Hi all,
I am having some issues with my default route propagation between my towers during a failover scenario. I attached a high level diagram that goes over the setup which can be summarized below when all the circuits are up and running.
Tower1 receives default from Core and advertises to Tower2
Tower2 receives default from Tower1 & Tower3 ; configured to advertise to both neighbors if installed
Tower3 receives default from Tower2 & Tower4 ; configured to advertise to both neighbors if installed
Tower4 receives default from Core and advertises to Tower3
Tower2 and 3 have two defaults learned and failover is working as expected. The issue is with Tower1 and Tower4. If Tower1 loses its connection to the core, I am expecting the Mikrotik to learn a default from Tower2's Mikrotik but it's not happening. When Tower1's circuit towards the core is up, Tower2 learns it's primary default from Tower1 and it does not advertise it back to Tower1. That is expected, but shouldn't Tower2 use the default learned from Tower3 and then advertise it towards Tower1 in my scenario?
Thanks,
AT