Re: [mpls] Alvaro Retana's No Objection on draft-ietf-mpls-ldp-mrt-06: (with COMMENT)
Chris Bowers <cbowers@juniper.net> Mon, 06 November 2017 20:10 UTC
Return-Path: <cbowers@juniper.net>
X-Original-To: mpls@ietfa.amsl.com
Delivered-To: mpls@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1])
by ietfa.amsl.com (Postfix) with ESMTP id 1D50013F698;
Mon, 6 Nov 2017 12:10:56 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.021
X-Spam-Level:
X-Spam-Status: No, score=-2.021 tagged_above=-999 required=5
tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1,
DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_NONE=-0.0001,
RCVD_IN_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001]
autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key)
header.d=juniper.net
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 Xfe8Voqe9fdo; Mon, 6 Nov 2017 12:10:53 -0800 (PST)
Received: from NAM01-BY2-obe.outbound.protection.outlook.com
(mail-by2nam01on0108.outbound.protection.outlook.com [104.47.34.108])
(using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits))
(No client certificate requested)
by ietfa.amsl.com (Postfix) with ESMTPS id 8A9A713AF75;
Mon, 6 Nov 2017 12:10:53 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=juniper.net;
s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version;
bh=ftedjtj5YdSkFYJSoPRZM7pnPE+NM+gI9E0xWm56AuY=;
b=RZE7DVvQoksbs8w06eeTxZFMTazC2UxVNGiw0eqqPB5yMjRnl+a+26Y84eTmt8aPvEffmjRdJn/Atv4d4Bnb3nvJPMmrd7A2MfHJGm+aixHuo+NQSyQM13HujG546E1mpSKfOuvs1bjM6tijP/FjZOmUL8iVZsNoQkB/4jiVTBE=
Received: from CY4PR05MB2823.namprd05.prod.outlook.com (10.169.182.145) by
CY4PR05MB2823.namprd05.prod.outlook.com (10.169.182.145) with Microsoft SMTP
Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384) id
15.20.218.6; Mon, 6 Nov 2017 20:10:52 +0000
Received: from CY4PR05MB2823.namprd05.prod.outlook.com ([10.169.182.145]) by
CY4PR05MB2823.namprd05.prod.outlook.com ([10.169.182.145]) with mapi id
15.20.0218.005; Mon, 6 Nov 2017 20:10:52 +0000
From: Chris Bowers <cbowers@juniper.net>
To: Alvaro Retana <aretana@cisco.com>, The IESG <iesg@ietf.org>
CC: "draft-ietf-mpls-ldp-mrt@ietf.org" <draft-ietf-mpls-ldp-mrt@ietf.org>,
"tsaad@cisco.com" <tsaad@cisco.com>, "mpls-chairs@ietf.org"
<mpls-chairs@ietf.org>, "loa@pi.nu" <loa@pi.nu>, "mpls@ietf.org"
<mpls@ietf.org>
Thread-Topic: Alvaro Retana's No Objection on draft-ietf-mpls-ldp-mrt-06:
(with COMMENT)
Thread-Index: AQHTLMEJ3ErAnyX/wUi9ZjP8d0Xz5qMH4m0g
Date: Mon, 6 Nov 2017 20:10:52 +0000
Message-ID: <CY4PR05MB2823ADDC803FC452A7A1A7FEA9500@CY4PR05MB2823.namprd05.prod.outlook.com>
References: <150532856962.30505.5556259079704360665.idtracker@ietfa.amsl.com>
In-Reply-To: <150532856962.30505.5556259079704360665.idtracker@ietfa.amsl.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
x-originating-ip: [24.55.30.171]
x-ms-publictraffictype: Email
x-microsoft-exchange-diagnostics: 1; CY4PR05MB2823;
6:yrQJuUawzGZIHA3iDZf9IwFPyHfPaiWU9H4tJuY5DXTz0FhSQ60/pbtwyK3O0A1H2zn00qCyv8bf7mYxyNbR4Aq1GK6tB35zVn24erlNeo13dVcDInut0uxMCfcpnLct5ThNL2gkeisQl45gDFT2asClN0pjjAkLAssH1KMkOWlwdaZmcXMz1pFNAYYjrfueg7CBdG+wHeUZflgumwrbaVJrxQbz8rFZaDyeIh+Edwykc0bbwYrSC0NfZ+GaWQy3Oi7sW9EmEbfzlLAgSKfEzYVavKdKuk12lVJ3jdhf4oT4yBr12o1i7OZI/97xeMzamXgYDLMQqj0ODKM+LWWJw3fdhw7sJ7Up4GALQvIaVQk=;
