On Tue, Apr 29, 2014 at 02:00:05AM -0400, Black, David wrote: > With respect to the MIB, this concern is a nit, so I'm ok with going ahead without > making this change ... > > ... However ... > > Your WG chairs and AD should be concerned that this significant flaw in > BFD version 0 (justifying a "SHOULD NOT use" recommendation) is undocumented. And also un-RFCed. It was a "work in progress" that never fully saw the light of full deployment. Vendors very quickly moved to version 1 which fixed a critical issue in the state machine. If any version 0 survives, it's historical and likely to be a source of operational agony rather than a useful feature. -- Jeff