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?
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