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The Catalyst 2820 and 1900 can be managed in-band through any SNMP-compatible workstation or through Telnet. They support standard SNMP MIB II objects as well as SNMP extensions designed to maximize the switches' manageability and configurability.
The complete set of objects are listed by function in the "Standard MIBs and MIB Extensions" section in this chapter. These MIB objects and other SNMP-based management techniques are described in a separate manual, the Catalyst 2820 Series and Catalyst 1900 Series MIB Reference Manual, available on the Documentation CD-ROM.
You can use any Telnet TCP/IP package to invoke the management console. The Catalyst 2820 and 1900 support up to seven simultaneous Telnet sessions. See the "Out-of-Band Management" chapter for details on the use of the management console.
Before beginning, the Catalyst 2820 and 1900 must be configured for SNMP management. To do this, you must assign an IP address to the switch using the IP Configuration Menu, described in the "IP Configuration" section in the "Out-of-Band Management" chapter. You do not need to reset the switch the first time you assign an IP address. Changes to the IP address, however, must be followed by a reset for the change to take effect. You can also use the Bootstrap protocol (BOOTP) described in the "Configuring the Switch for SNMP Management with BOOTP" section in this chapter.
The switch must be configured with an IP address before it can make available any in-band management. You can assign an individual address to each Catalyst 2820 or 1900, or you can use the BOOTP protocol to maintain a centralized database of such addresses.
A host machine with a BOOTP server program is needed to use BOOTP. A database containing a list of physical MAC addresses and corresponding IP addresses must be set up on this host. Other information, such as the corresponding subnet masks, default gateway addresses, and host names, can also be stored in the database but are optional. The switch must be able to access the BOOTP server through one of its ports.
After a system reset, the switch looks into its non-volatile random access memory (NVRAM) for a configured IP address, and if that exists, looks for a default gateway address and IP subnet mask.
If an IP address has not been configured, the switch transmits a BOOTP broadcast request to all of its ports having a physical connection, requesting a mapping for its physical MAC address. A valid response includes the IP address, which is mandatory, along with the subnet mask, the default gateway, and the host name, which are all optional.
The reception of a valid BOOTP response immediately activates the rest of the system's protocol suite, without requiring a system reset. The information is also saved in the NVRAM so that the next reset will not have to redeploy BOOTP.
As long as its IP address remains undiscovered, the switch will re-send BOOTP requests for 30 minutes.
For more information about using BOOTP, refer to the BOOTP server documentation.
The following pages list the actions you use to manage and configure a Catalyst 2820
and 1900 and the MIB objects associated with each action.
Parameter changes take effect immediately. However, changed parameters might not be written to permanent storage for up to 30 seconds. If you turn off the switch before the new parameters are written to permanent storage, the change does not take effect the next time the system is reset.
