From nobody Sat Aug 1 00:18:07 2020 Return-Path: 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 62E843A0A64; Sat, 1 Aug 2020 00:18:05 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.898 X-Spam-Level: X-Spam-Status: No, score=-1.898 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, NICE_REPLY_A=-0.001, SPF_HELO_NONE=0.001, SPF_NONE=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 LDbArUdzBGpO; Sat, 1 Aug 2020 00:18:03 -0700 (PDT) Received: from pipi.pi.nu (pipi.pi.nu [83.168.239.141]) (using TLSv1.1 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 69B423A0A63; Sat, 1 Aug 2020 00:18:03 -0700 (PDT) Received: from [192.168.1.19] (unknown [122.2.101.80]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: loa@pi.nu) by pipi.pi.nu (Postfix) with ESMTPSA id 2BF23326D38; Sat, 1 Aug 2020 09:17:59 +0200 (CEST) To: "Acee Lindem (acee)" , "mpls@ietf.org" Cc: "mpls-chairs@ietf.org" , Deborah Brungard References: <4769F2D4-C3E9-4196-BAAB-AB2B64DA0C1F@cisco.com> From: Loa Andersson Message-ID: <61c4dd7c-cc1f-6cc2-238b-308f0aa96ced@pi.nu> Date: Sat, 1 Aug 2020 15:17:56 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <4769F2D4-C3E9-4196-BAAB-AB2B64DA0C1F@cisco.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Archived-At: Subject: Re: [mpls] "A YANG Data Model for MPLS Base" - draft-ietf-mpls-base-yang-14 X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 01 Aug 2020 07:18:06 -0000 Acee, Thanks, this was useful! And it was I asked for :)! However, I was wrong on one point - draft-ietf-mpls-base-yang does not have any further dependenies, all normative references are RFCs. It is mpls-ldp-yang that has a dependency, draft-ietf-rtgwg-policy-model which in turn dependes on draft-ietf-netmod-intf-ext-yang. Both these document seems to be moving according to plan. /Loa On 31/07/2020 21:39, Acee Lindem (acee) wrote: > Hi, > > Loa asked that I document the chain of dependencies of documents already > on the RFC Queue that are dependent on the subject draft. It is that > draft-ietf-bfd-yang > is dependent on > this document. Drafts already on the RFC Queue that are dependent on > draft-ietf-bfd-yang are draft-ietf-isis-yang-isis-cfg > , > draft-ietf-ospf-yang > , and > draft-ietf-pim-yang > . There are > others that haven’t yet reached the RFC Queue including > draft-ietf-idr-bgp-model > . Hence, can > we give this draft some prioritization?? I know I’ve requested this at > prior IETF and hopefully I won’t have to do it again in November. > > I also looked at the -14 and it doesn’t appear to have any dependencies > on other models or documents that have not yet completed. > > Thanks, > Acee > -- Loa Andersson email: loa@pi.nu Senior MPLS Expert loa.pi.nu@gmail.com Bronze Dragon Consulting phone: +46 739 81 21 64 From nobody Sun Aug 2 01:07:41 2020 Return-Path: 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 764E73A0AE9 for ; Sun, 2 Aug 2020 01:07:39 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.946 X-Spam-Level: X-Spam-Status: No, score=-0.946 tagged_above=-999 required=5 tests=[NICE_REPLY_A=-0.949, SPF_HELO_NONE=0.001, SPF_NONE=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 hVEJPe_20r0k for ; Sun, 2 Aug 2020 01:07:37 -0700 (PDT) Received: from pipi.pi.nu (pipi.pi.nu [83.168.239.141]) (using TLSv1.1 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 3AD463A0AE7 for ; Sun, 2 Aug 2020 01:07:36 -0700 (PDT) Received: from [192.168.1.19] (unknown [122.2.101.80]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: loa@pi.nu) by pipi.pi.nu (Postfix) with ESMTPSA id 661FD326DEA; Sun, 2 Aug 2020 10:07:33 +0200 (CEST) To: Thomas.Graf@swisscom.com, mpls@ietf.org References: <1811130370.3403178.1595923899529@ss007565> From: Loa Andersson Message-ID: <000862e2-a9c4-e6c9-5580-29fa06a9769e@pi.nu> Date: Sun, 2 Aug 2020 16:07:12 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <1811130370.3403178.1595923899529@ss007565> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Archived-At: Subject: Re: [mpls] draft-tgraf-ipfix-mpls-sr-label-type X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 02 Aug 2020 08:07:39 -0000 Thomas, I have a question on the IANA section of this document. For every new code point, e.g.: This document specifies three additional code points for IS-IS, OSPv2 and OSPFv3 Segment Routing extension in the existing sub-registry "IPFIX MPLS label type (Value 46)" of the "IPFIX Information Elements" and one new "IPFIX Information Element" with a new sub- registry in the "IP Flow Information Export (IPFIX) Entities" name space. ---------------------------------------------- | Value| Description | Reference | |--------------------------------------------| | TBD1 | OSPFv2 Segment Routing | RFC8665 | |--------------------------------------------| | TBD2 | OSPFv3 Segment Routing | RFC8666 | |--------------------------------------------| | TBD3 | IS-IS Segment Routing | RFC8667 | ---------------------------------------------- Figure 1: Updates to "IPFIX Information Element #46" SubRegistry you put in a reference to old documents that does not define these code points. Shouldn't the reference say "this document"? I think this is true for almost all references you have put into the IANA section. For the new sub-registry: ----------------------------------------- | Value | Description | Reference | |---------------------------------------| | TBD5 | Unknown SID Type | RFC8402 | |---------------------------------------| | TBD6 | Prefix-SID | RFC8402 | |---------------------------------------| | TBD7 | Node-SID | RFC8402 | |---------------------------------------| | TBD8 | Anycast-SID | RFC8402 | |---------------------------------------| | TBD9 | Adjacency-SID | RFC8402 | |---------------------------------------| | TBD10 | LAN-Adjacency-SID | RFC8402 | |---------------------------------------| | TBD11 | PeerNode-SID | RFC8402 | |---------------------------------------| | TBD12 | PeerAdj-SID | RFC8402 | |---------------------------------------| | TBD13 | PeerSet-SID | RFC8402 | |---------------------------------------| | TBD14 | Binding-SID | RFC8402 | ----------------------------------------- Figure 3: New "IPFIX Information Element #TBD4" SubRegistry You will have to define Registration Procedues! /Loa On 28/07/2020 16:11, Thomas.Graf@swisscom.com wrote: > Dear mpls, > > I presented the following draft > > Export of MPLS Segment Routing Label Type Information in IP Flow > Information Export (IPFIX) > > https://tools.ietf.org/html/draft-tgraf-ipfix-mpls-sr-label-type-04 > > at the spring working group at IETF 108 yesterday > > https://www.ietf.org/proceedings/108/slides/slides-108-spring-ip-flow-information-export-ipfix-00.pdf > > and today at OPSAWG where I call for adoption. > > This draft adds additional segment routing code points for in the IANA > IPFIX registry for IS-IS, OPSFv2 and OPSF v3 and segment routing SID > types to gain further insights into the MPLS-SR forwarding-plane. > > I have been asked to not only gather feedback from spring and opsawg but > also from lsr and mpls working groups since these code points are > related to link state routing protocols and mpls data plane. > > I am looking forward to your feedback and input. > > Best Wishes > > Thomas Graf > > > _______________________________________________ > mpls mailing list > mpls@ietf.org > https://www.ietf.org/mailman/listinfo/mpls > -- Loa Andersson email: loa@pi.nu Senior MPLS Expert loa.pi.nu@gmail.com Bronze Dragon Consulting phone: +46 739 81 21 64 From nobody Mon Aug 3 06:55:32 2020 Return-Path: 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 EE9CC3A0A9C; 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Mon, 03 Aug 2020 06:55:27 -0700 (PDT) Received: from DM5PR1901MB2150.namprd19.prod.outlook.com ([2603:1036:4:9e::5]) by smtp.gmail.com with ESMTPSA id w1sm19602483qkj.90.2020.08.03.06.55.26 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 03 Aug 2020 06:55:27 -0700 (PDT) From: Tarek Saad To: mpls CC: "mpls-chairs@ietf.org" Thread-Topic: IETF 108 MPLS WG Meeting Minutes Thread-Index: AQHWaZ283W7Ooc0un0GI5c+1jFkIWA== X-MS-Exchange-MessageSentRepresentingType: 1 Date: Mon, 3 Aug 2020 13:55:25 +0000 Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-Exchange-Organization-SCL: -1 X-MS-TNEF-Correlator: X-MS-Exchange-Organization-RecordReviewCfmType: 0 Content-Type: multipart/alternative; boundary="_000_DM5PR1901MB21501F4AB1BE5EEC097EC7AEFC4D0DM5PR1901MB2150_" MIME-Version: 1.0 Archived-At: Subject: [mpls] IETF 108 MPLS WG Meeting Minutes X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 03 Aug 2020 13:55:31 -0000 --_000_DM5PR1901MB21501F4AB1BE5EEC097EC7AEFC4D0DM5PR1901MB2150_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable The recorded minutes for the MPLS WG session during IETF 108 are now upload= ed at: https://codimd.ietf.org/s/notes-ietf-108-mpls or https://www.ietf.org/proceedings/108/minutes/minutes-108-mpls-01 Please let us know if there are any changes required. Thanks to Mach/others who helped taking in the notes. Regards, Tarek (for MPLS WG chairs) --_000_DM5PR1901MB21501F4AB1BE5EEC097EC7AEFC4D0DM5PR1901MB2150_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

The recorded minutes for the MPLS WG session during = IETF 108 are now uploaded at:

https://codimd.ietf.org/s/notes-ietf-108-mpls

or

https://www.ietf.org/proceedings/108/minutes/minut= es-108-mpls-01

Please let us know if there are any changes required= .

Thanks to Mach/others who helped taking in the notes= .

 

Regards,

Tarek (for MPLS WG chairs)

 

 

 

 

--_000_DM5PR1901MB21501F4AB1BE5EEC097EC7AEFC4D0DM5PR1901MB2150_-- From nobody Mon Aug 3 12:28:01 2020 Return-Path: X-Original-To: mpls@ietf.org Delivered-To: mpls@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 141153A1091; Mon, 3 Aug 2020 12:28:00 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Ron Bonica via Datatracker To: Cc: mpls@ietf.org, last-call@ietf.org, draft-ietf-mpls-base-yang.all@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 7.12.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <159648288003.3043.17899151373543753172@ietfa.amsl.com> Reply-To: Ron Bonica Date: Mon, 03 Aug 2020 12:28:00 -0700 Archived-At: Subject: [mpls] Rtgdir last call review of draft-ietf-mpls-base-yang-14 X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 03 Aug 2020 19:28:00 -0000 Reviewer: Ron Bonica Review result: Ready This document is well-written. Modulo YANG doctor comments, I think that it is ready to go. From nobody Mon Aug 3 13:34:09 2020 Return-Path: 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 52F4B3A0FD9; Mon, 3 Aug 2020 13:34:07 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.197 X-Spam-Level: X-Spam-Status: No, score=-0.197 tagged_above=-999 required=5 tests=[DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.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 XAXs-P1BCokW; Mon, 3 Aug 2020 13:34:06 -0700 (PDT) Received: from mail-lj1-x234.google.com (mail-lj1-x234.google.com [IPv6:2a00:1450:4864:20::234]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id BC4443A0F97; Mon, 3 Aug 2020 13:34:05 -0700 (PDT) Received: by mail-lj1-x234.google.com with SMTP id h19so41113155ljg.13; Mon, 03 Aug 2020 13:34:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=v37zL/a/2fp365oU3gx721kVIn10vqlB2B9NIruobpA=; b=OExR35i8zC4EPHhhR9zcAMA0uAhHC3SNrx59kKZ/CjFTgy+Ox5PGiMjgHoEIMc/RZ5 ih6QMnvnkNvBJom9qdD5S8cR4URmzBW3sPB3PyE0Jy/6ZrtvEZ47uGX1vcxPtU9cS8Oy MZp0ZW8n61VjU7aAwix1Xyj+ObRE5nhKjxxwXFYZqHdZTGSsqGhSpgrABvmtxPNgrAPN 7qjwB4+8/5vTSTWXiGYNEJw8Ryu+OplmOibylpCzWED+aldWH5EN9VFQ3NnX+kDP7n4p JKbWcChkUgkJEMjsrMTw/5v0yuCcmGX1UwGgpnKdgPE8it3WhcFo08cajtLGGmtsUxl6 Kysw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=v37zL/a/2fp365oU3gx721kVIn10vqlB2B9NIruobpA=; b=b7H0jTHnoBJhpY/0qz/WWnEB7d/9NrP9cVigvR5Py2SDPDjxYHp0QvXeGFyRgLLBFs rR89n6gHKhRuP+BvIhtJBcyQW4/H9llG0WlZqfr/mS/1BgQi5HHQKzI8KzYY9MmM9P+g GdH+y+MLHn6JoksQn3de/BFAdcY5WsahcWtm/1DeUx9dC0z9TP4at9iZtRkCa3m9nL7Q gdl8aDD8ZXCvQdYURWFevmR++kZuB6bf5tZ91c4G8JACiXUUyI1J2ZYJgLV1I4jyDxSs qxtBvx9ED3dCJO+zDAJQjCG7uu5RT+kh7LVdft3zL3XKWNsISr6j8FXMRZ2Q3syOL3G8 +qVQ== X-Gm-Message-State: AOAM531eYQIsNfNlbbysxoSamTWU7U+z5m/WIBuc5tgLCMecMb9OSRKE 6AsWvKcjEbbQo6xYGtCBnu5s8Bj7cI39fzkLJB4= X-Google-Smtp-Source: ABdhPJwYbmr7ry1CK3DIqtmUK3rFVTCMS78zj6Nx0/vFcTDWlfxEs3E3AmquJY3QntCaSsZIlPJ3f4Lad+PyTqT0tws= X-Received: by 2002:a2e:752:: with SMTP id i18mr9125644ljd.428.1596486843843; Mon, 03 Aug 2020 13:34:03 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Greg Mirsky Date: Mon, 3 Aug 2020 13:33:53 -0700 Message-ID: To: Tarek Saad Cc: mpls , "mpls-chairs@ietf.org" Content-Type: multipart/alternative; boundary="00000000000037476605abff0f49" Archived-At: Subject: Re: [mpls] IETF 108 MPLS WG Meeting Minutes X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 03 Aug 2020 20:34:07 -0000 --00000000000037476605abff0f49 Content-Type: text/plain; charset="UTF-8" Hi Tarek, Mach, et al., thank you for the great notes that accurately reflect all discussions. I've noticed several nits that may be fixed: OLD TEXT: Kireeti promises to work on the revison in coming week. NEW TEXT: Kireeti promises to work on the revision in the coming week. s/remainded/remained/ s/Donald volunteer/Donald volunteered/ s/indidcator lable/indicator label/ Regards, Greg On Mon, Aug 3, 2020 at 6:55 AM Tarek Saad wrote: > The recorded minutes for the MPLS WG session during IETF 108 are now > uploaded at: > > https://codimd.ietf.org/s/notes-ietf-108-mpls > > or > > https://www.ietf.org/proceedings/108/minutes/minutes-108-mpls-01 > > Please let us know if there are any changes required.. > > Thanks to Mach/others who helped taking in the notes.. > > > > Regards, > > Tarek (for MPLS WG chairs) > > > > > > > > > _______________________________________________ > mpls mailing list > mpls@ietf.org > https://www.ietf.org/mailman/listinfo/mpls > --00000000000037476605abff0f49 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hi Tarek, Mach, et al.,
thank you for the great notes = that accurately reflect all discussions. I've noticed several nits that= may be fixed:
OLD TEXT:
Kireeti promises to work on th= e revison in coming week.
NEW TEXT:
Kireeti promise= s to work on the revision in the coming week.

= s/remainded/remained/
s/Donald volunteer/Donald volunteered/
s/indidcator lable/indicator label/

Regards,=
Greg


On Mon, Aug 3, 2020 at 6:55 AM Tarek Sa= ad <tsaad.net@gmail.com> w= rote:

The recorded minutes for the MPLS WG session during = IETF 108 are now uploaded at:

https://codimd.ietf.org/s/notes-ietf-108-mpls

or

https://www.ietf.org/proceedings= /108/minutes/minutes-108-mpls-01

Please let us know if there are any changes required= ..

Thanks to Mach/others who helped taking in the notes= ..

=C2=A0

Regards,

Tarek (for MPLS WG chairs)

=C2=A0

=C2=A0

=C2=A0

=C2=A0

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--00000000000037476605abff0f49-- From nobody Tue Aug 4 01:03:31 2020 Return-Path: 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 8FCF93A0FAD; Tue, 4 Aug 2020 01:03:29 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 0 X-Spam-Level: X-Spam-Status: No, score=0 tagged_above=-999 required=5 tests=[HTML_MESSAGE=0.001, RCVD_IN_MSPIKE_H2=-0.001, 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 oLXvk384dVdy; Tue, 4 Aug 2020 01:03:28 -0700 (PDT) Received: from huawei.com (lhrrgout.huawei.com [185.176.76.210]) (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 0CB223A0FAC; Tue, 4 Aug 2020 01:03:28 -0700 (PDT) Received: from lhreml702-chm.china.huawei.com (unknown [172.18.7.107]) by Forcepoint Email with ESMTP id A796440B55678091F8FA; Tue, 4 Aug 2020 09:03:26 +0100 (IST) Received: from lhreml707-chm.china.huawei.com (10.201.108.56) by lhreml702-chm.china.huawei.com (10.201.108.51) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1913.5; Tue, 4 Aug 2020 09:03:26 +0100 Received: from DGGEML423-HUB.china.huawei.com (10.1.199.40) by lhreml707-chm.china.huawei.com (10.201.108.56) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA_P256) id 15.1.1913.5 via Frontend Transport; Tue, 4 Aug 2020 09:03:25 +0100 Received: from DGGEML510-MBS.china.huawei.com ([169.254.3.246]) by dggeml423-hub.china.huawei.com ([10.1.199.40]) with mapi id 14.03.0487.000; Tue, 4 Aug 2020 16:03:20 +0800 From: Mach Chen To: Greg Mirsky , Tarek Saad CC: mpls , "mpls-chairs@ietf.org" Thread-Topic: [mpls] IETF 108 MPLS WG Meeting Minutes 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Irc35Dsm2kap; Tue, 4 Aug 2020 04:01:53 -0700 (PDT) Received: from pipi.pi.nu (pipi.pi.nu [83.168.239.141]) (using TLSv1.1 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 6D11A3A040F; Tue, 4 Aug 2020 04:01:52 -0700 (PDT) Received: from [192.168.1.19] (unknown [122.2.101.80]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: loa@pi.nu) by pipi.pi.nu (Postfix) with ESMTPSA id 50B42326FCC; Tue, 4 Aug 2020 13:01:49 +0200 (CEST) To: Greg Mirsky , Tarek Saad Cc: mpls , "mpls-chairs@ietf.org" References: From: Loa Andersson Message-ID: <2d36833a-777d-4ca3-8222-c097e28f6f09@pi.nu> Date: Tue, 4 Aug 2020 19:01:43 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Archived-At: Subject: Re: [mpls] IETF 108 MPLS WG Meeting Minutes X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 04 Aug 2020 11:01:55 -0000 Folks, inline please. On 04/08/2020 04:33, Greg Mirsky wrote: > Hi Tarek, Mach, et al., > thank you for the great notes that accurately reflect all discussions. > I've noticed several nits that may be fixed: > OLD TEXT: > Kireeti promises to work on the revison in coming week. > NEW TEXT: > Kireeti promises to work on the revision in the coming week. > > s/remainded/remained/ the remaining technical issues ? I hate to try to improive Emnglish, but find myself doing it trom time to time, I think this flows better. /Loa > s/Donald volunteer/Donald volunteered/ > s/indidcator lable/indicator label/ > > Regards, > Greg > > > On Mon, Aug 3, 2020 at 6:55 AM Tarek Saad > wrote: > > The recorded minutes for the MPLS WG session during IETF 108 are now > uploaded at:____ > > https://codimd.ietf.org/s/notes-ietf-108-mpls____ > > or____ > > https://www.ietf.org/proceedings/108/minutes/minutes-108-mpls-01____ > > Please let us know if there are any changes required...____ > > Thanks to Mach/others who helped taking in the notes...____ > > __ __ > > Regards,____ > > Tarek (for MPLS WG chairs)____ > > __ __ > > __ __ > > __ __ > > __ __ > > _______________________________________________ > mpls mailing list > mpls@ietf.org > https://www.ietf.org/mailman/listinfo/mpls > > > _______________________________________________ > mpls mailing list > mpls@ietf.org > https://www.ietf.org/mailman/listinfo/mpls > -- Loa Andersson email: loa@pi.nu Senior MPLS Expert loa.pi.nu@gmail.com Bronze Dragon Consulting phone: +46 739 81 21 64 From nobody Tue Aug 4 10:24:18 2020 Return-Path: X-Original-To: mpls@ietf.org Delivered-To: mpls@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 65EC83A0D8C; Tue, 4 Aug 2020 10:24:17 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: mpls@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 7.12.0 Auto-Submitted: auto-generated Precedence: bulk Reply-To: mpls@ietf.org Message-ID: <159656185734.26680.16794021666355353855@ietfa.amsl.com> Date: Tue, 04 Aug 2020 10:24:17 -0700 Archived-At: Subject: [mpls] I-D Action: draft-ietf-mpls-bfd-directed-15.txt X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 04 Aug 2020 17:24:17 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Multiprotocol Label Switching WG of the IETF. Title : Bidirectional Forwarding Detection (BFD) Directed Return Path for MPLS Label Switched Paths (LSPs) Authors : Greg Mirsky Jeff Tantsura Ilya Varlashkin Mach(Guoyi) Chen Filename : draft-ietf-mpls-bfd-directed-15.txt Pages : 9 Date : 2020-08-04 Abstract: Bidirectional Forwarding Detection (BFD) is expected to be able to monitor a wide variety of encapsulations of paths between systems. When a BFD session monitors an explicitly routed unidirectional path there may be a need to direct egress BFD peer to use a specific path for the reverse direction of the BFD session. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-mpls-bfd-directed/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-mpls-bfd-directed-15 https://datatracker.ietf.org/doc/html/draft-ietf-mpls-bfd-directed-15 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-mpls-bfd-directed-15 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Tue Aug 4 15:39:40 2020 Return-Path: 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 B89D23A11B3; Tue, 4 Aug 2020 15:39:34 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.097 X-Spam-Level: X-Spam-Status: No, score=-2.097 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, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.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 HMYyjv0W8hQ9; Tue, 4 Aug 2020 15:39:31 -0700 (PDT) Received: from mail-lj1-x22f.google.com (mail-lj1-x22f.google.com [IPv6:2a00:1450:4864:20::22f]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 34FD43A11AF; Tue, 4 Aug 2020 15:39:31 -0700 (PDT) Received: by mail-lj1-x22f.google.com with SMTP id w14so15595780ljj.4; Tue, 04 Aug 2020 15:39:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=tJNXcl6+4zBzMjaFnq7sEPHSSAROYWpB3kTSMFhGs3k=; b=t1llk+BZn+SXHJ9obfPcMblu2K57GeLm0BcQPejGcXgvzC2INHucS5BKQzU1k3xWMB LDWroFx7wDbbYcmgboZpHI+S/vlDCcIpnAvbYLluGSIkC0I8u/yLElXb44heY46kqizR Fu8+m9ClFSOECwHDF+Yz4jNLOfhg9mny01u3iaPbg2moj9y+oS0INQhKd1bsRdXjfcXs 2jvKiuh5eopwPYYSb2QWCMcIM6kIdWUtyocRsptdK/byZ0FZJ+dCzs4W4EbhGRc+jfIL 7W6t5KQkduU14WtqAzDDul3giLnraBIhzVanGVAkfqNUvz5GKCUXxixuboR9+fXhPz2D /Whw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=tJNXcl6+4zBzMjaFnq7sEPHSSAROYWpB3kTSMFhGs3k=; b=Jc+c0crk39ymC+QtpDSxYRw5rwomVeVnjRzLG7N1HOSed0h9T4TWz09nhU0sKwxarc jQ8ltmFPfI0hfFskztQ8LoIeQn0W7WwjpQ06UU4WLaj8mGEJ3jJLKMXrsticXQV8JI3P 261goWBi9U/Gd4C3LjwX9+d5KgrfCSfcCGhPSooZWwEVTGhohWZ/KWrRdjzyNhulMnUn aIMLqphV5ShLU/UPtCwWHSB6/va3neBdqk3wva/QG0amZoQXb2mxt53FhRofzLD9lBL6 lN+6S94Cs3z5ww9OpZ0dcZe8tgiook5+OmwSUJ8m1BGV+oIgpirPCODDE1/DKuHL2wRb 0gGg== X-Gm-Message-State: AOAM5328Fs7lbwLcS0OD7qCiACflyxLY7WvWuu7WpCIOZPQ8Ci8Dgb45 xE4ZkcWWYDgf3+cixOMFm4Qse3Kt7lxuCsLrnrmaxkBS X-Google-Smtp-Source: ABdhPJwGi1vfyPDt4ttKS+mj1o9yhPqQ2t4LBU50vdZU9z1YRMeArnuF5GAA2+LnQ8+glbsy5GCAkV/n/WBHACGsiy8= X-Received: by 2002:a2e:9f43:: with SMTP id v3mr25370ljk.266.1596580768672; Tue, 04 Aug 2020 15:39:28 -0700 (PDT) MIME-Version: 1.0 References: <149978159930.12344.18347332855391607627@ietfa.amsl.com> In-Reply-To: <149978159930.12344.18347332855391607627@ietfa.amsl.com> From: Greg Mirsky Date: Tue, 4 Aug 2020 15:39:16 -0700 Message-ID: To: mpls@ietf.org, MPLS Working Group , rtg-dir@ietf.org, "Carlos Pignataro (cpignata)" Cc: draft-ietf-mpls-bfd-directed@ietf.org Content-Type: multipart/alternative; boundary="0000000000009272e305ac14edaa" Archived-At: Subject: [mpls] Fwd: Rtgdir early review of draft-ietf-mpls-bfd-directed-07 X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 04 Aug 2020 22:39:35 -0000 --0000000000009272e305ac14edaa Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Dear All, as we've discussed at the MPLS WG meeting at IETF-108, I've been given an action point to match updates to the draft-ietf-mpls-bfd-directed with the RtgDir early review comments. Please find notes from the authors in-line under GIM>> and Mach>> tags. Welcome your questions, comments. Regards, Greg (on behalf of the authors) ---------- Forwarded message --------- From: Carlos Pignataro Date: Tue, Jul 11, 2017 at 7:00 AM Subject: Rtgdir early review of draft-ietf-mpls-bfd-directed-07 To: Cc: , , < bfd-chairs@ietf.org> Reviewer: Carlos Pignataro Review result: Has Issues Hello I have been selected to do a routing directorate =E2=80=9Cearly=E2=80=9D re= view of this draft. https://datatracker.ietf.org/doc/draft-ietf-mpls-bfd-directed/ The routing directorate will, on request from the working group chair, perform an =E2=80=9Cearly=E2=80=9D review of a draft before it is submitted for pub= lication to the IESG. The early review can be performed at any time during the draft=E2=80= =99s lifetime as a working group document. The purpose of the early review depends on the stage that the document has reached. The MPLS chairs have requested an early review from the directorate with th= e objective of improving document quality. This document has had three unsuccessful WG LCs. For more information about the Routing Directorate, please see http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir Document: draft-ietf-mpls-bfd-directed-07.txt Reviewer: Carlos Pignataro Review Date: Early July, 2017 Intended Status: Standards Track Summary: I have significant concerns about this document. I also recommend a BFD WG Chair or appointee to review this document. Comments: First, I have a general concern about the architectural approach in this document. This document is modeled after RFC 7110. RFC 7110 describes the specification of a return path for MPLS LSP Ping. MPLS LSP Ping uses a request/reply command/response paradigm, in which receipt of an Echo Request elicits the generation of an Echo Reply. BFD for MPLS, however, uses a different approach and paradigm (as per RFC 5884). An MPLS LSP Ping packet is used as a bootstrap, signaling discriminator value for a persistent BFD session. After the MPLS LSP Ping signals the Discriminator (via MPLS LSP Ping TLV) to use, then BFD control messages are sent back and forth. However, while the BFD session is UP and BFD control messages and being sent back and forth, and while no MPLS LSP Ping packets are sent after bootstrapping -- what happens if the return path changes (e.g., the return LSP goes down, gets unconfigured, etc.)? GIM>> Need to note that after bootstrapping a BFD session over MPLS LSP with the MPLS LSP Ping that includes the BFD Discriminator TLV, MPLS LSP Ping is periodically sent according to Section 3.2 RFC 5884: Hence, BFD is used in conjunction with LSP Ping for MPLS LSP fault detection: ... iii) LSP Ping is used to periodically verify the control plane against the data plane by ensuring that the LSP is mapped to the same FEC, at the egress, as the ingress. [Mach] If the return LSP goes down, then the BFD session should go down as well, this's one of the goals that this solution is trying to achieve. For example, in some case, it want the forward and reverse paths share the same route and fate. The return path down normally means the forward path is down as well. In that case, not only this mechanism can actually make things worst, because it results in a false negative, but also the document does not specify how the system should recover. [Mach] As above, this result is desired in the case that requires the forward and reverse path share route and fate. It should be kept down until the specified return path recovered. The I-D seems to assume complete topological invariability for it to work long-term, since it does not specify any mechanism to update or to deal with such a failure or change scenario. GIM>> We've added the Operational Considerations section that describes how the local BFD system using periodic MPLS LSP Ping can monitor the viability of the Reverse path. Particularly, the text that describes this: If any of defined in [RFC7110] sub-TLVs used in BFD Reverse Path TLV, then the periodic verification of the control plane against the data plane, as recommended in Section 4 [RFC5884], MUST use the Return Path TLV, as per [RFC7110], with that sub-TLV. By using the LSP Ping with Return Path TLV, an operator monitors whether at the egress BFD node the reverse LSP is mapped to the same FEC as the BFD session. Selection and control of the rate of LSP Ping with Return Path TLV follows the recommendation of [RFC5884]: "The rate of generation of these LSP Ping Echo request messages SHOULD be significantly less than the rate of generation of the BFD Control packets. An implementation MAY provide configuration options to control the rate of generation of the periodic LSP Ping Echo request messages." On the other hand, there is already a BFD mechanism without the bootstrapping setup and with a command/response like behavior, that is S-BFD, RFC 7881. That one is notably missing from this draft. GIM>> The goal of the proposed mechanism is not to avoid bootstrapping a BFD over MPLS LSP session or simulate Echo Response/Reply behavior but to control the path the remote BFD system uses to transmit BFD control packets in BFD Asynchronous mode. [Mach] The purpose of this draft is to specify a particular return path, S-BFD cannot specify the return path, thus cannot satisfy the requirement. Further, there seem to be a number of potentially erroneous assumptions made, see below. Additional Comments: Bidirectional Forwarding Detection (BFD) Directed Return Path The title should include that this is *only* for MPLS BFD. GIM>> Thank you for the helpful editorial suggestion. When a BFD session monitors an explicitly routed unidirectional path there may be a need to direct egress BFD peer to use a specific path for the reverse direction of the BFD session. Scope: is this solution targeted only for "explicitly routed unidirectional path", and the solution to have the reply come back the exact reverse direction? That does not seem to be the case and the solution. GIM>> The path from the remote BFD system may traverse the same nodes and links traversed by the BFD control packets transmitted from the ingress LER, i.e., be co-routed. But the proposed mechanism is more generic and allows an operator to control the path traversed by a BFD control packet transmitted by the egress LER. [RFC5880], [RFC5881], and [RFC5883] established the BFD protocol for IP networks. [RFC5884] and [RFC7726] set rules of using BFD asynchronous mode over IP/MPLS LSPs. These standards implicitly assume that the egress BFD peer will use the shortest path route regardless of route being used to send BFD control packets towards it. Is "These standards" referring to the three former or the four latter? GIM>> Two latter two. We've clarified that by the following update: OLD TEXT: [RFC5884] and [RFC7726] set rules of using BFD asynchronous mode over IP/MPLS LSPs. These standards implicitly assume that the egress BFD peer will use the shortest path route regardless of route being used to send BFD control packets towards it. NEW TEXT: [RFC5884] and [RFC7726] set rules for using BFD asynchronous mode over IP/MPLS LSPs, while not defining means to control the path an egress BFD system uses to send BFD control packets towards the ingress BFD system. For the case where a LSP is explicitly routed it is likely that the shortest return path to the ingress BFD peer would not follow the same path as the LSP in the forward direction. The fact that BFD control packets are not guaranteed to follow the same links and nodes in both forward and reverse directions is a significant factor in producing false positive defect notifications, i.e. false alarms, if used by the ingress BFD peer to deduce the state of the forward direction. There may be an implicit mis-assumption in this text and overall approach: the fact that traffic flows on one direction does not imply that the reverse direction using the same interfaces and nodes would actually be consequentl= y properly programmed and working. GIM>> If the objective of controlling the path from the egress to the ingress system is to monitor such path, then detecting a defect in the forwarding path fulfills the objective. This document defines the BFD Reverse Path TLV as an extension to LSP Ping [RFC8029] and proposes that it is to be used to instruct the egress BFD peer to use an explicit path for its BFD control packets associated with a particular BFD session. This text assumes that the BFD return path is MPLS. However, my understanding from RFC 5884 is that this is not necessarily the case, and the return can be IP. GIM>> The document defines an optional mechanism to control the BFD Reverse path. The default behavior, if the BFD Reverse Path TLV is not included in the MPLS LSP Ping with the BFD Discriminator TLV, remains, as you've noted - over IP. When BFD is used to monitor unidirectional explicitly routed path, e.g. MPLS-TE LSP, BFD control packets in forward direction would be in-band using the mechanism defined in [RFC5884] and [RFC5586]. Which BFD uses RFC 5586? RFC5586 says that is not needed: GIM>> We've removed references to RFC 5586. "Some of these functions can be supported using existing tools such as Virtual Circuit Connectivity Verification (VCCV) [RFC5085], Bidirectional Forwarding Detection for MPLS LSPs (BFD- MPLS) [BFD-MPLS], LSP-Ping [RFC4379], or BFD-VCCV [BFD-VCCV]." And then: o a failure detection by ingress node on the reverse path cannot be interpreted as bi-directional failure unambiguously and thus trigger, for example, protection switchover of the forward direction without possibility of being a false positive. To address this scenario the egress BFD peer would be instructed to use a specific path for BFD control packets. But using a specific path for return cannot either imply "interpreted as bi-directional failure unambiguously", so the scenario is not *addressed*. The BFD Reverse Path TLV carries information about the path onto which the egress BFD peer of the BFD session referenced by the BFD Discriminator TLV MUST transmit BFD control packets. The format of the BFD Reverse Path TLV is as presented in Figure 1. What does the remote endpoint do with that "MUST" if the return FEC goes away? GIM>> The Operational Considerations section includes the following text: Suppose an operator planned network maintenance activity that possibly affects FEC used in the BFD Reverse Path TLV. In that case, the operator MUST avoid the unnecessary disruption using the LSP Ping with a new FEC in the BFD Reverse Path TLV. But in some scenarios, proactive measures cannot be taken. Because the frequency of LSP Ping messages will be lower than the defect detection time provided by the BFD session. As a result, a change in the reverse-path FEC will first be detected as the BFD session's failure. In such a case, the ingress BFD node SHOULD immediately transmit the LSP Ping Echo request with Return Path TLV to verify whether the FEC is still valid. If the failure was caused by the change in the FEC used for the reverse direction of the BFD session, the ingress BFD node SHOULD bootstrap a new BFD session using another FEC in BFD Reverse Path TLV. There also seem to be some self-contradiction. This document says: LSP ping, defined in [RFC8029], uses BFD Discriminator TLV [RFC5884] to bootstrap a BFD session over an MPLS LSP. This document defines a new TLV, BFD Reverse Path TLV, that MUST contain a single sub-TLV that can be used to carry information about the reverse path for the BFD session that is specified by value in BFD Discriminator TLV. And then says: Reverse Path field contains a sub-TLV. But then says: None, one or more sub-TLVs MAY be included in the BFD Reverse Path TLV. If none sub-TLVs found in the BFD Reverse Path TLV, the egress BFD peer MUST revert to using the default, i.e., over IP network, reverse path. So is it only one, or none/one/multiple? GIM>> Thank you for pointing this. Below is the update in the working version of the draft: OLD TEXT: This document defines a new TLV, BFD Reverse Path TLV, that MUST contain a single sub-TLV that can be used to carry information about the reverse path for the BFD session that is specified by the value in BFD Discriminator TLV. NEW TEXT: This document defines a new TLV, BFD Reverse Path TLV, that MAY contain none, one or more sub-TLVs that can be used to carry information about the reverse path for the BFD session that is specified by the value in BFD Discriminator TLV. and one more: OLD TEXT: Reverse Path field contains a sub-TLV NEW TEXT: Reverse Path field contains none, one or more sub-TLVs. I believe it needs to be multiple since then a Tunnel can be specified. But the document as-is seems self-contradicting. Further, where has that "default" been defined as "over IP network"? GIM>> The text was re-worked to avoid using "default": If no sub-TLVs are found in the BFD Reverse Path TLV, the egress BFD peer MUST revert to using the local policy based decision as described in Section 7 [RFC5884], i.e., routed over IP network. There's another contradiction here: If the egress LSR cannot find the path specified in the Reverse Path TLV it MUST send Echo Reply with the received Reverse Path TLV and set the Return Code to "Failed to establish the BFD session. The specified reverse path was not found" Section 3.3. The egress BFD peer MAY establish the BFD session over IP network as defined in [RFC5884]. So the response is "Failed to establish the BFD session." But then it MAY establish the session? GIM>> Echo Reply with the error code is to indicate that the reverse path is not available at the egress LSR. The local policy at the egress BFD system may command the transmission of a BFD control packet from egress to the ingress if the Reverse Path is not available. And, again, what if the path is found at bootstrap but lost afterwards? GIM>> Section 5 includes text that provides information on handling such a scenario. 4. Use Case Scenario The fact that A-B-C-D-G-H works does not mean that the reverse, H-G-D-C-B-A= , will work. GIM>> If the objective is to verify that the reverse path works, then detecting a defect fulfills the task. 6. Security Considerations Security considerations discussed in [RFC5880], [RFC5884], [RFC7726], and [RFC8029], apply to this document. There seem to be additional security considerations with returns taking explicit paths, and should be expanded in here. GIM>> That scenario is discussed in the Security Considerations section in RFC 7110. A reference to RFC 7110 was added: Security considerations discussed in [RFC5880], [RFC5884], [RFC7726], [RFC8029], and [RFC7110] apply to this document. Net-net, I do have concerns about this document. I believe it is not ready to advance, and could use more whiteboard time as well as a review by BFD experts. Best, Carlos Pignataro. --0000000000009272e305ac14edaa Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

Dear All,
as we've discussed at the MPLS WG me= eting at IETF-108, I've been given an action point to match updates to = the draft-ietf-mpls-bfd-directed with the RtgDir early review comments. Ple= ase find notes from the authors in-line under GIM>> and Mach>> = tags.
Welcome your questions, comments.

= Regards,
Greg (on behalf of the authors)

---------- Forwarded= message ---------
From: Carlos Pignataro <cpignata@cisco.com>
Date: Tue, Jul 11, 2017 a= t 7:00 AM
Subject: Rtgdir early review of draft-ietf-mpls-bfd-directed-0= 7
To: <rtg-dir@ietf.org><= br>Cc: <mpls@ietf.org>, <draft-ietf-mpls-= bfd-directed.all@ietf.org>, <bfd-chairs@ietf.org>


Reviewer: Carlos Pignataro=
Review result: Has Issues

Hello

I have been selected to do a routing directorate =E2=80=9Cearly=E2=80=9D re= view of this draft.
https://datatracker.ietf.org/doc/draft= -ietf-mpls-bfd-directed/

The routing directorate will, on request from the working group chair, perf= orm
an =E2=80=9Cearly=E2=80=9D review of a draft before it is submitted for pub= lication to the
IESG. The early review can be performed at any time during the draft=E2=80= =99s lifetime
as a working group document. The purpose of the early review depends on the=
stage that the document has reached.

The MPLS chairs have requested an early review from the directorate with th= e
objective of improving document quality.=C2=A0 This document has had three<= br> unsuccessful WG LCs.

For more information about the Routing Directorate, please see
http://trac.tools.ietf.org/area/rtg/trac/wiki/Rt= gDir

Document: draft-ietf-mpls-bfd-directed-07.txt
Reviewer: Carlos Pignataro
Review Date: Early July, 2017
Intended Status: Standards Track

Summary:
I have significant concerns about this document.
I also recommend a BFD WG Chair or appointee to review this document.

Comments:

First, I have a general concern about the architectural approach in this document.

This document is modeled after RFC 7110. RFC 7110 describes the specificati= on
of a return path for MPLS LSP Ping. MPLS LSP Ping uses a request/reply
command/response paradigm, in which receipt of an Echo Request elicits the<= br> generation of an Echo Reply.

BFD for MPLS, however, uses a different approach and paradigm (as per RFC 5884). An MPLS LSP Ping packet is used as a bootstrap, signaling discrimina= tor
value for a persistent BFD session. After the MPLS LSP Ping signals the
Discriminator (via MPLS LSP Ping TLV) to use, then BFD control messages are=
sent back and forth.

However, while the BFD session is UP and=C2=A0 BFD control messages and bei= ng sent
back and forth, and while no MPLS LSP Ping packets are sent after bootstrap= ping
-- what happens if the return path changes (e.g., the return LSP goes down,=
gets unconfigured, etc.)?
GIM>> Need = to note that after bootstrapping a BFD session over MPLS LSP with the MPLS = LSP Ping that includes the BFD Discriminator TLV,
MPLS LSP Ping is periodically sent according to Section 3.2 RFC 5884= :
=C2=A0 =C2=A0Hence, BFD is used in conjun= ction with LSP Ping for MPLS LSP fault
=C2=A0 =C2=A0detection:
...
=C2=A0 =C2=A0 iii) LSP Ping is used to = periodically verify the control plane
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= against the data plane by ensuring that the LSP is mapped to
=C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0the same FEC, at the egress, as the ingress.
<= div class=3D"gmail_quote">[Mach] If the return LSP goes down, then the BFD = session should go down as well, this's one of the goals that this solut= ion is trying to achieve. For example, in some case, it want the forward an= d reverse paths share the same route and fate.=C2=A0 The return path down n= ormally means the forward path is down as well.

In that case, not only this mechanism can actually make things worst, becau= se
it results in a false negative, but also the document does not specify how = the
system should recover.=C2=A0
[Mach]=C2=A0As= above, this result is desired in the case that requires the forward and re= verse path share route and fate. It should be kept down until the specified= return path recovered.

The I-D seems to assume complete topological
invariability for it to work long-term, since it does not specify any mecha= nism
to update or to deal with such a failure or change scenario.
GIM>> We've added the Operational Consideration= s section that describes how the local BFD system using periodic MPLS LSP P= ing can monitor the viability of the Reverse path. Particularly, the text t= hat describes this:
=C2=A0 =C2=A0If any of = defined in
=C2=A0 =C2=A0[RFC7110] sub-TLVs used in BFD Reverse Path TLV,= then the periodic
=C2=A0 =C2=A0verification of the control plane agains= t the data plane, as
=C2=A0 =C2=A0recommended in Section 4 [RFC5884], MU= ST use the Return Path TLV, as
=C2=A0 =C2=A0per [RFC7110], with that sub= -TLV.=C2=A0 By using the LSP Ping with Return
=C2=A0 =C2=A0Path TLV, an = operator monitors whether at the egress BFD node the
=C2=A0 =C2=A0revers= e LSP is mapped to the same FEC as the BFD session.=C2=A0 Selection
=C2= =A0 =C2=A0and control of the rate of LSP Ping with Return Path TLV follows = the
=C2=A0 =C2=A0recommendation of [RFC5884]: "The rate of generati= on of these LSP
=C2=A0 =C2=A0Ping Echo request messages SHOULD be signif= icantly less than the rate
=C2=A0 =C2=A0of generation of the BFD Control= packets.=C2=A0 An implementation MAY
=C2=A0 =C2=A0provide configuration= options to control the rate of generation of
=C2=A0 =C2=A0the periodic = LSP Ping Echo request messages."

On the other hand, there is already a BFD mechanism without the bootstrappi= ng
setup and with a command/response like behavior, that is S-BFD, RFC 7881. T= hat
one is notably missing from this draft.
GIM= >> The goal of the proposed mechanism is not to avoid bootstrapping a= BFD over MPLS LSP session or simulate Echo Response/Reply behavior but to = control the path the remote BFD system uses to transmit BFD control packets= in BFD Asynchronous mode.
[Mach] The purpo= se of this draft is to specify a particular return path, S-BFD cannot speci= fy the return path, thus cannot satisfy the requirement.

Further, there seem to be a number of potentially erroneous assumptions mad= e,
see below.

Additional Comments:

=C2=A0 =C2=A0 =C2=A0Bidirectional Forwarding Detection (BFD) Directed Retur= n Path

The title should include that this is *only* for MPLS BFD.
GIM>> Thank you for the helpful editorial suggestion= .

=C2=A0 =C2=A0When a BFD session monitors an explicitly routed unidirectiona= l path
=C2=A0 =C2=A0there may be a need to direct egress BFD peer to use a specifi= c path
=C2=A0 =C2=A0for the reverse direction of the BFD session.

Scope: is this solution targeted only for "explicitly routed unidirect= ional
path", and the solution to have the reply come back the exact reverse<= br> direction? That does not seem to be the case and the solution.
GIM>> The path from the remote BFD system may tra= verse the same nodes and links traversed by the BFD control packets transmi= tted from the ingress LER, i.e., be co-routed. But the proposed mechanism i= s more generic and allows an operator to control the path traversed by a BF= D control packet transmitted by the egress LER.

=C2=A0 =C2=A0[RFC5880], [RFC5881], and [RFC5883] established the BFD protoc= ol for
=C2=A0 =C2=A0IP networks.=C2=A0 [RFC5884] and [RFC7726] set rules of using = BFD
=C2=A0 =C2=A0asynchronous mode over IP/MPLS LSPs.=C2=A0 These standards imp= licitly
=C2=A0 =C2=A0assume that the egress BFD peer will use the shortest path rou= te
=C2=A0 =C2=A0regardless of route being used to send BFD control packets tow= ards
=C2=A0 =C2=A0it.

Is "These standards" referring to the three former or the four la= tter?
GIM>> Two latter two. We've= clarified that by the following update:
OL= D TEXT:
=C2=A0 =C2=A0[RFC5884] and [RFC7726= ] set rules of using BFD
=C2=A0 =C2=A0asynchronous mode over IP/MPLS LSPs.=C2=A0 These standards imp= licitly
=C2=A0 =C2=A0assume that the egress BFD peer will use the shortest path rou= te
=C2=A0 =C2=A0regardless of route being used to send BFD control packets tow= ards
=C2=A0 =C2=A0it.=C2=A0
NEW TEXT:
[RFC5= 884] and [RFC7726] set rules for using BFD
=C2=A0 =C2=A0asynchronous mod= e over IP/MPLS LSPs, while not defining means to
=C2=A0 =C2=A0control th= e path an egress BFD system uses to send BFD control
=C2=A0 =C2=A0packets towards the ingress BFD system.=C2=A0

=C2=A0 =C2=A0For the case where a LSP is explicitly routed it is likely tha= t the
=C2=A0 =C2=A0shortest return path to the ingress BFD peer would not follow = the
=C2=A0 =C2=A0same path as the LSP in the forward direction.=C2=A0 The fact = that BFD
=C2=A0 =C2=A0control packets are not guaranteed to follow the same links an= d nodes
=C2=A0 =C2=A0in both forward and reverse directions is a significant factor= in
=C2=A0 =C2=A0producing false positive defect notifications, i.e. false alar= ms, if
=C2=A0 =C2=A0used by the ingress BFD peer to deduce the state of the forwar= d
=C2=A0 =C2=A0direction.

There may be an implicit mis-assumption in this text and overall approach: = the
fact that traffic flows on one direction does not imply that the reverse direction using the same interfaces and nodes would actually be consequentl= y
properly programmed and working.
GIM>>= ; If the objective of controlling the path from the egress to the ingress s= ystem is to monitor such path, then detecting a defect in the forwarding pa= th fulfills the objective.

=C2=A0 =C2=A0This document defines the BFD Reverse Path TLV as an extension= to LSP
=C2=A0 =C2=A0Ping [RFC8029] and proposes that it is to be used to instruct = the
=C2=A0 =C2=A0egress BFD peer to use an explicit path for its BFD control pa= ckets
=C2=A0 =C2=A0associated with a particular BFD session.

This text assumes that the BFD return path is MPLS. However, my understandi= ng
from RFC 5884 is that this is not necessarily the case, and the return can = be
IP.
GIM>> The document defines an opt= ional mechanism to control the BFD Reverse path. The default behavior, if t= he BFD Reverse Path TLV is not included in the MPLS LSP Ping with the BFD D= iscriminator TLV, remains, as you've noted - over IP.

=C2=A0 =C2=A0When BFD is used to monitor unidirectional explicitly routed p= ath,
=C2=A0 =C2=A0e.g.=C2=A0 MPLS-TE LSP, BFD control packets in forward directi= on would be
=C2=A0 =C2=A0in-band using the mechanism defined in [RFC5884] and [RFC5586]= .

Which BFD uses RFC 5586? RFC5586 says that is not needed:
GIM>> We've removed references to RFC 5586.

=C2=A0 =C2=A0"Some of these functions can be supported using existing<= br> =C2=A0 =C2=A0tools such as Virtual Circuit Connectivity Verification (VCCV)=
=C2=A0 =C2=A0[RFC5085], Bidirectional Forwarding Detection for MPLS LSPs (B= FD-
=C2=A0 =C2=A0MPLS) [BFD-MPLS], LSP-Ping [RFC4379], or BFD-VCCV [BFD-VCCV].&= quot;

And then:

=C2=A0 =C2=A0o=C2=A0 a failure detection by ingress node on the reverse pat= h cannot be
=C2=A0 =C2=A0 =C2=A0 interpreted as bi-directional failure unambiguously an= d thus
=C2=A0 =C2=A0 =C2=A0 trigger, for example, protection switchover of the for= ward
=C2=A0 =C2=A0 =C2=A0 direction without possibility of being a false positiv= e.

=C2=A0 =C2=A0To address this scenario the egress BFD peer would be instruct= ed to
=C2=A0 =C2=A0use a specific path for BFD control packets.

But using a specific path for return cannot either imply "interpreted = as
bi-directional failure unambiguously", so the scenario is not *address= ed*.

=C2=A0 =C2=A0The BFD Reverse Path TLV carries information about the path on= to
=C2=A0 =C2=A0which the egress BFD peer of the BFD session referenced by the= BFD
=C2=A0 =C2=A0Discriminator TLV MUST transmit BFD control packets.=C2=A0 The= format of
=C2=A0 =C2=A0the BFD Reverse Path TLV is as presented in Figure 1.

What does the remote endpoint do with that "MUST" if the return F= EC goes away?
GIM>> The Operational C= onsiderations section includes the following text:
=C2=A0 =C2=A0Suppose an operator planned network maintenance activi= ty that
=C2=A0 =C2=A0possibly affects FEC used in the BFD Reverse Path T= LV.=C2=A0 In that case,
=C2=A0 =C2=A0the operator MUST avoid the unneces= sary disruption using the LSP Ping
=C2=A0 =C2=A0with a new FEC in the BF= D Reverse Path TLV.=C2=A0 But in some scenarios,
=C2=A0 =C2=A0proactive = measures cannot be taken.=C2=A0 Because the frequency of LSP
=C2=A0 =C2= =A0Ping messages will be lower than the defect detection time provided
= =C2=A0 =C2=A0by the BFD session.=C2=A0 As a result, a change in the reverse= -path FEC
=C2=A0 =C2=A0will first be detected as the BFD session's f= ailure.=C2=A0 In such a case,
=C2=A0 =C2=A0the ingress BFD node SHOULD i= mmediately transmit the LSP Ping Echo
=C2=A0 =C2=A0request with Return P= ath TLV to verify whether the FEC is still
=C2=A0 =C2=A0valid.=C2=A0 If = the failure was caused by the change in the FEC used for
=C2=A0 =C2=A0th= e reverse direction of the BFD session, the ingress BFD node SHOULD
=C2= =A0 =C2=A0bootstrap a new BFD session using another FEC in BFD Reverse Path=
=C2=A0 =C2=A0TLV.

There also seem to be some self-contradiction. This document says:

=C2=A0 =C2=A0LSP ping, defined in [RFC8029], uses BFD Discriminator TLV [RF= C5884]
=C2=A0 =C2=A0to bootstrap a BFD session over an MPLS LSP.=C2=A0 This docume= nt defines a
=C2=A0 =C2=A0new TLV, BFD Reverse Path TLV, that MUST contain a single sub-= TLV
=C2=A0 =C2=A0that can be used to carry information about the reverse path f= or the
=C2=A0 =C2=A0BFD session that is specified by value in BFD Discriminator TL= V.

And then says:

=C2=A0 =C2=A0Reverse Path field contains a sub-TLV.

But then says:

=C2=A0 =C2=A0None, one or more sub-TLVs MAY be included in the BFD Reverse<= br> =C2=A0 =C2=A0Path TLV.=C2=A0 If none sub-TLVs found in the BFD Reverse Path= TLV, the
=C2=A0 =C2=A0egress BFD peer MUST revert to using the default, i.e., over I= P
=C2=A0 =C2=A0network, reverse path.

