路由器配置：

命名DCN-2655：

Router>ena
Router#config 
Router_config#hostname RT    
RT_config#

配置子接口：

RT_config#interface gigaEthernet 0/3.10
RT_config_g0/3.10#ip address 192.168.10.1 255.255.255.0
RT_config_g0/3.10#encapsulation dot1Q 10 //对应交换机vlan10
RT_config_g0/3.10#no shutdown 
RT_config_g0/3.10#exit
RT_config#
RT_config#interface gigaEthernet 0/3.20
RT_config_g0/3.10#ip address 192.168.20.1 255.255.255.0
RT_config_g0/3.10#encapsulation dot1Q 20 //对应交换机vlan20
RT_config_g0/3.10#no shutdown 
RT_config_g0/3.10#exit
RT_config#

交换机配置：

命名交换机：

CS6200-28X-EI>ena
CS6200-28X-EI#config terminal 
CS6200-28X-EI(config)#hostname SW1
SW1(config)#

创建两个vlan，vlan10/vlan20其对应路由器子接口gi0/3.10/gi0/3.20：

SW1(config)#interface ethernet 1/0/1
SW1(config-if-ethernet1/0/1)#switchport mode access //将端口配置为access模式
SW1(config-if-ethernet1/0/1)#switchport access vlan 10
Set the port Ethernet1/0/1 access vlan 10 successfully //表示已经加入vlan
SW1(config-if-ethernet1/0/1)#no shutdown
SW1(config-if-ethernet1/0/1)#exit 
SW1(config)#interface ethernet 1/0/10
SW1(config-if-ethernet1/0/10)#switchport mode access  //将端口配置为access模式
SW1(config-if-ethernet1/0/10)#switchport access vlan 20  
Set the port Ethernet1/0/10 access vlan 20 successfully  //表示已经加入vlan
SW1(config-if-ethernet1/0/10)#no shutdown
SW1(config-if-ethernet1/0/10)#exit 
SW1(config)#

配置et1/0/24端口为trank模式：

SW1(config)#interface ethernet 1/0/24
SW1(config-if-ethernet1/0/24)#switchport mode trunk 
Set the port Ethernet1/0/24 mode Trunk successfully
SW1(config-if-ethernet1/0/24)#no shutdown 
SW1(config-if-ethernet1/0/24)#exit

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