Mode Example Bridge vlan stpMode Bridge vlan vlanAwareMode Bridge Vlan Aware Mode Example Virtual Lans Vlans Packet Filters Packet Filters Lists the currently defined packet filters Bridge Packet Filter List Example Displays the contents of the specified packet filter Sample Bridge Packet Filter Display Bridge Packet Filter Create Port Group Example This example shows the user creating the portGroup filter Creates a custom packet filter using the built-in editor Create Custom Bridge Packet Filter Example Deletes the selected packet filter Bridge Packet Filter Delete Examples Modifies an existing packet filter using the built-in editor Replace Existing Filter Example Store as New Filter Example Syntax of the EME download command is Current IP Bridge Packet Filter Load ExamplePrompt Description Name last User next connects to the module and loads the filter CB9000 connect Bridge packetFilter assign TxA Bridge Packet Filter Assign ExamplesSelect paths Identifier Path to which you TxM Unassigns selected packet filter from one or more ports Bridge Packet Filter Unassign Examples Unassignment is from the transmit all txA paths on port Bridge Packet Filter Port Group List Example Sample Bridge Packet Filter Port Group Display Displays a port groupSelect port 3500 9000 Bridge Packet Filter Port Group Create Example PortGroup delete Deletes a selected port group Bridge Packet Filter Port Group Delete Example Adds ports to an existing port group Bridge Packet Filter Port Group Add Port Examples Bridge Packet Filter Port Group Remove Port Examples Removes ports from a port groupDisplaying port group 2 shows that port 6 is removed IP Multicast AppleTalkPage Internet Protocol IP Internet Protocol IP 397 Ip interface summary Fields in the IP Interface Summary Display Ip interface detail Host portion of the address is enabled orDisabled for the specified interface. a directed Fields in the IP Interface Detail Display As the network number, the subnetwork number, Preference Whether there is a preference being used forPreference level To a 0 is in the host part of the IP address IP Interface Detail Example Defines an IP interface Addresses that IP address IP address of the interface, chosenFrom the range of addresses that Range Index for IP Interface Define Example Port-based Routing IP Interface Define Example VLAN-based Routing Layer Defines an IP interface3900/9300/9400 IP Interface Define Example Ip interface modify Vlan index Value Ip interface remove Removes an IP interface from the system’s routing table Ip interface arpProxy IP Interface ARP Proxy Example IP interfaces Index number Interfaces to which you More than one interface IP Interface Directed Broadcast Example Ip interface icmpRedirect Not applicable if you have Disabled Current ValueFrame Icmp redirect Whether you want to State Icmp router discovery can be set on a per-interface basis 1800 Hex Bit signed 231to Twos-complement integer thatHoldtime Advertisements are held valid IP Interface Icmp Router Discovery Example Displays IP interface statistics on a per-interface basis Ip interface statisticsFields in the IP Interface Statistics Display Than Or both Ip route display Options 3500 only Fields in the IP Route Display 3500 9000 9400 3900 9300 Ip route r Ip route flush Deletes all learned routes from the routing table Ip route default Ip route n Ip route findRoute Ip arp display Fields in the IP ARP Display IP ARP Static Example Ip arp remove Ip arp flushAll Ip arp flushDynamic Ip ar a System supports baselining for ARP statistics Resolution Protocol ARP event occursIp arp statistics Fields in the IP ARP Statistics Display ARP request ResolutionWas down ARP reply Ip dns display Fields in the IP DNS Display Characters long Valid domain name Changes the name of a currently defined domainOr current name Like the following Index number to modify or remove this IP address Name server IP Ip dns modifyModifies a currently defined name server IP address Address that you Want to remove Deletes a previously defined name server IP addressSelectable server Index number ? for a list Indexes Ip dns nslookup Ip udpHelper display Fields in the IP udpHelper Display Ip udpHelper define Ip udpHelper remove Deletion Ip