From nobody Thu May 8 13:52:49 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5B6311A014E for ; Thu, 8 May 2014 13:52:45 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.902 X-Spam-Level: X-Spam-Status: No, score=-1.902 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id H6QSVkgFb2-O for ; Thu, 8 May 2014 13:52:43 -0700 (PDT) Received: from na01-bn1-obe.outbound.protection.outlook.com (mail-bn1lp0144.outbound.protection.outlook.com [207.46.163.144]) by ietfa.amsl.com (Postfix) with ESMTP id 419331A0067 for ; Thu, 8 May 2014 13:52:43 -0700 (PDT) Received: from cbardenheuer-sslvpn-nc.jnpr.net (66.129.241.13) by BY2PR05MB725.namprd05.prod.outlook.com (10.141.223.13) with Microsoft SMTP Server (TLS) id 15.0.934.12; Thu, 8 May 2014 20:52:36 +0000 Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 (Mac OS X Mail 7.2 \(1874\)) From: "John G. Scudder" In-Reply-To: <201404240124.s3O1ONV71141@magenta.juniper.net> Date: Thu, 8 May 2014 16:52:23 -0400 Content-Transfer-Encoding: quoted-printable Message-ID: <7005B759-24F8-454C-AFC5-654B68C2E46E@juniper.net> References: <201404240124.s3O1ONV71141@magenta.juniper.net> To: Yakov Rekhter X-Mailer: Apple Mail (2.1874) X-Originating-IP: [66.129.241.13] X-ClientProxiedBy: BLUPR07CA024.namprd07.prod.outlook.com (10.255.223.177) To BY2PR05MB725.namprd05.prod.outlook.com (10.141.223.13) X-Forefront-PRVS: 0205EDCD76 X-Forefront-Antispam-Report: SFV:NSPM; SFS:(10009001)(6009001)(428001)(377454003)(51704005)(189002)(199002)(24454002)(164054003)(74662001)(76482001)(33656001)(57306001)(74502001)(4396001)(31966008)(46102001)(42186004)(21056001)(62966002)(50226001)(101416001)(89996001)(53416003)(97756001)(1941001)(82746002)(77982001)(86362001)(93916002)(50466002)(23726002)(85852003)(83072002)(92726001)(81542001)(87286001)(92566001)(2009001)(83716003)(77156001)(46406003)(36756003)(88136002)(87976001)(81156002)(81342001)(69596002)(19580395003)(20776003)(47776003)(64706001)(19580405001)(83322001)(80022001)(99396002)(50986999)(79102001)(76176999)(66066001)(42262001); DIR:OUT; SFP:1101; SCL:1; SRVR:BY2PR05MB725; H:cbardenheuer-sslvpn-nc.jnpr.net; FPR:; MLV:sfv; PTR:InfoNoRecords; MX:1; A:1; LANG:en; Received-SPF: None (: juniper.net does not designate permitted sender hosts) Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=jgs@juniper.net; X-OriginatorOrg: juniper.net Archived-At: http://mailarchive.ietf.org/arch/msg/spring/C-8yoMOWPor30Kt_xPwXKbnOUFw Cc: Alvaro Retana , spring@ietf.org Subject: Re: [spring] use case vs requirements X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 08 May 2014 20:52:45 -0000 Yakov, On Apr 23, 2014, at 9:24 PM, Yakov Rekhter wrote: > I am still waiting for your response to the e-mail I sent you (see = below). ... > The SPRING WG charter asks for "One or more documents describing > SPRING use cases". >=20 > Give that, could you, as the SPRING WG co-chairs, comment on whether > the SPRING use cases document(s) should cover just the use cases, or > should also include the SPRING architecture requirements. The short answer is that it seems to the chairs that the proposed use = cases documents are acceptable within the charter.=20 There are a few reasons for this, and they include the fact that the use = cases are presumably there to drive architectural requirements anyway = (we are not doing them just for fun) and the fact that the WG charter = does not have a separate architectural requirements milestone, but it = does have some architecture milestones, so presumably we were going to = have to discuss requirements at some point. Thanks, --John and Alvaro From nobody Fri May 9 09:39:08 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 158B01A02E5 for ; Fri, 9 May 2014 09:39:05 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.601 X-Spam-Level: X-Spam-Status: No, score=-2.601 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id NoogfIXzX1Qw for ; Fri, 9 May 2014 09:38:59 -0700 (PDT) Received: from na01-by2-obe.outbound.protection.outlook.com (mail-by2lp0240.outbound.protection.outlook.com [207.46.163.240]) by ietfa.amsl.com (Postfix) with ESMTP id 8CC6D1A02E1 for ; Fri, 9 May 2014 09:38:59 -0700 (PDT) Received: from cbardenheuer-sslvpn-nc.jnpr.net (66.129.241.13) by BY2PR05MB725.namprd05.prod.outlook.com (10.141.223.13) with Microsoft SMTP Server (TLS) id 15.0.934.12; Fri, 9 May 2014 16:38:53 +0000 From: "John G. Scudder" Content-Type: multipart/alternative; boundary="Apple-Mail=_3E7339F5-47FD-4CB5-B5DF-BC875144A564" Message-ID: <1056B93B-BC67-48A3-B38D-172AB95C1B82@juniper.net> Date: Fri, 9 May 2014 12:38:45 -0400 To: MIME-Version: 1.0 (Mac OS X Mail 7.2 \(1874\)) X-Mailer: Apple Mail (2.1874) X-Originating-IP: [66.129.241.13] X-ClientProxiedBy: BLUPR03CA032.namprd03.prod.outlook.com (10.141.30.25) To BY2PR05MB725.namprd05.prod.outlook.com (10.141.223.13) X-Forefront-PRVS: 02065A9E77 X-Forefront-Antispam-Report: SFV:NSPM; SFS:(10009001)(6009001)(428001)(164054003)(189002)(199002)(83716003)(92566001)(84326002)(87286001)(77156001)(88136002)(2009001)(81542001)(83072002)(85852003)(92726001)(36756003)(79102001)(83322001)(80022001)(66066001)(87976001)(50986999)(64706001)(20776003)(81342001)(69596002)(81156002)(46102001)(31966008)(82746002)(42186004)(74662001)(76482001)(74502001)(33656001)(512954002)(4396001)(86362001)(71186001)(77982001)(21056001)(100916002)(93916002)(89996001)(62966002)(101416001)(50226001)(53416003)(42262001); DIR:OUT; SFP:1101; SCL:1; SRVR:BY2PR05MB725; H:cbardenheuer-sslvpn-nc.jnpr.net; FPR:; MLV:sfv; PTR:InfoNoRecords; MX:1; A:1; LANG:en; Received-SPF: None (: juniper.net does not designate permitted sender hosts) Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=jgs@juniper.net; X-OriginatorOrg: juniper.net Archived-At: http://mailarchive.ietf.org/arch/msg/spring/oXg_q8hQRC5Y9d8HEA7VnM4oMaA Subject: [spring] use case documents adopted X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 09 May 2014 16:39:05 -0000 --Apple-Mail=_3E7339F5-47FD-4CB5-B5DF-BC875144A564 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="us-ascii" Folks, We will adopt all three use case documents as WG items. There was "rough = consensus" for adoption and ample scope for revision once they are = published as WG documents: - draft-previdi-spring-problem-statement - draft-martin-spring-segment-routing-ipv6-use-cases - draft-francois-spring-resiliency-use-case Authors, please resubmit the documents as = draft-ietf-spring-problem-statement, draft-ietf-spring-ipv6-use-cases, = and draft-spring-resiliency-use-cases, respectively. WG members, please provide specific suggestions for changes to these = working group documents. We would like to get through the editing and = revision process as fast as we reasonably can (though not faster :-). Onward! Thanks, --John and Alvaro= --Apple-Mail=_3E7339F5-47FD-4CB5-B5DF-BC875144A564 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="us-ascii"
Folks,

We will adopt all three = use case documents as WG items. There was "rough consensus" for adoption = and ample scope for revision once they are published as WG = documents:

- draft-previdi-spring-problem-statement
- draft-martin-spring-segment-routing-ipv6-use-cases
- = draft-francois-spring-resiliency-use-case

Authors, please = resubmit the documents as draft-ietf-spring-problem-statement, = draft-ietf-spring-ipv6-use-cases, and draft-spring-resiliency-use-cases, = respectively.

WG members, please provide specific = suggestions for changes to these working group documents. We would like = to get through the editing and revision process as fast as we reasonably = can (though not faster :-).

Onward!

Thanks,

--John and Alvaro
= --Apple-Mail=_3E7339F5-47FD-4CB5-B5DF-BC875144A564-- From nobody Tue May 13 09:33:22 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 454ED1A012F; Tue, 13 May 2014 09:33:21 -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] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id QIf44gggzbLm; Tue, 13 May 2014 09:33:20 -0700 (PDT) Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 152B71A0117; Tue, 13 May 2014 09:33:20 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: i-d-announce@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 5.4.2.p2 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <20140513163320.13803.67256.idtracker@ietfa.amsl.com> Date: Tue, 13 May 2014 09:33:20 -0700 Archived-At: http://mailarchive.ietf.org/arch/msg/spring/9krYdHbf6n20E1bfOore0bkAnS8 Cc: spring@ietf.org Subject: [spring] I-D Action: draft-ietf-spring-problem-statement-00.txt X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 13 May 2014 16:33:21 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Source Packet Routing in Networking Working Group of the IETF. Title : SPRING Problem Statement and Requirements Authors : Stefano Previdi Clarence Filsfils Bruno Decraene Stephane Litkowski Martin Horneffer Ruediger Geib Rob Shakir Robert Raszuk Filename : draft-ietf-spring-problem-statement-00.txt Pages : 18 Date : 2014-05-13 Abstract: The ability for a node to specify a forwarding path, other than the normal shortest path, that a particular packet will traverse, benefits a number of network functions. Source-based routing mechanisms have previously been specified for network protocols, but have not seen widespread adoption. In this context, the term 'source' means 'the point at which the explicit route is imposed'. This document outlines various use cases, with their requirements, that need to be taken into account by the Source Packet Routing in Networking (SPRING) architecture for unicast traffic. Multicast use- cases and requirements are out of scope of this document. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-spring-problem-statement/ There's also a htmlized version available at: http://tools.ietf.org/html/draft-ietf-spring-problem-statement-00 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 May 13 09:35:34 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id CB77E1A0131; Tue, 13 May 2014 09:35:29 -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] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Mxq7T6HDO2Of; Tue, 13 May 2014 09:35:28 -0700 (PDT) Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 476C01A0115; Tue, 13 May 2014 09:35:28 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: i-d-announce@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 5.4.2.p2 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <20140513163528.15975.8536.idtracker@ietfa.amsl.com> Date: Tue, 13 May 2014 09:35:28 -0700 Archived-At: http://mailarchive.ietf.org/arch/msg/spring/I_iIfnCvpG_TPYI3Z20_HmoTUDM Cc: spring@ietf.org Subject: [spring] I-D Action: draft-ietf-spring-resiliency-use-cases-00.txt X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 13 May 2014 16:35:30 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Source Packet Routing in Networking Working Group of the IETF. Title : Use-cases for Resiliency in SPRING Authors : Pierre Francois Clarence Filsfils Bruno Decraene Rob Shakir Filename : draft-ietf-spring-resiliency-use-cases-00.txt Pages : 8 Date : 2014-05-12 Abstract: This document describes the use cases for resiliency in SPRING networks. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-spring-resiliency-use-cases/ There's also a htmlized version available at: http://tools.ietf.org/html/draft-ietf-spring-resiliency-use-cases-00 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 May 13 09:36:55 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 362571A0144; Tue, 13 May 2014 09:36:44 -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] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id uiITKRlx9vcF; Tue, 13 May 2014 09:36:38 -0700 (PDT) Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id E120A1A0139; Tue, 13 May 2014 09:36:38 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: i-d-announce@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 5.4.2.p2 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <20140513163638.25874.82260.idtracker@ietfa.amsl.com> Date: Tue, 13 May 2014 09:36:38 -0700 Archived-At: http://mailarchive.ietf.org/arch/msg/spring/HWU0_XB3Hm726e_g5n1bXMxC-A8 Cc: spring@ietf.org Subject: [spring] I-D Action: draft-ietf-spring-ipv6-use-cases-00.txt X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 13 May 2014 16:36:44 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Source Packet Routing in Networking Working Group of the IETF. Title : IPv6 SPRING Use Cases Authors : John Brzozowski John Leddy Ida Leung Stefano Previdi Mark Townsley Christian Martin Clarence Filsfils Roberta Maglione Filename : draft-ietf-spring-ipv6-use-cases-00.txt Pages : 12 Date : 2014-05-09 Abstract: Source Packet Routing in Networking (SPRING) architecture leverages the source routing paradigm. A node steers a packet through a controlled set of instructions, called segments, by prepending the packet with SPRING header. A segment can represent any instruction, topological or service-based. A segment can have a local semantic to the SPRING node or global within the SPRING domain. SPRING allows to enforce a flow through any topological path and service chain while maintaining per-flow state only at the ingress node to the SPRING domain. The objective of this document is to illustrate some use cases that need to be taken into account by the Source Packet Routing in Networking (SPRING) architecture. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-spring-ipv6-use-cases/ There's also a htmlized version available at: http://tools.ietf.org/html/draft-ietf-spring-ipv6-use-cases-00 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 May 14 20:46:41 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E81551A0213; Wed, 14 May 2014 20:46:36 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.852 X-Spam-Level: X-Spam-Status: No, score=-4.852 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RP_MATCHES_RCVD=-0.651, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ND1cvAQF1TRD; Wed, 14 May 2014 20:46:34 -0700 (PDT) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 27EBA1A01E8; Wed, 14 May 2014 20:46:33 -0700 (PDT) Received: from 172.18.7.190 (EHLO lhreml203-edg.china.huawei.com) ([172.18.7.190]) by lhrrg01-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id