The following MIBs are supported by the Catalyst 2820 and 1900 and are listed in Table 6-1 through Table 6-8:
| Action | Associated MIB Objects |
| View Self Test Results | sysInfoPOSTResult sysInfoPOSTPortFailedPostMap |
| View System Information | sysInfoFwdEngineRevision sysInfoBoardRevision sysInfoTotalNumberOfPorts sysInfoNumberOfSwitchPorts sysInfoNumberOfInstalledModules sysInfoNumberofSwitchPorts sysInfoNumberOfSharedPorts sysInfoAddrCapacity sysInfoRestrictedStaticAddrCapacity |
| View/Configure RS-232 Port for an Attached Modem | netMgmtModemInitString netMgmtModemAutoAnswer netMgmtModemDialString netMgmtModemDialDelay |
| View/Configure Management VLAN | NetMgmtVlan |
| Action | Associated MIB Objects |
| View/Configure Logon Security | netMgmtConsolePasswordThresh netMgmtConsoleSilentTime netMgmtConsoleInactTime |
| View/Configure Switching Mode | sysConfigSwitchingMode sysConfigMulticastStoreAndForward |
| View/Configure Network Port | sysConfigNetworkPort |
| View/Configure Port Monitoring Mode | sysConfigMonitor sysConfigMonitorPort sysConfigHigherProtocolMonitor swPortMonitoring |
| View/Configure Virtual LAN Information | vlanMaxSupported |
| View/Configure Virtual LAN Membership | vlanIndex vlanName vlanMemberPorts vlanMemberIndex vlanMemberPortIndex vlanMemberPortOfVlan |
| View/Configure Address Security | swPortAddressingSecurity swPortAddressTableSize swPortSecuredAddressViolations sysConfigAddressViolationAlert sysConfigAddressViolationAction |
| View/Configure Performance Information | sysInfoBuffersUsed sysInfoMaxBuffers sysInfoUtilDisplay swPortTxQueueFullDiscards swPortRxNoBufferDiscards bandwidthUsageCurrent bandwidthUsageMaxPeakEntries bandwidthUsagePeakInterval bandwidthUsagePeakRestart bandwidthUsageCurrentPeakEntry bandwidthUsagePeakIndex bandwidthUsageStartTime bandwidthUsagePeak bandwidthUsagePeakTime |
| Action | Associated MIB Objects |
| View/Configure Broadcast Storm Control | SysInfoBroadcastStormLastTime SysInfoPortExceedBroadcastStorm SysConfigBroadcastStormAction SysConfigBroadcastStormAlert SysConfigBroadcastThreshold SysConfigBroadcastReEnableThreshold |
| View RPS State | SysInfoRedundantPowerState SysInfoInternalPowerState |
| View/Configure Port Characteristics | swPortIndex swPortName swPortMediaCapability swPortControllerRevision swPortMtu swPortSpeed swPortSTPPortFastMode swPortConnectorType swPortFullDuplex swPortBroadcastStormControlBlocked |
| View/Configure Port Address Status | swPortNumberOfLearnedAddresses swPortNumberOfStaticAddresses swPortEraseAddresses swPortFloodUnregisteredMulticasts swPortFloodUnknownUnicasts |
| View/Configure Port Status | swPortStatus swPortAdminStatus swPortLastStatus swPortStatusChanges swPortLinkbeatStatus swPortLinkbeatLosses swPortJabberStatus swPortJabbers |
| View/Configure CDP | netMgmtCdpHoldTime netMgmtCdpTransmissionTime |
| View/Configure CGMP | netMgmtCgmpEnable netMgmtCgmpRouterHoldTime |
| Action | Associated MIB Objects |
| View/Configure Port Fast | swPortSTPPortFastMode |
| View Port Receive Statistics | swPortRxStatIndex swPortRxTotalOctets swPortRxTotalOctetsWraps swPortRxTotalFrames swPortRxUnicastFrames swPortRxUnicastOctets swPortRxUnicastOctetsWraps swPortRxBroadcastFrames swPortRxBroadcastOctets swPortRxBroadcastOctetsWraps swPortRxMulticastFrames swPortRxMulticastOctets swPortRxMulticastOctetsWraps swPortRxForwardedFrames swPortRxFilteredFrames swPortRxNoBufferDiscards swPortRxFCSErrors swPortRxAlignmentErrors swPortRxFrameTooLongs swPortRxRunts |
| Action | Associated MIB Objects |
