4第四节网络设备介绍.ppt

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1、第四节网络设备介绍IOS介绍交换机线速转发每接口冲突域数据交换基于mac通过vlan，能实现广播域范围控制交换机2924三层交换机基于硬件的路由及包交换二层交换与三层路由集成375035506506多层交换机全完集成二、三、四层功能于一体9000路由器路由表的学习和维护包的转发25141751262136407200，7500一般外部结构ConfigurationinformationcancomefrommanysourcesConsolePortAuxiliaryPortInterfacesVirtualTerminalsvty0-4TFTPServerNetworkManageme

2、ntStationConsoleInterfacesAuxiliaryRAMNVRAMFlashROM硬件结构路由器交换机IOS启动顺序RAMROMBootstrapLoadBootstrapTFTPServerFlashROMCiscoInternetworkOperatingSystemLocateandLoadOperatingSystemConsoleTFTPServerNVRAMConfigurationFileLocateandLoadConfigurationFileorEnterSetupModeIOS工作模式Router>UserEXECModeLimitedexamin

3、ationofrouter.Remoteaccess.Router#PrivilegedEXECModeDetailedexaminationofrouter.Debuggingandtesting.Filemanipulation.Remoteaccess.SetupModePrompteddialogusedtoestablishaninitialconfiguration.Router(config)#GlobalConfigurationModeSimpleconfigurationcommands.Complexandmultilineconfigurations.Oth

4、erConfigurationModesRouter(config-mode)#RecoveryfromacatastropheinthecaseofalostpasswordortheoperatingsystembeingaccidentallyerasedfromFlash.RXBOOTMode注册码值决定启动文件位置Router#configureterminalRouter(config)#config-register0x10F[Ctrl-Z]Configuration-RegisterValue0x0MeaningUseROMmonitormode(Manuallybo

5、otusingthebcommand)0x1AutomaticallybootfromROM(defaultifrouterhasnoflash)0x2to0xFExamineNVRAMforbootsystemcommands(0x2defaultifrouterhasFlash)ConfigurationRegisterbits3,2,1,and0setbootoption工作模式的表现Router(config)#Router>Router#OtherConfigurationModesExitUserEXECmodePrivilegedEXECmodeGlob

6、alconfigurationmodeInterfaceSubinterfaceControllerMap-listMap-classLineRouterIPX-routerRoute-mapConfigurationModeRouter(config-if)#Router(config-subif)#Router(config-controller)#Router(config-map-list)#Router(config-map-class)#Router(config-line)#Router(config-router)#Router(config-ipx-router)#Rou

7、ter(config-route-map)#Prompt