On Sun, Feb 18, 2018 at 03:28:13AM +0000, Reshad Rahman (rrahman) wrote: > Hi Acee, > > What I meant is that BFD always augments the control palne protocols in ietf-routing model. And the BFD augmentation can be used as-is or mounted in LNE or in NI. Basically: Whereever ietf-routing is, BFD may also be. BFD may not be everywhere that ietf-routing is (e.g. it may or may not be in an instance, depending on device capabilities). -- Jeff