Re: [MMUSIC] BUNDLE DISCUSION Q6: Do we always mandate 2 Offer/Answers during session establishment?

Harald Alvestrand <harald@alvestrand.no> Mon, 09 September 2013 08:56 UTC

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Date: Mon, 09 Sep 2013 10:55:58 +0200
From: Harald Alvestrand <harald@alvestrand.no>
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Subject: Re: [MMUSIC] BUNDLE DISCUSION Q6: Do we always mandate 2 Offer/Answers during session establishment?
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On 09/07/2013 02:14 AM, Justin Uberti wrote:
> That's what I thought we were talking about. This has the benefit that 
> you don't need to gather STUN/TURN for the other addresses that you 
> know you are going to discard.
>
> Regarding intermediaries, I expect that even for less-well-provisioned 
> WebRTC app providers, there typically won't be any intermediaries, at 
> least none who have access to the signaling traffic.

For instance, I expect a number of applications to work on the following 
pattern:

- Set up a connection with a data channel only via some relay
- Do all subsequent offer/answer over the data channel

Given the wonderful world of DTLS, we *know* that there are no 
intermediaries.

>
>
> On Fri, Sep 6, 2013 at 1:09 PM, Martin Thomson 
> <martin.thomson@gmail.com <mailto:martin.thomson@gmail.com>> wrote:
>
>     On 6 September 2013 12:46, Christer Holmberg
>     <christer.holmberg@ericsson.com
>     <mailto:christer.holmberg@ericsson.com>> wrote:
>     > If you know that the other end supports BUNDLE, then why can't
>     you assign the shared address to each "m=" line already in the
>     FIRST Offer? Why assign unique addresses?
>
>     Exactly.  That's what I'd do.
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