思科网络技术培训之5：管理网络环境.ppt

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1、ObjectivesUponcompletionofthischapter,youwillbeabletoperformthefollowingtasks:GatherinformationaboutneighbordevicesGatherinformationaboutremotedevicesCreateasimplenetworkdiagramtodocumentthenetworkDeterminethelocationfromwhichaconfigurationandIOSimage

2、willbeloadedCiscoDiscoveryProtocolAproprietaryutilitythatgivesyouasummaryofdirectlyconnectedswitches,routers,andotherCiscodevicesCDPdiscoversneighbordevicesregardlessofwhichprotocolsuitetheyarerunningPhysicalmediamustsupporttheSubnetworkAccessProtocol(

3、SNAP)encapsulationUpper-LayerEntryAddressesCiscoProprietaryData-LinkProtocolMediaSupportingSNAPTCP/IPNovellIPXCDPdiscoversandshowsinformationaboutdirectlyconnectedCiscodevicesATMOthersLANsFrameRelayAppleTalkOthersRunsonrouterswithCiscoIOS10.3orlateran

4、dCiscoswitchesandhubsSummaryinformationincludes:DeviceidentifiersAddresslistPortidentifierCapabilitieslistPlatformCDPshowcdpCDPCDPDiscoveringNeighborswithCDPUsingCDPSwitchBRouterARouterBSwitchA10.3.3.210.3.3.110.1.1.110.1.1.210.2.2.110.2.2.2S0S1Route

5、rA#shcdp?entryInformationforspecificneighborentryinterfaceCDPinterfacestatusandconfigurationneighborsCDPneighborentriestrafficCDPstatisticsRouterA(config)#nocdprunRouterA(config)#interfaceserial0RouterA(config-if)#nocdpenableSwitchAalsoprovidesitsMa

6、caddressUsingtheshowcdpneighborCommandRouterA#shcdpneighborsCapabilityCodes:R-Router,T-TransBridge,B-SourceRouteBridgeS-Switch,H-Host,I-IGMP,r-RepeaterDeviceIDLocalIntrfceHoldtmeCapabilityPlatformPortIDRouterBSer0148R2522Ser1SwitchA0050BD855780Eth0167TS

7、19002SwitchBRouterARouterBSwitchA10.3.3.210.3.3.110.1.1.110.1.1.210.2.2.110.2.2.2S0S1UsingtheshowcdpentryCommandRouterA#shcdpentry*-------------------------DeviceID:RouterBEntryaddress(es):IPaddress:10.1.1.2Platform:cisco2522,Capabilities:RouterInterfac

8、e:Serial0,PortID(outgoingport):Serial1Holdtime:168secVersion:CiscoInternetworkOperatingSystemSoftwareIOS(tm)2500Software(C2500-JS-L),Version12.0(3),RELEASESOFTWARE(fci)Copyright(c)1986-1999byciscoSystems,Inc.CompiledMon08-Feb-991