As for my tests, Mikrotik doesn’t seem to support point-to-multipoint BFD. I’ve got a couple of RB750 and CCRs running RouterOS v7.17 and v7.19, connected in an OSPF broadcast network. There are two gateways in this network, and the goal was to set a rapid convergence when one of them failed. Tried to setup with BFD but the instability was enormous.
It simply closes a “full-mesh" BFD session (not only with the DR/BDR), and from the packet sniffs I made, it seems the Mikrotik changes its own My Discriminator field randomly (as for RFC 5880, it is OKAY to change the discriminator, as long as it doesn’t affect the session state), but the other end of the session doesn’t seem to recognize the Discriminator change, and the session goes down.
Is there something that i’m missing in this scenario? Or it is just a clear signal that RouterOS doesn’t support this at all?