Queuing features on built-in ports to provide customized traffic shaping services
Support for hierarchical class-of-service (HCoS) features such as per-unit scheduling and hierarchical scheduling is extended to the built-in (fixed) ports. You can enable scheduling and shaping on a logical interface and provide customized traffic shaping services for the logical interface, and this configuration is independent of any configuration on other logical interfaces on a given physical interface. You can configure per-unit scheduling by including the per-unit-scheduler statement at the [edit interfaces interface-name] hierarchy level. To configure hierarchical scheduling, include the hierarchical-scheduler statement at the [edit interfaces interface-name] hierarchy level.