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

Christer Holmberg <christer.holmberg@ericsson.com> Wed, 13 November 2013 18:42 UTC

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From: Christer Holmberg <christer.holmberg@ericsson.com>
To: Paul Kyzivat <pkyzivat@alum.mit.edu>, "mmusic@ietf.org" <mmusic@ietf.org>
Thread-Topic: [MMUSIC] BUNDLE DECISION Q6: Do we always mandate 2 Offer/Answers during session establishment?
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Date: Wed, 13 Nov 2013 18:42:35 +0000
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Subject: Re: [MMUSIC] BUNDLE DECISION Q6: Do we always mandate 2 Offer/Answers during session establishment?
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Hi Paul,

> This works for me except for one thing: the word "session", which I fear is sufficiently ambiguous to present trouble.
>
> I suggest using "multi-media session". (We can't use "SIP session" or "SIP dialog" because this might be used without SIP.)

I agree regarding not being able to use SIP terminology.

I guess "multi-media session" is one option. What about "SDP session"?

Regards,

Christer


On 11/12/13 3:39 PM, Christer Holmberg wrote:
> Hi,
>
> In Vancouver we decided that an Offerer MUST NOT assign a shared address (with a non-zero port) to multiple m- lines until the Answerer, within the session, has indicated support of BUNDLE.
>
> I suggest the following piece of text to implement  the decision in the BUNDLE spec:
>
> 	"The Offerer MUST NOT assign a shared address with a non-zero port
>     	value to multiple "m=" lines until it has, within the given session,
>     	received an SDP Answer indicating that the Answerer supports the
>     	BUNDLE mechanism."
>
> Note that there will be specific text regarding the usage of port zero for 'bundle-only' m- lines.
>
> Regards,
>
> Christer
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