TP-Link TL-SG5426 User Guide - Page 419
switchport dot1q-tunnel tpid, Related Commands, show dot1q-tunnel, Syntax, Default Setting
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4 Command Line Interface switchport dot1q-tunnel tpid This command sets the Tag Protocol Identifier (TPID) value of a tunnel port. Use the no form to restore the default setting. Syntax switchport dot1q-tunnel tpid tpid no switchport dot1q-tunnel tpid tpid - Sets the ethertype value for 802.1Q encapsulation. This identifier is used to select a nonstandard 2-byte ethertype to identify 802.1Q tagged frames. The standard ethertype value is 0x8100. (Range: 0800-FFFF hexadecimal) Default Setting 0x8100 Command Mode Interface Configuration (Ethernet, Port Channel) Command Usage • Use the switchport dot1q-tunnel tpid command to set a custom 802.1Q ethertype value on the selected interface. This feature allows the switch to interoperate with third-party switches that do not use the standard 0x8100 ethertype to identify 802.1Q-tagged frames. For example, 0x1234 is set as the custom 802.1Q ethertype on a trunk port, incoming frames containing that ethertype are assigned to the VLAN contained in the tag following the ethertype field, as they would be with a standard 802.1Q trunk. Frames arriving on the port containing any other ethertype are looked 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 (4-125) show dot1q-tunnel This command displays information about QinQ tunnel ports. Command Mode Privileged Exec 4-178