Re: [Isis-wg] WG Last Call for draft-ietf-isis-reverse-metric-07

"t.petch" <ietfc@btconnect.com> Fri, 29 December 2017 11:06 UTC

Return-Path: <ietfc@btconnect.com>
X-Original-To: isis-wg@ietfa.amsl.com
Delivered-To: isis-wg@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 6927512D850; Fri, 29 Dec 2017 03:06:23 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.921
X-Spam-Level:
X-Spam-Status: No, score=-1.921 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-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=btconnect.onmicrosoft.com
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 1yvOWTXxf26b; Fri, 29 Dec 2017 03:06:21 -0800 (PST)
Received: from EUR03-DB5-obe.outbound.protection.outlook.com (mail-eopbgr40126.outbound.protection.outlook.com [40.107.4.126]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id DFB1712D84F; Fri, 29 Dec 2017 03:06:20 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=btconnect.onmicrosoft.com; s=selector1-btconnect-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=uih4MKXKMc0XfZRrbWEK3tVjN5S1kwK1IksJPTrP1Gk=; b=XxexrMzvFWyEYGv6onH0frf6tGdM0oBF8Uu7TdIVNkgsUsa8540BX4WRMJufDMwJ1DDW2HEb+Ake/XIJVfgDMsdqGJhFpSWhf24cpXy2zEJvn37ciJjjUkG5mEfcsUqqU9KdbuIKg1u+dXr7SwKMw/V/Wla69aYjzP22kqk8UBQ=
Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=ietfc@btconnect.com;
Received: from pc6 (86.169.153.236) by HE1PR0701MB3003.eurprd07.prod.outlook.com (2603:10a6:3:4d::9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256) id 15.20.366.3; Fri, 29 Dec 2017 11:06:17 +0000
Message-ID: <007601d38094$72d122a0$4001a8c0@gateway.2wire.net>
From: "t.petch" <ietfc@btconnect.com>
To: "Naiming Shen \(naiming\)" <naiming@cisco.com>
Cc: <isis-wg@ietf.org>, "Christian Hopps" <chopps@chopps.org>, <isis-ads@ietf.org>
References: <87375fp3hv.fsf@chopps.org> <7185dbc2d3f34b9ea844ddef95b6278c@XCH-ALN-008.cisco.com> <481C1CEE-A8B4-4034-B016-D2673296E96B@cisco.com> <700e8fed-40fc-cb1a-1ae3-f8401f167aae@gmail.com> <DDC43BA0-7D70-4D7E-B023-A5C04E8B1B88@cisco.com>
Date: Fri, 29 Dec 2017 10:53:33 -0000
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 7bit
X-Priority: 3
X-MSMail-Priority: Normal
X-Mailer: Microsoft Outlook Express 6.00.2800.1106
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106
X-Originating-IP: [86.169.153.236]
X-ClientProxiedBy: HE1PR05CA0165.eurprd05.prod.outlook.com (2603:10a6:3:f8::13) To HE1PR0701MB3003.eurprd07.prod.outlook.com (2603:10a6:3:4d::9)
X-MS-PublicTrafficType: Email
X-MS-Office365-Filtering-Correlation-Id: 86989d2a-b776-41c5-6875-08d54eac2f3d
