Re: [mpls] [Technical Errata Reported] RFC3107 (4499)
Eric C Rosen <erosen@juniper.net> Fri, 16 October 2015 20:16 UTC
Return-Path: <erosen@juniper.net>
X-Original-To: mpls@ietfa.amsl.com
Delivered-To: mpls@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id CEC1D1A002F for <mpls@ietfa.amsl.com>; Fri, 16 Oct 2015 13:16:33 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.902
X-Spam-Level:
X-Spam-Status: No, score=-1.902 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001] autolearn=ham
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 iOWD5LWfkAeu for <mpls@ietfa.amsl.com>; Fri, 16 Oct 2015 13:16:31 -0700 (PDT)
Received: from na01-by2-obe.outbound.protection.outlook.com (mail-by2on0117.outbound.protection.outlook.com [207.46.100.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 4E4611A002D for <mpls@ietf.org>; Fri, 16 Oct 2015 13:16:31 -0700 (PDT)
Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=erosen@juniper.net;
Received: from [172.29.36.57] (66.129.241.14) by DM2PR0501MB1102.namprd05.prod.outlook.com (10.160.245.12) with Microsoft SMTP Server (TLS) id 15.1.300.14; Fri, 16 Oct 2015 20:16:26 +0000
To: RFC Errata System <rfc-editor@rfc-editor.org>, akatlas@gmail.com, db3546@att.com, aretana@cisco.com, loa@pi.nu, swallow@cisco.com, rcallon@juniper.net
References: <20151013220529.01C13188CF0@rfc-editor.org>
From: Eric C Rosen <erosen@juniper.net>
Message-ID: <56215B13.4080901@juniper.net>
Date: Fri, 16 Oct 2015 16:16:19 -0400
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0
MIME-Version: 1.0
In-Reply-To: <20151013220529.01C13188CF0@rfc-editor.org>
Content-Type: text/plain; charset="windows-1252"; format="flowed"
Content-Transfer-Encoding: 7bit
X-Originating-IP: [66.129.241.14]
X-ClientProxiedBy: CY1PR21CA0068.namprd21.prod.outlook.com (25.163.250.164) To DM2PR0501MB1102.namprd05.prod.outlook.com (25.160.245.12)
X-Microsoft-Exchange-Diagnostics: 1; DM2PR0501MB1102; 2:87TxC9m/G2Webt27s90R25+JGK1bJIibIuVhRQp8DNUqAmshqdNE68jqXeP2hKevLiFl8oBwbM0+Ps2PPZ7EdM0cxhhTkipNR4AreJQgjD3zpD5TF7JzIFJVpwmYCA/Y+FxS7DyI5HRZ87tbiBUZ2q8Oo9CJyGYUcaVdU5FwFRc=; 3:sVBQ2p7I7UKCd54XTcXvwLiq1vaWhIj9PD64LeVeYN7zl11ue8k3FFlFMTe2Vv8lQRET4uSNUQLGUlTXiqOzB7yQFginxglF7xcB7wOalM4zSgXKuzNRsgQcTCTsKGYiK/U+eXO81TW6UQdfhvVfIQ==; 25:RB4kZP9Hf9cseiQTyC/G7ylbefviJuLKztcucBrRR25Y9bd5Ja9QPlxLS9IbYL9KkMPsF/X6KfIBkpgydCvP/aTJnx4zmn5Cs55jZlj0WSmjflH6XP1GiYLfwE7n3dTZS7WPe9r/3z52mAt8P91UaDvx02kIrmaP2x2EyZLU+wotJFbXsbYdthZfVAukBFVRZtRfklwlMCH0wPns/CeoXe60knAr3C77jrdgtClNiss0gmDgm781R47hk/XZRUPaxe6ip2+Hm4+iI5ZnuANdaA==
X-Microsoft-Antispam: UriScan:;BCL:0;PCL:0;RULEID:;SRVR:DM2PR0501MB1102;
X-Microsoft-Exchange-Diagnostics: 1; DM2PR0501MB1102; 20: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; 4:4ctMO9HDoHvG0UqtyRhByoP8f//vJpf1vBa5F76z/XSQOiP50m7zys6K1S1GPfuYAJC1R04e2BkrtROgQ7e5iBVQoymDvkYY8E+I2Z6yszhFV7vVZfAOa1clEVfdqyBuTuB1ZrVJn98zdc42R8WdzztD25RS42QvT6ouYTTnj0d4BoNKEY7R0fL69tua0rXKm6dR9EtKLKN71AaTV7Y7HB+vj8ZMZnZgnri8AGVAwQLutllSWCCkhltab3l71Aj//Y0P9TGYQxEl+3rhl1nH0RK4o7deed5XEhwRx/9+ngh/+LbMTP13LYTXdbKTmV8L4RiaJp/4s4vPqU1/OZsMgc0TDQA9FZV4GhlAl8XfRzI=
X-Microsoft-Antispam-PRVS: <DM2PR0501MB1102A4C94219C7F82017784ED43D0@DM2PR0501MB1102.namprd05.prod.outlook.com>
X-Exchange-Antispam-Report-Test: UriScan:(202767206196957);
X-Exchange-Antispam-Report-CFA-Test: BCL:0; PCL:0; RULEID:(601004)(2401047)(5005006)(520078)(8121501046)(3002001); SRVR:DM2PR0501MB1102; BCL:0; PCL:0; RULEID:; SRVR:DM2PR0501MB1102;
