VLAN Configuration 3

Identifier (TPID) value of the tunnel port if the attached client is using a nonstandard 2-byte ethertype to identify 802.1Q tagged frames.

Command Usage

Use the TPID field 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, if 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.

Command Attributes

802.1Q Tunnel – Sets the switch to QinQ mode, sets the 802.1Q Ethernet Type (TPID), and allows the QinQ tunnel port to be configured. The default is for the switch to function in normal mode.

802.1Q Ethernet Type – The Tag Protocol Identifier (TPID) specifies the ethertype of incoming packets on a tunnel port. (Range: hexadecimal 0800-FFFF; Default: 8100)

Web – Click VLAN, 802.1Q VLAN, 802.1Q Tunnel Status. Check the Enabled box, set the TPID of the ports if the client is using a non-standard ethertype to identify 802.1Q tagged frames, and click Apply.

Figure 3-101 802.1Q Tunnel Status and Ethernet Type

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Accton Technology ES3528M-SFP manual 101 802.1Q Tunnel Status and Ethernet Type