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priority (Schedulers)


Hierarchy Level


Specify the packet-scheduling priority value.


priority-level can be one of the following:

  • low—Scheduler has low priority.

  • medium-low—Scheduler has medium-low priority.

  • medium-high—Scheduler has medium-high priority.

  • high—Scheduler has high priority. Assigning high priority to a queue prevents the queue from being underserved.

  • strict-high—Scheduler has strictly high priority. Configure a high priority queue with unlimited transmission bandwidth available to it. As long as it has traffic to send, the strict-high priority queue receives precedence over low, medium-low, and medium-high priority queues, but not high priority queues. You can configure strict-high priority on only one queue per interface.


The strict-high priority level is the only priority level supported on ACX Series Routers. However, multiple strict-high priority queues can be configured per interface on ACX Series Routers.

Required Privilege Level

interface—To view this statement in the configuration.

interface-control—To add this statement to the configuration.

Release Information

Statement introduced before Junos OS Release 7.4.