Juliusz Chroboczek <jch@irif.fr> writes:

Thanks, Ondrej.

...

Well, it is requirement of OSPF spec (RFC 2328). I could assume it could help for smoother key transitions when clocks are not perfectly synchronized.

Ah, I see.

OSPF only allows one key in the trailer, so it needs the ability to send one key but accept many. Babel-MAC allows multiple keys in the trailer, and that ability is therefore not required.

Or am I missing something?

No, I think you're right.

I have no objection to keeping the ability, since it's pretty trivial to implement. No objection to making it optional, since it's not particularly useful in Babel-MAC. No objection to removing it altogether, since it's good to avoid unnecessary features.

Well, the Bird implementation (which I really should get around to finishing) is going to re-use the existing config syntax, so that is going to implement it in any case. I don't have any strong opinions as to what the spec should say, as long as it doesn't forbid such an option :) -Toke