# Delete all the selective QinQ configuration of an interface.

<HUAWEI> system-view
[HUAWEI] interface gigabitethernet 0/0/1
[HUAWEI-GigabitEthernet0/0/1] undo port vlan-stacking all

# Delete the configuration of an inner VLAN in selective QinQ.

<HUAWEI> system-view
[HUAWEI] interface gigabitethernet 0/0/1
[HUAWEI-GigabitEthernet0/0/1] undo port vlan-stacking vlan 3 stack-vlan 10   //Delete the selective QinQ configuration with VLAN 3 in the inner tag.

More Information: S Series Switches Common Operation Guide