# 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