5:A5ebrBE9H8suJZPQsIneli0SFAcVCKyahB0T7zWRa6gLYQk19E/LmrM/gWz3Q1+6eYst1RCLUg32k3BbKyGNJvNNaACXQ7Jz/UtlSaVKSiC3hnnjdgTTndSs0s81wQNRJn2WSu+AOfpuHrXiy11hPo2U0kFZ0T4+L8Ba/QUSOQ4=;
24:uA9FcV97hh4eumNFJ2HLUdrD6AKQfPAPY9mDc/a9mo+nQYro+lmf4fdpH18ga8BS4KzsShPS/DWKEK5L0TUXEO6dlpcnMlLT/3jGfjgjEIc=;
7:9Ow4JgzaUUhjD0g+Db46HfS5WmzJ2fjWxW8h9XOdsB/U95wkoNVLm2f5OvZv/FD8/zYbmEVMIUV7N9d4RNqnArkfrz7Iugq37FvFNIJVB3bhbBXg0eigDIn6wWabUEXnGOylA2zMLaLLWMOww6TiFaRdfKYzI3HQe5h3U3lDWTgJM0s30G7mPxWWmP1IEupf8w7OBlDuEBD6/K0XKw1NQFRmdxzSrinVIr8ebdyLIa9fpRJLpA1cIgX+/SB1S/Jl
x-ms-exchange-antispam-srfa-diagnostics: SSOS;
x-ms-office365-filtering-correlation-id: df492835-95cd-4008-5885-08d525527af7
x-ms-office365-filtering-ht: Tenant
x-microsoft-antispam: UriScan:; BCL:0; PCL:0;
RULEID:(22001)(4534020)(4602075)(4627115)(201703031133081)(201702281549075)(48565401081)(2017052603249);
SRVR:CY4PR05MB2823;
x-ms-traffictypediagnostic: CY4PR05MB2823:
authentication-results: spf=none (sender IP is )
smtp.mailfrom=cbowers@juniper.net;
x-exchange-antispam-report-test: UriScan:(120809045254105)(166708455590820)(95692535739014);
x-microsoft-antispam-prvs: <CY4PR05MB2823AAAF043D3182349A2BB2A9500@CY4PR05MB2823.namprd05.prod.outlook.com>
x-exchange-antispam-report-cfa-test: BCL:0; PCL:0;
RULEID:(100000700101)(100105000095)(100000701101)(100105300095)(100000702101)(100105100095)(6040450)(2401047)(5005006)(8121501046)(3231021)(3002001)(10201501046)(93006095)(93001095)(100000703101)(100105400095)(6055026)(6041248)(20161123564025)(201703131423075)(201702281528075)(201703061421075)(201703061406153)(20161123555025)(20161123558100)(20161123560025)(20161123562025)(6072148)(201708071742011)(100000704101)(100105200095)(100000705101)(100105500095);
SRVR:CY4PR05MB2823; BCL:0; PCL:0;
RULEID:(100000800101)(100110000095)(100000801101)(100110300095)(100000802101)(100110100095)(100000803101)(100110400095)(100000804101)(100110200095)(100000805101)(100110500095);
SRVR:CY4PR05MB2823;
x-forefront-prvs: 048396AFA0
x-forefront-antispam-report: SFV:NSPM;
SFS:(10019020)(6009001)(39860400002)(376002)(346002)(51914003)(189002)(13464003)(51444003)(199003)(6246003)(316002)(9686003)(4326008)(6306002)(6116002)(102836003)(189998001)(25786009)(230783001)(2950100002)(3846002)(3280700002)(3660700001)(8936002)(81156014)(8676002)(2906002)(81166006)(53936002)(74316002)(54906003)(66066001)(86362001)(966005)(7696004)(55016002)(97736004)(478600001)(110136005)(6436002)(6506006)(99286004)(229853002)(101416001)(2900100001)(305945005)(53546010)(54356999)(50986999)(68736007)(33656002)(5660300001)(7736002)(106356001)(76176999)(77096006)(14454004)(105586002);
DIR:OUT; SFP:1102; SCL:1; SRVR:CY4PR05MB2823;
H:CY4PR05MB2823.namprd05.prod.outlook.com; FPR:; SPF:None; PTR:InfoNoRecords;
MX:1; A:1; LANG:en;
received-spf: None (protection.outlook.com: juniper.net does not designate
permitted sender hosts)
spamdiagnosticoutput: 1:99
spamdiagnosticmetadata: NSPM
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
MIME-Version: 1.0
X-OriginatorOrg: juniper.net
X-MS-Exchange-CrossTenant-Network-Message-Id: df492835-95cd-4008-5885-08d525527af7
X-MS-Exchange-CrossTenant-originalarrivaltime: 06 Nov 2017 20:10:52.1963 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: bea78b3c-4cdb-4130-854a-1d193232e5f4
