custom 802.1Q ethertype on a trunk port, incoming fram es containing that
ethertype are assigned to the VLAN contained in the tag followin g the
ethertype field, as they would be with a standard 802.1Q trunk. Frame s
arriving on the port containing any other ethertype a re looke d upon as
untagged frames, and assigned to the native VLAN of that port.
• All ports on the switch will be set to the same ethertype.
Example
Console(config)#interface ethernet 1/1
Console(config-if)#switchport dot1q-tunnel tpid 9100
Console(config-if)#
Related Commands
show interfaces switchport (27-11)
show dot1q-tunnel
This command displays information about QinQ tunnel ports.
Command Mode
Privileged Exec
Example
Console(config)#dot1q-tunnel syst em-tunnel-control
Console(config)#interface ethernet 1/ 1
Console(config-if)#switchport dot 1q-tunn el mode a ccess
Console(config-if)#interface ethern et 1/2
Console(config-if)#switchport dot 1q-tunn el mode u plink
Console(config-if)#end
Console#show dot1q-tunnel
Current double-tagged status of the system is Enabled
The dot1q-tunnel mode of the set interface 1/1 i s Acce ss mo de , TPI D is 0x 8100 .
The dot1q-tunnel mode of the set interface 1/2 i s Upli nk mo de , TPI D is 0x 8100 .
The dot1q-tunnel mode of the set interface 1/3 i s Norm al mo de , TPI D is 0x 8100 .
.
Related Commands
switchport dot1q-tunnel mode (34-15)
34-17
Configuring IEEE 802.1Q Tunneling
34
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