Greetings, The IETF Bidirectional Forwarding Detection (BFD) Working Group has begun work on "Unaffiliated BFD Echo Function". This work is happening in the Internet-Draft draft-ietf-bfd-unaffiliated-echo.[1]
The BFD protocol (IETF RFC 5880, etc.) is used as a service in routers and other IP gateway devices for testing bi-directional connectivity. Such devices benefit from having BFD as a common interface for monitoring the status of such connectivity. The purpose of this work is to permit an implementation of BFD that supports Echo functionality to be used with a Internet Protocol host that does not support the BFD protocol, but is capable of providing the packet loopback behavior required by the BFD Echo mechanism. The BFD Working Group is aware of an overlapping use case addressed by BBF TR-146. Those interested in providing detailed feedback and technical comment on the draft are encouraged to participate in the development of the draft in the IETF via the IETF process. Regards, -- Jeff Haas, Reshad Rahman, IETF BFD Chairs [1] https://datatracker.ietf.org/doc/draft-ietf-bfd-unaffiliated-echo/
