qinq

802. asia slot99 1Q-in-802. bug club login 1Q (QinQ), defined by IEEE 802 1ad, expands VLAN space by adding an additional 802 1Q tag to 802 1Q-tagged packets It is also called VLAN stacking or double VLAN QinQ is widely used on carriers' backbone networks By encapsulating the VLAN tag of a private network in the VLAN tag of a public network, QinQ enables packets with