Command Line Interface

4-230

4
reconfigured to overcome
a break in the tree. It is therefore advisable to disable
spanning tree on these ports.

dot1q-tunnel system-tunnel-control

This command sets the switch to operate in QinQ mode. Use the no form to disable
QinQ operating mode.
Syntax
[no] dot1q-tunnel system-tunnel-control
Default Setting
Disabled
Command Mode
Global Configuration
Command Usage
QinQ tunnel mode must be enabled on the switch for QinQ interface settings
to be functional.
Example
Related Commands
show dot1q-tunnel (4-232)
show interfaces switchport (4-165)

switchport dot1q-tunnel mode

This command configures an interface as a QinQ tunnel port. Use the no form to
disable QinQ on the interface.
Syntax
switchport dot1q-tunnel mode <access | uplink>
no switchport dot1q-tunnel mode
access – Sets the port as an 802.1Q tunnel access port.
uplink – Sets the port as an 802.1Q tunnel uplink port.
Default Setting
Disabled
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
QinQ tunneling must be enabled on the switch using the dot1q-tunnel
system-tunnel-control command before the switchport dot1q-tunnel
mode interface command can take effect.
Console(config)#dot1q-tunnel system-tunnel-control
Console(config)#