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Re: [MMUSIC] BUNDLE/SDP : ISSUE#3: Should BUNDLE deal with DECLARATIVE SDP ?

Christer Holmberg <christer.holmberg@ericsson.com> Thu, 31 October 2013 20:12 UTC

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From: Christer Holmberg <christer.holmberg@ericsson.com>
To: Suhas Nandakumar <suhasietf@gmail.com>, Harald Alvestrand <hta@google.com>
Thread-Topic: BUNDLE/SDP : ISSUE#3: Should BUNDLE deal with DECLARATIVE SDP ?
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Date: Thu, 31 Oct 2013 20:12:08 +0000
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Cc: Cullen Jennings <fluffy@cisco.com>, mmusic WG <mmusic@ietf.org>
Subject: Re: [MMUSIC] BUNDLE/SDP : ISSUE#3: Should BUNDLE deal with DECLARATIVE SDP ?
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Hi,



I think the BUNDLE spec does say that it is a way to use O/A in order to negotiate multiplexing.



But, if people don't think it's not clear enough, we can for sure add more text :)



Regards,



Christer



________________________________
From: Suhas Nandakumar [suhasietf@gmail.com]
Sent: Thursday, 31 October 2013 9:56 PM
To: Harald Alvestrand
Cc: Cullen Jennings; Christer Holmberg; mmusic WG
Subject: Re: BUNDLE/SDP : ISSUE#3: Should BUNDLE deal with DECLARATIVE SDP ?

Good point Harald. Thinking of it , I feel this question applies to all the declarative usages of SDP attributes in the context of BUNDLE.

>From Christer's and your point, I feel the BUNDLE specification should state it explicitly that only O/A procedures are supported for this version. That way, we handle all the attributes that has declarative semantics along with O/A or otherwise.

please let me know your thoughts.

Thanks
Suhas




On Thu, Oct 31, 2013 at 12:49 AM, Harald Alvestrand <hta@google.com<mailto:hta@google.com>> wrote:

Could you expand "declaratively" for me here? If it means "stated, not negotiated", this is the same as for many attrs in the draft already. If it means "never used in offer/answer", I agree with Christer.

31. okt. 2013 05:52 skrev "Suhas Nandakumar" <suhasietf@gmail.com<mailto:suhasietf@gmail.com>> følgende:

Hello All

  Magnus raised an important question while analyzing  RFC6064 SDP attributes related to RTSP SDP attributes for 3GPP.  Since these attributes are declaratively used, SHOULD BUNDLE be dealing with specifying the behavior in Non Offer/Answer Scenarios ?

If the answer is NO, we can assign category to be NOT IMPACTED for these attributes,

If the answer is YES, i think there needs to be more discussions on handling this scenario.

Please let me know your thoughts.


Cheers
Suhas

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