X-Forefront-PRVS: 0731AA2DE6
X-Forefront-Antispam-Report: SFV:NSPM; SFS:(10019020)(6009001)(6049001)(189002)(24454002)(479174004)(377454003)(199003)(122386002)(2950100001)(83506001)(189998001)(59896002)(40100003)(87976001)(77096005)(106356001)(105586002)(50466002)(65956001)(66066001)(5004730100002)(47776003)(64706001)(5007970100001)(65806001)(42186005)(46102003)(5001960100002)(4001450100002)(33656002)(5008740100001)(99136001)(101416001)(15975445007)(76176999)(50986999)(87266999)(54356999)(23746002)(65816999)(16799955002)(92566002)(2201001)(15188155005)(36756003)(1941001)(97736004)(5001920100001)(5001770100001)(19580395003)(80316001)(19580405001)(64126003)(86362001)(4001350100001)(81156007); DIR:OUT; SFP:1102; SCL:1; SRVR:DM2PR0501MB1102; H:[172.29.36.57]; 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)
X-Microsoft-Exchange-Diagnostics: 1; DM2PR0501MB1102; 23:BZ4Hhw6C069uyMVl8YykrTzWRn3P0XDaFIJ3zqk/R3p8mjUNSMqwjvzl/kOQleBiEOgZ2Nzqy/D+sD5e5z8m3PRjuyS5Wqbt3G2ENgUk/jHMQeZnipG6IvPky5wFG6RDunRDgDAgw2izxJtbLHtnicl6J6+iCqV7+1hCoLiAJn4fhHbbyk7tcb3+ad7uyNlQGTOmMmFXkFzNPHt1EXGM/DQ1LR9RuQNnfLObk93FJEaPtqWe9AJV7jieW6ezKsRcl9CEeQ8F+vpO2l2Y0KP1YnwIoHs8+Zd9LX8TCijnQXtt++PK103NVIlxXsRAUbWQO47pBOM8V6gDJmWZXDW7//10z4r2Fov6Te+LCUprepMTBK9tWQc9a58ZB3waE6b7yciJI9EhLdoguq0eRYgqyZMphEIIxFeU3pxNvv4AMgTJ3HAtlTLkM1ObXkmYtXMOmRcZvV9V9FMPUy4+VtBH5kAmeRv0ewIVzHH0G/W8NLZXwxPSP+DzR8v9Vk6srXNKpujo8D4Cumr3cETaeQY/Yhjr6LLz3n16MUsCW6OWU6+UxsPZYJUl3yNZx7+BJdI8vvMsNaypzPU6+Rm+8ljJzX7elgb0r7tpDVRUyHPHwjNRbr1+Zp400SrfkjcFnbqWcc0nBjJwrFcm6J+qAf5IMjfYvpM7drJlDYoD0xJZTNBcmz6Knj3BzJohRfHM5AcF7njwdxLXbY/hBUvWfsn7ZxwQhEjzoJ36D2FxI9oSEVszLOI2b7B380H+jvRJrFL1BeiQs8orykGPx0Oy54rub0SvMBd0Taw7PfaE2avoLI/2szk+OH1YUgjuwHiGVCaijJYk8CNNPunCqjEwkazF6hQElP/Wr8+5uunmjKrxZSCNF1iv1ZceeyqRQGKnZE+xTIZ1Ay8ZGSJAjeCChjkJSL06j8rs5uXFoa7mGSc1XzmlLaoDd+eazzS8V2/KXoxN2uVtyoBm+wA+yuEa+xsq6MzCfQvYw9l2SgWyEx7jdT+JHqH+zaqYUz/E7kticFQvTWcoh6kWOFXBwy3jj7+VRDKsJOKeYAFsPZR3CSyVqLXcwUBowXY0GZtDbcpmm+QCIpgZx4ca1Eevs6mcmOufrg2MsHBE4XL2k9/a8S/mcQKrMYaM8XN0zBbDxnj1vD3kac0D49Fii8UXGpU8/IagbvYsAB3jkxrEDAnmsXz25ywcpr8gTqPD19VPRwSLjHPj71fy9du03bomWIy1yDaTnvaDn5so2AZLvGilOqIHuD2Ic9/NZZ9CfNC9QaflEg/N7PmuK1sxtyJ45Rvp8G8qjiicguKYCH8jr6bvfe2WGt33UmBf/O7wwijZLIXMPdX6YMvTFaE4Nu3fYvYEfeSwLMvlkQPZfHIg3a+iXW8GdgNPBVN/z3ylimKdUWLLhwS32tDSzoe3vImn1ESFmdNJtGZ2p1vEJgfUMJ6weIxo9QOPfNpoWhLMtkAvkI3D3yNWsOltHuLZbbrssMXtCrCT6w==
X-Microsoft-Exchange-Diagnostics: 1; DM2PR0501MB1102; 5:gOO9gqh+RGfmEvYmvM2vkxPulYkK2BGdTYs5FRLHhb79fl0csuNkkxPvWlxVQIHbxS0MtXoHfvrFKkeRCiH+CdfxJjiO6iLik+YpavSNI9crgQL2AYu+LICA1VJqIxM0K7cfImdg213W1xBd/Bu+ZQ==; 24:XHjN3c36EDuDseEvRZho8ZHDRJyG/e45vhZ05/3O0V1V13oA8z2hMlkskaISlwwBpcExS9o/FX7niZPDwx/36wyvTV5siAuJqJYFWkVbqKE=; 20:3e7rilbT+PBv5vTK9TiujEBB3DpSV4P0eE0bGCWe9auwuIxhSDJ6qE29WEutp5luhY1kRpwNQnSNCuGJK7d4Rw==
X-OriginatorOrg: juniper.net
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Oct 2015 20:16:26.5584 (UTC)
X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted
X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM2PR0501MB1102
Archived-At: <http://mailarchive.ietf.org/arch/msg/mpls/dROCbYniEj-FEh89NAe82wXZtU4>
Cc: alexander.okonnikov@gmail.com, mpls@ietf.org
Subject: Re: [mpls] [Technical Errata Reported] RFC3107 (4499)
X-BeenThere: mpls@ietf.org
X-Mailman-Version: 2.1.15
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: Fri, 16 Oct 2015 20:16:34 -0000
