Specifications

8-16
Cisco MWR 2941 Mobile Wireless Edge Router Release 3.5 Software Configuration Guide, Cisco IOS Release 15.1(3)MR
OL-26895-01
Chapter 8 Configuring IEEE 802.1Q Tunneling and Layer 2 Protocol Tunneling
Monitoring and Maintaining Tunneling and Mapping Status
Use the no l2protocol-tunnel [cdp | stp | vtp] interface configuration command to disable protocol
tunneling for one of the Layer 2 protocols or for all three. Use the no l2protocol-tunnel
shutdown-threshold [cdp | stp | vtp] and the no l2protocol-tunnel drop-threshold [cdp | stp | vtp]
commands to return the shutdown and drop thresholds to the default settings.
This example shows how to configure Layer 2 protocol tunneling for CDP, STP, and VTP and to verify
the configuration.
Router(config)# interface gigatethernet0/1
Router(config-if)# l2protocol-tunnel cdp
Router(config-if)# l2protocol-tunnel stp
Router(config-if)# l2protocol-tunnel vtp
Router(config-if)# l2protocol-tunnel shutdown-threshold 1500
Router(config-if)# l2protocol-tunnel drop-threshold 1000
Router(config-if)# exit
Router(config)# l2protocol-tunnel cos 7
Router(config)# end
Router# show l2protocol
COS for Encapsulated Packets: 7
Port Protocol Shutdown Drop Encapsulation Decapsulation Drop
Threshold Threshold Counter Counter Counter
------- -------- --------- --------- ------------- ------------- -------------
Gi 0/1 cdp 1500 1000 2288 2282 0
stp 1500 1000 116 13 0
vtp 1500 1000 3 67 0
Monitoring and Maintaining Tunneling and Mapping Status
Table 8-2 shows the privileged EXEC commands for monitoring and maintaining 802.1Q and Layer 2
protocol tunneling and VLAN mapping.
For detailed information about these displays, see the Cisco MWR 2941 Mobile Wireless Edge Router
IOS Command Reference, Release 15.0(1)MR.
Table 8-2 Commands for Monitoring and Maintaining Tunneling
Command Purpose
clear l2protocol-tunnel counters Clear the protocol counters on Layer 2 protocol tunneling ports.
show dot1q-tunnel Display 802.1Q tunnel ports on the router.
show dot1q-tunnel interface interface-id Verify if a specific interface is a tunnel port.
show running-config interface type number Verify the configuration for a specified interface. You can use this
command to display the mapping configuration for a VLAN interface.
show l2protocol-tunnel Display information about Layer 2 protocol tunneling ports.
show errdisable recovery Verify if the recovery timer from a Layer 2 protocol-tunnel error disable
state is enabled.
show l2protocol-tunnel interface interface-id Display information about a specific Layer 2 protocol tunneling port.
show l2protocol-tunnel summary Display only Layer 2 protocol summary information.
show vlan dot1q tag native Display the status of native VLAN tagging on the router.