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Re: [dispatch] New Version Notification for draft-johansson-dispatch-dane-sip-00.txt

Paul Kyzivat <pkyzivat@alum.mit.edu> Wed, 08 January 2014 15:53 UTC

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Date: Wed, 08 Jan 2014 10:52:52 -0500
From: Paul Kyzivat <pkyzivat@alum.mit.edu>
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To: "Olle E. Johansson" <oej@edvina.net>, Iñaki Baz Castillo <ibc@aliax.net>
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Cc: "dispatch@ietf.org list" <dispatch@ietf.org>
Subject: Re: [dispatch] New Version Notification for draft-johansson-dispatch-dane-sip-00.txt
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On 1/8/14 4:16 AM, Olle E. Johansson wrote:
>
> On 08 Jan 2014, at 10:06, Iñaki Baz Castillo <ibc@aliax.net> wrote:
>
>> 2014/1/8 Olle E. Johansson <oej@edvina.net>:
>>>> Honestly I've never understood the real difference between a domain
>>>> and a hostname. Of course, IMHO, the SIP client should provide in the
>>>> SNI the destination domain of the server it is attempting to connect
>>>> to.
>>> Right, but...
>>>
>>> Does anyone find this in any published document?
>>
>> Not AFAIK :)
>> But in this case SIP should follow well proven mechanisms and rules of HTTP(s).
>>
> If so, that is what we need to write.

+1

This seems to be yet another place where as time goes on we find aspects 
of SIP that are underspecified. The problem with underspecification is 
that implementers make assumptions, often without even realizing they 
are doing so. And if implementers don't all make the *same* assumptions 
then we get interop problems.

I'm strongly in favor of publishing clarifications for such things.

	Thanks,
	Paul

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