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Source Packet Routing in Networking (SPRING) or Segment Routing

  • Support for unnumbered interfaces for IS-IS with SPRING TI-LFA (PTX10001-36MR, PTX10003, PTX10004, PTX10008, and PTX10016)— Starting in Junos Evolved OS Release 23.1R1, we support IS-IS over unnumbered interfaces on point-to-point links with SPRING topology-independent loop-free alternate (TI-LFA). You can configure unnumbered interfaces to share the same subnet across multiple interfaces to conserve IPv4 addresses. Note that we do not currently support unnumbered interfaces for IPv6.

    [See Configuring Topology-Independent Loop-Free Alternate with Segment Routing for IS-IS.]