[iccrg] About Path Congestion, do you have an interest at it?

Dangjuanna <dangjuanna@huawei.com> Fri, 15 March 2019 01:46 UTC

Return-Path: <dangjuanna@huawei.com>
X-Original-To: iccrg@ietfa.amsl.com
Delivered-To: iccrg@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 04CE31311B3 for <iccrg@ietfa.amsl.com>; Thu, 14 Mar 2019 18:46:33 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.599
X-Spam-Level:
X-Spam-Status: No, score=-2.599 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-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 nJZrhptnI7xv for <iccrg@ietfa.amsl.com>; Thu, 14 Mar 2019 18:46:30 -0700 (PDT)
Received: from huawei.com (szxga02-in.huawei.com [45.249.212.188]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id F15A9130F36 for <iccrg@irtf.org>; Thu, 14 Mar 2019 18:46:29 -0700 (PDT)
Received: from nkgeml412-hub.china.huawei.com (unknown [172.30.72.56]) by Forcepoint Email with ESMTP id 05E2132AD4863312809C for <iccrg@irtf.org>; Fri, 15 Mar 2019 09:46:25 +0800 (CST)
Received: from NKGEML515-MBX.china.huawei.com ([fe80::a54a:89d2:c471:ff]) by nkgeml412-hub.china.huawei.com ([10.98.56.73]) with mapi id 14.03.0415.000; Fri, 15 Mar 2019 09:46:20 +0800
From: Dangjuanna <dangjuanna@huawei.com>
To: "iccrg@irtf.org" <iccrg@irtf.org>
Thread-Topic: About Path Congestion, do you have an interest at it?
Thread-Index: AdTa0Fiz9aXJeAXGRZeLYFIxl57ybA==
Date: Fri, 15 Mar 2019 01:46:20 +0000
Message-ID: <D3E4F603943C4046A08B2F4037A66BB7C66921E2@NKGEML515-MBX.china.huawei.com>
Accept-Language: zh-CN, en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
x-originating-ip: [10.111.176.239]
Content-Type: multipart/alternative; boundary="_000_D3E4F603943C4046A08B2F4037A66BB7C66921E2NKGEML515MBXchi_"
MIME-Version: 1.0
X-CFilter-Loop: Reflected
Archived-At: <https://mailarchive.ietf.org/arch/msg/iccrg/jwXmzPFCJm4RcpfLHD1-3sVTcyA>
Subject: [iccrg] About Path Congestion, do you have an interest at it?
X-BeenThere: iccrg@irtf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "Discussions of Internet Congestion Control Research Group \(ICCRG\)" <iccrg.irtf.org>
List-Unsubscribe: <https://www.irtf.org/mailman/options/iccrg>, <mailto:iccrg-request@irtf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/iccrg/>
List-Post: <mailto:iccrg@irtf.org>
List-Help: <mailto:iccrg-request@irtf.org?subject=help>
List-Subscribe: <https://www.irtf.org/mailman/listinfo/iccrg>, <mailto:iccrg-request@irtf.org?subject=subscribe>
X-List-Received-Date: Fri, 15 Mar 2019 01:46:39 -0000

Hi everyone,
Recently I have submitted the draft named draft-dang-ippm-congestion(https://tools.ietf.org/html/draft-dang-ippm-congestion-01) and draft-dang-ippm-multiple-path-measurement-01.txt (https://tools.ietf.org/id/draft-dang-ippm-multiple-path-measurement-01.txt).
I saw that our WG is concerned about congestion. So I want to know if we are interested in my drafts?

There are some questions I need to discuss with the experts.

Q1: Is path congestion required? Is this requirement strong?
  Import ServiceA Traffic to the path1
                  \
                   \
                   NodeA----------NodeN1----------NodeN2----------NodeB
                                 Figure: Path1
As figure Path1 is shown,
[Premise] Path1 is from Node A to NodeB. Path1 may be MPLS TE, SR TE Tunnel or VXLAN.
[Requirement] Get the congestion degree of Path1 in order to make sure the service experience.

Before, everyone was very concerned about the congestion of single device nodes. Along with the network development,we should pay more attention to the business perspective. Therefore, the path perspective of carrying the service is also required. I understand that the requirement for path congestion exists.

And I think this demand will become more and more important.

Q2: What is path congestion?
For the sake of explanation, I introduce a concept named Path Queue. The PathA Queue is activated if congestion occurs at any node along the Path1. Furthermore, when the PathA Queue is activated, it indicates that the path has been congested.


What do you think of it?
I am very happy and open to get everyone's thoughts.

Thank you,
Joanna