Monitoring the QinQ Operating Status

This section describes how to monitor the QinQ operating status.

In routine maintenance, you can run the commands in any view to view the QinQ operating status.

Run the display qinq statistics [interface {interface-type interface-number | interface-name } [ vlan-group group-id ] ] [ verbose ] command to view QinQ packet statistics.
The statistic enable command must be run in the VLAN group view to enable the function of collecting QinQ packet statistics based on VLAN groups before you run the display qinq statistics command to view the number of QinQ packets sent or received by the sub-interface. These statistics help you deploy QoS policies or locate problems. If the function of collecting QinQ packet statistics is disabled, you cannot view the statistics on the sub-interface.
Run the display vlan-group [ group-id ] interface { interface-name |interface-type interface-number } command to view the number of VLAN groups and the configurations of each VLAN group on the specified interface.