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Configuration Guide - IP Unicast Routing

S9300, S9300E, and S9300X V200R011C10

This document describes IP Unicast Routing configurations supported by the switch, including the principle and configuration procedures of IP Routing Overview, Static Route, RIP, RIPng, OSPF, OSPFv3, IS-IS(IPv4), IS-IS(IPv6), BGP, Routing Policy ,and PBR, and provides configuration examples.
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Enabling IPv4 IS-IS Auto FRR

Enabling IPv4 IS-IS Auto FRR

Context

Perform the following steps on the switch that needs the protection for the forwarded traffic:

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run isis [ process-id ]

    The IS-IS process is enabled and the IS-IS view is displayed.

  3. Run frr

    The IS-IS Auto FRR view is displayed.

  4. (Optional) Run frr-policy route route-policy route-policy-name

    Backup routes are filtered using a filtering policy. Only backup routes that have passed the filtering policy are added to the routing table.

  5. Run loop-free-alternate [ level-1 | level-2 | level-1-2 ]

    IS-IS Auto FRR is enabled and the loop-free backup route is created.

    If the IS-IS level is not specified, IS-IS Auto FRR is enabled on Level-1 and Level-2 to create the backup route.

    NOTE:

    IS-IS can create the loop-free backup route only if the interface cost is in compliance with the traffic protection inequality of IS-IS Auto FRR.

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Updated: 2019-10-22

Document ID: EDOC1000178418

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