Bidirectional Forwarding Detection (BFD) Protocol Cheat Sheet
Definition This is a protocol initially described in RFC5880 and IPv4/IPv6 specifics in RFC5881. I would say this is an aggressive 'hello-like' protocol with shorter timers but very lightweight on t...
Published Aug 22, 2019
Version 1.0
Hi Piotr
When you tie static routes with BFD like this:
ip static <source> <destination> fall-over bfd
You're literally making static route dependant on BFD status which means if BFD session goes down or even if you force it administratively down, your static route is removed from routing table so you can't really say it does nothing, can you?
BTW, this is how it's used in real life (for redundancy).
Maybe I didn't quite understand your question but multiple next hop for single Floating IP is usually achieved by using VRRP protocol. BFD creates a session for end-points already 'reachable'.