RE: [mpls] Last Call: <draft-ietf-mpls-psc-updates-03.txt> (Updates to MPLS Transport Profile Linear Protection) to Proposed Standard

"Adrian Farrel" <adrian@olddog.co.uk> Mon, 31 March 2014 20:16 UTC

Return-Path: <adrian@olddog.co.uk>
X-Original-To: ietf@ietfa.amsl.com
Delivered-To: ietf@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D02DC1A6FBB; Mon, 31 Mar 2014 13:16:25 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -99.783
X-Spam-Level:
X-Spam-Status: No, score=-99.783 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_BL_SPAMCOP_NET=1.347, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_SORBS_WEB=0.77, USER_IN_WHITELIST=-100] autolearn=no
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 5n0Wb7lmscCq; Mon, 31 Mar 2014 13:16:23 -0700 (PDT)
Received: from asmtp3.iomartmail.com (asmtp3.iomartmail.com [62.128.201.159]) by ietfa.amsl.com (Postfix) with ESMTP id 77A531A6FB4; Mon, 31 Mar 2014 13:16:23 -0700 (PDT)
Received: from asmtp3.iomartmail.com (localhost.localdomain [127.0.0.1]) by asmtp3.iomartmail.com (8.13.8/8.13.8) with ESMTP id s2VKGJBU001708; Mon, 31 Mar 2014 21:16:19 +0100
Received: from 950129200 (13.17.90.92.rev.sfr.net [92.90.17.13]) (authenticated bits=0) by asmtp3.iomartmail.com (8.13.8/8.13.8) with ESMTP id s2VKGHej001693 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO); Mon, 31 Mar 2014 21:16:18 +0100
From: Adrian Farrel <adrian@olddog.co.uk>
To: 'Eric Osborne' <eric@notcom.com>
References: <08fb01cf4932$a0b51c50$e21f54f0$@olddog.co.uk> <CA+97oKNeKjAn5DmxTkFQPx6ifYeUaWYgMqUfT7EG=TH6yf48Nw@mail.gmail.com>
In-Reply-To: <CA+97oKNeKjAn5DmxTkFQPx6ifYeUaWYgMqUfT7EG=TH6yf48Nw@mail.gmail.com>
Subject: RE: [mpls] Last Call: <draft-ietf-mpls-psc-updates-03.txt> (Updates to MPLS Transport Profile Linear Protection) to Proposed Standard
Date: Mon, 31 Mar 2014 21:16:17 +0100
Message-ID: <005101cf4d1e$13c74da0$3b55e8e0$@olddog.co.uk>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
X-Mailer: Microsoft Outlook 14.0
Thread-Index: AQEtX0VsC3HbzAHU8DO//v8gDWm6EAIxxmwdnC3uDgA=
Content-Language: en-gb
X-TM-AS-MML: disable
X-TM-AS-Product-Ver: IMSS-7.1.0.1576-7.5.0.1017-20602.002
X-TM-AS-Result: No--33.671-10.0-31-10
X-imss-scan-details: No--33.671-10.0-31-10
X-TMASE-MatchedRID: EMyCvCfVN1Ezx9GDMr0HvzYTypjB3iDVuikHZcC6ceATVJPv0YKEKZiF 91oJeq4SC2LSbHrzHY02HZCtTkRx1Pd55AQ+b0rfuZH4LSX2+NW3dp6DuD+6wC62hjZS0WoYwqK BAza4rVvv7KQvOHjFKOQrukFcodKLkRgNtybE2t+jafQQYN4dhHH1PtMiCrmFRJWmeOMHa+Sqs5 KfY652zxgmeC7wGtsQ1DYVF1+wlwdCzHFhiypoVppWgCLYjjT9BdebOqawiLuB7hpizqoTJ/aox E42c1lDlZaHSIhaFDg3ePVDw45PxZj50ewQ/8wVy7TSWcbz49bKIQXG0L1M7Jy1Yc8tPkV9zcwT glIp/qOAl4UGeuDxkbBWFDUa0Cpgg3V8xGMW7vfKl4yJoI+fG5rTnsbMps30DO+DX+rUwfY30Ee Cx5K2K3WVib4qoeH9nzUT9qf9ruhroTn0jEcZf+QoIU4rAATMVNyVbFFiiaAz91mDYZLM5Q+7/Q uPSbIryf/0I/NH8I6WJcbpNaIEAPs6AFvEdeZfHPCema1j/6t9LQinZ4QefL6qvLNjDYTwzz3je hzeneyrusVRy4an8bxAi7jPoeEQftwZ3X11IV0=
Archived-At: http://mailarchive.ietf.org/arch/msg/ietf/1QAvYibFiHxZKoJoeNdjQbcspHE
Cc: mpls@ietf.org, ietf@ietf.org
X-BeenThere: ietf@ietf.org
X-Mailman-Version: 2.1.15
Precedence: list
Reply-To: adrian@olddog.co.uk
List-Id: IETF-Discussion <ietf.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/ietf>, <mailto:ietf-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/ietf/>
List-Post: <mailto:ietf@ietf.org>
List-Help: <mailto:ietf-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/ietf>, <mailto:ietf-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 31 Mar 2014 20:16:26 -0000

