Microsens MS453490M Management Guide - Manual (Page 799)

C HAPTER 34 | VLAN Commands
Configuring IEEE 802.1Q Tunneling
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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.
S YNTAX
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)
D EFAULT S ETTING
0x8100
C OMMAND M ODE
Interface Configuration (Ethernet, Port Channel)
C OMMAND U SAGE
◆ 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.
E XAMPLE
Console(config)#interface ethernet 1/1
Console(config-if)#switchport dot1q-tunnel tpid 9100
Console(config-if)#
R ELATED C OMMANDS
show interfaces switchport (711)
show dot1q-tunnel This command displays information about QinQ tunnel ports.
C OMMAND M ODE
Privileged Exec
E XAMPLE
Console(config)#dot1q-tunnel system-tunnel-control
Console(config)#interface ethernet 1/1
Console(config-if)#switchport dot1q-tunnel mode access