1、本次講解vlantrunk配置方法：命令行：以下為switchA配置：SwitchSwitchenableSwitch#vlandatabase%Warning:ItisrecommendedtoconfigureVLANfromconfigmode,asVLANdatabasemodeisbeingdeprecated.PleaseconsultuserdocumentationforconfiguringVTP/VLANinconfigmode.Switch(vlan)#vlan2nameTztAVLAN2added:Name:TztASwitch(vlan)#vlan3nameTztBV

2、LAN3added:Name:TztBSwitch(vlan)#exitAPPLYcompleted.ExitingSwitch#wrBuildingconfiguration.OKSwitch#configtEnterconfigurationcommands,oneperline.EndwithCNTL/Z.Switch(config)#intf0/1Switch(config-if)#swmoacSwitch(config-if)#swaccvlan2Switch(config-if)#intf0/2Switch(config-if)#swmoacSwitch(config-if)#sw

3、accvlan3Switch(config-if)#exitSwitch(config)#exitSwitch#%SYS-5-CONFIG_I:ConfiguredfromconsolebyconsoleSwitch#showvlanVLANName1default2TztA3TztB1002fddi-default1003token-ring-default1004fddinet-default1005trnet-defaultStatusPortsactiveFa0/3,Fa0/4,Fa0/5,Fa0/6Fa0/7,Fa0/8,Fa0/9,Fa0/10Fa0/11,Fa0/12,Fa0/1

4、3,Fa0/14Fa0/15,Fa0/16,Fa0/17,Fa0/18Fa0/19,Fa0/20,Fa0/21,Fa0/22Fa0/23,Fa0/24,Gig1/1,Gig1/2activeFa0/1activeFa0/2act/unsupact/unsupact/unsupact/unsupVLANTypeSAIDMTUParentRingNoBridgeNoStpBrdgModeTrans1Trans21enet1000011500-002enet1000021500-003enet1000031500-001002fddi1010021500-001003tr1010031500-001

5、004fdnet1010041500-ieee-001005trnet1010051500-ibm-00RemoteSPANVLANsPrimarySecondaryTypePortsSwitch#wrBuildingconfiguration.OKSwitch#conftEnterconfigurationcommands,oneperline.EndwithCNTL/Z.Switch(config)#intg1/1/進(jìn)入端口g1/1配置vlantrunk模式Switch(config-if)#swtrunkencaSwitch(config-if)#swtrunkallowedvlanal

6、l/配置允許所有vlan通過switchASwitch(config-if)#exitSwitch(config)#exitSwitch#Switch#wr/保存已有配置Buildingconfiguration.OKSwitch#以下為switchB配置：SwitchenableSwitch#vlandatabase%Warning:ItisrecommendedtoconfigureVLANfromconfigmode,asVLANdatabasemodeisbeingdeprecated.PleaseconsultuserdocumentationforconfiguringVTP/VL

7、ANinconfigmode.Switch(vlan)#vlan2nameTztAVLAN2added:Name:TztASwitch(vlan)#vlan3nameTztBVLAN3added:Name:TztBSwitch(vlan)#exitAPPLYcompleted.ExitingSwitch#configtEnterconfigurationcommands,oneperline.EndwithCNTL/Z.Switch(config)#intf0/1Switch(config-if)#swmoaccSwitch(config-if)#swaccvlan2Switch(config

8、-if)#intf0/2Switch(config-if)#swmoaccVLANName1defaultTztATztBfddi-defaulttoken-ring-defaultfddinet-defaulttrnet-defaultPrimarySecondaryTypePortsSwitch(config-if)#swaccvlan3Switch(config-if)#exitSwitch(config)#showvlanA%Invalidinputdetectedatamarker.Switch(config)#exitSwitch#%SYS-5-CONFIG_I:Configure

9、dfromconsolebyconsoleSwitch#showvlan/顯示所有vlan配置信息StatusPortsactiveFa0/3,Fa0/4,Fa0/5,Fa0/6Fa0/7,Fa0/8,Fa0/9,Fa0/10Fa0/11,Fa0/12,Fa0/13,Fa0/14Fa0/15,Fa0/16,Fa0/17,Fa0/18Fa0/19,Fa0/20,Fa0/21,Fa0/22Fa0/23,Fa0/24,Gig1/1,Gig1/2activeFa0/1activeFa0/2act/unsupact/unsupact/unsupact/unsupVLANTypeSAIDMTUParent

10、RingNoBridgeNoStpBrdgModeTrans1Trans21enet1000011500-002enet1000021500-003enet1000031500-001002fddi1010021500-001003tr1010031500-001004fdnet1010041500-ieee-001005trnet1010051500-ibm-00RemoteSPANVLANsSwitch#conftEnterconfigurationcommands,oneperline.EndwithCNTL/Z.Switch(config)#intg1/1Switch(config-if)#switchportmodetrunkSwitch(config-if)#%LINEPROTO-5-UPDOWN:LineprotocolonInterfaceGigabitEthernet1/1,changedstatetodown%LINEPROTO-5-UPDOWN:LineprotocolonInterfaceGigabitEthernet1/1,changedstatetoupSwitch(config-if)#switchporttrunkallowedvla