Nice bit of detective work figuring out where the 0x800000 value came from. However, I don't think the erratum can be accepted, given its potential for causing interoperability issues. To the best of my knowledge, section 4 ("Advertising Multiple Routes to a Destination") is not widely implemented (to say the least), so the issue of "which route to the prefix did you intend to withdraw?" doesn't really come up. On 10/13/2015 6:05 PM, RFC Errata System wrote: > The following errata report has been submitted for RFC3107, > "Carrying Label Information in BGP-4". > > -------------------------------------- > You may review the report below and at: > http://www.rfc-editor.org/errata_search.php?rfc=3107&eid=4499 > > -------------------------------------- > Type: Technical > Reported by: Alexander Okonnikov <alexander.okonnikov@gmail.com> > > Section: 3 > > Original Text > ------------- > A BGP speaker can withdraw a previously advertised route (as well as > the binding between this route and a label) by either (a) advertising > a new route (and a label) with the same NLRI as the previously > advertised route, or (b) listing the NLRI of the previously > advertised route in the Withdrawn Routes field of an Update message. > The label information carried (as part of NLRI) in the Withdrawn > Routes field should be set to 0x800000. (Of course, terminating the > BGP session also withdraws all the previously advertised routes.) > > > Corrected Text > -------------- > A BGP speaker can withdraw a previously advertised route (as well as > the binding between this route and a label) by either (a) advertising > a new route (and a label) with the same NLRI as the previously > advertised route, or (b) listing the NLRI of the previously > advertised route in the Withdrawn Routes field of > an MR_UNREACH_NLRI attribute of an Update message. > The label information carried (as part of NLRI) in the Withdrawn > Routes field should be set to 0x000001. (Of course, terminating the > BGP session also withdraws all the previously advertised routes.) > > > Notes > ----- > 1. Labeled routes are withdrawn by virtue of MR_UNREACH_NLRI attribute. > 2. Label value should be set to 0x00000 with BoS=1. Value 0x800000 was carried from draft, where BoS was high-order bit. > > Instructions: > ------------- > This erratum is currently posted as "Reported". If necessary, please > use "Reply All" to discuss whether it should be verified or > rejected. When a decision is reached, the verifying party (IESG) > can log in to change the status and edit the report, if necessary. > > -------------------------------------- > RFC3107 (draft-ietf-mpls-bgp4-mpls-04) > -------------------------------------- > Title : Carrying Label Information in BGP-4 > Publication Date : May 2001 > Author(s) : Y. Rekhter, E. Rosen > Category : PROPOSED STANDARD > Source : Multiprotocol Label Switching > Area : Routing > Stream : IETF > Verifying Party : IESG > > _______________________________________________ > mpls mailing list > mpls@ietf.org > https://www.ietf.org/mailman/listinfo/mpls >
- [mpls] [Errata Rejected] RFC3107 (4499) RFC Errata System
- [mpls] [Technical Errata Reported] RFC3107 (4499) RFC Errata System
- Re: [mpls] [Technical Errata Reported] RFC3107 (4… Eric C Rosen
- Re: [mpls] [Technical Errata Reported] RFC3107 (4… Alexander Okonnikov
- Re: [mpls] [Technical Errata Reported] RFC3107 (4… Eric C Rosen