So is it only one, or none/one/multiple?
GI= M>> Thank you for pointing this. Below is the update in the working v= ersion of the draft:
OLD TEXT:
=C2=A0 =C2=A0This
=C2=A0 =C2=A0document defines a ne= w TLV, BFD Reverse Path TLV, that MUST contain a
=C2=A0 =C2=A0single sub= -TLV that can be used to carry information about the
=C2=A0 =C2=A0revers= e path for the BFD session that is specified by the value in
=C2=A0 =C2= =A0BFD Discriminator TLV.
NEW TEXT:
=C2=A0 =C2=A0This
=C2=A0 =C2=A0document defines= a new TLV, BFD Reverse Path TLV, that MAY contain
=C2=A0 =C2=A0none, on= e or more sub-TLVs that can be used to carry information
=C2=A0 =C2=A0ab= out the reverse path for the BFD session that is specified by the
=C2=A0= =C2=A0value in BFD Discriminator TLV.

=
and one more:
OLD TEXT:
Reverse Path field contains a= sub-TLV
NEW TEXT:
Reverse Path field contains none, one or more sub-TLVs.

I believe it needs to be multiple since then a Tunnel can be specified. But= the
document as-is seems self-contradicting.

Further, where has that "default" been defined as "over IP n= etwork"?
GIM>> The text was re-w= orked to avoid using "default":
= =C2=A0 =C2=A0If no sub-TLVs are found in the BFD
=C2=A0 =C2=A0Reverse Pa= th TLV, the egress BFD peer MUST revert to using the local
=C2=A0 =C2=A0= policy based decision as described in Section 7 [RFC5884], i.e.,
=C2=A0 = =C2=A0routed over IP network.

There's another contradiction here:

=C2=A0 =C2=A0If the egress LSR cannot find the path specified in the Revers= e Path
=C2=A0 =C2=A0TLV it MUST send Echo Reply with the received Reverse Path TLV= and
=C2=A0 =C2=A0set the Return Code to "Failed to establish the BFD sessi= on.=C2=A0 The
=C2=A0 =C2=A0specified reverse path was not found" Section 3.3.=C2=A0 = The egress BFD
=C2=A0 =C2=A0peer MAY establish the BFD session over IP network as defined = in
=C2=A0 =C2=A0[RFC5884].

So the response is "Failed to establish the BFD session." But the= n it MAY
establish the session?=C2=A0
GIM>> Ec= ho Reply with the error code is to indicate that the reverse path is not av= ailable at the egress LSR. The local policy at the egress BFD system may co= mmand the transmission of a BFD control packet from egress to the ingress i= f the Reverse Path is not available.
And, a= gain, what if the path is found at bootstrap but
lost afterwards?
GIM>> Section 5 incl= udes text that provides information on handling such a scenario.

4.=C2=A0 Use Case Scenario

The fact that A-B-C-D-G-H works does not mean that the reverse, H-G-D-C-B-A= ,
will work.
GIM>> If the objective is to verify that the reverse path works, then= detecting a defect fulfills the task.
6.=C2=A0 Security Considerations

=C2=A0 =C2=A0Security considerations discussed in [RFC5880], [RFC5884], [RF= C7726],
=C2=A0 =C2=A0and [RFC8029], apply to this document.

There seem to be additional security considerations with returns taking
explicit paths, and should be expanded in here.
GIM>> That scenario is discussed in the Security Considerations = section in RFC 7110. A reference to RFC 7110 was added:

=C2=A0 =C2=A0Security con= siderations discussed in [RFC5880], [RFC5884], [RFC7726],
=C2=A0 =C2=A0[= RFC8029], and [RFC7110] apply to this document.

Net-net, I do have concerns about this document. I believe it is not ready = to
advance, and could use more whiteboard time as well as a review by BFD expe= rts.

Best,

Carlos Pignataro.

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15.20.3239.021; Wed, 5 Aug 2020 02:39:48 +0000 From: "Carlos Pignataro (cpignata)" To: Greg Mirsky CC: mpls , MPLS Working Group , "Routing Directorate" , "draft-ietf-mpls-bfd-directed@ietf.org" Thread-Topic: Rtgdir early review of draft-ietf-mpls-bfd-directed-07 Thread-Index: AQHWarAmTVPGqQG75UqYuGC31NkKHakozf2A Date: Wed, 5 Aug 2020 02:39:48 +0000 Message-ID: References: <149978159930.12344.18347332855391607627@ietfa.amsl.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: Apple Mail (2.3608.120.23.2.1) authentication-results: gmail.com; dkim=none (message not signed) header.d=none;gmail.com; dmarc=none action=none header.from=cisco.com; x-originating-ip: [136.56.129.159] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 4ffb34da-dc30-4721-324c-08d838e8d246 x-ms-traffictypediagnostic: BN6PR11MB3972: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:10000; x-ms-exchange-senderadcheck: 1 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05 Aug 2020 10:04:05 -0700 Archived-At: Subject: [mpls] Last Call: (A YANG Data Model for MPLS Base) to Proposed Standard X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 05 Aug 2020 17:04:06 -0000 The IESG has received a request from the Multiprotocol Label Switching WG (mpls) to consider the following document: - 'A YANG Data Model for MPLS Base' as Proposed Standard The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the last-call@ietf.org mailing lists by 2020-08-19. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract This document contains a specification of the MPLS base YANG model. The MPLS base YANG model serves as a base framework for configuring and managing an MPLS switching subsystem on an MPLS-enabled router. It is expected that other MPLS YANG models (e.g. MPLS Label Switched Path (LSP) Static, LDP or RSVP-TE YANG models) will augment the MPLS base YANG model. The file can be obtained via https://datatracker.ietf.org/doc/draft-ietf-mpls-base-yang/ No IPR declarations have been submitted directly on this I-D. 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DIR:OUT; SFP:1102; X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: btconnect.com X-MS-Exchange-CrossTenant-Network-Message-Id: b42fa352-06cf-4ce3-3695-08d839e3004f X-MS-Exchange-CrossTenant-AuthSource: VI1PR07MB6704.eurprd07.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Aug 2020 08:30:40.0835 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: cf8853ed-96e5-465b-9185-806bfe185e30 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: sr8pYf/vJvKvp5bTSFkffeHrCoFNSxPMtQ89M+af+mvzq0Ndz40B7ELQdCeFtNuPiOJpGUc8pcYbpat5ETFZdg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR0701MB2542 Archived-At: Subject: Re: [mpls] Last Call: (A YANG Data Model for MPLS Base) to Proposed Standard X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 06 Aug 2020 08:30:57 -0000 This I-D breaks a MUST in RFC8349 Routing Management) and, as such, will not interoperate with devices that implement RFC8349 correctly. RFC8349 provides a YANG action to return the active route for a destination address but omits the destination address, saying that modules using this must augment the input with a leaf destination-address. This I-D augments the input with a leaf local-label so implementations of RFC8349 that 'know' there will be a leaf destination-address will fail to interoperate with this I-D. The authors said, at WGLC, that RFC8349 is wrong, that MPLS has label not address and so the I-D must provide an augment with a label and RFC8349 should change. I disagree; I think that this is reading too many semantics into an identifier. Tom Petch On 05/08/2020 18:04, The IESG wrote: > > The IESG has received a request from the Multiprotocol Label Switching WG > (mpls) to consider the following document: - 'A YANG Data Model for MPLS Base' > as Proposed Standard > > The IESG plans to make a decision in the next few weeks, and solicits final > comments on this action. Please send substantive comments to the > last-call@ietf.org mailing lists by 2020-08-19. Exceptionally, comments may > be sent to iesg@ietf.org instead. In either case, please retain the beginning > of the Subject line to allow automated sorting. > > Abstract > > > This document contains a specification of the MPLS base YANG model. > The MPLS base YANG model serves as a base framework for configuring > and managing an MPLS switching subsystem on an MPLS-enabled router. > It is expected that other MPLS YANG models (e.g. MPLS Label Switched > Path (LSP) Static, LDP or RSVP-TE YANG models) will augment the MPLS > base YANG model. > > > > > The file can be obtained via > https://datatracker.ietf.org/doc/draft-ietf-mpls-base-yang/ > > > > No IPR declarations have been submitted directly on this I-D. > > > > > > _______________________________________________ > IETF-Announce mailing list > IETF-Announce@ietf.org > https://www.ietf.org/mailman/listinfo/ietf-announce > . > From nobody Thu Aug 6 22:52:40 2020 Return-Path: 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 939623A0BA9 for ; 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charset="us-ascii" Content-Transfer-Encoding: quoted-printable Content-Language: en-US Hi Loa, Thanks a lot for your feedback. I do understand your input in regards of re= ferring the code points to this document instead of the RFC's where they ar= e actually described. A bit of the history this document went through. IANA requested a formal do= cument for which this document was created for. Giving the context and use = cases. The IANA section of this document has then been reviewed by IE docto= rs and updated accordingly.=20 Please correct me if I am wrong. Looking at the IANA IPFIX registry, the re= ferences are always to documents where the values are actually defined. So = I do think that the original RFC references are correct, but I am not the e= xpert. I will take your input and double check when this document will receive the= final IE doctor review which I am going to request before going last call. Best Wishes Thomas -----Original Message----- From: Loa Andersson =20 Sent: Sunday, August 2, 2020 10:07 AM To: Graf Thomas, INI-NET-DCF ; mpls@ietf.org Subject: Re: [mpls] draft-tgraf-ipfix-mpls-sr-label-type Thomas, I have a question on the IANA section of this document. For every new code point, e.g.: This document specifies three additional code points for IS-IS, OSPv2 and OSPFv3 Segment Routing extension in the existing sub-registry "IPFIX MPLS label type (Value 46)" of the "IPFIX Information Elements" and one new "IPFIX Information Element" with a new sub- registry in the "IP Flow Information Export (IPFIX) Entities" name space. ---------------------------------------------- | Value| Description | Reference | |--------------------------------------------| | TBD1 | OSPFv2 Segment Routing | RFC8665 | |--------------------------------------------| | TBD2 | OSPFv3 Segment Routing | RFC8666 | |--------------------------------------------| | TBD3 | IS-IS Segment Routing | RFC8667 | ---------------------------------------------- Figure 1: Updates to "IPFIX Information Element #46" SubRegistry you put in a reference to old documents that does not define these code poi= nts. Shouldn't the reference say "this document"? I think this is true for almost all references you have put into the IANA s= ection. For the new sub-registry: ----------------------------------------- | Value | Description | Reference | |---------------------------------------| | TBD5 | Unknown SID Type | RFC8402 | |---------------------------------------| | TBD6 | Prefix-SID | RFC8402 | |---------------------------------------| | TBD7 | Node-SID | RFC8402 | |---------------------------------------| | TBD8 | Anycast-SID | RFC8402 | |---------------------------------------| | TBD9 | Adjacency-SID | RFC8402 | |---------------------------------------| | TBD10 | LAN-Adjacency-SID | RFC8402 | |---------------------------------------| | TBD11 | PeerNode-SID | RFC8402 | |---------------------------------------| | TBD12 | PeerAdj-SID | RFC8402 | |---------------------------------------| | TBD13 | PeerSet-SID | RFC8402 | |---------------------------------------| | TBD14 | Binding-SID | RFC8402 | ----------------------------------------- Figure 3: New "IPFIX Information Element #TBD4" SubRegistry You will have to define Registration Procedues! /Loa On 28/07/2020 16:11, Thomas.Graf@swisscom.com wrote: > Dear mpls, >=20 > I presented the following draft >=20 > Export of MPLS Segment Routing Label Type Information in IP Flow=20 > Information Export (IPFIX) >=20 > https://eur03.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Ftool > s.ietf.org%2Fhtml%2Fdraft-tgraf-ipfix-mpls-sr-label-type-04&data=3D0 > 2%7C01%7CThomas.Graf%40swisscom.com%7C1de9406dba0e422fa27508d836bb1ee2 > %7C364e5b87c1c7420d9beec35d19b557a1%7C1%7C0%7C637319524588913415&s > data=3DKVpjfCOYwZoJen3uAqID0sK%2FrWIujm4q7vDigug2%2B9A%3D&reserved=3D= 0 >=20 > at the spring working group at IETF 108 yesterday >=20 > https://eur03.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fwww. > ietf.org%2Fproceedings%2F108%2Fslides%2Fslides-108-spring-ip-flow-info > rmation-export-ipfix-00.pdf&data=3D02%7C01%7CThomas.Graf%40swisscom. > com%7C1de9406dba0e422fa27508d836bb1ee2%7C364e5b87c1c7420d9beec35d19b55 > 7a1%7C1%7C0%7C637319524588913415&sdata=3DU9jmYfa0Kxd7ewrOmAgBpoiFLFg > JkytxRvGCAX5egZs%3D&reserved=3D0 >=20 > and today at OPSAWG where I call for adoption. >=20 > This draft adds additional segment routing code points for in the IANA=20 > IPFIX registry for IS-IS, OPSFv2 and OPSF v3 and segment routing SID=20 > types to gain further insights into the MPLS-SR forwarding-plane. >=20 > I have been asked to not only gather feedback from spring and opsawg=20 > but also from lsr and mpls working groups since these code points are=20 > related to link state routing protocols and mpls data plane. >=20 > I am looking forward to your feedback and input. >=20 > Best Wishes >=20 > Thomas Graf >=20 >=20 > _______________________________________________ > mpls mailing list > mpls@ietf.org > https://eur03.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fwww. > ietf.org%2Fmailman%2Flistinfo%2Fmpls&data=3D02%7C01%7CThomas.Graf%40 > 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tests=[BAYES_00=-1.9, NICE_REPLY_A=-0.949, SPF_HELO_NONE=0.001, SPF_NONE=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 S4I9aG7J_wss for ; Fri, 7 Aug 2020 00:26:35 -0700 (PDT) Received: from pipi.pi.nu (pipi.pi.nu [83.168.239.141]) (using TLSv1.1 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id E99213A0C1B for ; Fri, 7 Aug 2020 00:26:34 -0700 (PDT) Received: from [192.168.1.19] (unknown [122.2.101.80]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: loa@pi.nu) by pipi.pi.nu (Postfix) with ESMTPSA id 8BB2B32726B; Fri, 7 Aug 2020 09:26:30 +0200 (CEST) To: Thomas.Graf@swisscom.com, mpls@ietf.org, IANA References: <1811130370.3403178.1595923899529@ss007565> <000862e2-a9c4-e6c9-5580-29fa06a9769e@pi.nu> <1248898123.1692458.1596779549400@ss002889> From: Loa Andersson Message-ID: Date: Fri, 7 Aug 2020 15:26:20 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: <1248898123.1692458.1596779549400@ss002889> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Archived-At: Subject: Re: [mpls] draft-tgraf-ipfix-mpls-sr-label-type X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 07 Aug 2020 07:26:38 -0000 Thomas, (including IANA for advice) There might be something I don't understand. Tentatively I think what has happened is some documents defined code points without make IANA allocations? What you reference below as the "RFC's where they are actually described." What I see is is that all the values you are asking for is called TBDx, which means that when this document is approved, IANA will review and assign values for each code point. This looks to me like the reference in the registry should be be to this document. I also think that the document should include clear references to the document and section where the code points are defined. I don't have an objection to place this in the list, but there should also be at lest some text explaining what we are doing. An example what could suffice: Figure 2: New "IPFIX Information Element #TBD4" ----------------------------------------------+ | Value | Description | Reference | |---------------------------------------------| | TBD5 | Unknown SID Type | This document | | | | this code point | | | | is defined in | | | | RFC8402 sect. x | |---------------------------------------------| | TBD6 | Prefix-SID | This document | | | | this code point | | | | is defined in | | | | RFC8402 sect. -| |---------------------------------------------| | | | | Only that RFC 8401 does not have a description of an Unknow SID Type, and says that Prefix-SID is an IPv6 address (nothing about a code point). /Loa On 07/08/2020 13:52, Thomas.Graf@swisscom.com wrote: > Hi Loa, > > Thanks a lot for your feedback. I do understand your input in regards of referring the code points to this document instead of the RFC's where they are actually described. > > A bit of the history this document went through. IANA requested a formal document for which this document was created for. Giving the context and use cases. The IANA section of this document has then been reviewed by IE doctors and updated accordingly. > > Please correct me if I am wrong. Looking at the IANA IPFIX registry, the references are always to documents where the values are actually defined. So I do think that the original RFC references are correct, but I am not the expert. > > I will take your input and double check when this document will receive the final IE doctor review which I am going to request before going last call. > > Best Wishes > Thomas > > -----Original Message----- > From: Loa Andersson > Sent: Sunday, August 2, 2020 10:07 AM > To: Graf Thomas, INI-NET-DCF ; mpls@ietf.org > Subject: Re: [mpls] draft-tgraf-ipfix-mpls-sr-label-type > > Thomas, > > I have a question on the IANA section of this document. > > For every new code point, e.g.: > > This document specifies three additional code points for IS-IS, OSPv2 > and OSPFv3 Segment Routing extension in the existing sub-registry > "IPFIX MPLS label type (Value 46)" of the "IPFIX Information > Elements" and one new "IPFIX Information Element" with a new sub- > registry in the "IP Flow Information Export (IPFIX) Entities" name > space. > > ---------------------------------------------- > | Value| Description | Reference | > |--------------------------------------------| > | TBD1 | OSPFv2 Segment Routing | RFC8665 | > |--------------------------------------------| > | TBD2 | OSPFv3 Segment Routing | RFC8666 | > |--------------------------------------------| > | TBD3 | IS-IS Segment Routing | RFC8667 | > ---------------------------------------------- > > Figure 1: Updates to "IPFIX Information Element #46" SubRegistry > > you put in a reference to old documents that does not define these code points. Shouldn't the reference say "this document"? > > I think this is true for almost all references you have put into the IANA section. > > For the new sub-registry: > > ----------------------------------------- > | Value | Description | Reference | > |---------------------------------------| > | TBD5 | Unknown SID Type | RFC8402 | > |---------------------------------------| > | TBD6 | Prefix-SID | RFC8402 | > |---------------------------------------| > | TBD7 | Node-SID | RFC8402 | > |---------------------------------------| > | TBD8 | Anycast-SID | RFC8402 | > |---------------------------------------| > | TBD9 | Adjacency-SID | RFC8402 | > |---------------------------------------| > | TBD10 | LAN-Adjacency-SID | RFC8402 | > |---------------------------------------| > | TBD11 | PeerNode-SID | RFC8402 | > |---------------------------------------| > | TBD12 | PeerAdj-SID | RFC8402 | > |---------------------------------------| > | TBD13 | PeerSet-SID | RFC8402 | > |---------------------------------------| > | TBD14 | Binding-SID | RFC8402 | > ----------------------------------------- > > Figure 3: New "IPFIX Information Element #TBD4" SubRegistry > > You will have to define Registration Procedues! > > /Loa > > On 28/07/2020 16:11, Thomas.Graf@swisscom.com wrote: >> Dear mpls, >> >> I presented the following draft >> >> Export of MPLS Segment Routing Label Type Information in IP Flow >> Information Export (IPFIX) >> >> https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftool >> s.ietf.org%2Fhtml%2Fdraft-tgraf-ipfix-mpls-sr-label-type-04&data=0 >> 2%7C01%7CThomas.Graf%40swisscom.com%7C1de9406dba0e422fa27508d836bb1ee2 >> %7C364e5b87c1c7420d9beec35d19b557a1%7C1%7C0%7C637319524588913415&s >> data=KVpjfCOYwZoJen3uAqID0sK%2FrWIujm4q7vDigug2%2B9A%3D&reserved=0 >> >> at the spring working group at IETF 108 yesterday >> >> https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww. >> ietf.org%2Fproceedings%2F108%2Fslides%2Fslides-108-spring-ip-flow-info >> rmation-export-ipfix-00.pdf&data=02%7C01%7CThomas.Graf%40swisscom. >> com%7C1de9406dba0e422fa27508d836bb1ee2%7C364e5b87c1c7420d9beec35d19b55 >> 7a1%7C1%7C0%7C637319524588913415&sdata=U9jmYfa0Kxd7ewrOmAgBpoiFLFg >> JkytxRvGCAX5egZs%3D&reserved=0 >> >> and today at OPSAWG where I call for adoption. >> >> This draft adds additional segment routing code points for in the IANA >> IPFIX registry for IS-IS, OPSFv2 and OPSF v3 and segment routing SID >> types to gain further insights into the MPLS-SR forwarding-plane. >> >> I have been asked to not only gather feedback from spring and opsawg >> but also from lsr and mpls working groups since these code points are >> related to link state routing protocols and mpls data plane. >> >> I am looking forward to your feedback and input. >> >> Best Wishes >> >> Thomas Graf >> >> >> _______________________________________________ >> mpls mailing list >> mpls@ietf.org >> https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww. >> ietf.org%2Fmailman%2Flistinfo%2Fmpls&data=02%7C01%7CThomas.Graf%40 >> swisscom.com%7C1de9406dba0e422fa27508d836bb1ee2%7C364e5b87c1c7420d9bee >> c35d19b557a1%7C1%7C0%7C637319524588913415&sdata=Rk6q0lYc3%2BZCF%2B >> FaKjdEDB0hdvku7RkzsMLGPDLQ4y8%3D&reserved=0 >> > -- Loa Andersson email: loa@pi.nu Senior MPLS Expert loa.pi.nu@gmail.com Bronze Dragon Consulting phone: +46 739 81 21 64 From nobody Fri Aug 7 09:48:51 2020 Return-Path: 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 4BA5C3A0C21; 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Mon, 10 Aug 2020 16:53:28 +0000 From: Eric Gray To: "" CC: "rtg-dir@ietf.org" , "draft-ietf-mpls-spl-terminology.all@ietf.org" , "mpls@ietf.org" Thread-Topic: Rtg-Dir Last Call review of draft-ietf-mpls-spl-terminology-02.txt Thread-Index: AdZvMBxWuouPPMQfQ3W+r62DdNiqAA== Date: Mon, 10 Aug 2020 16:53:27 +0000 Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: ietf.org; dkim=none (message not signed) header.d=none;ietf.org; dmarc=none action=none header.from=ericsson.com; x-originating-ip: [73.248.143.71] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 1f4e4c14-96b6-47e8-c2bc-08d83d4de7ac x-ms-traffictypediagnostic: MN2PR15MB3184: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:10000; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: W93vdj89NGAcq53cYT3e287YPmlnTx4XXxcPpZKNjYu7sZ2cKbFltUr7GXDqMwSJc5pEREIfeRQSPhj40RBeMmiLfgxoYStwI/9tJ9F02IW72Ltb2v6bhamUPD7kQZ+3AxOCxE761/cllhXTkqF158z4XtjHwV4MAacIN2NyUYaXGesaAqSLJS5dC9Qs0TAUEp97FFfGrRC+7M1EAUQLH5MTM5xi9I4QedoO4B6q01iZENFDMInuX/QDNu/DD/TOH5TGb+naYmk4GwJc10IKkiAswzE/M8yMrvzrLVfh7yz8DaJIkCFKvMtBCwfhO1DGIdfgtCo2NtEdZNVaekZJ1adHQBZalDMl5xUNkThkvJF9aeDnVunnpfJ4pBSJDptUk5Jt3WJ0odDghIPzPcqk6N6gGDD4PXIHAb0/izuRSrAcoIDAYPFZBQIe8rc1ESBa x-forefront-antispam-report: CIP:255.255.255.255; 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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: ericsson.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: MN2PR15MB3103.namprd15.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 1f4e4c14-96b6-47e8-c2bc-08d83d4de7ac X-MS-Exchange-CrossTenant-originalarrivaltime: 10 Aug 2020 16:53:27.9231 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 92e84ceb-fbfd-47ab-be52-080c6b87953f X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: VS+qdkceKfndZYRsg0rZbkOcjZWsXPplqV428t2Hz+dyLERiG9YquAstX+RWixk+SBtgAsGxWxKj2aGHtGy0wQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR15MB3184 Archived-At: Subject: [mpls] Rtg-Dir Last Call review of draft-ietf-mpls-spl-terminology-02.txt X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 10 Aug 2020 16:54:05 -0000 Hello,=20 I have been selected as the Routing Directorate reviewer for this draft. Th= e Routing Directorate seeks to review all routing or routing-related drafts= as they pass through IETF last call and IESG review, and sometimes on spec= ial request. The purpose of the review is to provide assistance to the Rout= ing ADs. For more information about the Routing Directorate, please see htt= p://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir=20 Although these comments are primarily for the use of the Routing ADs, it wo= uld be helpful if you could consider them along with any other IETF Last Ca= ll comments that you receive, and strive to resolve them through discussion= or by updating the draft.=20 Document: draft-ietf-mpls-spl-terminology-02.txt Reviewer: Eric Gray Review Date: 10 August, 2020 IETF LC End Date: 11 August, 2020 Intended Status: Informational Summary: This document is basically ready for publication, but has potential minor i= ssues and nits that should be considered prior to publication. Major Issues: None Minor Issues: Possibly omitted reference in the introduction (see Nits below)? Possible ambiguity about which registry is referred to in the latter part o= f section 2.1 (see Nits below)? Nits: In the 1st line of the 2nd paragraph of the Introduction, the word "use" ap= pears twice in a row. In the 4th paragraph of the introduction, RFC 3032 is separately listed twi= ce (i.e. - with the name "RFC 3032", and the link to the reference in each = case, it is actually listed 4 times). Note: I am not sure, but this may be more than a Nit - if, for instance, th= e intention was to list a different RFC. The paragraph claims the draft up= dates RFC 7274 and RFC 3032 - but RFC 7274 claims to update RFC 3038, RFC 3= 209, RFC 3811, RFC 4182, RFC 4928, RFC 5331, RFC 5586, RFC 5921, RFC 5960, = RFC 6391, RFC 6478, and RFC 6790 as well. =20 Possibly one of these other RFCs was also meant to be included? This does = not seem very likely, however, because only RFC 3032 and RFC 7274 are liste= d as updated on the cover page. I assume only one "registry" is referred to in the last sentence of section= 2.1 (and - in fact - in the entirety of section 2.1). In earlier sentence= s, the registry is explicitly named, or referred to as "that registry." In= the final sentence, there are two references to a registry - one of which = refers to "the registry" and the other to "that registry." As a Nit, I suggest using "that registry" consistently - unless a different= registry is actually referred to. In the 4th bullet in section 3, "an bSPL" should probably be "a bSPL." In the Security Considerations section, 1st paragraph - "establsihed" --> "= established" and "doucment" --> "document." 2nd paragraph - "the potential" --> "potential" (awkward using a definite a= rticle with a possibility). -- Eric From nobody Mon Aug 10 12:07:09 2020 Return-Path: X-Original-To: mpls@ietf.org Delivered-To: mpls@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 5173E3A0B86; Mon, 10 Aug 2020 12:07:00 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Derrell Piper via Datatracker To: Cc: draft-ietf-mpls-base-yang.all@ietf.org, last-call@ietf.org, mpls@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 7.13.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <159708642029.26538.15187840253454108442@ietfa.amsl.com> Reply-To: Derrell Piper Date: Mon, 10 Aug 2020 12:07:00 -0700 Archived-At: Subject: [mpls] Secdir last call review of draft-ietf-mpls-base-yang-14 X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 10 Aug 2020 19:07:01 -0000 Reviewer: Derrell Piper Review result: Ready I have reviewed this document as part of the security directorate's ongoing effort to review all IETF documents being processed by the IESG. These comments were written primarily for the benefit of the security area directors. Document editors and WG chairs should treat these comments just like any other last call comments. The summary of the review is Ready. This is a minor update which adds only an Informative Reference. From nobody Mon Aug 10 14:43:39 2020 Return-Path: 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 175033A0D77 for ; Mon, 10 Aug 2020 14:43:38 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.896 X-Spam-Level: X-Spam-Status: No, score=-1.896 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, 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 0XSgSAS9GjBz for ; Mon, 10 Aug 2020 14:43:36 -0700 (PDT) Received: from smtp01.icann.org (smtp01.icann.org [192.0.33.81]) (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 5853F3A0B48 for ; Mon, 10 Aug 2020 14:43:36 -0700 (PDT) Received: from request4.lax.icann.org (request1.lax.icann.org [10.32.11.221]) by smtp01.icann.org (Postfix) with ESMTP id 3A580E011C; Mon, 10 Aug 2020 21:43:36 +0000 (UTC) Received: by request4.lax.icann.org (Postfix, from userid 48) id 363342047B; Mon, 10 Aug 2020 21:43:36 +0000 (UTC) RT-Owner: sabrina.tanamal From: "Sabrina Tanamal via RT" Reply-To: iana-issues@iana.org In-Reply-To: References: <1811130370.3403178.1595923899529@ss007565> <000862e2-a9c4-e6c9-5580-29fa06a9769e@pi.nu> <1248898123.1692458.1596779549400@ss002889> Message-ID: X-RT-Loop-Prevention: IANA X-RT-Ticket: IANA #1175554 X-Managed-BY: RT 4.4.3 (http://www.bestpractical.com/rt/) X-RT-Originator: sabrina.tanamal@icann.org To: loa@pi.nu CC: mpls@ietf.org, thomas.graf@swisscom.com Content-Type: text/plain; charset="utf-8" X-RT-Original-Encoding: utf-8 Precedence: bulk Date: Mon, 10 Aug 2020 21:43:36 +0000 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Archived-At: Subject: [mpls] [IANA #1175554] Re: draft-tgraf-ipfix-mpls-sr-label-type X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 10 Aug 2020 21:43:38 -0000 Hi Loa, The IPFIX Information Elements registry is unique in that it has a "Requester" column. The requester is the document that makes the registration (if there is a document), but the "References" section can point to any document. When the IE Doctors reviewed version 01 in March, they specifically asked that references to RFC8667 and RFC8665 be added for the two IPFIX MPLS label type (Value 46) registrations, which at that point weren't associated with any references. Because that registry has only a "Reference" column and no "Requester" column, those registrations may not refer to this document at all (which is not uncommon). However, we could ask the IE Doctors whether these registrations should also refer to this document. This will have to be reviewed by the IE Doctors again at some point, as they've added several registrations. Best regards, Sabrina Tanamal Senior IANA Services Specialist On Fri Aug 07 07:51:13 2020, loa@pi.nu wrote: > Thomas, (including IANA for advice) > > There might be something I don't understand. > > Tentatively I think what has happened is some documents defined code > points without make IANA allocations? What you reference below as the > "RFC's where they are actually described." > > What I see is is that all the values you are asking for is called > TBDx, which means that when this document is approved, IANA will > review > and assign values for each code point. This looks to me like the > reference in the registry should be be to this document. > > I also think that the document should include clear references to the > document and section where the code points are defined. I don't have > an objection to place this in the list, but there should also be at > lest some text explaining what we are doing. > > An example what could suffice: > > Figure 2: New "IPFIX Information Element #TBD4" > > ----------------------------------------------+ > | Value | Description | Reference | > |---------------------------------------------| > | TBD5 | Unknown SID Type | This document | > | | | this code point | > | | | is defined in | > | | | RFC8402 sect. x | > |---------------------------------------------| > | TBD6 | Prefix-SID | This document | > | | | this code point | > | | | is defined in | > | | | RFC8402 sect. -| > |---------------------------------------------| > | | | | > > Only that RFC 8401 does not have a description of an Unknow SID Type, > and says that Prefix-SID is an IPv6 address (nothing about a code > point). > > > > /Loa > > On 07/08/2020 13:52, Thomas.Graf@swisscom.com wrote: > > Hi Loa, > > > > Thanks a lot for your feedback. I do understand your input in regards > > of referring the code points to this document instead of the RFC's > > where they are actually described. > > > > A bit of the history this document went through. IANA requested a > > formal document for which this document was created for. Giving the > > context and use cases. The IANA section of this document has then > > been reviewed by IE doctors and updated accordingly. > > > > Please correct me if I am wrong. Looking at the IANA IPFIX registry, > > the references are always to documents where the values are actually > > defined. So I do think that the original RFC references are correct, > > but I am not the expert. > > > > I will take your input and double check when this document will > > receive the final IE doctor review which I am going to request before > > going last call. > > > > Best Wishes > > Thomas > > > > -----Original Message----- > > From: Loa Andersson > > Sent: Sunday, August 2, 2020 10:07 AM > > To: Graf Thomas, INI-NET-DCF ; > > mpls@ietf.org > > Subject: Re: [mpls] draft-tgraf-ipfix-mpls-sr-label-type > > > > Thomas, > > > > I have a question on the IANA section of this document. > > > > For every new code point, e.g.: > > > > This document specifies three additional code points for IS-IS, OSPv2 > > and OSPFv3 Segment Routing extension in the existing sub-registry > > "IPFIX MPLS label type (Value 46)" of the "IPFIX Information > > Elements" and one new "IPFIX Information Element" with a new sub- > > registry in the "IP Flow Information Export (IPFIX) Entities" name > > space. > > > > ---------------------------------------------- > > | Value| Description | Reference | > > |--------------------------------------------| > > | TBD1 | OSPFv2 Segment Routing | RFC8665 | > > |--------------------------------------------| > > | TBD2 | OSPFv3 Segment Routing | RFC8666 | > > |--------------------------------------------| > > | TBD3 | IS-IS Segment Routing | RFC8667 | > > ---------------------------------------------- > > > > Figure 1: Updates to "IPFIX Information Element #46" SubRegistry > > > > you put in a reference to old documents that does not define these > > code points. Shouldn't the reference say "this document"? > > > > I think this is true for almost all references you have put into the > > IANA section. > > > > For the new sub-registry: > > > > ----------------------------------------- > > | Value | Description | Reference | > > |---------------------------------------| > > | TBD5 | Unknown SID Type | RFC8402 | > > |---------------------------------------| > > | TBD6 | Prefix-SID | RFC8402 | > > |---------------------------------------| > > | TBD7 | Node-SID | RFC8402 | > > |---------------------------------------| > > | TBD8 | Anycast-SID | RFC8402 | > > |---------------------------------------| > > | TBD9 | Adjacency-SID | RFC8402 | > > |---------------------------------------| > > | TBD10 | LAN-Adjacency-SID | RFC8402 | > > |---------------------------------------| > > | TBD11 | PeerNode-SID | RFC8402 | > > |---------------------------------------| > > | TBD12 | PeerAdj-SID | RFC8402 | > > |---------------------------------------| > > | TBD13 | PeerSet-SID | RFC8402 | > > |---------------------------------------| > > | TBD14 | Binding-SID | RFC8402 | > > ----------------------------------------- > > > > Figure 3: New "IPFIX Information Element #TBD4" SubRegistry > > > > You will have to define Registration Procedues! > > > > /Loa > > > > On 28/07/2020 16:11, Thomas.Graf@swisscom.com wrote: > >> Dear mpls, > >> > >> I presented the following draft > >> > >> Export of MPLS Segment Routing Label Type Information in IP Flow > >> Information Export (IPFIX) > >> > >> https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftool > >> s.ietf.org%2Fhtml%2Fdraft-tgraf-ipfix-mpls-sr-label-type- > >> 04&data=0 > >> 2%7C01%7CThomas.Graf%40swisscom.com%7C1de9406dba0e422fa27508d836bb1ee2 > >> %7C364e5b87c1c7420d9beec35d19b557a1%7C1%7C0%7C637319524588913415&s > >> data=KVpjfCOYwZoJen3uAqID0sK%2FrWIujm4q7vDigug2%2B9A%3D&reserved=0 > >> > >> at the spring working group at IETF 108 yesterday > >> > >> https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww. > >> ietf.org%2Fproceedings%2F108%2Fslides%2Fslides-108-spring-ip-flow- > >> info > >> rmation-export-ipfix- > >> 00.pdf&data=02%7C01%7CThomas.Graf%40swisscom. > >> com%7C1de9406dba0e422fa27508d836bb1ee2%7C364e5b87c1c7420d9beec35d19b55 > >> 7a1%7C1%7C0%7C637319524588913415&sdata=U9jmYfa0Kxd7ewrOmAgBpoiFLFg > >> JkytxRvGCAX5egZs%3D&reserved=0 > >> > >> and today at OPSAWG where I call for adoption. > >> > >> This draft adds additional segment routing code points for in the > >> IANA > >> IPFIX registry for IS-IS, OPSFv2 and OPSF v3 and segment routing SID > >> types to gain further insights into the MPLS-SR forwarding-plane. > >> > >> I have been asked to not only gather feedback from spring and opsawg > >> but also from lsr and mpls working groups since these code points > >> are > >> related to link state routing protocols and mpls data plane. > >> > >> I am looking forward to your feedback and input. > >> > >> Best Wishes > >> > >> Thomas Graf > >> > >> > >> _______________________________________________ > >> mpls mailing list > >> mpls@ietf.org > >> https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww. > >> ietf.org%2Fmailman%2Flistinfo%2Fmpls&data=02%7C01%7CThomas.Graf%40 > >> swisscom.com%7C1de9406dba0e422fa27508d836bb1ee2%7C364e5b87c1c7420d9bee > >> c35d19b557a1%7C1%7C0%7C637319524588913415&sdata=Rk6q0lYc3%2BZCF%2B > >> FaKjdEDB0hdvku7RkzsMLGPDLQ4y8%3D&reserved=0 > >> > > From nobody Mon Aug 10 22:46:21 2020 Return-Path: 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 515793A0C64 for ; 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Mon, 10 Aug 2020 22:46:15 -0700 (PDT) MIME-Version: 1.0 References: <1811130370.3403178.1595923899529@ss007565> <000862e2-a9c4-e6c9-5580-29fa06a9769e@pi.nu> <1248898123.1692458.1596779549400@ss002889> In-Reply-To: From: Loa Andersson Date: Tue, 11 Aug 2020 13:46:02 +0800 Message-ID: To: iana-issues@iana.org Cc: Loa Andersson , mpls , thomas.graf@swisscom.com Content-Type: multipart/alternative; boundary="000000000000eb904305ac9396c7" Archived-At: Subject: Re: [mpls] [IANA #1175554] Re: draft-tgraf-ipfix-mpls-sr-label-type X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 11 Aug 2020 05:46:20 -0000 --000000000000eb904305ac9396c7 Content-Type: text/plain; charset="UTF-8" Sabrina, >From a registry point of view the split between "Reference" and "Requester" will work though it seems odd to deviate from the meaning of any other registry when it comes to naming "Reference" information. You mention that IE Doctors specifically requested references to RFC8667 and RFC8665, is this true also for RFC 8666? This document specifies three additional code points for IS-IS, OSPv2 and OSPFv3 Segment Routing extension in the existing sub-registry "IPFIX MPLS label type (Value 46)" of the "IPFIX Information Elements" and one new "IPFIX Information Element" with a new sub- registry in the "IP Flow Information Export (IPFIX) Entities" name space. ---------------------------------------------- | Value| Description | Reference | |--------------------------------------------| | TBD1 | OSPFv2 Segment Routing | RFC8665 | |--------------------------------------------| | TBD2 | OSPFv3 Segment Routing | RFC8666 | |--------------------------------------------| | TBD3 | IS-IS Segment Routing | RFC8667 | ---------------------------------------------- The test actually says "three additional code points" they are called TDB1, TBD2 and TBD3, this indicates that the have not been specified anywhere else, if they have this should be made clear. I was also concerned that I couldn't find the definition of code point TBD1 in RFC8665. Exactly what is referenced? I have similar concerns on "New "IPFIX Information Element #TBD4" which sadi to be a new registry. Buet the cases I was looking for in 8402 I could not find. /Loa Den tis 11 aug. 2020 kl 05:43 skrev Sabrina Tanamal via RT < iana-issues@iana.org>: > Hi Loa, > > The IPFIX Information Elements registry is unique in that it has a > "Requester" column. The requester is the document that makes the > registration (if there is a document), but the "References" section can > point to any document. > > When the IE Doctors reviewed version 01 in March, they specifically asked > that references to RFC8667 and RFC8665 be added for the two IPFIX MPLS > label type (Value 46) registrations, which at that point weren't associated > with any references. Because that registry has only a "Reference" column > and no "Requester" column, those registrations may not refer to this > document at all (which is not uncommon). However, we could ask the IE > Doctors whether these registrations should also refer to this document. > > This will have to be reviewed by the IE Doctors again at some point, as > they've added several registrations. > > Best regards, > > Sabrina Tanamal > Senior IANA Services Specialist > > On Fri Aug 07 07:51:13 2020, loa@pi.nu wrote: > > Thomas, (including IANA for advice) > > > > There might be something I don't understand. > > > > Tentatively I think what has happened is some documents defined code > > points without make IANA allocations? What you reference below as the > > "RFC's where they are actually described." > > > > What I see is is that all the values you are asking for is called > > TBDx, which means that when this document is approved, IANA will > > review > > and assign values for each code point. This looks to me like the > > reference in the registry should be be to this document. > > > > I also think that the document should include clear references to the > > document and section where the code points are defined. I don't have > > an objection to place this in the list, but there should also be at > > lest some text explaining what we are doing. > > > > An example what could suffice: > > > > Figure 2: New "IPFIX Information Element #TBD4" > > > > ----------------------------------------------+ > > | Value | Description | Reference | > > |---------------------------------------------| > > | TBD5 | Unknown SID Type | This document | > > | | | this code point | > > | | | is defined in | > > | | | RFC8402 sect. x | > > |---------------------------------------------| > > | TBD6 | Prefix-SID | This document | > > | | | this code point | > > | | | is defined in | > > | | | RFC8402 sect. -| > > |---------------------------------------------| > > | | | | > > > > Only that RFC 8401 does not have a description of an Unknow SID Type, > > and says that Prefix-SID is an IPv6 address (nothing about a code > > point). > > > > > > > > /Loa > > > > On 07/08/2020 13:52, Thomas.Graf@swisscom.com wrote: > > > Hi Loa, > > > > > > Thanks a lot for your feedback. I do understand your input in regards > > > of referring the code points to this document instead of the RFC's > > > where they are actually described. > > > > > > A bit of the history this document went through. IANA requested a > > > formal document for which this document was created for. Giving the > > > context and use cases. The IANA section of this document has then > > > been reviewed by IE doctors and updated accordingly. > > > > > > Please correct me if I am wrong. Looking at the IANA IPFIX registry, > > > the references are always to documents where the values are actually > > > defined. So I do think that the original RFC references are correct, > > > but I am not the expert. > > > > > > I will take your input and double check when this document will > > > receive the final IE doctor review which I am going to request before > > > going last call. > > > > > > Best Wishes > > > Thomas > > > > > > -----Original Message----- > > > From: Loa Andersson > > > Sent: Sunday, August 2, 2020 10:07 AM > > > To: Graf Thomas, INI-NET-DCF ; > > > mpls@ietf.org > > > Subject: Re: [mpls] draft-tgraf-ipfix-mpls-sr-label-type > > > > > > Thomas, > > > > > > I have a question on the IANA section of this document. > > > > > > For every new code point, e.g.: > > > > > > This document specifies three additional code points for IS-IS, OSPv2 > > > and OSPFv3 Segment Routing extension in the existing sub-registry > > > "IPFIX MPLS label type (Value 46)" of the "IPFIX Information > > > Elements" and one new "IPFIX Information Element" with a new sub- > > > registry in the "IP Flow Information Export (IPFIX) Entities" name > > > space. > > > > > > ---------------------------------------------- > > > | Value| Description | Reference | > > > |--------------------------------------------| > > > | TBD1 | OSPFv2 Segment Routing | RFC8665 | > > > |--------------------------------------------| > > > | TBD2 | OSPFv3 Segment Routing | RFC8666 | > > > |--------------------------------------------| > > > | TBD3 | IS-IS Segment Routing | RFC8667 | > > > ---------------------------------------------- > > > > > > Figure 1: Updates to "IPFIX Information Element #46" SubRegistry > > > > > > you put in a reference to old documents that does not define these > > > code points. Shouldn't the reference say "this document"? > > > > > > I think this is true for almost all references you have put into the > > > IANA section. > > > > > > For the new sub-registry: > > > > > > ----------------------------------------- > > > | Value | Description | Reference | > > > |---------------------------------------| > > > | TBD5 | Unknown SID Type | RFC8402 | > > > |---------------------------------------| > > > | TBD6 | Prefix-SID | RFC8402 | > > > |---------------------------------------| > > > | TBD7 | Node-SID | RFC8402 | > > > |---------------------------------------| > > > | TBD8 | Anycast-SID | RFC8402 | > > > |---------------------------------------| > > > | TBD9 | Adjacency-SID | RFC8402 | > > > |---------------------------------------| > > > | TBD10 | LAN-Adjacency-SID | RFC8402 | > > > |---------------------------------------| > > > | TBD11 | PeerNode-SID | RFC8402 | > > > |---------------------------------------| > > > | TBD12 | PeerAdj-SID | RFC8402 | > > > |---------------------------------------| > > > | TBD13 | PeerSet-SID | RFC8402 | > > > |---------------------------------------| > > > | TBD14 | Binding-SID | RFC8402 | > > > ----------------------------------------- > > > > > > Figure 3: New "IPFIX Information Element #TBD4" SubRegistry > > > > > > You will have to define Registration Procedues! > > > > > > /Loa > > > > > > On 28/07/2020 16:11, Thomas.Graf@swisscom.com wrote: > > >> Dear mpls, > > >> > > >> I presented the following draft > > >> > > >> Export of MPLS Segment Routing Label Type Information in IP Flow > > >> Information Export (IPFIX) > > >> > > >> > https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftool > > >> s.ietf.org%2Fhtml%2Fdraft-tgraf-ipfix-mpls-sr-label-type- > > >> 04&data=0 > > >> 2%7C01%7CThomas.Graf%40swisscom.com > %7C1de9406dba0e422fa27508d836bb1ee2 > > >> %7C364e5b87c1c7420d9beec35d19b557a1%7C1%7C0%7C637319524588913415&s > > >> data=KVpjfCOYwZoJen3uAqID0sK%2FrWIujm4q7vDigug2%2B9A%3D&reserved=0 > > >> > > >> at the spring working group at IETF 108 yesterday > > >> > > >> https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww > . > > >> ietf.org%2Fproceedings%2F108%2Fslides%2Fslides-108-spring-ip-flow- > > >> info > > >> rmation-export-ipfix- > > >> 00.pdf&data=02%7C01%7CThomas.Graf%40swisscom. > > >> com%7C1de9406dba0e422fa27508d836bb1ee2%7C364e5b87c1c7420d9beec35d19b55 > > >> 7a1%7C1%7C0%7C637319524588913415&sdata=U9jmYfa0Kxd7ewrOmAgBpoiFLFg > > >> JkytxRvGCAX5egZs%3D&reserved=0 > > >> > > >> and today at OPSAWG where I call for adoption. > > >> > > >> This draft adds additional segment routing code points for in the > > >> IANA > > >> IPFIX registry for IS-IS, OPSFv2 and OPSF v3 and segment routing SID > > >> types to gain further insights into the MPLS-SR forwarding-plane. > > >> > > >> I have been asked to not only gather feedback from spring and opsawg > > >> but also from lsr and mpls working groups since these code points > > >> are > > >> related to link state routing protocols and mpls data plane. > > >> > > >> I am looking forward to your feedback and input. > > >> > > >> Best Wishes > > >> > > >> Thomas Graf > > >> > > >> > > >> _______________________________________________ > > >> mpls mailing list > > >> mpls@ietf.org > > >> https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww > . > > >> ietf.org > %2Fmailman%2Flistinfo%2Fmpls&data=02%7C01%7CThomas.Graf%40 > > >> swisscom.com > %7C1de9406dba0e422fa27508d836bb1ee2%7C364e5b87c1c7420d9bee > > >> c35d19b557a1%7C1%7C0%7C637319524588913415&sdata=Rk6q0lYc3%2BZCF%2B > > >> FaKjdEDB0hdvku7RkzsMLGPDLQ4y8%3D&reserved=0 > > >> > > > > > _______________________________________________ > mpls mailing list > mpls@ietf.org > https://www.ietf.org/mailman/listinfo/mpls > --000000000000eb904305ac9396c7 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Sabrina,

From a regist= ry point=C2=A0of view the split between=C2=A0"Reference" and &quo= t;Requester" will work though it seems odd=C2=A0to deviate from the=C2= =A0meaning of any other registry when it comes to naming "Reference&qu= ot; information.

You mention that IE Doctors speci= fically requested=C2=A0 references to RFC8667 and RFC8665, is this true als= o for RFC 8666?

   This document specifies three additional code points f=
or IS-IS, OSPv2
   and OSPFv3 Segment Routing extension in the existing sub-registry
   "IPFIX MPLS label type (Value 46)" of the "IPFIX Informat=
ion
   Elements" and one new "IPFIX Information Element" with a =
new sub-
   registry in the "IP Flow Information Export (IPFIX) Entities" =
name
   space.

            ----------------------------------------------
            | Value|       Description       | Reference |
            |--------------------------------------------|
            | TBD1 | OSPFv2 Segment Routing  |  RFC8665  |
            |--------------------------------------------|
            | TBD2 | OSPFv3 Segment Routing  |  RFC8666  |
            |--------------------------------------------|
            | TBD3 | IS-IS Segment Routing   |  RFC8667  |
            ----------------------------------------------


The= test actually says "three additional code points" they are calle= d TDB1, TBD2 and TBD3, this indicates that the have=C2=A0 not been specifie= d=C2=A0anywhere else, if they have this should be made clear.
=C2=A0I was also concerned that I couldn't find the definit= ion of code point TBD1 in RFC8665. Exactly what is referenced?
I have similar concerns on "New "IPFIX Information Element #TBD4" whi= ch sadi to be a new registry. Buet the cases I was looking for in 8402 I co= uld not find.

/Loa


Den tis 11 aug. 2020= kl 05:43 skrev Sabrina Tanamal via RT <iana-issues@iana.org>:
Hi Loa,

The IPFIX Information Elements registry is unique in that it has a "Re= quester" column. The requester is the document that makes the registra= tion (if there is a document), but the "References" section can p= oint to any document.

When the IE Doctors reviewed version 01 in March, they specifically asked t= hat references to RFC8667 and RFC8665 be added for the two IPFIX MPLS label= type (Value 46) registrations, which at that point weren't associated = with any references. Because that registry has only a "Reference"= column and no "Requester" column, those registrations may not re= fer to this document at all (which is not uncommon). However, we could ask = the IE Doctors whether these registrations should also refer to this docume= nt.

This will have to be reviewed by the IE Doctors again at some point, as the= y've added several registrations.

