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Re: [sipcore] Happy Eyeballs for SIP / Summa Beatitudinem

"Asveren, Tolga" <tasveren@sonusnet.com> Mon, 19 December 2016 06:51 UTC

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From: "Asveren, Tolga" <tasveren@sonusnet.com>
To: "Olle E. Johansson" <oej@edvina.net>
Thread-Topic: [sipcore] Happy Eyeballs for SIP / Summa Beatitudinem
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Date: Mon, 19 Dec 2016 06:45:23 +0000
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Cc: "Dale R. Worley" <worley@ariadne.com>, "sipcore@ietf.org" <sipcore@ietf.org>
Subject: Re: [sipcore] Happy Eyeballs for SIP / Summa Beatitudinem
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> -----Original Message-----
> From: Olle E. Johansson [mailto:oej@edvina.net]
> Sent: Sunday, December 18, 2016 11:32 AM
> To: Asveren, Tolga <tasveren@sonusnet.com>
> Cc: Olle E Johansson <oej@edvina.net>; Dale R. Worley
> <worley@ariadne.com>; sipcore@ietf.org
> Subject: Re: [sipcore] Happy Eyeballs for SIP / Summa Beatitudinem
> 
> 
> > On 18 Dec 2016, at 14:49, Asveren, Tolga <tasveren@sonusnet.com>
> wrote:
> >
> > B) Use of Multiple Interfaces
> > v- I think the ideal place to cover this would be RFC6555-bis (also by
> considering other restrictions as mentioned in ii- above). I wouldn't think that
> there would be a need for defining anything new in draft-worley-sip-he-
> connection-00 (?).
> 
> A question here is how this works with SIP outbound - do we need two
> outbound connections per interface? How do we handle reg-id and failover
> in that case?
> 
> It’s like inventing ICE for SIP… :-)
[TOLGA] Yes, kind of. OTOH -like I stated in another message-, I am not keen about solutions/enhancements requiring hosting of multiple registration instances. In general, I think each address family/interface tuple should be handled as a possible combination. There *could* be cases where there is a need to extend the tuple with the destination related information as well (but I am not sure whether that would happen often enough in practice).

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