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

Christer Holmberg <christer.holmberg@ericsson.com> Thu, 15 March 2018 13:28 UTC

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From: Christer Holmberg <christer.holmberg@ericsson.com>
To: Paul Kyzivat <pkyzivat@alum.mit.edu>, "sipcore@ietf.org" <sipcore@ietf.org>
Thread-Topic: [sipcore] I-D Action: draft-ietf-sipcore-sessiontimer-race-01.txt
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Date: Thu, 15 Mar 2018 13:28:48 +0000
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Subject: Re: [sipcore] I-D Action: draft-ietf-sipcore-sessiontimer-race-01.txt
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Hi Paul,

> 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.

I will include that in the presentation, and in the next version of the draft.

Meanwhile, please take a look at the original e-mail I sent to the list:

https://www.ietf.org/mail-archive/web/sipcore/current/msg08096.html

---

> 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?

I don't think so. Can you explain how you come to that conclusion?

Regards,

Christer



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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> 

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