Best regards,

Sabrina Tanamal
Senior IANA Services Specialist

On Fri Aug 07 07:51:13 2020, loa@pi.nu wrote:
> Thomas, (including IANA for advice)
>
> There might be something I don't understand.
>
> Tentatively I think what has happened is some documents defined code > points without make IANA allocations? What you reference below as the<= br> > "RFC's where they are actually described."
>
> What I see is is that all the values you are asking for is called
>=C2=A0 TBDx, which means that when this document is approved, IANA will=
> review
>=C2=A0 and assign values for each code point. This looks to me like the=
> reference=C2=A0 in the registry should be be to this document.
>
> I also think that the document should include clear references to the<= br> > document and section where the code points are defined. I don't ha= ve
> an objection to place this in the list, but there should also be at > lest some text explaining what we are doing.
>
> An example what could suffice:
>
> Figure 2: New "IPFIX Information Element #TBD4"
>
> ----------------------------------------------+
> | Value |=C2=A0 Description=C2=A0 =C2=A0 =C2=A0 | Reference=C2=A0 =C2= =A0 =C2=A0 =C2=A0|
> |---------------------------------------------|
> | TBD5=C2=A0 | Unknown SID Type=C2=A0 | This document=C2=A0 =C2=A0| > |=C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0| this code point |
> |=C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0| is defined in=C2=A0 =C2=A0|
> |=C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0| RFC8402 sect. x |
> |---------------------------------------------|
> | TBD6=C2=A0 | Prefix-SID=C2=A0 =C2=A0 =C2=A0 =C2=A0 | This document= =C2=A0 =C2=A0|
> |=C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0| this code point |
> |=C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0| is defined in=C2=A0 =C2=A0|
> |=C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0| RFC8402 sect.=C2=A0 -|
> |---------------------------------------------|
> |=C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0|
>
> Only that RFC 8401 does not have a description of an Unknow SID Type,<= br> > and says that Prefix-SID is an IPv6 address (nothing about a code
> point).
>
>
>
> /Loa
>
> On 07/08/2020 13:52, Thomas.Graf@swisscom.com wrote:
> > Hi Loa,
> >
> > Thanks a lot for your feedback. I do understand your input in reg= ards
> > of referring the code points to this document instead of the RFC&= #39;s
> > where they are actually described.
> >
> > A bit of the history this document went through. IANA requested a=
> > formal document for which this document was created for. Giving t= he
> > context and use cases. The IANA section of this document has then=
> > been reviewed by IE doctors and updated accordingly.
> >
> > Please correct me if I am wrong. Looking at the IANA IPFIX regist= ry,
> > the references are always to documents where the values are actua= lly
> > defined. So I do think that the original RFC references are corre= ct,
> > but I am not the expert.
> >
> > I will take your input and double check when this document will > > receive the final IE doctor review which I am going to request be= fore
> > going last call.
> >
> > Best Wishes
> > Thomas
> >
> > -----Original Message-----
> > From: Loa Andersson <loa@pi.nu>
> > Sent: Sunday, August 2, 2020 10:07 AM
> > To: Graf Thomas, INI-NET-DCF <Thomas.Graf@swisscom.com>;
> > mpls@ietf.org<= /a>
> > Subject: Re: [mpls] draft-tgraf-ipfix-mpls-sr-label-type
> >
> > Thomas,
> >
> > I have a question on the IANA section of this document.
> >
> > For every new code point, e.g.:
> >
> > This document specifies three additional code points for IS-IS, O= SPv2
> > and OSPFv3 Segment Routing extension in the existing sub-registry=
> > "IPFIX MPLS label type (Value 46)" of the "IPFIX I= nformation
> > Elements" and one new "IPFIX Information Element" = with a new sub-
> > registry in the "IP Flow Information Export (IPFIX) Entities= " name
> > space.
> >
> > ----------------------------------------------
> > | Value|=C2=A0 =C2=A0 =C2=A0 =C2=A0Description=C2=A0 =C2=A0 =C2= =A0 =C2=A0| Reference |
> > |--------------------------------------------|
> > | TBD1 | OSPFv2 Segment Routing=C2=A0 |=C2=A0 RFC8665=C2=A0 |
> > |--------------------------------------------|
> > | TBD2 | OSPFv3 Segment Routing=C2=A0 |=C2=A0 RFC8666=C2=A0 |
> > |--------------------------------------------|
> > | TBD3 | IS-IS Segment Routing=C2=A0 =C2=A0|=C2=A0 RFC8667=C2=A0 = |
> > ----------------------------------------------
> >
> > Figure 1: Updates to "IPFIX Information Element #46" Su= bRegistry
> >
> > you put in a reference to old documents that does not define thes= e
> > code points. Shouldn't the reference say "this document&= quot;?
> >
> > I think this is true for almost all references you have put into = the
> > IANA section.
> >
> > For the new sub-registry:
> >
> > -----------------------------------------
> > | Value |=C2=A0 Description=C2=A0 =C2=A0 =C2=A0 | Reference |
> > |---------------------------------------|
> > | TBD5=C2=A0 | Unknown SID Type=C2=A0 |=C2=A0 RFC8402=C2=A0 |
> > |---------------------------------------|
> > | TBD6=C2=A0 | Prefix-SID=C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=A0 RFC8= 402=C2=A0 |
> > |---------------------------------------|
> > | TBD7=C2=A0 | Node-SID=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2=A0= RFC8402=C2=A0 |
> > |---------------------------------------|
> > | TBD8=C2=A0 | Anycast-SID=C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 RFC8= 402=C2=A0 |
> > |---------------------------------------|
> > | TBD9=C2=A0 | Adjacency-SID=C2=A0 =C2=A0 =C2=A0|=C2=A0 RFC8402= =C2=A0 |
> > |---------------------------------------|
> > | TBD10 | LAN-Adjacency-SID |=C2=A0 RFC8402=C2=A0 |
> > |---------------------------------------|
> > | TBD11 | PeerNode-SID=C2=A0 =C2=A0 =C2=A0 |=C2=A0 RFC8402=C2=A0 = |
> > |---------------------------------------|
> > | TBD12 | PeerAdj-SID=C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 RFC8402= =C2=A0 |
> > |---------------------------------------|
> > | TBD13 | PeerSet-SID=C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 RFC8402= =C2=A0 |
> > |---------------------------------------|
> > | TBD14 | Binding-SID=C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 RFC8402= =C2=A0 |
> > -----------------------------------------
> >
> > Figure 3: New "IPFIX Information Element #TBD4" SubRegi= stry
> >
> > You will have to define Registration Procedues!
> >
> > /Loa
> >
> > On 28/07/2020 16:11, Thomas.Graf@swisscom.com wrote:
> >> Dear mpls,
> >>
> >> I presented the following draft
> >>
> >> Export of MPLS Segment Routing Label Type Information in IP F= low
> >> Information Export (IPFIX)
> >>
> >> https://eur03.= safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Ftool
> >> s.ietf.org%2Fhtml%2Fdraft-tgraf-ipfix-mpls-sr-label-type-
> >> 04&amp;data=3D0
> >> 2%7C01%7CThomas.Graf%40swisscom.com%7C1de9406dba0e422fa27508d= 836bb1ee2
> >> %7C364e5b87c1c7420d9beec35d19b557a1%7C1%7C0%7C637319524588913= 415&amp;s
> >> data=3DKVpjfCOYwZoJen3uAqID0sK%2FrWIujm4q7vDigug2%2B9A%3D&= ;amp;reserved=3D0
> >>
> >> at the spring working group at IETF 108 yesterday
> >>
> >> https://eur03.s= afelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fwww.
> >> ietf.org%2Fproceedings%2F108%2Fslides%2Fslides-108-spring-ip-flow-<= br> > >> info
> >> rmation-export-ipfix-
> >> 00.pdf&amp;data=3D02%7C01%7CThomas.Graf%40swisscom.
> >> com%7C1de9406dba0e422fa27508d836bb1ee2%7C364e5b87c1c7420d9bee= c35d19b55
> >> 7a1%7C1%7C0%7C637319524588913415&amp;sdata=3DU9jmYfa0Kxd7= ewrOmAgBpoiFLFg
> >> JkytxRvGCAX5egZs%3D&amp;reserved=3D0
> >>
> >> and today at OPSAWG where I call for adoption.
> >>
> >> This draft adds additional segment routing code points for in= the
> >> IANA
> >> IPFIX registry for IS-IS, OPSFv2 and OPSF v3 and segment rout= ing SID
> >> types to gain further insights into the MPLS-SR forwarding-pl= ane.
> >>
> >> I have been asked to not only gather feedback from spring and= opsawg
> >> but also from lsr and mpls working groups since these code po= ints
> >> are
> >> related to link state routing protocols and mpls data plane.<= br> > >>
> >> I am looking forward to your feedback and input.
> >>
> >> Best Wishes
> >>
> >> Thomas Graf
> >>
> >>
> >> _______________________________________________
> >> mpls mailing list
> >> mpls@ietf.= org
> >> https://eur03.s= afelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fwww.
> >> ietf.org%2Fmailman%2Flistinfo%2Fmpls&amp;data=3D02%7C01%7CThoma= s.Graf%40
> >> swisscom.com%7C1de9406dba0e422fa27508d836bb1ee2%7C364e5b87c1c74= 20d9bee
> >> c35d19b557a1%7C1%7C0%7C637319524588913415&amp;sdata=3DRk6= q0lYc3%2BZCF%2B
> >> FaKjdEDB0hdvku7RkzsMLGPDLQ4y8%3D&amp;reserved=3D0
> >>
> >

_______________________________________________
mpls mailing list
mpls@ietf.org
https://www.ietf.org/mailman/listinfo/mpls
--000000000000eb904305ac9396c7-- From nobody Tue Aug 11 03:41:17 2020 Return-Path: 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 E84AB3A0F84; Tue, 11 Aug 2020 03:41:15 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.846 X-Spam-Level: X-Spam-Status: No, score=-2.846 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, NICE_REPLY_A=-0.949, SPF_HELO_NONE=0.001, SPF_NONE=0.001, URIBL_BLOCKED=0.001] autolearn=unavailable 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 IIpXOib02hNp; Tue, 11 Aug 2020 03:41:14 -0700 (PDT) Received: from pipi.pi.nu (pipi.pi.nu [83.168.239.141]) (using TLSv1.1 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 340B83A0F82; Tue, 11 Aug 2020 03:41:13 -0700 (PDT) Received: from [192.168.1.19] (unknown [122.2.101.80]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: loa@pi.nu) by pipi.pi.nu (Postfix) with ESMTPSA id 6DD8532757C; Tue, 11 Aug 2020 12:41:09 +0200 (CEST) To: Eric Gray , rtg-ads@ietf.org Cc: "rtg-dir@ietf.org" , "draft-ietf-mpls-spl-terminology.all@ietf.org" , "mpls@ietf.org" References: From: Loa Andersson Message-ID: <366be63f-7bc3-39a6-a2a2-de2d974982a5@pi.nu> Date: Tue, 11 Aug 2020 18:41:04 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Archived-At: Subject: Re: [mpls] Rtg-Dir Last Call review of draft-ietf-mpls-spl-terminology-02.txt X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 11 Aug 2020 10:41:16 -0000 Eric, Tnx for comments, very useful. I will await instructions from Deborah and the post an updated version. Most of your are straightforward and will be updated as you suggest. Two small comments below. On 11/08/2020 00:53, Eric Gray wrote: The duplication of RFC 3202 is a typo. As what update what in: > Note: I am not sure, but this may be more than a Nit - if, for instance, the intention was to list a different RFC. The paragraph claims the draft updates RFC 7274 and RFC 3032 - but RFC 7274 claims to update RFC 3038, RFC 3209, RFC 3811, RFC 4182, RFC 4928, RFC 5331, RFC 5586, RFC 5921, RFC 5960, RFC 6391, RFC 6478, and RFC 6790 as well. What RFC 7274 does to the listed RFCs is to rename them from "Resereved Labels" to "Special Purpose Labels" The terminology draft aligns with this. First bullet in in Section 3 says: o Collectively, the two ranges are known as Special Purpose Labels (SPL). The changes in this draft and RFC 7274 are not overlapping. /Loa -- Loa Andersson email: loa@pi.nu Senior MPLS Expert loa.pi.nu@gmail.com Bronze Dragon Consulting phone: +46 739 81 21 64 From nobody Tue Aug 11 06:08:47 2020 Return-Path: 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 3331D3A0B33; Tue, 11 Aug 2020 06:08:46 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -9.598 X-Spam-Level: X-Spam-Status: No, score=-9.598 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, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=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=QebPTisu; dkim=pass (1024-bit key) 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by vs3.iomartmail.com (Postfix) with ESMTPS id 4EA8C22032; Tue, 11 Aug 2020 14:46:36 +0100 (BST) Received: from LAPTOPK7AS653V (54.151.51.84.dyn.plus.net [84.51.151.54] (may be forged)) (authenticated bits=0) by asmtp3.iomartmail.com (8.14.4/8.14.4) with ESMTP id 07BDkZvH010221 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Tue, 11 Aug 2020 14:46:35 +0100 Reply-To: From: "Adrian Farrel" To: "'Loa Andersson'" , "'Eric Gray'" , Cc: , , References: <366be63f-7bc3-39a6-a2a2-de2d974982a5@pi.nu> In-Reply-To: <366be63f-7bc3-39a6-a2a2-de2d974982a5@pi.nu> Date: Tue, 11 Aug 2020 14:46:35 +0100 Organization: Old Dog Consulting Message-ID: <025601d66fe5$d5116810$7f343830$@olddog.co.uk> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQEvOBGWSY2sEmgikhIux25CNDYpEQNcm9bOqmZ1IpA= Content-Language: en-gb X-Originating-IP: 84.51.151.54 X-Thinkmail-Auth: adrian@olddog.co.uk 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draft-ietf-mpls-spl-terminology-02.txt X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 11 Aug 2020 13:46:42 -0000 So I understand Eric's point about updates of updates. We're updating 7274, and 7274 updated , so surely = we are updating as well. What Loa says is that we are not updating the bit of 7274 that updated = . He's right about that, but it is maybe not such a strong = point. After all, someone directed from to read 7274 = might miss the wider material. But I think that historically (Deborah to confirm) "updates" is only = used for direct updating. That is, the reader is expected to walk = through the chain of documents by finding " is updated = by 7274" and also finding "7274 is updated by [This.I-D]". (This might all be different if we were obsoleting 7274, but we're not = =F0=9F=98=8A) A -----Original Message----- From: Loa Andersson =20 Sent: 11 August 2020 11:41 To: Eric Gray ; = rtg-ads@ietf.org Cc: rtg-dir@ietf.org; draft-ietf-mpls-spl-terminology.all@ietf.org; = mpls@ietf.org Subject: Re: [mpls] Rtg-Dir Last Call review of = draft-ietf-mpls-spl-terminology-02.txt Eric, Tnx for comments, very useful. I will await instructions from Deborah and the post an updated version. Most of your are straightforward and will be updated as you suggest. Two small comments below. On 11/08/2020 00:53, Eric Gray wrote: The duplication of RFC 3202 is a typo. As what update what in: > Note: I am not sure, but this may be more than a Nit - if, for = instance, the intention was to list a different RFC. The paragraph = claims the draft updates RFC 7274 and RFC 3032 - but RFC 7274 claims to = update RFC 3038, RFC 3209, RFC 3811, RFC 4182, RFC 4928, RFC 5331, RFC = 5586, RFC 5921, RFC 5960, RFC 6391, RFC 6478, and RFC 6790 as well. What RFC 7274 does to the listed RFCs is to rename them from "Resereved Labels" to "Special Purpose Labels" The terminology draft aligns with this. First bullet in in Section 3 says: o Collectively, the two ranges are known as Special Purpose Labels (SPL). The changes in this draft and RFC 7274 are not overlapping. /Loa --=20 Loa Andersson email: loa@pi.nu Senior MPLS Expert loa.pi.nu@gmail.com Bronze Dragon Consulting phone: +46 739 81 21 64 From nobody Tue Aug 11 10:37:08 2020 Return-Path: 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 011653A0522; Tue, 11 Aug 2020 10:36:59 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.098 X-Spam-Level: X-Spam-Status: No, score=-2.098 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=juniper.net header.b=hEMKuKcO; dkim=pass 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scancount=1 engine=8.12.0-2006250000 definitions=main-2008110122 Archived-At: Subject: Re: [mpls] [netmod] [Technical Errata Reported] RFC8349 (6251) X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 11 Aug 2020 17:37:06 -0000 SGkgQWNlZSBhbmQgVG9tLA0KDQpUaGFua3MgZm9yIHlvdXIgZmVlZGJhY2sgYW5kIHN1Z2dlc3Rp b25zLiBQbGVhc2Ugc2VlIGZ1cnRoZXIgcmVzcG9uc2UgaW5saW5lLi4NCg0K77u/T24gOC8xMS8y MCwgOTowOCBBTSwgIkFjZWUgTGluZGVtIChhY2VlKSIgPGFjZWVAY2lzY28uY29tPiB3cm90ZToN Cg0KICAgIFtFeHRlcm5hbCBFbWFpbC4gQmUgY2F1dGlvdXMgb2YgY29udGVudF0NCg0KDQogICAg SGkgVG9tLCBEcmFmdCBBdXRob3JzLA0KDQogICAgVGhlIGRyYWZ0IGNvdWxkIGVhc2lseSBiZSBm aXhlZC4gWW91IGp1c3QgbmVlZCB0bzoNCg0KICAgICAgMS4gRXhwYW5kIG9uIHRoZSBzaW5nbGUg c2VudGVuY2UgaW4gc2VjdGlvbiAyLjEgb24gdGhlIG5lZWQgZm9yIG5vbi1JUCBNUExTIHJvdXRl 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ietfa.amsl.com (Postfix) with ESMTP id 8988C3A078C for ; Tue, 11 Aug 2020 10:59:05 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.896 X-Spam-Level: X-Spam-Status: No, score=-1.896 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, 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 AqROVFjb2sN6 for ; Tue, 11 Aug 2020 10:59:03 -0700 (PDT) Received: from smtp01.icann.org (smtp01.icann.org [192.0.33.81]) (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 AD1433A0778 for ; Tue, 11 Aug 2020 10:59:03 -0700 (PDT) Received: from request4.lax.icann.org (request1.lax.icann.org [10.32.11.221]) by smtp01.icann.org (Postfix) with ESMTP id 64063E04EE; Tue, 11 Aug 2020 17:59:03 +0000 (UTC) Received: by request4.lax.icann.org (Postfix, from userid 48) id 5F9131FFEB; Tue, 11 Aug 2020 17:59:03 +0000 (UTC) RT-Owner: sabrina.tanamal From: "Sabrina Tanamal via RT" Reply-To: iana-issues@iana.org In-Reply-To: References: <1811130370.3403178.1595923899529@ss007565> <000862e2-a9c4-e6c9-5580-29fa06a9769e@pi.nu> <1248898123.1692458.1596779549400@ss002889> Message-ID: X-RT-Loop-Prevention: IANA X-RT-Ticket: IANA #1175554 X-Managed-BY: RT 4.4.3 (http://www.bestpractical.com/rt/) X-RT-Originator: sabrina.tanamal@icann.org To: loa@pi.nu CC: thomas.graf@swisscom.com, mpls@ietf.org Content-Type: text/plain; charset="utf-8" X-RT-Original-Encoding: utf-8 Precedence: bulk Date: Tue, 11 Aug 2020 17:59:03 +0000 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Archived-At: Subject: [mpls] [IANA #1175554] Re: draft-tgraf-ipfix-mpls-sr-label-type X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 11 Aug 2020 17:59:06 -0000 Hi Thomas, Loa, Loa, thanks for the review. Thomas, Loa has pointed out some issues with the document. Please see below and apply the appropriate changes. Can you let us know when the document has been updated so we can ask the IE Doctors to do another review? Best regards, Sabrina Tanamal Senior IANA Services Specialist On Tue Aug 11 05:46:56 2020, loa.pi.nu@gmail.com wrote: > Sabrina, > > From a registry point of view the split between "Reference" and > "Requester" > will work though it seems odd to deviate from the meaning of any other > registry when it comes to naming "Reference" information. > > You mention that IE Doctors specifically requested references to > RFC8667 > and RFC8665, is this true also for RFC 8666? > > This document specifies three additional code points for IS-IS, OSPv2 > and OSPFv3 Segment Routing extension in the existing sub-registry > "IPFIX MPLS label type (Value 46)" of the "IPFIX Information > Elements" and one new "IPFIX Information Element" with a new sub- > registry in the "IP Flow Information Export (IPFIX) Entities" name > space. > > ---------------------------------------------- > | Value| Description | Reference | > |--------------------------------------------| > | TBD1 | OSPFv2 Segment Routing | RFC8665 > | > |--------------------------------------------| > | TBD2 | OSPFv3 Segment Routing | RFC8666 > | > |--------------------------------------------| > | TBD3 | IS-IS Segment Routing | RFC8667 > | > ---------------------------------------------- > > > > The test actually says "three additional code points" they are called > TDB1, > TBD2 and TBD3, this indicates that the have not been specified > anywhere > else, if they have this should be made clear. > > I was also concerned that I couldn't find the definition of code point > TBD1 in RFC8665. Exactly what is referenced? > > I have similar concerns on "New "IPFIX Information Element #TBD4" > which > sadi to be a new registry. Buet the cases I was looking for in 8402 I > could > not find. > > /Loa > > > Den tis 11 aug. 2020 kl 05:43 skrev Sabrina Tanamal via RT < > iana-issues@iana.org>: > > > Hi Loa, > > > > The IPFIX Information Elements registry is unique in that it has a > > "Requester" column. The requester is the document that makes the > > registration (if there is a document), but the "References" section > > can > > point to any document. > > > > When the IE Doctors reviewed version 01 in March, they specifically > > asked > > that references to RFC8667 and RFC8665 be added for the two IPFIX > > MPLS > > label type (Value 46) registrations, which at that point weren't > > associated > > with any references. Because that registry has only a "Reference" > > column > > and no "Requester" column, those registrations may not refer to this > > document at all (which is not uncommon). However, we could ask the IE > > Doctors whether these registrations should also refer to this > > document. > > > > This will have to be reviewed by the IE Doctors again at some point, > > as > > they've added several registrations. > > > > Best regards, > > > > Sabrina Tanamal > > Senior IANA Services Specialist > > > > On Fri Aug 07 07:51:13 2020, loa@pi.nu wrote: > > > Thomas, (including IANA for advice) > > > > > > There might be something I don't understand. > > > > > > Tentatively I think what has happened is some documents defined > > > code > > > points without make IANA allocations? What you reference below as > > > the > > > "RFC's where they are actually described." > > > > > > What I see is is that all the values you are asking for is called > > > TBDx, which means that when this document is approved, IANA will > > > review > > > and assign values for each code point. This looks to me like the > > > reference in the registry should be be to this document. > > > > > > I also think that the document should include clear references to > > > the > > > document and section where the code points are defined. I don't > > > have > > > an objection to place this in the list, but there should also be at > > > lest some text explaining what we are doing. > > > > > > An example what could suffice: > > > > > > Figure 2: New "IPFIX Information Element #TBD4" > > > > > > ----------------------------------------------+ > > > | Value | Description | Reference | > > > |---------------------------------------------| > > > | TBD5 | Unknown SID Type | This document | > > > | | | this code point | > > > | | | is defined in | > > > | | | RFC8402 sect. x | > > > |---------------------------------------------| > > > | TBD6 | Prefix-SID | This document | > > > | | | this code point | > > > | | | is defined in | > > > | | | RFC8402 sect. -| > > > |---------------------------------------------| > > > | | | | > > > > > > Only that RFC 8401 does not have a description of an Unknow SID > > > Type, > > > and says that Prefix-SID is an IPv6 address (nothing about a code > > > point). > > > > > > > > > > > > /Loa > > > > > > On 07/08/2020 13:52, Thomas.Graf@swisscom.com wrote: > > > > Hi Loa, > > > > > > > > Thanks a lot for your feedback. I do understand your input in > > > > regards > > > > of referring the code points to this document instead of the > > > > RFC's > > > > where they are actually described. > > > > > > > > A bit of the history this document went through. IANA requested a > > > > formal document for which this document was created for. Giving > > > > the > > > > context and use cases. The IANA section of this document has then > > > > been reviewed by IE doctors and updated accordingly. > > > > > > > > Please correct me if I am wrong. Looking at the IANA IPFIX > > > > registry, > > > > the references are always to documents where the values are > > > > actually > > > > defined. So I do think that the original RFC references are > > > > correct, > > > > but I am not the expert. > > > > > > > > I will take your input and double check when this document will > > > > receive the final IE doctor review which I am going to request > > > > before > > > > going last call. > > > > > > > > Best Wishes > > > > Thomas > > > > > > > > -----Original Message----- > > > > From: Loa Andersson > > > > Sent: Sunday, August 2, 2020 10:07 AM > > > > To: Graf Thomas, INI-NET-DCF ; > > > > mpls@ietf.org > > > > Subject: Re: [mpls] draft-tgraf-ipfix-mpls-sr-label-type > > > > > > > > Thomas, > > > > > > > > I have a question on the IANA section of this document. > > > > > > > > For every new code point, e.g.: > > > > > > > > This document specifies three additional code points for IS-IS, > > > > OSPv2 > > > > and OSPFv3 Segment Routing extension in the existing sub-registry > > > > "IPFIX MPLS label type (Value 46)" of the "IPFIX Information > > > > Elements" and one new "IPFIX Information Element" with a new sub- > > > > registry in the "IP Flow Information Export (IPFIX) Entities" > > > > name > > > > space. > > > > > > > > ---------------------------------------------- > > > > | Value| Description | Reference | > > > > |--------------------------------------------| > > > > | TBD1 | OSPFv2 Segment Routing | RFC8665 | > > > > |--------------------------------------------| > > > > | TBD2 | OSPFv3 Segment Routing | RFC8666 | > > > > |--------------------------------------------| > > > > | TBD3 | IS-IS Segment Routing | RFC8667 | > > > > ---------------------------------------------- > > > > > > > > Figure 1: Updates to "IPFIX Information Element #46" SubRegistry > > > > > > > > you put in a reference to old documents that does not define > > > > these > > > > code points. Shouldn't the reference say "this document"? > > > > > > > > I think this is true for almost all references you have put into > > > > the > > > > IANA section. > > > > > > > > For the new sub-registry: > > > > > > > > ----------------------------------------- > > > > | Value | Description | Reference | > > > > |---------------------------------------| > > > > | TBD5 | Unknown SID Type | RFC8402 | > > > > |---------------------------------------| > > > > | TBD6 | Prefix-SID | RFC8402 | > > > > |---------------------------------------| > > > > | TBD7 | Node-SID | RFC8402 | > > > > |---------------------------------------| > > > > | TBD8 | Anycast-SID | RFC8402 | > > > > |---------------------------------------| > > > > | TBD9 | Adjacency-SID | RFC8402 | > > > > |---------------------------------------| > > > > | TBD10 | LAN-Adjacency-SID | RFC8402 | > > > > |---------------------------------------| > > > > | TBD11 | PeerNode-SID | RFC8402 | > > > > |---------------------------------------| > > > > | TBD12 | PeerAdj-SID | RFC8402 | > > > > |---------------------------------------| > > > > | TBD13 | PeerSet-SID | RFC8402 | > > > > |---------------------------------------| > > > > | TBD14 | Binding-SID | RFC8402 | > > > > ----------------------------------------- > > > > > > > > Figure 3: New "IPFIX Information Element #TBD4" SubRegistry > > > > > > > > You will have to define Registration Procedues! > > > > > > > > /Loa > > > > > > > > On 28/07/2020 16:11, Thomas.Graf@swisscom.com wrote: > > > >> Dear mpls, > > > >> > > > >> I presented the following draft > > > >> > > > >> Export of MPLS Segment Routing Label Type Information in IP Flow > > > >> Information Export (IPFIX) > > > >> > > > >> > > https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftool > > > >> s.ietf.org%2Fhtml%2Fdraft-tgraf-ipfix-mpls-sr-label-type- > > > >> 04&data=0 > > > >> 2%7C01%7CThomas.Graf%40swisscom.com > > %7C1de9406dba0e422fa27508d836bb1ee2 > > > >> %7C364e5b87c1c7420d9beec35d19b557a1%7C1%7C0%7C637319524588913415&s > > > >> data=KVpjfCOYwZoJen3uAqID0sK%2FrWIujm4q7vDigug2%2B9A%3D&reserved=0 > > > >> > > > >> at the spring working group at IETF 108 yesterday > > > >> > > > >> https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww > > . > > > >> ietf.org%2Fproceedings%2F108%2Fslides%2Fslides-108-spring-ip- > > > >> flow- > > > >> info > > > >> rmation-export-ipfix- > > > >> 00.pdf&data=02%7C01%7CThomas.Graf%40swisscom. > > > >> com%7C1de9406dba0e422fa27508d836bb1ee2%7C364e5b87c1c7420d9beec35d19b55 > > > >> 7a1%7C1%7C0%7C637319524588913415&sdata=U9jmYfa0Kxd7ewrOmAgBpoiFLFg > > > >> JkytxRvGCAX5egZs%3D&reserved=0 > > > >> > > > >> and today at OPSAWG where I call for adoption. > > > >> > > > >> This draft adds additional segment routing code points for in > > > >> the > > > >> IANA > > > >> IPFIX registry for IS-IS, OPSFv2 and OPSF v3 and segment routing > > > >> SID > > > >> types to gain further insights into the MPLS-SR forwarding- > > > >> plane. > > > >> > > > >> I have been asked to not only gather feedback from spring and > > > >> opsawg > > > >> but also from lsr and mpls working groups since these code > > > >> points > > > >> are > > > >> related to link state routing protocols and mpls data plane. > > > >> > > > >> I am looking forward to your feedback and input. > > > >> > > > >> Best Wishes > > > >> > > > >> Thomas Graf > > > >> > > > >> > > > >> _______________________________________________ > > > >> mpls mailing list > > > >> mpls@ietf.org > > > >> https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww > > . > > > >> ietf.org > > %2Fmailman%2Flistinfo%2Fmpls&data=02%7C01%7CThomas.Graf%40 > > > >> swisscom.com > > %7C1de9406dba0e422fa27508d836bb1ee2%7C364e5b87c1c7420d9bee > > > >> c35d19b557a1%7C1%7C0%7C637319524588913415&sdata=Rk6q0lYc3%2BZCF%2B > > > >> FaKjdEDB0hdvku7RkzsMLGPDLQ4y8%3D&reserved=0 > > > >> > > > > > > > > _______________________________________________ > > mpls mailing list > > mpls@ietf.org > > https://www.ietf.org/mailman/listinfo/mpls > > From nobody Wed Aug 12 01:34:42 2020 Return-Path: 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 632323A0E63 for ; 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charset="us-ascii" Content-Transfer-Encoding: quoted-printable Content-Language: en-US Hi Sabrina, Hi Loa Thanks a lot for the feedback regarding the "Requester" column. For clarifi= cation, and I think this is what Loa is referring to, the "Requester" colum= n refers to the document that the code point requested, where the "Referenc= e" column links to the document where the metric value is coming from. Plea= se correct me if my understanding is wrong. As an example, in the IPFIX Information Elements registry https://www.iana.org/assignments/ipfix/ipfix.xhtml#ipfix-information-elemen= ts code point 10, ingressInterface. points to RFC 2863 where ifindex is descri= bed. Looking at IPFIX MPLS label type (Value 46) registry https://www.iana.org/assignments/ipfix/ipfix.xhtml#ipfix-mpls-label-type There the "Reference" column for code points 1-5 links to=20 https://tools.ietf.org/html/rfc5102#section-7.2 In my opinion, this link should be under "Requester" and not under "Referen= ce" column. If we take code point 4, "BGP: Any label associated with BGP or BGP routing= ", the "Reference" column should link to https://tools.ietf.org/html/rfc8277 If my understanding is correct, would it make sense to correct it according= ly. I am gladly assist to add the reference links and review it with the IE= doctor. Regarding TBD2, OSPFv3 Segment Routing in draft-tgraf-ipfix-mpls-sr-label-t= ype. This has been added after the IE doctor review based on feedback from = SPRING wg. Same as for TBD4, SrSidType, new registry, this had been added a= fter the IE doctor review as well. I received another feedback from LSR wg = to add another code point for BGP Prefix-SID, RFC 8669 which will be added = in draft-tgraf-ipfix-mpls-sr-label-type-05. With this, the list of all rout= ing protocols capable of carrying segment routing labels and all segment ro= uting SID types should be covered. Once this is all updated at OPSAWG adopted, I planned to approach IE doctor= for another review. I hope this makes sense. Best wishes Thomas -----Original Message----- From: Sabrina Tanamal via RT =20 Sent: Tuesday, August 11, 2020 7:59 PM To: loa@pi.nu Cc: Graf Thomas, INI-NET-DCF ; mpls@ietf.org Subject: [IANA #1175554] Re: [mpls] draft-tgraf-ipfix-mpls-sr-label-type Hi Thomas, Loa,=20 Loa, thanks for the review.=20 Thomas, Loa has pointed out some issues with the document. Please see below= and apply the appropriate changes. Can you let us know when the document h= as been updated so we can ask the IE Doctors to do another review?=20 Best regards,=20 Sabrina Tanamal Senior IANA Services Specialist On Tue Aug 11 05:46:56 2020, loa.pi.nu@gmail.com wrote: > Sabrina, >=20 > From a registry point of view the split between "Reference" and=20 > "Requester" > will work though it seems odd to deviate from the meaning of any other=20 > registry when it comes to naming "Reference" information. >=20 > You mention that IE Doctors specifically requested references to > RFC8667 > and RFC8665, is this true also for RFC 8666? >=20 > This document specifies three additional code points for IS-IS, OSPv2=20 > and OSPFv3 Segment Routing extension in the existing sub-registry=20 > "IPFIX MPLS label type (Value 46)" of the "IPFIX Information Elements"=20 > and one new "IPFIX Information Element" with a new sub- registry in=20 > the "IP Flow Information Export (IPFIX) Entities" name space. >=20 > ---------------------------------------------- > | Value| Description | Reference | > |--------------------------------------------| > | TBD1 | OSPFv2 Segment Routing | RFC8665 > ls.ietf.org%2Fhtml%2Frfc8665&data=3D02%7C01%7CThomas.Graf%40swisscom > .com%7C6f51599d207b4faeec6208d83e203ef0%7C364e5b87c1c7420d9beec35d19b5 > 57a1%7C1%7C0%7C637327655514916466&sdata=3D6CBHC%2F%2FGr5H%2B3Mt9CeSA > VgGdD%2B2cZG94i84bJv0PkGA%3D&reserved=3D0> | > |--------------------------------------------| > | TBD2 | OSPFv3 Segment Routing | RFC8666 > ls.ietf.org%2Fhtml%2Frfc8666&data=3D02%7C01%7CThomas.Graf%40swisscom > .com%7C6f51599d207b4faeec6208d83e203ef0%7C364e5b87c1c7420d9beec35d19b5 > 57a1%7C1%7C0%7C637327655514916466&sdata=3D9NTeQLQNbc9SuLuKrfv0cJYUyf > klyWFUmC5uKbblL1w%3D&reserved=3D0> | > |--------------------------------------------| > | TBD3 | IS-IS Segment Routing | RFC8667 > ls.ietf.org%2Fhtml%2Frfc8667&data=3D02%7C01%7CThomas.Graf%40swisscom > .com%7C6f51599d207b4faeec6208d83e203ef0%7C364e5b87c1c7420d9beec35d19b5 > 57a1%7C1%7C0%7C637327655514916466&sdata=3Di7551OWxpbM2BNcqdVTisbBs0l > %2BYb%2B6LEfP67U7WVRI%3D&reserved=3D0> | > ---------------------------------------------- >=20 >=20 >=20 > The test actually says "three additional code points" they are called=20 > TDB1, > TBD2 and TBD3, this indicates that the have not been specified=20 > anywhere else, if they have this should be made clear. >=20 > I was also concerned that I couldn't find the definition of code point > TBD1 in RFC8665. Exactly what is referenced? >=20 > I have similar concerns on "New "IPFIX Information Element #TBD4" > which > sadi to be a new registry. Buet the cases I was looking for in 8402 I=20 > could not find. >=20 > /Loa >=20 >=20 > Den tis 11 aug. 2020 kl 05:43 skrev Sabrina Tanamal via RT < > iana-issues@iana.org>: >=20 > > Hi Loa, > > > > The IPFIX Information Elements registry is unique in that it has a=20 > > "Requester" column. The requester is the document that makes the=20 > > registration (if there is a document), but the "References" section=20 > > can point to any document. > > > > When the IE Doctors reviewed version 01 in March, they specifically=20 > > asked that references to RFC8667 and RFC8665 be added for the two=20 > > IPFIX MPLS label type (Value 46) registrations, which at that point=20 > > weren't associated with any references. Because that registry has=20 > > only a "Reference" > > column > > and no "Requester" column, those registrations may not refer to this=20 > > document at all (which is not uncommon). However, we could ask the=20 > > IE Doctors whether these registrations should also refer to this=20 > > document. > > > > This will have to be reviewed by the IE Doctors again at some point,=20 > > as they've added several registrations. > > > > Best regards, > > > > Sabrina Tanamal > > Senior IANA Services Specialist > > > > On Fri Aug 07 07:51:13 2020, loa@pi.nu wrote: > > > Thomas, (including IANA for advice) > > > > > > There might be something I don't understand. > > > > > > Tentatively I think what has happened is some documents defined=20 > > > code points without make IANA allocations? What you reference=20 > > > below as the "RFC's where they are actually described." > > > > > > What I see is is that all the values you are asking for is called =20 > > > TBDx, which means that when this document is approved, IANA will=20 > > > review and assign values for each code point. This looks to me=20 > > > like the reference in the registry should be be to this document. > > > > > > I also think that the document should include clear references to=20 > > > the document and section where the code points are defined. I=20 > > > don't have an objection to place this in the list, but there=20 > > > should also be at lest some text explaining what we are doing. > > > > > > An example what could suffice: > > > > > > Figure 2: New "IPFIX Information Element #TBD4" > > > > > > ----------------------------------------------+ > > > | Value | Description | Reference | > > > |---------------------------------------------| > > > | TBD5 | Unknown SID Type | This document | > > > | | | this code point | > > > | | | is defined in | > > > | | | RFC8402 sect. x | > > > |---------------------------------------------| > > > | TBD6 | Prefix-SID | This document | > > > | | | this code point | > > > | | | is defined in | > > > | | | RFC8402 sect. -| > > > |---------------------------------------------| > > > | | | | > > > > > > Only that RFC 8401 does not have a description of an Unknow SID=20 > > > Type, and says that Prefix-SID is an IPv6 address (nothing about a=20 > > > code point). > > > > > > > > > > > > /Loa > > > > > > On 07/08/2020 13:52, Thomas.Graf@swisscom.com wrote: > > > > Hi Loa, > > > > > > > > Thanks a lot for your feedback. I do understand your input in=20 > > > > regards of referring the code points to this document instead of=20 > > > > the RFC's where they are actually described. > > > > > > > > A bit of the history this document went through. IANA requested=20 > > > > a formal document for which this document was created for.=20 > > > > Giving the context and use cases. The IANA section of this=20 > > > > document has then been reviewed by IE doctors and updated=20 > > > > accordingly. > > > > > > > > Please correct me if I am wrong. Looking at the IANA IPFIX=20 > > > > registry, the references are always to documents where the=20 > > > > values are actually defined. So I do think that the original RFC=20 > > > > references are correct, but I am not the expert. > > > > > > > > I will take your input and double check when this document will=20 > > > > receive the final IE doctor review which I am going to request=20 > > > > before going last call. > > > > > > > > Best Wishes > > > > Thomas > > > > > > > > -----Original Message----- > > > > From: Loa Andersson > > > > Sent: Sunday, August 2, 2020 10:07 AM > > > > To: Graf Thomas, INI-NET-DCF ;=20 > > > > mpls@ietf.org > > > > Subject: Re: [mpls] draft-tgraf-ipfix-mpls-sr-label-type > > > > > > > > Thomas, > > > > > > > > I have a question on the IANA section of this document. > > > > > > > > For every new code point, e.g.: > > > > > > > > This document specifies three additional code points for IS-IS, > > > > OSPv2 > > > > and OSPFv3 Segment Routing extension in the existing=20 > > > > sub-registry "IPFIX MPLS label type (Value 46)" of the "IPFIX=20 > > > > Information Elements" and one new "IPFIX Information Element"=20 > > > > with a new sub- registry in the "IP Flow Information Export (IPFIX)= Entities" > > > > name > > > > space. > > > > > > > > ---------------------------------------------- > > > > | Value| Description | Reference | > > > > |--------------------------------------------| > > > > | TBD1 | OSPFv2 Segment Routing | RFC8665 | > > > > |--------------------------------------------| > > > > | TBD2 | OSPFv3 Segment Routing | RFC8666 | > > > > |--------------------------------------------| > > > > | TBD3 | IS-IS Segment Routing | RFC8667 | > > > > ---------------------------------------------- > > > > > > > > Figure 1: Updates to "IPFIX Information Element #46" SubRegistry > > > > > > > > you put in a reference to old documents that does not define=20 > > > > these code points. Shouldn't the reference say "this document"? > > > > > > > > I think this is true for almost all references you have put into=20 > > > > the IANA section. > > > > > > > > For the new sub-registry: > > > > > > > > ----------------------------------------- > > > > | Value | Description | Reference | > > > > |---------------------------------------| > > > > | TBD5 | Unknown SID Type | RFC8402 | > > > > |---------------------------------------| > > > > | TBD6 | Prefix-SID | RFC8402 | > > > > |---------------------------------------| > > > > | TBD7 | Node-SID | RFC8402 | > > > > |---------------------------------------| > > > > | TBD8 | Anycast-SID | RFC8402 | > > > > |---------------------------------------| > > > > | TBD9 | Adjacency-SID | RFC8402 | > > > > |---------------------------------------| > > > > | TBD10 | LAN-Adjacency-SID | RFC8402 | > > > > |---------------------------------------| > > > > | TBD11 | PeerNode-SID | RFC8402 | > > > > |---------------------------------------| > > > > | TBD12 | PeerAdj-SID | RFC8402 | > > > > |---------------------------------------| > > > > | TBD13 | PeerSet-SID | RFC8402 | > > > > |---------------------------------------| > > > > | TBD14 | Binding-SID | RFC8402 | > > > > ----------------------------------------- > > > > > > > > Figure 3: New "IPFIX Information Element #TBD4" SubRegistry > > > > > > > > You will have to define Registration Procedues! > > > > > > > > /Loa > > > > > > > > On 28/07/2020 16:11, Thomas.Graf@swisscom.com wrote: > > > >> Dear mpls, > > > >> > > > >> I presented the following draft > > > >> > > > >> Export of MPLS Segment Routing Label Type Information in IP=20 > > > >> Flow Information Export (IPFIX) > > > >> > > > >> > > https://eur03.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fto > > ol > > > >> s.ietf.org%2Fhtml%2Fdraft-tgraf-ipfix-mpls-sr-label-type- > > > >> 04&data=3D0 > > > >> 2%7C01%7CThomas.Graf%40swisscom.com > > %7C1de9406dba0e422fa27508d836bb1ee2 > > > >> %7C364e5b87c1c7420d9beec35d19b557a1%7C1%7C0%7C63731952458891341 > > > >> 5&s > > > >> data=3DKVpjfCOYwZoJen3uAqID0sK%2FrWIujm4q7vDigug2%2B9A%3D&res > > > >> erved=3D0 > > > >> > > > >> at the spring working group at IETF 108 yesterday > > > >> > > > >> https://eur03.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F > > > >> %2Fwww > > . > > > >> ietf.org%2Fproceedings%2F108%2Fslides%2Fslides-108-spring-ip- > > > >> flow- > > > >> info > > > >> rmation-export-ipfix- > > > >> 00.pdf&data=3D02%7C01%7CThomas.Graf%40swisscom. > > > >> com%7C1de9406dba0e422fa27508d836bb1ee2%7C364e5b87c1c7420d9beec3 > > > >> 5d19b55=20 > > > >> 7a1%7C1%7C0%7C637319524588913415&sdata=3DU9jmYfa0Kxd7ewrOmAgB > > > >> poiFLFg > > > >> JkytxRvGCAX5egZs%3D&reserved=3D0 > > > >> > > > >> and today at OPSAWG where I call for adoption. > > > >> > > > >> This draft adds additional segment routing code points for in=20 > > > >> the IANA IPFIX registry for IS-IS, OPSFv2 and OPSF v3 and=20 > > > >> segment routing SID types to gain further insights into the=20 > > > >> MPLS-SR forwarding- plane. > > > >> > > > >> I have been asked to not only gather feedback from spring and=20 > > > >> opsawg but also from lsr and mpls working groups since these=20 > > > >> code points are related to link state routing protocols and=20 > > > >> mpls data plane. > > > >> > > > >> I am looking forward to your feedback and input. > > > >> > > > >> Best Wishes > > > >> > > > >> Thomas Graf > > > >> > > > >> > > > >> _______________________________________________ > > > >> mpls mailing list > > > >> mpls@ietf.org > > > >> https://eur03.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F > > > >> %2Fwww > > . > > > >> ietf.org > > %2Fmailman%2Flistinfo%2Fmpls&data=3D02%7C01%7CThomas.Graf%40 > > > >> swisscom.com > > %7C1de9406dba0e422fa27508d836bb1ee2%7C364e5b87c1c7420d9bee > > > >> c35d19b557a1%7C1%7C0%7C637319524588913415&sdata=3DRk6q0lYc3%2 > > > >> BZCF%2B > > > >> FaKjdEDB0hdvku7RkzsMLGPDLQ4y8%3D&reserved=3D0 > > > 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QW5kZXJzc29uICAgICAgICAgICAgICAgICAgICAgICAgZW1haWw6IGxvYUBwaS5udQ0KU2VuaW9y IE1QTFMgRXhwZXJ0ICAgICAgICAgICAgICAgICAgICAgICAgICBsb2EucGkubnVAZ21haWwuY29t DQpCcm9uemUgRHJhZ29uIENvbnN1bHRpbmcgICAgICAgICAgICAgcGhvbmU6ICs0NiA3MzkgODEg MjEgNjQNCg== From nobody Wed Aug 12 06:14:21 2020 Return-Path: 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 2D26A3A1289; Wed, 12 Aug 2020 06:14:20 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.332 X-Spam-Level: X-Spam-Status: No, score=-1.332 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, INVALID_MSGID=0.568, RCVD_IN_MSPIKE_H2=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=no 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 xV9-MF3JypJA; Wed, 12 Aug 2020 06:14:17 -0700 (PDT) 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nkgeml707-chm.china.huawei.com ([10.98.57.157]) with mapi id 15.01.1913.007; Wed, 12 Aug 2020 21:14:10 +0800 From: Tianran Zhou To: Thomas.Graf , iana-issues , Loa Andersson CC: mpls , opsawg Thread-Topic: [mpls] [IANA #1175554] Re: draft-tgraf-ipfix-mpls-sr-label-type Thread-Index: AQHWcIOAbwIfxyR2GUK3o++k9ONK9ak0c+fx Date: Wed, 12 Aug 2020 13:14:10 +0000 Message-ID: E458E6BF-E32E-4B9C-881F-4D67D50A7DD9 References: <1811130370.3403178.1595923899529@ss007565> <000862e2-a9c4-e6c9-5580-29fa06a9769e@pi.nu> <1248898123.1692458.1596779549400@ss002889> , <780006881.1120725.1597221183901@ss002890> In-Reply-To: <780006881.1120725.1597221183901@ss002890> Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: Content-Type: multipart/alternative; boundary="_000_E458E6BFE32E4B9C881F4D67D50A7DD9_" MIME-Version: 1.0 X-CFilter-Loop: Reflected Archived-At: Subject: Re: [mpls] [IANA #1175554] Re: draft-tgraf-ipfix-mpls-sr-label-type X-BeenThere: mpls@ietf.org 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zlp30486.vci.att.com (Service) with ESMTPS id AFC584009E6D; Wed, 12 Aug 2020 17:08:49 +0000 (GMT) Received: from GAALPA1MSGEX1DE.ITServices.sbc.com (135.50.89.118) by GAALPA1MSGEX1DE.ITServices.sbc.com (135.50.89.118) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2044.4; Wed, 12 Aug 2020 13:08:49 -0400 Received: from GAALPA1MSGEX1DE.ITServices.sbc.com ([135.50.89.118]) by GAALPA1MSGEX1DE.ITServices.sbc.com ([135.50.89.118]) with mapi id 15.01.2044.004; Wed, 12 Aug 2020 13:08:49 -0400 From: "BRUNGARD, DEBORAH A" To: "adrian@olddog.co.uk" , "'Loa Andersson'" , "'Eric Gray'" , "rtg-ads@ietf.org" CC: "rtg-dir@ietf.org" , "draft-ietf-mpls-spl-terminology.all@ietf.org" , "mpls@ietf.org" Thread-Topic: [mpls] Rtg-Dir Last Call review of draft-ietf-mpls-spl-terminology-02.txt Thread-Index: AdZvMBxWuouPPMQfQ3W+r62DdNiqAAAvVQwAAAZ6poAAMMCQwA== Date: Wed, 12 Aug 2020 17:08:49 +0000 Message-ID: References: <366be63f-7bc3-39a6-a2a2-de2d974982a5@pi.nu> <025601d66fe5$d5116810$7f343830$@olddog.co.uk> In-Reply-To: <025601d66fe5$d5116810$7f343830$@olddog.co.uk> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [130.10.150.18] x-tm-snts-smtp: 4C4FCA484E6A0C9D83CC0FA19730E9BDF70CB0002CC0B798E540058BA4DAFA1D2 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235, 18.0.687 definitions=2020-08-12_12:2020-08-11, 2020-08-12 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_policy_notspam policy=outbound_policy score=0 bulkscore=0 phishscore=0 mlxscore=0 priorityscore=1501 malwarescore=0 mlxlogscore=999 spamscore=0 suspectscore=0 clxscore=1011 impostorscore=0 adultscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2008120112 Archived-At: Subject: Re: [mpls] Rtg-Dir Last Call review of draft-ietf-mpls-spl-terminology-02.txt X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 12 Aug 2020 17:09:09 -0000 QWdyZWUgd2l0aCBMb2EncyBpbnRlcnByZXRhdGlvbiBvZiAidXBkYXRlIiBhbmQgQWRyaWFuJ3Ms IEkgZG9uJ3QgdGhpbmsgaXQgaXMgaGVscGZ1bCB0byBhIHJlYWRlciB0byBiZSBkaXJlY3RlZCB0 byByZWFkIGEgbG9uZyBzdHJpbmcgb2YgUkZDcyBieSB0aGlzIFJGQy4gT2YgY291cnNlLCB0aGUg SUVTRyBtYXkgcXVlc3Rpb24gKGFzIGhpc3RvcnkgaGFzIHNob3duKSBvdXIgZGVmaW5pdGlvbiwg YnV0IHRoaXMgaXMgY29uc2lzdGVudCB3aXRoIG91ciBhcHByb2FjaCBvbiBvdXIgUkZDcy4NCg0K VGhhbmtzIEVyaWMgZm9yIGRvdWJsZSBjaGVja2luZyAtIGFuZCB5b3VyIGNhcmVmdWwgcmV2aWV3 IQ0KRGVib3JhaA0KDQotLS0tLU9yaWdpbmFsIE1lc3NhZ2UtLS0tLQ0KRnJvbTogQWRyaWFuIEZh cnJlbCA8YWRyaWFuQG9sZGRvZy5jby51az4gDQpTZW50OiBUdWVzZGF5LCBBdWd1c3QgMTEsIDIw MjAgOTo0NyBBTQ0KVG86ICdMb2EgQW5kZXJzc29uJyA8bG9hQHBpLm51PjsgJ0VyaWMgR3JheScg 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eSwgdGhlIHR3byByYW5nZXMgYXJlIGtub3duIGFzIFNwZWNpYWwgUHVycG9zZSBMYWJlbHMNCiAg ICAgICAoU1BMKS4NCg0KVGhlIGNoYW5nZXMgaW4gdGhpcyBkcmFmdCBhbmQgUkZDIDcyNzQgYXJl IG5vdCBvdmVybGFwcGluZy4NCg0KL0xvYQ0KDQotLSANCg0KTG9hIEFuZGVyc3NvbiAgICAgICAg ICAgICAgICAgICAgICAgIGVtYWlsOiBsb2FAcGkubnUNClNlbmlvciBNUExTIEV4cGVydCAgICAg ICAgICAgICAgICAgICAgICAgICAgbG9hLnBpLm51QGdtYWlsLmNvbQ0KQnJvbnplIERyYWdvbiBD b25zdWx0aW5nICAgICAgICAgICAgIHBob25lOiArNDYgNzM5IDgxIDIxIDY0DQoNCg== From nobody Wed Aug 12 11:10:42 2020 Return-Path: X-Original-To: mpls@ietf.org Delivered-To: mpls@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 356FA3A0857; Wed, 12 Aug 2020 11:10:36 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: mpls@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 7.13.0 Auto-Submitted: auto-generated Precedence: bulk Reply-To: mpls@ietf.org Message-ID: <159725583614.16651.1579538824341133991@ietfa.amsl.com> Date: Wed, 12 Aug 2020 11:10:36 -0700 Archived-At: Subject: [mpls] I-D Action: draft-ietf-mpls-spl-terminology-03.txt X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 12 Aug 2020 18:10:36 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Multiprotocol Label Switching WG of the IETF. Title : Special Purpose Label terminology Authors : Loa Andersson Kireeti Kompella Adrian Farrel Filename : draft-ietf-mpls-spl-terminology-03.txt Pages : 6 Date : 2020-08-12 Abstract: This document discusses and recommends a terminology that may be used when MPLS Special Purpose Labels (SPL) are specified and documented. This document updates RFC 7274 and RFC 3032. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-mpls-spl-terminology/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-mpls-spl-terminology-03 https://datatracker.ietf.org/doc/html/draft-ietf-mpls-spl-terminology-03 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-mpls-spl-terminology-03 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Wed Aug 12 11:21:26 2020 Return-Path: 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 9CDFD3A14BC; Wed, 12 Aug 2020 11:21:24 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.846 X-Spam-Level: X-Spam-Status: No, score=-2.846 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, NICE_REPLY_A=-0.949, SPF_HELO_NONE=0.001, SPF_NONE=0.001, URIBL_BLOCKED=0.001] autolearn=unavailable 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 xfAKY-B8neQk; Wed, 12 Aug 2020 11:21:21 -0700 (PDT) Received: from pipi.pi.nu (pipi.pi.nu [83.168.239.141]) (using TLSv1.1 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id EE11C3A14B8; Wed, 12 Aug 2020 11:21:20 -0700 (PDT) Received: from [192.168.1.19] (unknown [122.2.101.80]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: loa@pi.nu) by pipi.pi.nu (Postfix) with ESMTPSA id 025A5327697; Wed, 12 Aug 2020 20:21:16 +0200 (CEST) To: "BRUNGARD, DEBORAH A" , "adrian@olddog.co.uk" , 'Eric Gray' , "rtg-ads@ietf.org" Cc: "rtg-dir@ietf.org" , "draft-ietf-mpls-spl-terminology.all@ietf.org" , "mpls@ietf.org" References: <366be63f-7bc3-39a6-a2a2-de2d974982a5@pi.nu> <025601d66fe5$d5116810$7f343830$@olddog.co.uk> From: Loa Andersson Message-ID: <7d5c049a-68db-51cc-b79b-0f4388dd6041@pi.nu> Date: Thu, 13 Aug 2020 02:21:10 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Archived-At: Subject: Re: [mpls] [RTG-DIR] Rtg-Dir Last Call review of draft-ietf-mpls-spl-terminology-02.txt X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 12 Aug 2020 18:21:25 -0000 Deborah, I have posted version -03, it should be ready for IETF Last Call. https://datatracker.ietf.org/doc/draft-ietf-mpls-spl-terminology/ /Loa On 13/08/2020 01:08, BRUNGARD, DEBORAH A wrote: > Agree with Loa's interpretation of "update" and Adrian's, I don't think it is helpful to a reader to be directed to read a long string of RFCs by this RFC. Of course, the IESG may question (as history has shown) our definition, but this is consistent with our approach on our RFCs. > > Thanks Eric for double checking - and your careful review! > Deborah > > -----Original Message----- > From: Adrian Farrel > Sent: Tuesday, August 11, 2020 9:47 AM > To: 'Loa Andersson' ; 'Eric Gray' ; rtg-ads@ietf.org > Cc: rtg-dir@ietf.org; draft-ietf-mpls-spl-terminology.all@ietf.org; mpls@ietf.org > Subject: RE: [mpls] Rtg-Dir Last Call review of draft-ietf-mpls-spl-terminology-02.txt > > So I understand Eric's point about updates of updates. > > We're updating 7274, and 7274 updated , so surely we are updating as well. > > What Loa says is that we are not updating the bit of 7274 that updated . He's right about that, but it is maybe not such a strong point. After all, someone directed from to read 7274 might miss the wider material. > > But I think that historically (Deborah to confirm) "updates" is only used for direct updating. That is, the reader is expected to walk through the chain of documents by finding " is updated by 7274" and also finding "7274 is updated by [This.I-D]". > > (This might all be different if we were obsoleting 7274, but we're not 😊) > > A > -----Original Message----- > From: Loa Andersson > Sent: 11 August 2020 11:41 > To: Eric Gray ; rtg-ads@ietf.org > Cc: rtg-dir@ietf.org; draft-ietf-mpls-spl-terminology.all@ietf.org; mpls@ietf.org > Subject: Re: [mpls] Rtg-Dir Last Call review of draft-ietf-mpls-spl-terminology-02.txt > > Eric, > > Tnx for comments, very useful. > > I will await instructions from Deborah and the post an updated version. > Most of your are straightforward and will be updated as you suggest. > > Two small comments below. > > On 11/08/2020 00:53, Eric Gray wrote: > > The duplication of RFC 3202 is a typo. > > As what update what in: >> Note: I am not sure, but this may be more than a Nit - if, for instance, the intention was to list a different RFC. The paragraph claims the draft updates RFC 7274 and RFC 3032 - but RFC 7274 claims to update RFC 3038, RFC 3209, RFC 3811, RFC 4182, RFC 4928, RFC 5331, RFC 5586, RFC 5921, RFC 5960, RFC 6391, RFC 6478, and RFC 6790 as well. > > What RFC 7274 does to the listed RFCs is to rename them from "Resereved > Labels" to "Special Purpose Labels" > > The terminology draft aligns with this. First bullet in in Section 3 > says: > > > o Collectively, the two ranges are known as Special Purpose Labels > (SPL). > > The changes in this draft and RFC 7274 are not overlapping. > > /Loa > -- Loa Andersson email: loa@pi.nu Senior MPLS Expert loa.pi.nu@gmail.com Bronze Dragon Consulting phone: +46 739 81 21 64 From nobody Wed Aug 12 11:48:24 2020 Return-Path: X-Original-To: mpls@ietf.org Delivered-To: mpls@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id C8A383A0A52; Wed, 12 Aug 2020 11:48:16 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: The IESG To: "IETF-Announce" X-Test-IDTracker: no X-IETF-IDTracker: 7.13.0 Auto-Submitted: auto-generated Precedence: bulk CC: mpls@ietf.org, Nicolai Leymann , mpls-chairs@ietf.org, draft-ietf-mpls-spl-terminology@ietf.org, db3546@att.com, n.leymann@telekom.de Reply-To: last-call@ietf.org Sender: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-ID: <159725809676.26545.11479682416116858436@ietfa.amsl.com> Date: Wed, 12 Aug 2020 11:48:16 -0700 Archived-At: Subject: [mpls] Last Call: (Special Purpose Label terminology) to Informational RFC X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 12 Aug 2020 18:48:22 -0000 The IESG has received a request from the Multiprotocol Label Switching WG (mpls) to consider the following document: - 'Special Purpose Label terminology' as Informational RFC The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the last-call@ietf.org mailing lists by 2020-08-26. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract This document discusses and recommends a terminology that may be used when MPLS Special Purpose Labels (SPL) are specified and documented. This document updates RFC 7274 and RFC 3032. The file can be obtained via https://datatracker.ietf.org/doc/draft-ietf-mpls-spl-terminology/ No IPR declarations have been submitted directly on this I-D. From nobody Wed Aug 12 12:04:04 2020 Return-Path: X-Original-To: mpls@ietf.org Delivered-To: mpls@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 2AD913A07DD; Wed, 12 Aug 2020 12:04:02 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: mpls@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 7.13.0 Auto-Submitted: auto-generated Precedence: bulk Reply-To: mpls@ietf.org Message-ID: <159725904213.26648.126814241500726999@ietfa.amsl.com> Date: Wed, 12 Aug 2020 12:04:02 -0700 Archived-At: Subject: [mpls] I-D Action: draft-ietf-mpls-rmr-13.txt X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 12 Aug 2020 19:04:02 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Multiprotocol Label Switching WG of the IETF. Title : Resilient MPLS Rings Authors : Kireeti Kompella Luis M. Contreras Filename : draft-ietf-mpls-rmr-13.txt Pages : 20 Date : 2020-08-12 Abstract: This document describes the use of the MPLS control and data planes on ring topologies. It describes the special nature of rings, and proceeds to show how MPLS can be effectively used in such topologies. It describes how MPLS rings are configured, auto-discovered and signaled, as well as how the data plane works. Companion documents describe the details of discovery and signaling for specific protocols. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-mpls-rmr/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-mpls-rmr-13 https://datatracker.ietf.org/doc/html/draft-ietf-mpls-rmr-13 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-mpls-rmr-13 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Fri Aug 14 04:45:15 2020 Return-Path: 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 9283D3A0FB7; Fri, 14 Aug 2020 04:45:09 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.901 X-Spam-Level: X-Spam-Status: No, score=-1.901 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_MSPIKE_H2=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=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 YP2WtV2SuKIK; Fri, 14 Aug 2020 04:45:06 -0700 (PDT) Received: from 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definitions=main-2008140122 Archived-At: Subject: Re: [mpls] [netmod] [Technical Errata Reported] RFC8349 (6251) X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 14 Aug 2020 16:25:02 -0000 SGkgQWNlZSBhbmQgVG9tLA0KDQpUaGUgYXV0aG9ycyBvZiBJRDogZHJhZnQtaWV0Zi1tcGxzLWJh c2UteWFuZyBtZXQgYW5kIHdlIGRpc2N1c3NlZCB0aGUgcG9pbnRzIGJlbG93Lg0KV2UgdW5kZXJz dGFuZCB0aGF0IFJGQzgzNDkgZGVmaW5lcyBhbiBBRi1hZ25vc3RpYyBtb2RlbCBmb3IgUklCcy4g UkZDODM0OSBkZWZpbmVkIG9ubHkgdHdvIHR5cGVzIG9mIFJJQnMgKElQdjQgYW5kIElQdjYgUklC cyksIGJ1dCB3ZSBlbnZpc2lvbiBvdGhlciB0eXBlcyBvZiBSSUJzIHRvbyAoZS5nLiBMMiBSSUIs IE1DQVNUIFJJQiwgZXRjLiksIGluIGFkZGl0aW9uIHRvIE1QTFMgUklCIC0tIGFuZCB3ZSBob3Bl IGFsbCBzdWNoIFJJQnMgaW5kZWVkIGxldmVyYWdlIHRoZSBnZW5lcmljIFJJQiBtb2RlbCBpbnRy b2R1Y2VkIGluIFJGQzgzNDkuDQoNCldlIHJldmlzaXRlZCBBY2VlJ3Mgc3VnZ2VzdGlvbiBhbmQg 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"yingzhen.qu@huawei.com" , "warren@kumari.net" CC: "mpls@ietf.org" , "netconf-chairs@ietf.org" , "netmod@ietf.org" , "draft-ietf-mpls-base-yang@ietf.org" Thread-Topic: [mpls] [netmod] [Technical Errata Reported] RFC8349 (6251) Thread-Index: ATZGODQ52tQp0fd7F9nedWp1jblzOsBYQAB1 X-MS-Exchange-MessageSentRepresentingType: 1 Date: Fri, 14 Aug 2020 16:30:22 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-Exchange-Organization-SCL: -1 X-MS-TNEF-Correlator: X-MS-Exchange-Organization-RecordReviewCfmType: 0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Subject: Re: [mpls] [netmod] [Technical Errata Reported] RFC8349 (6251) X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 14 Aug 2020 16:30:27 -0000 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296a4886-708c-48a4-7dea-08d84070d7b8 X-MS-Exchange-CrossTenant-originalarrivaltime: 14 Aug 2020 16:41:07.1686 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: cf8853ed-96e5-465b-9185-806bfe185e30 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: Hcx1uRSt8/4KvsNnltw5zVd1t8/PZI3S1TpQsUrzUJmKOocKBt2YPWvKaCzEYuWM0Sh0X2R3MH80zxE5lHQHNQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM5PR0701MB2836 Archived-At: Subject: Re: [mpls] [netmod] [Technical Errata Reported] RFC8349 (6251) X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 14 Aug 2020 16:41:14 -0000 RnJvbTogVGFyZWsgU2FhZCA8dHNhYWQubmV0QGdtYWlsLmNvbT4KU2VudDogMTQgQXVndXN0IDIw MjAgMTc6MzAKClRoYW5rcyBBY2VlLiBZZXMsIHdpbGwgZG8gaW4gdGhlIG5leHQgcmV2IHdlJ2xs 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Aug 2020 21:50:22 +0000 From: Yingzhen Qu To: Tarek Saad , "Acee Lindem (acee)" , tom petch , "Rob Wilton (rwilton)" , RFC Errata System , "lhotka@nic.cz" , "warren@kumari.net" CC: "netmod@ietf.org" , "netconf-chairs@ietf.org" , "mpls@ietf.org" , "draft-ietf-mpls-base-yang@ietf.org" Thread-Topic: [netmod] [Technical Errata Reported] RFC8349 (6251) Thread-Index: AQHWbNHrhqiBIPGYiEaRZv8YdwtkIqkxjfoAgAAg14CAAA/xAIAAD+gAgADS7oCAAA2mAIAABjiAgAAx8wCABO29AP//5a2A Date: Fri, 14 Aug 2020 21:50:22 +0000 Message-ID: <48170592-C35F-45AF-8BC5-8FE1231731CD@futurewei.com> References: <20200807154534.98486F4074B@rfc-editor.org> <3073B02B-7413-4C00-ACF1-CA2679C0C949@cisco.com> <57AAC8FB-65D7-40D9-BFE7-B16A7F680C0E@juniper.net> <24CD45FE-939A-4B51-9149-BE8487D5E026@cisco.com> <37DAF157-AC7E-4110-BA8A-EF048821A083@juniper.net> In-Reply-To: <37DAF157-AC7E-4110-BA8A-EF048821A083@juniper.net> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: msip_labels: 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Internal X-MS-Exchange-CrossTenant-AuthSource: BY5PR13MB3048.namprd13.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 501fffe6-4664-42ab-2625-08d8409c0b7f X-MS-Exchange-CrossTenant-originalarrivaltime: 14 Aug 2020 21:50:22.3184 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 0fee8ff2-a3b2-4018-9c75-3a1d5591fedc X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: LcMmvQ3boMQcEz7Mgn6UKEWUXZftCtm8q2LAomsNxCt7zOAWPjV6Lfz0QFPLSpzmjzZNuyrbOblpxlYsjmM29w== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR13MB2405 Archived-At: Subject: Re: [mpls] [netmod] [Technical Errata Reported] RFC8349 (6251) X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 14 Aug 2020 21:50:34 -0000 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2020 Return-Path: X-Original-To: mpls@ietf.org Delivered-To: mpls@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id AB2213A0B2A; Sat, 15 Aug 2020 16:38:38 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Joel Jaeggli via Datatracker To: Cc: last-call@ietf.org, draft-ietf-mpls-spl-terminology.all@ietf.org, mpls@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 7.14.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <159753471865.9394.4452864346361981699@ietfa.amsl.com> Reply-To: Joel Jaeggli Date: Sat, 15 Aug 2020 16:38:38 -0700 Archived-At: Subject: [mpls] Opsdir last call review of draft-ietf-mpls-spl-terminology-03 X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 15 Aug 2020 23:38:39 -0000 Reviewer: Joel Jaeggli Review result: Ready I have reviewed this document on behalf of the Operations and Management Directorate. This document clarifies RFC 7274 terminology and applies those clarifications to the IANA registry impacted by the clarification. It poses no operational or implementation issues for users of MPLS special purpose labels From nobody Sat Aug 15 16:38:56 2020 Return-Path: X-Original-To: mpls@ietf.org Delivered-To: mpls@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id ABB3F3A0B2F; Sat, 15 Aug 2020 16:38:38 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Joel Jaeggli via Datatracker To: Cc: last-call@ietf.org, draft-ietf-mpls-spl-terminology.all@ietf.org, mpls@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 7.14.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <159753471867.12328.7045356232031876170@ietfa.amsl.com> Reply-To: Joel Jaeggli Date: Sat, 15 Aug 2020 16:38:38 -0700 Archived-At: Subject: [mpls] Opsdir last call review of draft-ietf-mpls-spl-terminology-03 X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 15 Aug 2020 23:38:39 -0000 Reviewer: Joel Jaeggli Review result: Ready I have reviewed this document on behalf of the Operations and Management Directorate. This document clarifies RFC 7274 terminology and applies those clarifications to the IANA registry impacted by the clarification. It poses no operational or implementation issues for users of MPLS special purpose labels From nobody Sun Aug 16 15:05:04 2020 Return-Path: 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 BEA333A11CB; Sun, 16 Aug 2020 15:05:02 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.097 X-Spam-Level: X-Spam-Status: No, score=-2.097 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, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.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 r1FhIil7zX_H; Sun, 16 Aug 2020 15:05:01 -0700 (PDT) Received: from mail-qt1-x82a.google.com (mail-qt1-x82a.google.com [IPv6:2607:f8b0:4864:20::82a]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 190BA3A11C9; Sun, 16 Aug 2020 15:05:01 -0700 (PDT) Received: by mail-qt1-x82a.google.com with SMTP id s23so11069649qtq.12; Sun, 16 Aug 2020 15:05:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:thread-topic:thread-index:date:message-id :references:in-reply-to:accept-language:content-language :mime-version; bh=as5Ku2BHkD7Gh1noT03m0YJMjP+vWQWRo6ozkKhXIw4=; b=twzI9ARLrOWnNQx8FHCvW+zu2A7M9BbKJnQ2voGAQil26eWSwv1yW14R6N30EvHfwU dB5XN76hr5sTSav2YGD0jkbN8A3LmYHc4V3ZPyfdIFXRodnuB1Deg3Du/dQSu1oYRGo2 x9pazIsCEeTzU5qpZtwvtAxDWL3iyoIKqF2aAVfU+0y0WKsFy/gqBeUNJliFOqyII99N nXDLkWdCsxh+IP7QPeiK6E32kfDo1D6mg8djPeDeZtL151UgiZUK8JsuNDWrIJ32jcs7 jkJspTpZw0lVIGhNefRQCv33iAJg3hz6yk6NSjHEhEN4nRElvPyZvLRj6fimspbJoAOH Uo+g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:thread-topic:thread-index :date:message-id:references:in-reply-to:accept-language :content-language:mime-version; bh=as5Ku2BHkD7Gh1noT03m0YJMjP+vWQWRo6ozkKhXIw4=; b=dcQ8WP61i5ClsqMcBk93tjbJWpgkXU+CpKU2EmP/42RWmNXJD6ZRfvPH4BdCdL6woL feJwd4v0JoOq0jK/9x9BjH4St7hiyjqXtA48D5Ie0VaTXxX1yvs36FJtLk1BtRYwtiWY /UlhfY0M8qEc9cPQnM8DDsG2PmjIznEH0DAGK76zqEDHEC8Uw+fnqeyts8UdDgWRxzSN ds7U+czjvHKx1weV/jWQ72oVPhVmfD8Fzde+o/K+KUisz3kW+1/QX2r7o76K/6PxRJwt g2fURGk0msHet3WSWbF2UgYN1IhLjgPE8Af9HjJSgsFMu/2xAWwlWnE2rIqLH/09suXb noLw== X-Gm-Message-State: AOAM530ee3yQ34hP5TCyXmknRrFKS38pjMI+lLnmvJJINtVJhsbGZFol VA0v/OfvZ9vH2QIXaDkW9KY= X-Google-Smtp-Source: ABdhPJxl6fH/52CWS0uzCAzbmPiixVlYlQcO+ZNvhWtvFTDYVbR0ucErG5kaMpIxk6n6YnYHw7N+qg== X-Received: by 2002:ac8:d4e:: with SMTP id r14mr10516593qti.325.1597615500135; Sun, 16 Aug 2020 15:05:00 -0700 (PDT) Received: from DM5PR1901MB2150.namprd19.prod.outlook.com ([2603:1036:4:9e::5]) by smtp.gmail.com with ESMTPSA id o187sm14844985qkf.14.2020.08.16.15.04.58 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sun, 16 Aug 2020 15:04:59 -0700 (PDT) From: Tarek Saad To: Greg Mirsky CC: mpls , "mpls-chairs@ietf.org" Thread-Topic: [mpls] IETF 108 MPLS WG Meeting Minutes Thread-Index: ATBDNTEwkenQTmfnz555jtl2LPybOUErTCtMylhty/k= X-MS-Exchange-MessageSentRepresentingType: 1 Date: Sun, 16 Aug 2020 22:04:58 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-Exchange-Organization-SCL: -1 X-MS-TNEF-Correlator: X-MS-Exchange-Organization-RecordReviewCfmType: 0 Content-Type: multipart/alternative; boundary="_000_DM5PR1901MB21508FEDD3DE8D96ABEA85B2FC5E0DM5PR1901MB2150_" MIME-Version: 1.0 Archived-At: Subject: Re: [mpls] IETF 108 MPLS WG Meeting Minutes X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 16 Aug 2020 22:05:03 -0000 --_000_DM5PR1901MB21508FEDD3DE8D96ABEA85B2FC5E0DM5PR1901MB2150_ Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Thank you Greg. I=92ve addressed the nits and uploaded an update to the min= utes. https://codimd.ietf.org/s/notes-ietf-108-mpls https://www.ietf.org/proceedings/108/minutes/minutes-108-mpls-01 Regards, Tarek From: Greg Mirsky Date: Monday, August 3, 2020 at 4:34 PM To: Tarek Saad Cc: mpls , "mpls-chairs@ietf.org" Subject: Re: [mpls] IETF 108 MPLS WG Meeting Minutes Hi Tarek, Mach, et al., thank you for the great notes that accurately reflect all discussions. I've= noticed several nits that may be fixed: OLD TEXT: Kireeti promises to work on the revison in coming week. NEW TEXT: Kireeti promises to work on the revision in the coming week. s/remainded/remained/ s/Donald volunteer/Donald volunteered/ s/indidcator lable/indicator label/ Regards, Greg On Mon, Aug 3, 2020 at 6:55 AM Tarek Saad > wrote: The recorded minutes for the MPLS WG session during IETF 108 are now upload= ed at: https://codimd.ietf.org/s/notes-ietf-108-mpls or https://www.ietf.org/proceedings/108/minutes/minutes-108-mpls-01 Please let us know if there are any changes required.. Thanks to Mach/others who helped taking in the notes.. Regards, Tarek (for MPLS WG chairs) _______________________________________________ mpls mailing list mpls@ietf.org https://www.ietf.org/mailman/listinfo/mpls --_000_DM5PR1901MB21508FEDD3DE8D96ABEA85B2FC5E0DM5PR1901MB2150_ Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable

