Edge Products ES3528-WDM - Manual (Page 478)

VLAN Commands
30-22
30
Related Commands
switchport mode dot1q-tunnel (page 30-21)
switchport dot1q-ethertype
This command sets the Tag Protocol Identifier (TPID) value of a tunnel port. Use the
no form. Use the no form to restore the default setting.
Syntax
switchport dot1q-ethertype tpid
no switchport dot1q-ethertype
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: 0-ffff
hexadecimal)
Default Setting
No dot1q-ethertype is set.
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
• Use the switchport dot1q-ethertype 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 members of a VLAN should be set to the same ethertype.
Example
Related Commands
show interfaces switchport (24-11)
Console(config)#interface ethernet 1/1
Console(config-if)#switchport dot1q-ethertype 9100
Console(config-if)#