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

"Alvaro Retana (aretana)" <aretana@cisco.com> Wed, 29 June 2016 17:42 UTC

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From: "Alvaro Retana (aretana)" <aretana@cisco.com>
To: Stephen Kent <kent@bbn.com>, "sidr@ietf.org" <sidr@ietf.org>
Thread-Topic: [sidr] AD Review of draft-ietf-sidr-rpki-rtr-rfc6810-bis-07
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Date: Wed, 29 Jun 2016 17:42:14 +0000
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Subject: Re: [sidr] AD Review of draft-ietf-sidr-rpki-rtr-rfc6810-bis-07
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On 5/26/16, 11:15 AM, "sidr on behalf of Stephen Kent"
<sidr-bounces@ietf.org on behalf of kent@bbn.com> wrote:

[Sorry for the delay...]

>
>> ...
>>> 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.

Yes, I think we are.

Alvaro.

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