X-Microsoft-Antispam: UriScan:; BCL:0; PCL:0; RULEID:(4534020)(4602075)(4627115)(8989060)(201703031133081)(201702281549075)(8990040)(5600026)(4604075)(2017052603307); SRVR:HE1PR0701MB3003;
X-Microsoft-Exchange-Diagnostics: 1; HE1PR0701MB3003; 3:GQ2x31vLvXR4jEJI5wJu5ovQFj2RXj4zZsxJhUALXWTnEzTeRU3qEHZReAIXqdyG3bYIXAkPsjhKN+Rck0L55cptjYEXv3eML4zLR91fIocbZ7o07QIc0uLkYfkgXVxXqKFdisFewJgPJFJ4UOI4IxLGiVSLBUYufT1OX4c++Udc5RYYAqtCYdLgB/AyUIn2dtfdGNeMRu+JwEwGva8T/pBKiPPnsLDNuhw+y1qP/uOymNciwycexVsgYbl0Ob0+; 25:gKJO4CzsjimnaLBaso8f7YwHYcEfjgim72TBvFqPATuxcbLwXVDEwiRCUODPw7Gg4sD6AQ54FFFt5Y8MxB85BREPPfhwoltnHsGgcLg6PcrfX48DBouCOcyO99HaddqcazP/nC6lHXVuBXP5Z4aGWuhZgSHagPQz34HFJZeBNnp89Wq3KEsAhFg4Z4bk8eJEBcUcGVYl9kpvZEsILDz+vZdKqb/nBHPJKYlrz3pR06mLP58xV0YDNfhaunGb3SKK5tH/k0Lg6lO1Mr5s95p7HveEcUXesVu+67X9x9jhsvVwP19aEPSiLDCnmusPvSDIoMAstZFvBaOcNc2z9Ps305hJryj/kTeVDdg57WzRVoc=; 31:uoO1BIM+S2AKlVU5640U05nvsMQav36dLcHKX/l92oJIucr8joHFl4OH9W2lIncUmphoaBPm0323eYr6hKXNSZvRrQkMUVVf70GSyuLI0vwPAUdhFaQmbXF7qB6YR5wqSfbsYoYl7WgAiVH4H18xNM8lgP6y3sUjQJB6WGaU1AHHPywstsxvOUZG06Zkc3ZK20pvOUbg5Y8nCAdTviq2cMvyokwNf6aL132MVn0vAj8=
X-MS-TrafficTypeDiagnostic: HE1PR0701MB3003:
X-Microsoft-Antispam-PRVS: <HE1PR0701MB300361EA3124DA2DD23E0D34A0050@HE1PR0701MB3003.eurprd07.prod.outlook.com>
X-Exchange-Antispam-Report-Test: UriScan:(95692535739014);
X-Exchange-Antispam-Report-CFA-Test: BCL:0; PCL:0; RULEID:(61425038)(6040470)(2401047)(5005006)(8121501046)(93006095)(93001095)(3002001)(10201501046)(3231023)(944501075)(6055026)(61426038)(61427038)(6041268)(20161123560045)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(20161123564045)(20161123562045)(20161123558120)(6072148)(201708071742011); SRVR:HE1PR0701MB3003; BCL:0; PCL:0; RULEID:(100000803101)(100110400095); SRVR:HE1PR0701MB3003;
X-Microsoft-Exchange-Diagnostics: 1; HE1PR0701MB3003; 4:hH6GlovF4kSM1AO2b0rivWil1v+Aw+Ar1EVDyfbikHlqPdG9sBf4AyH4Yeit+F9U1dxuFGw5TrVxsrLbr4erXkE6cDtDvR5usKUK+Jigx4mAsL9qSuntEmzDWqhCdEUto9njZrY6leb3S/CrBbZpP7AnemeBqNZjSMzCYQxoZddDujM/GVugsrVS8B1V5ok8y6dVGUItDI+c2A+bgNCHE/u/U1Sobxga399OxuFVEF0Kl814+15srbpJB444L2QahGjb7eKRCgB1ixQkQzvmlssfljSEkS1mIG9PqtpSnPXiY6k++szcs4KbGJRIhEsK
X-Forefront-PRVS: 0536638EAC