udpHelper hopCountLimit By default, there is no threshold Ip udpHelper interface first Ip udpHelper interface even Interface sequential Ip udpHelperInterfaces sequentially By default, IP routing is disabled on the system Ip rip display Fields in the IP RIP Display 9000 only By default, enabled RIP-1 ModeState as off. Other modes are learn default 9000 only Ip rip mode Not Handles RIP 2 packets Updates Disabled Learn Factory IP RIP Mode ExampleAdvertise Current Only Value Enabled 3500 only Handles RIP-2 updates Compatibility modeCompatibility Compatibility mode that Mode IP interfaces Index number of the interfaces On a per-interface basis, sets the RIP cost Ip rip poisonReverse Enables or disables RIP Poison Reverse mode on the systemEnabled Value Selected interface Disabled Enabled Current value Sent during a RIP Version 2 updateMode On the selected interface All Collapse route table entries for all subnets of a directly Ip rip password IP RIP Password Example Adds an advertisement address to an IP RIP interface Valid IP address Address List of advertisement addresses Ip rip remove Advertisement Route policies are classified as follows Ip rip policy summaryDisplays summary information about RIP routing policies Fields in the IP RIP Policy Summary Display Fields in the IP RIP Policy Detail Display Ip rip policy detailDisplays detailed information about RIP routing policies All interfaces Ip rip policy define Defines an import or export route policy for RIP 0.0 All + add Subtract RIP Import Policy Conditions for Specified Interfaces Source Route Router Address/mask Action Description Example of Export Policy RIP Export Policy Conditions for Specified InterfacesExample of Import Policy Source Protocol Router Action Description Protocols Static route for export policies Ip rip policy modifyModifies an existing route policy for RIP Export Only All Values associated with the route Ip rip policy remove Deletes a previously defined route policy Fields in the IP RIP Statistics Display Ip ping IP Ping Example Ip advancedPing System displays a period . upon Enabled DisabledEnabled Seconds Yes Selectable Interface index Router Receiving an Icmp echo replay IP Advanced Ping Example Ip traceRoute IP Trace Route Example Defined on the system From which the probe packets4096 Bytes Yes IP Advanced Trace Route Example TTL value Numeric mode Whether the system shows hopDisabled Enabled Their indexes Valid Minimum Abbreviation ip sta Options Fields in the IP Statistics Display Fields in the Icmp Statistics Display Fields in the UDP Statistics DisplayOutDatagrams Number of UDP packets that the router sent Number of Icmp time stamp reply packets Vrrp Ip vrrp summary Fields in the IP Vrrp Summary Display Sample IP Vrrp Summary Display Master, Backup, or Initialize state Fields in the IP Vrrp Detail Display To the Master state Auth Whether the Vrrp router uses simple passwordIpTtlErrors Total number of Vrrp advertisements with IP TTL Vlan consider the Master down if two advertisement PriorityZeroTx Stopped participating in VRRP. Used to trigger backupType Type of virtual router primary or backup VersionErrors That this virtual router has sent. The priority of zero IpTtlErrors Sample IP Vrrp Detail Display Ip vrrp define Defines a virtual router on the system Backup Index number of an IP Virtual LAN Vlan that Define the virtual IP Vrrp Define Example Priority master Ip vrrp modify Modifies an existing virtual router Backup Auto-learn Router Indexes IP Vrrp Modify Example Vrid Vidx Ip vrrp remove IP Vrrp Remove Example Virtual router identifier Enables or disables a configured virtual routerIP Vrrp Mode Example Identifies the virtual router Displays a list of neighboring virtual routers Master or Backup routerIp vrrp neighbor Fields in the IP Vrrp Neighbor Display Fields in the IP Vrrp Statistics Display VriderrorsDisplays general Vrrp statistics for the virtual router Number that this virtual router has received Virtual Router Redundancy Vrrp IP Multicast IP Multicast Fields in the IP Multicast Dvmrp Interface Summary Display Non-querier The interface is not functioning as Multicast Routing ProtocolFields in the IP Multicast Dvmrp Interface Detail Display Non-leaf The interface