VTP协议实验详细配置步骤

    步骤6

    创建VLAN 2和VLAN 3的VLAN，按照前面的配置要求，将每个交换机将端口划归到各自的VLAN。

    sw1(vlan)#vlan 2
    VLAN 2 added:
    Name: VLAN0002
    sw1(vlan)#vlan 3
    VLAN 3 added:
    Name: VLAN0003
    sw1(vlan)#exit
    APPLY completed.
    Exiting....
    sw1#config t
    Enter configuration commands, one per line.  End with CNTL/Z.
    sw1(config)#interface fastethernet0/1
    sw1(config-if)#switchport mode access
    sw1(config-if)#switchport access vlan 2
    sw1(config-if)#exit
    sw1(config)#interface fastethernet0/2
    sw1(config-if)#switchport access vlan 3
    sw1(config-if)#

      步骤7

    使用命令show vlan brief检验是否已经有valn2、3。

    sw2#show vlan brief

    VLAN Name                             Status    Ports

    ---- -------------------------------- --------- -------------------------------
    1    default                               active    Fa0/1, Fa0/2, Fa0/3, Fa0/4
                                                Fa0/5, Fa0/6, Fa0/7, Fa0/8
                                                Fa0/9, Fa0/10, Fa0/13, Fa0/14
                                                Fa0/15, Fa0/16, Fa0/17, Fa0/18
                                                Fa0/19, Fa0/20, Fa0/21, Fa0/22
                                                Fa0/23, Fa0/24
    1002 fddi-default                     active
    1003 token-ring-default               active
    1004 fddinet-default                  active
    1005 trnet-default                    active

    我们看出并没有，由于刚刚VTP服务器设置了密码，这样就将CISCO管理域设为了安全模式，这样防止未经授权的交换机加入到用户的域内。刚才说明了这点。这时我们只须在SW2上设置密码即可。

    sw2#config t
    Enter configuration commands, one per line.  End with CNTL/Z.
    sw2(config)#vtp password xxx
    Setting device VLAN database password to xxx.
    sw2(config)#

    或许刚刚设完密码马上验证还会没有，这时不须紧张，由于交换机每五分钟发送一次通告或者有变化时，它通告邻接交换机目前的VTP域名和配置修订号。稍等一会在验证。

    sw2#show vlan brief

    VLAN Name                             Status    Ports

    ---- -------------------------------- --------- -------------------------------

    1    default                          active    Fa0/1, Fa0/2, Fa0/3, Fa0/4
                                                Fa0/5, Fa0/6, Fa0/7, Fa0/8
                                                Fa0/9, Fa0/10, Fa0/13, Fa0/14
                                                Fa0/15, Fa0/16, Fa0/17, Fa0/18
                                                Fa0/19, Fa0/20, Fa0/21, Fa0/22
                                                Fa0/23, Fa0/24
    2    VLAN0002                         active
    3    VLAN0003                         active
    1002 fddi-default                     active
    1003 token-ring-default               active
    1004 fddinet-default                  active
    1005 trnet-default                    active

     sw2#
    
     在SW2上人工建立vlan4、vlan5

     sw2#vlan database
     sw2(vlan)#vlan 4
     VLAN 4 added:
     Name: VLAN0004
     sw2(vlan)#vlan 5
     VLAN 5 added:
     Name: VLAN0005
     sw2(vlan)#exit
     In CLIENT state, no apply attempted.
     Exiting....
     验证：
     sw2#show vlan brief

     VLAN Name                             Status    Ports

     ---- -------------------------------- --------- -------------------------------

     1    default                          active    Fa0/1, Fa0/2, Fa0/3, Fa0/4
                                                Fa0/5, Fa0/6, Fa0/7, Fa0/8
                                                Fa0/9, Fa0/10, Fa0/13, Fa0/14
                                                Fa0/15, Fa0/16, Fa0/17, Fa0/18
                                                Fa0/19, Fa0/20, Fa0/21, Fa0/22
                                                Fa0/23, Fa0/24
     2    VLAN0002                         active
     3    VLAN0003                         active
     1002 fddi-default                     active
     1003 token-ring-default               active
     1004 fddinet-default                  active
     1005 trnet-default                    active

     sw2#
    
     这时大家会发现明明看到已经建立vlan4、5怎么会没有。大家有没有注意到交换机已经告诉大家In CLIENT state, no apply attempted.VTP客户模式不能创建，删除，和修改vlan。按照前面的配置要求，将每个交换机将端口划归到各自的VLAN。

     sw2#config t
     Enter configuration commands, one per line.  End with CNTL/Z.
     sw2(config)#interface fastethernet0/1
     sw2(config-if)#switchport mode access
     sw2(config-if)#switchport access vlan 2
     sw2(config-if)#exit
     sw2(config)#interface fastethernet0/2
     sw2(config-if)#switchport access vlan 3
     sw2(config-if)#
    
     测试连通：

     在A上用ping命令测试和C的连通性:

     C:\Documents and Settings\Administrator>ping 1.1.1.1

     Pinging 1.1.1.1 with 32 bytes of data:

     Reply from 1.1.1.1: bytes=32 time<10ms TTL=128
     Reply from 1.1.1.1: bytes=32 time<10ms TTL=128
     在B上用ping命令测试和D的连通性:
     C:\Documents and Settings\Administrator>ping 1.1.1.2

     Pinging 1.1.1.2 with 32 bytes of data:

     Reply from 1.1.1.2: bytes=32 time<10ms TTL=128
     Reply from 1.1.1.2: bytes=32 time<10ms TTL=128

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