三层交换+VLAN+trunk

三层交换+vlan+trunk

valn配置命令

Sw1(config)#valn 10      //创建vlan ID号

Sw1(config-vlan)#name xiaohang    //命名vlan名

Sw1(config)#no vlan 10   //删除vlan

Sw1(config)#interface fastEthernet1/1           //选择分配端口

Sw1(config)#interface range fastEthernet 1/1 -5     //同时还分配多个端口

Sw1(config-if)#switchport mode access         //定义二层端口模式(思科设备默认就是二层端口模式，可省略)

sw1(config-if)#switchport access vlan 10       //把端口加入vlan

sw1(config)#default interface fastEthernet 1/1   //还原接口到默认配置状态

sw2#show vlan-switch brief                 //查看vlan信息

trunk配置命令

sw1(config)#interface fastEthernet 1/15       //进接口

sw1(config-if)#switchport mode trunk        //配置接口为trunk

sw1(config-if)#switchport trunk allowed vlan remove 10    //从trunk中删除某个vlan

sw1(config-if)#switchport trunk allowed vlan add 10      //从trunk中添加某个vlan

sw1#show interfaces fastEthernet 1/15 switchport     //查看接口类型

三层交换配置命令

M1(config)#vlan 10    //加vlan

M1(config)#interface vlan 10   //进vlan

M1(config-if)#ip add 192.168.1.1 255.255.255.0    //配置IP、掩码

例题

sw1 配置

!

no ip routing

vlan 10

valn 20

!

interface FastEthernet1/1

switchport access vlan 10

!

interface FastEthernet1/2

switchport access vlan 20

!

interface FastEthernet1/15

switchport mode trunk

!

interface FastEthernet1/0

switchport mode trunk

sw2 配置

!

no ip routing

!

valn 10

valn 20

!

interface FastEthernet1/3

switchport access vlan 10

!

interface FastEthernet1/4

switchport access vlan 20

!

interface FastEthernet1/15

switchport mode trunk

M1配置

!

interface FastEthernet1/0

switchport mode trunk

!

interface Vlan10

ip address 192.168.1.1 255.255.255.0

!

interface Vlan20

ip address 192.168.2.1 255.255.255.0

!