Layer 2 Switching Commands 808
console(config)# interface gi1/0/12
console(config-if-Gi1/0/12)# switchport access vlan 33
Access VLAN does not exist. Creating VLAN 33
switchport dot1q ethertype (Global Configuration)
Use the switchport dot1q ethertype command to define additional QinQ
tunneling TPIDs for matching in the outer VLAN tag of received frames. Use
the no form of the command to remove the configured TPIDs.
Syntax
switchport dot1q ethertype { vman | custom 1-65535 }
no switchport dot1q ethertype { vman | custom 1-65535 }
• vman—Define the Ethertype as 0x88A8.
• custom—Define the Ethertype as a 16 bit user defined value (in decimal).
Default Configuration
802.1Q is the default Ethertype for both inner and outer VLAN TPIDs. The
802.1Q TPID cannot be removed from the configuration.
By default QinQ processing of frames is disabled.
Command Mode
Global Configuration
User Guidelines
This command globally defines additional TPIDs for use by the system for
matching of ingress packets in the outer tag. The switch uses the default
primary TPID 0x8100 and any of the additional TPIDs to match packets in
the outer tag on ingress. A TPID must be configured globally before it can be
applied to an interface. Up to three additional TPIDs can be configured for
acceptance in the outer VLAN tag on the SP port. Packets received on the SP
port which do not contain one of the configured TPIDs or which do not
contain the SP VLAN ID in the outermost VLAN tag are processed by the
port as if they are not part of the QinQ tunnel.
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