BGU09750; Thu, 15 May 2014 03:46:25 +0000 (GMT) Received: from LHREML404-HUB.china.huawei.com (10.201.5.218) by lhreml203-edg.huawei.com (172.18.7.221) with Microsoft SMTP Server (TLS) id 14.3.158.1; Thu, 15 May 2014 04:45:25 +0100 Received: from nkgeml405-hub.china.huawei.com (10.98.56.36) by lhreml404-hub.china.huawei.com (10.201.5.218) with Microsoft SMTP Server (TLS) id 14.3.158.1; Thu, 15 May 2014 04:46:24 +0100 Received: from NKGEML512-MBS.china.huawei.com ([169.254.8.115]) by nkgeml405-hub.china.huawei.com ([10.98.56.36]) with mapi id 14.03.0158.001; Thu, 15 May 2014 11:46:13 +0800 From: Xuxiaohu To: Linda Dunbar , "Black, David" , "tsvwg@ietf.org" , "tsv-area@ietf.org" Thread-Topic: [sfc] Fragmentation and Path MTU text in nvo3 dataplane reqts draft Thread-Index: Ac9vtnHd0ZAyZrcySACl53YRIUspEwACH6cQAAisYSA= Date: Thu, 15 May 2014 03:46:13 +0000 Message-ID: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE082721AF@NKGEML512-MBS.china.huawei.com> References: <8D3D17ACE214DC429325B2B98F3AE712076C55B7B1@MX15A.corp.emc.com> <4A95BA014132FF49AE685FAB4B9F17F645D09D6D@dfweml701-chm.china.huawei.com> In-Reply-To: <4A95BA014132FF49AE685FAB4B9F17F645D09D6D@dfweml701-chm.china.huawei.com> Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.111.98.134] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-CFilter-Loop: Reflected Archived-At: http://mailarchive.ietf.org/arch/msg/spring/cxIt0jOpabH2mz7oYc_-4PTUlD4 Cc: "spring@ietf.org" , "sfc@ietf.org" Subject: Re: [spring] [sfc] Fragmentation and Path MTU text in nvo3 dataplane reqts draft X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." 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PRVPEXHUB01.corp.twcable.com ([10.136.163.10]) with mapi; Fri, 16 May 2014 08:28:04 -0400 From: "George, Wes" To: "spring@ietf.org" Date: Fri, 16 May 2014 08:28:06 -0400 Thread-Topic: [spring] I-D Action: draft-ietf-spring-ipv6-use-cases-00.txt Thread-Index: Ac9xAkjUSOnhz6JPRDGn/zRb6dqnIQ== Message-ID: References: <20140513163638.25874.82260.idtracker@ietfa.amsl.com> In-Reply-To: <20140513163638.25874.82260.idtracker@ietfa.amsl.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/14.4.1.140326 acceptlanguage: en-US Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: http://mailarchive.ietf.org/arch/msg/spring/ruALsjBHWJEwxfGMXL1NDhEd8zE Subject: Re: [spring] I-D Action: draft-ietf-spring-ipv6-use-cases-00.txt X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." 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Fri, 16 May 2014 17:38:44 +0000 Received: from P-EMF03-SAC.jnpr.net (66.129.239.17) by BN1AFFO11FD056.mail.protection.outlook.com (10.58.53.71) with Microsoft SMTP Server (TLS) id 15.0.939.9 via Frontend Transport; Fri, 16 May 2014 17:38:43 +0000 Received: from magenta.juniper.net (172.17.27.123) by P-EMF03-SAC.jnpr.net (172.24.192.21) with Microsoft SMTP Server (TLS) id 14.3.146.0; Fri, 16 May 2014 10:37:50 -0700 Received: from juniper.net (sapphire.juniper.net [172.17.28.108]) by magenta.juniper.net (8.11.3/8.11.3) with ESMTP id s4GHbmL60524; Fri, 16 May 2014 10:37:48 -0700 (PDT) (envelope-from yakov@juniper.net) Message-ID: <201405161737.s4GHbmL60524@magenta.juniper.net> To: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <82365.1400261867.1@juniper.net> Date: Fri, 16 May 2014 10:37:47 -0700 From: Yakov Rekhter X-EOPAttributedMessage: 0 X-Forefront-Antispam-Report: CIP:66.129.239.17; CTRY:US; IPV:NLI; IPV:NLI; EFV:NLI; SFV:NSPM; SFS:(6009001)(377424004)(199002)(189002)(85852003)(79102001)(92726001)(20776003)(64706001)(21056001)(6806004)(97756001)(15202345003)(97736001)(4396001)(87936001)(81156002)(23726002)(1941001)(80022001)(83322001)(15975445006)(16796002)(44976005)(68736004)(102836001)(19580405001)(74502001)(19580395003)(76482001)(69596002)(84676001)(54356999)(50466002)(46406003)(77096999)(86362001)(77982001)(46102001)(50986999)(99396002)(81542001)(81342001); DIR:OUT; SFP:; SCL:1; SRVR:BL2PR05MB100; H:P-EMF03-SAC.jnpr.net; FPR:; MLV:sfv; PTR:InfoDomainNonexistent; A:1; MX:1; LANG:en; X-Forefront-PRVS: 02135EB356 Received-SPF: SoftFail (: domain of transitioning juniper.net discourages use of 66.129.239.17 as permitted sender) Authentication-Results: spf=softfail (sender IP is 66.129.239.17) smtp.mailfrom=yakov@juniper.net; X-OriginatorOrg: juniper.net Archived-At: http://mailarchive.ietf.org/arch/msg/spring/GZnreQC04uDnqNCWDZ_WTH9hY5w Cc: spring@ietf.org Subject: [spring] draft-gredler-spring-mpls-05.txt as SPRING WG document X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 16 May 2014 17:38:56 -0000 Alvaro and John, The authors of draft-gredler-spring-mpls-05.txt would like to ask SPRING WG to accept this draft as SPRING WG document. Yakov. ------- Forwarded Message Date: Fri, 16 May 2014 10:33:51 -0700 From: To: Subject: I-D Action: draft-gredler-spring-mpls-05.txt A New Internet-Draft is available from the on-line Internet-Drafts directories. Title : Supporting Source/Explicitly Routed Tunnels via Stack ed LSPs Authors : Hannes Gredler Yakov Rekhter Luay Jalil Sriganesh Kini Xiaohu Xu Filename : draft-gredler-spring-mpls-05.txt Pages : 17 Date : 2014-05-16 Abstract: This document describes how source/explicitly routed tunnels could be realized using stacked Label Switched Paths (LSPs). This document also describes how use of IS-IS/OSPF as a label distribution protocol fits into the MPLS architecture. