On 29 November 2016 at 20:23, Hugo Slabbert <hugo@slabnet.com> wrote: Hey,
- eBGP with peering to interface addresses (not loopback) - no multi-hop - direct back-to-back connections (no intermediate devices except patch panels)
Possible failure scenarios where I could see this helping would be fat fingering (filters implemented on one or the other side drops traffic from the peer) or e.g. something catastrophic that causes the control plane to go away without any last gasp to the peer.
Or is adding BFD into the mix in this type of setup getting into increasing effort/complexity (an additional protocol) for dimishing returns?
If you have HW liveliness detection and fast-failover, I think BFD probably will just reduce availability due its failures being more probable than the edge cases in your setup. I personally would not run BFD here. -- ++ytti