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1、©2002,CiscoSystems,Inc.Allrightsreserved.©2002,CiscoSystems,Inc.Allrightsreserved.2RouterStartupandConfigurationManagementObjectivesUponcompletingthislesson,youwillbeableto:DescribetherouterbootsequenceandexplainhowtoverifythattherouterbootedcorrectlyIdentifytheinternalcomponentsofCisco
2、switchesandroutersRouterPower-On/BootupSequencePerformpower-onselftest(POST).Loadandrunbootstrapcode.FindtheCiscoIOSsoftware.LoadtheCiscoIOSsoftware.Findtheconfiguration.Loadtheconfiguration.RuntheconfiguredCiscoIOSsoftware.RouterInternalComponentsROMFunctionsContainsmicrocodeforbasicfu
3、nctionsFindingthe CiscoIOSSoftwareLoadingtheCiscoIOSSoftware fromFlashMemoryTheflashmemoryfileisdecompressedintoRAM.LoadingtheConfigurationLoadandexecutetheconfigurationfromNVRAM.IfnoconfigurationispresentinNVRAM,entersetupmode.DeterminingtheCurrentConfigurationRegisterValuewg_ro_a#show
4、versionCiscoInternetworkOperatingSystemSoftwareIOS(tm)2500Software(C2500-JS-L),Version12.0(3),RELEASESOFTWARE(fc1)Copyright(c)1986-1999byciscoSystems,Inc.CompiledMon08-Feb-9918:18byphanguyeImagetext-base:0x03050C84,data-base:0x00001000ROM:SystemBootstrap,Version11.0(10c),SOFTWAREBOOTFLA
5、SH:3000BootstrapSoftware(IGS-BOOT-R),Version11.0(10c),RELEASESOFTWARE(fc1)wg_ro_auptimeis20minutesSystemrestartedbyreloadSystemimagefileis"flash:c2500-js-l_120-3.bin"--More--Configurationregisteris0x2102ConfigurationregistervalueinshowversionConfigurationregisterbits3,2,1,and0setbootopt
6、ion.Checktheconfigurationregistervaluewithshowversion.ConfigurationRegisterValuesshowversionCommandRouter#showversionCiscoInternetworkOperatingSystemSoftwareIOS(tm)C2600Software(C2600-JS-M),Version12.0(7a),RELEASESOFTWARE(fc1)Copyright(c)1986-2002byciscoSystems,Inc.CompiledTue05-Feb-020
7、1:48bypwadeImagetext-base:0x80008088,data-base:0x80B0404CROM:SystemBootstrap,Version11.3(2)XA4,RELEASESOFTWARE(fc1)Routeruptimeis1minuteSystemrestartedbyreloadSystemimagefileis"flash:c2600-js-mz.120-7a.bin"cisco2610(MPC860)processor(revision0x300)with53248K/12288Kbytesofmemory.
