General routing protocol question: fast fail back to preferred link

I currently have an OSPF network with hello-multiplier set to 10 so that the preferred network will failback as soon as possible, however the primary link is an unstable starlink connection.
I’m currently exploring routing ipv6 over this network, however OSPF6 doesn’t support hello multiplier, I’ve also looked into BGP which obviously insn’t appropriate for a connection like this, but it also has a similarly “long” hold-over timer.

Is there a protocol or functionality in vyos I’m not familiar with that can update the routing table with a maximum delay of 1 second, if not even less?

You could add BFD on top of it. You can have faster failover then.

https://docs.vyos.io/en/latest/configuration/protocols/bfd.html?highlight=BFD

1 Like

Wow, perfect solution and something new to learn. Thanks

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