The need for BFD (Bidirectional Forwarding Detection) is configured to speed up the "Detection" of a link down, which is 15 seconds by default without any Routing Protocols Hello / Dead Timers triggering this re-convergence (finding an alternate path), which now adays might as well be 15 hours. Now of course this can be solved … Continue reading BFD – (Bidirectional Forwarding Detecetion) review, what problem it solves, configuration, and verification!
The DEVNET GRIND! 