[Pce] My Comment on draft-lee-pce-flexible-grid

Julien Meuric <julien.meuric@orange.com> Thu, 20 July 2017 08:28 UTC

Return-Path: <julien.meuric@orange.com>
X-Original-To: pce@ietfa.amsl.com
Delivered-To: pce@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id C6095127869; Thu, 20 Jul 2017 01:28:12 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -3.535
X-Spam-Level:
X-Spam-Status: No, score=-3.535 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_MED=-2.3, RP_MATCHES_RCVD=-0.001, SPF_SOFTFAIL=0.665] 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 xmNmOhft4z2e; Thu, 20 Jul 2017 01:28:11 -0700 (PDT)
Received: from r-mail2.rd.orange.com (r-mail2.rd.orange.com [217.108.152.42]) by ietfa.amsl.com (Postfix) with ESMTP id DD6C0129B3A; Thu, 20 Jul 2017 01:28:07 -0700 (PDT)
Received: from r-mail2.rd.orange.com (localhost.localdomain [127.0.0.1]) by localhost (Postfix) with SMTP id 84A305D8B1E; Thu, 20 Jul 2017 10:28:06 +0200 (CEST)
Received: from FTRDCH01.rd.francetelecom.fr (unknown [10.194.32.11]) by r-mail2.rd.orange.com (Postfix) with ESMTP id CDA2B5D8B16; Thu, 20 Jul 2017 10:28:04 +0200 (CEST)
Received: from [10.192.150.180] (10.192.150.180) by FTRDCH01.rd.francetelecom.fr (10.194.32.11) with Microsoft SMTP Server id 14.3.319.2; Thu, 20 Jul 2017 10:28:04 +0200
From: Julien Meuric <julien.meuric@orange.com>
Organization: Orange
To: "pce@ietf.org" <pce@ietf.org>, draft-lee-pce-flexible-grid@ietf.org
Message-ID: <4c3a734a-d04c-937b-5273-35c8f04f8179@orange.com>
Date: Thu, 20 Jul 2017 10:28:04 +0200
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 7bit
Content-Language: en-US
Archived-At: <https://mailarchive.ietf.org/arch/msg/pce/in6IzGrFL0ODILqmYtqW6jDW6QQ>
Subject: [Pce] My Comment on draft-lee-pce-flexible-grid
X-BeenThere: pce@ietf.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: Path Computation Element <pce.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/pce>, <mailto:pce-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/pce/>
List-Post: <mailto:pce@ietf.org>
List-Help: <mailto:pce-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/pce>, <mailto:pce-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 20 Jul 2017 08:28:13 -0000

Hi,

The discussion during the meeting suggests that I need to clarify my
comment about draft-lee-pce-flexible-grid.

This I-D is very similar to draft-ietf-pce-wson-rwa-ext, which addresses
the exact same problem over a slightly different WDM label space
(running a side-by-side diff between them appears to be very practical).
This new I-D requests the creation of one object and 3 TLVs, which are
identical to the ones created in the WSON.
As a result, I believe the latter should be reused as a starting popint.
Covering the flexi-grid case may just need to allocate new flag in the
object header to identify the WDM type we're dealing with, and document
the flexi-grid-specific assumptions (if any).

Thanks,

Julien