思科设备三层交换机的vlan间通信配置.doc

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1、本次主要讲解三层交换实现vlan间的相互通信：本例配置模型图命令行：swA配置命令：Switch>enableSwitch#vlandatabase//进入vlan配置模式%Warning:ItisrecommendedtoconfigureVLANfromconfigmode,asVLANdatabasemodeisbeingdeprecated.PleaseconsultuserdocumentationforconfiguringVTP/VLANinconfigmode.Switch(vlan)#vlan2nameTztA/

2、/在swA上创建vlan2名为TztAVLAN2added:Name:TztASwitch(vlan)#vlan3nameTztB//在swA上创建vlan3名为TztBVLAN3added:Name:TztBSwitch(vlan)#exitAPPLYcompleted.Exiting....Switch#conftEnterconfigurationcommands,oneperline.EndwithCNTL/Z.Switch(config)#intf0/2Switch(config-if)#switchportmodeac

3、cessSwitch(config-if)#switchportaccessvlan2//将f0/2划分给vlan2Switch(config-if)#exitSwitch(config)#intf0/3Switch(config-if)#switchportmodeaccessSwitch(config-if)#switchportaccessvlan3//将f0/3划分给vlan3Switch(config-if)#exitSwitch(config)#intf0/1Switch(config-if)#switchportmo

4、detrunk//配置与三层设备连接的f0/1为trunk模式%LINEPROTO-5-UPDOWN:LineprotocolonInterfaceFastEthernet0/1,changedstatetodown%LINEPROTO-5-UPDOWN:LineprotocolonInterfaceFastEthernet0/1,changedstatetoupSwitch(config-if)#switchporttrunkallowedvlanall//允许所有vlan通过f0/1端口Switch(config-if)#ex

5、itSwitch(config)#exitSwitch#%SYS-5-CONFIG_I:ConfiguredfromconsolebyconsoleSwitch#wrBuildingconfiguration...[OK]Switch#（三层交换机）Msw命令配置：Switch>Switch>enableSwitch#vlandatabase//进入vlan配置模式%Warning:ItisrecommendedtoconfigureVLANfromconfigmode,asVLANdatabasemodeisbeingdepre

6、cated.PleaseconsultuserdocumentationforconfiguringVTP/VLANinconfigmode.Switch(vlan)#vlan2nameTztA//在Msw上创建vlan2名为TztAVLAN2added:Name:TztASwitch(vlan)#vlan3nameTztB//在Msw上创建vlan2名为TztAVLAN3added:Name:TztBSwitch(vlan)#exitAPPLYcompleted.Exiting....Switch#conftEnterconfi

7、gurationcommands,oneperline.EndwithCNTL/Z.Switch(config)#intf0/1Switch(config-if)#switchportmodetrunk//配置三层设备与二层设备连接的f0/1为trunk模式Commandrejected:Aninterfacewhosetrunkencapsulationis"Auto"cannotbeconfiguredto"trunk"mode.Switch(config-if)#switchporttrunkallowedvlanall//

8、允许所有vlan通过f0/1端口Switch(config-if)#noshutdown//激活端口Switch(config-if)#exitSwitch(config)#iprouting//使用三层设备的路由功能Switch(config)#