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Enable TI-LFA Fast Reroute for ISIS-SR

Topology

  1. Enable Topology Independent Loop Free Alternate calculation on the Service Provider network for Fast Reroute.

    • Enable for the IPv4 Unicast AF only.
    • Enable Link Protection mode for TI-LFA
    • TI-LFA should be enabled for IS-IS Level 2.
  2. Ensure the proper delay is respected so micro-loops do not occur.

Success

Lab Complete!