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-gredler-spring-mpls/ There's also a htmlized version available at: http://tools.ietf.org/html/draft-gredler-spring-mpls-05 A diff from the previous version is available at: http://www.ietf.org/rfcdiff?url2=draft-gredler-spring-mpls-05 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/ _______________________________________________ I-D-Announce mailing list I-D-Announce@ietf.org https://www.ietf.org/mailman/listinfo/i-d-announce Internet-Draft directories: http://www.ietf.org/shadow.html or ftp://ftp.ietf.org/ietf/1shadow-sites.txt ------- End of Forwarded Message From nobody Fri May 16 11:28:44 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 3C57E1A02A5 for ; Fri, 16 May 2014 11:21:49 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.278 X-Spam-Level: X-Spam-Status: No, score=-1.278 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, FM_FORGED_GMAIL=0.622, FREEMAIL_FROM=0.001, SPF_PASS=-0.001] autolearn=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 6xQoGBmsL5Cx for ; Fri, 16 May 2014 11:21:47 -0700 (PDT) Received: from mail-ig0-x229.google.com (mail-ig0-x229.google.com [IPv6:2607:f8b0:4001:c05::229]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 94C1E1A031B for ; Fri, 16 May 2014 11:21:46 -0700 (PDT) Received: by mail-ig0-f169.google.com with SMTP id hl10so1966266igb.4 for ; Fri, 16 May 2014 11:21:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=RNPSdbj8H0YSdFBt3+C9U4vyq4MfP9UzG5knvWAtPII=; b=hPd0f8WcA1GgkA0+qTdOBIHc5AKEf2IZPpEPj4BpGFqdm/5sEXubTU46uBtEf2r7ey ZqNPxGvvR0No0fazYWB+I+bE6M8DD0NS4NeXHN0pVR1xZitDd/Q56f9QGHDch9upnD8i QSUMYjxQ1mwaoTrcthjVL6ne9RSVEbk27nvvINQA1Eovw31bDk1nSWb2ItIWA8b5clrM 4xcfUDZqbyGHOMTJPvoW/9AaqK03UHxF4iJ+c+KtXZBkYwj2tLXYAb+mWpD0ai1hbsor znMmyAVPyOHaXHe6Rg7Z1mykF49YWD3e5mmfISOuoygSTmQdnusKhBShUTy585PrXrno pDEA== MIME-Version: 1.0 X-Received: by 10.42.52.199 with SMTP id k7mr18091425icg.4.1400264498932; Fri, 16 May 2014 11:21:38 -0700 (PDT) Sender: rraszuk@gmail.com Received: by 10.64.242.198 with HTTP; Fri, 16 May 2014 11:21:38 -0700 (PDT) In-Reply-To: <201405161737.s4GHbmL60524@magenta.juniper.net> References: <201405161737.s4GHbmL60524@magenta.juniper.net> Date: Fri, 16 May 2014 20:21:38 +0200 X-Google-Sender-Auth: tey5UdT7mZak02PRRFG_nInwMyY Message-ID: From: Robert Raszuk To: Yakov Rekhter Content-Type: text/plain; charset=UTF-8 Archived-At: http://mailarchive.ietf.org/arch/msg/spring/_jf1LSYbUMi3QMSEFmJ4OdH0Q08 Cc: "Alvaro Retana \(aretana\)" , "spring@ietf.org" , "John G. Scudder" Subject: Re: [spring] draft-gredler-spring-mpls-05.txt as SPRING WG document X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 16 May 2014 18:21:49 -0000 Hi, Two comments on this document. Question: Assume there is label binding received for a given FEC from/by multiple protocols. Which one should be chosen by the LSR to be used in data plane? Choosing wrong one may jeoparadise the hope of stitching. Is consistent manual configuration across multiple LSRs an answer ? If so document should mention that. Otherwise analogy of admin distance for FECs should be proposed. Example: Is FEC distributed by OSPF more important then FEC distributed by targetted LDP session in the same OSPF domain ? On the other hand if this case is considered an error a corresponding error handling section may be required. Recommendation: s/distirbution/distribution/ Best regards, R. On Fri, May 16, 2014 at 7:37 PM, Yakov Rekhter wrote: > Alvaro and John, > > The authors of draft-gredler-spring-mpls-05.txt would like > to ask SPRING WG to accept this draft as SPRING WG document. > > Yakov. > ------- Forwarded Message > > Date: Fri, 16 May 2014 10:33:51 -0700 > From: > To: > Subject: I-D Action: draft-gredler-spring-mpls-05.txt > > > A New Internet-Draft is available from the on-line Internet-Drafts directories. > > > Title : Supporting Source/Explicitly Routed Tunnels via Stack > ed LSPs > Authors : Hannes Gredler > Yakov Rekhter > Luay Jalil > Sriganesh Kini > Xiaohu Xu > Filename : draft-gredler-spring-mpls-05.txt > Pages : 17 > Date : 2014-05-16 > > Abstract: > This