Configuring IEEE 802.1Q and Layer 2 Protocol Tunneling

Monitoring Tunneling Status

Switch(config-if)#switchport mode trunk

Switch(config-if)# udld enable

Switch(config-if)#channel-group 1 mode desirable

Switch(config-if)# exit

Switch(config)# interface gigabitethernet1/0/4

Switch(config-if)#switchport trunk encapsulation dot1q

Switch(config-if)#switchport mode trunk

Switch(config-if)# udld enable

Switch(config-if)#channel-group 1 mode desirable

Switch(config-if)# exit

Switch(config)# interface port-channel 1

Switch(config-if)# shutdown

Switch(config-if)# no shutdown

Switch(config-if)# exit

Related Topics

Configuring the SP Edge Switch, on page 138

Configuring the Customer Switch, on page 141

Monitoring Tunneling Status

The following table describes the commands used to monitor tunneling status.

Table 15: Commands for Monitoring Tunneling

 

Command

Purpose

clear l2protocol-tunnel counters

Clears the protocol counters on Layer 2 protocol

 

tunneling ports.

show dot1q-tunnel

Displays IEEE 802.1Q tunnel ports on the switch.

show dot1q-tunnel interface interface-id

Verifies if a specific interface is a tunnel port.

show l2protocol-tunnel

Displays information about Layer 2 protocol tunneling

 

ports.

show errdisable recovery

Verifies if the recovery timer from a Layer 2

 

protocol-tunnel error disable state is enabled.

show l2protocol-tunnel interface interface-id

Displays information about a specific Layer 2 protocol

 

tunneling port.

show l2protocol-tunnel summary

Displays only Layer 2 protocol summary information.

show vlan dot1q tag native

Displays the status of native VLAN tagging on the

 

switch.

 

Catalyst 2960-XR Switch VLAN Configuration Guide, Cisco IOS Release 15.0(2)EX1

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Cisco Systems WSC2960XR48FPSI manual Monitoring Tunneling Status, Ports, Tunneling port, Show l2protocol-tunnel summary
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WSC2960XR48FPSI specifications

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