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©2002,CiscoSystems,Inc.Allrightsreserved.©2002,CiscoSystems,Inc.Allrightsreserved.ICNDv2.0—1-2©2002,CiscoSystems,Inc.Allrightsreserved.2StartingaSwitch©2002,CiscoSystems,Inc.Allrightsreserved.ICNDv2.0—1-3ObjectivesUponcompletingthislesson,youwillbeableto:•Startanaccesslayerswitchandrecognizethenormalbootsequence•Usethecommand-lineinterfacetointeractwiththeCiscoIOSsoftware,givenanoperationalaccesslayerswitch•Usetheonlinehelpfacilitiesassociatedwiththecommand-lineinterfaces,givenanoperationalaccesslayerswitch©2002,CiscoSystems,Inc.Allrightsreserved.ICNDv2.0—1-4•Systemstartuproutinesinitiateswitchsoftware.•Initialstartupusesdefaultconfigurationparameters.InitialStartupoftheCatalystSwitch©2002,CiscoSystems,Inc.Allrightsreserved.ICNDv2.0—1-5Catalyst1900SwitchLEDIndicators©2002,CiscoSystems,Inc.Allrightsreserved.ICNDv2.0—1-6Catalyst2950SwitchLEDIndicators©2002,CiscoSystems,Inc.Allrightsreserved.ICNDv2.0—1-7PortLEDsDuringSwitchPOST1.Atthestart,allportLEDsaregreen.2.EachLEDturnsoffafteritstestcompletes.3.Ifatestfails,itsLEDturnsamber.4.SystemLEDturnsamberifanytestfails.5.Ifnotestfails,POSTcompletes.6.OnPOSTcompletion,LEDsblink,thenturnoff.©2002,CiscoSystems,Inc.Allrightsreserved.ICNDv2.0—1-8InitialBootupOutputfromtheCatalyst1900Switch©2002,CiscoSystems,Inc.Allrightsreserved.ICNDv2.0—1-9InitialBootupOutputfromtheCatalyst2950Switch---SystemConfigurationDialog---Atanypointyoumayenteraquestionmark'?'forhelp.Usectrl-ctoabortconfigurationdialogatanyprompt.Defaultsettingsareinsquarebrackets'[]'.Continuewithconfigurationdialog?[yes/no]:yesEnterIPaddress:ip_addressEnterIPnetmask:ip_netmaskWouldyouliketoenteradefaultgatewayaddress?[yes]:yesIPaddressofthedefaultgateway:ip_addressEnterahostname:host_nameEnterenablesecret:secret_passwordWouldyouliketoconfigureaTelnetpassword?[yes]yesEnterTelnetpassword:telnet_passwordWouldyouliketoenableasaclustercommandswitch?noEnterclustername:cls_name©2002,CiscoSystems,Inc.Allrightsreserved.ICNDv2.0—1-10LoggingIntotheSwitchandEnteringtheEnablePassword©2002,CiscoSystems,Inc.Allrightsreserved.ICNDv2.0—1-11Context-SensitiveHelpConsoleErrorMessagesIdentifiesproblemswithanyswitchcommandsthatareincorrectlyenteredsothatyoucanalterorcorrectthemAllowsrecalloflongorcomplexcommandsorentriesforreentry,review,orcorrectionCommandHistoryBufferProvidesalistofcommandsandtheargumentsassociatedwithaspecificcommandSwitchCommand-LineHelpFacilities©2002,CiscoSystems,Inc.Allrightsreserved.ICNDv2.0—1-12ConfigurationModes:•Globalconfigurationmode–wg_sw_a#configureterminal–wg_sw_a(config)#•Interfaceconfigurationmode–wg_sw_a(config)#interfacee0/1–wg_sw_a(config-if)#ConfiguringtheSwitch©2002,CiscoSystems,Inc.Allrightsreserved.ICNDv2.0—1-13•SetsthelocalidentityfortheswitchConfiguringSwitchIdentification©2002,CiscoSystems,Inc.Allrightsreserved.ICNDv2.0—1-14wg_sw_a(config)#ipaddress{ipaddress}{mask}Example:wg_sw_a(config)#ipaddress10.5.5.11255.255.255.0ConfiguringtheSwitchIPAddress©2002,CiscoSystems,Inc.Allrightsreserved.ICNDv2.0—1-15wg_sw_a(config)#ipdefault-gateway{ipaddress}Example:wg_sw_a(config)#ipdefault-gateway172.20.137.1ConfiguringtheSwitchDefaultGateway©2002,CiscoSystems,Inc.Allrightsreserved.ICNDv2.0—1-16ShowingSwitchInitialStartupStatuswg_sw_a#showversion•Displaystheconfigurationofthesystemhardware,softwareversion,namesandsourcesofconfigurationfiles,andbootimageswg_sw_a#showrunning-configuration•Displaystheswitch’scurrentactiveconfigurationfilewg_sw_a#showinterfaces•Displaysstatisticsforallinterfacesconfiguredontheswitchwg_sw_a#showip•DisplaystheIPaddress,subnetmask,anddefaultgateway©2002,CiscoSystems,Inc.Allrightsreserved.ICNDv2.0—1-17SwitchshowversionCommandwg_sw_a#showversionCiscoCatalyst1900/2820EnterpriseEditionSoftwareVersionV8.01.01writtenfrom171.068.229.225Copyright(c)CiscoSystems,Inc.1993-2001wg_sw_cuptimeis15day(s)21hour(s)53minute(s)11second(s)ciscoCatalyst1900(486sxl)processorwith2048K/1024KbytesofmemoryHardwareboardrevisionis5UpgradeStatus:Noupgradecurrentlyinprogress.ConfigFileStatus:Noconfigurationupload/downloadisinprogress27FixedEthernet/IEEE802.3interface(s)BaseEthernetAddress:00-50-BD-73-E2-C0©2002,CiscoSystems,Inc.Allrightsreserved.ICNDv2.0—1-18wg_sw_a#showrunning-configurationBuildingconfiguration...Currentconfiguration:!hostnamewg_sw_c!ipaddress10.1.1.33255.255.255.0ipdefault-gateway10.3.3.3!interfaceEthernet0/1textomittedinterfaceEthernet0/24!InterfaceEthernet0/25!interfaceFastEthernet0/26!interfaceFastEthernet0/27wg_sw_a#showrunning-configurationBuildingconfiguration...Currentconfiguration:!hostnamewg_sw_c!ipaddress10.1.1.33255.255.255.0ipdefault-gateway10.3.3.3!interfaceEthernet0/1textomittedinterfaceEthernet0/12!InterfaceEthernet0/25!interfaceFastEthernet0/26!interfaceFastEthernet0/27Catalyst1924SwitchCatalyst1912SwitchSwitchshowrunning-configurationCommand©2002,CiscoSystems,Inc.Allrightsreserved.ICNDv2.0—1-19wg_sw_a#showinterfacesethernet0/1Ethernet0/1isEnabledHardwareisBuilt-in10Base-TAddressis0050.BD73.E2C1MTU1500bytes,BW10000Kbits802.1dSTPState:ForwardingForwardTransitions:1Po