document describes how source/explicitly routed tunnels could be > realized using stacked Label Switched Paths (LSPs). > > This document also describes how use of IS-IS/OSPF as a label > distribution protocol fits into the MPLS architecture. > > > The IETF datatracker status page for this draft is: > https://datatracker.ietf.org/doc/draft-gredler-spring-mpls/ > > There's also a htmlized version available at: > http://tools.ietf.org/html/draft-gredler-spring-mpls-05 > > A diff from the previous version is available at: > http://www.ietf.org/rfcdiff?url2=draft-gredler-spring-mpls-05 > > > 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/ > > _______________________________________________ > I-D-Announce mailing list > I-D-Announce@ietf.org > https://www.ietf.org/mailman/listinfo/i-d-announce > Internet-Draft directories: http://www.ietf.org/shadow.html > or ftp://ftp.ietf.org/ietf/1shadow-sites.txt > > ------- End of Forwarded Message > > _______________________________________________ > spring mailing list > spring@ietf.org > https://www.ietf.org/mailman/listinfo/spring From nobody Fri May 16 17:35:35 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 03EFD1A01D7 for ; 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Fri, 16 May 2014 19:35:24 -0500 From: "Roberta Maglione (robmgl)" To: "George, Wes" , "spring@ietf.org" Thread-Topic: [spring] I-D Action: draft-ietf-spring-ipv6-use-cases-00.txt Thread-Index: AQHPbsmc3PS/0KYAF0q3EQSHr5cJs5tDetIAgAB13kA= Date: Sat, 17 May 2014 00:35:23 +0000 Message-ID: <57C3345230A4F94C9B2F5CFA05D7F2BD1E587ED3@xmb-rcd-x01.cisco.com> References: <20140513163638.25874.82260.idtracker@ietfa.amsl.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.21.64.29] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: http://mailarchive.ietf.org/arch/msg/spring/ns6JyM0NAMXOyzXXHS8uWWwOJ4g Subject: Re: [spring] I-D Action: draft-ietf-spring-ipv6-use-cases-00.txt X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 17 May 2014 00:35:34 -0000 SGVsbG8gV2VzLA0KVGhhbmtzIGZvciByZXZpZXdpbmcgdGhlIGRyYWZ0IGFuZCBwcm92aWRpbmcg ZmVlZGJhY2suDQpZb3UgcmFpc2VkIGEgZ29vZCBwb2ludDogcnVubmluZyBNUExTIGluIElQdjYt b25seSBuZXR3b3JrcyBoYXMgc29tZSBjaGFsbGVuZ2VzIHRvZGF5IGJlY2F1c2Ugb2YgdGhlIGdh cHMgaGlnaGxpZ2h0ZWQgaW4gdGhlIE1QTFMgYW5hbHlzaXMgZG9jdW1lbnQuIFRoaXMgY291bGQg ZGVmaW5pdGVseSBiZWNvbWUgYW4gYWRkaXRpb25hbCBkcml2ZXIvbW90aXZhdGlvbiBmb3IgZGVw bG95aW5nIElQdjYgU1IuICAgDQoNCkkgYWxzbyBhZ3JlZSBvbiB5b3VyIHNlY29uZCBwb2ludDog YmVpbmcgYWJsZSB0byBzaW1wbHkgcHJvdmlzaW9uIGRpc2pvaW50IHBhdGhzIGluIElQdjYtb25s eSBuZXR3b3JrcyBpcyBhbiBpbXBvcnRhbnQgdXNlIGNhc2UgZm9yIElQdjYgU1IuDQoNCldlIGFy ZSBnb2luZyB0byBpbmNvcnBvcmF0ZSB5b3VyIHN1Z2dlc3Rpb25zIGluIHRoZSBuZXh0IHJldmlz aW9uIG9mIHRoZSBkb2N1bWVudC4NClRoYW5rcw0KQmVzdCBSZWdhcmRzDQpSb2JlcnRhICANCg0K LS0tLS1PcmlnaW5hbCBNZXNzYWdlLS0tLS0NCkZyb206IHNwcmluZyBbbWFpbHRvOnNwcmluZy1i b3VuY2VzQGlldGYub3JnXSBPbiBCZWhhbGYgT2YgR2VvcmdlLCBXZXMNClNlbnQ6IEZyaWRheSwg TWF5IDE2LCAyMDE0IDg6MjggQU0NClRvOiBzcHJpbmdAaWV0Zi5vcmcNClN1YmplY3Q6IFJlOiBb c3ByaW5nXSBJLUQgQWN0aW9uOiBkcmFmdC1pZXRmLXNwcmluZy1pcHY2LXVzZS1jYXNlcy0wMC50 eHQNCg0KSXQgbWF5IGJlIGEgZ29vZCBpZGVhIHRvIGFkZCBzb21lIG1lbnRpb24gb2YgdGhlIGZh Y3QgdGhhdCBhdCBsZWFzdCBjdXJyZW50bHksIElQdjYtb25seSBuZXR3b3JrcyBjYW5ub3QgZnVs bHkgc3VwcG9ydCBNUExTLiBXaGlsZSAgdGhlIGRyYWZ0IHByZXNlbnRzIHRoZSBsYWNrIG9mIE1Q TFMgYXMgYSBwb3RlbnRpYWwgaGFyZHdhcmUgbGltaXRhdGlvbiBvciBkZXNpZ24gY2hvaWNlIHRv IGF2b2lkIE1QTFMgb24gbmV0d29ya3Mgd2hlcmUgaXQgaXMgbm90IGFscmVhZHkgcHJlc2VudCwg dGhlcmUgYXJlIHNvbWUgYWRkaXRpb25hbCByZWFzb25zIHRoYXQgSSB0aGluayBhcmUgd29ydGgg ZGlzY3Vzc2luZy4gVGhlIG9wZXJhdG9yIGNvdWxkIGhhdmUgbWFkZSB0aGUgZGVzaWduIGNob2lj ZSB0byBkaXNhYmxlIElQdjQgb24gdGhlaXIgbmV0d29yayBmb3IgZWFzZSBvZiBtYW5hZ2VtZW50 IGFuZCBzY2FsZSAocmV0dXJuIHRvIHNpbmdsZS1zdGFjaykgb3IgZHVlIHRvIGFuIGFkZHJlc3Mg Y29uc3RyYWludCwgd2hlcmUgdGhlIG9wZXJhdG9yIGRvZXMgbm90IHBvc3Nlc3MgZW5vdWdoIElQ djQgYWRkcmVzcyByZXNvdXJjZXMgdG8gcHJvdmlkZSBJUHY0IGFkZHJlc3NpbmcgdG8gdGhlIGVu ZHBvaW50cyBhbmQgb3RoZXIgbmV0d29yayBlbGVtZW50cyBvbiB3aGljaCB0aGV5IGRlc2lyZSB0 byBydW4gTVBMUywgYW5kIHRoZXJlZm9yZSB3b3VsZCByZXF1aXJlIE1QTFMgdG8gc3VwcG9ydCBv cGVyYXRpb24gb24gYW4gSVB2Ni1vbmx5IG5ldHdvcmsuIFRoZXJlIGlzIHdvcmsgb25nb2luZyBp biB0aGUgTVBMUyBXRyBbZHJhZnQtaWV0Zi1tcGxzLWlwdjYtb25seS1nYXBdIHRvIGNhdGFsb2cg dGhlIGlzc3VlcyB0aGF0IG11c3QgYmUgYWRkcmVzc2VkIGJlZm9yZSBJUHY2LW9ubHkgTVBMUyBp cyBmdWxseSBzdXBwb3J0ZWQsIGJ1dCBzaW5jZSB0aGF0IGlzIG9ubHkgaW4gdGhlIGdhcC1hbmFs eXNpcyBwaGFzZSwgaXQgd2lsbCBiZSBzb21lIHRpbWUgYmVmb3JlIElQdjYtb25seSBNUExTIGlz IGEgcmVhbGl0eSwgc28gaW4gc29tZSB3YXlzLCBJIHNlZSBTUFJJTkcgb3Zlcg0KSVB2NiBhcyBh IHdheSB0byBsZWFwZnJvZyB0aGlzIHdvcmsuDQoNCkZ1cnRoZXIsIGl0IGlzIHdvcnRoIGhpZ2hs aWdodGluZyB0aGF0IGluIGEgZHVhbC1zdGFjayBNUExTLWVuYWJsZWQgbmV0d29yaywgYnkgZGVm YXVsdCBJUHY2IHRyYWZmaWMgaXMgbmF0aXZlbHkgcm91dGVkLCBub3QgbGFiZWwtc3dpdGNoZWQs