IETF Logo Mail Archive

Re: [straw] WGLC Comments on draft-ietf-straw-b2bua-loop-detection-02

Christer Holmberg <christer.holmberg@ericsson.com> Thu, 19 September 2013 10:11 UTC

Return-Path: <christer.holmberg@ericsson.com>
X-Original-To: straw@ietfa.amsl.com
Delivered-To: straw@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A3F4921F99CC for <straw@ietfa.amsl.com>; Thu, 19 Sep 2013 03:11:48 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -5.758
X-Spam-Level:
X-Spam-Status: No, score=-5.758 tagged_above=-999 required=5 tests=[AWL=0.491, BAYES_00=-2.599, HELO_EQ_SE=0.35, RCVD_IN_DNSWL_MED=-4]
Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id rMv1duFWFREA for <straw@ietfa.amsl.com>; Thu, 19 Sep 2013 03:11:43 -0700 (PDT)
Received: from mailgw1.ericsson.se (mailgw1.ericsson.se [193.180.251.45]) by ietfa.amsl.com (Postfix) with ESMTP id 1E1AA21F99CD for <straw@ietf.org>; Thu, 19 Sep 2013 03:11:42 -0700 (PDT)
X-AuditID: c1b4fb2d-b7f738e000003ee3-f0-523acddd84e0
Received: from ESESSHC019.ericsson.se (Unknown_Domain [153.88.253.124]) by mailgw1.ericsson.se (Symantec Mail Security) with SMTP id 7B.64.16099.DDDCA325; Thu, 19 Sep 2013 12:11:42 +0200 (CEST)
Received: from ESESSMB209.ericsson.se ([169.254.9.146]) by ESESSHC019.ericsson.se ([153.88.183.75]) with mapi id 14.02.0328.009; Thu, 19 Sep 2013 12:11:42 +0200
From: Christer Holmberg <christer.holmberg@ericsson.com>
To: "Hutton, Andrew" <andrew.hutton@siemens-enterprise.com>, "straw@ietf.org" <straw@ietf.org>
Thread-Topic: WGLC Comments on draft-ietf-straw-b2bua-loop-detection-02
Thread-Index: Ac61Ggt1QXAqSuiTQy2zm/49bhHdvwABmZfg
Date: Thu, 19 Sep 2013 10:11:41 +0000
Message-ID: <7594FB04B1934943A5C02806D1A2204B1C4A7805@ESESSMB209.ericsson.se>
References: <9F33F40F6F2CD847824537F3C4E37DDF17BCC99C@MCHP04MSX.global-ad.net>
In-Reply-To: <9F33F40F6F2CD847824537F3C4E37DDF17BCC99C@MCHP04MSX.global-ad.net>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
x-originating-ip: [153.88.183.17]
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrDLMWRmVeSWpSXmKPExsUyM+Jvje69s1ZBBu+3CFmc7etit7jV/JjV gcljyZKfTB43br9nDmCK4rJJSc3JLEst0rdL4Mp4MKWw4B5Pxe/1h1kaGDdzdTFycEgImEis fx3XxcgJZIpJXLi3nq2LkYtDSOAwo8SZ98egnCWMEpd3d7OANLAJWEh0/9MGaRARSJBY2bqc DcQWFnCT2HhsITtE3F1i3q2rzBC2kcSSqzfBbBYBVYm+mafBangFfCV+/XzDBjJSSMBPYl9z DUiYU8BfYtnl30wgNiPQPd9PrQGzmQXEJW49mc8EcaeAxJI955khbFGJl4//sUK8oiixvF8O olxHYsHuT2wQtrbEsoWvmSG2CkqcnPmEZQKj6CwkU2chaZmFpGUWkpYFjCyrGNlzEzNz0ssN NzECY+Dglt+6OxhPnRM5xCjNwaIkzrtJ70ygkEB6YklqdmpqQWpRfFFpTmrxIUYmDk6pBkbV SyEpE+/Ne/DjruNbO1Nh3oS3OW6lr3O+sH4Myz39fx27yi5nXnv/aL+EuGwd8VVn3Oyv7RRR v96WWrAtdUOJ+IOt9hYS4ssZZ697ssn/I99Lbm8hthU39hs4F5oe2ZK7sLiykfuj4O7nPz8K X1eeP1Exc8Kjv73luQwy2Q5XrkclbLeZt0GJpTgj0VCLuag4EQBXZx7uTwIAAA==
Subject: Re: [straw] WGLC Comments on draft-ietf-straw-b2bua-loop-detection-02
X-BeenThere: straw@ietf.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: "Sip Traversal Required for Applications to Work \(STRAW\) working group discussion list" <straw.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/straw>, <mailto:straw-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/straw>
List-Post: <mailto:straw@ietf.org>
List-Help: <mailto:straw-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/straw>, <mailto:straw-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 19 Sep 2013 10:11:48 -0000

(As co-chair)

Hi Andy,

Thank You Very Much for the review! 

Regards,

Christer



-----Original Message-----
From: straw-bounces@ietf.org [mailto:straw-bounces@ietf.org] On Behalf Of Hutton, Andrew
Sent: 19. syyskuuta 2013 12:25
To: straw@ietf.org
Subject: [straw] WGLC Comments on draft-ietf-straw-b2bua-loop-detection-02

I have a couple of comments.

1. Section 4 states " It is RECOMMENDED that B2BUAs implement the loop-detection mechanism for the Via header field, as defined for a Proxy in [RFC5393]."

This could be changed to a MUST requirement by changing it to "B2BUAs MUST implement the updates to [RFC3261] for strengthening the requirements to perform loop detection as specified in [RFC5393]".  I prefer this because it enforces the requirement that some form of loop-detection must be in place when forking.

 
2. Section 5 states " B2BUAs MAY perform the same actions for in-dialog requests, but doing so may cause issues with devices that set Max-Forwards values based upon the number of received Via or Record-Route headers"

I think this could do with some more explanation regarding mid-dialog requests and the issues associated with setting Max-Forwards based on Via or Record-Route. It would be good to remove this "MAY" and have clear requirements for handling mid-dialog requests. Do we really need to have the text about setting based on the number of via or record-route headers?


Regards
Andy
_______________________________________________
straw mailing list
straw@ietf.org
https://www.ietf.org/mailman/listinfo/straw

v2.23.0 | Report a Bug | By Email