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Re: [sipcore] I-D Action: draft-ietf-sipcore-sessiontimer-race-01.txt

Paul Kyzivat <pkyzivat@alum.mit.edu> Mon, 05 March 2018 16:12 UTC

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From: Paul Kyzivat <pkyzivat@alum.mit.edu>
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Date: Mon, 05 Mar 2018 11:11:24 -0500
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Subject: Re: [sipcore] I-D Action: draft-ietf-sipcore-sessiontimer-race-01.txt
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Christer,

So far I have only skimmed the draft. (I *will* read it more carefully 
later.) A couple of comments:

1) Examples of the cases you are trying to clarify would be helpful.

2) in 3.1, am I right in concluding this is to cover the situation
    introduced by section 3.2?  But doesn't this also eliminate the
    mechanism for overtly turning off session timer by sending an
    invite without session-expires?

	Thanks,
	Paul

On 3/5/18 9:13 AM, internet-drafts@ietf.org wrote:
> 
> A New Internet-Draft is available from the on-line Internet-Drafts directories.
> This draft is a work item of the Session Initiation Protocol Core WG of the IETF.
> 
>          Title           : Session Initiation Protocol (SIP) Session Timer Glare Handling
>          Author          : Christer Holmberg
> 	Filename        : draft-ietf-sipcore-sessiontimer-race-01.txt
> 	Pages           : 7
> 	Date            : 2018-03-05
> 
> Abstract:
>     This document updates RFC 4028, by clarifying the procedures for
>     negotiating usage of the Session Initiation Protocol (SIP) session
>     timer mechansim, in order to avoid a race condition where both
>     endpoints trigger simultaneous negotiations.
> 
> 
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-sipcore-sessiontimer-race/
> 
> There are also htmlized versions available at:
> https://tools.ietf.org/html/draft-ietf-sipcore-sessiontimer-race-01
> https://datatracker.ietf.org/doc/html/draft-ietf-sipcore-sessiontimer-race-01
> 
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=draft-ietf-sipcore-sessiontimer-race-01
> 
> 
> Please note that it may take a couple of minutes from the time of submission
> until the htmlized version and diff are available at tools.ietf.org.
> 
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
> 
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