X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY4PR05MB2823
Archived-At: <https://mailarchive.ietf.org/arch/msg/mpls/cT4TA7-mHRSbukrzV0X2yJXwKl8>
Subject: Re: [mpls] Alvaro Retana's No Objection on
draft-ietf-mpls-ldp-mrt-06: (with COMMENT)
X-BeenThere: mpls@ietf.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: Multi-Protocol Label Switching WG <mpls.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/mpls>,
<mailto:mpls-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/mpls/>
List-Post: <mailto:mpls@ietf.org>
List-Help: <mailto:mpls-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/mpls>,
<mailto:mpls-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 06 Nov 2017 20:10:56 -0000
Alvaro, Thanks for the comment. See responses inline with [CB]. Comments are addressed in this diff: https://github.com/cbowers/draft-ietf-mpls-ldp-mrt/commit/38c71cad758ecec6f41caaccdac38abf20e6ef3b Thanks, Chris -----Original Message----- From: Alvaro Retana [mailto:aretana@cisco.com] Sent: Wednesday, September 13, 2017 1:49 PM To: The IESG <iesg@ietf.org> Cc: draft-ietf-mpls-ldp-mrt@ietf.org; tsaad@cisco.com; mpls-chairs@ietf.org; loa@pi.nu; mpls@ietf.org Subject: Alvaro Retana's No Objection on draft-ietf-mpls-ldp-mrt-06: (with COMMENT) Alvaro Retana has entered the following ballot position for draft-ietf-mpls-ldp-mrt-06: No Objection When responding, please keep the subject line intact and reply to all email addresses included in the To and CC lines. (Feel free to cut this introductory paragraph, however.) Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html for more information about IESG DISCUSS and COMMENT positions. The document, along with other ballot positions, can be found here: https://datatracker.ietf.org/doc/draft-ietf-mpls-ldp-mrt/ ---------------------------------------------------------------------- COMMENT: ---------------------------------------------------------------------- (1) I think that Section 4.4. (Interaction of MRT-related LDP advertisements with the MRT topology and computations) would benefit from a reference to rfc5443 (LDP IGP Synchronization). ===== [CB] Good point. I added the following text to section 4.4. [RFC5443] "LDP IGP Synchronization" addresses the issue of the LDP topology not matching the IGP topology by the advertising the maximum IGP cost on links where LDP is not fully operational. This makes the IGP topology match the LDP topology. As described in Section 7.3.1 of [RFC7812], MRT is designed to be compatible with the LDP IGP synchronization mechanism. When the IGP advertises the maximum cost on a link where LDP is not fully operational, the link is excluded from MRT Island formation, which prevents the MRT algorithm from creating any paths using that link. ===== (2) From Section 5: "The associated LSPs must be created before a failure occurs..." Should that be a Normative MUST? I rewrote the sentence as follows to avoid ambiguity. In order to provide protection paths which are immediately usable by the point of local repair in the event of a failure, the associated LSPs need to be created before a failure occurs.
- [mpls] Alvaro Retana's No Objection on draft-ietf… Alvaro Retana
- Re: [mpls] Alvaro Retana's No Objection on draft-… Chris Bowers
- Re: [mpls] Alvaro Retana's No Objection on draft-… Alvaro Retana