X-Forefront-Antispam-Report: SFV:NSPM; SFS:(10019020)(39380400002)(346002)(39860400002)(396003)(376002)(366004)(199004)(189003)(13464003)(316002)(97736004)(6666003)(6916009)(50226002)(52116002)(6496006)(106356001)(2486003)(86362001)(230783001)(23676004)(4720700003)(25786009)(116806002)(50466002)(478600001)(3846002)(230700001)(14496001)(6116002)(1556002)(4326008)(105586002)(76176011)(1456003)(81816011)(93886005)(68736007)(62236002)(44716002)(33896004)(2906002)(6486002)(386003)(61296003)(44736005)(84392002)(81686011)(47776003)(6246003)(66066001)(59450400001)(229853002)(81156014)(8676002)(54906003)(81166006)(5660300001)(305945005)(8936002)(16526018)(53936002)(9686003)(7736002)(74416001)(7726001); DIR:OUT; SFP:1102; SCL:1; SRVR:HE1PR0701MB3003; H:pc6; FPR:; SPF:None; PTR:InfoNoRecords; A:0; MX:1; LANG:en;
Received-SPF: None (protection.outlook.com: btconnect.com does not designate permitted sender hosts)
X-Microsoft-Exchange-Diagnostics: =?utf-8?B?MTtIRTFQUjA3MDFNQjMwMDM7MjM6bGE4TU9ORUpwUUxSSzdIOWtNRWhVaVBi?= =?utf-8?B?Z2tYWDh5cGFOUmg0K1c2cHBrcEVkQTlBNlVuVk04TlFRRkllMTE3N0t0L0Rk?= =?utf-8?B?NWg2VUdITnZJU2FjNFdKcTFPSjJBUHoyem5pRXdlLzllSFNjQllSWmF0NTZ5?= =?utf-8?B?NUhFRHo5LzBtWUVLMXVyVEFwQTFPRFdpbHRqQmdMSGYyc3VCVWQzRTVlZGhS?= =?utf-8?B?VHV3NzAvYmJOYTFxQ1o1WC81am15OWxQZXhpYXNkcFRmR3hBRFlsTEkwRGhq?= =?utf-8?B?d1RONWFiNTZDVkkvV2VEdmlUdzVUN1pmWUVrSGNRRmt0L2FFZFU4T1VvZVRJ?= =?utf-8?B?N0xrL01LS3l2QjRiVHlxdmdOVmVkMGJXZis0S2xIRmxPanZvNG9VZ3RRSmo4?= =?utf-8?B?ZGdXd3g4ajBoVGQ0SzIrbU96bjVxaEpQWkszWkkvdjNESUt0V09vMDhrOWs5?= =?utf-8?B?Z1kzMmx6bzBTQlRUbi9LczVUREZyLzNVbi93TEtVN05RdTBMTXpHalFXSTZG?= =?utf-8?B?cDlVN2Mzb0Y1WkZieVBOWXZJMDErK2RnWXh2N3lGUklHU0kvMjZXRmlHY2Zy?= =?utf-8?B?OE9PS0o3dVJ1aU5iZHR2Zm9rVWFUb2l3M3FJQ0FnSnUzUzRxaUMwVGI5QU1D?= =?utf-8?B?NzN0WkJqZHVlY1pMVHNzemNsU2tGZS9GRHoyTFhtai9zUGM5Q1FWbFp4RU1u?= =?utf-8?B?UE9EdlloNTVFajZqM0NXZGFEdDFIcTllN1ZsYXVVVk5idGNOaElyYzZXcVgr?= =?utf-8?B?djFnR1NsVCtqeExBdndRbmNqWXJLY3djUFRWRDNqLzdHU0Z0K0tkVER3TUZQ?= =?utf-8?B?RkFlRElKNWZMaVZPeVZKL3pjK2tiZTlRcnlicVd0VXZyS2ltM1ZCc2NJbnlQ?= =?utf-8?B?UG81b3BzY2JOOHVSN25VM1kvVkE1L1VGT1dhejFCcWRSakFCeTZKSVppTjRY?= =?utf-8?B?L0lYMlFxSFJUQldlQUxvV0xCdlFHRWhENXQyNlUrNmhONVZqckJaY3Z1Y2NT?= =?utf-8?B?YkFKUUhQSzJRYTV4aWlKRVJrQkRNL2JaK0tMME1JOEpQTGhTTU5lQXlodTZ4?= =?utf-8?B?TjI2SytFcTgxSXZ1Tm4xVENHWExJbDA5QldaZnAyRE1ObFVQN2VScUp5RWlK?= =?utf-8?B?ckc3VU9aV1dJa3BnbUVQNW9SZ0lzYVNFTEhBRjFPbkVRSjNWVHRHR2Z3aGJP?= =?utf-8?B?RG9UMkJEMFFQWUQvSjBVYXphQWtoeERLWjJuWGt4LzJnK2RvdFFnWjVSdVI1?= =?utf-8?B?M2NNcXE1QW5DZFllRGJJWmlUVVJ0R1NmenE1amcxL0FmK3dIeVNjbldpWksv?= =?utf-8?B?TnBYQUUyYWUrWHBUc0o2MTlpVnpoQjgzVUJUWG0waHlDTjlBczNlL0JaN2xR?= =?utf-8?B?ZWZkUmJnT1NvWXNEK2RaYUxVeDhHMVJpREg3bjUzWG1uMmhxTTFUOWlTakFF?= =?utf-8?B?dEpEQmZPSVhiMHZldGtKSWhWQW9uK1ptdXBEYjVsbzdnclZpRytzeHZtbm1L?= =?utf-8?B?dXc2SVArdWIvNURHU09ET05DOEg2WVVHYkhmbi9ZdENFTEU2UHlOekUzR2lp?= =?utf-8?B?RWhHTEp3Q3o3NVMxekJLSHpnbFYzTHVlenZWMnNvU2dDdmNoaFZwUlVna3VQ?