Re: [rtcweb] Clarification on offer/answer in jsep-01

Francois Audet <francois.audet@skype.net> Tue, 28 August 2012 04:48 UTC

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From: Francois Audet <francois.audet@skype.net>
To: Kaiduan Xie <kaiduanx@gmail.com>
Thread-Topic: [rtcweb] Clarification on offer/answer in jsep-01
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Date: Tue, 28 Aug 2012 04:48:07 +0000
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Cc: "rtcweb@ietf.org" <rtcweb@ietf.org>
Subject: Re: [rtcweb] Clarification on offer/answer in jsep-01
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Indeed, this appear to contradict 3264, and would cause breakage.

On Aug 27, 2012, at 18:41, "Kaiduan Xie" <kaiduanx@gmail.com> wrote:

> Hi all,
> 
> I do not understand the statement below from 4.2. Session Descriptions
> and State Machine
> 
> "As in [RFC3264], an offerer can send an offer, and update it as long
> as it has not been answered."
> 
> However, per rfc3264 http://tools.ietf.org/html/rfc3264 section 4
> Protocol Operation,
> 
> "At any time, either agent MAY generate a new offer that updates the
> session. However, it MUST NOT generate a new offer if it has
> received an offer which it has not yet answered or rejected.
> Furthermore, it MUST NOT generate a new offer if it has generated a
> prior offer for which it has not yet received an answer or a
> rejection."
> 
> Please look the last sentence. Can anyone explain why JSEP introduces
> something different than RFC3264 please?
> 
> Best regards,
> 
> /Kaiduan
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