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Catalyst 6500 Series Switch Command Reference—Release8.1
78-15474-01
Chapter2 Catalyst 6500 Series Switch and ROM Monitor Commands set port dot1qtunnel
set port dot1qtunnel
To configure the dot1q tunnel mode for the port, use the set port dot1qtunnel command.
set port dot1qtunnel mod/port {access | disable}
Syntax Description
Defaults The default is dot1qtunnel is disabled.
Command Types Switch command.
Command Modes Privileged.
Usage Guidelines You cannot enable the dot1q tunneling feature on a port until dot1q-tagged-only mode is enable d.
You cannot disable dot1q-tagged-only mode on the switch until dot1q tunneling is disab led on a ll t he
ports on the switch.
You cannot set the dot1q tunnel mode to access if port security is enabled.
You cannot set the dot1q tunnel mode to access on a port with an auxiliary VLAN configured.
An interconnected network can have redundant paths to the same edge switch of ISP, but it cannot have
redundant paths to two different edge switches of ISP.
Note PBF does not work with 802.1Q tunnel traffic. PBF is supported on Layer 3 IP unicast traffic, but it is
not applicable to Layer 2 traffic. At the intermediate (PBF) switch, all 802.1Q tunnel traffic appears as
Layer 2 traffic.
If you enable dot1q-tagged globally, the dot1q-tagged per-port setting controls whether or not the frames
are tagged. If you disable dot-1q-tagged globally, the default group is never tagge d an d the per-port
setting has no effect.
Examples This example shows how to set dot1q tunneling on the port to access:
Console> (enable) set port dot1qtunnel 4/1 access
Dot1q tunnel feature set to access mode on port 4/1.
Port 4/2 trunk mode set to off.
Console> (enable)
mod/port Number of the module and the port on the module.
access Turns off the port trunking mode.
disable Disables dot1q tunneling.