本次讲解本次讲解 vlan trunk 配置方法：配置方法：本例配置模型图命令行：命令行：以下为以下为 switchA 配置配置： Switch Switchenable Switch#vlan database % Warning: It is recommended to configure VLAN from config mode,as VLAN database mode is being deprecated. Please consult userdocumentation for configuring VTP/VLAN in config mode.Switch(vlan)#vlan 2 name TztA VLAN 2 added:Name: TztA Switch(vlan)#vlan 3 name TztB VLAN 3 added:Name: TztB Switch(vlan)#exit APPLY completed. Exiting.Switch#wr Building configuration. OK Switch#config t Enter configuration commands, one per line. End with CNTL/Z. Switch(config)#int f0/1 Switch(config-if)#sw mo ac Switch(config-if)#sw acc vlan 2 Switch(config-if)#int f0/2 Switch(config-if)#sw mo ac Switch(config-if)#sw acc vlan 3 Switch(config-if)#exit Switch(config)#exit Switch# %SYS-5-CONFIG_I: Configured from console by consoleSwitch#show vlanVLAN Name Status Ports - - - - 1 default active Fa0/3, 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, Gig1/2 2 TztA active Fa0/1 3 TztB active Fa0/2 1002 fddi-default act/unsup 1003 token-ring-default act/unsup 1004 fddinet-default act/unsup 1005 trnet-default act/unsup VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2 - - - - - - - - - - - 1 enet 100001 1500 - - - - - 0 0 2 enet 100002 1500 - - - - - 0 0 3 enet 100003 1500 - - - - - 0 0 1002 fddi 101002 1500 - - - - - 0 0 1003 tr 101003 1500 - - - - - 0 0 1004 fdnet 101004 1500 - - - ieee - 0 0 1005 trnet 101005 1500 - - - ibm - 0 0 Remote SPAN VLANs-Primary Secondary Type Ports - - - - Switch#wr Building configuration. OK Switch#conf t Enter configuration commands, one per line. End with CNTL/Z.Switch(config)#int g1/1 /进入端口 g1/1 配置 vlan trunk 模式 Switch(config-if)#sw trunk encaSwitch(config-if)#sw trunk allowed vlan all /配置允许所有 vlan 通过 switchA Switch(config-if)#exit Switch(config)#exit Switch#Switch#wr /保存已有配置 Building configuration. OK Switch#以下为以下为 switchB 配置：配置： Switchenable Switch#vlan database % Warning: It is recommended to configure VLAN from config mode,as VLAN database mode is being deprecated. Please consult userdocumentation for configuring VTP/VLAN in config mode.Switch(vlan)#vlan 2 name TztA VLAN 2 added:Name: TztA Switch(vlan)#vlan 3 name TztB VLAN 3 added:Name: TztB Switch(vlan)#exit APPLY completed. Exiting. Switch#config t Enter configuration commands, one per line. End with CNTL/Z. Switch(config)#int f0/1 Switch(config-if)#sw mo acc Switch(config-if)#sw acc vlan 2 Switch(config-if)#int f0/2 Switch(config-if)#sw mo accSwitch(config-if)#sw acc vlan 3 Switch(config-if)#exit Switch(config)#show vlan % Invalid input detected at marker.Switch(config)#exit Switch# %SYS-5-CONFIG_I: Configured from console by consoleSwitch#show vlan /显示所有 vlan 配置信息VLAN Name Status Ports - - - - 1 default active Fa0/3, 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, Gig1/2 2 TztA active Fa0/1 3 TztB active Fa0/2 1002 fddi-default act/unsup 1003 token-ring-default act/unsup 1004 fddinet-default act/unsup 1005 trnet-default act/unsup VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2 - - - - - - - - - - - 1 enet 100001 1500 - - - - - 0 0 2 enet 100002 1500 - - - - - 0 0 3 enet 100003 1500 - - - - - 0 0 1002 fddi 101002 1500 - - - - - 0 0 1003 tr 101003 1500 - - - - - 0 0 1004 fdnet 101004 1500 - - - ieee - 0 0 1005 trnet 101005 1500 - - - ibm - 0 0 Remote SPAN VLANs -