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Source Packet Routing in Networking (SPRING) or Segment Routing

  • Multi-instance OSPF with SR (ACX7024, ACX7024X, ACX7100-32C, ACX7100-48L, ACX7332, ACX7348, ACX7509, PTX10001-36MR, PTX10002-36QDD, PTX10003, PTX10004, PTX10008, and PTX10016)—Configure and run multiple independent interior gateway protocol (IGP) instances of OSPFv2 with segment routing (SR) on a router. Use this feature to create two or more OSPF instances and apply SR-MPLS on each instance. Multiple instances of OSPF can advertise different prefix-segment IDs (SIDs), and other instances can use these SIDs for routing decisions.

    Multi-instance OSPF combined with SR enhances network flexibility, scalability, and control over traffic engineering, especially in large and complex networks.

    Note:

    Junos OS does not support the configuration of the same logical interface in multiple IGP instances of OSPFv2.

    [See Multiple Independent IGP Instances of OSPFv2 Overview and Example: Configure Multiple Independent Instances of OSPFv2 with Segment Routing.]