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slice (CoS Interfaces)


Hierarchy Level


Assign output traffic control profiles to slices to provide hierarchical CoS for slices.

At the core of the slice per-hop behavior (PHB) in the data plane is the hierarchical class of service (CoS) queuing. In the network slicing architecture, each slice has a designated queue set consisting of queues corresponding to traditional behavioral aggregate (BA) classifiers. Similar to hierarchical queuing for logical interfaces, you can define hierarchical CoS (HCoS) for transport slices. You can configure up to three levels of HCoS for transport slices:

  • Physical or aggregated Ethernet interface (Level 1)

  • Individual slices (Level 2)

  • Eight queues per slice (Level 3)

  • You cannot configure hierarchical CoS for both slices and logical interfaces on the same physical or aggregated Ethernet interface.

  • You cannot configure hierarchical CoS for slices on a device if the device also has policy map configured.

  • You must define the slice name at [edit services network-slicing].

  • You must enable enhanced-ip at [edit chassis network-services].

  • You must enable hierarchical-scheduler at [edit interfaces interface-name].



Name of the network slice


Name of the traffic control profile

Required Privilege Level

interface—To view this statement in the configuration.

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

Release Information

Statement introduced in Junos OS Release 22.3R1 for MX Series routers.