First, my thanks to the authors for the very readable drafts.
The SIDR charter includes:
* Is an Autonomous System (AS) authorized to originate an IP prefix
Joe Gersch and Dan Massey write:
You cannot use our approach to see all the prefixes that are
authorized to originate from a given AS. Instead of looking at
prefix ranges or an AS, this approach starts from a specific prefix
and asks to identify its origin AS. This is similar, but not
identical to what SIDR seeks to do.
Actually, I think what you're doing is exactly what that line the SIDR
charter means, though I see how it could be confusing. The RPKI does
not give a list of all prefixes that may be originated by an AS; it
answers the "which ASes" question for a given prefix, which is what
your proposal also seems to be aiming to do.
I think this clearly fits the SIDR charter. (Indeed, your scheme
doesn't do anything for that second bullet in the SIDR charter re:
path protection, but that's okay.)
I think there are differences in the semantics of this v. the RPKI,
and I would love to see an analysis of the differences couched in the
language of sets.
And as for prior work, this is a novel enough variation to deserve
some consideration. In addition to the citations you already have,
Bill Manning also did some work in this space; look for an INET'98
paper.
-- Sam
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