Greg - I agree with your characterization.
I would also suggest that RFC 5883 Section 4.1 makes the same statement for multi-hop BFD - at least from the standpoint of L3 clients. Les From: Rtg-bfd [mailto:[email protected]] On Behalf Of Gregory Mirsky Sent: Monday, November 02, 2015 6:27 PM To: [email protected] Subject: Multiple BFD sessions between the same pair of end-points Dear All, I think that this paragraph from Section 2 of RFC 5881 prohibits multiple single-hop BFD sessions between the same pair of end points: Each BFD session between a pair of systems MUST traverse a separate network-layer path in both directions. This is necessary for demultiplexing to work properly, and also because (by definition) multiple sessions would otherwise be protecting the same path. Regards, Greg