Thanks Eric,

"reject the message" means send some form of error response?
Or do you mean "drop the message" and "vigorously report it"?

Thanks,
Adrian

> -----Original Message-----
> From: Eric Osborne [mailto:eric@notcom.com]
> Sent: 31 March 2014 20:09
> To: Adrian Farrel
> Cc: ietf@ietf.org; mpls@ietf.org
> Subject: Re: [mpls] Last Call: <draft-ietf-mpls-psc-updates-03.txt> (Updates
to
> MPLS Transport Profile Linear Protection) to Proposed Standard
> 
> Hello Adrian, WG-
> 
>   I propose this:
> 
> Malformed TLV: reject the message and vigorously report it
> Unknown TLV type: report the TLV, ignore the TLV and process the rest
> of the message
> 
> I'm open to other opinions, though.
> 
> 
> 
> 
> eric
> 
> On Wed, Mar 26, 2014 at 4:33 PM, Adrian Farrel <adrian@olddog.co.uk> wrote:
> > Hi,
> >
> > I have one issue I want to bring up as a last call comment. I discussed it
> > briefly with Eric and we agreed it is something that needs wider discussion
than
> > just a late editorial change.
> >
> > Currently 6378 does not describe the format of PSC TLVs and
> > draft-ietf-mpls-tp-itu introduces one without defining the format tightly.
> > Therefore, this document contains a simple statement of the fields and
> meanings
> > in a TLV.
> >
> > However, 6378 also does not state how to handle:
> > - a malformed TLV
> > - an unknown TLV type
> >
> > We need to add some simple text to cover this.
> >
> > Options for each of the above are:
> > - ignore the TLV but process the message
> > - report the TLV but ignore the TLV and process the message
> > - ignore the message
> > - report the message but ignore it
> > - reject the message
> >
> > Thanks,
> > Adrian
> >
> >> -----Original Message-----
> >> From: mpls [mailto:mpls-bounces@ietf.org] On Behalf Of The IESG
> >> Sent: 26 March 2014 19:57
> >> To: IETF-Announce
> >> Cc: mpls@ietf.org
> >> Subject: [mpls] Last Call: <draft-ietf-mpls-psc-updates-03.txt> (Updates to
> > MPLS
> >> Transport Profile Linear Protection) to Proposed Standard
> >>
> >>
> >> The IESG has received a request from the Multiprotocol Label Switching WG
> >> (mpls) to consider the following document:
> >> - 'Updates to MPLS Transport Profile Linear Protection'
> >>   <draft-ietf-mpls-psc-updates-03.txt> as Proposed Standard
> >>
> >> The IESG plans to make a decision in the next few weeks, and solicits
> >> final comments on this action. Please send substantive comments to the
> >> ietf@ietf.org mailing lists by 2014-04-09. Exceptionally, comments may be
> >> sent to iesg@ietf.org instead. In either case, please retain the
> >> beginning of the Subject line to allow automated sorting.
> >>
> >> Abstract
> >>
> >>    This document contains four updates to the Protection State
> >>    Coordination (PSC) logic defined in RFC6378, "MPLS Transport Profile
> >>    (MPLS-TP) Linear Protection" . Two of the updates correct existing
> >>    behavior.  The third clarifies a behavior which was not explained in
> >>    the RFC, and the fourth adds rules around handling capabilities
> >>    mismatches.
> >>
> >>
> >> The file can be obtained via
> >> http://datatracker.ietf.org/doc/draft-ietf-mpls-psc-updates/
> >>
> >> IESG discussion can be tracked via
> >> http://datatracker.ietf.org/doc/draft-ietf-mpls-psc-updates/ballot/
> >>
> >> No IPR declarations have been submitted directly on this I-D.
> >>
> >> _______________________________________________
> >> mpls mailing list
> >> mpls@ietf.org
> >> https://www.ietf.org/mailman/listinfo/mpls
> >
> > _______________________________________________
> > mpls mailing list
> > mpls@ietf.org
> > https://www.ietf.org/mailman/listinfo/mpls