實驗拓撲:

實驗步驟：

[SW1]vlan batch 2 3    //建立vlan

[SW1]interface GigabitEthernet 0/0/1   //進入介面

[SW1-GigabitEthernet0/0/1]port link-type access  //改為Access鏈路

[SW1-GigabitEthernet0/0/1]port default vlan 2   //加入vlan 2

[SW1]interface GigabitEthernet 0/0/2

[SW1-GigabitEthernet0/0/2]port link-type access

[SW1]-GigabitEthernet0/0/2]port default vlan 3

[SW1]interface Vlanif 2   //進入vlan 2

[SW1-Vlanif2]ip address 192.168.10.254 24  //設定IP地址

[SW1-Vlanif2]undo shutdown  //開啟埠

[SW1]interface Vlanif 3

[SW1-Vlanif3]ip address 192.168.20.254 24

[SW1-Vlanif3]undo shutdown

[SW1]interface GigabitEthernet 0/0/6  //進入介面

[SW1-GigabitEthernet0/0/6]port link-type trunk  //改為trunk鏈路

[SW1-GigabitEthernet0/0/6]port trunk allow-pass vlan 2 3  // 加入 vlan 2  3

SW2也是以上相同的配置

實驗總結 ：內網與外網通過trunk鏈路 實現相同vlan的互通