= =?utf-8?B?QWd5MHpPTUxTc25JME9idEI0NXJlc1F2UXNjbWZOdkY0SUwrZG1rV1FWbHRV?= =?utf-8?B?OTVEdlNXei9PUlprd3ZqUUtuTlRyVnRab2FkTlFEUndCNGNieWJzUThOTU9P?= =?utf-8?B?emQwcW8vNFJTSVdPclMrZk1mOUx0NjNneTVrb2FIeEhhVnJXeXIxeTcyNUpS?= =?utf-8?B?VE1LMTkwazRFVndYeEczL2l0WE9MT2Z0eTY4L3ArNFZYSGpKTXlmSWhuV0M2?= =?utf-8?B?bjFWSmNCc1VSYlJSL3hUYmFqWEx3TUorcEVyMHJ5UC8rRW9LTmVINnN5dEs0?= =?utf-8?B?UHAvbk10WGxnbWlQNjhvaDdTcVlyVVBuK3kvOGtQaEhYTWg2Z25pMUh2dTE1?= =?utf-8?B?czdZUGp3aHNLbnRqdmVScWZ2bzlmZGhGRjROSXFBPT0=?=
X-Microsoft-Exchange-Diagnostics: 1; HE1PR0701MB3003; 6:tXd3AzQahMFaMcW1nqBeR2FGYr2/z0A/pShpXhwYw3sHM4DyItpXOVEXSWQxV2QsDLfI56kxKaYN1gJyluo9gVTbHFv7hrvjiGIxunM5j5aCfACZlqe7BmPXUYM9hPW2cmutDvpgKM7BljxyG2RZlJch86ndKsMLMiKG/yR2hJGlQeLvawPdIqRfGA30oYap4PYx4WHtMYllOyMUyDqwKCJavoMWiCIIVRUjA8HAqiONEpDOyZIzaC3bIyziiVzQz1xXZQ0BI/OXpaOr4rdpBM1qsk8Z8BGUANDsHvp3fQX5W+/AO6Gjgf5HlouaFv3Hr0nc18XYwyYlum5f7QW/CAIB7hpwwEAoM77KFprUhQI=; 5:SCzaA03ich4F8vyqJUxE65E/ZkcXYE+JLrLgeTeA61W6boF5aJ0QOrv9L9IZC4j2aDEaB90AzyDFPH5Eu7dUs13gIm6WkVeeGLTfr7UiclZc0qhdG/1nZqyeYtCV7uIpTBE26lGGRIHsWjKntwxAEqEqh5kJyROWEzzz2zdomSg=; 24:+//rC+TIeYnNkuE+crN9JLrUwuHEyQY6ZmOOuYpgqTG4bvf66BmLhVHSps0MwG/tC+n7pW3OrbXt57y9WpktWLNPZX9x2Ox2nB1a/AQ5fuE=; 7:MErAqzY8aRG/b6rHt+2Us92soF8zTF0exeoTIwqskBMrtvHTA0lyk5gxWmISohqAK6zgQoGpV1ZtplrMOVGKH1F7KTiZYdcfrOO4AbDlAU2lnFEkdbylgNjgM5RVjz0r4sFUMb118j+Z4HTUULg+h77y3Ghek6+K4Fok2UoqC8a6mxO8r0ijQ5xHw+iI7yaaJscVCVWHuYvFYlCVPOZOPD0Ow7corbAbMisegJ2qR9kfizYywgNI5mWOlzT7l2YW
SpamDiagnosticOutput: 1:99
SpamDiagnosticMetadata: NSPM
X-OriginatorOrg: btconnect.com
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 Dec 2017 11:06:17.0438 (UTC)
X-MS-Exchange-CrossTenant-Network-Message-Id: 86989d2a-b776-41c5-6875-08d54eac2f3d
X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted
X-MS-Exchange-CrossTenant-Id: cf8853ed-96e5-465b-9185-806bfe185e30
X-MS-Exchange-Transport-CrossTenantHeadersStamped: HE1PR0701MB3003
Archived-At: <https://mailarchive.ietf.org/arch/msg/isis-wg/nPFjYPOedMYSfaollaScQE13JoA>
Subject: Re: [Isis-wg] WG Last Call for draft-ietf-isis-reverse-metric-07
X-BeenThere: isis-wg@ietf.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: IETF IS-IS working group <isis-wg.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/isis-wg>, <mailto:isis-wg-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/isis-wg/>
List-Post: <mailto:isis-wg@ietf.org>
List-Help: <mailto:isis-wg-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/isis-wg>, <mailto:isis-wg-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 29 Dec 2017 11:06:23 -0000