Thank you Greg. I= =92ve addressed the nits and uploaded an update to the minutes.<= /span>

https://codimd.ietf.org/s/notes-ietf-108-mpls

https://www.ietf.= org/proceedings/108/minutes/minutes-108-mpls-01

 

Regards,=

Tarek   <= o:p>

 

From: Greg Mirsky <gre= gimirsky@gmail.com>
Date: Monday, August 3, 2020 at 4:34 PM
To: Tarek Saad <tsaad.net@gmail.com>
Cc: mpls <mpls@ietf.org>, "mpls-chairs@ietf.org" <= ;mpls-chairs@ietf.org>
Subject: Re: [mpls] IETF 108 MPLS WG Meeting Minutes

 

Hi Tarek, Mach, et al.,

thank you for the great n= otes that accurately reflect all discussions. I've noticed several nits tha= t may be fixed:

OLD TEXT:

Kireeti promises to work = on the revison in coming week.

NEW TEXT:

Kireeti promises to work = on the revision in the coming week.

 

s/remainded/remained/

s/Donald volunteer/Donald= volunteered/

s/indidcator lable/indica= tor label/

 

Regards,

Greg

 

 

On Mon, Aug 3, 2020 at 6:= 55 AM Tarek Saad <tsaad.net@gmail= .com> wrote:

The recorded minutes for the MPLS WG session during IETF 108 are now upload= ed at:

https://codimd.ietf.org/s/notes-ietf-108-mpls

or

https://www.ietf.org/proceedings/108/minutes/minutes-10= 8-mpls-01

Please let us know if there are any changes required..

Thanks to Mach/others who helped taking in the notes..

 

Regards,

Tarek (for MPLS WG chairs)

 

 

 

 

_________________________= ______________________
mpls mailing list
mpls@ietf.org
ht= tps://www.ietf.org/mailman/listinfo/mpls

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localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A5DD73A10DB; Mon, 17 Aug 2020 08:29:41 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.896 X-Spam-Level: X-Spam-Status: No, score=-1.896 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HTML_MESSAGE=0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=amazonses.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 eLWlTNcNUTC3; Mon, 17 Aug 2020 08:29:38 -0700 (PDT) Received: from a48-92.smtp-out.amazonses.com (a48-92.smtp-out.amazonses.com [54.240.48.92]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id E3E223A0CE7; Mon, 17 Aug 2020 08:29:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/simple; s=224i4yxa5dv7c2xz3womw6peuasteono; d=amazonses.com; t=1597678176; h=From:Message-Id:Content-Type:Mime-Version:Subject:Date:In-Reply-To:Cc:To:References:Feedback-ID; bh=jp/IqUD1SxauJ5SegAUEwJkRwJ8eczHqP3jGFzfuDgQ=; b=XkoMUtpVGOB+2vE6p/ava0rP8x0X0RpO4exBRbBA1NXiwJBvyt8Ia/vZIOBCEOlr VL+MegLT+CxBCUBfdFzytDxXe+tzusTNe71hHi8e3MQNlIRrIRudsJCTXnQK5BqApnb bykgYtMRrMYS5gHgbVqAQWEs/y43F9Hym0lCICk8= From: Kent Watsen Message-ID: <01000173fd0a49bd-85b9ecbf-024c-40e5-8188-53f977821db1-000000@email.amazonses.com> Content-Type: multipart/alternative; boundary="Apple-Mail=_2ABA6947-AE24-447D-85AF-BF27B1D483CA" Mime-Version: 1.0 (Mac OS X Mail 13.4 \(3608.80.23.2.2\)) Date: Mon, 17 Aug 2020 15:29:36 +0000 In-Reply-To: Cc: "Acee Lindem (acee)" , Tarek Saad , "Rob Wilton (rwilton)" , Ladislav Lhotka , "yingzhen.qu@huawei.com" , "warren@kumari.net" , "mpls@ietf.org" , "netmod@ietf.org" To: tom petch References: <20200807154534.98486F4074B@rfc-editor.org> <3073B02B-7413-4C00-ACF1-CA2679C0C949@cisco.com> <57AAC8FB-65D7-40D9-BFE7-B16A7F680C0E@juniper.net> <24CD45FE-939A-4B51-9149-BE8487D5E026@cisco.com> X-Mailer: Apple Mail (2.3608.80.23.2.2) X-SES-Outgoing: 2020.08.17-54.240.48.92 Feedback-ID: 1.us-east-1.DKmIRZFhhsBhtmFMNikgwZUWVrODEw9qVcPhqJEI2DA=:AmazonSES Archived-At: Subject: Re: [mpls] [netmod] [Technical Errata Reported] RFC8349 (6251) X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 17 Aug 2020 15:29:42 -0000 --Apple-Mail=_2ABA6947-AE24-447D-85AF-BF27B1D483CA Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Folks, Many messages for this thread are being blocked by the list server, = requiring manual effort by the chairs to release them. Here are the = headers from one such message: To: Tarek Saad , tom petch , = "Rob Wilton (rwilton)" , RFC Errata System , "lhotka@nic.cz" , "yingzhen.qu@huawei.com" , "warren@kumari.net" CC: "netmod@ietf.org" , "netconf-chairs@ietf.org" , "mpls@ietf.org" , "draft-ietf-mpls-base-yang@ietf.org" = At a minimum, I suggest removing rfc-editor@rfc-editor.org and = netconf-chairs@ietf.org in your next Reply-All. Thanks! PS: I=E2=80=99ll release the messages stuck in the queue now. Kent Pending posts: From: tsaad@juniper.net on Fri Aug 14 = 09:25:03 2020 Subject: Re: [netmod] [Technical Errata Reported] RFC8349 (6251) Cause: Too many recipients to the message From: acee@cisco.com on Fri Aug 14 09:27:16 2020 Subject: Re: [netmod] [Technical Errata Reported] RFC8349 (6251) Cause: Too many recipients to the message From: acee@cisco.com on Fri Aug 14 09:29:05 2020 Subject: Re: [mpls] [netmod] [Technical Errata Reported] RFC8349 (6251) Cause: Too many recipients to the message From: tsaad.net@gmail.com on Fri Aug 14 = 09:30:28 2020 Subject: Re: [mpls] [netmod] [Technical Errata Reported] RFC8349 (6251) Cause: Too many recipients to the message From: ietfc@btconnect.com on Fri Aug 14 = 09:41:14 2020 Subject: Re: [mpls] [netmod] [Technical Errata Reported] RFC8349 (6251) Cause: Too many recipients to the message From: rwilton@cisco.com on Fri Aug 14 = 10:38:23 2020 Subject: RE: [mpls] [netmod] [Technical Errata Reported] RFC8349 (6251) Cause: Too many recipients to the message K. > On Aug 14, 2020, at 7:45 AM, tom petch wrote: >=20 > From: Acee Lindem (acee) > > Sent: 11 August 2020 14:08 >=20 > Hi Tom, Draft Authors, >=20 > The draft could easily be fixed. You just need to: >=20 > 1. Expand on the single sentence in section 2.1 on the need for = non-IP MPLS routes. Given that the draft wasn't modeled correctly, this = wasn't apparent to most of the reviewers. > 2. Add an MPLS AF only augmentation (enforced via a when statement) = to each route for the MPLS AF specific destination-prefix or = destination-address. > 3. Limit the current local-label augmentation to non-MPLS AFs. > 4. Limit the active-route augmentation to AF MPLS and change the = input to destination-address. >=20 > > 'easily' mmm... I have been getting my mind around this and see what = Acee means and agree. The I-D specifies an MPLS address family but then = does not create the RIB entries for it in the way that e.g. IPv4 unicast = does in RFC8349. Easy may be but quite a change Another option, again = a significant change, would be to cater only for IP address family with = MPLS and drop the MPLS address family. Either way, whatever the authors = decide, I cannot personally see this falling within the scope or an = Erratum or for the IETF Last Call to complete in a week's time. >=20 > I have dropped the RFC Editor and netconf-chairs pro tem >=20 > Tom Petch >=20 > Thanks, > Acee >=20 > =EF=BB=BFOn 8/11/20, 6:10 AM, "tom petch" wrote: >=20 > From: Acee Lindem (acee) > Sent: 11 August 2020 10:47 >=20 > Hi Tom, > I fully understood your original comment. There are other problems = with this model. See inline. >=20 > On 8/11/20, 4:59 AM, "tom petch" wrote: >=20 > Tarek >=20 > Picking up on an earlier point, >=20 > ________________________________________ > From: Tarek Saad > Sent: 10 August 2020 21:23 >=20 > Hi Acee, >=20 > The existing RPC is used to query (defined AFIs=3DIPv4/IPv6) = RIB to return the matching active route identified by a "destination = address". > The MPLS module is trying to reuse this RPC so to query the = MPLS RIB to return the matching active route identified by a "local = label". > The RPC defined in RFC 8349 readily accepts MPLS AFI in it = (/rt:routing/rt:ribs/rt:rib/rt:active-route) - unless we augment and = suppress it with a "when check". > IMO, it is reusable as-is but the text below is limiting the = leaf name that identifies an entry in RIB to "destination-address" only = - in MPLS RIB the entry leaf name that identifies an entry is = "local-label". >=20 > It is not reusable as is since the augmentation RPC augmentation = must have a when statement restricting it to AF MPLS. Also, local-label = is a leaf which is applicable to all address families. It cannot be the = AF MPLS destination-prefix. This augmentation is missing. >=20 > > I am probably getting out of my depth here, On 1may20 I raised the = issue of why the 'MUST' in the description in RFC8349 was not enforced = in the YANG and 5may20 Martin explained that there is a rule in the YANG = ABNF of input-stmt that makes the obvious impossible:-( You are raising = more profound issues about the RIB that I had not perceived when I = reviewed mpls-base-yang for which I, and I hope everyone else, will be = grateful. >=20 > If this mpls I-D is to proceed in the immediate future, it looks = like the action may have to be deferred for future study. >=20 > More generally, I think that the interaction of forward by address = and forward by label is challenging. When first I looked at the MPLS = I-D I was surprised at the way RFC8349 was augmented. I had not seen = MPLS as an alternative to IPv4 or IPv6 or ... in the way in which the = RFC is used although the RFC does state that it can be; rather, to me, = labels are a different animal, but I assumed that everyone knew what = they were doing. >=20 > Tom Petch >=20 >=20 > Thanks, > Acee >=20 >=20 > > There should be a 'when' check to enforce the 'MUST' but the = rules of YANG do not allow it in this structure. I raised this on the = NETMOD list at the time of WGLC and Martin pointed me to a rule in the = ABNF which prohibits such a check. He also said that the rule was not = needed and would be a candidate to remove when YANG is revised. >=20 > Hence I have always thought of this MUST in the documentation = as a constraint that must be enforced in the YANG >=20 > Tom Petch >> action active-route { >> description >> "Return the active RIB route that is used for the >> destination address. >>=20 >> Address-family-specific modules MUST augment input >> parameters with a leaf named 'destination-address'."; >=20 > Regards, > Tarek >=20 > On 8/10/20, 3:27 PM, "Acee Lindem (acee)" = wrote: >=20 > [External Email. Be cautious of content] >=20 >=20 > All (Speaking as an author of RFC 8349), > I just looked at this in more detail and I don't think the = ietf-mpls.yang model should be augmenting the = /rt:routing/rt:ribs/rt:rib/rt:active-route RPC. The intent of the RPC is = to return the address-family specific active-route corresponding to the = destination-address. This model attempts to overload this RPC with a = different action all together - returning a route that has the = local-label as an optional attribute. I'd reject the Errata and believe = the augmentation should be removed from ietf-mpl.yang. Whether it is = replaced with a different one is up to the co-authors of ietf-mpls.yang. > Thanks, > Acee >=20 > On 8/10/20, 2:29 PM, "Rob Wilton (rwilton)" = wrote: >=20 > [Resend to hopefully pass recipient limit filter] >=20 > Hi Tom, >=20 > I would be interested to hear from the original = authors. >=20 > My impression is that this is a technically reasonable = change, but I don't think that an erratum can create a new revision of a = YANG module. >=20 > If this erratum was processed as "Hold for document = update" then would that be sufficient to do the right thing in the MPLS = YANG module? >=20 > Regards, > Rob >=20 >=20 >> -----Original Message----- >> From: tom petch >> Sent: 10 August 2020 17:32 >> To: RFC Errata System ; lhotka@nic.cz; = Acee >> Lindem (acee) ; yingzhen.qu@huawei.com; = warren@kumari.net; >> Rob Wilton (rwilton) ; joelja@bogus.com; >> kent+ietf@watsen.net; lberger@labn.net >> Cc: tsaad@juniper.net; netmod@ietf.org >> Subject: Re: [netmod] [Technical Errata Reported] RFC8349 (6251) >>=20 >> From: netmod on behalf of RFC Errata System >> >> Sent: 07 August 2020 16:45 >>=20 >> >> This is the erratum of whose arrival I speculated on this list on = June >> 16th. >>=20 >> There is a degree of urgency about it. The I-D in question is = mpls-base- >> yang, currently in IETF Last Call, which is a Normative dependency of = bfd- >> yang which is a Normative dependency for a small mountain of I-D = which >> have been waiting a year or so (e.g. ospf-yang). >>=20 >> I suspect that the technically perfect solution would involve a YANG >> union, choice or some such structure but as I said in my Last Call = comment >> I can live with a label that contains such as 'address' encompassing = such >> as 'label' in the context of forwarding. I take labels to mean what >> labels mean rather than what I might find in a work of reference. >>=20 >> Tom Petch >>=20 >> The following errata report has been submitted for RFC8349, >> "A YANG Data Model for Routing Management (NMDA Version)". >>=20 >> -------------------------------------- >> You may review the report below and at: >> = https://urldefense.com/v3/__https://www.rfc-editor.org/errata/eid6251__;!!= NEt6yMaO-gk!URK5WVsqD5g7WpzCU1VuzKJA0AUiawXBFLB_gENlsYMrpiMqDtyFoxw8DnSr2A= $ >>=20 >> -------------------------------------- >> Type: Technical >> Reported by: Tarek Saad >>=20 >> Section: 7 >>=20 >> Original Text >> ------------- >> The RPC "active-route" is used to retrieve the active route in a RIB. >> RFC8349 defined two AFIs (v4/v6). >>=20 >> draft-ietf-mpls-base-yang is defining a new RIB AFI for MPLS as per >> section 3 in RFC8349. >>=20 >> The RPC has a "MUST" statement that all RIBs must augment input >> parameters with a leaf named 'destination-address'. >>=20 >> For MPLS RIB, it makes sense to augment with leaf named 'local-label' >> since MPLS routes are identified by MPLS label. >>=20 >> We ask to make the following change: >>=20 >> OLD: >> action active-route { >> description >> "Return the active RIB route that is used for the >> destination address. >>=20 >> Address-family-specific modules MUST augment input >> parameters with a leaf named 'destination-address'."; >>=20 >>=20 >> Corrected Text >> -------------- >> NEW: >> action active-route { >> description >> "Return the active RIB route that is used for the >> destination address. >>=20 >> Address-family-specific modules MUST augment input >> parameters with a suitable leaf that identifies the >> route."; >>=20 >>=20 >> Notes >> ----- >>=20 >>=20 >> 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 >> can log in to change the status and edit the report, if necessary. >>=20 >> -------------------------------------- >> RFC8349 (draft-ietf-netmod-rfc8022bis-11) >> -------------------------------------- >> Title : A YANG Data Model for Routing Management (NMDA >> Version) >> Publication Date : March 2018 >> Author(s) : L. Lhotka, A. Lindem, Y. Qu >> Category : PROPOSED STANDARD >> Source : Network Modeling >> Area : Operations and Management >> Stream : IETF >> Verifying Party : IESG >>=20 >> _______________________________________________ >> netmod mailing list >> netmod@ietf.org >> = https://urldefense.com/v3/__https://www.ietf.org/mailman/listinfo/netmod__= ;!!NEt6yMaO-gk!URK5WVsqD5g7WpzCU1VuzKJA0AUiawXBFLB_gENlsYMrpiMqDtyFoxxyc2_= LZA$ >=20 >=20 >=20 > Juniper Business Use Only >=20 >=20 > _______________________________________________ > netmod mailing list > netmod@ietf.org > https://www.ietf.org/mailman/listinfo/netmod = --Apple-Mail=_2ABA6947-AE24-447D-85AF-BF27B1D483CA Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8 Folks,

Many= messages for this thread are being blocked by the list server, = requiring manual effort by the chairs to release them.  Here are = the headers from one such message:

To: Tarek Saad <tsaad@juniper.net>, = tom petch <ietfc@btconnect.com>, "Rob
 Wilton (rwilton)" <rwilton@cisco.com>, = RFC Errata System
 <rfc-editor@rfc-editor.org>, "lhotka@nic.cz" <lhotka@nic.cz>,
 "yingzhen.qu@huawei.com" <yingzhen.qu@huawei.com>, "warren@kumari.net"
 <warren@kumari.net>

CC: "netmod@ietf.org" <netmod@ietf.org>, "netconf-chairs@ietf.org"
 <netconf-chairs@ietf.org>, "mpls@ietf.org" <mpls@ietf.org>,
 "draft-ietf-mpls-base-yang@ietf.org" <draft-ietf-mpls-base-yang@ietf.org>

At a minimum, I suggest = removing rfc-editor@rfc-editor.org and netconf-chairs@ietf.org in your next Reply-All. =  Thanks!

PS: I=E2=80=99ll release the messages stuck in the queue = now.

Kent



Pending posts:
From: tsaad@juniper.net on Fri Aug 14 09:25:03 2020
Subject: Re: [netmod] [Technical Errata Reported] RFC8349 = (6251)
Cause: Too many recipients to the message

From: acee@cisco.com on Fri Aug 14 09:27:16 = 2020
Subject: Re: [netmod] [Technical Errata Reported] = RFC8349 (6251)
Cause: Too many recipients to the = message

From: acee@cisco.com on Fri Aug 14 09:29:05 = 2020
Subject: Re: [mpls] [netmod] [Technical Errata Reported] = RFC8349 (6251)
Cause: Too many recipients to the = message

From: tsaad.net@gmail.com on Fri Aug 14 09:30:28 = 2020
Subject: Re: [mpls] [netmod] [Technical Errata Reported] = RFC8349 (6251)
Cause: Too many recipients to the = message

From: ietfc@btconnect.com on Fri Aug 14 09:41:14 = 2020
Subject: Re: [mpls] [netmod] [Technical Errata Reported] = RFC8349 (6251)
Cause: Too many recipients to the = message

From: rwilton@cisco.com on Fri Aug 14 10:38:23 = 2020
Subject: RE: [mpls] [netmod] [Technical Errata Reported] = RFC8349 (6251)
Cause: Too many recipients to the = message


K.



On Aug 14, 2020, at 7:45 AM, tom petch <ietfc@btconnect.com>= wrote:

From: Acee Lindem (acee) = <acee@cisco.com>
Sent: 11 August 2020 = 14:08

Hi Tom, Draft = Authors,

The draft = could easily be fixed. You just need to:

 1. Expand on the single sentence in section 2.1 on the = need for non-IP MPLS routes. Given that the draft wasn't modeled = correctly, this wasn't apparent to most of the reviewers.
 2. Add an MPLS AF only = augmentation (enforced via a when statement) to each route for the MPLS = AF specific destination-prefix or destination-address.
 3. Limit the current = local-label augmentation to non-MPLS AFs.
 4. Limit the active-route augmentation to AF MPLS and = change the input to destination-address.

<tp>
'easily'  mmm... I have been getting my mind around this = and see what Acee means and agree.  The I-D specifies an MPLS = address family but then does not create the RIB entries for it in the = way that e.g. IPv4 unicast does in  RFC8349.  Easy may be but = quite a change Another option, again a significant change, would be to = cater only for IP address family with MPLS and drop the MPLS address = family. Either way, whatever the authors decide, I cannot personally see = this falling within the scope or an Erratum or for the IETF Last Call to = complete in a week's time.

I have dropped the RFC Editor and netconf-chairs pro = tem

Tom = Petch

Thanks,
Acee

=EF=BB=BFOn 8/11/20, 6:10 AM, "tom petch" <ietfc@btconnect.com>= wrote:

   From: Acee Lindem (acee) <acee@cisco.com>   Sent: 11 = August 2020 10:47

   Hi Tom,
   I fully understood your original comment. = There are other problems with this model. See inline.

   On 8/11/20, = 4:59 AM, "tom petch" <ietfc@btconnect.com> wrote:

       Tarek

       Picking up on an = earlier point,

       _____________________= ___________________
       From: Tarek Saad = <tsaad@juniper.net>
       Sent: 10 August = 2020 21:23

       Hi Acee,

       The existing RPC is = used to query (defined AFIs=3DIPv4/IPv6) RIB to return the matching = active route identified by a "destination address".
       The MPLS module is = trying to reuse this RPC so to query the MPLS RIB to return the matching = active route identified by a "local label".
       The RPC defined in = RFC 8349 readily accepts MPLS AFI in it = (/rt:routing/rt:ribs/rt:rib/rt:active-route) - unless we augment and = suppress it with a "when check".
       IMO, it is reusable = as-is but the text below is limiting the leaf name that identifies an = entry in RIB to "destination-address" only - in MPLS RIB the entry leaf = name that identifies an entry is "local-label".

   It is not = reusable as is since the augmentation RPC augmentation must have a when = statement restricting it to AF MPLS. Also, local-label is a leaf which = is applicable to all address families. It cannot be the AF MPLS = destination-prefix. This augmentation is missing.

   <tp>
   I am probably getting out of my depth here, =  On 1may20 I raised the issue of why the 'MUST' in the description = in RFC8349 was not enforced in the YANG and 5may20 Martin explained that = there is a rule in the YANG ABNF of input-stmt that makes the obvious = impossible:-(  You are raising more profound issues about the RIB = that I had not perceived when I reviewed mpls-base-yang for which I, and = I hope everyone else, will be grateful.

   If this mpls I-D is to proceed in the = immediate future, it looks like the action may have to be deferred for = future study.

   More generally, I think that the = interaction of forward by address and forward by label is challenging. =  When first I looked at the MPLS I-D I was surprised at the way = RFC8349 was augmented.  I had not seen MPLS as an alternative to = IPv4 or IPv6 or ... in the way in which the RFC is used although the RFC = does state that it can be; rather, to me, labels are a different animal, = but I assumed that everyone knew what they were doing.

   Tom = Petch


   Thanks,
   Acee


       <tp>
       There should be a = 'when' check to enforce the 'MUST' but the rules of YANG do not allow it = in this structure.  I raised this on the NETMOD list at the time of = WGLC and Martin pointed me to a rule in the ABNF which prohibits such a = check.  He also said that the rule was not needed and would be a = candidate to remove when YANG is revised.

       Hence I have always = thought of this MUST in the documentation as a constraint that must be = enforced in the YANG

       Tom Petch
          act= ion active-route {
          &nb= sp; description
          &nb= sp;   "Return the active RIB route that is used for = the
          &nb= sp;    destination address.

          &nb= sp;    Address-family-specific modules MUST augment = input
          &nb= sp;    parameters with a leaf named = 'destination-address'.";

       Regards,
       Tarek

       On 8/10/20, 3:27 = PM, "Acee Lindem (acee)" <acee@cisco.com> wrote:

          &nb= sp;[External Email. Be cautious of content]


          &nb= sp;All (Speaking as an author of RFC 8349),
          &nb= sp;I just looked at this in more detail and I don't think the = ietf-mpls.yang model should be augmenting the = /rt:routing/rt:ribs/rt:rib/rt:active-route RPC. The intent of the RPC is = to return the address-family specific active-route corresponding to the = destination-address. This model attempts to overload this RPC with a = different action all together - returning a route that has the = local-label as an optional attribute. I'd reject the Errata and believe = the augmentation should be removed from ietf-mpl.yang. Whether it is = replaced with a different one is up to the co-authors of = ietf-mpls.yang.
          &nb= sp;Thanks,
          &nb= sp;Acee

          &nb= sp;On 8/10/20, 2:29 PM, "Rob Wilton (rwilton)" <rwilton@cisco.com> = wrote:

          &nb= sp;    [Resend to hopefully pass recipient limit = filter]

          &nb= sp;    Hi Tom,

          &nb= sp;    I would be interested to hear from the = original authors.

          &nb= sp;    My impression is that this is a technically = reasonable change, but I don't think that an erratum can create a new = revision of a YANG module.

          &nb= sp;    If this erratum was processed as "Hold for = document update" then would that be sufficient to do the right thing in = the MPLS YANG module?

          &nb= sp;    Regards,
          &nb= sp;    Rob


-----Original Message-----
From: tom petch <ietfc@btconnect.com>
Sent: 10 August = 2020 17:32
To: RFC Errata System <rfc-editor@rfc-editor.org>; lhotka@nic.cz; Acee
Lindem (acee) <acee@cisco.com>; yingzhen.qu@huawei.com; warren@kumari.net;
Rob Wilton (rwilton) <rwilton@cisco.com>; joelja@bogus.com;
kent+ietf@watsen.net; = lberger@labn.net
Cc: tsaad@juniper.net; netmod@ietf.org
Subject: Re: [netmod] = [Technical Errata Reported] RFC8349 (6251)

From: netmod <netmod-bounces@ietf.org> on behalf of RFC Errata = System
<rfc-editor@rfc-editor.org>
Sent: 07 = August 2020 16:45

<tp>
This is the erratum of whose arrival I speculated on this = list on June
16th.

There is a = degree of urgency about it.  The I-D in question is mpls-base-
yang, currently in IETF Last Call, which is a Normative = dependency of bfd-
yang which is a Normative dependency = for a small mountain of I-D which
have been waiting a year = or so (e.g.  ospf-yang).

I suspect = that the technically perfect solution would involve a YANG
union, choice or some such structure but as I said in my Last = Call comment
I can live with a label that contains such as = 'address' encompassing such
as 'label' in the context of = forwarding.  I take labels to mean what
labels mean = rather than what I might find in a work of reference.

Tom Petch

The following errata = report has been submitted for RFC8349,
"A YANG Data Model = for Routing Management (NMDA Version)".

--------------------------------------
You may = review the report below and at:
https://urldefense.com/v3/__https://www.rfc-editor.org/errata/e= id6251__;!!NEt6yMaO-gk!URK5WVsqD5g7WpzCU1VuzKJA0AUiawXBFLB_gENlsYMrpiMqDty= Foxw8DnSr2A$

--------------------------------------
Type: = Technical
Reported by: Tarek Saad = <tsaad@juniper.net>

Section: 7

Original Text
-------------
The RPC "active-route" is used to retrieve the active route = in a RIB.
RFC8349 defined two AFIs (v4/v6).

draft-ietf-mpls-base-yang is defining a new = RIB AFI for MPLS as per
section 3 in RFC8349.

The RPC has a "MUST" statement that all RIBs = must augment input
parameters with a leaf named = 'destination-address'.

For MPLS RIB, it = makes sense to augment with leaf named 'local-label'
since = MPLS routes are identified by MPLS label.

We = ask to make the following change:

OLD:
          act= ion active-route {
          &nb= sp; description
          &nb= sp;   "Return the active RIB route that is used for = the
          &nb= sp;    destination address.

          &nb= sp;    Address-family-specific modules MUST augment = input
          &nb= sp;    parameters with a leaf named = 'destination-address'.";


Corrected Text
--------------
NEW:
          act= ion active-route {
          &nb= sp; description
          &nb= sp;   "Return the active RIB route that is used for = the
          &nb= sp;    destination address.

          &nb= sp;    Address-family-specific modules MUST augment = input
          &nb= sp;    parameters with a suitable leaf that = identifies the
route.";


Notes
-----


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
can log in to change the status and edit the report, = if necessary.

