When I enable BFD on a BGP peer (both sides), the BFD neighbor status is OK and the link works fine.
When I drop UDP to port 3784 in the INPUT firewall filter, as expected BFD declares the link down and
immediately the BGP peering is closed and the traffic re-routed. Fine.
However, after a minute or so (I think the BGP Peer re-connection interval) the BGP peering comes back
up even with the BFD state being DOWN on one side and INIT at the other side. Traffic flows over the
Is that correct and expected behaviour or is it a bug?
I would think that as long as BFD considers the link DOWN at least at one side, the link would not be
used for routing.