Re: [Idr] Review Updates to draft-ietf-idr-bgp-prefix-sid

Robert Raszuk <robert@raszuk.net> Thu, 15 February 2018 19:10 UTC

Return-Path: <rraszuk@gmail.com>
X-Original-To: idr@ietfa.amsl.com
Delivered-To: idr@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 6A2B2128896; Thu, 15 Feb 2018 11:10:21 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.698
X-Spam-Level:
X-Spam-Status: No, score=-1.698 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.199, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001, 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 gwwxd873jhMb; Thu, 15 Feb 2018 11:10:19 -0800 (PST)
Received: from mail-wr0-x244.google.com (mail-wr0-x244.google.com [IPv6:2a00:1450:400c:c0c::244]) (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 4EA39120227; Thu, 15 Feb 2018 11:10:18 -0800 (PST)
Received: by mail-wr0-x244.google.com with SMTP id s5so757820wra.0; Thu, 15 Feb 2018 11:10:18 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc; bh=B3OBDMehd7rTLCmDexc1TAyEaisAtHhtU1YdXsLMaJw=; b=STVZlevPQGqtDyPnG6eFjAuimY2gxI+3TnoN5z0/hMkLqewAHEjBupv3LVgTz/GgWg gWI5LeCpVyV0oWDBPYm3Jf/vMPRy/lNjGbIsDlAKBJEoM39q5obpoq4SMO2/hVDSpU41 4L4T37CS0HKp8thv+9M5+q17XuLBjBEYjzOW6NDRd07RdXaQGl1OxPH4LBpLSjvZqNCe MbRGAE3vvprX0jr+4Bkun87zCM79IKbeA2vttRay9EfIWkZ+KiSByNIATNLTENEgKfz2 lOCZkMGxoNzUTIDlm7KpzlYw1mEZzQ4k7+qy9YPyAjceRdM/iABORKTxHPawxlVnU+xn 0AYg==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:sender:in-reply-to:references:from :date:message-id:subject:to:cc; bh=B3OBDMehd7rTLCmDexc1TAyEaisAtHhtU1YdXsLMaJw=; b=hoRdsv8yeaN36R+ClAg+b7bmFweJs6S3S4brxLiw+6hLGGvIf8ubiF9iWw4CaFVUR6 V7Ob7QQ3kBUeGc9dnwbQrEx9iHCk0b6Q2oZyLu3x/xCDBus6Rj5ihoO8HtVaz9a3lGim 6syrQmB0VAo260hEG1CZ+o7gkULN/l7KLoHax803Vzt9ovdZP+ENAnofYqgwgC6b6o8L 11GL7E2SEWu0RjXAHDkHJVDVkASla657ZT49JPlwNz91b+Jktv0ys1nmqk2BK5cuFKJe R7yjAF9E1CvNnns7mOEM2OKo2Rtc+LsxK0sJSb1IC315jBTLjy3S5Ei5S5ai1erKtdEN I2WA==
X-Gm-Message-State: APf1xPAkoHK2FQpl/gAwxr1ctRhrkYX6oK3WFSOzU6y2hrRCRYM9y7EM doazQbDai2bgSGZx1ZwDI2U06w8SjX5UtgPe86A=
X-Google-Smtp-Source: AH8x224apuOiqMacpD9LygY6kLSG1uGqaCBz8/ogYEbTWsAzem9962/4B9K3UVmuX4eVLu8TTelc+jmZWt0BlfySHGo=
X-Received: by 10.223.151.207 with SMTP id t15mr3322379wrb.223.1518721816478; Thu, 15 Feb 2018 11:10:16 -0800 (PST)
MIME-Version: 1.0
Sender: rraszuk@gmail.com
Received: by 10.28.0.7 with HTTP; Thu, 15 Feb 2018 11:10:15 -0800 (PST)
In-Reply-To: <b6947d1a-8188-7512-8d29-62297cd8800a@juniper.net>
References: <CAMMESszyqjqm+m3J00GWG1Dw0OjYdo-GGXePxcWvyBp4sgtm6Q@mail.gmail.com> <b6947d1a-8188-7512-8d29-62297cd8800a@juniper.net>
From: Robert Raszuk <robert@raszuk.net>
Date: Thu, 15 Feb 2018 20:10:15 +0100
X-Google-Sender-Auth: 6N92OKkDbb3nYuraT9xlO2l1J04
Message-ID: <CA+b+ERnsa-JtwKfNsfvmtbxf2SyaJstCPNSWGKERrYsV=zZ9Eg@mail.gmail.com>
To: Eric C Rosen <erosen@juniper.net>
Cc: Alvaro Retana <aretana.ietf@gmail.com>, idr wg <idr@ietf.org>, idr-chairs@ietf.org, draft-ietf-idr-bgp-prefix-sid@ietf.org, Susan Hares <shares@ndzh.com>
Content-Type: multipart/alternative; boundary="94eb2c1b531e62478d056544fa4d"
Archived-At: <https://mailarchive.ietf.org/arch/msg/idr/OpQu0QK-KQ6rKH-zajs4DIlytWs>
Subject: Re: [Idr] Review Updates to draft-ietf-idr-bgp-prefix-sid
X-BeenThere: idr@ietf.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: Inter-Domain Routing <idr.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/idr>, <mailto:idr-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/idr/>
List-Post: <mailto:idr@ietf.org>
List-Help: <mailto:idr-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/idr>, <mailto:idr-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 15 Feb 2018 19:10:21 -0000