is a branch in the IP Ip multicast dvmrp interface mode Modify the default Routing interface for Ip multicast dvmrp tunnels summary Fields in the IP Multicast Dvmrp Tunnels Summary Display Ip multicast dvmrp tunnels define Address Multicast tunnel end Point. Use standard Interface Index number Interface on which youRemote Valid IP interface on a different system and subnetwork Deletes a Dvmrp tunnel end point from the system Ip multicast dvmrp tunnels address Prompt Definition Possible Values Default Valid Minimum ConfigurationTTL threshold 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 Routing interface index number. a T precedes a tunnel When there are no outgoing interfaces and whenListed on the left After the index number indicates that a prune Function is activated and these values represent the cost Fields in the IP Multicast Igmp Interface Summary Display Summarizes key information about Igmp interfacesAs the Igmp querier, this field shows Self Port information Interface detailFields in the IP Multicast Igmp Interface Detail Display Ip multicast igmp interface TTL React to Igmp Disabled Or current valueYour selection applies to all interfaces in the system Packets and set Can offer itself as a Query modeCandidate for Ip multicast cache Fields in the IP Multicast Cache Display Multicast group address Ospf Open Shortest Path First Ospf Displays a list of existing Ospf areas Ip ospf areas displayFields in the IP Ospf Areas Display Yes Factory Default, or Current value Backbone area 0.0.0.0 is configured by defaultArea ID must be unique for the autonomous system Description Possible Values Default 3500 9000 9400 3900 9300 Range class Variable, based on You want to add to the areaOn address Whether to advertise area Yes Range IP Ospf Areas Modify Range Example Variable, based on Current value Mask You want to modify Ip ospf areas removeRange Field in the IP Ospf Default Route Metric Display Default routerBy default, the default route metric is not defined It entails more hops or less bandwidth Defines the default route metric for the router Route metric With the default route 3500 9000 9400 3900 9300 Fields in the IP Ospf Interface Summary Display AreaID Ospf area to which the interface belongs IP interface of the backup designated router BDRFields in the IP Ospf Interface Detail Display Ospf information is displayed Designated router This router is not the designated router or backupBDR Router is the backup designated router on Attached network Fields in the IP Ospf Interface Statistics Display Interval than this router. This prevents the router from On the interface are configured with a different deadMismatchDead Becoming a neighbor with these other routers When an Ospf database descriptor packet is received When an Ospf Hello packet is received and the packetWhen an Ospf Hello packet is received that has the same When processing an LSR packet, if the area is not Problems Network whose configuration has not changed couldWhen an Ospf database descriptor packet is transmitted When an Ospf Hello, LSU, or LSAck is being sent as a Enables or disables Ospf on specified IP interfaces Assigns interface priority to the Ospf router One or more All factory Associates an interface with an Ospf area Assigns a cost to an Ospf interface Sets the Ospf interface transmit delay Transmit Delay in seconds that you Ip ospf interface hello Sets the interface Hello interval Ip ospf interface retransmit They determine that Ip ospf interface deadSpecifies the dead interval for an interface Transmitting router is inactive Ascii characters Default, or Sets password security for an Ospf interfaceAll ? for a list Selectable Indexes Up to eight Ip ospf linkStateData databaseSummary Fields in the IP Ospf Link State Data Router Display Lsid ID number of the router that originated the LSA Stub Net Network IP address maskMetric Cost of the link Router ID Originating router ID Fields in the IP Ospf Link State Data Network Display Link State ID For which you want to viewSummary LSA information For type 3 summary LSAs Type 4 ASBR’s Ospf router ID Fields in the IP Ospf Link State Data Summary DisplayType 3 Destination network’s IP address Metric Cost to reach the network Network