Re: [dhcwg] [Technical Errata Reported] RFC8415 (6269)

"Bernie Volz (volz)" <volz@cisco.com> Thu, 03 September 2020 15:24 UTC

Return-Path: <volz@cisco.com>
X-Original-To: dhcwg@ietfa.amsl.com
Delivered-To: dhcwg@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 6D7683A0F3A for <dhcwg@ietfa.amsl.com>; Thu, 3 Sep 2020 08:24:22 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -9.6
X-Spam-Level:
X-Spam-Status: No, score=-9.6 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HTML_MESSAGE=0.001, RCVD_IN_MSPIKE_H2=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com header.b=cxD2iTiT; dkim=pass (1024-bit key) header.d=cisco.onmicrosoft.com header.b=n3VR4CtP
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 FBF_8Y7UhSlC for <dhcwg@ietfa.amsl.com>; Thu, 3 Sep 2020 08:24:18 -0700 (PDT)
Received: from alln-iport-6.cisco.com (alln-iport-6.cisco.com [173.37.142.93]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 375103A0F1A for <dhcwg@ietf.org>; Thu, 3 Sep 2020 08:24:18 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=10536; q=dns/txt; s=iport; t=1599146658; x=1600356258; h=from:to:cc:subject:date:message-id:references: in-reply-to:mime-version; bh=H1cD/qksx2adH1qNX74lggonEeXsvOW4QR/8R2v/iUs=; b=cxD2iTiTz5r3kjekXiPq2NQJyUyVPwYWOXCQL4WCbMYrHMFnckE+Qh4K RIIdCW6pU4EVbgNFqoLtEAxrocy13fekHlJPDvN6Jjz4NXzSdLg8FQnnU vTPoI6kPoztx40Ot+Y5aG0VnAFAClsTKsF3zKFOrEnIB9OJuxOqRgEnnp 4=;
IronPort-PHdr: 9a23:Y02GyRzQFQyllhPXCy+N+z0EezQntrPoPwUc9psgjfdUf7+++4j5ZRWDt/twg0LEG47c7qEMh+nXtvXmXmoNqdaEvWsZeZNBHxkClY0NngMmDcLEbC+zLPPjYyEgWsgXUlhj8iK1LEdIFYD1YFiB6nG35CQZTxP4Mwc9L+/pG4nU2sKw0e36+5DabwhSwjSnZrYnJxStpgKXvc4T0oY=
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: A0AMCAAjClFf/5BdJa1fHQEBAQEJARIBBQUBggqBIy9RB3BYLywKhC6DRgONeYoLiXiEboJTA1ULAQEBDAEBLQIEAQGESwIXghQCJDgTAgMBAQsBAQUBAQECAQYEbYVcDIVyAQEBAQMSEQoTAQE3AQ8CAQgOAwQBASgDAgICHxEUCQgCBA4FCBqDBYF+TQMuAaZhAoE5iGF2gTKDAQEBBYVDDQuCEAmBOIJxg2eGUBuCAIERQ4JNPoEEgRaCCxo0gmEzgi2SXgE8hmqcGFEKgmWVLoUloFagBpIiAgQCBAUCDgEBBYFrI4FXcBWDJFAXAg2OH4NxilZ0NwIGAQkBAQMJfI8KAYEQAQE
X-IronPort-AV: E=Sophos;i="5.76,387,1592870400"; d="scan'208,217";a="569427582"
Received: from rcdn-core-8.cisco.com ([173.37.93.144]) by alln-iport-6.cisco.com with ESMTP/TLS/DHE-RSA-SEED-SHA; 03 Sep 2020 15:24:17 +0000
Received: from XCH-RCD-001.cisco.com (xch-rcd-001.cisco.com [173.37.102.11]) by rcdn-core-8.cisco.com (8.15.2/8.15.2) with ESMTPS id 083FOHaX028770 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=FAIL); Thu, 3 Sep 2020 15:24:17 GMT
Received: from xhs-rcd-002.cisco.com (173.37.227.247) by XCH-RCD-001.cisco.com (173.37.102.11) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 3 Sep 2020 10:24:16 -0500
Received: from xhs-rcd-002.cisco.com (173.37.227.247) by xhs-rcd-002.cisco.com (173.37.227.247) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 3 Sep 2020 10:24:16 -0500
Received: from NAM12-BN8-obe.outbound.protection.outlook.com (72.163.14.9) by xhs-rcd-002.cisco.com (173.37.227.247) with Microsoft SMTP Server (TLS) id 15.0.1497.2 via Frontend Transport; Thu, 3 Sep 2020 10:24:16 -0500
ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=DZylpzdmaG433rRTcxjNgXswgHwE0P/78rAUJV0KgFG9hQxJbEfSjtqBf7mBqKkVfzuhXqzlxItSy+DKcwI3o5pXz8210ZWz3xk/IHEbUcNkJuLip7o3xk1noDD8NUrefOXaOYqcqeeSRiQGD2QLh/xSthBWpOTlFV7OkaYF6/Hk7MO4Euf3RqOT6aYSvEXGWtoo/kbiVThsd3gzaP6gcqOooHaf4b/kPbLAHq4IJiLMQbG9HbLuEmuPi+UYYNQ72NeT82Aw0ueCNCPr2lqqaPkK4HNGBnvQu+b3hIi/p6vAoBvwHVQJz6Mcjq3eDrbFYyWKKHwQJl17GLTkx55XIA==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=H1cD/qksx2adH1qNX74lggonEeXsvOW4QR/8R2v/iUs=; b=cmwMd/dXUtla5edIFBQsDe506GSq7kMw+JfoTYkAUd1JtUDfxhbK8vZpREh68IApyCMXQD1OOIyJNCmklaxfjD+ijN32nOjL3dkKyj7QqBb7zB/J92vwa5ZohG6DxValOr6WEjdw8KANvRBfOOHia++zd0X3WlUUjDnEmb1W+zL9E1maYlnxYh+KX8hTons5fpmve49rEqlNg4QVAICwsIyg90akSsLOvZ4zbRwR+kGv09zHo5FvmVFZsKa4Mu8Dl18TvsbNBv/7ZZrw2ThsBvz0gnzfaV30mAwUSAZrlfd6qWabB68sJ2MdvN916+EQB33LRvWGayF86hfR4G53pQ==
ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=cisco.com; dmarc=pass action=none header.from=cisco.com; dkim=pass header.d=cisco.com; arc=none
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cisco.onmicrosoft.com; s=selector2-cisco-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=H1cD/qksx2adH1qNX74lggonEeXsvOW4QR/8R2v/iUs=; b=n3VR4CtPf/3qMBQV1Eu7wIVEaQi3rNRIGE98weDKXUkF35/OYAIRqOYI24nQeFCOLzT8QzgAt0Bk4TUnxKTiHwJ/rwgabWR0m3ac3cRl7Hpt89c14YtItnrDD1mEJDX7lMnXIPwax/rbSPx9btFfp/tLYGzEnTc5TDPSohikvrI=
Received: from BN7PR11MB2547.namprd11.prod.outlook.com (2603:10b6:406:af::18) by BN6PR11MB0004.namprd11.prod.outlook.com (2603:10b6:405:68::29) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3326.25; Thu, 3 Sep 2020 15:24:14 +0000
