Hi All, I’m trying to implement a topology where multiple nodes have connections to one network. Let’s say there are three devices running babel: A 10.0.0.1/24 B 10.0.0.2 C 10.0.0.3 and both B and C can route traffic to 10.1.0.0/16, and BIRD learns this route through the `kernel` protocol.
Now that both B and C announces 10.1.0.0/16 via babel, and it seems that BIRD does some kind of “first come first serve”, and A only sees the route via one of B or C. Let’s say B comes online first and announces the route. Now C comes online. It doesn’t announce 10.1.0.0/16 to babel at all. The same behaviour is observed if I use ospf instead of babel. My hypothesis is that when it synchronizes kernel with master4, it sees that 10.1.0.0/16 is already in master4 (announced by B), and so it doesn’t import this route from kernel to master4 at all(?) What I am trying to do is to have both B and C announce this route, and let babel choose whether traffic from A for 10.1.0.0/16 should go to B or C based on its metric. Is this possible? or is it a really bad idea? Thanks. Best, Maiyun Zhang (he/him)
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