Enable VOQ utilization monitoring with JTI

You can enable the enable the export utilization data for CoS virtual output queues (VOQs) on aggregated Ethernet or physical Ethernet WAN interfaces. Using this feature, you can export peak buffer utilization data for a given queue with Junos telemetry interface (JTI). Monitoring this data can assist in preventing micro-bursts and high buffer utilization for a given queue because peak buffer utilization is transient and might not be reported by instantaneous queue depth. 

To enable monitoring, include queue-monitoring enable at one of the following hierarchies: 

•  [edit class-of-service interfaces if-name] 
•  [edit class-of-service traffic-control-profiles tcp-name] 
•  [edit class-of-service schedulers scheduler-name] 

To export data to a collector, include the resource path /junos/system/linecard/qmon-sw in a subscription.