ccna中文课件10.开启交换机

以太网LAN启动交换机Catalyst交换机的初始启动系统启动例程来初始化交换机软件。初始启动使用默认配置参数。Catalyst2960交换机LED指示灯Catalyst2960交换机的初始启动输出Catalyst2960交换机使用设置的初始配置登录交换机并进入特权EXEC模式配置模式：全局配置模式SwitchX#configureterminalSwitchX(config)#接口配置模式SwitchX(config)#interfacefa0/1SwitchX(config-if)#配置交换机设置交换机的本地标识配置交换机标识示例：SwitchX(config)#interfacevlan1SwitchX(config-if)#ipaddress1SwitchX(config-if)#noshutdown注：需要使用noshutdown命令使接口正常运行。SwitchX(config)#interfacevlan1SwitchX(config-if)#ipaddress{ip

address}{mask}配置交换机IP地址SwitchX(config)#ipdefault-gateway示例：SwitchX(config)#ipdefault-gateway{ipaddress}配置交换机的默认网关保存配置将当前配置复制到NVRAMSwitchXSwitchXcopyrunning-configstartup-configDestinationfilename[startup-config]?Buildingconfiguration…SwitchX显示交换机的初始启动状态SwitchX#showversion显示系统硬件的配置、软件版本、配置文件的名称和来源，以及引导映象SwitchX#showrunning-config显示交换机当前的活动配置文件SwitchX#showinterfaces显示在交换机上配置的所有接口的统计信息Switch#showversionSOFTWARE(fc1)Copyright(c)1986-2006byCiscoSystems,Inc.CompiledFri28-Jul-0611:57byyenanhImagetext-base:0x00003000,data-base:0x00BB7944ROM:BootstrapprogramisC2960bootloaderBOOTLDR:C2960BootLoader(C2960-HBOOT-M)Version12.2(25r)SEE1,RELEASESOFTWARE(fc1)SystemreturnedtoROMbypower-onSystemimagefileis"flash:c2960-lanbasek9-mz.122-25.SEE2/c2960-lanbasek9-mz.122-25.SEE2.bin"ProcessorboardIDFOC1052W3XCLastresetfrompower-on1VirtualEthernetinterface24FastEthernetinterfaces2GigabitEthernetinterfacesThepassword-recoverymechanismisenabled.!TextomittedSwitch#交换机的showversion命令CiscoIOSSoftware,C2960Software(C2960-LANBASEK9-M),Version12.2(25)SEE2,RELEASESwitchuptimeis24minutesciscoWS-C2960-24TT-L(PowerPC405)processor(revisionB0)with61440K/4088Kbytesofmemory.交换机的showinterfaces命令SwitchX#showinterfacesFastEthernet0/2FastEthernet0/2isup,lineprotocolisup(connected)HardwareisFastEthernet,addressis0008.a445.ce82(bia0008.a445.ce82)MTU1500bytes,BW10000Kbit,DLY1000usec,reliability255/255,txload1/255,rxload1/255EncapsulationARPA,loopbacknotsetKeepaliveset(10sec)Half-duplex,10Mb/sinputflow-controlisunsupportedoutputflow-controlisunsupportedARPtype:ARPA,ARPTimeout04:00:00Lastinput4w6d,output00:00:01,outputhangneverLastclearingof"showinterface"countersneverInputqueue:0/75/0/0(size/max/drops/flushes);Totaloutputdrops:0Queueingstrategy:fifoOutputqueue:0/40(size/max)5minuteinputrate0bits/sec,0packets/sec5minuteoutputrate0bits/sec,0packets/sec182979packetsinput,16802150bytes,0nobufferReceived49954broadcasts(0multicast)0runts,0giants,0throttles0inputerrors,0CRC,0frame,0overrun,8ignored0watchdog,20115multicast,0pauseinput0inputpacketswithdribbleconditiondetected3747473packetsoutput,353656347bytes,0underruns--More--Half-duplex,10Mb/s0CRC,HardwareisFastEthernet,addressis0008.a445.ce82(bia0008.a445.ce82)总结CiscoIOS交换机启动时需要检验物理安装、接通交换机电源以及查看控制台的CiscoIOS软件输出。CiscoIOS交换机具有几个状态的LED，在交换机运行正常时，它们通常呈绿色，而在交换机出现故障时，它们会变成琥珀色。只有在交换机通电时，才能执行CiscoCatalystPOST。在初始启动过程中，如果检测到POST测试故障，那么这些故障将被报告给控制台。如果POST成功完成，则可以配置交换机。要首先进入CiscoIOS交换机的用户EXEC模式，才能启动任何模式。要更改模式，必须输入口令。与路由器类似，可以使用