IGFuZCBpbiBvcmRlciB0byB1c2UgTVBMUyBmZWF0dXJlcyBzdWNoIGFzIFJTUFYtVEUgb24gSVB2 NiB0cmFmZmljIGZsb3dzLCB0aGUgdHJhZmZpYyBtdXN0IGVpdGhlciBiZSBlbmNhcHN1bGF0ZWQg aW4gYSBWUE4gKDZWUEUpIG9yIGZvcmNlZCB0byB1c2UgdGhlIE1QTFMgZGF0YSBwbGFuZSAoNlBF KS4gVGh1cyBzZWdtZW50IHJvdXRpbmcgdmlhIE1QTFMgaXMgbm90IGEgY29tcGxldGUgc29sdXRp b24gZm9yIElQdjYgdHJhZmZpYyBmbG93cyBieSBkZWZhdWx0Lg0KDQpBbm90aGVyIHN1Z2dlc3Rp b24gZm9yIHNlY3Rpb24gMi41IC0gcHJvdmlzaW9uaW5nIG9mIGd1YXJhbnRlZWQgZGlzam9pbnQg cGF0aHMgZm9yIGRpdmVyc2l0eS4NCg0KDQpUaGFua3MsDQoNCldlcyBHZW9yZ2UNCg0KDQpBbnl0 aGluZyBiZWxvdyB0aGlzIGxpbmUgaGFzIGJlZW4gYWRkZWQgYnkgbXkgY29tcGFueeKAmXMgbWFp bCBzZXJ2ZXIsIEkgaGF2ZSBubyBjb250cm9sIG92ZXIgaXQuDQotLS0tLS0tLS0tLQ0KDQoNClRo aXMgRS1tYWlsIGFuZCBhbnkgb2YgaXRzIGF0dGFjaG1lbnRzIG1heSBjb250YWluIFRpbWUgV2Fy bmVyIENhYmxlIHByb3ByaWV0YXJ5IGluZm9ybWF0aW9uLCB3aGljaCBpcyBwcml2aWxlZ2VkLCBj b25maWRlbnRpYWwsIG9yIHN1YmplY3QgdG8gY29weXJpZ2h0IGJlbG9uZ2luZyB0byBUaW1lIFdh cm5lciBDYWJsZS4gVGhpcyBFLW1haWwgaXMgaW50ZW5kZWQgc29sZWx5IGZvciB0aGUgdXNlIG9m IHRoZSBpbmRpdmlkdWFsIG9yIGVudGl0eSB0byB3aGljaCBpdCBpcyBhZGRyZXNzZWQuIElmIHlv dSBhcmUgbm90IHRoZSBpbnRlbmRlZCByZWNpcGllbnQgb2YgdGhpcyBFLW1haWwsIHlvdSBhcmUg aGVyZWJ5IG5vdGlmaWVkIHRoYXQgYW55IGRpc3NlbWluYXRpb24sIGRpc3RyaWJ1dGlvbiwgY29w eWluZywgb3IgYWN0aW9uIHRha2VuIGluIHJlbGF0aW9uIHRvIHRoZSBjb250ZW50cyBvZiBhbmQg YXR0YWNobWVudHMgdG8gdGhpcyBFLW1haWwgaXMgc3RyaWN0bHkgcHJvaGliaXRlZCBhbmQgbWF5 IGJlIHVubGF3ZnVsLiBJZiB5b3UgaGF2ZSByZWNlaXZlZCB0aGlzIEUtbWFpbCBpbiBlcnJvciwg cGxlYXNlIG5vdGlmeSB0aGUgc2VuZGVyIGltbWVkaWF0ZWx5IGFuZCBwZXJtYW5lbnRseSBkZWxl dGUgdGhlIG9yaWdpbmFsIGFuZCBhbnkgY29weSBvZiB0aGlzIEUtbWFpbCBhbmQgYW55IHByaW50 b3V0Lg0KX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18NCnNw cmluZyBtYWlsaW5nIGxpc3QNCnNwcmluZ0BpZXRmLm9yZw0KaHR0cHM6Ly93d3cuaWV0Zi5vcmcv bWFpbG1hbi9saXN0aW5mby9zcHJpbmcNCg== From nobody Mon May 19 11:41:40 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 405681A00EA for ; 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Mon, 19 May 2014 18:41:27 +0000 Received: from BN1BFFO11FD059.protection.gbl (2a01:111:f400:7c10::1:140) by BY2PR05CA021.outlook.office365.com (2a01:111:e400:2c5f::11) with Microsoft SMTP Server (TLS) id 15.0.944.11 via Frontend Transport; Mon, 19 May 2014 18:41:26 +0000 Received: from p-cldedg02-hq.juniper.net (207.17.137.149) by BN1BFFO11FD059.mail.protection.outlook.com (10.58.145.14) with Microsoft SMTP Server (TLS) id 15.0.949.9 via Frontend Transport; Mon, 19 May 2014 18:41:26 +0000 Received: from P-EMF03-SAC.jnpr.net (172.24.192.19) by o365mail.juniper.net (207.17.137.149) with Microsoft SMTP Server (TLS) id 14.3.146.0; Mon, 19 May 2014 11:41:01 -0700 Received: from magenta.juniper.net (172.17.27.123) by P-EMF03-SAC.jnpr.net (172.24.192.21) with Microsoft SMTP Server (TLS) id 14.3.146.0; Mon, 19 May 2014 11:40:59 -0700 Received: from juniper.net (sapphire.juniper.net [172.17.28.108]) by magenta.juniper.net (8.11.3/8.11.3) with ESMTP id s4JIeZn82960; Mon, 19 May 2014 11:40:43 -0700 (PDT) (envelope-from yakov@juniper.net) Message-ID: <201405191840.s4JIeZn82960@magenta.juniper.net> To: Robert Raszuk In-Reply-To: References: <201405161737.s4GHbmL60524@magenta.juniper.net> X-MH-In-Reply-To: Robert Raszuk message dated "Fri, 16 May 2014 20:21:38 +0200." MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <35258.1400524834.1@juniper.net> Date: Mon, 19 May 2014 11:40:35 -0700 From: Yakov Rekhter X-EOPAttributedMessage: 0 X-Forefront-Antispam-Report: CIP:207.17.137.149; CTRY:US; IPV:CAL; IPV:NLI; IPV:NLI; EFV:NLI; SFV:NSPM; SFS:(6009001)(51704005)(24454002)(377454003)(199002)(189002)(377424004)(80022001)(46406003)(99396002)(74502001)(26826002)(15975445006)(46102001)(23726002)(79102001)(102836001)(86362001)(87936001)(19580395003)(83322001)(19580405001)(4396001)(92726001)(92566001)(64706001)(20776003)(47776003)(21056001)(54356999)(50466002)(77982001)(85852003)(83072002)(76176999)(77096999)(15202345003)(50986999)(97756001)(44976005)(81342001)(76482001)(6806004)(74662001)(31966008)(81542001); DIR:OUT; SFP:; SCL:1; SRVR:BY2PR05MB109; H:p-cldedg02-hq.juniper.net; FPR:; MLV:ovrnspm; PTR:p-cldedg02-hq.juniper.net; A:1; MX:1; LANG:en; X-Forefront-PRVS: 021670B4D2 Received-SPF: SoftFail (: domain of transitioning juniper.net discourages use of 207.17.137.149 as permitted sender) Authentication-Results: spf=softfail (sender IP is 207.17.137.149) smtp.mailfrom=yakov@juniper.net; X-OriginatorOrg: juniper.net Archived-At: http://mailarchive.ietf.org/arch/msg/spring/PbBQ6Y2Cwz5ewjbqlFOsDsN5pVM Cc: "Alvaro Retana \(aretana\)" , "spring@ietf.org" , "John G. Scudder" Subject: Re: [spring] draft-gredler-spring-mpls-05.txt as SPRING WG document X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 19 May 2014 18:41:38 -0000 Robert, > Hi, > > Two