| View Port Transmit Statistics | swPortTxStatIndex swPortTxTotalOctets swPortTxTotalOctetsWraps swPortTxTotalFrames swPortTxUnicastFrames swPortTxUnicastOctets swPortTxUnicastOctetsWraps swPortTxBroadcastFrames swPortTxBroadcastOctets swPortTxBroadcastOctetsWraps swPortTxMulticastFrames swPortTxMulticastOctets swPortTxMulticastOctetsWraps swPortTxDeferrals swPortTxSingleCollisions swPortTxMultipleCollisions swPortTxLateCollisions swPortTxExcessiveCollisions swPortTxExcessiveDeferrals swPortTxExcessiveCollisions16s swPortTxExcessiveCollisions4s swPortTxQueueFullDiscards swPortTxErrors |
| View/Configure Collision Histograms | swPortTxCollIndex swPortTxCollCount swPortTxCollFrequencies |
| View/Configure Spanning-Tree Protocol | sysConfigEnableSTP |
| View/Configure for In-Band Management | netMgmtIpAddress netMgmtDefaultGateway netMgmtIpSubnetMask |
| View/Configure Set Clients | netMgmtSetClientIndex netMgmtSetClientAddr netMgmtSetClientStatus |
| Action | Associated MIB Objects |
| View/Configure Trap Clients and Traps | netMgmtTrapClientIndex netMgmtTrapClientAddr netMgmtTrapClientComm netMgmtTrapClientStatus netMgmtEnableLinkTraps netMgmtEnableAuthenTraps |
| View/Configure Firmware Upgrades | upgradeFlashSize upgradeFlashBankStatus upgradeTFTPServerAddress upgradeTFTPLoadFilename upgradeTFTPInitiate upgradeTFTPAccept |
| Reset System | sysConfigReset sysConfigDefaultReset |
| Clear Port Statistics | sysConfigClearPortStats swPortClearStatistics |
This MIB applies to the Catalyst 2820 only.
| Action | Associated MIB Objects |
| View/Configure High-Speed Modules | esModuleCapacity esModuleIndex esModuleStatus esModuleAdminStatus esModuleBootCodeVersion esModuleFlashStatus esModuleResetToFactoryDefaults esModuleDescr esModuleID esModuleVersion esModuleObjectID esModulePortCapacity esModuleReset esModuleLastStatusChange esModuleCollisionPeriods esModulePortTable esModulePortIndex esModulePortDescr esModulePortAdminStatus esModulePortAutoPartitionState esModulePortOperStatus esModulePortLinkbeatStatus esModulePortConnectorType esModulePortReceivePeriods |
| Action | Associated MIB Objects |
| View FDDI POST Results | fmCfgPOSTResult fmCfgPOSTTest fmCfgPOSTLoopbackResult |
| Reset FDDI Module | fmCfgResetToFactoryDefaults fmCfgResetModule |
| View/Configure FDDI to Ethernet Frame Translation | fmCfgNovellFDDISNAPTranslation fmCfgUnmatchedSNAPDestination |
| View/Configure SMT Authorization | fmCfgAuthorizationChecking fmCfgAuthorizationString |
| View FDDI Module Firmware Status | fmCfgFirmwareVersion fmCfgBOOTCodeVersion fmCfgFlashStatus |
| View FDDI Translation to FDDI | fmXlateToFDDIIndex fmXlateToFDDINovellRaw8023ToSnapFrames fmXlateToFDDINovellEthIIToSnapFrames fmXlateToFDDINovellSnapToSnapFrames fmXlateToFDDIEthIIToBridgeTunnelFrames fmXlateToFDDIEthIIToSnapFrames fmXlateToFDDIOtherSnapToSnapFrames fmXlateToFDDI8022To8022Frames |
| View FDDI Frame Filtering Statistics | fmFilterIndex fmFilterFcsInvalidFrames fmFilterDataLengthFrames fmFilterErrorIndFrames fmFilterFddiFifoOverrunFrames fmFilterFddiInternalErrorFrame fmFilterNoEndDelimitFrames fmFilterNoBufferSpaceFrames fmFilterNoLlcHeaderFrames fmFilterSourceRouteFrames fmFilterNoSnapHeaderFrames fmFilterTooLargeFrames fmFilterNovellSnapFilteredFrames fmFilterCantFragmentFrames fmFilterBadIpHeaderFrames fmFilterRingDownDiscards fmFilterNovellOtherFilteredFrames |
| View FDDI Performance Information | fmFilterNoBufferSpaceFrames fmCfgUnmatchedSNAPDestination |
| View FDDI Translation to Ethernet Statistics | fmXlateToEthIndex fmXlateToEthNovellSnapToRaw8023Frames fmXlateToEthNovellSnapToEthIIFrames fmXlateToEthNovellSnapToSnapFrames fmXlateToEthAppleTalkSnapToSnapFrames fmXlateToEthIpSnapForFragmentationFrames fmXlateToEthIpSnapFragmentedFrames fmXlateToEthBridgeTunnelToEthIIFrames fmXlateToEthOtherSnapToEthIIFrames fmXlateToEthOtherSnapToSnapFrames fmXlateToEth8022To8022Frames |
This MIB applies to the Catalyst 2820 only.
