Collecting aggregate queue statistics for underlying logical interfaces

By default to preserve memory resources, aggregate queue statistics are not collected for underlying logical interfaces (Level 2 interfaces). Queue statistics are only collected for the upper-level logical interfaces (Level 3 and above) and the physical interface (Level 1). By default the command show interfaces queue interface-name shows all zeroes for underlying logical interfaces. You can enable the collection of aggregate queue statistics for all underlying logical interfaces on a particular physical or aggregate (for example, ae0) interface by enabling logical-interface-aggregate-statistics at the [edit class-of-service interfaces interface-name] hierarchy level. You can show the aggregate queue statistics by running the show interfaces queue interface-name command.