思科设备交换机vlan-trunk配置

1、本次讲解vlan trunk配置方法：本例配置模型图命令行：以下为switchA配置：Switch>Switch>enableSwitch#vlan database% Warning: It is recommended to configure VLAN from config mode, as VLAN database mode is being deprecated. Please consult user documentation for configuring VTP/VLAN in config mode.Switch(vlan)#vlan 2 name TztA

2、VLAN 2 added: Name: TztASwitch(vlan)#vlan 3 name TztBVLAN 3 added: Name: TztBSwitch(vlan)#exitAPPLY completed.Exiting.Switch#wrBuilding configuration.OKSwitch#config tEnter configuration commands, one per line. End with CNTL/Z.Switch(config)#int f0/1Switch(config-if)#sw mo acSwitch(config-if)#sw acc

3、 vlan 2Switch(config-if)#int f0/2Switch(config-if)#sw mo acSwitch(config-if)#sw acc vlan 3Switch(config-if)#exitSwitch(config)#exitSwitch#%SYS-5-CONFIG_I: Configured from console by consoleSwitch#show vlanVLAN Name Status Ports- - - -1 default active Fa0/3, Fa0/4, Fa0/5, Fa0/6 Fa0/7, Fa0/8, Fa0/9, F

4、a0/10 Fa0/11, Fa0/12, Fa0/13, Fa0/14 Fa0/15, Fa0/16, Fa0/17, Fa0/18 Fa0/19, Fa0/20, Fa0/21, Fa0/22 Fa0/23, Fa0/24, Gig1/1, Gig1/22 TztA active Fa0/13 TztB active Fa0/21002 fddi-default act/unsup 1003 token-ring-default act/unsup 1004 fddinet-default act/unsup 1005 trnet-default act/unsup VLAN Type S

5、AID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2- - - - - - - - - - -1 enet 100001 1500 - - - - - 0 02 enet 100002 1500 - - - - - 0 03 enet 100003 1500 - - - - - 0 01002 fddi 101002 1500 - - - - - 0 0 1003 tr 101003 1500 - - - - - 0 0 1004 fdnet 101004 1500 - - - ieee - 0 0 1005 trnet 10100

6、5 1500 - - - ibm - 0 0 Remote SPAN VLANs-Primary Secondary Type Ports- - - -Switch#wrBuilding configuration.OKSwitch#conf tEnter 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

7、 all /配置允许所有vlan通过switchASwitch(config-if)#exitSwitch(config)#exitSwitch#Switch#wr /保存已有配置Building configuration.OKSwitch#以下为switchB配置：Switch>enableSwitch#vlan database% Warning: It is recommended to configure VLAN from config mode, as VLAN database mode is being deprecated. Please consult user d

8、ocumentation for configuring VTP/VLAN in config mode.Switch(vlan)#vlan 2 name TztAVLAN 2 added: Name: TztASwitch(vlan)#vlan 3 name TztBVLAN 3 added: Name: TztBSwitch(vlan)#exitAPPLY completed.Exiting.Switch#config tEnter configuration commands, one per line. End with CNTL/Z.Switch(config)#int f0/1Sw

9、itch(config-if)#sw mo accSwitch(config-if)#sw acc vlan 2Switch(config-if)#int f0/2Switch(config-if)#sw mo accSwitch(config-if)#sw acc vlan 3Switch(config-if)#exitSwitch(config)#show vlan % Invalid input detected at '' marker.Switch(config)#exitSwitch#%SYS-5-CONFIG_I: Configured from console

10、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, Fa0/6 Fa0/7, Fa0/8, Fa0/9, Fa0/10 Fa0/11, Fa0/12, Fa0/13, Fa0/14 Fa0/15, Fa0/16, Fa0/17, Fa0/18 Fa0/19, Fa0/20, Fa0/21, Fa0/22 Fa0/23, Fa0/24, Gig1/1, Gig1/22 TztA active Fa0/13 TztB active Fa0

11、/21002 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 02 enet 100002 1500 - - - - - 0 03 enet 100003 1500 - -

12、- - - 0 01002 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#conf tEnter configuration commands, one per line. End with CNTL/Z.Switch(config)#int g1/1Switch(config-if)#switchport mode trunkSwitch(config-if)#%LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/1, changed state to down%LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/1, changed state to upSwitch(config-if)#sw