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Source Packet Routing in Networking (SPRING) or Segment Routing

  • BGP classful transport (CT) support for IPv6 and Segment Routing Traffic-Engineered (SR-TE) color-only support (ACX Series, MX Series, and PTX Series)—Starting in Junos OS Release 22.2R1, we support BGP-CT with IPv6 and BGP service-routes with a color-only mapping community. We have also enhanced the transport-class configuration statement to provide strict resolution without falling back on best-effort tunnels.

    [See use-transport-class, BGP Classful Transport (BGP-CT) with Underlying Colored SR-TE Tunnels Overview.]

  • SRv6 locator summarisation, locator anycast, and service mapping (MX Series) (MX 10008)—Starting in Junos OS Release 22.2R1, IS-IS can summarise and advertise locator prefixes. We also support SRv6 anycast locators and service mapping. SRv6 anycast locators identify a set of topologically near nodes to forward packets addressed to an anycast address.