mask For Fields in the IP Ospf Link State Data External Display IP network number Two-way Bidirectional communication has been Data received from neighbor will attempt to contactInit Have recently seen Hello packet from neighbor Established Ip ospf neighbors add Adds a neighbor static IP address to an existing interface 3500 9000 9400 3900 9300 Sets the Ospf router ID IP Ospf Router ID Example Interface Type IP Ospf Router ID Example Address Type Maximum size of the IP routing table at the next reboot Partition at the next rebootMeans that Ospf has been set to use the default memory Specific maximum partition size at the next reboot Modifies the maximum memory that Ospf can allocate There are three choices for memory allocation By default, the stub default metric is not defined Field in the IP Ospf Stub Default Metric Display Ip ospf stubDefaultMetric define Ip ospf stubDefaultMetric remove Update packet over the virtual link Fields in the IP Ospf Virtual Links Summary Display Displays detailed information about a virtual link Fields in the IP Ospf Virtual Links Detail Display Fields in the IP Ospf Virtual Links Neighbor Display Fields in the IP Ospf Virtual Links Statistics Display Ospf routers are being discarded due to authenticationIs not supported in the current implementation 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 Ip ospf policy detail Type 1 as default. Only applicable to export policiesFields in the IP Ospf Policy Detail Display Field Description Ip ospf policy define Defines import and export Ospf routing policies Export Direct Policy type Type of policy OriginProtocols From which protocol the route Originated Import Sta static Rip Ospf Import Policy Conditions Route Address/mask Action Description Export Policy Conditions for Direct Routes Ospf Export Policy ConditionsProtocol Interface Action Description Example of Export Policy for a Directly Connected Interface Ip ospf policy modify Modifies an existing Ospf routing policy Sta static rip Value PolicyPolicy action Accept or reject the route Valid IP Without options Value Type AS external advertisementASE, defined as Type Value IP Ospf Policy Modify Example Routers Specified routers Ip ospf policy remove Deletes Ospf routing policies Displays general Ospf statistics Ip ospf statisticsFields in the IP Ospf Statistics Display Open Shortest Path First Ospf IPX Display define modify remove SAPadvertising RIPadvertising Fields in the IPX Interface Display IPX interface. When the system prompts youIpx interface display For this option, the menu identifies the available Ipx interface define Defines an IPX interface IPX Interface Define Example Changes the characteristics of an existing IPX interface Ipx interface modify EthernetII Available with 802.2, SNAP,802.3/SNAP 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 Start Ipx route display0x0 0xffffffff Range You want to display routes Packets to the segment. a node address of all Fields in the IPX Route DisplayTime the router sent a packet Zeroes 00-00-00-00-00-00 means that Displays any secondary routes that are available Ipx route secondaryFields in the IPX Secondary Route Display Ipx route static Node address in the format IPX Static Route Example Deletes a route from the IPX routing table Ipx route removeIPX network Byte IPX network address 0x1 0xfffffffe Address Ipx route flush Ipx server display Time a server in the table sent a packet Service typeFields in the IPX Server Display Server. The maximum number is Defines a static IPX server Interface index Interface index number for IPX Static Server Example Deletes a server from the IPX server table Service name Service name of the server Service type? for a list of selectable names 0x1 0xffff Ipx server flush Displays any secondary servers that are available Ipx server secondaryFields in the IPX Secondary Server Display Ipx forwarding Controls whether the system forwards or discards IPX packets RIP allows the exchange of routing information on a NetWare Triggered RIP updatesPassive The system processes all incoming RIP packets Ipx rip triggered 3500 9000 9400 3900 9300 Ipx rip policy define Define a RIP Routing Information Protocol policy IPX RIP Policy Define Example Modify