Lab 4 – Introducing TI-LFA (Topology Independent – Loop-Free Alternate)
Modern networks handle a substantial volume and variety of traffic, including data, voice, video, online gaming, and the IoT (Internet of Things). When a link or a router fails, the network experiences a convergence delay. This delay involves detecting the fault, updating the routers, calculating and installing an alternative path to restore connectivity, and then allowing applications to re-establish connections and resume communication. This brief outage often exceeds tolerable limits, disrupting the user experience.
To mitigate these interruptions, fast reroute mechanisms have been developed.
The widely used fast reroute method in segment routing networks is TI-LFA (Topology Independent Loop-Free Alternate). TI-LFA Fast Reroute protection enhances network resilience by creating backup routes for each entry in the Interior Gateway Protocol (IGP) routing table or the Routing Information Base...