Received: from BN7PR11MB2547.namprd11.prod.outlook.com ([fe80::4ced:474b:c85e:9533]) by BN7PR11MB2547.namprd11.prod.outlook.com ([fe80::4ced:474b:c85e:9533%7]) with mapi id 15.20.3326.025; Thu, 3 Sep 2020 15:24:14 +0000
From: "Bernie Volz (volz)" <volz@cisco.com>
To: Ted Lemon <mellon@fugue.com>
CC: "tomasz.mrugalski@gmail.com" <tomasz.mrugalski@gmail.com>, "msiodelski@gmail.com" <msiodelski@gmail.com>, "Andrew Yourtchenko (ayourtch)" <ayourtch@cisco.com>, "mcr+ietf@sandelman.ca" <mcr+ietf@sandelman.ca>, "jiangsheng@huawei.com" <jiangsheng@huawei.com>, "ek.ietf@gmail.com" <ek.ietf@gmail.com>, "Eric Vyncke (evyncke)" <evyncke@cisco.com>, "tim@qacafe.com" <tim@qacafe.com>, "fhamme@united-internet.de" <fhamme@united-internet.de>, "dhcwg@ietf.org" <dhcwg@ietf.org>
Thread-Topic: [Technical Errata Reported] RFC8415 (6269)
Thread-Index: AQHWfuTDwe7g55U7ukqqeAg+7mAHd6lSRS5QgAAzNACABJAv0IAABMEAgAAAfBA=
Date: Thu, 03 Sep 2020 15:24:13 +0000
Message-ID: <BN7PR11MB2547770FEDCEB3A47057FB7CCF2C0@BN7PR11MB2547.namprd11.prod.outlook.com>
References: <20200830154615.6CECEF4076B@rfc-editor.org> <BN7PR11MB2547CB85EBCF595FEE42A340CF510@BN7PR11MB2547.namprd11.prod.outlook.com> <6C4649AD-EB18-47E6-A5EA-440910977A26@fugue.com> <BN7PR11MB254709039DF02A88173AA96CCF2C0@BN7PR11MB2547.namprd11.prod.outlook.com> <AF158680-0083-463B-9C52-141B17B5613C@fugue.com>
In-Reply-To: <AF158680-0083-463B-9C52-141B17B5613C@fugue.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
authentication-results: fugue.com; dkim=none (message not signed) header.d=none;fugue.com; dmarc=none action=none header.from=cisco.com;
x-originating-ip: [24.233.121.124]
x-ms-publictraffictype: Email
x-ms-office365-filtering-correlation-id: 3479c328-aad1-4019-5e6b-08d8501d6a4d
x-ms-traffictypediagnostic: BN6PR11MB0004:
x-ms-exchange-transport-forked: True
x-microsoft-antispam-prvs: <BN6PR11MB000495B4BF7D0000FB44E95BCF2C0@BN6PR11MB0004.namprd11.prod.outlook.com>
x-ms-oob-tlc-oobclassifiers: OLM:7219;
x-ms-exchange-senderadcheck: 1
x-microsoft-antispam: BCL:0;
x-microsoft-antispam-message-info: ebXaLE4/MUJpkYPiTbYfatWBkOqkyKS9L2lJgGES+67sK0MWJPYGrG+Uu7llC05wmm6KV8ToTZPxN6sf2hgqP5ERG4CDS9HqYqlXlXSZ4rGktAJ0qpOERmO/t+gulQPPnCjG21wF7GydJeaUl93oE6FN+I9TrJPSM83uCOlRDowfRq9EQNb3W19zdZLejNazCr1O/Ok5jxnPzcy9Lhptlkcu/qe5yzVl4ycckdp62gGdyvMNZB+UMJp1N9TfKBUdKopjDduS/YiP6yQvPHZjX3a0tTcuMWrjVXV2CikBBI5K4N3NwjlzMNaRgzjUmNx+V7EqspxEij1dMtddIsIn6Q==
x-forefront-antispam-report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:BN7PR11MB2547.namprd11.prod.outlook.com; PTR:; CAT:NONE; SFS:(396003)(376002)(136003)(346002)(366004)(39860400002)(478600001)(6506007)(5660300002)(6916009)(4326008)(7696005)(66556008)(64756008)(76116006)(66946007)(186003)(66574015)(26005)(66476007)(33656002)(53546011)(52536014)(316002)(55016002)(2906002)(54906003)(9686003)(71200400001)(66446008)(83380400001)(8936002)(86362001)(8676002); DIR:OUT; SFP:1101;
x-ms-exchange-antispam-messagedata: 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
Content-Type: multipart/alternative; boundary="_000_BN7PR11MB2547770FEDCEB3A47057FB7CCF2C0BN7PR11MB2547namp_"
MIME-Version: 1.0
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: BN7PR11MB2547.namprd11.prod.outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 3479c328-aad1-4019-5e6b-08d8501d6a4d
X-MS-Exchange-CrossTenant-originalarrivaltime: 03 Sep 2020 15:24:13.9684 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 5ae1af62-9505-4097-a69a-c1553ef7840e
X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
X-MS-Exchange-CrossTenant-userprincipalname: W2kEaPnrhbzK9rlbaEHWes6zWP6jUHWaZ8K+QJGr8zd2EB3+dUkmrK4tQ+odY5Ce
X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN6PR11MB0004
X-OriginatorOrg: cisco.com
X-Outbound-SMTP-Client: 173.37.102.11, xch-rcd-001.cisco.com
X-Outbound-Node: rcdn-core-8.cisco.com
Archived-At: <https://mailarchive.ietf.org/arch/msg/dhcwg/FLfxACJwRtMrvvI9UI_iyKUDfzE>
X-Mailman-Approved-At: Thu, 03 Sep 2020 08:25:50 -0700
Subject: Re: [dhcwg] [Technical Errata Reported] RFC8415 (6269)
X-BeenThere: dhcwg@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: <dhcwg.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/dhcwg>, <mailto:dhcwg-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/dhcwg/>
List-Post: <mailto:dhcwg@ietf.org>
List-Help: <mailto:dhcwg-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/dhcwg>, <mailto:dhcwg-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 03 Sep 2020 15:24:28 -0000

