一、创建vlan

1、搭建拓扑如下

2、创建两个vlan，分别为vlan10和vlan20

PC0和PC2接console线到交换机，如下

打开PC0的Termina开始配置交换机1

配置过程如下(交换机2配置也一样)

Switch>en Switch>enable Switch# Switch#conf t Enter configuration commands, one per line. End with CNTL/Z. Switch(config)#vlan 10 Switch(config-vlan)#exit Switch(config)#vlan 20 Switch(config-vlan)#end Switch# %SYS-5-CONFIG_I: Configured from console by console Switch#show vlan 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, Fa0/11, 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 Gig0/1, Gig0/2 10 VLAN0010 active 20 VLAN0020 active 1002 fddi-default active 1003 token-ring-default active 1004 fddinet-default active 1005 trnet-default active VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2 ---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------ 1 enet 100001 1500 - - - - - 0 0 10 enet 100010 1500 - - - - - 0 0 20 enet 100020 1500 - - - - - 0 0 Switch#

二 、将接口划分到不同的vlan

将f0/1划分到vlan10,f0/11划分到vlan20

打开PC0的Termina开始配置交换机1

配置过程如下(交换机2配置也一样)

Switch#conf t Enter configuration commands, one per line. End with CNTL/Z. Switch(config)#int f0/1 Switch(config-if)#swi acc vlan 10 Switch(config-if)#exit Switch(config)#int f0/11 Switch(config-if)#swi acc vlan 20 Switch(config-if)#end Switch# %SYS-5-CONFIG_I: Configured from console by console Switch#show vlan VLAN Name Status Ports ---- -------------------------------- --------- ------------------------------- 1 default active Fa0/2, Fa0/3, Fa0/4, Fa0/5 Fa0/6, Fa0/7, Fa0/8, Fa0/9 Fa0/10, 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, Gig0/1, Gig0/2 10 VLAN0010 active Fa0/1 20 VLAN0020 active Fa0/11 1002 fddi-default active 1003 token-ring-default active 1004 fddinet-default active 1005 trnet-default active VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2 ---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------ 1 enet 100001 1500 - - - - - 0 0 10 enet 100010 1500 - - - - - 0 0 20 enet 100020 1500 - - - - - 0 0 1002 fddi 101002 1500 - - - - - 0 0

三、跨交换机划分vlan(连接俩个交换机)

打开PC0的Termina开始配置交换机1

配置过程如下

Switch#conf t Enter configuration commands, one per line. End with CNTL/Z. Switch(config)#int f0/24 Switch(config-if)#swi Switch(config-if)#switchport mode ? access Set trunking mode to ACCESS unconditionally dynamic Set trunking mode to dynamically negotiate access or trunk mode trunk Set trunking mode to TRUNK unconditionally Switch(config-if)#switchport mode trunk Switch(config-if)# %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/24, changed state to down %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/24, changed state to up Switch(config-if)#end Switch# %SYS-5-CONFIG_I: Configured from console by console Switch#show vlan VLAN Name Status Ports ---- -------------------------------- --------- ------------------------------- 1 default active Fa0/2, Fa0/3, Fa0/4, Fa0/5 Fa0/6, Fa0/7, Fa0/8, Fa0/9 Fa0/10, Fa0/12, Fa0/13, Fa0/14 Fa0/15, Fa0/16, Fa0/17, Fa0/18 Fa0/19, Fa0/20, Fa0/21, Fa0/22 Fa0/23, Gig0/1, Gig0/2 10 VLAN0010 active Fa0/1 20 VLAN0020 active Fa0/11 1002 fddi-default active 1003 token-ring-default active 1004 fddinet-default active 1005 trnet-default active VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2 ---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------ 1 enet 100001 1500 - - - - - 0 0 10 enet 100010 1500 - - - - - 0 0 20 enet 100020 1500 - - - - - 0 0 1002 fddi 101002 1500 - - - - - 0 0

四、测试

1:pc0 ping pc2 预测 成功

2:pc1 ping pc3 预测 成功

3:pc0 ping pc3 预测 失败

4:pc1 ping pc2 预测 失败

五、所用命令及作用

命令作用使用模式enable由用户模式进入特权模式用户模式configure terminal进入配置特权模式interface f0/1进入f0/1接口配置模式配置模式switchport access vlan 10将当前接口划分到vlan10中配置模式(接口)vlan 10创建vlan10配置模式switchport mode trunk将改接口配置成trunk模式配置模式(接口)exit返回上一级模式任意end返回到特权模式任意show vlan显示vlan特权模式

用户模式:Switch>

特权模式:Switch#

配置模式Switch(config)