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Note: Only the ports (user port, uplink port) not belong to any VLAN can be
added to the same tunnel
Following figure is an example of QinQ VLAN application
Refer to the figure of QinQ application in previous page, a QinQ tunnel using
VLAN100 wants to be created for Sales VLAN10 across the public network.
Port1 on left-side switch connects to Sales VLAN100 client. Port2 of switch
connects to the public network. The following commands needs to be set:
qinq enable
qinq tpid 8100
qinq userport enable 1