That’s my guess as well.

Perhaps Tim W has some data as to whether it is used or not (and whether it is even tested).

If it isn’t used / implemented, may also be difficult to confirm interop.

Anyway, perhaps something to consider as part of the “full” Standard work to see if we need a post-8415.


  *   Bernie

From: Ted Lemon <mellon@fugue.com>
Sent: Thursday, September 3, 2020 11:19 AM
To: Bernie Volz (volz) <volz@cisco.com>
Cc: tomasz.mrugalski@gmail.com; msiodelski@gmail.com; Andrew Yourtchenko (ayourtch) <ayourtch@cisco.com>; mcr+ietf@sandelman.ca; jiangsheng@huawei.com; ek.ietf@gmail.com; Eric Vyncke (evyncke) <evyncke@cisco.com>; tim@qacafe.com; fhamme@united-internet.de; dhcwg@ietf.org
Subject: Re: [Technical Errata Reported] RFC8415 (6269)

On Sep 3, 2020, at 11:11 AM, Bernie Volz (volz) <volz@cisco.com<mailto:volz@cisco.com>> wrote:
I really wonder how large an issue this is and how frequently Server Unicast is even used. Perhaps in retrospect, a feature we might have considered removing.

I’d be surprised if it’s used—it’s a knob you’d have to configure that doesn’t make things work better. IIRC we put it in because not everybody agreed that just requiring multicast always was a good move.