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Class of Service

  • Queue-depth monitoring support for virtual output queues (PTX10001-36MR, PTX10004, PTX10008, and PTX10016)—Virtual output queue (VOQ) queue-depth monitoring, or latency monitoring, measures peak queue occupancy of a VOQ. Starting with Junos OS Evolved Release 22.2R1, PTX Series routers running Junos OS Evolved support VOQ queue-depth monitoring to report peak queue length for a given physical interface for each individual Packet Forwarding Engine.

    [See VOQ Queue-depth Monitoring.]

  • CoS support for EVPN-VXLAN (PTX10001-36MR, PTX10004, PTX10008, and PTX10016)—Starting in Junos Evolved OS Release 22.2R1, you can configure CoS features to prioritize traffic on an Ethernet VPN-Virtual Extensible LAN (EVPN-VXLAN) fabric.

    [See Implementing CoS on VXLAN Interfaces (Junos OS Evolved).]

  • Support for BGP flowspec DSCP action (PTX Series)—Starting in Junos OS Evolved Release 22.2R1, you can configure mapping rules to translate a Differentiated Services code point (DSCP) value in the BGP flowspec (set DSCP action) into forwarding classes. With the mapping option enabled, you can change forwarding behavior, CoS treatment, and control EXP or DSCP rewrite of the packets. You can control rewrite of the packets using rewrite rules on a platform that does not support direct DSCP rewrite capability in a filter.