Layer 2 Switching Commands 798show dot1q-tunnelUse the show dot1q-tunnel command to display the QinQ status for eachinterface.Syntaxshow dot1q-tunnel [ interface interface-id ]Default ConfigurationIf no interfaces are specified, information is shown for all interfaces.Command ModePrivileged Exec mode and all show modesUser GuidelinesUp to three additional TPIDs can be configured. The 802.1Q tag is pre-defined in the system and cannot be removed.It is not possible to configure an inner TPID value other than 0x8100.The primary TPID is shown in the EtherType column. The primary TPID isplaced in the outer tag for traffic egressing the interface. The interface willprocess incoming traffic as double tagged if any of the configured TPIDs ispresent in the frames outer VLAN tag. Traffic with a TPID other than theconfigured TPID is processed normally, i.e. as if it is not double tagged.Exampleconsole(config)#show dot1q-tunnel interface allInterface Mode EtherType--------- ------- --------------Gi1/0/1 Disable 802.1Gi1/0/2 Disable 802.1Gi1/0/3 Disable 802.1Gi1/0/4 Disable 802.1Gi1/0/5 Disable 802.1Gi1/0/6 Disable 802.1
