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Routing Protocols

  • Support for configuring multiple independent IGP instances of IS-IS (ACX Series, MX Series, and PTX Series)—Starting in Junos OS Release 21.1R1, you can configure and run multiple independent IGP instances of IS-IS simultaneously on a router.

    Note:

    Junos OS does not support configuring the same logical interface in multiple IGP instances of IS-IS.

    [See How to Configure Multiple Independent IGP Instances of IS-IS.]