--------------------------------------
RFC8349 = (draft-ietf-netmod-rfc8022bis-11)
--------------------------------------
Title =             &n= bsp; : A YANG Data Model for Routing Management (NMDA
Version)
Publication Date    : = March 2018
Author(s) =           : L. Lhotka, = A. Lindem, Y. Qu
Category =            : = PROPOSED STANDARD
Source =             &n= bsp;: Network Modeling
Area =             &n= bsp;  : Operations and Management
Stream =             &n= bsp;: IETF
Verifying Party     : = IESG

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= --Apple-Mail=_2ABA6947-AE24-447D-85AF-BF27B1D483CA-- From nobody Mon Aug 17 09:28:39 2020 Return-Path: X-Original-To: mpls@ietf.org Delivered-To: mpls@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 2750C3A112F; Mon, 17 Aug 2020 09:28:32 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: mpls@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 7.14.0 Auto-Submitted: auto-generated Precedence: bulk Reply-To: mpls@ietf.org Message-ID: <159768171208.10787.7936925410849793502@ietfa.amsl.com> Date: Mon, 17 Aug 2020 09:28:32 -0700 Archived-At: Subject: [mpls] I-D Action: draft-ietf-mpls-base-yang-15.txt X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 17 Aug 2020 16:28:32 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Multiprotocol Label Switching WG of the IETF. Title : A YANG Data Model for MPLS Base Authors : Tarek Saad Kamran Raza Rakesh Gandhi Xufeng Liu Vishnu Pavan Beeram Filename : draft-ietf-mpls-base-yang-15.txt Pages : 22 Date : 2020-08-17 Abstract: This document contains a specification of the MPLS base YANG model. The MPLS base YANG model serves as a base framework for configuring and managing an MPLS switching subsystem on an MPLS-enabled router. It is expected that other MPLS YANG models (e.g. MPLS Label Switched Path (LSP) Static, LDP or RSVP-TE YANG models) will augment the MPLS base YANG model. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-mpls-base-yang/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-mpls-base-yang-15 https://datatracker.ietf.org/doc/html/draft-ietf-mpls-base-yang-15 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-mpls-base-yang-15 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. 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Mon, 17 Aug 2020 23:39:28 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: mpls@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 7.14.0 Auto-Submitted: auto-generated Precedence: bulk Reply-To: mpls@ietf.org Message-ID: <159773276819.26155.9098214064482574539@ietfa.amsl.com> Date: Mon, 17 Aug 2020 23:39:28 -0700 Archived-At: Subject: [mpls] I-D Action: draft-ietf-mpls-lsp-ping-registries-update-03.txt X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 18 Aug 2020 06:39:28 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Multiprotocol Label Switching WG of the IETF. Title : Updating the IANA MPLS LSP Ping Parameters Authors : Loa Andersson Mach Chen Carlos Pignataro Tarek Saad Filename : draft-ietf-mpls-lsp-ping-registries-update-03.txt Pages : 14 Date : 2020-08-17 Abstract: This document updates RFC 8029 and RFC 8611 that both define IANA registries for MPLS LSP Ping. It also updates the description of the procedures for the responses sent when an unknown or erroneous code point is found. The updates are to clarify and align this name space with recent developments. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-mpls-lsp-ping-registries-update/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-mpls-lsp-ping-registries-update-03 https://datatracker.ietf.org/doc/html/draft-ietf-mpls-lsp-ping-registries-update-03 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-mpls-lsp-ping-registries-update-03 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Tue Aug 18 00:14:48 2020 Return-Path: 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 D88273A17F4; Tue, 18 Aug 2020 00:14:45 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.897 X-Spam-Level: X-Spam-Status: No, score=-1.897 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_NONE=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 209DfF2SjlWN; Tue, 18 Aug 2020 00:14:44 -0700 (PDT) Received: from pipi.pi.nu (pipi.pi.nu [83.168.239.141]) (using TLSv1.1 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 56C5E3A17F0; Tue, 18 Aug 2020 00:14:42 -0700 (PDT) Received: from [192.168.1.19] (unknown [122.2.101.80]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: loa@pi.nu) by pipi.pi.nu (Postfix) with ESMTPSA id 9C8D1325A39; Tue, 18 Aug 2020 09:14:31 +0200 (CEST) To: mpls@ietf.org, Adrian Farrel References: <159773276819.26155.9098214064482574539@ietfa.amsl.com> From: Loa Andersson Cc: "draft-ietf-mpls-lsp-ping-registries-update@ietf.org" , "mpls-chairs@ietf.org" , Donald Eastlake Message-ID: <635a1af6-249e-7112-aa8f-7877ecff5d17@pi.nu> Date: Tue, 18 Aug 2020 15:14:26 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: <159773276819.26155.9098214064482574539@ietfa.amsl.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Archived-At: Subject: [mpls] draft-ietf-mpls-lsp-ping-registries-update-03.txt posted wglc requested X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 18 Aug 2020 07:14:46 -0000 Working group, We have updated and posted version -03 of the draft-ietf-mpls-lsp-ping- registries-update. This version addresses the last set of Shepherd comments. some changes that has been agreed upon during the discussions with the Document Shepherd, and the language review by Donald Eastlake. https://datatracker.ietf.org/doc/draft-ietf-mpls-lsp-ping-registries-update/ The main differences are - improved language and grammar . for TLVs and sub-TLVs, code points for Experimental Use and First Come First Served has been added and the code points for Private use has been removed. The author request that the wglc process for this document is started. Adrian is the Shepherd for this document. What will happen now is that - the Shepherd will validate the the document ready for wglc - the IPR poll will be run - the two week wglc will take place (followed by necessary updates by the authors) - wg consensus will be declared by the shepherd - the Shepherd Write-Up will be written - publication will be requested When the Shepherd is not a wg chair, it is sometimes necessary for the chairs to help the Shepherd to add info to the data tracker. wg chairs will coordinate with the Shepherd. /Loa author and mpls wg co-chair On 18/08/2020 14:39, internet-drafts@ietf.org wrote: > > A New Internet-Draft is available from the on-line Internet-Drafts directories. > This draft is a work item of the Multiprotocol Label Switching WG of the IETF. > > Title : Updating the IANA MPLS LSP Ping Parameters > Authors : Loa Andersson > Mach Chen > Carlos Pignataro > Tarek Saad > Filename : draft-ietf-mpls-lsp-ping-registries-update-03.txt > Pages : 14 > Date : 2020-08-17 > > Abstract: > This document updates RFC 8029 and RFC 8611 that both define IANA > registries for MPLS LSP Ping. It also updates the description of the > procedures for the responses sent when an unknown or erroneous code > point is found. The updates are to clarify and align this name space > with recent developments. > > > The IETF datatracker status page for this draft is: > https://datatracker.ietf.org/doc/draft-ietf-mpls-lsp-ping-registries-update/ > > There are also htmlized versions available at: > https://tools.ietf.org/html/draft-ietf-mpls-lsp-ping-registries-update-03 > https://datatracker.ietf.org/doc/html/draft-ietf-mpls-lsp-ping-registries-update-03 > > A diff from the previous version is available at: > https://www.ietf.org/rfcdiff?url2=draft-ietf-mpls-lsp-ping-registries-update-03 > > > Please note that it may take a couple of minutes from the time of submission > until the htmlized version and diff are available at tools.ietf.org. > > Internet-Drafts are also available by anonymous FTP at: > ftp://ftp.ietf.org/internet-drafts/ > > > _______________________________________________ > mpls mailing list > mpls@ietf.org > https://www.ietf.org/mailman/listinfo/mpls > -- Loa Andersson email: loa@pi.nu Senior MPLS Expert loa.pi.nu@gmail.com Bronze Dragon Consulting phone: +46 739 81 21 64 From nobody Wed Aug 19 09:24:46 2020 Return-Path: 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 724F33A0CAF; 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Wed, 19 Aug 2020 16:24:35 +0000 To: last-call@ietf.org References: <159725809676.26545.11479682416116858436@ietfa.amsl.com> Cc: mpls@ietf.org, draft-ietf-mpls-spl-terminology@ietf.org, db3546@att.com, mpls-chairs@ietf.org From: tom petch Message-ID: <5F3D523E.2050805@btconnect.com> Date: Wed, 19 Aug 2020 17:24:30 +0100 User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:38.0) Gecko/20100101 Thunderbird/38.5.0 In-Reply-To: <159725809676.26545.11479682416116858436@ietfa.amsl.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: LO2P265CA0414.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:a0::18) To VI1PR07MB6704.eurprd07.prod.outlook.com (2603:10a6:800:18b::8) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from [192.168.1.65] (86.148.49.170) by LO2P265CA0414.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:a0::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.3305.24 via Frontend Transport; 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DIR:OUT; SFP:1102; X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: btconnect.com X-MS-Exchange-CrossTenant-Network-Message-Id: b2d8f0ce-6cc5-496b-f4c1-08d8445c5c1d X-MS-Exchange-CrossTenant-AuthSource: VI1PR07MB6704.eurprd07.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 Aug 2020 16:24:34.9517 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: cf8853ed-96e5-465b-9185-806bfe185e30 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: w1crECO2z6nTtX4r8lGzd0C0pUUsHNAFkYShX7F2WAa1rhXLcGsISQKDKwm9euPwLeljfgP03MTFHqokSkV9jA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR0701MB2943 Archived-At: Subject: Re: [mpls] Last Call: (Special Purpose Label terminology) to Informational RFC X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Aug 2020 16:24:44 -0000 I find this confusing. It specifies two ranges 0-15 and 0-1048575 the latter being subdivided into ranges 0-15 16-239 etc and then talks of the lower range and the higher range; is the higher range 0-1048575 or 16-239 or 16-1048575 or ...? Lesser and greater or first and second or smaller and larger .. I might find unambiguous but reading this with an innocent eye, I find higher ambiguous. And in Security, 'It does not effect the forwarding ...' Well, no, it would likely not affect it either:-) Tom Petch On 12/08/2020 19:48, The IESG wrote: > > The IESG has received a request from the Multiprotocol Label Switching WG > (mpls) to consider the following document: - 'Special Purpose Label > terminology' > as Informational RFC > > The IESG plans to make a decision in the next few weeks, and solicits final > comments on this action. Please send substantive comments to the > last-call@ietf.org mailing lists by 2020-08-26. Exceptionally, comments may > be sent to iesg@ietf.org instead. In either case, please retain the beginning > of the Subject line to allow automated sorting. > > Abstract > > > This document discusses and recommends a terminology that may be used > when MPLS Special Purpose Labels (SPL) are specified and documented. > > This document updates RFC 7274 and RFC 3032. > > > > > The file can be obtained via > https://datatracker.ietf.org/doc/draft-ietf-mpls-spl-terminology/ > > > > No IPR declarations have been submitted directly on this I-D. > > > > > > _______________________________________________ > IETF-Announce mailing list > IETF-Announce@ietf.org > https://www.ietf.org/mailman/listinfo/ietf-announce > . > From nobody Thu Aug 20 13:21:19 2020 Return-Path: X-Original-To: mpls@ietf.org Delivered-To: mpls@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 5CAFC3A13EF; Thu, 20 Aug 2020 13:21:12 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Gyan Mishra via Datatracker To: Cc: draft-ietf-mpls-base-yang.all@ietf.org, mpls@ietf.org, last-call@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 7.14.1 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <159795487231.23645.8624000777631081432@ietfa.amsl.com> Reply-To: Gyan Mishra Date: Thu, 20 Aug 2020 13:21:12 -0700 Archived-At: Subject: [mpls] Genart last call review of draft-ietf-mpls-base-yang-15 X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Aug 2020 20:21:13 -0000 Reviewer: Gyan Mishra Review result: Ready with Issues I am the assigned Gen-ART reviewer for this draft. The General Area Review Team (Gen-ART) reviews all IETF documents being processed by the IESG for the IETF Chair. Please treat these comments just like any other last call comments. For more information, please see the FAQ at . Document: draft-ietf-mpls-base-yang-?? Reviewer: Gyan Mishra Review Date: 2020-08-20 IETF LC End Date: 2020-08-19 IESG Telechat date: Not scheduled for a telechat Summary: The draft is well written and provides a very basic augmentation of the Yang core data modeling for routing management (NDMA) defined in RFC 8349 which provides the framework for managing routing subsystems. This drafts provides a new MPLS base model framework for managing MPLS routing subsystems, reflecting the mpls protocol specifications defined in RFC 3031 for future extensibility to Segment Routing architecture RFC 8200 and beyond. Major issues: The base mpls model defined in very BASIC as defined in the draft and does not reflect the data modeling of all attributes and features of the MPLS architecture defined in RFC 3031. I understand this draft defines the topmost transport label for MPLS forwarding however it does not fully represent all data models representing the LDP protocol. If the goal of this draft is to reflect RFC 3031 in its entirety it does not appear to do so. If the goal of the draft is to provide just the basics of the MPLS address family framework for future extensibility for MPLS specification as well and this draft is not the "end all be all" for the MPLS protocol specification and is just an introduction of the mpls base Yang model then I think this draft is ready for publication. Examples what I believe is missing in defining RFC 30301 in this MPLS base Yang model. Defining the Label stack and depth of the stack Since this topmost MPLS label can be LDP, Static or RSVP data model is mentioned but not in the context of label stack with multiple lables and that the topmost label based on LFIB forwwarding table could be either TE or LDP tompost label. Also mention of BOS -Bottom of Stack bit for the label stack. Implicit null label value 3 & Explicit Null label value 0 & QOS related to EXP marking related to uniform & pipe mode. I did not see any mention of EXP bits. Also LDP Downstream on demand versus Downstream unsolicited label distribution method MPLS LIB and FEC binding for LSP and data structure for LFIB entry local label & remote label learned via label mapping message. LDP label advertise, allocate, accept policy for /32 FEC binding to be only the loopback of iBGP peer FEC Destination. Label Imposition, Label Swapping & Label Disposition. MPLS LDP multicast extension mLDP - P2MP LSP Also BGP LU labeled unicast BGP being used for Label distribution and label binding for inter-as for topmost label binding inter-as stitching RFC 8277. Also context related to LDPv6 RFC 7552. Also softwire mesh framework RFC 5565 v6 edge over v4 core or v4 edge over v6 core and core transport being v4 or v6 and not both. Minor issues: None Nits/editorial comments: The draft is well written and serves a critical need to extend the Yang data modeling capabilities from existing IPv4 & IPv6 address families to MPLS address family framework. A XML file was not provided on the datatracker so I was not able to run idnits against the draft. 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X-Gm-Message-State: AOAM533/FaTGPQpqYfXCLBIJQKP4N8ZxhNp37ZnHlF19SrV3XDkmx6HS /aTVnjiK8K+p0a8daOH6iI7ttHdGVgLHZwKCXyk= X-Google-Smtp-Source: ABdhPJxRchI6dCPGHzEc2SXqgH7lMbpe91rNhxCi2dY1VQGqSC5ehpwDzS57J4U/poh8ButDQAKrj89jMWja9ueou+8= X-Received: by 2002:a67:bd0f:: with SMTP id y15mr2447382vsq.47.1598039209653; Fri, 21 Aug 2020 12:46:49 -0700 (PDT) MIME-Version: 1.0 References: <159795487231.23645.8624000777631081432@ietfa.amsl.com> In-Reply-To: From: Gyan Mishra Date: Fri, 21 Aug 2020 15:46:38 -0400 Message-ID: To: Tarek Saad Cc: "draft-ietf-mpls-base-yang.all@ietf.org" , "gen-art@ietf.org" , "last-call@ietf.org" , "mpls@ietf.org" Content-Type: multipart/alternative; boundary="0000000000006db9ad05ad687f7b" Archived-At: Subject: Re: [mpls] Genart last call review of draft-ietf-mpls-base-yang-15 X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 21 Aug 2020 19:48:11 -0000 --0000000000006db9ad05ad687f7b Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Thanks Tarek I am all set with your responses which I figured the draft was a generic framework for future MPLS models. Thanks Gyan On Fri, Aug 21, 2020 at 3:37 PM Tarek Saad wrote: > Hi Gyan, > > > > Thanks for your review and feedback. Please see inline for response. > > > > =EF=BB=BFOn 8/20/20, 4:21 PM, "Gyan Mishra via Datatracker" > wrote: > > > > [External Email. Be cautious of content] > > > > > > Reviewer: Gyan Mishra > > Review result: Ready with Issues > > > > I am the assigned Gen-ART reviewer for this draft. The General Area > > Review Team (Gen-ART) reviews all IETF documents being processed > > by the IESG for the IETF Chair. Please treat these comments just > > like any other last call comments. > > > > For more information, please see the FAQ at > > > > < > https://urldefense.com/v3/__https://trac.ietf.org/trac/gen/wiki/GenArtfaq= __;!!NEt6yMaO-gk!S8w6fBzg5hjb7UcNsQdv20qrXxR22KyMBmCTkOJGQW6T-3ejGFC0tAbCed= 7y0Q$ > >. > > > > Document: draft-ietf-mpls-base-yang-?? > > Reviewer: Gyan Mishra > > Review Date: 2020-08-20 > > IETF LC End Date: 2020-08-19 > > IESG Telechat date: Not scheduled for a telechat > > > > Summary: > > The draft is well written and provides a very basic augmentation of > the Yang > > core data modeling for routing management (NDMA) defined in RFC 8349 > which > > provides the framework for managing routing subsystems. This drafts > provides a > > new MPLS base model framework for managing MPLS routing subsystems, > reflecting > > the mpls protocol specifications defined in RFC 3031 for future > extensibility > > to Segment Routing architecture RFC 8200 and beyond. > > > > Major issues: > > The base mpls model defined in very BASIC as defined in the draft and > does not > > reflect the data modeling of all attributes and features of the MPLS > > architecture defined in RFC 3031. I understand this draft defines th= e > topmost > > transport label for MPLS forwarding however it does not fully > represent all > > data models representing the LDP protocol. > > > > [TS]: Yes, the MPLS base model is agnostic to the signaling protocol that > used to populate the MPLS RIBs. As illustrate in Figure 1, we expect othe= r > models to be augmenting MPLS base model. > > > > If the goal of this draft is to reflect RFC 3031 in its entirety it > does not > > appear to do so. If the goal of the draft is to provide just the > basics of the > > MPLS address family framework for future extensibility for MPLS > specification > > as well and this draft is not the "end all be all" for the MPLS > protocol > > specification and is just an introduction of the mpls base Yang model > then I > > think this draft is ready for publication. > > > > [TS]: Yes, this model serves as base augmentation for other MPLS models. > > > > Examples what I believe is missing in defining RFC 30301 in this MPLS > base > > Yang model. Defining the Label stack and depth of the stack Since thi= s > topmost > > MPLS label can be LDP, Static or RSVP data model is mentioned but not > in the > > context of label stack with multiple lables and that the topmost labe= l > based on > > LFIB forwwarding table could be either TE or LDP tompost label. > > > > Also mention of BOS -Bottom of Stack bit for the label stack. > > [TS]: The MPLS label stack type is defined in RFC8294 (see > rt-types:mpls-label-stack) and is being used by MPLS base model. > > > > Implicit null label value 3 & Explicit Null label value 0 & QOS > related to EXP > > marking related to uniform & pipe mode. I did not see any mention of > EXP bits. > > > > [TS]: these types are all are already defined in RFC8294 (please refer to > traffic-class instead of EXP). See below: > > +--ro mpls-label-stack > > +--ro entry* [id] > > +--ro id uint8 > > +--ro label? rt-types:mpls-label > > +--ro ttl? uint8 > > +--ro traffic-class? uint8 > > > > Also LDP Downstream on demand versus Downstream unsolicited label > distribution > > [TS]: As mentioned, these are outside the scope of this model. > > > > method MPLS LIB and FEC binding for LSP and data structure for LFIB > entry > > local label & remote label learned via label mapping message. > > > > LDP label advertise, allocate, accept policy for /32 FEC binding to b= e > only the > > loopback of iBGP peer FEC Destination. > > > > Label Imposition, Label Swapping & Label Disposition. > > > > MPLS LDP multicast extension mLDP - P2MP LSP > > > > Also BGP LU labeled unicast BGP being used for Label distribution and > label > > binding for inter-as for topmost label binding inter-as stitching RFC > 8277. > > > > Also context related to LDPv6 RFC 7552. Also softwire mesh framework > RFC 5565 > > v6 edge over v4 core or v4 edge over v6 core and core transport being > v4 or v6 > > and not both. > > [TS]: MPLS bindings (local/remote) for V4 and V6 prefixes will be found i= n > the augmentation of entries of the respective IPv4 and IPv6 RIBs defined = in > RFC 8349. > > > > Regards, > > Tarek (on behalf of co-authors) > > > > Minor issues: > > None > > > > Nits/editorial comments: > > The draft is well written and serves a critical need to extend the > Yang data > > modeling capabilities from existing IPv4 & IPv6 address families to > MPLS > > address family framework. A XML file was not provided on the > datatracker so I > > was not able to run idnits against the draft. > > > > > > > > > > > > Juniper Business Use Only > > -- *Gyan Mishra* *Network Solutions A**rchitect * *M 301 502-134713101 Columbia Pike *Silver Spring, MD --0000000000006db9ad05ad687f7b Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

Thanks Tarek=C2=A0
=
I am all set with your responses which I figure= d the draft =C2=A0was a generic framework for future MPLS models. =C2=A0

Thanks=C2=A0

Gyan

On Fri, Aug 21, 2020 at 3:37= PM Tarek Saad <tsaad@juniper.net> wrote:
Hi Gyan,


<= br>Thanks for your review and feedback. Please see inline for response.
=


=EF=BB=BFOn 8/20/20, 4:21 PM, "Gyan Mishra via Datatracker= " <noreply@ie= tf.org> wrote:



=C2=A0 =C2=A0 [External Email. Be caut= ious of content]





=C2=A0 =C2=A0 Reviewer: Gyan Mishra=

=C2=A0 =C2=A0 Review result: Ready with Issues



=C2= =A0 =C2=A0 I am the assigned Gen-ART reviewer for this draft. The General A= rea

=C2=A0 =C2=A0 Review Team (Gen-ART) reviews all IETF documents b= eing processed

=C2=A0 =C2=A0 by the IESG for the IETF Chair.=C2=A0 P= lease treat these comments just

=C2=A0 =C2=A0 like any other last ca= ll comments.



=C2=A0 =C2=A0 For more information, please see = the FAQ at



=C2=A0 =C2=A0 <https://urldefense.com/v3/__https://trac.ietf.org/tra= c/gen/wiki/GenArtfaq__;!!NEt6yMaO-gk!S8w6fBzg5hjb7UcNsQdv20qrXxR22KyMBmCTkO= JGQW6T-3ejGFC0tAbCed7y0Q$ >.



=C2=A0 =C2=A0 Document: = draft-ietf-mpls-base-yang-??

=C2=A0 =C2=A0 Reviewer: Gyan Mishra
=
=C2=A0 =C2=A0 Review Date: 2020-08-20

=C2=A0 =C2=A0 IETF LC End = Date: 2020-08-19

=C2=A0 =C2=A0 IESG Telechat date: Not scheduled for= a telechat



=C2=A0 =C2=A0 Summary:

=C2=A0 =C2=A0 The = draft is well written and provides a very basic augmentation of the Yang
=C2=A0 =C2=A0 core data modeling for routing management (NDMA) defined= in RFC 8349 which

=C2=A0 =C2=A0 provides the framework for managing= routing subsystems. This drafts provides a

=C2=A0 =C2=A0 new MPLS b= ase model framework for managing MPLS routing subsystems, reflecting
=C2=A0 =C2=A0 the mpls protocol specifications defined in RFC 3031=C2=A0 f= or future extensibility

=C2=A0 =C2=A0 to Segment Routing architectur= e RFC 8200 and beyond.



=C2=A0 =C2=A0 Major issues:

= =C2=A0 =C2=A0 The base mpls model defined in very BASIC as defined in the d= raft and does not

=C2=A0 =C2=A0 reflect the data modeling of all att= ributes and features of the MPLS

=C2=A0 =C2=A0 architecture defined = in RFC 3031.=C2=A0 I understand this draft defines the topmost

=C2= =A0 =C2=A0 transport label for MPLS forwarding however it does not fully re= present all

=C2=A0 =C2=A0 data models representing the LDP protocol.=



[TS]: Yes, the MPLS base model is agnostic to the signaling= protocol that used to populate the MPLS RIBs. As illustrate in Figure 1, w= e expect other models to be augmenting MPLS base model.



=C2= =A0 =C2=A0 If the goal of this draft is to reflect RFC 3031 in its entirety= it does not

=C2=A0 =C2=A0 appear to do so.=C2=A0 If the goal of the= draft is to provide just the basics of the

=C2=A0 =C2=A0 MPLS addre= ss family framework for future extensibility for MPLS specification

= =C2=A0 =C2=A0 as well and this draft is not the "end all be all" = for the MPLS protocol

=C2=A0 =C2=A0 specification and is just an int= roduction of the mpls base Yang model then I

=C2=A0 =C2=A0 think thi= s draft is ready for publication.



[TS]: Yes, this model serv= es as base augmentation for other MPLS models.



=C2=A0 =C2=A0= Examples what I believe is missing in defining RFC 30301 in this MPLS base=

=C2=A0 =C2=A0 Yang model. Defining the Label stack and depth of the= stack Since this topmost

=C2=A0 =C2=A0 MPLS label can be LDP, Stati= c or RSVP data model is mentioned but not in the

=C2=A0 =C2=A0 conte= xt of label stack with multiple lables and that the topmost label based on<= br>
=C2=A0 =C2=A0 LFIB forwwarding table could be either TE or LDP tompo= st label.



=C2=A0 =C2=A0 Also mention of BOS -Bottom of Stack= bit for the label stack.

[TS]: The MPLS label stack type is defined= in RFC8294 (see rt-types:mpls-label-stack) and is being used by MPLS base = model.



=C2=A0 =C2=A0 Implicit null label value 3 & Expli= cit Null=C2=A0 label value 0 & QOS related to EXP

=C2=A0 =C2=A0 = marking related to uniform & pipe mode. I did not see any mention of EX= P bits.



[TS]: these types are all are already defined in RFC= 8294 (please refer to traffic-class instead of EXP). See below:

=C2= =A0 =C2=A0 +--ro mpls-label-stack

=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= +--ro entry* [id]

=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0+= --ro id=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0uint8

= =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0+--ro label?=C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0rt-types:mpls-label

=C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0+--ro ttl?=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0uint8

=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0+--r= o traffic-class?=C2=A0 =C2=A0uint8



=C2=A0 =C2=A0 Also LDP Do= wnstream on demand versus Downstream unsolicited label distribution

= [TS]: As mentioned, these are outside the scope of this model.


<= br>=C2=A0 =C2=A0 method MPLS LIB and FEC binding for LSP=C2=A0 and data str= ucture for LFIB entry

=C2=A0 =C2=A0 local label & remote label l= earned via label mapping message.



=C2=A0 =C2=A0 LDP label ad= vertise, allocate, accept policy for /32 FEC binding to be only the

= =C2=A0 =C2=A0 loopback of iBGP peer FEC Destination.



=C2=A0 = =C2=A0 Label Imposition, Label Swapping & Label Disposition.


=C2=A0 =C2=A0 MPLS LDP=C2=A0 =C2=A0multicast extension mLDP - P2MP LSP=



=C2=A0 =C2=A0 Also BGP LU labeled unicast BGP being used fo= r Label distribution and label

=C2=A0 =C2=A0 binding for inter-as fo= r topmost label binding inter-as stitching RFC 8277.



=C2=A0 = =C2=A0 Also context related to LDPv6 RFC 7552.=C2=A0 Also softwire mesh fra= mework RFC 5565

=C2=A0 =C2=A0 v6 edge over v4 core or v4 edge over v= 6 core and core transport being v4 or v6

=C2=A0 =C2=A0 and not both.=

[TS]: MPLS bindings (local/remote) for V4 and V6 prefixes will be f= ound in the augmentation of entries of the respective IPv4 and IPv6 RIBs de= fined in RFC 8349.



Regards,

Tarek (on behalf of co-au= thors)



=C2=A0 =C2=A0 Minor issues:

=C2=A0 =C2=A0 None=



=C2=A0 =C2=A0 Nits/editorial comments:

=C2=A0 =C2=A0= The draft is well written and serves a critical need to extend the Yang da= ta

=C2=A0 =C2=A0 modeling capabilities from existing IPv4 & IPv6= address families to MPLS

=C2=A0 =C2=A0 address family framework. A = XML file was not provided on the datatracker so I

=C2=A0 =C2=A0 was = not able to run idnits against the draft.










Juniper Business Use Only

-- =
=


Gyan Mishra

Network Solutions Architect=C2=A0

M 301 502-1347
13101 Columbia Pike=C2=A0
<= /i>Silver Spring, MD


=
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verify=NO); Sun, 23 Aug 2020 21:47:01 +0100 Reply-To: From: "Adrian Farrel" To: "'tom petch'" , Cc: , , , References: <159725809676.26545.11479682416116858436@ietfa.amsl.com> <5F3D523E.2050805@btconnect.com> In-Reply-To: <5F3D523E.2050805@btconnect.com> Date: Sun, 23 Aug 2020 21:47:00 +0100 Organization: Old Dog Consulting Message-ID: <08eb01d6798e$8cde63b0$a69b2b10$@olddog.co.uk> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQF6F6a5eRNF7USBcsjJJyR2gvQXGAF0oomyqfNGkdA= Content-Language: en-gb X-Originating-IP: 81.174.197.1 X-Thinkmail-Auth: adrian@olddog.co.uk X-TM-AS-GCONF: 00 X-TM-AS-Product-Ver: IMSVA-9.0.0.1623-8.2.0.1013-25622.002 X-TM-AS-Result: No--31.765-10.0-31-10 X-imss-scan-details: No--31.765-10.0-31-10 X-TMASE-Version: IMSVA-9.0.0.1623-8.2.1013-25622.002 X-TMASE-Result: 10--31.765100-10.000000 X-TMASE-MatchedRID: rYpa/RC+czFfsB4HYR80ZggKAWhuC2ojJqv0GX3SOh0/vgFpaLdKGzqJ l56wIdACd5NIkvGj2OvXHU2OPIyBgsRBLZ5x+SkXnaqtHOuEdarj5BwyjnidOI5JUK9UdYkn2P2 km/foisknQd4tVJjVqyfyuWB93oCTAKSENV9htEvM1jffIgQXhq1ZGUKR0Ygs+S5C/08hWc3hmo EMFHeqoQaytMVAgE1V1NTj7+mkLH6e74p71G9s5ZixDyZ4rnsH6KPiBX2tI0grhioeAJKilUGjS uHHltwcM1G9zj7dPEfbWy9Ndwr0MJ6kz0avHexj8eSmTJSmEv2ghxnyQNIbHeZMicrOlIVJcfIu blHY1q33gCZqe7dVr9ZxIWPsCQYqthfZltvQe7KOjIrMSa2sRwikKAH1xS/ea0TOsL14A2nccF+ vY4fYYc/4ZsnuGCiXwpvu0an2gbWQ1IMbaq27M51U1lojafr/qb3/o5s+OcO9eNsTtvBD3ozLyE gWJmpBeEOc+6uohk/Lk+qclEUD4eVHGbcDbAq6OX/V8P8ail3InWAWA4yE6ZuTdmBzA9G/DMq3z /Y/gtW8QIu4z6HhEH7cGd19dSFd X-TMASE-SNAP-Result: 1.821001.0001-0-1-12:0,22:0,33:0,34:0-0 Archived-At: Subject: Re: [mpls] Last Call: (Special Purpose Label terminology) to Informational RFC X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 23 Aug 2020 20:47:11 -0000 Hi Tom, You're right (a condition that must be scarily familiar for you). Probably... OLD o Collectively, the two ranges are known as Special Purpose Labels (SPL). o The special purpose labels from the lower range will be called Base Special Purpose Labels (bSPL). o The special purpose labels from the higher range will be called Extended Special Purpose Labels (eSPL). NEW o Collectively, the two ranges (0-15, and 16-1048575) are known as Special Purpose Labels (SPL). o The special purpose labels from the lower range (0-15) will be called Base Special Purpose Labels (bSPL). o The special purpose labels from the higher range (16-1048575) will be called Extended Special Purpose Labels (eSPL). The reserved values 0-15 from the 'Extended Special-Purpose MPLS Label Values' registry do not need a name as they can never be used. END Best, Adrian -----Original Message----- From: tom petch Sent: 19 August 2020 17:25 To: last-call@ietf.org Cc: mpls@ietf.org; draft-ietf-mpls-spl-terminology@ietf.org; db3546@att.com; mpls-chairs@ietf.org Subject: Re: Last Call: (Special Purpose Label terminology) to Informational RFC I find this confusing. It specifies two ranges 0-15 and 0-1048575 the latter being subdivided into ranges 0-15 16-239 etc and then talks of the lower range and the higher range; is the higher range 0-1048575 or 16-239 or 16-1048575 or ...? Lesser and greater or first and second or smaller and larger .. I might find unambiguous but reading this with an innocent eye, I find higher ambiguous. And in Security, 'It does not effect the forwarding ...' Well, no, it would likely not affect it either:-) Tom Petch On 12/08/2020 19:48, The IESG wrote: > > The IESG has received a request from the Multiprotocol Label Switching WG > (mpls) to consider the following document: - 'Special Purpose Label > terminology' > as Informational RFC > > The IESG plans to make a decision in the next few weeks, and solicits final > comments on this action. Please send substantive comments to the > last-call@ietf.org mailing lists by 2020-08-26. Exceptionally, comments may > be sent to iesg@ietf.org instead. In either case, please retain the beginning > of the Subject line to allow automated sorting. > > Abstract > > > This document discusses and recommends a terminology that may be used > when MPLS Special Purpose Labels (SPL) are specified and documented. > > This document updates RFC 7274 and RFC 3032. > > > > > The file can be obtained via > https://datatracker.ietf.org/doc/draft-ietf-mpls-spl-terminology/ > > > > No IPR declarations have been submitted directly on this I-D. > > > > > > _______________________________________________ > IETF-Announce mailing list > IETF-Announce@ietf.org > https://www.ietf.org/mailman/listinfo/ietf-announce > . > From nobody Mon Aug 24 03:02:25 2020 Return-Path: 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 E6F063A0C0C; Mon, 24 Aug 2020 03:02:22 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.948 X-Spam-Level: X-Spam-Status: No, score=-0.948 tagged_above=-999 required=5 tests=[DKIM_SIGNED=0.1, DKIM_VALID=-0.1, MSGID_FROM_MTA_HEADER=0.001, NICE_REPLY_A=-0.948, RCVD_IN_MSPIKE_H2=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); 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The > reserved values 0-15 from the 'Extended Special-Purpose MPLS > Label Values' registry do not need a name as they can never be > used. > END Yes, clearer. Perhaps " The reserved values 0-15 from the 'Extended Special-Purpose MPLS Label Values' registry do not need a name as they are not available for allocation. " to tie in with the wording of IANA. They SHOULD NOT or MUST NOT be used but I can see some independent-minded organisation deciding that because noone else will ever use them then they can and they will so I think 'can never be used' is not quite right. They can never be allocated so we do not need an identifier for them, which is what I am wanting to express. I note that this is Informational and so RFC2119 language is best avoided. Tom Petch > Best, > Adrian > > -----Original Message----- > From: tom petch > Sent: 19 August 2020 17:25 > To: last-call@ietf.org > Cc: mpls@ietf.org; draft-ietf-mpls-spl-terminology@ietf.org; db3546@att.com; > mpls-chairs@ietf.org > Subject: Re: Last Call: (Special > Purpose Label terminology) to Informational RFC > > I find this confusing. > > It specifies two ranges 0-15 and 0-1048575 the latter being subdivided > into ranges 0-15 16-239 etc and then talks of the lower range and the > higher range; is the higher range 0-1048575 or 16-239 or 16-1048575 or ...? > Lesser and greater or first and second or smaller and larger .. I might > find unambiguous but reading this with an innocent eye, I find higher > ambiguous. > > And in Security, 'It does not effect the forwarding ...' Well, no, it > would likely not affect it either:-) > > Tom Petch > > > > On 12/08/2020 19:48, The IESG wrote: >> >> The IESG has received a request from the Multiprotocol Label Switching WG >> (mpls) to consider the following document: - 'Special Purpose Label >> terminology' >> as Informational RFC >> From nobody Mon Aug 24 04:23:26 2020 Return-Path: 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 A58693A0CC9; Mon, 24 Aug 2020 04:23:25 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.001 X-Spam-Level: X-Spam-Status: No, score=-0.001 tagged_above=-999 required=5 tests=[DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_MSPIKE_H2=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=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 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ICAgPiBfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwogICAg ICAgID4gSUVURi1Bbm5vdW5jZSBtYWlsaW5nIGxpc3QKICAgICAgICA+IElFVEYtQW5ub3VuY2VA aWV0Zi5vcmcKICAgICAgICA+IGh0dHBzOi8vd3d3LmlldGYub3JnL21haWxtYW4vbGlzdGluZm8v aWV0Zi1hbm5vdW5jZQogICAgICAgID4gLgogICAgICAgID4KICAgIF9fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCiAgICBtcGxzIG1haWxpbmcgbGlzdAogICAg bXBsc0BpZXRmLm9yZwogICAgaHR0cHM6Ly93d3cuaWV0Zi5vcmcvbWFpbG1hbi9saXN0aW5mby9t cGxzCg== From nobody Mon Aug 24 10:27:59 2020 Return-Path: X-Original-To: mpls@ietf.org Delivered-To: mpls@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id C021E3A122E; Mon, 24 Aug 2020 10:27:57 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Liaison Statement Management Tool To: Cc: Vishnu Beeram , Path Computation Element Discussion List , Daniele Ceccarelli , Multiprotocol Label Switching Discussion List , Traffic Engineering Architecture and Signaling Discussion List , Scott Mansfield , John Drake , Tarek Saad , Common Control and Measurement Plane Discussion List , itu-t-liaison@iab.org, Lou Berger , Loa Andersson , Fatai Zhang , Julien Meuric , Alvaro Retana , Deborah Brungard , Nicolai Leymann , scott.mansfield@ericsson.com, Dhruv Dhody , Martin Vigoureux X-Test-IDTracker: no X-IETF-IDTracker: 7.14.1 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <159829007777.27288.9464080707579066019@ietfa.amsl.com> Date: Mon, 24 Aug 2020 10:27:57 -0700 Archived-At: Subject: [mpls] New Liaison Statement, "Reply to LS on OTNT Standardization Work Plan" X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 24 Aug 2020 17:27:58 -0000 Title: Reply to LS on OTNT Standardization Work Plan Submission Date: 2020-08-24 URL of the IETF Web page: https://datatracker.ietf.org/liaison/1693/ From: Scott Mansfield To: hiroshi.ota@itu.int Cc: Martin Vigoureux ,Loa Andersson ,Julien Meuric ,Traffic Engineering Architecture and Signaling Discussion List ,Fatai Zhang ,Path Computation Element Discussion List ,John Drake ,itu-t-liaison@iab.org,Scott Mansfield ,Dhruv Dhody ,Multiprotocol Label Switching Discussion List ,Alvaro Retana ,Deborah Brungard ,Vishnu Beeram ,Nicolai Leymann ,Daniele Ceccarelli ,Lou Berger ,Tarek Saad ,Common Control and Measurement Plane Discussion List Response Contacts: scott.mansfield@ericsson.com Technical Contacts: scott.mansfield@ericsson.com Purpose: For information Body: Thank you for your continued interest in the work of the IETF related to OTNT standardization. This liaison is in response to SG15-LS245 (https://datatracker.ietf.org/liaison/1673/) A list of changes and additions is contained below: + In section 4.7.2 - Delete L2VPN WG - Delete PWE3 WG - NOTE: L2VPN and PWE3 WGs were replaced by the PALS WG, but the PALS WG has mostly concluded its work - Add - PCE WG: Protocols to enable a Path Computation Element-based architecture - TEAS WG: IP, MPLS, and GMPLS Traffic engineering architecture and related control-protocol functions + Updates to Table 11 in section 6.4 - Updates to Internet Drafts - Add * PCEP Extensions for LSP scheduling with stateful PCE https://datatracker.ietf.org/doc/draft-ietf-pce-stateful-pce-lsp-scheduling/ - Delete expired draft * A framework for Management and Control of DWDM optical interface Parameters https://datatracker.ietf.org/doc/draft-ietf-ccamp-dwdm-if-mng-ctrl-fwk/ - Delete drafts that are now RFCs * PCEP Extension for WSON Routing and Wavelength Assignment (now RFC 8780) https://datatracker.ietf.org/doc/draft-ietf-pce-wson-rwa-ext/ * PCEP extensions for GMPLS (now RFC 8779) https://datatracker.ietf.org/doc/draft-ietf-pce-gmpls-pcep-extensions/ - Delete replaced Internet Drafts * Path Computation Element Communication Protocol (PCEP) Extensions for remote-initiated GMPLS LSP Setup (merged with PCEP Extension for Flexible Grid Networks Internet Draft) https://datatracker.ietf.org/doc/draft-ietf-pce-remote-initiated-gmpls-lsp - Add RFCs - RFC 8237 * October 2017 * MPLS Label Switched Path (LSP) Pseudowire (PW) Status Refresh Reduction for Static PWs * https://datatracker.ietf.org/doc/rfc8237/ - RFC 8469 * November 2018 * Recommendation to Use the Ethernet Control Word * https://datatracker.ietf.org/doc/rfc8469/ - RFC8779 * July 2020 * Path Computation Element Communication Protocol (PCEP) Extensions for GMPLS * https://datatracker.ietf.org/doc/rfc8779/ - RFC8780 * July 2020 * The Path Computation Element Communication Protocol (PCEP) Extension for Wavelength Switched Optical Network (WSON) Routing and Wavelength Assignment (RWA) * https://datatracker.ietf.org/doc/rfc8780/ The list of upcoming IETF meetings can be found on the IETF website at https://www.ietf.org/how/meetings/upcoming/ Thank You, Daniele Ceccarelli (CCAMP Chair), Fatai Zhang (CCAMP Chair), Dhruv Dhody (PCE Chair), Julien Meuric (PCE Chair), Vishnu Beeram (TEAS Chair), Lou Berger (TEAS Chair), Loa Andersson (MPLS Chair), Nicolai Leymann (MPLS Chair), Tarek Saad (MPLS Chair),and Scott Mansfield (IETF's ITU-T Liaison) Attachments: No document has been attached From nobody Mon Aug 24 10:28:47 2020 Return-Path: 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 BF6C63A1231; Mon, 24 Aug 2020 10:28:45 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.198 X-Spam-Level: X-Spam-Status: No, score=-0.198 tagged_above=-999 required=5 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AOAM531B22zwoABzEZvRJoGPu/0ZSTwnEzOt3H8fnioq370D03ovHfbv EREceuwfw19NCYugvC5lq2E= X-Google-Smtp-Source: ABdhPJwdYTS9/W/HWFr7P+qf2iacb/R+4wSowqMm7vBQ2CjgUnBFu0lHPjf917n7QVwTizpjsFi1NQ== X-Received: by 2002:a5d:4bcf:: with SMTP id l15mr6779737wrt.384.1598291060806; Mon, 24 Aug 2020 10:44:20 -0700 (PDT) Received: from [192.168.178.46] ([62.3.64.16]) by smtp.gmail.com with ESMTPSA id 31sm26022645wrp.87.2020.08.24.10.44.19 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 24 Aug 2020 10:44:20 -0700 (PDT) From: Stewart Bryant Message-Id: <884D193E-0668-4275-8E8E-2011F7C09A3D@gmail.com> Content-Type: multipart/alternative; boundary="Apple-Mail=_603A504A-69B5-42A2-AF48-689CC25C6968" Mime-Version: 1.0 (Mac OS X Mail 13.4 \(3608.120.23.2.1\)) Date: Mon, 24 Aug 2020 18:43:49 +0100 In-Reply-To: <5F439021.7050804@btconnect.com> Cc: Stewart Bryant , adrian@olddog.co.uk, last-call@ietf.org, mpls@ietf.org, draft-ietf-mpls-spl-terminology@ietf.org, mpls-chairs@ietf.org To: tom petch References: <159725809676.26545.11479682416116858436@ietfa.amsl.com> <5F3D523E.2050805@btconnect.com> <08eb01d6798e$8cde63b0$a69b2b10$@olddog.co.uk> <5F439021.7050804@btconnect.com> X-Mailer: Apple Mail (2.3608.120.23.2.1) Archived-At: Subject: Re: [mpls] Last Call: (Special Purpose Label terminology) to Informational RFC X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 24 Aug 2020 17:44:25 -0000 --Apple-Mail=_603A504A-69B5-42A2-AF48-689CC25C6968 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 > On 24 Aug 2020, at 11:02, tom petch wrote: >=20 > On 23/08/2020 21:47, Adrian Farrel wrote: >> Hi Tom, >>=20 >> You're right (a condition that must be scarily familiar for you). >>=20 >> Probably... >>=20 >> OLD >> o Collectively, the two ranges are known as Special Purpose = Labels >> (SPL). >>=20 >> o The special purpose labels from the lower range will be called >> Base Special Purpose Labels (bSPL). >>=20 >> o The special purpose labels from the higher range will be called >> Extended Special Purpose Labels (eSPL). >> NEW >> o Collectively, the two ranges (0-15, and 16-1048575) are known >> as Special Purpose Labels (SPL). >>=20 >> o The special purpose labels from the lower range (0-15) will be >> called Base Special Purpose Labels (bSPL). >>=20 >> o The special purpose labels from the higher range (16-1048575) >> will be called Extended Special Purpose Labels (eSPL). The >> reserved values 0-15 from the 'Extended Special-Purpose MPLS >> Label Values' registry do not need a name as they can never = be >> used. >> END >=20 > Yes, clearer. >=20 > Perhaps > " The > reserved values 0-15 from the 'Extended Special-Purpose MPLS > Label Values' registry do not need a name as they are not available = for allocation. " > to tie in with the wording of IANA. They SHOULD NOT or MUST NOT be = used but I can see some independent-minded organisation deciding that = because noone else will ever use them then they can and they will so I = think 'can never be used' is not quite right. They can never be = allocated so we do not need an identifier for them, which is what I am = wanting to express. >=20 > I note that this is Informational and so RFC2119 language is best = avoided. >=20 > Tom Petch There is no history in the Internet of anyone ever treating a "never to = be used" value as an opportunity :)=20 How about: > " The > reserved values 0-15 from the 'Extended Special-Purpose MPLS > Label Values' registry do not need a name as they MUST NOT be used = =E2=80=9C Alternatively: > " The > reserved values 0-15 from the 'Extended Special-Purpose MPLS > Label Values=E2=80=99 registry are called the MUST NOT USE range = range as they MUST NOT be used. " - Stewart --Apple-Mail=_603A504A-69B5-42A2-AF48-689CC25C6968 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8

On 24 Aug 2020, at 11:02, tom petch <daedulus@btconnect.com> wrote:

On 23/08/2020 = 21:47, Adrian Farrel wrote:
Hi Tom,

You're right (a condition that must be scarily familiar for = you).

Probably...

OLD
   o  Collectively, the = two ranges are known as Special Purpose Labels
      (SPL).

   o  The special purpose labels from the = lower range will be called
      Base Special Purpose = Labels (bSPL).

   o =  The special purpose labels from the higher range will be called
      Extended Special Purpose = Labels (eSPL).
NEW
   o =  Collectively, the two ranges (0-15, and 16-1048575) are known
       as Special Purpose = Labels (SPL).

   o  The = special purpose labels from the lower range (0-15) will be
       called Base Special = Purpose Labels (bSPL).

   o =  The special purpose labels from the higher range (16-1048575)
        will be = called Extended Special Purpose Labels (eSPL).  The
        reserved = values 0-15 from the 'Extended Special-Purpose MPLS
        Label Values' = registry do not need a name as they can never be
        used.
END

Yes, clearer.

Perhaps
"       The
   reserved values 0-15 from the 'Extended = Special-Purpose MPLS
   Label Values' registry do not need a name = as they are not available for allocation. "
to tie in = with the wording of IANA.  They SHOULD NOT or MUST NOT be used but = I can see some independent-minded organisation deciding that because = noone else will ever use them then they can and they will so I think = 'can never be used' is not quite right.  They can never be = allocated so we do not need an identifier for them, which is what I am = wanting to express.

I note that this is Informational and so RFC2119 language is = best avoided.

Tom = Petch


There is no history in = the Internet of anyone ever treating a "never to be used" value as an = opportunity :) 

How about:

"       The
   reserved values 0-15 from the 'Extended = Special-Purpose MPLS
   Label = Values' registry do not need a name as they MUST NOT be used = =E2=80=9C

Alternatively:

"       The
   reserved values 0-15 from the 'Extended = Special-Purpose MPLS
   Label = Values=E2=80=99 registry are called the MUST NOT USE range range as they = MUST NOT be used. "