| Action | Associated MIB Objects |
|---|---|
| View Interface Configuration Parameters | atmInterfaceConfTable atmInterfaceConfEntry atmInterfaceMaxVpcs atmInterfaceMaxVccs atmInterfaceConfVpcs atmInterfaceConfVccs atmInterfaceMaxActiveVpiBits atmInterfaceMaxActiveVciBits atmInterfaceIlmiVpi atmInterfaceIlmiVci atmInterfaceAddressType atmInterfaceAdminAddress atmInterfaceMyNeighborIpAddress atmInterfaceMyNeighborIfName |
| View Configuration and State Parameters | atmInterfaceDs3PlcpTable atmInterfaceDs3PlcpEntry atmInterfaceDs3PlcpSEFSs atmInterfaceDs3PlcpAlarmState atmInterfaceDs3PlcpUASs |
| View Virtual Channel Links | atmVclTable atmVclEntry atmVclVpi atmVclVci atmAdminStatus atmVclOperStatus atmVclLastChange atmVclReceiveTrafficDescrIndex atmVclTransmitTrafficDescrIndex atmVccAalType atmVccAal5CpcsTransmitSduSize atmVccAal5CpcsReceiveSduSize atmVccAal5EncapsType atmVclCrossConnectIdentifier atmVclRowStatus |
| View Virtual Channel | atmVpCrossConnectL2HOperStatus atmVpCrossConnectH2LOperStatus atmVpCrossConnectL2HLastChange atmVpCrossConnectH2LLastChange atmVpCrossConnectRowStatus atmVcCrossConnectIndexNext atmVcCrossConnectTable atmVcCrossConnectEntry atmVcCrossConnectIndex atmVcCrossConnectLowIfIndex atmVcCrossConnectLowVpi atmVcCrossConnectLowVci atmVcCrossConnectHighIfIndex atmVcCrossConnectHighVpi atmVcCrossConnectHighVci atmVcCrossConnectAdminStatus atmVcCrossConnectL2HOperStatus atmVcCrossConnectH2LOperStatus atmVcCrossConnectL2HLastChange atmVcCrossConnectH2LLastChange atmVcCrossConnectRowStatus |
| View Performance Statistics | aal5VccTable aal5VccEntry aal5VccVpi aal5VccVci aal5VccCrcErrors aal5VccSarTimeOuts aal5VccOverSizedSDUs |
This MIB applies to the Catalyst 2820 only.
