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Routing Protocols

  • Support for origin validation with BGP sharding (MX Series and PTX Series)—Starting in Junos OS Release 21.2R1, you can use origin validation with BGP sharding. You can configure rib-sharding with routing-options validation.

  • BMP with BGP sharding and update I/O (JRR Series, MX Series, PTX Series, and vMX)—Starting in Junos OS Release 21.2R1, we support BGP Monitoring Protocol (BMP) with BGP sharding and update I/O in the multithreaded mode.

  • Basic MVPN support with BGP sharding (cRPD, JRR200, MX2020, PTX5000, and QFX10002)—Starting in Junos OS 21.2R1, we support the basic multicast virtual private network (MVPN) functionalities with BGP sharding.

    Note:

    Sharding is not supported for the MVPN address family.
  • Support for BGP SR-TE policy advertisement and error handling (MX Series and PTX Series)—Starting in Junos OS Release 21.2R1, if the SDN controller cannot directly install SR-TE routes on non-Juniper Networks devices, the controller installs the BGP SR-TE policy on the route reflector, which forwards the SR-TE routes to non-Juniper devices.

    To advertise SR-TE policy to non-Juniper devices, define a BGP policy that includes the family inet-srte statement at the [edit policy-options policy-statement term from protocol bgp] hierarchy level.

    To push an unlabeled IP packet before other labels, include the inet-color-append-explicit-null statement at the [edit protocols source-packet-routing] hierarchy level.

  • Support for BGP classful transport (CT) with underlying colored SRTE tunnels (MX Series and PTX Series with FPC-PTX-P1-A)– Starting in Junos OS Release 21.2R1, BGP-CT can resolve service routes using the transport RIBs and compute the next-hop. Services currently supported over BGP-CT can also use the underlying SRTE colored tunnels for route resolution.

    To enable BGP CT service route resolution over underlying SRTE colored tunnels, include the use-transport-class statement at the [edit protocols source-packet-routing] hierarchy level.

    [See use-transport-class.]

  • Flexible algorithm inter-level leaking support for SRv6 and SR-MPLS in ISIS (ACX Series, MX Series and PTX Series)—Starting in Junos OS Release 21.2R1, we support flexible algorithm inter-level leaking for SRv6 and SR-MPLS in IS-IS. Also, we partially support TE-App RFC 8919 in its basic form and extends 6PE support for flexible algorithm.