Hi Eric,

Isn't the fact that a value is defined in IANA registry sufficient ?

https://www.iana.org/assignments/mpls-label-values/mpls-label-values.xhtml

Do we have to quote all RFCs which define label values at each subsequent
work ?

Thx,
R.



On Thu, Feb 15, 2018 at 4:07 PM, Eric C Rosen <erosen@juniper.net> wrote:

> I note that the document still has the following text:
>
> "a BGP speaker receiving a prefix with a BGP Prefix-SID attribute and a
> label NLRI field of Implicit NULL"
>
> Am I the only one who doesn't know what the numeric value of "a label NLRI
> field of Implicit NULL" is?  There does not appear to be a definition of
> the numeric value of  "Implicit NULL" in RFC 8277, which is the only
> relevant item in the normative references.  Is a reference to RFC 3032
> Section 2.1 required?
>
>
>
> On 2/15/2018 8:37 AM, Alvaro Retana wrote:
>
> Dear idr WG:
>
> This draft has been through the WG and IESG process and it is waiting
> final approval for publication.
>
> During the process some changes have been made, some of them significant
> enough that I want to call out for your attention.  Please take a look at
> the latest version, specifically the updated text related to multiple
> prefixes/paths in sections 4.1 and 4.2.  For your convenience, I think that
> the diff between -14 and -16 provides the clearest view:
>
> https://www.ietf.org/rfcdiff?url1=draft-ietf-idr-bgp-
> prefix-sid-14&url2=draft-ietf-idr-bgp-prefix-sid-16
> <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ietf.org_rfcdiff-3Furl1-3Ddraft-2Dietf-2Didr-2Dbgp-2Dprefix-2Dsid-2D14-26url2-3Ddraft-2Dietf-2Didr-2Dbgp-2Dprefix-2Dsid-2D16&d=DwMFaQ&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=-DXB84eU9m4cIlq2OOcCJCQQAwJXQQswyu3F0kG0VNo&m=yF0495B-NVp5DIlASsUbsM45SPzz8uoC8OecJguM3vA&s=o2an32VlUxyFhi7bKueRpn-9Nnv_ixMZmg44gSvPndA&e=>
>
>
> I think the changes are fine and that they don’t require the document
> returning to the WG.  But I just want to give you the opportunity to look
> at them just in case.  If anyone has concerns, please reply to this
> message.  I plan on approving the document for publication by the end of
> next week (Feb/23).
>
> Thanks!
>
> Alvaro.
>
> On February 13, 2018 at 10:31:47 PM, internet-drafts@ietf.org (
> 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 Inter-Domain Routing WG of the IETF.
>
> Title : Segment Routing Prefix SID extensions for BGP
> Authors : Stefano Previdi
> Clarence Filsfils
> Acee Lindem
> Arjun Sreekantiah
> Hannes Gredler
> Filename : draft-ietf-idr-bgp-prefix-sid-16.txt
> Pages : 19
> Date : 2018-02-13
>
> Abstract:
> The Segment Routing (SR) architecture allows a node to steer a packet
> flow through any topological path and service chain by leveraging
> source routing. The ingress node prepends an SR header to a packet
> containing a set of segment identifiers (SID). Each SID represents a
> topological or a service-based instruction. Per-flow state is
> maintained only on the ingress node of the SR domain.
>
> This document defines an optional, transitive BGP attribute for
> announcing BGP Prefix Segment Identifiers (BGP Prefix-SID)
> information.
>
>
>
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-idr-bgp-prefix-sid/
> <https://urldefense.proofpoint.com/v2/url?u=https-3A__datatracker.ietf.org_doc_draft-2Dietf-2Didr-2Dbgp-2Dprefix-2Dsid_&d=DwMFaQ&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=-DXB84eU9m4cIlq2OOcCJCQQAwJXQQswyu3F0kG0VNo&m=yF0495B-NVp5DIlASsUbsM45SPzz8uoC8OecJguM3vA&s=N0tgIIQyJcbiz8sY8xJGqoiz9XY0NgyZ4b2MCWOxPHU&e=>
>
