VTP的配置（二）

接上一部分

6.关闭sw2连接sw1的端口，配置连接sw3的端口

 

sw2(config)#interface f0/1 sw2(config-if)#shutdown sw2(config-if)#exit sw2(config)#interface f0/2 sw2(config-if)#switchport mode trunk sw2(config-if)#switchport trunk encapsulation dot1q sw2(config-if)#end

 

7.配置sw3为VTP server模式

sw3#vlan database sw3(vlan)#vtp server  //sw3为server Device mode already VTP SERVER. sw3(vlan)#vtp domain cisco  //域名必须相同 Changing VTP domain name from NULL to cisco sw3(vlan)#exit APPLY completed. Exiting....

 

8.在sw3上创建vlan2，vlan3，vlan4，vlan5

sw3#vlan database sw3(vlan)#vlan 2 VLAN 2 added:     Name: VLAN0002 sw3(vlan)#exit APPLY completed. Exiting.... sw3#vlan database sw3(vlan)#vlan 3 VLAN 3 added:     Name: VLAN0003 sw3(vlan)#exit APPLY completed. Exiting.... sw3#vlan database sw3(vlan)#vlan 4 VLAN 4 added:     Name: VLAN0004 sw3(vlan)#exit APPLY completed. Exiting.... sw3#vlan database sw3(vlan)#vlan 5 VLAN 5 added:     Name: VLAN0005 sw3(vlan)#exit APPLY completed. Exiting....

 

9.再次查看sw2的vlan信息

sw2#show vlan-switch br   VLAN Name                         Status    Ports ---- -------------------------------- --------- ------------------------------- 1    default                          active    Fa0/0, Fa0/1, 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 2    VLAN0002                     active    3    VLAN0003                     active    4    VLAN0004                     active    5    VLAN0005                     active  //sw2学习到了sw3的vlan信息   1002 fddi-default                      active    1003 token-ring-default                 active    1004 fddinet-default                   active    1005 trnet-default                     active

 

10.查看sw2的VTP状态

sw2#show vtp status VTP Version                     : 2 Configuration Revision            : 4  //配置版本号高的覆盖掉了版本号低的 Maximum VLANs supported locally  : 256 Number of existing VLANs         : 9 VTP Operating Mode              : Client VTP Domain Name                : cisco VTP Pruning Mode                : Disabled VTP V2 Mode                    : Disabled VTP Traps Generation              : Disabled MD5 digest                      : 0x2B 0x96 0xBB 0x47 0x66 0xB7 0x0D 0xA3 Configuration last modified by 0.0.0.0 at 3-1-02 00:32:04

 

11.打开sw2连接sw1的接口

sw2(config)#int f0/1 sw2(config-if)#no shut

 

12.在sw1上查看vlan信息

sw1#show vlan-switch brief   VLAN Name                          Status    Ports ---- -------------------------------- --------- ------------------------------- 1    default                          active    Fa0/0, Fa0/2, 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 2    VLAN0002                       active     3    VLAN0003                       active    4    VLAN0004                       active    5    VLAN0005                       active  //sw1学习了sw2的vlan信息    1002 fddi-default                        active    1003 token-ring-default                   active    1004 fddinet-default                      active    1005 trnet-default                        active

 

13.在sw1上查看VTP信息

 

sw1#show vtp status VTP Version                     : 2 Configuration Revision           : 4  //sw1的修订号变成了4 Maximum VLANs supported locally : 256 Number of existing VLANs        : 9 VTP Operating Mode             : Server VTP Domain Name                : cisco VTP Pruning Mode                : Disabled VTP V2 Mode                    : Disabled VTP Traps Generation             : Disabled MD5 digest                      : 0x2B 0x96 0xBB 0x47 0x66 0xB7 0x0D 0xA3 Configuration last modified by 0.0.0.0 at 3-1-02 00:32:04 Local updater ID is 0.0.0.0 (no valid interface found)

通过以上实验说明配置了VTP的交换机低修订号的交换机会去同步高修订号的交换机上的vlan信息，但前提是两个交换机配置了trunk链路。