I have a few comments, but i am not a routing expert, so I'm maybe
misisng context on the intended use, and why this is a good thing to
allow....
I did not find a description of why this was needed.
Whereas I understand BFD is a protocol setup between two endpoints, this
draft appears to describe a version without the setup, which makes it a
UDP-based request/response protocol in itself. That brings questions
about how it addresses RFC 8085 (also known as BCP 145), with respect to
the UDP Usage? This does not appear to be explained.
Can this be misused as a DoS vector?
GTSM, aka RFC 5082, isn't mentioned or used, but it seems to be
relevent? If not, then the mechanism used to protect from forwarding
needs more explanation.
Best wishes,
Gorry
P.S. I didn't understand this: "Unaffiliated BFD Echo requires the
remote device to loop Unaffiliated
BFD Echo packets.", so the packetw ould fail an RPF check to the source -
why is this good?
