IETF Logo Mail Archive

[Detnet-dp-dt] detnet LSPs and PWs

Loa Andersson <loa@pi.nu> Mon, 13 February 2017 01:32 UTC

Return-Path: <loa@pi.nu>
X-Original-To: detnet-dp-dt@ietfa.amsl.com
Delivered-To: detnet-dp-dt@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 73ACC12956C for <detnet-dp-dt@ietfa.amsl.com>; Sun, 12 Feb 2017 17:32:42 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.9
X-Spam-Level:
X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RP_MATCHES_RCVD=-0.001, URIBL_BLOCKED=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 nCaZja6Rks2p for <detnet-dp-dt@ietfa.amsl.com>; Sun, 12 Feb 2017 17:32:39 -0800 (PST)
Received: from pipi.pi.nu (pipi.pi.nu [83.168.239.141]) (using TLSv1.1 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id D2E36129507 for <detnet-dp-dt@ietf.org>; Sun, 12 Feb 2017 17:32:38 -0800 (PST)
Received: from [192.168.1.11] (unknown [112.204.169.6]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: loa@pi.nu) by pipi.pi.nu (Postfix) with ESMTPSA id 94BDE18013BE; Mon, 13 Feb 2017 02:31:46 +0100 (CET)
From: Loa Andersson <loa@pi.nu>
To: "detnet-dp-dt@ietf.org" <detnet-dp-dt@ietf.org>, "Andrew G. Malis" <agmalis@gmail.com>, Stefano Ruffini <stefano.ruffini@ericsson.com>
Message-ID: <017eafad-3d74-c8f7-19cb-00027dabea9a@pi.nu>
Date: Mon, 13 Feb 2017 09:31:33 +0800
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.7.1
MIME-Version: 1.0
Content-Type: multipart/mixed; boundary="------------E4BBBC1932B424847A1E4A03"
Archived-At: <https://mailarchive.ietf.org/arch/msg/detnet-dp-dt/zhUR3vfjR_pZeUZ4cbHZRX08ylk>
Subject: [Detnet-dp-dt] detnet LSPs and PWs
X-BeenThere: detnet-dp-dt@ietf.org
X-Mailman-Version: 2.1.17
Precedence: list
List-Id: DetNet WG Data Plane Design Team <detnet-dp-dt.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/detnet-dp-dt>, <mailto:detnet-dp-dt-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/detnet-dp-dt/>
List-Post: <mailto:detnet-dp-dt@ietf.org>
List-Help: <mailto:detnet-dp-dt-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/detnet-dp-dt>, <mailto:detnet-dp-dt-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 13 Feb 2017 01:32:42 -0000

Folks,

The mail from Yuanlong mmade me go back and check the PW architecture 
and consult with Andy Malis and Stewart Bryant. So I have one more thing
that we should discuss on "Tuesday".

What Yaunlong said was: "IMHO, multiple layers of PW is a break from
the PWE3 architecture, and all DP/CP/MP things will become more
complicated."

It is correct that multi-layer pw's is problematic, though Andy said
that "if you have a good use case, you can do it".

The problem is that there is a native service processing (NSP) at the 
end of the PW. Multi-layer PWs will only do NSP at one level. I think
we should replace the MS-PW with an LSP. I've added one slide (9) and
change slide 8,9 and 11 in the earlier package. The other slides arere
for reference

I want Andy and Stewart to have a chance to review this prior to that
we commit too hard to it. Copied them.


/Loa
-- 


Loa Andersson                        email: loa@mail01.huawei.com
Senior MPLS Expert                          loa@pi.nu
Huawei Technologies (consultant)     phone: +46 739 81 21 64

v2.8.7 | Report a Bug | By Email