an existing RIP Routing Information Protocol policy Ipx rip policy modifyStatic All IPX RIP Policy Modify Example Adjust the metric value, ThisSubtract\ Multiply Divide Remove an existing RIP Routing Information Protocol policy Ipx rip policy removeIf only one policy Ipx sap mode Ipx sa t Name Object name that assigned to the server Type Or Export apply the policy to advertised servicesFields in an IPX SAP Policy Summary Display All routes Fields in an IPX SAP Policy Detail Display 0x0098 Define a SAP Service Advertising Protocol policyIpx sap policy define Parameter is valid only if Policy Type is set to Export All Match the same service. a Enter up to 6 hex characters IPX SAP Policy Define Example Modify a SAP Service Advertising Protocol policy Ipx sap policy modify 00-00-00-00-00-00 IPX SAP Policy Modify Example Remove an existing SAP Service Advertising Protocol policy Ipx output-delay Fields in the IPX Statistics Summary Display Displays IPX summary statisticsApplications that were dropped Displays IPX RIP Routing Information Protocol statistics Ipx statistics ripFields in the IPX RIP Statistics Display Fields in the IPX SAP Statistics Display Displays IPX SAP Service Advertising Protocol statisticsIpx statistics sap Been processed Displays IPX forwarding statistics Fields in the IPX Forwarding Statistics Display No Routes IPX route is unknown Displays IPX interface statistics Ipx statistics interfaceFields in the IPX Interface Statistics Display Field Description Ipx oddLengthPadding IPX NetBIOS Example Valid Minimum Abbreviation ipx n Options Ipx secondary IPX Secondary Example IPX Appletalk Appletalk Fields in the AppleTalk Interface Summary Display Displays summary information for all AppleTalk interfacesWith the AppleTalk interface Displays detailed information for all AppleTalk interfaces Fields in the AppleTalk Interface Detail Display Defines an AppleTalk interface Interface. Seed interfaces only Zone name. Seed interfaces Only Zone name AppleTalk zone that is Modifies an existing AppleTalk interface Interface n That you can associate with a Vlan interface index, itNew AppleTalk interface Removes an existing AppleTalk interface Fields in the AppleTalk Interface Statistics Display RtmpRouteDeletes NbpInLookupReqsRtmpOutDataPkts 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 Appletalk checksum AppleTalk protocol uses checksums to detect errors in dataVerification checksum from the incoming data and compares Appletalk sourceSocket Destination AppleTalk node that you want Appletalk pingTo test for network connectivity Address Fields in the AppleTalk DDP Statistics Display Fields in the AppleTalk Rtmp Statistics Display Displays AppleTalk Zone Information Protocol ZIP statistics Fields in the AppleTalk ZIP Statistics Display Displays AppleTalk Name Binding Protocol NBP statistics Any errorFields in the AppleTalk NBP Statistics Display Quality of Service QoS and Rsvp VIIPage Rsvp Quality of Service QOS and Rsvp Fields in the QoS Classifier Summary Display Fields in the QoS Classifier Detail Display Qos classifier detailAre predefined Flow classifiers only Classifier Installed Protocol UDP port range Defines a flow or nonflow classifier Qos classifier defineClassifier can have only one control applied to it Flow or nonflow Up to 0.0 Factory DefaultClassifier Number of the flow Classifier Ethertype Protocol type Classifiers with Source IP For flow classifiers Up to four portions 0.0End value Custom Custom protocol Nonflow Type Classifiers only Flow Classifier Procedure Custom Hex values for Protocol Quality of Service QOS and Rsvp QoS Classifier Define Example Flow Classifier Nonflow Classifier Procedure QoS Classifier Define Example Nonflow Classifier Qos classifier modify Modifies a previously defined classifier Match, or 255.255.255.255 Factory Procedure Flow Classifier Quality of Service QOS and Rsvp QoS Classifier Modify Example Flow Classifier Removes a previously defined classifier QoS Classifier Remove Example Displays summary information about QoS controls Fields in the QoS Control Summary Display Packet can be dropped if the transmit queue for which it is Fields in the QoS Control Detail DisplayLimit Rate limit in KBytes/sec