A couple of IANA thoughts on this I-D;

"This document requests that IANA allocate from the IS-IS TLV
   Codepoints Registry a new TLV, "

- Is there a particular range that this value should come from?

- A note in s.2 asking that TBD be replaced by the value that IANA
allocates might be useful for the RFC Editor.

- Are the flag bits of this new TLV going to form a new registry?

- And a non-IANA thought - what does a receiver do if it receives more
than one such TLV?

"This document also request that IANA allocate from the link-attribute
   bit value for sub-TLV 19 of TLV 22."
 I struggled to parse this initially.

Perhaps
"This document also requests that IANA allocate a bit from the
'link-attribute bit values for sub-TLV 19 of TLV 22' registry.

(That registry title is a bit of a mouthful compounded by the lack of
Capitals in the title:-(

The coupling between the request to IANA to allocate the bit and the
actual definition in the body of the I-D is ... well, non-existent.  You
should have a something about the octet with a TBD2 (not a second TBD)
in section 3.6, a TBD2 in the IANA actions and a request that this be
replaced by RFC Editor by the value that IANA allocates.

Yes, a reader can deduce all this but the lack of precision is how
mistakes are made IMO.  RFC5209 has the sort of detail that I would
expect.

Tom Petch

----- Original Message -----
From: "Naiming Shen (naiming)" <naiming@cisco.com>