On 2018-10-16, open...@kene.nu <open...@kene.nu> wrote: > Only relying on OSPF hellos effectively makes it mimic BGP with its > keepalives. I will ponder the value of transporting the underlay in > OSPF, effectively transporting loopback peering addresses for BGP in > OSPF. I am not sure that it will make my life easier but will consider > it.
I like being able to run BGP sessions between loopback addresses (rather than normal interface addresses which can go down), it makes it fairly easy to handle multiple paths between routers (I'm not sure how you would do that without an IGP unless you rely on lower-layer mechanisms like switch failover and loop-avoidance protocols).