> There are also htmlized versions available at:
> https://tools.ietf.org/html/draft-ietf-idr-bgp-prefix-sid-16
> <https://urldefense.proofpoint.com/v2/url?u=https-3A__tools.ietf.org_html_draft-2Dietf-2Didr-2Dbgp-2Dprefix-2Dsid-2D16&d=DwMFaQ&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=-DXB84eU9m4cIlq2OOcCJCQQAwJXQQswyu3F0kG0VNo&m=yF0495B-NVp5DIlASsUbsM45SPzz8uoC8OecJguM3vA&s=wwl2a9XgSSGYQmBMLUyjioJyIjaResJU63tV8Lh0oPw&e=>
> https://datatracker.ietf.org/doc/html/draft-ietf-idr-bgp-prefix-sid-16
> <https://urldefense.proofpoint.com/v2/url?u=https-3A__datatracker.ietf.org_doc_html_draft-2Dietf-2Didr-2Dbgp-2Dprefix-2Dsid-2D16&d=DwMFaQ&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=-DXB84eU9m4cIlq2OOcCJCQQAwJXQQswyu3F0kG0VNo&m=yF0495B-NVp5DIlASsUbsM45SPzz8uoC8OecJguM3vA&s=_PKFP2HU-RTOgNjv3cQOhwYyuwh5P5aOJa6mVSQzeCo&e=>
>
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=draft-ietf-idr-bgp-prefix-sid-16
> <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ietf.org_rfcdiff-3Furl2-3Ddraft-2Dietf-2Didr-2Dbgp-2Dprefix-2Dsid-2D16&d=DwMFaQ&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=-DXB84eU9m4cIlq2OOcCJCQQAwJXQQswyu3F0kG0VNo&m=yF0495B-NVp5DIlASsUbsM45SPzz8uoC8OecJguM3vA&s=7Ss6_8lzJDl0U3F8b4M9edpF1XG9JtyoZsQT_UModj0&e=>
>
>
> 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
> <https://urldefense.proofpoint.com/v2/url?u=http-3A__tools.ietf.org&d=DwMFaQ&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=-DXB84eU9m4cIlq2OOcCJCQQAwJXQQswyu3F0kG0VNo&m=yF0495B-NVp5DIlASsUbsM45SPzz8uoC8OecJguM3vA&s=IsdTJ6aSeBNSSLkVINQYQNQkfE9P-u1y5XX5UWwn_Mc&e=>.
>
>
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
> <https://urldefense.proofpoint.com/v2/url?u=ftp-3A__ftp.ietf.org_internet-2Ddrafts_&d=DwMFaQ&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=-DXB84eU9m4cIlq2OOcCJCQQAwJXQQswyu3F0kG0VNo&m=yF0495B-NVp5DIlASsUbsM45SPzz8uoC8OecJguM3vA&s=nTLjy0PEOtD6YPTrGm-XSaWEAWSxs_Tt4Wy7Bj2QzUo&e=>
>
> _______________________________________________
> I-D-Announce mailing list
> I-D-Announce@ietf.org
> https://www.ietf.org/mailman/listinfo/i-d-announce
> <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ietf.org_mailman_listinfo_i-2Dd-2Dannounce&d=DwMFaQ&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=-DXB84eU9m4cIlq2OOcCJCQQAwJXQQswyu3F0kG0VNo&m=yF0495B-NVp5DIlASsUbsM45SPzz8uoC8OecJguM3vA&s=ov1NLTv8StMXZBSroef794vxZBfq-prK4hAHyagtjEA&e=>
> Internet-Draft directories: http://www.ietf.org/shadow.html
> <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.ietf.org_shadow.html&d=DwMFaQ&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=-DXB84eU9m4cIlq2OOcCJCQQAwJXQQswyu3F0kG0VNo&m=yF0495B-NVp5DIlASsUbsM45SPzz8uoC8OecJguM3vA&s=d7rR32qUs_sytae8S7msinAcVI7aDCB9yocrL2B8YkU&e=>
> or ftp://ftp.ietf.org/ietf/1shadow-sites.txt
> <https://urldefense.proofpoint.com/v2/url?u=ftp-3A__ftp.ietf.org_ietf_1shadow-2Dsites.txt&d=DwMFaQ&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=-DXB84eU9m4cIlq2OOcCJCQQAwJXQQswyu3F0kG0VNo&m=yF0495B-NVp5DIlASsUbsM45SPzz8uoC8OecJguM3vA&s=MRB2kIaIcnJ0jVfRmVl4puiURIx9GFD_qwYk4i48Pow&e=>
>
>
>
> _______________________________________________
> Idr mailing listIdr@ietf.orghttps://urldefense.proofpoint.com/v2/url?u=https-3A__www.ietf.org_mailman_listinfo_idr&d=DwICAg&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=-DXB84eU9m4cIlq2OOcCJCQQAwJXQQswyu3F0kG0VNo&m=yF0495B-NVp5DIlASsUbsM45SPzz8uoC8OecJguM3vA&s=BzTPrKQqOu71SaROHiK_7IeUpNHd2pDnQ11o3H5_ChE&e=
>
>
>
> _______________________________________________
> Idr mailing list
> Idr@ietf.org
> https://www.ietf.org/mailman/listinfo/idr
>
>