- Stewart




= --Apple-Mail=_603A504A-69B5-42A2-AF48-689CC25C6968-- From nobody Mon Aug 24 22:14:23 2020 Return-Path: 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 453153A0A00; Mon, 24 Aug 2020 22:14:21 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.945 X-Spam-Level: X-Spam-Status: No, score=-0.945 tagged_above=-999 required=5 tests=[NICE_REPLY_A=-0.948, SPF_HELO_NONE=0.001, SPF_NONE=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 78N00MjEp0cR; Mon, 24 Aug 2020 22:14:19 -0700 (PDT) Received: from pipi.pi.nu (pipi.pi.nu [83.168.239.141]) (using TLSv1.1 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 914993A09FC; Mon, 24 Aug 2020 22:14:17 -0700 (PDT) Received: from [192.168.1.19] (unknown [122.2.96.196]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: loa@pi.nu) by pipi.pi.nu (Postfix) with ESMTPSA id 98B51326C7B; Tue, 25 Aug 2020 07:14:11 +0200 (CEST) To: Kireeti Kompella , tom petch , "adrian@olddog.co.uk" , "last-call@ietf.org" Cc: Kireeti Kompella , "mpls@ietf.org" , "draft-ietf-mpls-spl-terminology@ietf.org" , "mpls-chairs@ietf.org" , "db3546@att.com" References: <159725809676.26545.11479682416116858436@ietfa.amsl.com> <5F3D523E.2050805@btconnect.com> <08eb01d6798e$8cde63b0$a69b2b10$@olddog.co.uk> <5F439021.7050804@btconnect.com> <7F8C4934-21E6-43AA-9797-501BFDFF3BD1@juniper.net> From: Loa Andersson Message-ID: Date: Tue, 25 Aug 2020 13:13:47 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: <7F8C4934-21E6-43AA-9797-501BFDFF3BD1@juniper.net> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Archived-At: Subject: Re: [mpls] [Last-Call] Last Call: (Special Purpose Label terminology) to Informational RFC X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 Aug 2020 05:14:21 -0000 WG, co-authors, Deborah I think I made a mistake when using "range" as I did in the text. We are in IANA rerritory and we need to use the words as IANA uses them. A range is everything we lay claim to, so we say that we have this many code points and then we apply registration procedures to them. For the bSPLs this is simple the range is 0-15, and there is only one registration procedure - "Standard Action". For the eSPLs it is a bit more complicated, but I contribute to the complexity in the way I used "range". The range for the eSPL is 0-1048575 (20 bits). The regostration procedures are: 0-15 Reserved (note never to be assigned). 16-239 Standard action (code point 16 and 15 are assigned) 240-255 Experimental Use (note: Reserved not to be assigned) 256-1048575 Reserved (Note: To be made available for allocation only by a standards tarack RFC). Modulo an agreement on this AD, co-authors, commentors) I think it is possible to clean up the draft and post a new version. Deborah should I d that? /Loa On 25/08/2020 01:28, Kireeti Kompella wrote: > Thanks, Tom, for your feedback. > > The two ranges (0-15, 16-1048575) have the unfortunate property of being contiguous and thus appearing related, but they are completely unrelated: one is for solo labels, the other is for the second label of a composite special purpose label. This unintended confluence may be aggravated by referring to the ranges are "lower" and "upper". I would get rid of these terms as follows: > > NEW > o Collectively, the two (unrelated) ranges (0-15 and 16-1048575) are > known as Special Purpose Labels (SPL). > > o Special purpose labels from the range 0-15 are > called Base Special Purpose Labels (bSPL). > > o Special purpose labels from the range 16-1048575 > are called Extended Special Purpose Labels (eSPL). The > reserved values 0-15 from the 'Extended Special-Purpose MPLS > Label Values' registry do not need a name as they are not available > for allocation. > END > > (change of tense, as readers of the RFC will be seeing a fait accompli.) > > Kireeti. > > On 8/24/20, 03:02, "tom petch" wrote: > > [External Email. Be cautious of content] > > > On 23/08/2020 21:47, Adrian Farrel wrote: > > Hi Tom, > > > > You're right (a condition that must be scarily familiar for you). > > > > Probably... > > > > OLD > > o Collectively, the two ranges are known as Special Purpose Labels > > (SPL). > > > > o The special purpose labels from the lower range will be called > > Base Special Purpose Labels (bSPL). > > > > o The special purpose labels from the higher range will be called > > Extended Special Purpose Labels (eSPL). > > NEW > > o Collectively, the two ranges (0-15, and 16-1048575) are known > > as Special Purpose Labels (SPL). > > > > o The special purpose labels from the lower range (0-15) will be > > called Base Special Purpose Labels (bSPL). > > > > o The special purpose labels from the higher range (16-1048575) > > will be called Extended Special Purpose Labels (eSPL). The > > reserved values 0-15 from the 'Extended Special-Purpose MPLS > > Label Values' registry do not need a name as they can never be > > used. > > END > > Yes, clearer. > > Perhaps > " The > reserved values 0-15 from the 'Extended Special-Purpose MPLS > Label Values' registry do not need a name as they are not available > for allocation. " > to tie in with the wording of IANA. They SHOULD NOT or MUST NOT be used > but I can see some independent-minded organisation deciding that because > noone else will ever use them then they can and they will so I think > 'can never be used' is not quite right. They can never be allocated so > we do not need an identifier for them, which is what I am wanting to > express. > > I note that this is Informational and so RFC2119 language is best avoided. > > Tom Petch > > > Best, > > Adrian > > > > -----Original Message----- > > From: tom petch > > Sent: 19 August 2020 17:25 > > To: last-call@ietf.org > > Cc: mpls@ietf.org; draft-ietf-mpls-spl-terminology@ietf.org; db3546@att.com; > > mpls-chairs@ietf.org > > Subject: Re: Last Call: (Special > > Purpose Label terminology) to Informational RFC > > > > I find this confusing. > > > > It specifies two ranges 0-15 and 0-1048575 the latter being subdivided > > into ranges 0-15 16-239 etc and then talks of the lower range and the > > higher range; is the higher range 0-1048575 or 16-239 or 16-1048575 or ...? > > Lesser and greater or first and second or smaller and larger .. I might > > find unambiguous but reading this with an innocent eye, I find higher > > ambiguous. > > > > And in Security, 'It does not effect the forwarding ...' Well, no, it > > would likely not affect it either:-) > > > > Tom Petch > > > > > > > > On 12/08/2020 19:48, The IESG wrote: > >> > >> The IESG has received a request from the Multiprotocol Label Switching WG > >> (mpls) to consider the following document: - 'Special Purpose Label > >> terminology' > >> as Informational RFC > >> > > > Juniper Business Use Only > -- Loa Andersson email: loa@pi.nu Senior MPLS Expert loa.pi.nu@gmail.com Bronze Dragon Consulting phone: +46 739 81 21 64 From nobody Tue Aug 25 00:09:58 2020 Return-Path: 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 4B8B23A0B30; Tue, 25 Aug 2020 00:09:53 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 1.001 X-Spam-Level: * X-Spam-Status: No, score=1.001 tagged_above=-999 required=5 tests=[DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, THIS_AD=1.199, URIBL_BLOCKED=0.001] autolearn=no autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.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 Dhw-eeUAVXLP; Tue, 25 Aug 2020 00:09:51 -0700 (PDT) Received: from mail-wr1-x435.google.com (mail-wr1-x435.google.com [IPv6:2a00:1450:4864:20::435]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id F2F723A0B2F; Tue, 25 Aug 2020 00:09:50 -0700 (PDT) Received: by mail-wr1-x435.google.com with SMTP id a5so11591304wrm.6; Tue, 25 Aug 2020 00:09:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=content-transfer-encoding:mime-version:subject:from:in-reply-to :date:cc:message-id:references:to; bh=mxHRwu6BvwogNzaLNaKr+gkN2TyuYEqTJj/9xVvJvzg=; b=LI95dpRMKfH6XECsgzh/J7/Ip2LhGm/gd5U00sxy6Jmfp9X2WuErMKxQstP6DuaBNJ mU77UjS6+0ATkK7BlPj2ZJ262DhEq2q7YxAnuGSdxA2ApWOrYyBY/pLd+YZQ26JGLp+M 1+2oXLwbJsTKqeWuBrJg2tnFyNU9ydfP6spvIUIc8AmuuDyKEMGNUqwaRjjU+QVZC5qo 0Q0b4trkJ/Hlyzh8rxYx5qw+I6bhGOy8WOOUmZqYcf9OVs7N0cNm5R9Q/4A7rBP/Vbni GbunR6lI32pA1ZmQVIuMOo5367hlpD9Rdd8+N2FDdSs7vn4HjYw/iPbN0nPCI3RsygHN Pn+A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:content-transfer-encoding:mime-version:subject :from:in-reply-to:date:cc:message-id:references:to; bh=mxHRwu6BvwogNzaLNaKr+gkN2TyuYEqTJj/9xVvJvzg=; b=PFIGd1GmDckzR9pM8og8+oO2K3qGRzcv+f0fOisj5rpU8MEHYwfMlxd7PRaV+BPZ3Y fAMgl2hzitogQzQ8UUkRMcL2EQF++1U8hY6/GJdCBBxmYVwsTw1hG7SK9O/xLL/iWQuo bxYHQlvcAuk0bVzOn6LLC8mJpEgo2h7U3TWonmq1icBWUJWRG2gEGRtYZtKxXvj4fc6h zDoaf8WOl5Rz+hsKOiYFwTmZ6LrV44567rsgIoBS5tCqOgIwItJt7Fysro2nGeyP8W1s LBdCt3qUjOTk0wB8ldBub3YVuh5cvLRXshRtbnnXOHL/g/SdtGgLp57yDglW5KmyvTIC FUPw== X-Gm-Message-State: AOAM533uvgFfqNejvfzMve4lGVmPiWNiSdxFBmDESmXrJEgFEh6AVsND /6mgEyqpT86wh1kz35RE0Lg= X-Google-Smtp-Source: ABdhPJw4pDDJhTKM8A31loCUi2ISZWvzILd9nnbsu/btuWbqVRzJHaaC9wzgqMDzNnjZd6s1WQ1owA== X-Received: by 2002:adf:9561:: with SMTP id 88mr8935037wrs.240.1598339388824; Tue, 25 Aug 2020 00:09:48 -0700 (PDT) Received: from [192.168.178.27] ([62.3.64.16]) by smtp.gmail.com with ESMTPSA id x133sm3974223wmg.39.2020.08.25.00.09.47 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 25 Aug 2020 00:09:48 -0700 (PDT) Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (1.0) From: Stewart Bryant In-Reply-To: Date: Tue, 25 Aug 2020 08:09:45 +0100 Cc: Kireeti Kompella , tom petch , "adrian@olddog.co.uk" , "last-call@ietf.org" , Kireeti Kompella , "mpls@ietf.org" , "draft-ietf-mpls-spl-terminology@ietf.org" , "mpls-chairs@ietf.org" Message-Id: <3AA1D563-9D16-4A0B-9AF5-D4BA2B55C40A@gmail.com> References: To: Loa Andersson X-Mailer: iPad Mail (17G80) Archived-At: Subject: Re: [mpls] [Last-Call] Last Call: (Special Purpose Label terminology) to Informational RFC X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 Aug 2020 07:09:53 -0000 Loa Given history I don=E2=80=99t think =E2=80=9Cnever to be assigned=E2=80=9D i= s strong enough, they need to be =E2=80=9Cnever to be used=E2=80=9D, else so= meone is going to treat them as first come first served, and then squat on t= hem, and then make them a de-facto standards allocated value. Stewart Sent from my iPad > On 25 Aug 2020, at 06:14, Loa Andersson wrote: >=20 > =EF=BB=BFWG, co-authors, Deborah >=20 > I think I made a mistake when using "range" as I did in the text. >=20 > We are in IANA rerritory and we need to use the words as IANA uses > them. >=20 > A range is everything we lay claim to, so we say that we have this many > code points and then we apply registration procedures to them. >=20 > For the bSPLs this is simple the range is 0-15, and there is only one regi= stration procedure - "Standard Action". >=20 > For the eSPLs it is a bit more complicated, but I contribute to the comple= xity in the way I used "range". >=20 > The range for the eSPL is 0-1048575 (20 bits). >=20 > The regostration procedures are: >=20 > 0-15 Reserved (note never to be assigned). > 16-239 Standard action > (code point 16 and 15 are assigned) > 240-255 Experimental Use (note: Reserved not to be assigned) > 256-1048575 Reserved (Note: To be made available for allocation only by > a standards tarack RFC). >=20 > Modulo an agreement on this AD, co-authors, commentors) I think it is > possible to clean up the draft and post a new version. >=20 > Deborah should I d that? >=20 >=20 > /Loa >=20 >> On 25/08/2020 01:28, Kireeti Kompella wrote: >>=20 >> Thanks, Tom, for your feedback. >> The two ranges (0-15, 16-1048575) have the unfortunate property of being c= ontiguous and thus appearing related, but they are completely unrelated: one= is for solo labels, the other is for the second label of a composite specia= l purpose label. This unintended confluence may be aggravated by referring t= o the ranges are "lower" and "upper". I would get rid of these terms as fol= lows: >> NEW >> o Collectively, the two (unrelated) ranges (0-15 and 16-1048575) ar= e >> known as Special Purpose Labels (SPL). >> o Special purpose labels from the range 0-15 are >> called Base Special Purpose Labels (bSPL). >> o Special purpose labels from the range 16-1048575 >> are called Extended Special Purpose Labels (eSPL). The >> reserved values 0-15 from the 'Extended Special-Purpose MPLS >> Label Values' registry do not need a name as they are not avail= able >> for allocation. >> END >> (change of tense, as readers of the RFC will be seeing a fait accompli.) >> Kireeti. >> On 8/24/20, 03:02, "tom petch" wrote: >> [External Email. Be cautious of content] >> On 23/08/2020 21:47, Adrian Farrel wrote: >> > Hi Tom, >> > >> > You're right (a condition that must be scarily familiar for you). >> > >> > Probably... >> > >> > OLD >> > o Collectively, the two ranges are known as Special Purpose La= bels >> > (SPL). >> > >> > o The special purpose labels from the lower range will be call= ed >> > Base Special Purpose Labels (bSPL). >> > >> > o The special purpose labels from the higher range will be cal= led >> > Extended Special Purpose Labels (eSPL). >> > NEW >> > o Collectively, the two ranges (0-15, and 16-1048575) are know= n >> > as Special Purpose Labels (SPL). >> > >> > o The special purpose labels from the lower range (0-15) will b= e >> > called Base Special Purpose Labels (bSPL). >> > >> > o The special purpose labels from the higher range (16-1048575= ) >> > will be called Extended Special Purpose Labels (eSPL). Th= e >> > reserved values 0-15 from the 'Extended Special-Purpose MP= LS >> > Label Values' registry do not need a name as they can neve= r be >> > used. >> > END >> Yes, clearer. >> Perhaps >> " The >> reserved values 0-15 from the 'Extended Special-Purpose MPLS >> Label Values' registry do not need a name as they are not availa= ble >> for allocation. " >> to tie in with the wording of IANA. They SHOULD NOT or MUST NOT be u= sed >> but I can see some independent-minded organisation deciding that beca= use >> noone else will ever use them then they can and they will so I think >> 'can never be used' is not quite right. They can never be allocated s= o >> we do not need an identifier for them, which is what I am wanting to >> express. >> I note that this is Informational and so RFC2119 language is best avo= ided. >> Tom Petch >> > Best, >> > Adrian >> > >> > -----Original Message----- >> > From: tom petch >> > Sent: 19 August 2020 17:25 >> > To: last-call@ietf.org >> > Cc: mpls@ietf.org; draft-ietf-mpls-spl-terminology@ietf.org; db3546= @att.com; >> > mpls-chairs@ietf.org >> > Subject: Re: Last Call: (S= pecial >> > Purpose Label terminology) to Informational RFC >> > >> > I find this confusing. >> > >> > It specifies two ranges 0-15 and 0-1048575 the latter being subdivi= ded >> > into ranges 0-15 16-239 etc and then talks of the lower range and t= he >> > higher range; is the higher range 0-1048575 or 16-239 or 16-1048575= or ...? >> > Lesser and greater or first and second or smaller and larger .. I m= ight >> > find unambiguous but reading this with an innocent eye, I find high= er >> > ambiguous. >> > >> > And in Security, 'It does not effect the forwarding ...' Well, no, i= t >> > would likely not affect it either:-) >> > >> > Tom Petch >> > >> > >> > >> > On 12/08/2020 19:48, The IESG wrote: >> >> >> >> The IESG has received a request from the Multiprotocol Label Switc= hing WG >> >> (mpls) to consider the following document: - 'Special Purpose Labe= l >> >> terminology' >> >> as Informational RFC >> >> >> Juniper Business Use Only >=20 > --=20 >=20 > Loa Andersson email: loa@pi.nu > Senior MPLS Expert loa.pi.nu@gmail.com > Bronze Dragon Consulting phone: +46 739 81 21 64 >=20 > _______________________________________________ > mpls mailing list > mpls@ietf.org > https://www.ietf.org/mailman/listinfo/mpls From nobody Tue Aug 25 00:26:49 2020 Return-Path: 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 71B643A0B3F; Tue, 25 Aug 2020 00:26:47 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.199 X-Spam-Level: X-Spam-Status: No, score=-0.199 tagged_above=-999 required=5 tests=[DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); 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Tue, 25 Aug 2020 00:26:45 -0700 (PDT) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit From: Loa Andersson Mime-Version: 1.0 (1.0) Date: Tue, 25 Aug 2020 15:26:43 +0800 Message-Id: <7FF1768F-D8A2-4CF7-A9A0-5A7042154E22@gmail.com> Cc: Loa Andersson , "mpls@ietf.org" , Kireeti Kompella , Kireeti Kompella , "mpls-chairs@ietf.org" , "last-call@ietf.org" , "draft-ietf-mpls-spl-terminology@ietf.org" , tom petch To: Stewart Bryant X-Mailer: iPhone Mail (17G80) Archived-At: Subject: Re: [mpls] [Last-Call] Last Call: (Special Purpose Label terminology) to Informational RFC X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 Aug 2020 07:26:48 -0000 Stewart, I view that as a friendly ammendment. /Loa Sent from my iPhone > On 25 Aug 2020, at 15:11, Stewart Bryant wrote: > From nobody Wed Aug 26 20:10:35 2020 Return-Path: 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 4825C3A0C9A; Wed, 26 Aug 2020 20:10:33 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.897 X-Spam-Level: X-Spam-Status: No, score=-1.897 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_NONE=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 dhbspyPX1oKE; Wed, 26 Aug 2020 20:10:31 -0700 (PDT) Received: from pipi.pi.nu (pipi.pi.nu [83.168.239.141]) (using TLSv1.1 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id ADD053A0C9E; Wed, 26 Aug 2020 20:10:30 -0700 (PDT) Received: from [192.168.1.19] (unknown [122.2.96.196]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: loa@pi.nu) by pipi.pi.nu (Postfix) with ESMTPSA id DFC5C326C7B; Thu, 27 Aug 2020 05:10:25 +0200 (CEST) References: <159839313932.2001.15256610356742310223@ietfa.amsl.com> To: "mpls@ietf.org" Cc: "mpls-chairs@ietf.org" From: Loa Andersson X-Forwarded-Message-Id: <159839313932.2001.15256610356742310223@ietfa.amsl.com> Message-ID: <074c6300-1239-c911-e004-a61ae7b55635@pi.nu> Date: Thu, 27 Aug 2020 11:10:16 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: <159839313932.2001.15256610356742310223@ietfa.amsl.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Archived-At: Subject: [mpls] Fwd: NomCom 2020: Call for nominations X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Aug 2020 03:10:33 -0000 Working Group, Please make sure that you nominate the people you want to see in the IETF leadership. /Loa mpls wg co-chair -------- Forwarded Message -------- Subject: NomCom 2020: Call for nominations Date: Tue, 25 Aug 2020 15:05:39 -0700 From: NomCom Chair 2020 To: IETF Announcement List CC: ietf@ietf.org The 2020-21 IETF Nominating Committee (NomCom) is seeking nominations from now until October 6, 2020. The open positions being considered by this year's NomCom can be found at the end of this email and also on this year's NomCom website: https://datatracker.ietf.org/nomcom/2020/ Nominations may be made by selecting the Nominate link at the top of the NomCom 2020 home page, or by visiting the following URL: https://datatracker.ietf.org/nomcom/2020/nominate/ Note: Nominations made using the web tool require an ietf.org datatracker account. You can create a datatracker ietf.org account if you don't have one already by visiting the following URL: https://datatracker.ietf.org/accounts/create/ If you are unable to use the web form, nominations may instead be made by email to nomcom-20 at ietf dot org. If using email, please include the word "Nominate" in the Subject and indicate in the email who is being nominated, their email address (to confirm acceptance of the nomination), and the position for which you are making the nomination. If you are nominating someone other than yourself, please tell us if we may tell the nominee that you were the one who made the nomination. If you wish to nominate someone via email for more than one position, please use separate emails to do so. Self-nomination is welcome! Willing nominees will be asked to fill out a questionnaire specific to the position for which they are nominated. The questionnaires will be available no later than September 1, 2020 and have a submission deadline of October 13, 2019. Most are already posted. NomCom 2020-21 will follow the policy for "Open Disclosure of Willing Nominees" described in BCP 10/RFC 8713: "The list of nominees willing to be considered for positions under review in the current NomCom cycle is not confidential". Willing nominees for each position will be listed in a publicly accessible way, e.g., anyone with a datatracker account may access the lists. Additionally, the nomination form asks if we may share your own name with the nominee. In all other ways, the confidentiality requirements of BCP 10 remain in effect. All feedback and all NomCom deliberations will remain confidential and will not be disclosed. There is a field on the form you can mark in order to allow the NomCom to tell the nominee that you were the one who made the nomination. This defaults to “no” - so if you don't mark the field we won’t tell. In order to ensure time to collect sufficient community feedback about each of the willing nominees, nominations must be received by the NomCom on or before October 6, 2020. Please submit your nominations as early as possible for the sake of your nominees. Note that nominations should not wait for management permission, as it is easier to decline the nomination than put one in late. The NomCom appoints individuals to fill open slots on the IAB, IESG, the IETF Trust and the LLC Board. The list of people and posts whose terms end with the March 2021 IETF meeting, and thus the positions for which this NomCom is responsible, follows: LLC Board - Maja Andjelkovic IETF Trust - Joel Halpern IAB - Jari Arkko - Jeff Tantsura - Mark Nottingham * - Stephen Farrell - Wes Hardaker - Zhenbin Li IESG - Alissa Cooper, IETF Chair/GEN AD * - Alvaro Retana, RTG AD - Deborah Brungard, RTG AD - Magnus Westerlund, TSV AD - Roman Danyliw, SEC AD - Warren Kumari, OPS AD * - have indicated that they do not intend to accept a renomination. This information is always up to date on https://datatracker.ietf.org/nomcom/2020/ Please be resourceful in identifying possible candidates for these positions, as developing our talent is a very crucial requirement for the IETF, and also, please consider accepting a nomination. You'll find extensive information about specific positions, in individual tabs at: https://datatracker.ietf.org/nomcom/2020/requirements/ In addition to nominations, the NomCom seeks community input on the positions themselves. We need and welcome the community's views and input on the jobs within each organization. If you have ideas on the positions’ responsibilities (more, less, different), please let us know. Please send suggestions and feedback about this to nomcom-20 at ietf dot org. Thank you for your help in identifying qualified nominees! Thanks, Barbara IETF NomCom Chair 2020-2021 Barbara Stark nomcom-chair-2020 at ietf dot org -- Loa Andersson email: loa@pi.nu Senior MPLS Expert loa.pi.nu@gmail.com Bronze Dragon Consulting phone: +46 739 81 21 64 From nobody Thu Aug 27 03:40:23 2020 Return-Path: X-Original-To: mpls@ietf.org Delivered-To: mpls@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id EF9B73A0B4A; Thu, 27 Aug 2020 03:40:21 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: mpls@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 7.14.1 Auto-Submitted: auto-generated Precedence: bulk Reply-To: mpls@ietf.org Message-ID: <159852482191.27940.10389498615559279426@ietfa.amsl.com> Date: Thu, 27 Aug 2020 03:40:21 -0700 Archived-At: Subject: [mpls] I-D Action: draft-ietf-mpls-sfl-framework-10.txt X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Aug 2020 10:40:22 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Multiprotocol Label Switching WG of the IETF. Title : Synonymous Flow Label Framework Authors : Stewart Bryant Mach Chen George Swallow Siva Sivabalan Gregory Mirsky Filename : draft-ietf-mpls-sfl-framework-10.txt Pages : 10 Date : 2020-08-27 Abstract: RFC 8372 (MPLS Flow Identification Considerations) describes the requirement for introducing flow identities within the MPLS architecture. This document describes a method of accomplishing this by using a technique called Synonymous Flow Labels in which labels which mimic the behaviour of other labels provide the identification service. These identifiers can be used to trigger per-flow operations on the packet at the receiving label switching router. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-mpls-sfl-framework/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-mpls-sfl-framework-10 https://datatracker.ietf.org/doc/html/draft-ietf-mpls-sfl-framework-10 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-mpls-sfl-framework-10 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Thu Aug 27 06:03:50 2020 Return-Path: X-Original-To: mpls@ietf.org Delivered-To: mpls@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 577753A0819; Thu, 27 Aug 2020 06:03:48 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Samuel Weiler via Datatracker To: Cc: last-call@ietf.org, draft-ietf-mpls-spl-terminology.all@ietf.org, mpls@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 7.14.1 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <159853342829.4954.15202194373803926022@ietfa.amsl.com> Reply-To: Samuel Weiler Date: Thu, 27 Aug 2020 06:03:48 -0700 Archived-At: Subject: [mpls] Secdir last call review of draft-ietf-mpls-spl-terminology-03 X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Aug 2020 13:03:48 -0000 Reviewer: Samuel Weiler Review result: Ready None to see here; move along. This clarifies the name of an IANA registry and explains why such clarification is needed. There is no security impact. From nobody Fri Aug 28 01:24:12 2020 Return-Path: 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 4B7543A1637; Fri, 28 Aug 2020 01:24:06 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.098 X-Spam-Level: X-Spam-Status: No, score=-2.098 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, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.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 i7p0Q916XC3U; Fri, 28 Aug 2020 01:24:04 -0700 (PDT) Received: from mail-wm1-x329.google.com (mail-wm1-x329.google.com [IPv6:2a00:1450:4864:20::329]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 2B8E23A1634; Fri, 28 Aug 2020 01:24:04 -0700 (PDT) Received: by mail-wm1-x329.google.com with SMTP id z9so142200wmk.1; Fri, 28 Aug 2020 01:24:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:message-id:mime-version:subject:date:in-reply-to:cc:to :references; bh=AdL0Em5iB86K+OM+qbuvgAvNvK2imBZZOKXVLnREhhg=; b=reCH6nOYgOXBxLMNHVEf5u0Z8iHfE6QeksJtXpHSdX3FUvWHQXdvP1etvLhVxoBeAl W7mC+T9dYDTNqikpn668cBhwIqNRQCvpJEPnfv9mYvWCQw3yJGwvqwPQf3WwMgYBjg9Z PMxRywN8PY9vtHFKOC8HihkgsSu60sqYxvb6qNhpxV/qLlcz05O/ufS4iQDBXLGnX5DE CzoZZesoB08l2iQLMDSvSV5Rk/YaGElgbz6kosEWfVZOyA8koAksacjVmi1wDybnJ4HU E0+2qAALjCQo5sINDM7Khde+/ioaVZHo6LIolcyB3elNt5lmbltgGMCJeSpBFbsqUDLj lYXQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:message-id:mime-version:subject:date :in-reply-to:cc:to:references; bh=AdL0Em5iB86K+OM+qbuvgAvNvK2imBZZOKXVLnREhhg=; b=RH4FrCWwvyzUrzuYhcxfNwU1DQgvNxGXM3kNXQ1Wc0nFTVgU6ZyPqG2EafD4GCea92 Uo7whLw+p70wOBymI9u1/pYBAeaD0mYFEaCU8PFIHJ0ZjEPIYTbJXT8H3zTdBucJiYGn 8djtajdbYx99e0aBxI1YrqiQfAWoE/XX8ds0BCbHvO66CkDvoFeksSgP+xMFAu0ky+6q 434KXsDvr/KsAm8hHMmLiZFs7V4xaEYh+W2o0fFrkOgJhy6jTZGJ1xgPgrJLZFPT9/e8 LvuTffGN7JjCdcnLPK2uhwUgCAuzDuswLR0umFQ5YhwA9e36CZoAErbYQ/Rd+oDhd4td B2EA== X-Gm-Message-State: AOAM5320u2ex3zcH68gcA79SZAD56juZlGWYowjk0ijxStb4UWiF2uHM at6RAyPBdrBIAHCzuyfEgfY= X-Google-Smtp-Source: ABdhPJyqtV87c/dkbYEXotyvxIyMBr892uZcJIZApapnT+DUbhriwYqCve2QEWJxOqKef6ier6U9GQ== X-Received: by 2002:a05:600c:2185:: with SMTP id e5mr485745wme.73.1598603042269; Fri, 28 Aug 2020 01:24:02 -0700 (PDT) Received: from appleton.fritz.box ([62.3.64.16]) by smtp.gmail.com with ESMTPSA id 92sm813612wra.19.2020.08.28.01.24.01 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 28 Aug 2020 01:24:01 -0700 (PDT) From: Stewart Bryant Message-Id: <6E3FD12F-322C-4D17-80E9-D876084D4D56@gmail.com> Content-Type: multipart/alternative; boundary="Apple-Mail=_A25E59C1-3853-4527-A2B0-BCB81321421E" Mime-Version: 1.0 (Mac OS X Mail 13.4 \(3608.120.23.2.1\)) Date: Fri, 28 Aug 2020 09:24:00 +0100 In-Reply-To: <08eb01d6798e$8cde63b0$a69b2b10$@olddog.co.uk> To: Adrian Farrel , tom petch , Last Call , draft-ietf-mpls-spl-terminology@ietf.org, mpls , mpls-chairs , "BRUNGARD, DEBORAH A" References: <159725809676.26545.11479682416116858436@ietfa.amsl.com> <5F3D523E.2050805@btconnect.com> <08eb01d6798e$8cde63b0$a69b2b10$@olddog.co.uk> X-Mailer: Apple Mail (2.3608.120.23.2.1) Archived-At: Subject: Re: [mpls] [Last-Call] Last Call: (Special Purpose Label terminology) to Informational RFC X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Aug 2020 08:24:07 -0000 --Apple-Mail=_A25E59C1-3853-4527-A2B0-BCB81321421E Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii First a procedurally point: "This draft updates RFC7274" RFC7274 is standards track, and so believe that this terminology draft = also needs to be standards track. Second technical matter: In discussing this terminology draft there has been some confusion = regarding the whether the construct XL/ELI/EL (or <15><7> as I have = described it elsewhere in the thread) is permitted. Re-reading RFC7274 there is text that seems to expressly forbids the = construct XL/ELI/EL (or <15><7>). The text=20 "Values 0-15 of the "Extended Special-Purpose MPLS Label Values" registry are set aside as reserved. " Is quite clear that the whole of that range is reserved.=20 In the IANA section it says: +---------------------+---------------------------------------------+ | Range | Allocation Policy | +---------------------+---------------------------------------------+ | 0 - 15 | Reserved. Never to be made available for | | | allocation. | That text seem to imply never to be deliberately used. The confusion arrises because of the text in RFC7274 that notes that = legacy implementations might not notice that the construct XL/ELI/EL is = present. It is perfectly reasonable to provide the exception for the = legacy hardware, however the the text that does seems confusing. I would = like to propose that we address this confusion by including a further = update to RFC7274 in this terminology draft: OLD Values 0-15 of the "Extended Special-Purpose MPLS Label Values" registry are set aside as reserved. Furthermore, values 0-6 and 8-15 MUST NOT appear in the data plane following an XL; an LSR processing a packet with an XL at the top of the label stack followed by a label with value 0-6 or 8-15 MUST drop the packet. Label 7 (when received) retains its meaning as Entropy Label Indicator (ELI) whether a regular special-purpose label or an ESPL; this is because of backwards compatibility with existing implemented and deployed code and hardware that looks for the ELI without verifying if the previous label is XL or not. However, when an LSR inserts an entropy label, it MUST insert the ELI as a regular special-purpose label, not as an ESPL. NEW Values 0-15 of the "Extended Special-Purpose MPLS Label Values" registry are set aside as reserved. Furthermore, an implementation MUST NOT place a label with value 0-15 in the label stack immediately = following an XL; an LSR processing a packet with an XL at the top of the label stack immediately followed by a label with value 0-15 MUST drop the = packet. When inspecting a label stack to find an Entropy Label Indicator (ELI - label 7) a pre-existing implementation may fail to inspect the previous label, and so not notice that it is an XL. Such systems can continue to process the entropy information and forward the packet = when the previous label is an XP without causing harm. However, the=20 packet will be dropped when the XL reaches the top of the stack at = another LSR. END This text clearly demonstrates that legacy LSRs are not expected to = police the <15><7> construct and that nothing bad will happen of = they do not. Longer term, I think we might be better served by generating an explicit = draft that defines the XL behaviour rather than mixing it in with text = on deallocation policy and the naming of parts of the registry. Best regards Stewart --Apple-Mail=_A25E59C1-3853-4527-A2B0-BCB81321421E Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=us-ascii First a procedurally = point:

"This draft = updates RFC7274"

RFC7274 is standards track, and so believe that this = terminology draft also needs to be standards track.

Second technical = matter:

In = discussing this terminology draft there has been some confusion = regarding the whether the construct XL/ELI/EL (or = <15><7><xxx> as I have described it elsewhere in the = thread) is permitted.
Re-reading RFC7274 there is = text that seems to expressly forbids the construct XL/ELI/EL (or = <15><7><xxx>).

The text 

"Values 0-15 of the "Extended = Special-Purpose MPLS Label Values"
registry are set aside = as reserved. "

Is quite clear that the whole of that range is = reserved. 

In the IANA section it says:

   =
+---------------------+---------------------------------------------+
   | Range               | Allocation Policy                           |
   +---------------------+---------------------------------------------+
   | 0 - 15              | Reserved.  Never to be made available for   |
   |                     | allocation.                                 =
|

That = text seem to imply never to be deliberately used.
The confusion arrises because of the = text in RFC7274 that notes that legacy implementations might not notice = that the construct XL/ELI/EL is present. It is perfectly reasonable to = provide the exception for the legacy hardware, however the the text that = does seems confusing. I would like to propose that we address this = confusion by including a further update to RFC7274 in this terminology = draft:

OLD
  Values 0-15 of the "Extended Special-Purpose MPLS = Label Values"
  registry are set aside as reserved. =  Furthermore, values 0-6 and 8-15
  MUST NOT = appear in the data plane following an XL; an LSR processing
  a packet with an XL at the top of the label stack = followed by a label
  with value 0-6 or 8-15 MUST = drop the packet.

  Label 7 (when = received) retains its meaning as Entropy Label
  = Indicator (ELI) whether a regular special-purpose label or an ESPL;
  this is because of backwards compatibility with = existing implemented
  and deployed code and hardware = that looks for the ELI without
  verifying if the = previous label is XL or not.  However, when an LSR
  inserts an entropy label, it MUST insert the ELI as a = regular
  special-purpose label, not as an ESPL.
NEW
  Values 0-15 of the "Extended = Special-Purpose MPLS Label Values"
  registry are set = aside as reserved.  Furthermore, an implementation
  MUST NOT place a label with value 0-15 in the label = stack immediately following
  an XL; an LSR = processing a packet with an XL at the top of the label
  stack immediately followed by a label with = value 0-15 MUST drop the packet.

  = When inspecting a label stack to find an Entropy Label Indicator
  (ELI - label 7) a pre-existing implementation may fail = to inspect the
  previous label, and so not = notice that  it is an XL.  Such systems can
  continue to process the entropy information and = forward the packet when the previous
  label is = an XP without causing harm. However, the 
  packet will be dropped when the XL reaches the top of = the stack at another LSR.
END

This text clearly demonstrates that = legacy LSRs are not expected to police the =  <15><7><xxx> construct and that nothing bad will = happen of they do not.

Longer term, I think we might be better served by generating = an explicit draft that defines the XL behaviour rather than mixing it in = with text on deallocation policy and the naming of parts of the = registry.

Best = regards

Stewart


= --Apple-Mail=_A25E59C1-3853-4527-A2B0-BCB81321421E-- From nobody Fri Aug 28 02:58:32 2020 Return-Path: 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 AC96E3A166E; Fri, 28 Aug 2020 02:58:26 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.894 X-Spam-Level: X-Spam-Status: No, score=-1.894 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_NONE=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 54Es7tWiXUM9; Fri, 28 Aug 2020 02:58:24 -0700 (PDT) Received: from mta8.iomartmail.com (mta8.iomartmail.com [62.128.193.158]) (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 0E9B03A0838; Fri, 28 Aug 2020 02:58:22 -0700 (PDT) Received: from vs1.iomartmail.com (vs1.iomartmail.com [10.12.10.121]) by mta8.iomartmail.com (8.14.4/8.14.4) with ESMTP id 07S9wGv7030249; Fri, 28 Aug 2020 10:58:16 +0100 Received: from vs1.iomartmail.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 86F7B2203B; Fri, 28 Aug 2020 10:58:16 +0100 (BST) Received: from asmtp1.iomartmail.com (unknown [10.12.10.248]) by vs1.iomartmail.com (Postfix) with ESMTPS id 7180722044; Fri, 28 Aug 2020 10:58:16 +0100 (BST) Received: from LAPTOPK7AS653V ([84.51.134.114]) (authenticated bits=0) by asmtp1.iomartmail.com (8.14.4/8.14.4) with ESMTP id 07S9wFE9005672 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Fri, 28 Aug 2020 10:58:15 +0100 Reply-To: From: "Adrian Farrel" To: "'Stewart Bryant'" , "'tom petch'" , "'Last Call'" , , "'mpls'" , "'mpls-chairs'" , "'BRUNGARD, DEBORAH A'" References: <159725809676.26545.11479682416116858436@ietfa.amsl.com> <5F3D523E.2050805@btconnect.com> <08eb01d6798e$8cde63b0$a69b2b10$@olddog.co.uk> <6E3FD12F-322C-4D17-80E9-D876084D4D56@gmail.com> In-Reply-To: <6E3FD12F-322C-4D17-80E9-D876084D4D56@gmail.com> Date: Fri, 28 Aug 2020 10:58:15 +0100 Organization: Old Dog Consulting Message-ID: <04e401d67d21$c0265a20$40730e60$@olddog.co.uk> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_04E5_01D67D2A.21EDA850" X-Mailer: Microsoft Outlook 16.0 Content-Language: en-gb Thread-Index: AQF6F6a5eRNF7USBcsjJJyR2gvQXGAF0oomyAqpAaRwCcqBLManRhjQQ X-Originating-IP: 84.51.134.114 X-Thinkmail-Auth: adrian@olddog.co.uk X-TM-AS-GCONF: 00 X-TM-AS-Product-Ver: IMSVA-9.0.0.1623-8.2.0.1013-25630.006 X-TM-AS-Result: No--18.571-10.0-31-10 X-imss-scan-details: No--18.571-10.0-31-10 X-TMASE-Version: IMSVA-9.0.0.1623-8.2.1013-25630.006 X-TMASE-Result: 10--18.570500-10.000000 X-TMASE-MatchedRID: IeZYkn8zfFozx9GDMr0HvzYTypjB3iDVuikHZcC6ceAlfitSyR4HIVw8 +ziQ4gVnucg9dz4BB0Ybct6MEzra/oEoKjtxt7oWGUlF/M3Dxp8Ab5Yjyl8xHL0rWM4nIpJrRph daShSOy1jDHSD39IUGUYv0GYBShGX/21whnJ52IEiMpIfyuUBO0v3HgUK4EtRabJxhiIFjJlHqq R8SR8CEVlD3++HV+IfDJFRfyDbeq0bXQQXTyryDvSG/+sPtZVkQ5p+5M7krilQ3OD8q9D1sBG1o Z5GLaI6+RRjYXh/j7oyhML7jY7cx//E8pKAu+QtXK5keCa+bmgD3pUvHwpyrlrXKFPCbXO5L0rE o5ZEzjwDjWwg6cyPxtCPhVppkIXHColcGcxhU/qyBjDX4sGuTUjEWwwu715szFaj82CqF9nNN8E vtNwXeGjUSDfkturS5o1F9OpIH/Op+3FLcueO9TnLV1rDXtKlqb3/o5s+OcO0SH+Jst8K6SbwAX b4Z9zjiRxOSRn4ABOlBrV+KMJAP8C1mqtzsQy2cKUWtyuCqAAh9mNF8ZPJ2OJiUqjHevI02P2km /foiskfXv9twdNgIYM1BL1hWMtfrP6YwNCF5LstMfCdg6KRDQso9oEdJxF1Jt7ZZwvxOlT4IIF+ rykpCrc+9UK6qtSgYwMj0VlL/PiajZkb8TuLcyMJO6daqdyWH5AzpU0IM2Fe9JbKiTZnHoVg+E7 Q3H80K2peykPiuRzlCbHrmtz/sGBVLJ564D+b20204SCJw/pMJn8zcSZbbVTFKQBe714nOArqsG NfHKKo2BSkPW8j/fLwKBy8xSqPd6xKokXb2+WeAiCmPx4NwGmRqNBHmBvevqq8s2MNhPAL4KbF8 qbADGF5X5yuwTohDBbGvtcMofw3E8PAbCJ2l4hnbj+i++mPqc1WXSn3zjdWfiqdLR6IhpaIZ4hd qTks X-TMASE-SNAP-Result: 1.821001.0001-0-1-12:0,22:0,33:0,34:0-0 Archived-At: Subject: Re: [mpls] [Last-Call] Last Call: (Special Purpose Label terminology) to Informational RFC X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Aug 2020 09:58:27 -0000 This is a multipart message in MIME format. ------=_NextPart_000_04E5_01D67D2A.21EDA850 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit I like Stewart's suggestion (no surprise, because he and I spent some time discussing it). I *think* that the text in 7274 was trying to protect pre-existing implementations from the need to not process a label 7 that was found 'illegally' immediately after label 15. Two points apply: 1. This should never arise because an implementation MUST NOT build 15,7 2. It is not harmful to find and process the 7 wherever it is found I believe that 7274 used some poorly chosen words (blame the authors:-) when it said "MUST NOT appear in the data plane". The use of 2119 language needs to be limited to specific implementations, not (as here) philosophical or abstract concepts. Stewart's proposed change has several beneficial effects: a. Preserves the protection for pre-existing implementations b. Preserves the rules for building label stacks c. Is consistent with the IANA registry d. Does not need any fiddling with processing rules or the registry There is a downside: the document clearly needs to be returned to the working group to make this fix, tidy up the rest of the document, and re-establish WG consensus. Cheers, Adrian From: Stewart Bryant Sent: 28 August 2020 09:24 To: Adrian Farrel ; tom petch ; Last Call ; draft-ietf-mpls-spl-terminology@ietf.org; mpls ; mpls-chairs ; BRUNGARD, DEBORAH A Cc: Stewart Bryant Subject: Re: [Last-Call] Last Call: (Special Purpose Label terminology) to Informational RFC First a procedurally point: "This draft updates RFC7274" RFC7274 is standards track, and so believe that this terminology draft also needs to be standards track. Second technical matter: In discussing this terminology draft there has been some confusion regarding the whether the construct XL/ELI/EL (or <15><7> as I have described it elsewhere in the thread) is permitted. Re-reading RFC7274 there is text that seems to expressly forbids the construct XL/ELI/EL (or <15><7>). The text "Values 0-15 of the "Extended Special-Purpose MPLS Label Values" registry are set aside as reserved. " Is quite clear that the whole of that range is reserved. In the IANA section it says: +---------------------+---------------------------------------------+ | Range | Allocation Policy | +---------------------+---------------------------------------------+ | 0 - 15 | Reserved. Never to be made available for | | | allocation. | That text seem to imply never to be deliberately used. The confusion arrises because of the text in RFC7274 that notes that legacy implementations might not notice that the construct XL/ELI/EL is present. It is perfectly reasonable to provide the exception for the legacy hardware, however the the text that does seems confusing. I would like to propose that we address this confusion by including a further update to RFC7274 in this terminology draft: OLD Values 0-15 of the "Extended Special-Purpose MPLS Label Values" registry are set aside as reserved. Furthermore, values 0-6 and 8-15 MUST NOT appear in the data plane following an XL; an LSR processing a packet with an XL at the top of the label stack followed by a label with value 0-6 or 8-15 MUST drop the packet. Label 7 (when received) retains its meaning as Entropy Label Indicator (ELI) whether a regular special-purpose label or an ESPL; this is because of backwards compatibility with existing implemented and deployed code and hardware that looks for the ELI without verifying if the previous label is XL or not. However, when an LSR inserts an entropy label, it MUST insert the ELI as a regular special-purpose label, not as an ESPL. NEW Values 0-15 of the "Extended Special-Purpose MPLS Label Values" registry are set aside as reserved. Furthermore, an implementation MUST NOT place a label with value 0-15 in the label stack immediately following an XL; an LSR processing a packet with an XL at the top of the label stack immediately followed by a label with value 0-15 MUST drop the packet. When inspecting a label stack to find an Entropy Label Indicator (ELI - label 7) a pre-existing implementation may fail to inspect the previous label, and so not notice that it is an XL. Such systems can continue to process the entropy information and forward the packet when the previous label is an XP without causing harm. However, the packet will be dropped when the XL reaches the top of the stack at another LSR. END This text clearly demonstrates that legacy LSRs are not expected to police the <15><7> construct and that nothing bad will happen of they do not. Longer term, I think we might be better served by generating an explicit draft that defines the XL behaviour rather than mixing it in with text on deallocation policy and the naming of parts of the registry. Best regards Stewart ------=_NextPart_000_04E5_01D67D2A.21EDA850 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

I like = Stewart’s suggestion (no surprise, because he and I spent some = time discussing it).

 

I = *think* that the text in 7274 was trying to protect pre-existing = implementations from the need to not process a label 7 that was found = ‘illegally’ immediately after label 15. Two points = apply:

  1. This should never arise because an = implementation MUST NOT build 15,7
  2. It is not harmful to = find and process the 7 wherever it is = found

I believe that 7274 used some = poorly chosen words (blame the authors:-) when it said = “MUST NOT appear in the data plane”. The use of 2119 = language needs to be limited to specific implementations, not (as here) = philosophical or abstract concepts.

 

Stewart’s proposed change has several beneficial = effects:

  1. Preserves the protection for = pre-existing implementations
  2. Preserves the rules for = building label stacks
  3. Is consistent with the IANA = registry
  4. Does not need any fiddling with = processing rules or the registry

 

There is a = downside: the document clearly needs to be returned to the working group = to make this fix, tidy up the rest of the document, and re-establish WG = consensus.

 

Cheers,

Adrian

 

From: Stewart Bryant = <stewart.bryant@gmail.com>
Sent: 28 August 2020 = 09:24
To: Adrian Farrel <adrian@olddog.co.uk>; tom petch = <daedulus@btconnect.com>; Last Call <last-call@ietf.org>; = draft-ietf-mpls-spl-terminology@ietf.org; mpls <mpls@ietf.org>; = mpls-chairs <mpls-chairs@ietf.org>; BRUNGARD, DEBORAH A = <db3546@att.com>
Cc: Stewart Bryant = <stewart.bryant@gmail.com>
Subject: Re: [Last-Call] Last = Call: <draft-ietf-mpls-spl-terminology-03.txt> (Special Purpose = Label terminology) to Informational = RFC

 

First a = procedurally point:

 

"This draft updates = RFC7274"

 

RFC7274 is standards track, and so believe that this = terminology draft also needs to be standards = track.

 

Second technical matter:

 

In discussing this terminology draft there has been = some confusion regarding the whether the construct XL/ELI/EL (or = <15><7><xxx> as I have described it elsewhere in the = thread) is permitted.

Re-reading RFC7274 there is text that seems to = expressly forbids the construct XL/ELI/EL (or = <15><7><xxx>).

 

The text 

 

"Values 0-15 of the "Extended = Special-Purpose MPLS Label Values"
registry are set aside as = reserved. "

 

Is quite clear that the whole of that range is = reserved. 

 

In the IANA section it = says:

 

   =
+---------------------+---------------------------------------------+
   | =
Range           &n=
bsp;   | Allocation =
Policy           &=
nbsp;           &n=
bsp;   |
   =
+---------------------+---------------------------------------------+
   | 0 - =
15            =
;  | Reserved.  Never to be made available for   =
|
   =
|            =
         | =
allocation.          &n=
bsp;           &nb=
sp;          =
|

 

That text seem to imply never to be deliberately = used.

 

The confusion arrises because of the text in RFC7274 = that notes that legacy implementations might not notice that the = construct XL/ELI/EL is present. It is perfectly reasonable to provide = the exception for the legacy hardware, however the the text that does = seems confusing. I would like to propose that we address this confusion = by including a further update to RFC7274 in this terminology = draft:

 

OLD
  Values 0-15 of the "Extended = Special-Purpose MPLS Label Values"
  registry are set aside = as reserved.  Furthermore, values 0-6 and 8-15
  MUST NOT = appear in the data plane following an XL; an LSR processing
  a = packet with an XL at the top of the label stack followed by a = label
  with value 0-6 or 8-15 MUST drop the = packet.

  Label 7 (when received) retains its meaning as = Entropy Label
  Indicator (ELI) whether a regular = special-purpose label or an ESPL;
  this is because of backwards = compatibility with existing implemented
  and deployed code and = hardware that looks for the ELI without
  verifying if the = previous label is XL or not.  However, when an LSR
  = inserts an entropy label, it MUST insert the ELI as a regular
  = special-purpose label, not as an ESPL.
NEW
  Values 0-15 of = the "Extended Special-Purpose MPLS Label Values"
  = registry are set aside as reserved.  Furthermore, an = implementation
  MUST NOT place a label with value 0-15 in the = label stack immediately following
  an XL; an LSR = processing a packet with an XL at the top of the label
  = stack immediately followed by a label with value 0-15 MUST = drop the packet.

  When inspecting a label stack to find an = Entropy Label Indicator
  (ELI - label 7) a pre-existing = implementation may fail to inspect the
  previous = label, and so not notice that  it is an XL. =  Such systems can
  continue to process the entropy = information and forward the packet when the previous
  = label is an XP without causing = harm. However, the 
  packet will be dropped when = the XL reaches the top of the stack at another = LSR.
END

 

This text clearly demonstrates that legacy LSRs are = not expected to police the  <15><7><xxx> = construct and that nothing bad will happen of they do = not.

 

Longer term, I think we might be better served by = generating an explicit draft that defines the XL behaviour rather than = mixing it in with text on deallocation policy and the naming of parts of = the registry.

 

Best regards

 

Stewart

 

 

------=_NextPart_000_04E5_01D67D2A.21EDA850-- From nobody Fri Aug 28 04:07:37 2020 Return-Path: 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 E95823A0962; Fri, 28 Aug 2020 04:07:35 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.097 X-Spam-Level: X-Spam-Status: No, score=-2.097 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, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.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 YS49r5U1et1w; Fri, 28 Aug 2020 04:07:34 -0700 (PDT) Received: from mail-wr1-x42a.google.com (mail-wr1-x42a.google.com [IPv6:2a00:1450:4864:20::42a]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id A7C0E3A0965; Fri, 28 Aug 2020 04:07:34 -0700 (PDT) Received: by mail-wr1-x42a.google.com with SMTP id f7so927151wrw.1; Fri, 28 Aug 2020 04:07:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:message-id:mime-version:subject:date:in-reply-to:cc:to :references; bh=W1U+X3BJt8ZSMDE4+arfXhncWrHqEP75g7DGso0H8gU=; b=J6v3O6j36wukv8u7xTLYYzQ5atcZCfmmovq+07voFBQ92s1D0qhoge7VYkywQICQ5q 45wE4C8XtXSw1T1BYW68dlhDFYoWOtYPlFsB81oZ0TcwGCmZVPcYO5oMh0GnqgdJEwoQ B61RxLn3/A3nxxlcKj2bPztBzGLcdNx7JvYMa2y23S3dwLKs+B8YRtWjuH4xQIMH2pWu I8eCy4nmmdvCwVeQDjiD2JkH59Ea5LtzVenpMnI0gNOMT5NAHY0974RS4I/9bYwCOp8H i4NinN/k2wJjbDU+AtOE7pQ926vGsoUz8BWdDSwvPkrYeJJgX89QkVueQUeHap7CG77g F14g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:message-id:mime-version:subject:date :in-reply-to:cc:to:references; bh=W1U+X3BJt8ZSMDE4+arfXhncWrHqEP75g7DGso0H8gU=; b=XkTYIuV5bo76QyspalGy09kju1sNkVz99KTiH8ydQX6LlqNy9fkqeq8eAO6GQ1MT3r 7CnKPubCKNoyuD05UyHnIiGmDj5a53gcFIEtUN8O3rfgEVmPPmQYnC36tOyQS3PBiaAz 5nBeRF2kSO/xqVidnbni0YC4sWEbWxmXd3oR0WQdEbuy77pZ3Lu7/4kPG6MH/t5qA2LU 8CYqkGAEcCNRW2wYZ14VLqoYG7ITVfi720gwZb9kZNTOblV3uQBK1t6NlA7j1Ccvw1DN ysl8bhFVrxRPKVKwFUZsEEkYmqGRMxADLd0miu6McjRb8v4iF44/2/SpBamiro+qeJBq OV0A== X-Gm-Message-State: AOAM5339UixY1erIUMNO/9QKv8z/p/5omRVBK9PjCFmKLrd+7SW5mrbW RiEMdvvdEqifSoqrgRWgufk= X-Google-Smtp-Source: ABdhPJzxeTuoWBx1icKarckgtL2F/P7KBmlYgPs2iG4b4o5JPsKbherwlQaVMHRHkO11ikFDMl7yyQ== X-Received: by 2002:adf:f50a:: with SMTP id q10mr984905wro.319.1598612852974; Fri, 28 Aug 2020 04:07:32 -0700 (PDT) Received: from appleton.fritz.box ([62.3.64.16]) by smtp.gmail.com with ESMTPSA id b131sm1779804wmc.8.2020.08.28.04.07.31 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 28 Aug 2020 04:07:32 -0700 (PDT) From: Stewart Bryant Message-Id: Content-Type: multipart/alternative; boundary="Apple-Mail=_FB8A08C1-9A40-41C5-A36A-AA4742B54B72" Mime-Version: 1.0 (Mac OS X Mail 13.4 \(3608.120.23.2.1\)) Date: Fri, 28 Aug 2020 12:07:31 +0100 In-Reply-To: <04e401d67d21$c0265a20$40730e60$@olddog.co.uk> Cc: Stewart Bryant , tom petch , Last Call , draft-ietf-mpls-spl-terminology@ietf.org, mpls , mpls-chairs , "BRUNGARD, DEBORAH A" To: Adrian Farrel References: <159725809676.26545.11479682416116858436@ietfa.amsl.com> <5F3D523E.2050805@btconnect.com> <08eb01d6798e$8cde63b0$a69b2b10$@olddog.co.uk> <6E3FD12F-322C-4D17-80E9-D876084D4D56@gmail.com> <04e401d67d21$c0265a20$40730e60$@olddog.co.uk> X-Mailer: Apple Mail (2.3608.120.23.2.1) Archived-At: Subject: Re: [mpls] [Last-Call] Last Call: (Special Purpose Label terminology) to Informational RFC X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Aug 2020 11:07:36 -0000 --Apple-Mail=_FB8A08C1-9A40-41C5-A36A-AA4742B54B72 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii > On 28 Aug 2020, at 10:58, Adrian Farrel wrote: >=20 > There is a downside: the document clearly needs to be returned to the = working group to make this fix, tidy up the rest of the document, and = re-establish WG consensus. >=20 I think that is a price worth paying to clear this up. There is another alternative, but one which will take a while longer and = that is to write a standalone document on XL and not muddle it up in = label administrative procedure and naming semantics. Indeed, given that we have all the text, it would not be difficult to = craft three very short and to the point drafts that each did a single = job. If you need a ghost editor let me know. Stewart --Apple-Mail=_FB8A08C1-9A40-41C5-A36A-AA4742B54B72 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=us-ascii

On 28 Aug 2020, at 10:58, Adrian Farrel <adrian@olddog.co.uk>= wrote:

There is a downside: the document = clearly needs to be returned to the working group to make this fix, tidy = up the rest of the document, and re-establish WG consensus.



I think that is a price worth paying to clear this = up.

There is = another alternative, but one which will take a while longer and that is = to write a standalone document on XL and not muddle it up in label = administrative procedure and naming semantics.

Indeed, given that we have all the = text, it would not be difficult to craft three very short and to the = point drafts that each did a single job.

If you need a ghost editor let me = know.

