10.4 QinQ

1.配置基础QinQ

1）SW1配置

[SW1]vlan 100
[SW1]interface GigabitEthernet 0/0/23
[SW1-GigabitEthernet0/0/23]port link-type dot1q-tunnel 
[SW1-GigabitEthernet0/0/23]port default vlan 100
[SW1]interface GigabitEthernet 0/0/24
[SW1-GigabitEthernet0/0/24]port link-type trunk 
[SW1-GigabitEthernet0/0/24]port trunk allow-pass vlan 100

2）SW2配置

[SW2]vlan 100
[SW2]interface GigabitEthernet 0/0/23
[SW2-GigabitEthernet0/0/23]port link-type dot1q-tunnel 
[SW2-GigabitEthernet0/0/23]port default vlan 100
[SW2]interface GigabitEthernet 0/0/24
[SW2-GigabitEthernet0/0/24]port link-type trunk 
[SW2-GigabitEthernet0/0/24]port trunk allow-pass vlan 100

3）SW3配置

[SW3]vlan batch 10 20
[SW3]interface GigabitEthernet 0/0/1 
[SW3-GigabitEthernet0/0/1]port link-type access 
[SW3-GigabitEthernet0/0/1]port default vlan 10
[SW3-GigabitEthernet0/0/1]stp edged-port enable

[SW3]interface GigabitEthernet 0/0/2 
[SW3-GigabitEthernet0/0/2]port link-type access 
[SW3-GigabitEthernet0/0/2]port default vlan 20
[SW3-GigabitEthernet0/0/2]stp edged-port enable

[SW3]interface GigabitEthernet 0/0/23
[SW3-GigabitEthernet0/0/23]port link-type trunk 
[SW3-GigabitEthernet0/0/23]port trunk allow-pass vlan 10 20

4）SW4配置

[sw4]vlan batch 10 20
[sw4]interface GigabitEthernet 0/0/1
[sw4-GigabitEthernet0/0/1]port link-type access 
[sw4-GigabitEthernet0/0/1]port default vlan 10
[sw4-GigabitEthernet0/0/1]stp edged-port enable
[sw4]interface GigabitEthernet 0/0/2
[sw4-GigabitEthernet0/0/2]port link-type access
[sw4-GigabitEthernet0/0/2]port default vlan 20
[sw4-GigabitEthernet0/0/2]stp edged-port enable
[sw4]interface GigabitEthernet 0/0/23
[sw4-GigabitEthernet0/0/23]port link-type trunk
[sw4-GigabitEthernet0/0/23]port trunk allow-pass vlan 10 20

5）PC1pingPC3、PC2pingPC4抓包

6）修改TPID值

[SW1]interface GigabitEthernet 0/0/24
[SW1-GigabitEthernet0/0/24]qinq protocol 88a8
[SW2]interface GigabitEthernet 0/0/24
[SW2-GigabitEthernet0/0/24]qinq protocol 88a8

2.配置灵活QinQ（不同VLAN打不同的外层Tag）

1）SW1配置

[SW1]vlan batch 100 200
[SW1]interface GigabitEthernet 0/0/24
[SW1-GigabitEthernet0/0/24]port link-type  trunk 
[SW1-GigabitEthernet0/0/24]port trunk allow-pass vlan 100 200
[SW1]interface GigabitEthernet 0/0/23
[SW1-GigabitEthernet0/0/23]port link-type hybrid 
[SW1-GigabitEthernet0/0/23]port hybrid untagged vlan 100 200
//允许VLAN100 200去标签通过
[SW1-GigabitEthernet0/0/23]qinq vlan-translation enable
//使能VLAN转换功能
[SW1-GigabitEthernet0/0/23]port vlan-stacking vlan 10 stack-vlan 100
[SW1-port-group-vlan-stacking]port vlan-stacking vlan 20 stack-vlan 200
//不同VLAN打上不同外层Tag

2）SW2配置

[SW2]vlan batch 100 200
[SW2]interface GigabitEthernet 0/0/24
[SW2-GigabitEthernet0/0/24]port link-type  trunk 
[SW2-GigabitEthernet0/0/24]port trunk allow-pass vlan 100 200
[SW2]interface GigabitEthernet 0/0/23
[SW2-GigabitEthernet0/0/23]port link-type hybrid 
[SW1-GigabitEthernet0/0/23]port hybrid untagged vlan 100 200
[SW2-GigabitEthernet0/0/23]qinq vlan-translation enable
[SW2-GigabitEthernet0/0/23]port vlan-stacking vlan 10 stack-vlan 100
[SW2-port-group-vlan-stacking]port vlan-stacking vlan 20 stack-vlan 200