IETF Logo Mail Archive

Re: [sfc] New Version Notification for draft-vandevelde-sfc-nsh-length-overload-00.txt

Ron Parker <Ron_Parker@affirmednetworks.com> Mon, 17 October 2016 14:50 UTC

Return-Path: <Ron_Parker@affirmednetworks.com>
X-Original-To: sfc@ietfa.amsl.com
Delivered-To: sfc@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id BEEBD1297D4 for <sfc@ietfa.amsl.com>; Mon, 17 Oct 2016 07:50:43 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.601
X-Spam-Level:
X-Spam-Status: No, score=-2.601 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001] autolearn=ham autolearn_force=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 PKPlrpp_pxt0 for <sfc@ietfa.amsl.com>; Mon, 17 Oct 2016 07:50:42 -0700 (PDT)
Received: from hub021-ca-4.exch021.serverdata.net (hub021-ca-4.exch021.serverdata.net [64.78.22.171]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 18B341293EE for <sfc@ietf.org>; Mon, 17 Oct 2016 07:50:41 -0700 (PDT)
Received: from MBX021-W3-CA-2.exch021.domain.local ([10.254.4.78]) by HUB021-CA-4.exch021.domain.local ([10.254.4.39]) with mapi id 14.03.0319.002; Mon, 17 Oct 2016 07:50:41 -0700
From: Ron Parker <Ron_Parker@affirmednetworks.com>
To: "Van De Velde, Gunter (Nokia - BE)" <gunter.van_de_velde@nokia.com>, "sfc@ietf.org" <sfc@ietf.org>
Thread-Topic: New Version Notification for draft-vandevelde-sfc-nsh-length-overload-00.txt
Thread-Index: AQHSKFb3nGfrmaRz20ejmkNdPaiXgqCsuqOQ
Date: Mon, 17 Oct 2016 14:50:40 +0000
Message-ID: <CDF2F015F4429F458815ED2A6C2B6B0B838F61C5@MBX021-W3-CA-2.exch021.domain.local>
References: <147669153801.4599.10302546498954955094.idtracker@ietfa.amsl.com> <9D949D9D-FDB5-4512-B300-0DF3D2B00E38@alcatel-lucent.com>
In-Reply-To: <9D949D9D-FDB5-4512-B300-0DF3D2B00E38@alcatel-lucent.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
x-originating-ip: [50.205.79.154]
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
Archived-At: <https://mailarchive.ietf.org/arch/msg/sfc/bQtfd1H-K8PnT-8Q2JjkZIdCQeM>
Subject: Re: [sfc] New Version Notification for draft-vandevelde-sfc-nsh-length-overload-00.txt
X-BeenThere: sfc@ietf.org
X-Mailman-Version: 2.1.17
Precedence: list
List-Id: Network Service Chaining <sfc.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/sfc>, <mailto:sfc-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/sfc/>
List-Post: <mailto:sfc@ietf.org>
List-Help: <mailto:sfc-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/sfc>, <mailto:sfc-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 17 Oct 2016 14:50:44 -0000

Gunter,

I strongly support this proposal.   It brings more specificity to Type 1 which will undoubtedly improve interworking between different implementations and between different administrative domains.

   Ron


-----Original Message-----
From: sfc [mailto:sfc-bounces@ietf.org] On Behalf Of Van De Velde, Gunter (Nokia - BE)
Sent: Monday, October 17, 2016 5:15 AM
To: sfc@ietf.org
Subject: [GRAYMAIL] [sfc] FW: New Version Notification for draft-vandevelde-sfc-nsh-length-overload-00.txt

Short text about overloading NSH length field for NSH MD Type-1 as context allocation type, including proposal for backward compatibility. 

G/

------

On 17/10/2016, 10:05, "internet-drafts@ietf.org" <internet-drafts@ietf.org> wrote:

    
    A new version of I-D, draft-vandevelde-sfc-nsh-length-overload-00.txt
    has been successfully submitted by Gunter Van de Velde and posted to the
    IETF repository.
    
    Name:		draft-vandevelde-sfc-nsh-length-overload
    Revision:	00
    Title:		Network Services Header Context Allocation Identifier
    Document date:	2016-10-17
    Group:		Individual Submission
    Pages:		5
    URL:            https://www.ietf.org/internet-drafts/draft-vandevelde-sfc-nsh-length-overload-00.txt
    Status:         https://datatracker.ietf.org/doc/draft-vandevelde-sfc-nsh-length-overload/
    Htmlized:       https://tools.ietf.org/html/draft-vandevelde-sfc-nsh-length-overload-00
    
    
    Abstract:
       The specification of the NSH MD Type 1 header [draft-ietf-sfc-nsh]
       mandates four Context Headers, 4-byte each, and they MUST be added
       immediately following the Service Path Header.  As direct
       consequence, an NSH MD Type 1 header is always Length 0x6 (six 4-byte
       words).  As a result, the Length field of the NSH MD Type 1 header
       provides an information which is known by simply looking at the "MD
       Type" field.  However, while [draft-ietf-sfc-nsh] does not specify
       the encoding of these Context Headers, other specifications have
       started to do so.  A need to distinguish types of Context Headers
       therefore arises.
    
       This draft proposes to overload the Length field of an NSH MD Type 1
       as Meta-Data context allocation identifier and to create a IANA
       repository for NSH MD Type 1 allocation schemes.  The NSH MD Type 1
       Length field overload intends to allow universal understanding at any
       network location and by any network device of the context allocation
       structure.
    
    
                                                                                      
    
    
    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.
    
    The IETF Secretariat
    
    

_______________________________________________
sfc mailing list
sfc@ietf.org
https://www.ietf.org/mailman/listinfo/sfc

v2.23.0 | Report a Bug | By Email