or percentage Loss eligible Destined is over its threshold So forth Type Rate limit type, none no rate limit, receivePort, or Qos control define Defines a control for one or more existing classifiers ReceivePort Default Aggregate For rate limit Default/Best Effort forService level Service level for Control name Name that you assign to How rate limit Enabled backplane portsControl Used so that drop packets Enabled Is expressed Specific Input Time Type Options Input Time Type OptionsWeekdays Starting time hhmm Ending time hhmm Weekends You can apply aggregate rate limits only to flow classifiers Quality of Service QOS and Rsvp Enter the classifiers that are subject to this control QoS Control Define Example Select Qos control modifyLimit without affecting the other defined rate limits Specified for Service level Service level for Conforming packetsService level for excess That are associated with None ? for a list of selectable values TCP drop You want to enableFor flow or nonflow For a control Procedure Quality of Service QOS and Rsvp QoS Control Modify Example ReceivePort Removes a previously defined control QoS Control Remove Example 9000 Layer Qos ldap display Fields in the QoS Ldap Display Qos ldap enable Qos ldap disable Disabled Removes the connection to Ldap server Performed policing for that flow. Options are edge, always Qos rsvp summaryFields in the QoS Rsvp Summary Display Total resv Qos rsvp detail Displays detailed Rsvp information when Rsvp is enabledFields in the QoS Rsvp Detail Display Always Default Never Qos rsvp enableEnables Rsvp on the system Rsvp settings that you specify Maximum total Qos rsvp enable Disables Rsvp on the system Qos bandwidth display Sent only when no high priority packets need to be sent When you enter the command, the system prompts you to enterLink Display Qos excessTaggingWith a special Ieee 802.1p tag value Qos excessTagging enable Ieee 802.1p Tag value to use to tag or retag Excess packets Qos excessTagging disable Zero value shows byte or packet counters Seconds Factory Default, orSets a sampling interval for gathering QoS statistics Interval Interval, in seconds, during Bridge ports Port numbers whose receive Displays QoS receive statisticsFields in the QoS Receive Statistics Display 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 Viii Roving AnalysisPage Event LOG Event LOG Fields in the Log Display Log display Displays the current log settingsSupported Event Log Services Severity Levels Levels for Log Devices Examples? for a list of valid severity levels Yes To disable the config and info severity levels Services/levels Or disabled Log Services Examples To enable all severity levels for the AppleTalk service Event LOG Roving Analysis Roving Analysis Fields in the Analyzer Display Analyzer displayAnalyzer Display Example 3500 Analyzer Add Example 9000 1000BASE-SX module Analyzer remove Analyzer Remove Example Analyzer start Starts port monitoring activity on the selected bridge port Analyzer Start Example 9000 1000BASE-SX module Stops port monitoring activity on the selected bridge port Analyzer stopAnalyzer Stop Example Roving Analysis Appendix a Technical Support Page Services 3Com Hours a day, 7 days a week Access by Analog ModemUsername anonymous Country Data Rate Telephone Number 847 262 Access by Digital Modem408 727 Europe, South Africa, and Middle East NET 3Com 800 638 Country Telephone Number Fax Number 800 638 Not toll-free Appendix a Technical Support Numbers Symbols? character 473 Commands 150 system menu 218 Port duplex mode 212 Port flow control 215 Errors Routing interface203 Pace Access Protocol Dynamic versus static Vlan origin 345 Fax service 3ComFacts Fddi MAC 638 264 LER Link Error Rate Alarm value 242 LerCutoffSwitch Log, event 747 Logout SAP policy Define 642 Detail Removing 159 management ip rip Packet size advancedPing 475 advancedTraceRoute IPX 715 712 SMT Station Management LerAlarm valueDisplaying configurations 116 to Icmp Internet Control Message Protocol 483 570 QoS Quality of Service interval for101, 135 System reboot 123 418 IPX forwarding 348 Updates RIP triggered 631 Sample definition 311 Setting Ignore STP modeAccess 71 639 Zones 677 URL User configuration information