| Action | Associated MIB Objects |
|---|---|
| View ATM Address Information | lecAtmAddressTable lecAtmAddressEntry lecAtmAddress lecAtmAddressStatus |
| View Mac Address Information | lecMacAddressTable lecMacAddressEntry lecMacAddress lecMacAddressAtmBinding |
| View Cache Address Information | leArpTable leArpEntry leArpMacAddress leArpAtmAddress leArpIsRemoteAddress leArpEntryType leArpRowStatus |
| View Mapping Information | lecMappingTable lecMappingEntry lecMappingIndex |
| View Configuration Information | lecConfigTable lecConfigEntry lecIndex lecRowStatus lecOwner ecConfigMode lecConfigLanType lecConfigMaxDataFrameSize lecConfigLanName lecConfigLesAtmAddress lecControlTimeout lecMaxUnknownFrameCount lecMaxUnknownFrameTime lecVccTimeoutPeriod lecMaxRetryCount lecAgingTime lecForwardDelayTime lecExpectedArpResponseTime lecFlushTimeTimeOut lecPathSwitchingDelay lecLocalSegmentID lecMulticastSendType lecMulticastSendAvgRate lecMulticastSendPeakRate lecConnectionCompleteTimer |
| View Client Status | lecStatusTable lecStatusEntry lecIfIndex lecPrimaryAtmAddress lecID lecInterfaceState lecLastFailureRespCode lecLastFailureState lecProtocol lecVersion lecTopologyChange lecConfigServerAtmAddress lecConfigSource lecActualLanType lecActualMaxDataFrameSize lecActualLanName lecActualLesAtmAddress lecProxyClient |
| View Performance Statistics | lecStatisticsTable lecStatisticsEntry lecArpRequestsOut lecArpRequestsIn lecArpRepliesOut lecArpRepliesIn lecControlFramesOut lecControlFramesIn lecSvcFailures |
| Action | Associated MIB Objects |
| View Spanning-Tree Protocol Status | dot1dStpTimeSinceTopologyChange dot1dStpTopChanges dot1dStpDesignatedRoot dot1dStpMaxAge dot1dStpHelloTime dot1dStpHoldTime dot1dStpFowardDelay dot1dStpProtocolSpecification dot1dStpRootCost dot1dStpRootPort |
| View/Configure Spanning-Tree Protocol Parameters when this Bridge is Acting as Root | dot1dBridgeHelloTime dot1dBridgeMaxAge dot1dBridgeForwardDelay |
| View/Configure Spanning-Tree Protocol Parameters | dot1dStpPriority |
| View/Configure Per Port Spanning-Tree Protocol Status | dot1dStpPortPriority dot1dStpPortState dot1dStpPortEnable dot1dStpPortPathCost dot1dStpPortDesignatedRoot dot1dStpPortDesignatedCost dot1dStpPortDesignatedBridge dot1dStpPortDesignatedPort dot1dStpPortForwardTransitions |
| View/Configure Address Aging Parameters | dot1dTpLearnedEntryDiscards dot1dTpAgingTime |
| View/Configure the Forwarding Database of the Bridge | dot1dTpFdbAddress dot1dTpFdbPort dot1dTpFdbStatus |
| View/Configure the Static Address Table | dot1dStaticAddress dot1dStaticReceivePort dot1dStaticAllowedToGoTo dot1dStaticStatus |
This MIB applies to the Catalyst 2820 only.
| Action | Associated MIB Objects |
| View SMT Information | fddimibSMTStationId fddimibSMTOpVersionId fddimibSMTMIBVersionId fddimibSMTMACCts fddimibSMTNonMasterCts fddimibSMTConnectionPolicy fddimibSMTBypassPresent fddimibSMTECMState fddimibSMTCFState fddimibSMTRemoteDisconnectFlag fddimibSMTStationStatus |
| View MAC Traffic Statistics | fddimibMACFrameCts fddimibMACCopiedCts fddimibMACTransmitCts fddimibMACErrorCts fddimibMACLostCts fddimibMACTokenCts fddimibMACTvxExpiredCts fddimibMACNotCopiedCts fddimibMACLateCts fddimibMACRingOpCts fddimibMACNotCopiedRatio fddimibMACNotCopiedFlag |
| View PORT Information | fddimibPORTMyType fddimibPORTNeighborType fddimibPORTConnectionPolicies fddimibPORTCurrentPath fddimibPORTAvailablePaths fddimibPORTPMDClass fddimibPORTLCTFailCts fddimibPORTLemRejectCts fddimibPORTLemCts fddimibPORTPCMState |
| View/Configure SMT Information | fddimibSMTNotify |
| View MAC Information | fddimibMACFrameStatusFunctions fddimibMACAvailablePaths fddimibMACUpstreamNbr fddimibMACDownstreamNbr fddimibMACOldUpstreamNbr fddimibMACOldDownstreamNbr fddimibMACDownstreamPORTType fddimibMACTReq fddimibMACTNeg fddimibMACFrameErrorThreshold |
| Action | Associated MIB Objects |
| View RS-232 Port Input/Output Signals | rs232InSigPortIndex rs232InSigName rs232InSigState rs232InSigChanges rs232OutSigPortIndex rs232OutSigName rs232OutSigState rs232OutSigChanges |
