Re: [sidr] AD Review of draft-ietf-sidr-rpki-rtr-rfc6810-bis-07

Stephen Kent <kent@bbn.com> Thu, 26 May 2016 15:15 UTC

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From: Stephen Kent <kent@bbn.com>
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Subject: Re: [sidr] AD Review of draft-ietf-sidr-rpki-rtr-rfc6810-bis-07
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Alvaro,


> ...
>> It means that most of the code one needs to deal with version one is
>> the same as the code one needs to deal with version zero.  Feel free
>> to suggest better text.
> When I think about protocol compatibility I think about on-the-wire
> behavior and packets, not about the implementation internals.

I'm not sure what the phrase "on-the-wire behavior" means. Certainly
it is not enough to agree on data formats, i.e., the format of data on 
the wire.
There also must be consistent behavior by each end of a 
connection/session/ ...
(in terms of externally-visible processing) of the agreed upon data format.
Otherwise,  the behavior of "compatible" implementations may vary 
significantly,
and  users will not see the versions as "compatible."

I think your latter comments match my sense of "compatibility",
but I just wanted to make sure we are on the same page.

Steve