Stewart



= --Apple-Mail=_FB8A08C1-9A40-41C5-A36A-AA4742B54B72-- From nobody Fri Aug 28 05:38:17 2020 Return-Path: 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 530113A0B5B; Fri, 28 Aug 2020 05:38:15 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.898 X-Spam-Level: X-Spam-Status: No, score=-1.898 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_NONE=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 F3ceTmjrBcCf; Fri, 28 Aug 2020 05:38:13 -0700 (PDT) Received: from mta7.iomartmail.com (mta7.iomartmail.com [62.128.193.157]) (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 7D7663A0B5A; Fri, 28 Aug 2020 05:38:13 -0700 (PDT) Received: from vs2.iomartmail.com (vs2.iomartmail.com [10.12.10.123]) by mta7.iomartmail.com (8.14.4/8.14.4) with ESMTP id 07SCcBYF011784; Fri, 28 Aug 2020 13:38:11 +0100 Received: from vs2.iomartmail.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id F329C22050; Fri, 28 Aug 2020 13:38:10 +0100 (BST) Received: from asmtp2.iomartmail.com (unknown [10.12.10.249]) by vs2.iomartmail.com (Postfix) with ESMTPS id E71DD22054; Fri, 28 Aug 2020 13:38:10 +0100 (BST) Received: from LAPTOPK7AS653V ([84.51.134.114]) (authenticated bits=0) by asmtp2.iomartmail.com (8.14.4/8.14.4) with ESMTP id 07SCc3Z5008037 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Fri, 28 Aug 2020 13:38:08 +0100 Reply-To: From: "Adrian Farrel" To: "'mpls'" Cc: Date: Fri, 28 Aug 2020 13:38:01 +0100 Organization: Old Dog Consulting Message-ID: <053201d67d38$169df6e0$43d9e4a0$@olddog.co.uk> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Outlook 16.0 Content-Language: en-gb Thread-Index: AdZ9Nv7EZ8SX/B8OSgey66oyYfRq5g== X-Originating-IP: 84.51.134.114 X-Thinkmail-Auth: adrian@olddog.co.uk X-TM-AS-GCONF: 00 X-TM-AS-Product-Ver: IMSVA-9.0.0.1623-8.2.0.1013-25630.007 X-TM-AS-Result: No--10.523-10.0-31-10 X-imss-scan-details: No--10.523-10.0-31-10 X-TMASE-Version: IMSVA-9.0.0.1623-8.2.1013-25630.007 X-TMASE-Result: 10--10.523500-10.000000 X-TMASE-MatchedRID: kJcNBj6RUoPxIbpQ8BhdbDjNGpWCIvfTlFGUu7DBzhig9i3Io5f/ACts tia4ll1jS9gQn6wQyVmmclrdMlGEB3PeSFPI/lpywexfY8VF+PK6s6UL48vRAPkuQv9PIVnNrm2 tCXxyLsw42WIe5HmydzQNUc4eLHNoBr0HrKTupGiqDSBu0tUhrynsJ9MqQSOlabJxhiIFjJm3gs RLvs5LrOz5pBHzWQQWk/cbFqWNZHxz4sVWKF9cY+IfK/Jd5eHmDvc/j9oMIgXVH+m1hZHwLi8kV cZ/AkM34vM1YF6AJbZcLc3sLtjOt9CpCFLDTHZUavP8b9lJtWr6C0ePs7A07fUrOTjR0Rj12ZRs gL6oTX+1vkm1oih2MfFLcBnO3u436DggtuypHvE= X-TMASE-SNAP-Result: 1.821001.0001-0-1-12:0,22:0,33:0,34:0-0 Archived-At: Subject: [mpls] Designated shepherd for draft-ietf-mpls-lsp-ping-registries-update X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Aug 2020 12:38:15 -0000 Hi, Because two of the WG chairs and the WG secretary are authors on this draft, I've agreed with the chairs that I will do a little more than the usual shepherding role. As Loa recently announced, my full set of actions will be: - decide that the doc is ready for WGLC - run the IPR poll - run the WGLC and call consensus - facilitate the process to make sure that the authors updates according to comments - write the Shepherds Write-Up - trigger a WG chair to push the button to request publication when ready - be generally helpful through IETF LC and the AD/RTG-DIR review Any concerns with how I carry out these responsibilities should (after first trying to set me straight) be directed to the chairs and, in the event that you think there may be some preferential treatment of the chairs' views) to the AD. I'll be moving along with this pretty soon. Best, Adrian From nobody Fri Aug 28 05:43:38 2020 Return-Path: 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 232CA3A0B52; Fri, 28 Aug 2020 05:43:37 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.896 X-Spam-Level: X-Spam-Status: No, score=-1.896 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_NONE=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 eK0R5pX-W9IM; Fri, 28 Aug 2020 05:43:35 -0700 (PDT) Received: from mta6.iomartmail.com (mta6.iomartmail.com [62.128.193.156]) (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 4B09A3A043E; Fri, 28 Aug 2020 05:43:34 -0700 (PDT) Received: from vs2.iomartmail.com (vs2.iomartmail.com [10.12.10.123]) by mta6.iomartmail.com (8.14.4/8.14.4) with ESMTP id 07SChXdC016105; Fri, 28 Aug 2020 13:43:33 +0100 Received: from vs2.iomartmail.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id EDC042204A; Fri, 28 Aug 2020 13:43:32 +0100 (BST) Received: from asmtp3.iomartmail.com (unknown [10.12.10.224]) by vs2.iomartmail.com (Postfix) with ESMTPS id D899322048; Fri, 28 Aug 2020 13:43:32 +0100 (BST) Received: from LAPTOPK7AS653V ([84.51.134.114]) (authenticated bits=0) by asmtp3.iomartmail.com (8.14.4/8.14.4) with ESMTP id 07SChVPp006342 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Fri, 28 Aug 2020 13:43:32 +0100 Reply-To: From: "Adrian Farrel" To: Cc: "'mpls'" Date: Fri, 28 Aug 2020 13:43:32 +0100 Organization: Old Dog Consulting Message-ID: <053301d67d38$d6d2ad20$84780760$@olddog.co.uk> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Outlook 16.0 Content-Language: en-gb Thread-Index: AdZ9OCyLGtyws8kvSRapSb80E0W7rg== X-Originating-IP: 84.51.134.114 X-Thinkmail-Auth: adrian@olddog.co.uk X-TM-AS-GCONF: 00 X-TM-AS-Product-Ver: IMSVA-9.0.0.1623-8.2.0.1013-25630.007 X-TM-AS-Result: No--6.524-10.0-31-10 X-imss-scan-details: No--6.524-10.0-31-10 X-TMASE-Version: IMSVA-9.0.0.1623-8.2.1013-25630.007 X-TMASE-Result: 10--6.523600-10.000000 X-TMASE-MatchedRID: y1K/eV/lgEDxIbpQ8BhdbE7yqWc5cVLPpQH4ogtVQP0L9Tj77wy87K0I ALyST8Y2ahzhGWY177k2mtxMhqolw9zW6Pnt4BkkNrV1Ir7i+KV+S5m2/8VLmhLf1vz7ecPHgJu RkTEZFzdrQa3Cwqy378JXOW472UCpgl5Rdh8uTQFMA4dW3qbK5WQBrQiRNt2I4fAPhRJNSFj2oq SoKrvYK+RdnEX1rI/VkZOl7WKIImq0P2qkGU0XylOm2gN+noms2bNx1HEv7HAqtq5d3cxkNXGC6 Nd+AtMdJHks0zP8Ajeu19SbXAGgvWA/5V2CiYvaNXrMXzy/3B8= X-TMASE-SNAP-Result: 1.821001.0001-0-1-12:0,22:0,33:0,34:0-0 Archived-At: Subject: [mpls] IPR Poll on draft-ietf-mpls-lsp-ping-registries-update X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Aug 2020 12:43:37 -0000 Hi authors of draft-ietf-mpls-lsp-ping-registries-update, Preparatory to advancing this document, could you please respond to this email (on list) to confirm whether you are aware of IPR that applies to this document. Common replies include: * No, I am not aware of any IPR that applies to this document * Yes, I am aware of IPR that applies to this document, and it has already been disclosed and is recorded in the datatracker. * Yes, I am aware of IPR that applies to this document, but it has not yet been disclosed. I will ensure that it is disclosed and recorded in the datatracker in a timely way. * I am aware of IPR held by a third party that might be applicable to this document, but has not been disclosed. I will make a third-party IPR disclosure in a timely way. Other members of the WG who are aware of IPR related to this work are encouraged to make the necessary disclosures. Thanks, Adrian From nobody Fri Aug 28 08:02:03 2020 Return-Path: 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 801433A0C52; Fri, 28 Aug 2020 08:02:01 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.845 X-Spam-Level: X-Spam-Status: No, score=-2.845 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, NICE_REPLY_A=-0.948, SPF_HELO_NONE=0.001, SPF_NONE=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 p713D-RGH6jT; Fri, 28 Aug 2020 08:01:59 -0700 (PDT) Received: from pipi.pi.nu (pipi.pi.nu [83.168.239.141]) (using TLSv1.1 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 5C3703A0C5E; Fri, 28 Aug 2020 08:01:58 -0700 (PDT) Received: from [192.168.1.19] (unknown [122.2.96.196]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: loa@pi.nu) by pipi.pi.nu (Postfix) with ESMTPSA id 9E7EF326C7B; Fri, 28 Aug 2020 17:01:55 +0200 (CEST) To: adrian@olddog.co.uk, draft-ietf-mpls-lsp-ping-registries-update@ietf.org Cc: 'mpls' References: <053301d67d38$d6d2ad20$84780760$@olddog.co.uk> From: Loa Andersson Message-ID: <47f4e13c-bd78-773d-e073-5164eac3b779@pi.nu> Date: Fri, 28 Aug 2020 23:01:52 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: <053301d67d38$d6d2ad20$84780760$@olddog.co.uk> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Archived-At: Subject: Re: [mpls] IPR Poll on draft-ietf-mpls-lsp-ping-registries-update X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Aug 2020 15:02:02 -0000 Adrian, No, I am not aware of any IPR that applies to this document /Loa On 28/08/2020 20:43, Adrian Farrel wrote: > Hi authors of draft-ietf-mpls-lsp-ping-registries-update, > > Preparatory to advancing this document, could you please respond to this > email (on list) to confirm whether you are aware of IPR that applies to this > document. > > Common replies include: > > * No, I am not aware of any IPR that applies to this document > > * Yes, I am aware of IPR that applies to this document, and it has already > been disclosed and is recorded in the datatracker. > > * Yes, I am aware of IPR that applies to this document, but it has not yet > been disclosed. I will ensure that it is disclosed and recorded in the > datatracker in a timely way. > > * I am aware of IPR held by a third party that might be applicable to this > document, but has not been disclosed. I will make a third-party IPR > disclosure in a timely way. > > Other members of the WG who are aware of IPR related to this work are > encouraged to make the necessary disclosures. > > Thanks, > Adrian > > _______________________________________________ > mpls mailing list > mpls@ietf.org > https://www.ietf.org/mailman/listinfo/mpls > -- Loa Andersson email: loa@pi.nu Senior MPLS Expert loa.pi.nu@gmail.com Bronze Dragon Consulting phone: +46 739 81 21 64 From nobody Fri Aug 28 08:06:47 2020 Return-Path: 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 9DC443A0C5E; Fri, 28 Aug 2020 08:06:45 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -9.598 X-Spam-Level: X-Spam-Status: No, score=-9.598 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, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=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); 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Fri, 28 Aug 2020 22:26:36 +0100 (BST) Received: from asmtp1.iomartmail.com (unknown [10.12.10.248]) by vs1.iomartmail.com (Postfix) with ESMTPS id 3AA642203B; Fri, 28 Aug 2020 22:26:36 +0100 (BST) Received: from LAPTOPK7AS653V ([84.51.134.114]) (authenticated bits=0) by asmtp1.iomartmail.com (8.14.4/8.14.4) with ESMTP id 07SLQZJM016222 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Fri, 28 Aug 2020 22:26:35 +0100 Reply-To: From: "Adrian Farrel" To: Cc: "'mpls'" Date: Fri, 28 Aug 2020 22:26:35 +0100 Organization: Old Dog Consulting Message-ID: <05a901d67d81$e8f7b790$bae726b0$@olddog.co.uk> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Outlook 16.0 Content-Language: en-gb Thread-Index: AdZ9gNLYwumeSWWARfa8Paf6UMMxag== X-Originating-IP: 84.51.134.114 X-Thinkmail-Auth: adrian@olddog.co.uk X-TM-AS-GCONF: 00 X-TM-AS-Product-Ver: IMSVA-9.0.0.1623-8.2.0.1013-25632.003 X-TM-AS-Result: No--8.831-10.0-31-10 X-imss-scan-details: No--8.831-10.0-31-10 X-TMASE-Version: IMSVA-9.0.0.1623-8.2.1013-25632.003 X-TMASE-Result: 10--8.830900-10.000000 X-TMASE-MatchedRID: 7JAi/59+m5r5uyvfNjfPT3FPUrVDm6jtWaU44RL3kdHkMnUVL5d0E9yb V/lwmeN/5W81hgDijCfyHFudwQOMj/oIr8BXEwujhL9NX2TqmkAiJN3aXuV/oQd2elVmK++c224 ueXqtKLvgzrFYJB6O59t5CqFkSdR7XYxwRk37KZtor4yxPAz7WZKLNrbpy/A0g8vHe9ji82Ll7q 4CWsGTwj6r7IlQjIjx/jApFRz4XCLquHgX5f+xPJzEHTUOuMX3uqgVqRoQsiAHT/9zVlNcjDcw6 IOkA0LVVztt14qydouxP2w0U2HJ1hhijYxR5g1gZdorcofH/GmC7C2rJeUToRv2iroWthDcyqat 6b4pc93J318nlj+jA99P02GYltPhSQJi9fZz0aRStWLDoBpPUct3zHe6Qppe1l38M6aWfEjZmoQ cDjmvw/5ES2A1QCC0qMPDRqB1hlTxlOJuQNHlfXTnOygHVQpOSuH+GfgmQGeuiyJNZGE/iXd7bc i/LVuNGBcB4Y5pxhbZJDu+P9Krgn2Brs7h/mq1qg0gbtLVIa/3+mUqDWUKyNPKub0EHdub2fXQm evz4QH6GmyY5Pynfu4QWTHMalgcmXyBFJiIQ45LIfps09VJ28qFE6gRdRObAI4sP5ySAoe7YeCa hXL6SgMDPvXmsDMgHjST5wEnzKr1lGRVqRJJbcK1Ib9JAALxBePf1P4ER8DEXelUnE6spY7PDMg HmyGLOKOnNDOGg495r+EARzopot/nncomVS+Iboe6sMfg+k8dLjiwtocA8t8QWe2m7zgLXv0Uvr 1nqBeF35Y+5Kr9cRtZC/BOv8JYt2Ln7lGU7t2eAiCmPx4NwLTrdaH1ZWqCii7lXaIcF/Ww7M6dy uYKg46HM5rqDwqtE5o4dNIx1B09ZtxZXBSdsOkHJA3dwFSiXBhy/a9gDel+hpALBbqyt0MMprcb iest X-TMASE-SNAP-Result: 1.821001.0001-0-1-12:0,22:0,33:0,34:0-0 Archived-At: Subject: [mpls] Shepherd review of draft-ietf-mpls-lsp-ping-registries-update-03 X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Aug 2020 21:26:41 -0000 Hi, I am reviewing this document as Document Shepherd. My comments (below) are mainly nits, but there are rather a lot of them. In order that the WG can get a good view of the document in last call, I think you should post an update (it should be fairly mechanical) and then I can start the last call. Thanks, Adrian === Bullet points You have a variety of styles. I think you can harmonise: - All bullet points to begin with a capital letter - If any bullet point in a list ends with a full stop, then all should --- Correct capitalisation for section headings. I see issues with 3, 3.1, 3.1.1, 3.2.1, 6.2 --- Section 1 s/RFC 8029 use the words/RFC 8029 uses these words/ --- Section 1 OLD This document drops the words "mandatory and "optional" and the text is changed to focus on what should be done. NEW This document updates RFC 8029 to drop the words "mandatory" and "optional", and the text is changed to focus on what should be done. END --- Section 2 OLD In the Return Codes [IANA-RC] [IANA-RC] registry NEW In the Return Codes registry [IANA-RC] END However, for clarity since this sub-bullet does not reflect a change to the registry, maybe... NEW Note that in the Return Codes registry [IANA-RC] END --- Section 2 s/will be found/are found/ --- 3.1 Title s/General principles the/General Principles for the/ --- 3.1 The following principles are valid for all the LSP Ping TLV and sub- TLV IANA registries Missing punctuation However, I think this is not quite right. While the registries track this information, they are not responsible for the protocol rules. So how about: The following principles apply to the processing of any TLV from any of the LSP Ping TLV and sub-TLV IANA registries. --- 3.1 o all TLVs and sub-TLVs in the range 32768-65535 may be silently dropped if they are not recognized When you have a "may" you need to give the alternative. In fact, you do this in the paragraph that follows, so how about o all TLVs and sub-TLVs in the range 32768-65535 may either be silently dropped or stepped over if they are not recognized --- 3.1 s/The other block in the range/The other block has the range/ s/dropped, possibly stepped over, if/dropped or stepped over if/ s/are found in [RFC8126]/are found in [RFC8126]./ --- 3.1 Section 2 has a useful final paragraph that points at Section 6.1. I think that 3.1 could benefit from a pointer in a similar way. --- 3.1 and 3.1.1 You have a slight tonal disconnect... 3.1 has o all TLVs and sub-TLVs in the range 32768-65535 may be silently dropped if they are not recognized and The other block in the range from 32768 to 65535 for TLVs and sub-TLVs that may be silently dropped, possibly stepped over, if not recognized. While 3.1.1 has o If the unrecognized TLV or sub-TLV is from the Experimental Use range (64508-64511) or from the Private Use range (64512-65535) the TLVs SHOULD be silently ignored and possibly be stepped over. Is the use of normative language appropriate/necessary in 3.1.1? I suspect not. That would make it easy to bring everything into line by changing 3.1.1 to read... o If the unrecognized TLV or sub-TLV is from the Experimental Use range (64508-64511) or from the Private Use range (64512-65535) the TLVs will be silently ignored or possibly stepped over. --- 3.1.1 s/IETF does not/The IETF does not/ --- 3.2 s/outline/describe/ --- 3.2.1 The first set are for the range that requires a response if the TLV or sub-TLV is not recognised; the sedond set are for the range there the TLV or sub-TLV that MAY be silently dropped if not recognized. I don't think this is the right place for normative language. Lower case "may" would be fine here. s/sedond/second/ --- 3.2.1 s/the list that capture/the list that captures/ s/Use are/Use, are/ --- 4. s/are using/use/ s/below are intended to align/below align/ --- 4.1 I think? OLD Mandatory and optional is used to indicate whether are response ir needed or if at TLV or sub-TLV is not understoond page 14 and 15 in Section 3 of RFC 8029. NEW Mandatory and optional are used to indicate whether a response is needed if a TLV or sub-TLV is not understood on pages 14 and 15 in Section 3 of RFC 8029. END --- 4.1 In Section 3.8 of RFC 8029 "mandatory" is used in the same way. The first two paragraphs of this section are now updated to read as follows: The following TLV is a TLV that MAY be included in an echo reply to inform the sender of an echo request that includes TLVs or sub- TLVs Types greater than or equal to 32768 (i.e., with the high- order bit equal to 1) are either not supported by the implementation or parsed and found to be in error. The old text was... The following TLV is a TLV that MAY be included in an echo reply to inform the sender of an echo request of mandatory TLVs either not supported by an implementation or parsed and found to be in error. I thought that "mandatory" was consistent with the top bit being clear. The fact that this TLV is optional doesn't change the fact that the TLV is "mandatory". So I think your text should read... The following TLV is a TLV that MAY be included in an echo reply to inform the sender of an echo request that includes TLVs or sub- TLVs Types less than 32768 (i.e., with the high-order bit equal to 0) are either not supported by the implementation or parsed and found to be in error. --- 4.2 The title of this section is about updates to RFC 8611. The text is worded in terms of updates to the registry not the RFC. I think you should change the text consistent with the title (which would also be consistent with the rest of Section 4). Should be easy enough because it's just Section 13.4.1 of RFC 8611 --- 5. s/related to the/related to, the/ --- 6. IANA is requested to update the LSP Ping name space as described in this document. Not sure what the "LSP Ping name space" will mean to IANA. Meanwhile in Section 6.1 you have... This section details the updated registration procedures and allocations for Message Type, Reply Mode and Return Codes registries. Are you sure that IANA will know which registries these are? If I go to https://www.iana.org/protocols and search for "Message Type" I find 76 matches. So maybe, if Section 6 can set the context in terms of "the family of Multiprotocol Label Switching (MPLS) Label Switched Paths (LSPs) Ping Parameters" then 6.1 can talk about those three registries but using quotes about their names (as "Message Type", "Reply Mode", and "Return Codes" registries). Alternatively (or as well) you can use the references that you have at the top of Section 8.1 to add clarity. --- 6.1 I feel that this section would be clearer for IANA and historians if you could break it into three subsections, one for each registry. I know this would require a little duplication of text, but it would be a better read. It would also resolve the complication/contradiction with 0 in the Return Codes registry. --- 6.1 | 1-247 | No changes to the existing | | | | assignments | | I believe you could make it clearer to IANA that this is an action you want them to take, not text you want them to put in the registry. --- 6.2 s/([IANA-Sub-9] is/([IANA-Sub-9]) is/ --- 6.2 Can you help IANA by being more explicit about the changes you want them to make? I think there is the main "TLVs" registry to be updated and then there are a number of sub-TLV registries to be updated as well. I see: - Sub-TLVs for TLV Types 1, 16, and 21 - Sub-TLVs for TLV Type 6 - Sub-TLVs for TLV Type 11 - Sub-TLVs for TLV Type 20 - Sub-TLVs for TLV Type 23 - Sub-TLVs for TLV Type 27 And explicitly not: - Sub-TLVs for TLV Type 9 --- Are you sure that this document doesn't also update the RFCs that created some of the sub-TLV registries? For example, RFC 7759 creates the "Sub-TLVs for TLV Type 27" registry and includes text that says: Registration procedures for Sub-TLVs from ranges 0-16383 and 32768-49161 are by Standards Action. Ranges 16384-31743 and 49162-64511 are through Specification Required (Experimental RFC Needed). --- 6.3 s/([IANA-Sub-9] is not changed./([IANA-Sub-9] is not changed). --- 6.3 +-------------+-------------------------------+---------------------+ | Type | TLV name | Reference | +-------------+-------------------------------+---------------------+ | 0 | Reserved | This document | | 1-31739 | [any] | No changes to the | | | | current registry | | 37140-37143 | Reserved for Experimental Use | This document | | 31744-32767 | FCFS | This document | | 32768-64507 | [any] | No changes to the | | | | current registry. | | 64508-64511 | Reserved for Experimental Use | This document | | 64512-65535 | FSFC | This document | +-------------+-------------------------------+---------------------+ Similar things: - Please make it clear what you want IANA to do. In particular that you don't want IANA to reproduce the "[any]" text in the registries - I think it is worth listing the registries just like in 6.2 --- 7. s/Eatlake/Eastlake/ From nobody Fri Aug 28 18:08:00 2020 Return-Path: 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 9B0C53A0ECC; Fri, 28 Aug 2020 18:07:58 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.901 X-Spam-Level: X-Spam-Status: No, score=-1.901 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_MSPIKE_H2=-0.001, 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 FDkemdqEAZ4I; Fri, 28 Aug 2020 18:07:57 -0700 (PDT) Received: from huawei.com (lhrrgout.huawei.com [185.176.76.210]) (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 741A93A0ECB; Fri, 28 Aug 2020 18:07:57 -0700 (PDT) Received: from lhreml714-chm.china.huawei.com (unknown [172.18.7.106]) by Forcepoint Email with ESMTP id 153B75922582F664DDF1; Sat, 29 Aug 2020 02:07:55 +0100 (IST) Received: from lhreml714-chm.china.huawei.com (10.201.108.65) by lhreml714-chm.china.huawei.com (10.201.108.65) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1913.5; Sat, 29 Aug 2020 02:07:55 +0100 Received: from DGGEML421-HUB.china.huawei.com (10.1.199.38) by lhreml714-chm.china.huawei.com (10.201.108.65) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.1.1913.5 via Frontend Transport; Sat, 29 Aug 2020 02:07:54 +0100 Received: from DGGEML530-MBS.china.huawei.com ([169.254.8.170]) by dggeml421-hub.china.huawei.com ([10.1.199.38]) with mapi id 14.03.0487.000; Sat, 29 Aug 2020 09:07:52 +0800 From: Mach Chen To: "adrian@olddog.co.uk" , "draft-ietf-mpls-lsp-ping-registries-update@ietf.org" CC: 'mpls' Thread-Topic: IPR Poll on draft-ietf-mpls-lsp-ping-registries-update Thread-Index: AdZ9OCyLGtyws8kvSRapSb80E0W7rgAaHrog Date: Sat, 29 Aug 2020 01:07:51 +0000 Message-ID: References: <053301d67d38$d6d2ad20$84780760$@olddog.co.uk> In-Reply-To: <053301d67d38$d6d2ad20$84780760$@olddog.co.uk> Accept-Language: en-US, zh-CN Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.108.243.140] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-CFilter-Loop: Reflected Archived-At: Subject: Re: [mpls] IPR Poll on draft-ietf-mpls-lsp-ping-registries-update X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 29 Aug 2020 01:07:59 -0000 Hi Adrian, I am not aware of any IPR that applies to this draft. Best regards, Mach > -----Original Message----- > From: Adrian Farrel [mailto:adrian@olddog.co.uk] > Sent: Friday, August 28, 2020 8:44 PM > To: draft-ietf-mpls-lsp-ping-registries-update@ietf.org > Cc: 'mpls' > Subject: IPR Poll on draft-ietf-mpls-lsp-ping-registries-update >=20 > Hi authors of draft-ietf-mpls-lsp-ping-registries-update, >=20 > Preparatory to advancing this document, could you please respond to this = email > (on list) to confirm whether you are aware of IPR that applies to this do= cument. >=20 > Common replies include: >=20 > * No, I am not aware of any IPR that applies to this document >=20 > * Yes, I am aware of IPR that applies to this document, and it has alread= y been > disclosed and is recorded in the datatracker. >=20 > * Yes, I am aware of IPR that applies to this document, but it has not ye= t been > disclosed. I will ensure that it is disclosed and recorded in the datatra= cker in a > timely way. >=20 > * I am aware of IPR held by a third party that might be applicable to thi= s > document, but has not been disclosed. I will make a third-party IPR discl= osure in a > timely way. >=20 > Other members of the WG who are aware of IPR related to this work are > encouraged to make the necessary disclosures. >=20 > Thanks, > Adrian From nobody Fri Aug 28 19:48:22 2020 Return-Path: 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 DE4BF3A0F49; Fri, 28 Aug 2020 19:48:20 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.098 X-Spam-Level: X-Spam-Status: No, score=-2.098 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, FREEMAIL_FROM=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.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 66ql_b9A5R6c; Fri, 28 Aug 2020 19:48:19 -0700 (PDT) Received: from mail-pj1-x102d.google.com (mail-pj1-x102d.google.com [IPv6:2607:f8b0:4864:20::102d]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 18DB83A0F48; Fri, 28 Aug 2020 19:48:19 -0700 (PDT) Received: by mail-pj1-x102d.google.com with SMTP id mw10so400907pjb.2; Fri, 28 Aug 2020 19:48:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=content-transfer-encoding:mime-version:subject:from:in-reply-to :date:cc:message-id:references:to; bh=7JbWkWvezurXhCxZa+h5LPSKyk0qeOVjnEvWpgbbneA=; b=roRtmfpDfWVLTKdFMStouyka/dVRV/+3aXOchRBZDKbnRiDJjkIqYBklrOJ1FJpoaN mLAW+FALJaSGDMyKmDmtDmh6CqlO8OzB1I6NbB6mgDLEKqWaBPn31E6G0N14k9dvNV03 RBrWeZ4IfPbCgibo6/3WROLcg/ot06g1LUJ9MSXPhwvmM+71ZnsSyCoDbyuBknN7oyBK /+YiujtYVJz2Ywn4rHjVaDY3A99Qrj7mZo96cHqw7DrD6LrHj1KABFqNdxcvuOpE+jxy noZRDcllwsT60QjBIIvfYukYXD8aC1NMhzP2Oyclxh1eIMITt75//9/CcRgPdd3bO2Ga RRFg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:content-transfer-encoding:mime-version:subject :from:in-reply-to:date:cc:message-id:references:to; bh=7JbWkWvezurXhCxZa+h5LPSKyk0qeOVjnEvWpgbbneA=; b=FMLyxrm5vL1s8RqOA34n5XYVF+cHSAgCGpiuR+ctXaX1kPumGvMmLIUWNSYxL6RZr1 BDpulCncLSn4EiT55pxVvKOulAaD71KgmGHFqYJN9t1PzcmSiy7JJNOfTnRNHbZP7t3+ PA6YNFSN78T6YB2PSWLqcTRpmQ9i6LGyp80E7rm4JItJydKXVz737cumn61PzmfXy12+ TlI/1mV0OitO7T6TjtLHu/kiU174DH9DTWwxsW0XV5/jfZxnYe/KP7Glh/hsjh36fKK8 Lnz9gGqkxrL//ly1h9ISTdK/mcF1LONf+Av/1wbfslnP3wmqaeeeDpCJ3XlZLdCDNQdO 8DHA== X-Gm-Message-State: AOAM532vu09w88W0H1B8OnZ5ZEw1af4JfkpJWuVh/ZsN846fEbEOZSIX AzZGf3icfBKpAOmZnmuRcBc= X-Google-Smtp-Source: ABdhPJzPQ1IQp9bMl0MLA1K0sxjfxF/OceCsj6fEkdjn41mG7oZbyC4aFzso/SyxOyfjVfAtJRW5XQ== X-Received: by 2002:a17:90a:b10a:: with SMTP id z10mr1655230pjq.102.1598669298456; Fri, 28 Aug 2020 19:48:18 -0700 (PDT) Received: from [192.168.1.16] ([122.2.96.196]) by smtp.gmail.com with ESMTPSA id h10sm776024pgn.32.2020.08.28.19.48.17 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 28 Aug 2020 19:48:17 -0700 (PDT) Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (1.0) From: Loa Andersson In-Reply-To: <05a901d67d81$e8f7b790$bae726b0$@olddog.co.uk> Date: Sat, 29 Aug 2020 10:48:15 +0800 Cc: draft-ietf-mpls-lsp-ping-registries-update@ietf.org, mpls Message-Id: References: <05a901d67d81$e8f7b790$bae726b0$@olddog.co.uk> To: adrian@olddog.co.uk X-Mailer: iPhone Mail (17G80) Archived-At: Subject: Re: [mpls] Shepherd review of draft-ietf-mpls-lsp-ping-registries-update-03 X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 29 Aug 2020 02:48:21 -0000 Adrian, Tnx, very useful. One small point.=20 Sent from my iPhone > On 29 Aug 2020, at 05:26, Adrian Farrel wrote: >=20 > In your comments on section 6. =20 >=20 > 6. >=20 > IANA is requested to update the LSP Ping name space as described in > this document. >=20 > Not sure what the "LSP Ping name space" will mean to IANA. >=20 > Meanwhile in Section 6.1 you have... >=20 > This section details the updated registration procedures and > allocations for Message Type, Reply Mode and Return Codes registries. >=20 > Are you sure that IANA will know which registries these are? If I go to > https://www.iana.org/protocols and search for "Message Type" I find 76 > matches. >=20 > So maybe, if Section 6 can set the context in terms of "the family of > Multiprotocol Label Switching (MPLS) Label Switched Paths (LSPs) Ping=20 > Parameters" then 6.1 can talk about those three registries but using > quotes about their names (as "Message Type", "Reply Mode", and "Return > Codes" registries). I thought this was done by listing the =E2=80=9Cin scope registries=E2=80=9D= in section 1.=20 I can repeat the information in section 6 if necessary.=20 /Loa >=20 > Alternatively (or as well) you can use the references that you have at=20 > the top of Section 8.1 to add clarity. >=20 > --- >=20 > 6.1 >=20 > I feel that this section would be clearer for IANA and historians if=20 > you could break it into three subsections, one for each registry. I know > this would require a little duplication of text, but it would be a > better read. >=20 > It would also resolve the complication/contradiction with 0 in the > Return Codes registry. >=20 > --- >=20 > 6.1 >=20 > | 1-247 | No changes to the existing | | > | | assignments | | >=20 > I believe you could make it clearer to IANA that this is an action you > want them to take, not text you want them to put in the registry. >=20 > --- >=20 > 6.2 >=20 > s/([IANA-Sub-9] is/([IANA-Sub-9]) is/ >=20 > --- >=20 > 6.2 >=20 > Can you help IANA by being more explicit about the changes you want them > to make? I think there is the main "TLVs" registry to be updated and > then there are a number of sub-TLV registries to be updated as well. I > see: > - Sub-TLVs for TLV Types 1, 16, and 21 > - Sub-TLVs for TLV Type 6 > - Sub-TLVs for TLV Type 11 > - Sub-TLVs for TLV Type 20 > - Sub-TLVs for TLV Type 23 > - Sub-TLVs for TLV Type 27 > And explicitly not: > - Sub-TLVs for TLV Type 9 >=20 > --- >=20 > Are you sure that this document doesn't also update the RFCs that > created some of the sub-TLV registries? For example, RFC 7759 creates > the "Sub-TLVs for TLV Type 27" registry and includes text that says: >=20 > Registration procedures for Sub-TLVs from ranges 0-16383 and > 32768-49161 are by Standards Action. Ranges 16384-31743 and > 49162-64511 are through Specification Required (Experimental RFC > Needed). >=20 > --- >=20 > 6.3=20 >=20 > s/([IANA-Sub-9] is not changed./([IANA-Sub-9] is not changed). >=20 > --- >=20 > 6.3 >=20 > +-------------+-------------------------------+---------------------+ > | Type | TLV name | Reference | > +-------------+-------------------------------+---------------------+ > | 0 | Reserved | This document | > | 1-31739 | [any] | No changes to the | > | | | current registry | > | 37140-37143 | Reserved for Experimental Use | This document | > | 31744-32767 | FCFS | This document | > | 32768-64507 | [any] | No changes to the | > | | | current registry. | > | 64508-64511 | Reserved for Experimental Use | This document | > | 64512-65535 | FSFC | This document | > +-------------+-------------------------------+---------------------+ >=20 > Similar things:=20 > - Please make it clear what you want IANA to do. In particular that you > don't want IANA to reproduce the "[any]" text in the registries > - I think it is worth listing the registries just like in 6.2 >=20 > --- >=20 > 7. >=20 > s/Eatlake/Eastlake/ >=20 > _______________________________________________ > mpls mailing list > mpls@ietf.org > https://www.ietf.org/mailman/listinfo/mpls From nobody Fri Aug 28 23:24:10 2020 Return-Path: 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 399963A1110; Fri, 28 Aug 2020 23:24:07 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.096 X-Spam-Level: X-Spam-Status: No, score=-2.096 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, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, MIME_QP_LONG_LINE=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.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 0vnYwVUTv9pN; Fri, 28 Aug 2020 23:24:05 -0700 (PDT) Received: from mail-pj1-x102c.google.com (mail-pj1-x102c.google.com [IPv6:2607:f8b0:4864:20::102c]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 498073A110F; Fri, 28 Aug 2020 23:24:05 -0700 (PDT) Received: by mail-pj1-x102c.google.com with SMTP id q1so551459pjd.1; Fri, 28 Aug 2020 23:24:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=content-transfer-encoding:mime-version:subject:from:in-reply-to :date:cc:message-id:references:to; bh=TxefEBR2UwiEUSOFgTh87dwpkm+rrFv0yJ6+DL7NBf8=; b=OkhwHepi50l68jekByJeutzMIxKfnFMf28p7uWbJQCNwvu8944v+ygVUuoVdKL8saC oiPaVaq9cpb2KLXquLVizR5/URa8M2LeAZW6KXl/22hBRA1+QTqbEb8St2cqEZ9TE+7f J7jgR7Q7djuxlUxkAZzg+Qo5jjbGRz72A7y2RcnelHPyLGd50phZMyMe4iOWan/fwBxX 9huPRvyx8aisJLZ4BGBlx9zLiTHbwYHF77fny03itw1SKoSo8LGfRrIPlHDWYpzM5UbD OzPkjzL0BZP1Dj3YpYDqEBYDhzacxrcRpYTX31dF+vHWMCjAp7lBkFFaTgftt2/WHGqT NaJw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:content-transfer-encoding:mime-version:subject :from:in-reply-to:date:cc:message-id:references:to; bh=TxefEBR2UwiEUSOFgTh87dwpkm+rrFv0yJ6+DL7NBf8=; b=BbHWmzKv/z9Ph8FW1Hy0aB+lRglwkRwdC0BNRQFwUBDmJgJbV6M9fAWP0cju1Fhtr+ 1h6X/9peyV/3o1lAux89W8aRPTE/KD6lWGL9dDPom08uJwEUDINVMifdhlku/fuiRqqk ujUAVOAIANQm6tEOieXvC7ckiEN6fYc84uCrBTe5YcGm/tcr3z6/fRq55m/SYdNn11qZ hStwRySNbKoOGd5v8EyU8kPG/yTkKM8av4evhFrvuY+4k1IifXEf1Zhh5iQgZA70sCAM XUTP7xO1tGxxaW/JnnQFqs+ZdXVi7S4tyxQByiArItzUBQmD2b8VpZXQGW2hXOkPBF+d g84A== X-Gm-Message-State: AOAM533bjhZ7BKKp/7gzTKao72rGTWgjIsda3IaEOQQ6n5mxqlJFIAFB Mw1IN6qqoI/Ra1ac6qd6sfMQwUn1urI= X-Google-Smtp-Source: ABdhPJxV2co0nl/Xw04RRfV4iIFq1hh/NfPf5H2hM4htPQanGKsPX+53NmCAraybTlV0y2iB4q/qZQ== X-Received: by 2002:a17:90a:5805:: with SMTP id h5mr1945822pji.236.1598682244448; Fri, 28 Aug 2020 23:24:04 -0700 (PDT) Received: from [192.168.8.111] ([110.54.136.28]) by smtp.gmail.com with ESMTPSA id a12sm1309288pfr.217.2020.08.28.23.24.02 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 28 Aug 2020 23:24:03 -0700 (PDT) Content-Type: multipart/alternative; boundary=Apple-Mail-FAC1E52A-C61D-4BE4-AEB4-059648083D23 Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (1.0) From: Loa Andersson In-Reply-To: <6E3FD12F-322C-4D17-80E9-D876084D4D56@gmail.com> Date: Sat, 29 Aug 2020 14:23:59 +0800 Cc: Adrian Farrel , tom petch , Last Call , draft-ietf-mpls-spl-terminology@ietf.org, mpls , mpls-chairs , "BRUNGARD, DEBORAH A" Message-Id: References: <6E3FD12F-322C-4D17-80E9-D876084D4D56@gmail.com> To: Stewart Bryant X-Mailer: iPhone Mail (17G80) Archived-At: Subject: Re: [mpls] [Last-Call] Last Call: (Special Purpose Label terminology) to Informational RFC X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 29 Aug 2020 06:24:07 -0000 --Apple-Mail-FAC1E52A-C61D-4BE4-AEB4-059648083D23 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Stewart, Inline plz Sent from my iPhone > On 28 Aug 2020, at 16:26, Stewart Bryant wrote:= >=20 > =EF=BB=BFFirst a procedurally point: >=20 > "This draft updates RFC7274" >=20 > RFC7274 is standards track, and so believe that this terminology draft als= o needs to be standards track. I=E2=80=99m afraid you are right. Is it only when a Standards Track document= references an Informational document we can make a note in the Last Call wr= ite up? Maybe we should ask the IESG for advice. My concern is that the document is t= ypically Informational. I=E2=80=99d like to avoid this discussion late in t= he process.=20 =20 /Loa >=20 > Second technical matter: >=20 > In discussing this terminology draft there has been some confusion regardi= ng the whether the construct XL/ELI/EL (or <15><7> as I have described i= t elsewhere in the thread) is permitted. > Re-reading RFC7274 there is text that seems to expressly forbids the const= ruct XL/ELI/EL (or <15><7>). >=20 > The text=20 >=20 > "Values 0-15 of the "Extended Special-Purpose MPLS Label Values" > registry are set aside as reserved. " >=20 > Is quite clear that the whole of that range is reserved.=20 >=20 > In the IANA section it says: >=20 > +---------------------+---------------------------------------------+ > | Range | Allocation Policy | > +---------------------+---------------------------------------------+ > | 0 - 15 | Reserved. Never to be made available for | > | | allocation. | >=20 > That text seem to imply never to be deliberately used. >=20 > The confusion arrises because of the text in RFC7274 that notes that legac= y implementations might not notice that the construct XL/ELI/EL is present. I= t is perfectly reasonable to provide the exception for the legacy hardware, h= owever the the text that does seems confusing. I would like to propose that w= e address this confusion by including a further update to RFC7274 in this te= rminology draft: >=20 > OLD > Values 0-15 of the "Extended Special-Purpose MPLS Label Values" > registry are set aside as reserved. Furthermore, values 0-6 and 8-15 > MUST NOT appear in the data plane following an XL; an LSR processing > a packet with an XL at the top of the label stack followed by a label > with value 0-6 or 8-15 MUST drop the packet. >=20 > Label 7 (when received) retains its meaning as Entropy Label > Indicator (ELI) whether a regular special-purpose label or an ESPL; > this is because of backwards compatibility with existing implemented > and deployed code and hardware that looks for the ELI without > verifying if the previous label is XL or not. However, when an LSR > inserts an entropy label, it MUST insert the ELI as a regular > special-purpose label, not as an ESPL. > NEW > Values 0-15 of the "Extended Special-Purpose MPLS Label Values" > registry are set aside as reserved. Furthermore, an implementation > MUST NOT place a label with value 0-15 in the label stack immediately fo= llowing > an XL; an LSR processing a packet with an XL at the top of the label > stack immediately followed by a label with value 0-15 MUST drop the pack= et. >=20 > When inspecting a label stack to find an Entropy Label Indicator > (ELI - label 7) a pre-existing implementation may fail to inspect the > previous label, and so not notice that it is an XL. Such systems can > continue to process the entropy information and forward the packet when t= he previous > label is an XP without causing harm. However, the=20 > packet will be dropped when the XL reaches the top of the stack at anoth= er LSR. > END >=20 > This text clearly demonstrates that legacy LSRs are not expected to police= the <15><7> construct and that nothing bad will happen of they do not= . >=20 > Longer term, I think we might be better served by generating an explicit d= raft that defines the XL behaviour rather than mixing it in with text on dea= llocation policy and the naming of parts of the registry. >=20 > Best regards >=20 > Stewart >=20 >=20 > _______________________________________________ > mpls mailing list > mpls@ietf.org > https://www.ietf.org/mailman/listinfo/mpls --Apple-Mail-FAC1E52A-C61D-4BE4-AEB4-059648083D23 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable Stewart,

Inline plz
<= br>
Sent from my iPhone

On 28 Aug 2020, at 16:26, Stewart Bryant <stewart.bryant@= gmail.com> wrote:

=EF=BB=BFFirst a procedurally point:

"This draft updates RFC7274"

RFC7274 is standards track, and so believe tha= t this terminology draft also needs to be standards track.
=

I=E2=80=99m afraid you are right. Is it only whe= n a Standards Track document references an Informational document we can mak= e a note in the Last Call write up?

Maybe we should= ask the IESG for advice. My concern is that the document is typically Infor= mational.  I=E2=80=99d like to avoid this discussion late in the proces= s. 
 
/Loa

Second technical matter:

In discussing this terminology draft there has been some confusion= regarding the whether the construct XL/ELI/EL (or <15><7><xx= x> as I have described it elsewhere in the thread) is permitted.
Re-reading RFC7274 there is text that seems to expressly forbid= s the construct XL/ELI/EL (or <15><7><xxx>).

The text 

"Values 0-15 of the "Extended Specia= l-Purpose MPLS Label Values"
registry are set aside as reserve= d. "

Is quite clea= r that the whole of that range is reserved. 

In the IANA section it says:

   +---------------------+------------------------------------=
---------+
   | Range               | Allocation Policy                           |
   +---------------------+---------------------------------------------+
   | 0 - 15              | Reserved.  Never to be made available for   |
   |                     | allocation.                                 |

That text seem t= o imply never to be deliberately used.

<= /div>
The confusion arrises because of the text in RFC7274 th= at notes that legacy implementations might not notice that the construct XL/= ELI/EL is present. It is perfectly reasonable to provide the exception for t= he legacy hardware, however the the text that does seems confusing. I would l= ike to propose that we address this confusion by including a further update t= o RFC7274 in this terminology draft:

OLD
  Values 0-15 of the "Extended Spe= cial-Purpose MPLS Label Values"
  registry are set aside a= s reserved.  Furthermore, values 0-6 and 8-15
  MUST= NOT appear in the data plane following an XL; an LSR processing
  a packet with an XL at the top of the label stack followed by a la= bel
  with value 0-6 or 8-15 MUST drop the packet.

  Label 7 (when received) retains its meaning as= Entropy Label
  Indicator (ELI) whether a regular specia= l-purpose label or an ESPL;
  this is because of backward= s compatibility with existing implemented
  and deployed c= ode and hardware that looks for the ELI without
  verifyi= ng if the previous label is XL or not.  However, when an LSR
  inserts an entropy label, it MUST insert the ELI as a regular
  special-purpose label, not as an ESPL.
NEW  Values 0-15 of the "Extended Special-Purpose MPLS Label V= alues"
  registry are set aside as reserved.  Furthe= rmore, an implementation
  MUST NOT place a label with va= lue 0-15 in the label stack immediately following
&n= bsp; an XL; an LSR processing a packet with an XL at the top of the label  stack immediately followed by a label with valu= e 0-15 MUST drop the packet.

  When inspec= ting a label stack to find an Entropy Label Indicator
  (= ELI - label 7) a pre-existing implementation may fail to inspect the
  previous label, and so not notice that  it= is an XL.  Such systems can
  continue to process t= he entropy information and forward the packet when the previous  label is an XP without causing harm. However, t= he 
  packet will be dropped when the XL reaches the= top of the stack at another LSR.
END

This text clearly demonstrates that l= egacy LSRs are not expected to police the  <15><7><xxx&g= t; construct and that nothing bad will happen of they do not.

Longer term, I think we might be= better served by generating an explicit draft that defines the XL behaviour= rather than mixing it in with text on deallocation policy and the naming of= parts of the registry.

Best regards

Stewart


______________________________= _________________
mpls mailing list
mpls@iet= f.org
https://www.ietf.org/mailman/listinfo/mpls
<= /div>
= --Apple-Mail-FAC1E52A-C61D-4BE4-AEB4-059648083D23-- From nobody Fri Aug 28 23:58:06 2020 Return-Path: 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 D494B3A114A; Fri, 28 Aug 2020 23:58:03 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.096 X-Spam-Level: X-Spam-Status: No, score=-2.096 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, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, MIME_QP_LONG_LINE=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.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 TjB7pHoaMSmh; Fri, 28 Aug 2020 23:58:01 -0700 (PDT) Received: from mail-pl1-x633.google.com (mail-pl1-x633.google.com [IPv6:2607:f8b0:4864:20::633]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 3096E3A1149; Fri, 28 Aug 2020 23:58:01 -0700 (PDT) Received: by mail-pl1-x633.google.com with SMTP id k13so666147plk.13; Fri, 28 Aug 2020 23:58:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=content-transfer-encoding:mime-version:subject:from:in-reply-to :date:cc:message-id:references:to; bh=3hdCggUz1MtbtqYRrUycINylNXeW+Eok8fINSyXuqGw=; b=Zs3MBlwQPRWTz7tTW1Wxdbf2V/cqm0S0izGEF89TVXo4MQHrkdkjGeIaMKhvRtBP8+ VAnwQmoUmIRranpIxjBgNM6rVH3fSagJjVQLxB347hn1aP5PYdARdZ6VPtKiooMvmfM1 HC23MX+HR+tUow5ClRf0wIB59Ho7v/bUKJPv82DtxtD4iVBYLTmyWCg0A04LKNoM+m8m R6t3BKNOiaHQ+ojHfqhIxC0IBFlNfDB14saQiolZbfHdR9kMjfeeKB9WgScQrEzUbTr4 5d1j/SJeD8YiTRnxJtq86vAu9kwIxF2+AziaHk6V7nxzV7iVItlE8XKuNxNgvPoizC9r 8o7w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:content-transfer-encoding:mime-version:subject :from:in-reply-to:date:cc:message-id:references:to; bh=3hdCggUz1MtbtqYRrUycINylNXeW+Eok8fINSyXuqGw=; b=GwXs+qIm2YBNh4PrCa3VSv6gb2Rq8ICJyRFr8GTySXDzuyemHI9hcMiimQ5O1/rIGV iaDOgIZvtI8ZeBskUxy6CVMulPXotsgki61PYPo9gbNG2SNzQ89ZVNewNTLC5ohBairQ jOyE+Mg0QEwsmPq8W2I4h5GYIdJjrUoHUj3sySbNNuXOG0ZlWLblZWZvToPntLT2IqqB nPi3AQEtYSPLazei+1BjmZgGQ4UPtsmjgjOmEa4cyZEc1jTPa/5rdQODMA6MoRbpFKAC +eNq6a0HpgBwBWWeV/+k1KzBbeyIzfPgEXNcjkWyN385t880jjvtfX6fLoUG5z+A3HM6 IPXA== X-Gm-Message-State: AOAM5319A6BDu+0gr5bE+Z3FL6y1pHkJYTh3oPsRW7O11op5oTVQ1zqj ECc8pwqPoIrJB4FEnZFypD8K5D7FkOA= X-Google-Smtp-Source: ABdhPJydcxCoN7AUpZrtj10mfTRgj1wL5OEQpTXxeMpqQyTUFfx7GaS8v4riLvgx0RmEiyUEJlpGKg== X-Received: by 2002:a17:902:ab96:: with SMTP id f22mr1897670plr.292.1598684280210; Fri, 28 Aug 2020 23:58:00 -0700 (PDT) Received: from [192.168.8.111] ([110.54.136.28]) by smtp.gmail.com with ESMTPSA id n68sm1436275pfn.145.2020.08.28.23.57.58 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 28 Aug 2020 23:57:59 -0700 (PDT) Content-Type: multipart/alternative; boundary=Apple-Mail-A4ABF3B2-B000-4A08-807D-FC3D3209F859 Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (1.0) From: Loa Andersson In-Reply-To: <6E3FD12F-322C-4D17-80E9-D876084D4D56@gmail.com> Date: Sat, 29 Aug 2020 14:57:55 +0800 Cc: Adrian Farrel , tom petch , Last Call , draft-ietf-mpls-spl-terminology@ietf.org, mpls , mpls-chairs , "BRUNGARD, DEBORAH A" Message-Id: <9637464F-5541-4AE2-AFF1-2B87F1A61B7B@gmail.com> References: <6E3FD12F-322C-4D17-80E9-D876084D4D56@gmail.com> To: Stewart Bryant X-Mailer: iPhone Mail (17G80) Archived-At: Subject: Re: [mpls] [Last-Call] Last Call: (Special Purpose Label terminology) to Informational RFC X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 29 Aug 2020 06:58:04 -0000 --Apple-Mail-A4ABF3B2-B000-4A08-807D-FC3D3209F859 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Stewart, Inline please Sent from my iPhone > On 28 Aug 2020, at 16:26, Stewart Bryant wrote:= >=20 > =EF=BB=BFFirst a procedurally point: >=20 > "This draft updates RFC7274" >=20 > RFC7274 is standards track, and so believe that this terminology draft als= o needs to be standards track. >=20 > Second technical matter: I think this is correct, it also motivates making this a Standards Track doc= ument and sending it back to the wg. The wg never discussed this and we need= wg consensus call. =20 >=20 > In discussing this terminology draft there has been some confusion regardi= ng the whether the construct XL/ELI/EL (or <15><7> as I have described i= t elsewhere in the thread) is permitted. > Re-reading RFC7274 there is text that seems to expressly forbids the const= ruct XL/ELI/EL (or <15><7>). >=20 > The text=20 >=20 > "Values 0-15 of the "Extended Special-Purpose MPLS Label Values" > registry are set aside as reserved. " >=20 > Is quite clear that the whole of that range is reserved.=20 >=20 > In the IANA section it says: >=20 > +---------------------+---------------------------------------------+ > | Range | Allocation Policy | > +---------------------+---------------------------------------------+ > | 0 - 15 | Reserved. Never to be made available for | > | | allocation. | >=20 > That text seem to imply never to be deliberately used. >=20 > The confusion arrises because of the text in RFC7274 that notes that legac= y implementations might not notice that the construct XL/ELI/EL is present. I= t is perfectly reasonable to provide the exception for the legacy hardware, h= owever the the text that does seems confusing. I would like to propose that w= e address this confusion by including a further update to RFC7274 in this te= rminology draft: >=20 > OLD > Values 0-15 of the "Extended Special-Purpose MPLS Label Values" > registry are set aside as reserved. Furthermore, values 0-6 and 8-15 > MUST NOT appear in the data plane following an XL; an LSR processing > a packet with an XL at the top of the label stack followed by a label > with value 0-6 or 8-15 MUST drop the packet. >=20 > Label 7 (when received) retains its meaning as Entropy Label > Indicator (ELI) whether a regular special-purpose label or an ESPL; > this is because of backwards compatibility with existing implemented > and deployed code and hardware that looks for the ELI without > verifying if the previous label is XL or not. However, when an LSR > inserts an entropy label, it MUST insert the ELI as a regular > special-purpose label, not as an ESPL. > NEW > Values 0-15 of the "Extended Special-Purpose MPLS Label Values" > registry are set aside as reserved. Furthermore, an implementation > MUST NOT place a label with value 0-15 in the label stack immediately fo= llowing > an XL; an LSR processing a packet with an XL at the top of the label > stack immediately followed by a label with value 0-15 MUST drop the pack= et. >=20 > When inspecting a label stack to find an Entropy Label Indicator > (ELI - label 7) a pre-existing implementation may fail to inspect the > previous label, and so not notice that it is an XL. Such systems can > continue to process the entropy information and forward the packet when t= he previous > label is an XP without causing harm. However, the=20 > packet will be dropped when the XL reaches the top of the stack at anoth= er LSR. > END >=20 > This text clearly demonstrates that legacy LSRs are not expected to police= the <15><7> construct and that nothing bad will happen of they do not= . Some (shorter) version of this text should go into the document.=20 /Loa >=20 > Longer term, I think we might be better served by generating an explicit d= raft that defines the XL behaviour rather than mixing it in with text on dea= llocation policy and the naming of parts of the registry. >=20 > Best regards >=20 > Stewart >=20 >=20 > _______________________________________________ > mpls mailing list > mpls@ietf.org > https://www.ietf.org/mailman/listinfo/mpls --Apple-Mail-A4ABF3B2-B000-4A08-807D-FC3D3209F859 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable Stewart,

Inline please
Sent from my iPhone

On 28 Aug 2020, at 16:26, Stewart Bryant <stewart.brya= nt@gmail.com> wrote:

=
=EF=BB=BFFirst a procedurally point:

"This draft updates RFC7274"
RFC7274 is standards track, and so believ= e that this terminology draft also needs to be standards track.

Second technical matter:
=

I think this is correct, it also mot= ivates making this a Standards Track document and sending it back to the wg.= The wg never discussed this and we need wg consensus call.  

In discussing this terminology draft there has= been some confusion regarding the whether the construct XL/ELI/EL (or <1= 5><7><xxx> as I have described it elsewhere in the thread) is= permitted.
Re-reading RFC7274 there is text that seems= to expressly forbids the construct XL/ELI/EL (or <15><7><xxx= >).

The text&nb= sp;

"Values 0-15 o= f the "Extended Special-Purpose MPLS Label Values"
registry ar= e set aside as reserved. "

Is quite clear that the whole of that range is reserved. 

In the IANA section it= says:

   +---------------------+----------------=
-----------------------------+
   | Range               | Allocation Policy                           |
   +---------------------+---------------------------------------------+
   | 0 - 15              | Reserved.  Never to be made available for   |
   |                     | allocation.                                 |

That text seem t= o imply never to be deliberately used.

<= /div>
The confusion arrises because of the text in RFC7274 th= at notes that legacy implementations might not notice that the construct XL/= ELI/EL is present. It is perfectly reasonable to provide the exception for t= he legacy hardware, however the the text that does seems confusing. I would l= ike to propose that we address this confusion by including a further update t= o RFC7274 in this terminology draft:

OLD
  Values 0-15 of the "Extended Spe= cial-Purpose MPLS Label Values"
  registry are set aside a= s reserved.  Furthermore, values 0-6 and 8-15
  MUST= NOT appear in the data plane following an XL; an LSR processing
  a packet with an XL at the top of the label stack followed by a la= bel
  with value 0-6 or 8-15 MUST drop the packet.

  Label 7 (when received) retains its meaning as= Entropy Label
  Indicator (ELI) whether a regular specia= l-purpose label or an ESPL;
  this is because of backward= s compatibility with existing implemented
  and deployed c= ode and hardware that looks for the ELI without
  verifyi= ng if the previous label is XL or not.  However, when an LSR
  inserts an entropy label, it MUST insert the ELI as a regular
  special-purpose label, not as an ESPL.
NEW  Values 0-15 of the "Extended Special-Purpose MPLS Label V= alues"
  registry are set aside as reserved.  Furthe= rmore, an implementation
  MUST NOT place a label with va= lue 0-15 in the label stack immediately following
&n= bsp; an XL; an LSR processing a packet with an XL at the top of the label  stack immediately followed by a label with valu= e 0-15 MUST drop the packet.

  When inspec= ting a label stack to find an Entropy Label Indicator
  (= ELI - label 7) a pre-existing implementation may fail to inspect the
  previous label, and so not notice that  it= is an XL.  Such systems can
  continue to process t= he entropy information and forward the packet when the previous  label is an XP without causing harm. However, t= he 
  packet will be dropped when the XL reaches the= top of the stack at another LSR.
END

This text clearly demonstrates that l= egacy LSRs are not expected to police the  <15><7><xxx&g= t; construct and that nothing bad will happen of they do not.

Some (shorter) version of this text should go= into the document. 

/Loa

Longer term, I think we might be better served by generatin= g an explicit draft that defines the XL behaviour rather than mixing it in w= ith text on deallocation policy and the naming of parts of the registry.

Best regards

Stewart


_______________________________________________mpls mailing list
mpls@ietf.org
https= ://www.ietf.org/mailman/listinfo/mpls
= --Apple-Mail-A4ABF3B2-B000-4A08-807D-FC3D3209F859-- From nobody Sat Aug 29 01:00:31 2020 Return-Path: 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 2C9C33A11D7 for ; Sat, 29 Aug 2020 01:00:30 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.9 X-Spam-Level: X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_MSPIKE_H2=-0.001, 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 HVHONADz3-3I for ; Sat, 29 Aug 2020 01:00:28 -0700 (PDT) Received: from huawei.com (lhrrgout.huawei.com [185.176.76.210]) (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 67F453A11D6 for ; Sat, 29 Aug 2020 01:00:28 -0700 (PDT) Received: from lhreml722-chm.china.huawei.com (unknown [172.18.7.107]) by Forcepoint Email with ESMTP id ACEB1401CB0EA94F272C for ; Sat, 29 Aug 2020 09:00:24 +0100 (IST) Received: from nkgeml708-chm.china.huawei.com (10.98.57.160) by lhreml722-chm.china.huawei.com (10.201.108.73) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1913.5; Sat, 29 Aug 2020 09:00:24 +0100 Received: from nkgeml705-chm.china.huawei.com (10.98.57.154) by nkgeml708-chm.china.huawei.com (10.98.57.160) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1913.5; Sat, 29 Aug 2020 16:00:21 +0800 Received: from nkgeml705-chm.china.huawei.com ([10.98.57.154]) by nkgeml705-chm.china.huawei.com ([10.98.57.154]) with mapi id 15.01.1913.007; Sat, 29 Aug 2020 16:00:21 +0800 From: "Xiejingrong (Jingrong)" To: "mpls@ietf.org" Thread-Topic: RFC3032 IPv6 MTU and Fragmentation Handling in MPLS Thread-Index: AdZ92c40HeA4TrkEQdGGZH2Hne3kcw== Date: Sat, 29 Aug 2020 08:00:21 +0000 Message-ID: <670f6b5c6d29411281449cdfcb4a3848@huawei.com> Accept-Language: en-US, zh-CN Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.108.202.118] Content-Type: multipart/alternative; boundary="_000_670f6b5c6d29411281449cdfcb4a3848huaweicom_" MIME-Version: 1.0 X-CFilter-Loop: Reflected Archived-At: Subject: [mpls] RFC3032 IPv6 MTU and Fragmentation Handling in MPLS X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 29 Aug 2020 08:00:30 -0000 --_000_670f6b5c6d29411281449cdfcb4a3848huaweicom_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hello, I am reading rfc3032 regarding the IPv6 MTU and Fragmentation handling in M= PLS technology. I feel that there is some issue in section 3.5 step 4. I have checked the errata to rfc3032, and update RFCs as listed in https://= tools.ietf.org/html/rfc3032, but failed to find any issue or update about t= his topic. Do I miss something or understand something wrong ? Detailed understanding and questions: (1) The section 3.5 step 4 says "If the IP datagram is not larger than 1280= octets, and it contains a fragment header, then ... Convert it into fragme= nts". Does that mean an "Overlapping Fragment" or "cascaded fragment" ? (2) Seems like it should be "If the IP datagram is not larger than 1280 oct= ets, and it *doesn't* contain a fragment header, then ...Convert it into fr= agments". And the following "Reassembly of the fragments will be done at the destinat= ion hosts" seems very well reflect the motivation of this approach. However, this action is something obviously wrong. It damages a customer's = packet, and imposes burden to the host. Seems to me the right action is to configure the "Maximum Initially Labeled= IP Datagram Size" no less than 1280 to convey an IPv6 packet on an Ingress= LSR (Section 3.2) ? Thanks Jingrong --_000_670f6b5c6d29411281449cdfcb4a3848huaweicom_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hello,<= o:p>

I am re= ading rfc3032 regarding the IPv6 MTU and Fragmentation handling in MPLS tec= hnology.