| View/Configure RS-232 Port Characteristics | rs232Number rs232PortIndex rs232PortType rs232PortInSigNumber rs232PortOutSigNumber rs232PortInSpeed rs232PortOutSpeed |
| View/Configure RS-232 Async Port Characteristics | rs232AsyncPortIndex rs232AsyncPortBits rs232AsyncPortStopBits rs232AsyncPortParity rs232AsyncPortAutobaud |
| View RS-232 Async Port Statistics | rs232AsyncPortParityErrs rs232AsyncPortFramingErrs rs232AsyncPortOverrunErrs |
| Action | Associated MIB Objects |
| View/Configure CDP | cdpInterfaceEnable cdpInterfaceMessageInterval |
| View CDP Neighbor Information | cdpCacheAddressType cdpCacheAddress cdpCacheVersion cdpCacheDeviceID cdpCacheDevicePort cdpCachePlatform cdpCacheCapabilities |
A trap client is a management workstation configured to receive and process traps. The Catalyst 2820 or 1900 supports up to four trap clients with separate community strings. At least one trap client must be defined before any traps are generated. See the "Network Management (SNMP) Configuration" section in the "Out-of-Band Management" chapter for instructions on defining trap clients. See the "Standard MIBs and MIB Extensions" section in this chapter for the MIB objects to use.
The Catalyst 2820 or 1900 can generate the following traps:
| warmStart | Generated when the switch is reset or after the completion of a firmware upgrade where the new firmware is immediately selected for execution. This could be performed in-band or out-of-band with the management console. |
| coldStart | Generated upon a power-on reset. |
| linkDown | Generated whenever a port changes to a suspended or disabled state due to spanning-tree blocking of a redundant path, secure address violation, loss of linkbeat, jabber error, or by management intervention. The trap frame carries the index value of the port. |
| linkUp | Generated when a port changes status from disabled or suspended to enabled. |
| authenticationFailure | Generated when the switch receives an SNMP message that is not accompanied by a valid community string. |
| newRoot | The switch generates this bridge-standard trap when it becomes the new root of the spanning tree. |
| topologyChange | From the bridge MIB, this trap is generated by the switch when any of its ports change from the learning to the forwarding state, from the forwarding state to the blocking state, or when a new root is elected. |
| logonIntruder | An enterprise-specific trap generated whenever the management console receives repeated logon failures due to invalid passwords. You can define the number of invalid passwords permitted before this trap is generated. |
| switchDiagnostic | The switch generates this enterprise-specific trap when it does not pass all of the POST tests. Some POST failures are fatal and could prevent the generation of this trap. |
| AddressViolation | The switch generates this trap when an address violation is detected on a secured port. It can be enabled or suppressed using the object sysConfigAddressViolationAlert. |
| BroadcastStormControl | This enterprise-specific trap is generated when the number of broadcast packets received from a port is higher than the broadcast threshold defined for the switch. This trap is generated no more than once every 30 seconds.
This trap is disabled by default. You can enable it using the object sysConfigBroadcastStormAlert. |
| rpsFailed | This enterprise-specific trap is generated whenever the redundant power supply connected to the switch fails. It is generated no more than once a minute. |
| risingAlarm | This trap is generated when an alarm entry specified through the RMON MIB crosses its rising threshold and triggers an event that is configured to send an SNMP trap. |
| fallingAlarm | This trap is generated when an alarm entry specified through the RMON MIB crosses its falling threshold and generates an event that is configured for sending SNMP traps. |
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