I feel = that there is some issue in section 3.5 step 4.

I have = checked the errata to rfc3032, and update RFCs as listed in https://tools.ietf.org/html= /rfc3032, but failed to find any issue or update about this topic.=

Do I mi= ss something or understand something wrong ?

&n= bsp;

Detaile= d understanding and questions:

(1) The= section 3.5 step 4 says “If the IP datagram is not larger than 1280 = octets, and it contains a fragment header, then … Convert it into fra= gments”.

Does th= at mean an “Overlapping Fragment” or “cascaded fragment&#= 8221; ?

&n= bsp;

(2) See= ms like it should be “If the IP datagram is not larger than 1280 octe= ts, and it *doesn’t* contain a fragment header, then …Convert i= t into fragments”.

And the= following “Reassembly of the fragments will be done at the destinati= on hosts” seems very well reflect the motivation of this approach.

However= , this action is something obviously wrong. It damages a customer’s p= acket, and imposes burden to the host.

Seems t= o me the right action is to configure the “Maximum Initially Labeled = IP Datagram Size” no less than 1280 to convey an IPv6 packet on an In= gress LSR (Section 3.2) ?

&n= bsp;

Thanks<= o:p>

Jingron= g

&n= bsp;

&n= bsp;

--_000_670f6b5c6d29411281449cdfcb4a3848huaweicom_-- From nobody Sat Aug 29 01:51:41 2020 Return-Path: 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 B40523A122C; Sat, 29 Aug 2020 01:51:39 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.895 X-Spam-Level: X-Spam-Status: No, score=-1.895 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_NONE=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 5IQaCYfkA6h9; Sat, 29 Aug 2020 01:51:37 -0700 (PDT) Received: from mta8.iomartmail.com (mta8.iomartmail.com [62.128.193.158]) (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 01A923A1229; Sat, 29 Aug 2020 01:51:36 -0700 (PDT) Received: from vs3.iomartmail.com (vs3.iomartmail.com [10.12.10.124]) by mta8.iomartmail.com (8.14.4/8.14.4) with ESMTP id 07T8pX86024534; Sat, 29 Aug 2020 09:51:33 +0100 Received: from vs3.iomartmail.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A4DF52203D; Sat, 29 Aug 2020 09:51:33 +0100 (BST) Received: from asmtp3.iomartmail.com (unknown [10.12.10.224]) by vs3.iomartmail.com (Postfix) with ESMTPS id 8EE6E2203A; Sat, 29 Aug 2020 09:51:33 +0100 (BST) Received: from LAPTOPK7AS653V ([84.51.134.114]) (authenticated bits=0) by asmtp3.iomartmail.com (8.14.4/8.14.4) with ESMTP id 07T8pW5v026096 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Sat, 29 Aug 2020 09:51:33 +0100 Reply-To: From: "Adrian Farrel" To: "'Loa Andersson'" Cc: , "'mpls'" References: <05a901d67d81$e8f7b790$bae726b0$@olddog.co.uk> In-Reply-To: Date: Sat, 29 Aug 2020 09:51:32 +0100 Organization: Old Dog Consulting Message-ID: <062801d67de1$98b4aee0$ca1e0ca0$@olddog.co.uk> MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Outlook 16.0 Content-Language: en-gb Thread-Index: AQGLtBXlsh/rlBoONIvVbbOGbqJVHgJXAaJoqdGimEA= X-Originating-IP: 84.51.134.114 X-Thinkmail-Auth: adrian@olddog.co.uk X-TM-AS-GCONF: 00 X-TM-AS-Product-Ver: IMSVA-9.0.0.1623-8.2.0.1013-25632.006 X-TM-AS-Result: No--28.273-10.0-31-10 X-imss-scan-details: No--28.273-10.0-31-10 X-TMASE-Version: IMSVA-9.0.0.1623-8.2.1013-25632.006 X-TMASE-Result: 10--28.273400-10.000000 X-TMASE-MatchedRID: oCj5caaCQymWfDtBOz4q2x3Pziq4eLUfaMmm586o4gAW6M2A15L1QEtT GRLzVIs2mVebQLMVmoyr/+Gm/JK2utBVyyx3sVNtwZnkETbEP6pR3sGN+j7mNF33rgHQQnWVsYX 5Wji8DDo1VkQyp7Up/QF074mfVe1sLlr6XFkVTCbx5KZMlKYS/fg/s23WPBIp7VWmYaIPG1yIus hUx+1X0BstkShsNuJbTK+e6q7Yu7JQ6n/rRNAUKgPZZctd3P4B5GNm5cTRaUcFsmz50uKpBscY9 /dSZVY/G0E6NqXLKHUFoHn9QtC/nk6cZmu8CZmKg6yH78e05kXXof+XRfBH2wjbQ1CADWUMKUXR cEsnY+qSEtmXcPvHCnALJ53+Nt4C3zfWGx5cY+FGlnfxNatjnGLtYwH4l0rOb59dURD98Z7v6Fj 2Xtj47C60ItWMnTwwz6hi1XfF3joBIYMQTz4EaSv58RN+FLEjIiTd2l7lf6EjRiu1AuxJTOLRGG msnnSDPQXLmAq/QuztjtOnUrFa2J9vFrcDXJOnUsWKfMf3RadBYQa/eBpSZ9xSVCzxgUrOAEkM7 XlaofgmYLLUCcLP1VNEJON/RPQzYw1f/0r5B966iJsmkdGsWSAeV4oFCpbhwfH2XZhguhAWA9hG tz6LZOfOVcxjDhcwAYt5KiTiutlTptoDfp6JrMRB0bsfrpPIqxB32o9eGclVaBFytIQUtw== X-TMASE-SNAP-Result: 1.821001.0001-0-1-12:0,22:0,33:0,34:0-0 Archived-At: Subject: Re: [mpls] Shepherd review of draft-ietf-mpls-lsp-ping-registries-update-03 X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 29 Aug 2020 08:51:40 -0000 The point with this issue is that you can't expect IANA to read and = process the whole document. They go straight to the IANA considerations = section and work on that. It should, as far as possible (which is = usually all the way) be a stand-alone section. A -----Original Message----- From: Loa Andersson =20 Sent: 29 August 2020 03:48 To: adrian@olddog.co.uk Cc: draft-ietf-mpls-lsp-ping-registries-update@ietf.org; mpls = Subject: Re: [mpls] Shepherd review of = draft-ietf-mpls-lsp-ping-registries-update-03 Adrian, Tnx, very useful. One small point.=20 Sent from my iPhone > On 29 Aug 2020, at 05:26, Adrian Farrel wrote: >=20 > In your comments on section 6. =20 >=20 > 6. >=20 > IANA is requested to update the LSP Ping name space as described in > this document. >=20 > Not sure what the "LSP Ping name space" will mean to IANA. >=20 > Meanwhile in Section 6.1 you have... >=20 > This section details the updated registration procedures and > allocations for Message Type, Reply Mode and Return Codes = registries. >=20 > Are you sure that IANA will know which registries these are? If I go = to > https://www.iana.org/protocols and search for "Message Type" I find 76 > matches. >=20 > So maybe, if Section 6 can set the context in terms of "the family of > Multiprotocol Label Switching (MPLS) Label Switched Paths (LSPs) Ping=20 > Parameters" then 6.1 can talk about those three registries but using > quotes about their names (as "Message Type", "Reply Mode", and "Return > Codes" registries). I thought this was done by listing the =E2=80=9Cin scope = registries=E2=80=9D in section 1.=20 I can repeat the information in section 6 if necessary.=20 /Loa >=20 > Alternatively (or as well) you can use the references that you have at = > the top of Section 8.1 to add clarity. >=20 > --- >=20 > 6.1 >=20 > I feel that this section would be clearer for IANA and historians if=20 > you could break it into three subsections, one for each registry. I = know > this would require a little duplication of text, but it would be a > better read. >=20 > It would also resolve the complication/contradiction with 0 in the > Return Codes registry. >=20 > --- >=20 > 6.1 >=20 > | 1-247 | No changes to the existing | = | > | | assignments | = | >=20 > I believe you could make it clearer to IANA that this is an action you > want them to take, not text you want them to put in the registry. >=20 > --- >=20 > 6.2 >=20 > s/([IANA-Sub-9] is/([IANA-Sub-9]) is/ >=20 > --- >=20 > 6.2 >=20 > Can you help IANA by being more explicit about the changes you want = them > to make? I think there is the main "TLVs" registry to be updated and > then there are a number of sub-TLV registries to be updated as well. I > see: > - Sub-TLVs for TLV Types 1, 16, and 21 > - Sub-TLVs for TLV Type 6 > - Sub-TLVs for TLV Type 11 > - Sub-TLVs for TLV Type 20 > - Sub-TLVs for TLV Type 23 > - Sub-TLVs for TLV Type 27 > And explicitly not: > - Sub-TLVs for TLV Type 9 >=20 > --- >=20 > Are you sure that this document doesn't also update the RFCs that > created some of the sub-TLV registries? For example, RFC 7759 creates > the "Sub-TLVs for TLV Type 27" registry and includes text that says: >=20 > Registration procedures for Sub-TLVs from ranges 0-16383 and > 32768-49161 are by Standards Action. Ranges 16384-31743 and > 49162-64511 are through Specification Required (Experimental RFC > Needed). >=20 > --- >=20 > 6.3=20 >=20 > s/([IANA-Sub-9] is not changed./([IANA-Sub-9] is not changed). >=20 > --- >=20 > 6.3 >=20 > = +-------------+-------------------------------+---------------------+ > | Type | TLV name | Reference = | > = +-------------+-------------------------------+---------------------+ > | 0 | Reserved | This document = | > | 1-31739 | [any] | No changes to the = | > | | | current registry = | > | 37140-37143 | Reserved for Experimental Use | This document = | > | 31744-32767 | FCFS | This document = | > | 32768-64507 | [any] | No changes to the = | > | | | current registry. = | > | 64508-64511 | Reserved for Experimental Use | This document = | > | 64512-65535 | FSFC | This document = | > = +-------------+-------------------------------+---------------------+ >=20 > Similar things:=20 > - Please make it clear what you want IANA to do. In particular that = you > don't want IANA to reproduce the "[any]" text in the registries > - I think it is worth listing the registries just like in 6.2 >=20 > --- >=20 > 7. >=20 > s/Eatlake/Eastlake/ >=20 > _______________________________________________ > mpls mailing list > mpls@ietf.org > https://www.ietf.org/mailman/listinfo/mpls From nobody Sat Aug 29 08:38:12 2020 Return-Path: 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 9C7D23A0C95; Sat, 29 Aug 2020 08:38:11 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.097 X-Spam-Level: X-Spam-Status: No, score=-2.097 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, 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_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] 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definitions=main-2008290124 Archived-At: Subject: Re: [mpls] [Last-Call] Last Call: (Special Purpose Label terminology) to Informational RFC X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 29 Aug 2020 15:38:12 -0000 --_000_BYAPR05MB4565231E5D79DFD4D3C66D19B9530BYAPR05MB4565namp_ Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 SeKAmW0gaW4gZmF2b3Igb2YgdXBkYXRpbmcgdGhpcyBkcmFmdDoNCg0KICAxLiAgIG1ha2luZyBp dCBQUzsNCiAgMi4gIGNsYXJpZnlpbmcgdGVybWlub2xvZ3kgYW5kIHJhbmdlczsNCiAgMy4gIGFk ZGluZyBTdGV3YXJ04oCZcyB0ZXh0IG9uIGxlZ2FjeSBwcm9jZXNzaW5nIG9mIGxhYmVsIDc7DQog IDQuICByZW5hbWluZyB0aGUgZHJhZnQgKGF0IGxlYXN0IHJlbW92ZSDigJxUZXJtaW5vbG9neeKA nSk7DQogIDUuICBzZW5kaW5nIGl0IGJhY2sgdG8gdGhlIFdHLg0KDQpJIGRvbuKAmXQgdGhpbmsg d2UgbmVlZCB0aHJlZSBuZXcgZHJhZnRzIHRvIGRlYWwgd2l0aCB0aGlzLCBidXQgd2UgZG8gbmVl 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[73.63.232.212]) by smtp.gmail.com with ESMTPSA id t20sm2546010pjg.21.2020.08.29.10.33.34 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 29 Aug 2020 10:33:35 -0700 (PDT) Content-Type: multipart/alternative; boundary=Apple-Mail-22D98EBD-E59C-498D-A046-7408F0344DB3 Content-Transfer-Encoding: 7bit From: Jeff Tantsura Mime-Version: 1.0 (1.0) Date: Sat, 29 Aug 2020 10:33:34 -0700 Message-Id: <76F6A848-CFA1-41F8-A5A0-65BD2043934A@gmail.com> References: <9A2C9EEF-D23C-4AA3-AB0F-5B60653EA213@cisco.com> Cc: Kireeti Kompella , Loa Andersson , Stewart Bryant , mpls , "draft-ietf-mpls-spl-terminology@ietf.org" , mpls-chairs , tom petch , Last Call In-Reply-To: <9A2C9EEF-D23C-4AA3-AB0F-5B60653EA213@cisco.com> To: "Acee Lindem (acee)" X-Mailer: iPhone Mail (17G80) Archived-At: Subject: Re: [mpls] [Last-Call] Last Call: (Special Purpose Label terminology) to Informational RFC X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 29 Aug 2020 17:33:44 -0000 --Apple-Mail-22D98EBD-E59C-498D-A046-7408F0344DB3 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable +1 Regards, Jeff > On Aug 29, 2020, at 10:03, Acee Lindem (acee) wrote: >=20 > =EF=BB=BF > I agree with Kireeti. > Thanks, > Acee > =20 > From: mpls on behalf of Kireeti Kompella > Date: Saturday, August 29, 2020 at 11:38 AM > To: Loa Andersson , Stewart Bryant > Cc: mpls , mpls-chairs , Last Call , "draft-ietf-mpls-spl-terminology@ietf.org" , tom petch > Subject: Re: [mpls] [Last-Call] Last Call: (Special Purpose Label terminology) to Informational RFC > =20 > I=E2=80=99m in favor of updating this draft: > 1. making it PS; > 2. clarifying terminology and ranges; > 3. adding Stewart=E2=80=99s text on legacy processing of label 7; > 4. renaming the draft (at least remove =E2=80=9CTerminology=E2=80=9D= ); > 5. sending it back to the WG. > I don=E2=80=99t think we need three new drafts to deal with this, but we d= o need to deal with the issues raised.=20 > =20 > Cheers, > Kireeti > From: Loa Andersson > Sent: Friday, August 28, 2020 11:57:55 PM > To: Stewart Bryant > Cc: Adrian Farrel ; tom petch ; Last Call ; draft-ietf-mpls-spl-terminology@ietf.org <= draft-ietf-mpls-spl-terminology@ietf.org>; mpls ; mpls-chairs= ; BRUNGARD, DEBORAH A > Subject: Re: [mpls] [Last-Call] Last Call: (Special Purpose Label terminology) to Informational RFC > =20 > [External Email. Be cautious of content] >=20 >=20 > Stewart, >=20 > Inline please >=20 > Sent from my iPhone >=20 > > On 28 Aug 2020, at 16:26, Stewart Bryant wrot= e: > > > > First a procedurally point: > > > > "This draft updates RFC7274" > > > > RFC7274 is standards track, and so believe that this terminology draft a= lso needs to be standards track. > > > > Second technical matter: >=20 > I think this is correct, it also motivates making this a Standards Track d= ocument and sending it back to the wg. The wg never discussed this and we ne= ed wg consensus call. > > > > In discussing this terminology draft there has been some confusion regar= ding the whether the construct XL/ELI/EL (or <15><7> as I have describe= d it elsewhere in the thread) is permitted. > > Re-reading RFC7274 there is text that seems to expressly forbids the con= struct XL/ELI/EL (or <15><7>). > > > > The text > > > > "Values 0-15 of the "Extended Special-Purpose MPLS Label Values" > > registry are set aside as reserved. " > > > > Is quite clear that the whole of that range is reserved. > > > > In the IANA section it says: > > > > +---------------------+---------------------------------------------+= > > | Range | Allocation Policy |= > > +---------------------+---------------------------------------------+= > > | 0 - 15 | Reserved. Never to be made available for |= > > | | allocation. |= > > > > That text seem to imply never to be deliberately used. > > > > The confusion arrises because of the text in RFC7274 that notes that leg= acy implementations might not notice that the construct XL/ELI/EL is present= . It is perfectly reasonable to provide the exception for the legacy hardwar= e, however the the text that does seems confusing. I would like to propose t= hat we address this confusion by including a further update to RFC7274 in th= is terminology draft: > > > > OLD > > Values 0-15 of the "Extended Special-Purpose MPLS Label Values" > > registry are set aside as reserved. Furthermore, values 0-6 and 8-15 > > MUST NOT appear in the data plane following an XL; an LSR processing > > a packet with an XL at the top of the label stack followed by a label > > with value 0-6 or 8-15 MUST drop the packet. > > > > Label 7 (when received) retains its meaning as Entropy Label > > Indicator (ELI) whether a regular special-purpose label or an ESPL; > > this is because of backwards compatibility with existing implemented > > and deployed code and hardware that looks for the ELI without > > verifying if the previous label is XL or not. However, when an LSR > > inserts an entropy label, it MUST insert the ELI as a regular > > special-purpose label, not as an ESPL. > > NEW > > Values 0-15 of the "Extended Special-Purpose MPLS Label Values" > > registry are set aside as reserved. Furthermore, an implementation > > MUST NOT place a label with value 0-15 in the label stack immediately f= ollowing > > an XL; an LSR processing a packet with an XL at the top of the label > > stack immediately followed by a label with value 0-15 MUST drop the pa= cket. > > > > When inspecting a label stack to find an Entropy Label Indicator > > (ELI - label 7) a pre-existing implementation may fail to inspect the > > previous label, and so not notice that it is an XL. Such systems can= > > continue to process the entropy information and forward the packet whe= n the previous > > label is an XP without causing harm. However, the > > packet will be dropped when the XL reaches the top of the stack at ano= ther LSR. > > END > > > > This text clearly demonstrates that legacy LSRs are not expected to poli= ce the <15><7> construct and that nothing bad will happen of they do n= ot > =20 > Juniper Business Use Only >=20 > _______________________________________________ > mpls mailing list > mpls@ietf.org > https://www.ietf.org/mailman/listinfo/mpls --Apple-Mail-22D98EBD-E59C-498D-A046-7408F0344DB3 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable +1

Regards,
Jef= f

On Aug 29, 2020,= at 10:03, Acee Lindem (acee) <acee=3D40cisco.com@dmarc.ietf.org> wrot= e:

=EF=BB= =BF

I agree with Kireeti.

Thanks,

Acee

 

From: mpls <mpls-bounce= s@ietf.org> on behalf of Kireeti Kompella <kireeti=3D40juniper.net@dma= rc.ietf.org>
Date: Saturday, August 29, 2020 at 11:38 AM
To: Loa Andersson <loa.pi.nu@gmail.com>, Stewart Bryant <ste= wart.bryant@gmail.com>
Cc: mpls <mpls@ietf.org>, mpls-chairs <mpls-chairs@ietf.org&= gt;, Last Call <last-call@ietf.org>, "draft-ietf-mpls-spl-terminology@= ietf.org" <draft-ietf-mpls-spl-terminology@ietf.org>, tom petch <da= edulus@btconnect.com>
Subject: Re: [mpls] [Last-Call] Last Call: <draft-ietf-mpls-spl-te= rminology-03.txt> (Special Purpose Label terminology) to Informational RFC=

 

I=E2=80=99m in favor of up= dating this draft:

1.        making it PS;

2.       clarifying terminology and ranges;

3.       adding Stewart=E2=80=99s text on legacy processi= ng of label 7;

4.       renaming the draft (at least remove =E2=80=9CTer= minology=E2=80=9D);

5.       sending it back to the WG.

I don=E2=80=99t think we n= eed three new drafts to deal with this, but we do need to deal with the issu= es raised. 

 

Cheers,

Kireeti

From: Loa Andersson <loa.pi.n= u@gmail.com>
Sent: Friday, August 28, 2020 11:57:55 PM
To: Stewart Bryant <stewart.bryant@gmail.com>
Cc: Adrian Farrel <adrian@olddog.co.uk>; tom petch <daedulus= @btconnect.com>; Last Call <last-call@ietf.org>; draft-ietf-mpls-sp= l-terminology@ietf.org <draft-ietf-mpls-spl-terminology@ietf.org>; mpl= s <mpls@ietf.org>; mpls-chairs <mpls-chairs@ietf.org>; BRUNGARD, DEBORAH A <db3546@att.com>
Subject: Re: [mpls] [Last-Call] Last Call: <draft-ietf-mpls-spl-te= rminology-03.txt> (Special Purpose Label terminology) to Informational RFC=

 

[External Email. Be cautio= us of content]


Stewart,

Inline please

Sent from my iPhone

> On 28 Aug 2020, at 16:26, Stewart Bryant <stewart.bryant@gmail.com&g= t; wrote:
>
> First a procedurally point:
>
> "This draft updates RFC7274"
>
> RFC7274 is standards track, and so believe that this terminology draft a= lso needs to be standards track.
>
> Second technical matter:

I think this is correct, it also motivates making this a Standards Track doc= ument and sending it back to the wg. The wg never discussed this and we need= wg consensus call.
>
> In discussing this terminology draft there has been some confusion rega= rding the whether the construct XL/ELI/EL (or <15><7><xxx>= as I have described it elsewhere in the thread) is permitted.
> Re-reading RFC7274 there is text that seems to expressly forbids the co= nstruct XL/ELI/EL (or <15><7><xxx>).
>
> The text
>
> "Values 0-15 of the "Extended Special-Purpose MPLS Label Values"
> registry are set aside as reserved. "
>
> Is quite clear that the whole of that range is reserved.
>
> In the IANA section it says:
>
>    +---------------------+------------------------------= ---------------+
>    | Range       &nbs= p;       | Allocation Policy   =             &nbs= p;           |
>    +---------------------+------------------------------= ---------------+
>    | 0 - 15       &nb= sp;      | Reserved.  Never to be made availab= le for   |
>    |        &nbs= p;            | alloc= ation.           &nbs= p;            &n= bsp;        |
>
> That text seem to imply never to be deliberately used.
>
> The confusion arrises because of the text in RFC7274 that notes that le= gacy implementations might not notice that the construct XL/ELI/EL is presen= t. It is perfectly reasonable to provide the exception for the legacy hardwa= re, however the the text that does seems confusing. I would like to propose that we address this confusion by i= ncluding a further update to RFC7274 in this terminology draft:
>
> OLD
>   Values 0-15 of the "Extended Special-Purpose MPLS Label Val= ues"
>   registry are set aside as reserved.  Furthermore, valu= es 0-6 and 8-15
>   MUST NOT appear in the data plane following an XL; an LSR p= rocessing
>   a packet with an XL at the top of the label stack followed b= y a label
>   with value 0-6 or 8-15 MUST drop the packet.
>
>   Label 7 (when received) retains its meaning as Entropy Labe= l
>   Indicator (ELI) whether a regular special-purpose label or a= n ESPL;
>   this is because of backwards compatibility with existing im= plemented
>   and deployed code and hardware that looks for the ELI witho= ut
>   verifying if the previous label is XL or not.  However= , when an LSR
>   inserts an entropy label, it MUST insert the ELI as a regul= ar
>   special-purpose label, not as an ESPL.
> NEW
>   Values 0-15 of the "Extended Special-Purpose MPLS Label Val= ues"
>   registry are set aside as reserved.  Furthermore, an i= mplementation
>   MUST NOT place a label with value 0-15 in the label stack i= mmediately following
>   an XL; an LSR processing a packet with an XL at the top of t= he label
>   stack immediately followed by a label with value 0-15 MUST d= rop the packet.
>
>   When inspecting a label stack to find an Entropy Label Indi= cator
>   (ELI - label 7) a pre-existing implementation may fail to i= nspect the
>   previous label, and so not notice that  it is an XL.&n= bsp; Such systems can
>   continue to process the entropy information and forward the= packet when the previous
>   label is an XP without causing harm. However, the
>   packet will be dropped when the XL reaches the top of the s= tack at another LSR.
> END
>
> This text clearly demonstrates that legacy LSRs are not expected to pol= ice the  <15><7><xxx> construct and that nothing bad w= ill happen of they do not

 

Juniper Business Use Only

_______________________________________________
mpls m= ailing list
mpls@ietf.org
https://www.ietf.o= rg/mailman/listinfo/mpls
= --Apple-Mail-22D98EBD-E59C-498D-A046-7408F0344DB3-- From nobody Sat Aug 29 11:47:49 2020 Return-Path: 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 BD3D23A0F0D; Sat, 29 Aug 2020 11:47:47 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.698 X-Spam-Level: X-Spam-Status: No, score=-0.698 tagged_above=-999 required=5 tests=[BAYES_05=-0.5, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.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 Yo7uyVW-MeN1; Sat, 29 Aug 2020 11:47:46 -0700 (PDT) Received: from mail-lf1-x12c.google.com (mail-lf1-x12c.google.com [IPv6:2a00:1450:4864:20::12c]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 75C643A0F0A; Sat, 29 Aug 2020 11:47:46 -0700 (PDT) Received: by mail-lf1-x12c.google.com with SMTP id q8so1404255lfb.6; Sat, 29 Aug 2020 11:47:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=zGl+IXsYjEdCJwJwhxothuDviQsZcL6ncVUC52uaSes=; b=WLbenQD8sZ1E70RfsVhiVdydazQNWX35FQqiD4ZngQTAoIk8DPy1mYU2PiC2jTs9V0 dhDDoAZNM4Id8NlCZCPhaGg9JWmtERIn4yjNHMPKsPnwg+38TY7k1AgLDwL5yCLFY9kS 6su/cRUtatRWKPVUNtI/9M50G4PuCZ/Irfv1Nnex8dd5r3Fimandl5adzJgMgQJDbSuB D8wECl77dcK94tsGT3lmYyBYfe7Bct7JmmJT8OXyCUW+2JoATy53mw1W2QGu1ik/Q7UJ iUYVG+DMY75FFELu1ydpMAJhS78HdRSWOND8pTyZTaA1LGHf8DzDZJmwRCltyKY8ZRol 0v1g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=zGl+IXsYjEdCJwJwhxothuDviQsZcL6ncVUC52uaSes=; b=j42eFm2nOyYXr6UhsNMWc8e10ZMPIrZqNcU9OFDs6iX1olhU8j+Tks6paIGtzN10yD hfTZZIAxXDvYEQKcVY4mt5flKUyqy/LhXYa7u/CORVps0IkFKu7jnp6Ecu5mFmJiyWMU JlL7Xq0BZU3I27h/BfqjLxymyOU5qXWHD37T19RXg+C51lxR94QY+Wdyygja3A/+WwTH GbvHie08iG7FffpnqLOM152hQhVralIYwKPTKAXWmBNk308L3mVGG+wkzCX5aLcRCcQd Z7CH6ZfSyLs7aw26DaeXiTJjrGuLkfFUNGP/bO2NcmKxp4NuhAEKXpgm4mXQ53WwePu/ 9JFg== X-Gm-Message-State: AOAM532lmv/MhOWjLICCAMdk+ZwDBesXc3pwUXzrPC+vIrpyyAHWAngH DkSrM5HKPv26QBgHVWuWLk1FZgx+ccLJ+VALc2SORot1 X-Google-Smtp-Source: ABdhPJxO42GYPX9TB0wguqvbfoqa6K18gmX/qyn0v/1r44d6YnLpEW+gWOHVIlDumIYtXA9sncOgO0V49E+6vfMLDmE= X-Received: by 2002:a05:6512:36c2:: with SMTP id e2mr2041776lfs.98.1598726864213; Sat, 29 Aug 2020 11:47:44 -0700 (PDT) MIME-Version: 1.0 From: Greg Mirsky Date: Sat, 29 Aug 2020 11:47:34 -0700 Message-ID: To: draft-ietf-mpls-lsp-ping-registries-update@ietf.org, mpls Content-Type: multipart/alternative; boundary="000000000000d59a3705ae089a81" Archived-At: Subject: [mpls] Nit in draft-ietf-mpls-lsp-ping-registries-update X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 29 Aug 2020 18:47:48 -0000 --000000000000d59a3705ae089a81 Content-Type: text/plain; charset="UTF-8" Dear Authors, I've noticed one nit in Section 6.2: s/Rserved/Reserved/2 Hope it helps. Regards, Greg --000000000000d59a3705ae089a81 Content-Type: text/html; charset="UTF-8"
Dear Authors,
I've noticed one nit in Section 6.2:
s/Rserved/Reserved/2

Hope it helps.

Regards,
Greg
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(PDT) Received: from DM5PR1901MB2150.namprd19.prod.outlook.com ([2603:1036:4:9e::5]) by smtp.gmail.com with ESMTPSA id 193sm2124512ile.13.2020.08.29.16.46.42 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sat, 29 Aug 2020 16:46:42 -0700 (PDT) From: Tarek Saad To: "adrian@olddog.co.uk" , "draft-ietf-mpls-lsp-ping-registries-update@ietf.org" CC: 'mpls' Thread-Topic: [mpls] IPR Poll on draft-ietf-mpls-lsp-ping-registries-update Thread-Index: ASQ3ZCRkg37LD1kaVVwJIdp2ydQ/0eSN9QB2 X-MS-Exchange-MessageSentRepresentingType: 1 Date: Sat, 29 Aug 2020 23:46:41 +0000 Message-ID: References: <053301d67d38$d6d2ad20$84780760$@olddog.co.uk> In-Reply-To: <053301d67d38$d6d2ad20$84780760$@olddog.co.uk> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-Exchange-Organization-SCL: -1 X-MS-TNEF-Correlator: X-MS-Exchange-Organization-RecordReviewCfmType: 0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Subject: Re: [mpls] IPR Poll on draft-ietf-mpls-lsp-ping-registries-update X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 29 Aug 2020 23:46:47 -0000 SGkgQWRyaWFuLA0KDQpJIGFtIG5vdCBhd2FyZSBvZiBhbnkgSVBSIHRoYXQgYXBwbGllcyB0byB0 aGlzIGRvY3VtZW50Lg0KDQpSZWdhcmRzLA0KVGFyZWsNCg0KDQrvu79PbiA4LzI4LzIwLCA4OjQz IEFNLCAibXBscyBvbiBiZWhhbGYgb2YgQWRyaWFuIEZhcnJlbCIgPG1wbHMtYm91bmNlc0BpZXRm Lm9yZyBvbiBiZWhhbGYgb2YgYWRyaWFuQG9sZGRvZy5jby51az4gd3JvdGU6DQoNCiAgICBIaSBh dXRob3JzIG9mIGRyYWZ0LWlldGYtbXBscy1sc3AtcGluZy1yZWdpc3RyaWVzLXVwZGF0ZSwNCg0K ICAgIFByZXBhcmF0b3J5IHRvIGFkdmFuY2luZyB0aGlzIGRvY3VtZW50LCBjb3VsZCB5b3UgcGxl YXNlIHJlc3BvbmQgdG8gdGhpcw0KICAgIGVtYWlsIChvbiBsaXN0KSB0byBjb25maXJtIHdoZXRo ZXIgeW91IGFyZSBhd2FyZSBvZiBJUFIgdGhhdCBhcHBsaWVzIHRvIHRoaXMNCiAgICBkb2N1bWVu 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b3N1cmVzLg0KDQogICAgVGhhbmtzLA0KICAgIEFkcmlhbg0KDQogICAgX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18NCiAgICBtcGxzIG1haWxpbmcgbGlzdA0K ICAgIG1wbHNAaWV0Zi5vcmcNCiAgICBodHRwczovL3d3dy5pZXRmLm9yZy9tYWlsbWFuL2xpc3Rp bmZvL21wbHMNCg== From nobody Sat Aug 29 17:03:12 2020 Return-Path: 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 2D94F3A11E1; Sat, 29 Aug 2020 17:03:11 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.098 X-Spam-Level: X-Spam-Status: No, score=-2.098 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, FREEMAIL_FROM=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com Received: from mail.ietf.org 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-0700 (PDT) Content-Type: multipart/alternative; boundary=Apple-Mail-F00061A4-73AA-4546-A8A3-42EEAD6C17DD Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (1.0) From: Loa Andersson In-Reply-To: Date: Sun, 30 Aug 2020 16:32:19 +0800 Cc: Stewart Bryant , Adrian Farrel , tom petch , Last Call , "draft-ietf-mpls-spl-terminology@ietf.org" , mpls , mpls-chairs , "BRUNGARD, DEBORAH A" Message-Id: References: To: Kireeti Kompella X-Mailer: iPhone Mail (17G80) Archived-At: Subject: Re: [mpls] [Last-Call] Last Call: (Special Purpose Label terminology) to Informational RFC X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 30 Aug 2020 08:32:25 -0000 --Apple-Mail-F00061A4-73AA-4546-A8A3-42EEAD6C17DD Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Kireeti, Sent from my iPhone > On 29 Aug 2020, at 23:38, Kireeti Kompella wrote: >=20 > =EF=BB=BF > I=E2=80=99m in favor of updating this draft: > making it PS; > clarifying terminology and ranges; > adding Stewart=E2=80=99s text on legacy processing of label 7; > renaming the draft (at least remove =E2=80=9CTerminology=E2=80=9D); > sending it back to the WG. Yes, I agree to the content of this list, but I think #5 comes first, then t= he working group decide what to do (I don=E2=80=99t expect any surprises). Deborah, I guess this is on your table.=20 /Loa > I don=E2=80=99t think we need three new drafts to deal with this, but we d= o need to deal with the issues raised.=20 >=20 > Cheers, > Kireeti > From: Loa Andersson > Sent: Friday, August 28, 2020 11:57:55 PM > To: Stewart Bryant > Cc: Adrian Farrel ; tom petch ; Last Call ; draft-ietf-mpls-spl-terminology@ietf.org <= draft-ietf-mpls-spl-terminology@ietf.org>; mpls ; mpls-chairs= ; BRUNGARD, DEBORAH A > Subject: Re: [mpls] [Last-Call] Last Call: (Special Purpose Label terminology) to Informational RFC > =20 > [External Email. Be cautious of content] >=20 >=20 > Stewart, >=20 > Inline please >=20 > Sent from my iPhone >=20 > > On 28 Aug 2020, at 16:26, Stewart Bryant wrot= e: > > > > =EF=BB=BFFirst a procedurally point: > > > > "This draft updates RFC7274" > > > > RFC7274 is standards track, and so believe that this terminology draft a= lso needs to be standards track. > > > > Second technical matter: >=20 > I think this is correct, it also motivates making this a Standards Track d= ocument and sending it back to the wg. The wg never discussed this and we ne= ed wg consensus call. > > > > In discussing this terminology draft there has been some confusion regar= ding the whether the construct XL/ELI/EL (or <15><7> as I have describe= d it elsewhere in the thread) is permitted. > > Re-reading RFC7274 there is text that seems to expressly forbids the con= struct XL/ELI/EL (or <15><7>). > > > > The text > > > > "Values 0-15 of the "Extended Special-Purpose MPLS Label Values" > > registry are set aside as reserved. " > > > > Is quite clear that the whole of that range is reserved. > > > > In the IANA section it says: > > > > +---------------------+---------------------------------------------+= > > | Range | Allocation Policy |= > > +---------------------+---------------------------------------------+= > > | 0 - 15 | Reserved. Never to be made available for |= > > | | allocation. |= > > > > That text seem to imply never to be deliberately used. > > > > The confusion arrises because of the text in RFC7274 that notes that leg= acy implementations might not notice that the construct XL/ELI/EL is present= . It is perfectly reasonable to provide the exception for the legacy hardwar= e, however the the text that does seems confusing. I would like to propose t= hat we address this confusion by including a further update to RFC7274 in th= is terminology draft: > > > > OLD > > Values 0-15 of the "Extended Special-Purpose MPLS Label Values" > > registry are set aside as reserved. Furthermore, values 0-6 and 8-15 > > MUST NOT appear in the data plane following an XL; an LSR processing > > a packet with an XL at the top of the label stack followed by a label > > with value 0-6 or 8-15 MUST drop the packet. > > > > Label 7 (when received) retains its meaning as Entropy Label > > Indicator (ELI) whether a regular special-purpose label or an ESPL; > > this is because of backwards compatibility with existing implemented > > and deployed code and hardware that looks for the ELI without > > verifying if the previous label is XL or not. However, when an LSR > > inserts an entropy label, it MUST insert the ELI as a regular > > special-purpose label, not as an ESPL. > > NEW > > Values 0-15 of the "Extended Special-Purpose MPLS Label Values" > > registry are set aside as reserved. Furthermore, an implementation > > MUST NOT place a label with value 0-15 in the label stack immediately f= ollowing > > an XL; an LSR processing a packet with an XL at the top of the label > > stack immediately followed by a label with value 0-15 MUST drop the pa= cket. > > > > When inspecting a label stack to find an Entropy Label Indicator > > (ELI - label 7) a pre-existing implementation may fail to inspect the > > previous label, and so not notice that it is an XL. Such systems can= > > continue to process the entropy information and forward the packet whe= n the previous > > label is an XP without causing harm. However, the > > packet will be dropped when the XL reaches the top of the stack at ano= ther LSR. > > END > > > > This text clearly demonstrates that legacy LSRs are not expected to poli= ce the <15><7> construct and that nothing bad will happen of they do n= ot >=20 > Juniper Business Use Only --Apple-Mail-F00061A4-73AA-4546-A8A3-42EEAD6C17DD Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable Kireeti,

Sent from m= y iPhone

On 29 Aug 2020,= at 23:38, Kireeti Kompella <kireeti@juniper.net> wrote:

=EF=BB=BF
I=E2=80=99m in favor of updating this draft:
  1.  making it PS;
  2. c= larifying terminology and ranges;
  3. adding Stewart=E2=80=99s t= ext on legacy processing of label 7;
  4. renaming the draft (at least remove =E2=80=9CTerminology=E2=80=9D= );
  5. sending it back to the= WG.

Yes, I agree to the content of this list, but I think #5 comes first, the= n the working group decide what to do (I don=E2=80=99t expect any surprises)= .

Deborah,
I guess this is on your table. =

/Loa
I don=E2=80=99t think we need three new drafts to deal with= this, but we do need to deal with the issues raised. 

Cheers,
Kireeti
From: Loa Andersson <loa.p= i.nu@gmail.com>
Sent: Friday, August 28, 2020 11:57:55 PM
To: Stewart Bryant <stewart.bryant@gmail.com>
Cc: Adrian Farrel <adrian@olddog.co.uk>; tom petch <daedulus= @btconnect.com>; Last Call <last-call@ietf.org>; draft-ietf-mpls-sp= l-terminology@ietf.org <draft-ietf-mpls-spl-terminology@ietf.org>; mpl= s <mpls@ietf.org>; mpls-chairs <mpls-chairs@ietf.org>; BRUNGARD, DEBORAH A <db3546@att.com>
Subject: Re: [mpls] [Last-Call] Last Call: <draft-ietf-mpls-spl-te= rminology-03.txt> (Special Purpose Label terminology) to Informational RFC=
 
[External Email. Be cautious of content]


Stewart,

Inline please

Sent from my iPhone

> On 28 Aug 2020, at 16:26, Stewart Bryant <stewart.bryant@gmail.com&g= t; wrote:
>
> =EF=BB=BFFirst a procedurally point:
>
> "This draft updates RFC7274"
>
> RFC7274 is standards track, and so believe that this terminology draft a= lso needs to be standards track.
>
> Second technical matter:

I think this is correct, it also motivates making this a Standards Track doc= ument and sending it back to the wg. The wg never discussed this and we need= wg consensus call.
>
> In discussing this terminology draft there has been some confusion rega= rding the whether the construct XL/ELI/EL (or <15><7><xxx>= as I have described it elsewhere in the thread) is permitted.
> Re-reading RFC7274 there is text that seems to expressly forbids the co= nstruct XL/ELI/EL (or <15><7><xxx>).
>
> The text
>
> "Values 0-15 of the "Extended Special-Purpose MPLS Label Values"
> registry are set aside as reserved. "
>
> Is quite clear that the whole of that range is reserved.
>
> In the IANA section it says:
>
>    +---------------------+------------------------------= ---------------+
>    | Range       &nbs= p;       | Allocation Policy   =             &nbs= p;           |
>    +---------------------+------------------------------= ---------------+
>    | 0 - 15       &nb= sp;      | Reserved.  Never to be made availab= le for   |
>    |        &nbs= p;            | alloc= ation.           &nbs= p;            &n= bsp;        |
>
> That text seem to imply never to be deliberately used.
>
> The confusion arrises because of the text in RFC7274 that notes that le= gacy implementations might not notice that the construct XL/ELI/EL is presen= t. It is perfectly reasonable to provide the exception for the legacy hardwa= re, however the the text that does seems confusing. I would like to propose that we address this confusion by i= ncluding a further update to RFC7274 in this terminology draft:
>
> OLD
>   Values 0-15 of the "Extended Special-Purpose MPLS Label Val= ues"
>   registry are set aside as reserved.  Furthermore, valu= es 0-6 and 8-15
>   MUST NOT appear in the data plane following an XL; an LSR p= rocessing
>   a packet with an XL at the top of the label stack followed b= y a label
>   with value 0-6 or 8-15 MUST drop the packet.
>
>   Label 7 (when received) retains its meaning as Entropy Labe= l
>   Indicator (ELI) whether a regular special-purpose label or a= n ESPL;
>   this is because of backwards compatibility with existing im= plemented
>   and deployed code and hardware that looks for the ELI witho= ut
>   verifying if the previous label is XL or not.  However= , when an LSR
>   inserts an entropy label, it MUST insert the ELI as a regul= ar
>   special-purpose label, not as an ESPL.
> NEW
>   Values 0-15 of the "Extended Special-Purpose MPLS Label Val= ues"
>   registry are set aside as reserved.  Furthermore, an i= mplementation
>   MUST NOT place a label with value 0-15 in the label stack i= mmediately following
>   an XL; an LSR processing a packet with an XL at the top of t= he label
>   stack immediately followed by a label with value 0-15 MUST d= rop the packet.
>
>   When inspecting a label stack to find an Entropy Label Indi= cator
>   (ELI - label 7) a pre-existing implementation may fail to i= nspect the
>   previous label, and so not notice that  it is an XL.&n= bsp; Such systems can
>   continue to process the entropy information and forward the= packet when the previous
>   label is an XP without causing harm. However, the
>   packet will be dropped when the XL reaches the top of the s= tack at another LSR.
> END
>
> This text clearly demonstrates that legacy LSRs are not expected to pol= ice the  <15><7><xxx> construct and that nothing bad w= ill happen of they do not

Juniper Business Use Only

= --Apple-Mail-F00061A4-73AA-4546-A8A3-42EEAD6C17DD-- From nobody Sun Aug 30 08:33:51 2020 Return-Path: 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 967A93A0B33; Sun, 30 Aug 2020 08:33:50 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.098 X-Spam-Level: X-Spam-Status: No, score=-2.098 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, FREEMAIL_FROM=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.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 BL69TWlS4ZRw; Sun, 30 Aug 2020 08:33:48 -0700 (PDT) Received: from mail-pl1-x631.google.com (mail-pl1-x631.google.com [IPv6:2607:f8b0:4864:20::631]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 032743A0B34; Sun, 30 Aug 2020 08:33:47 -0700 (PDT) Received: by mail-pl1-x631.google.com with SMTP id x18so629076pll.6; Sun, 30 Aug 2020 08:33:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=content-transfer-encoding:from:mime-version:subject:date:message-id :references:cc:in-reply-to:to; bh=otanQlggQpz+lOqnNugCPscT6ih5Taag/j5eqPTOfa4=; b=Fl20BxCXWb6NMNZJv+qqDzwEZjk8S6WHk2NE1Yzgz9F23DF8KNi3eKdLBayFHp+tYv Un3nAhjGC+gzT9Cfki9p0L2IMYSQ04io9SydOj/zZLFJxE5Qsw63wnoS4Y8jka6a2Cay o+fTV0f5jXzaJptoOJMIsVHOvGGCHiCypt4nHsUr3qI9RgnMUTqgzBQGL26uoc0XbtfC pQeD2d7H/vnJVyz05uoHKfVoUuP2DWPtkXt+iOdBSMiVKj7bh5ETSEgiy2w/kS6KKnzv B05/rUyY1RVLZ/jkaOO1H2IOH8C1rn/9HW8Q4ylYZfOdngjgO124wHRi1wFBLWUhSz/P VLrA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:content-transfer-encoding:from:mime-version :subject:date:message-id:references:cc:in-reply-to:to; bh=otanQlggQpz+lOqnNugCPscT6ih5Taag/j5eqPTOfa4=; b=EuZA0ljjpgwhXH+nNtjux1EpD//gBaqm7hBVFE28K9zakEqMTyuFdozGm1KSHEfyol FUY3qEzFqRLE9TGTrzUeHrxO+hgenllcec2cW+X2OPFt8JjwuUaxXS0eRlErLmpj9Ha1 rKeZjS4QlTPyzomxYgQ2o0jvmRefw4obwMdIqPy6K4GDQletNNu6m3U8vXbAgQ4pDlbf NTGgbajKmV2sWBAWvMfHuNRREtyE9ps5xYN0hFT91js545MbBf/AdK3AntClR92WAug7 2R6AMafVuV+oNQvEIaAak88f1dXZo1b/AyEQt9Yzs7nkytQNFbuKeP24dQ/2qwE0LsYb BHZw== X-Gm-Message-State: AOAM531s105X+QZ/kTXqutpCioOyu2qI8dbngaQ+ddgMM1H1Ib5ViCMf 5/hgHkuLYyFtGjFssT3v3eddlooVunU= X-Google-Smtp-Source: ABdhPJx2YB3srdO+26pgvH9OR3K8JfKiZ06aYUFI69Daghkmk7C2vT9KeqeApzPewz4Cze9zLOW3RQ== X-Received: by 2002:a17:90a:a601:: with SMTP id c1mr1292358pjq.130.1598801627188; Sun, 30 Aug 2020 08:33:47 -0700 (PDT) Received: from [192.168.1.7] ([122.2.108.29]) by smtp.gmail.com with ESMTPSA id x1sm5281993pfp.7.2020.08.30.08.33.45 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 30 Aug 2020 08:33:46 -0700 (PDT) Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable From: Loa Andersson Mime-Version: 1.0 (1.0) Date: Sun, 30 Aug 2020 23:33:43 +0800 Message-Id: <42890071-E980-4402-91EE-8217BF11F4C4@gmail.com> References: Cc: draft-ietf-mpls-lsp-ping-registries-update@ietf.org, mpls In-Reply-To: To: Greg Mirsky X-Mailer: iPad Mail (17G80) Archived-At: Subject: Re: [mpls] Nit in draft-ietf-mpls-lsp-ping-registries-update X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 30 Aug 2020 15:33:51 -0000 Greg,=20 Fixed in my working copy. ETA Wednesday. /Loa Sent from my iPad > On 30 Aug 2020, at 02:48, Greg Mirsky wrote: >=20 > =EF=BB=BF > Dear Authors, > I've noticed one nit in Section 6.2: > s/Rserved/Reserved/2 >=20 > Hope it helps. >=20 > Regards, > Greg > _______________________________________________ > mpls mailing list > mpls@ietf.org > https://www.ietf.org/mailman/listinfo/mpls From nobody Sun Aug 30 23:37:42 2020 Return-Path: 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 B663F3A0F8E; Sun, 30 Aug 2020 23:37:37 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.097 X-Spam-Level: X-Spam-Status: No, score=-2.097 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, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, MIME_QP_LONG_LINE=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.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 LkBw2G75PE5i; Sun, 30 Aug 2020 23:37:36 -0700 (PDT) Received: from mail-wm1-x32c.google.com (mail-wm1-x32c.google.com [IPv6:2a00:1450:4864:20::32c]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 56D843A0F7B; Sun, 30 Aug 2020 23:37:36 -0700 (PDT) Received: by mail-wm1-x32c.google.com with SMTP id w2so4292067wmi.1; Sun, 30 Aug 2020 23:37:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=content-transfer-encoding:mime-version:subject:from:in-reply-to :date:cc:message-id:references:to; bh=K7zQufc5K2Y5iCAAArL8cEk3vZFIH1u7Is+Cg/c3G1c=; b=bZTUENZ33CCp89x32M7W1I5R+jxhLOLX0KQUrB4BhAFamUzuNKMN8z2mV4Iw8C7qrr XXfY+fpnOXGW7lcLctRcLAUVMQcYvdLzBxt/IzJD86Zo3REl3R06YaOw/PaM3AX8mDaC eHW3f2d+t5032WtaVJu+rB+vGezSceAxaiMpjQ1Dz28FLLeRyaZWEXQJbKcXDn4a3VLJ iiA93H2WTE5eBpijnc8RVcRzIIi22Pu/1T4cOZ8t6iOLPpqmirMW0UxZfLVRQsdow5M2 uUp/25hK07WNcu2+uwXaEfJq2yAxLUSehCmaDQRls4DqopaU4fO6IIjUjaQS2UWtqBJc x3iQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:content-transfer-encoding:mime-version:subject :from:in-reply-to:date:cc:message-id:references:to; bh=K7zQufc5K2Y5iCAAArL8cEk3vZFIH1u7Is+Cg/c3G1c=; b=hkWe19DJ6JgHQAp+maeRUwKoOt3/QN5mh1U2cs4X6Qbvw5+4RnOd2E7/AcyUgZ371X k2mrF9TwCrwjdpvEuM3Fx7eWeesLribo3HdvUPzGWbFtBg5N+3R+xjOhYXt/soo3+tqH 8RRnroO4qiaMhd/WifOkdXB0sIdq7+BGzKysHE/7Y7OkW/73a1bu5l6A2WKq6mZFFHDA OWaepAvY9d/WzicFwZEVB+l3mWiL7tmtimXDZJDVG47IQ1FyIg5xNzn4VHOlVyImWETL 51cGipdymqXCLaVuVfQGgCMZklf7Rv7oDp0wGrz5bb0tV6+ydRjA4btLAMXvt/w1vyi6 C55Q== X-Gm-Message-State: AOAM531bvms4Rb4QqvHqdUuhmQuLfbojKZ79SVlz8YoV09djLOTTAdjF MGzsL0F2YBxVd2hQWYg+xElhCjj/2Wk= X-Google-Smtp-Source: ABdhPJwTY+IQxaU5nwU6g0IdCNIXOFizCBWrn9MC4+XZeqg7Oxgpah90kg2A8RLvHawVOH9jyA4iWQ== X-Received: by 2002:a1c:2b43:: with SMTP id r64mr279417wmr.105.1598855854401; Sun, 30 Aug 2020 23:37:34 -0700 (PDT) Received: from [192.168.178.27] ([62.3.64.16]) by smtp.gmail.com with ESMTPSA id 92sm11641245wra.19.2020.08.30.23.37.33 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 30 Aug 2020 23:37:33 -0700 (PDT) Content-Type: multipart/alternative; boundary=Apple-Mail-B31D059D-DA6D-4AF1-863F-F7FA4A30D067 Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (1.0) From: Stewart Bryant In-Reply-To: Date: Mon, 31 Aug 2020 07:37:31 +0100 Cc: Loa Andersson , Adrian Farrel , tom petch , Last Call , "draft-ietf-mpls-spl-terminology@ietf.org" , mpls , mpls-chairs , "BRUNGARD, DEBORAH A" Message-Id: <50A51422-EDA2-49FD-93A9-58351614E87B@gmail.com> References: To: Kireeti Kompella X-Mailer: iPad Mail (17G80) Archived-At: Subject: Re: [mpls] [Last-Call] Last Call: (Special Purpose Label terminology) to Informational RFC X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 Aug 2020 06:37:38 -0000 --Apple-Mail-B31D059D-DA6D-4AF1-863F-F7FA4A30D067 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Sent from my iPad > I don=E2=80=99t think we need three new drafts to deal with this, but we d= o need to deal with the issues raised.=20 >=20 >=20 Hi Kireeti Technically you are right, and of course this is the least work for the auth= ors, IESG and the RFC editor. The question is what is best for the reader? My preference is to separate the technical description of XL from the IANA r= elated work as I think it allows the implementer to focus on protocol, but I= accept that I may be I the rough. Stewart= --Apple-Mail-B31D059D-DA6D-4AF1-863F-F7FA4A30D067 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable

Sent from my iPad<= /div>

<= div dir=3D"ltr" data-ogsc=3D"" style=3D"">
I don=E2=80=99t think we need three new drafts to deal with= this, but we do need to deal with the issues raised. 


Hi Kireeti

Technically you are right, a= nd of course this is the least work for the authors, IESG and the RFC editor= . The question is what is best for the reader?

My p= reference is to separate the technical description of XL from the IANA relat= ed work as I think it allows the implementer to focus on protocol, but I acc= ept that I may be I the rough.

Stewart
= = --Apple-Mail-B31D059D-DA6D-4AF1-863F-F7FA4A30D067--