comments on this document. > > > Question: > > Assume there is label binding received for a given FEC from/by > multiple protocols. Which one should be chosen by the LSR to be used > in data plane? Choosing wrong one may jeoparadise the hope of > stitching. > > Is consistent manual configuration across multiple LSRs an answer ? > > If so document should mention that. Otherwise analogy of admin > distance for FECs should be proposed. > > Example: Is FEC distributed by OSPF more important then FEC > distributed by targetted LDP session in the same OSPF domain ? > > On the other hand if this case is considered an error a corresponding > error handling section may be required. When a router obtains label binding for a given FEC from more than one label distribution protocol (e.g., one binding from targeted LDP and another from IS-IS/OSPF), deciding which label binding to use is a matter of policy local to the router. Use of the administrative distance is an instance of such policy. In the scenario where a router obtains label binding for a given FEC from both targeted LDP and IS-IS/OSPF, one could argue that a reasonable default behavior would be to prefer the one obtained from targeted LDP. > Recommendation: > > s/distirbution/distribution/ Will fix in the next version. Thanks. Yakov. > On Fri, May 16, 2014 at 7:37 PM, Yakov Rekhter wrote: > > Alvaro and John, > > > > The authors of draft-gredler-spring-mpls-05.txt would like > > to ask SPRING WG to accept this draft as SPRING WG document. > > > > Yakov. > > ------- Forwarded Message > > > > Date: Fri, 16 May 2014 10:33:51 -0700 > > From: > > To: > > Subject: I-D Action: draft-gredler-spring-mpls-05.txt > > > > > > A New Internet-Draft is available from the on-line Internet-Drafts director ies. > > > > > > Title : Supporting Source/Explicitly Routed Tunnels via S tack > > ed LSPs > > Authors : Hannes Gredler > > Yakov Rekhter > > Luay Jalil > > Sriganesh Kini > > Xiaohu Xu > > Filename : draft-gredler-spring-mpls-05.txt > > Pages : 17 > > Date : 2014-05-16 > > > > Abstract: > > This document describes how source/explicitly routed tunnels could be > > realized using stacked Label Switched Paths (LSPs). > > > > This document also describes how use of IS-IS/OSPF as a label > > distribution protocol fits into the MPLS architecture. > > > > > > The IETF datatracker status page for this draft is: > > https://datatracker.ietf.org/doc/draft-gredler-spring-mpls/ > > > > There's also a htmlized version available at: > > http://tools.ietf.org/html/draft-gredler-spring-mpls-05 > > > > A diff from the previous version is available at: > > http://www.ietf.org/rfcdiff?url2=draft-gredler-spring-mpls-05 > > > > > > Please note that it may take a couple of minutes from the time of submissio n > > 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/ > > > > _______________________________________________ > > I-D-Announce mailing list > > I-D-Announce@ietf.org > > https://www.ietf.org/mailman/listinfo/i-d-announce > > Internet-Draft directories: http://www.ietf.org/shadow.html > > or ftp://ftp.ietf.org/ietf/1shadow-sites.txt > > > > ------- End of Forwarded Message > > > > _______________________________________________ > > spring mailing list > > spring@ietf.org > > https://www.ietf.org/mailman/listinfo/spring From nobody Tue May 20 02:00:40 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id EF2181A0527 for ; Tue, 20 May 2014 02:00:38 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -15.152 X-Spam-Level: X-Spam-Status: No, score=-15.152 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, RP_MATCHES_RCVD=-0.651, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id t64O66pSt-m9 for ; Tue, 20 May 2014 02:00:37 -0700 (PDT) Received: from alln-iport-4.cisco.com (alln-iport-4.cisco.com [173.37.142.91]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 603021A0505 for ; Tue, 20 May 2014 02:00:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=2566; q=dns/txt; s=iport; t=1400576437; x=1401786037; h=from:to:subject:date:message-id:content-id: content-transfer-encoding:mime-version; bh=FJd1mGvhQmezaV0ff/CRYdBJGwaEV/S9JzU1xfKh5t0=; b=AZodIbZFP3sWI/BdpVf45jMc/AMaQdp3mdLcs3uAZwi6LKc5GC0bq28U TFLZzgv4CdkjJtRZWNlNZnE7EkuLlWtkXNyLOiWlksSnyTgnJOQ51E+Mz /TPhD54wXeT+wLSEaPyDHaFNlOwUjSRIK4HCtyrfUjUPmJACd/o++mADq U=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AhEFAGkYe1OtJA2G/2dsb2JhbABZgwZRWMUpFnSCLDpRARokQhcQBAEtiCYN0jEXjWwRAYQCgRUElWSDfIE9kWCDOIFwBxcGHA X-IronPort-AV: E=Sophos;i="4.98,873,1392163200"; d="scan'208";a="45427134" Received: from alln-core-12.cisco.com ([173.36.13.134]) by alln-iport-4.cisco.com with ESMTP; 20 May 2014 09:00:36 +0000 Received: from xhc-aln-x08.cisco.com (xhc-aln-x08.cisco.com [173.36.12.82]) by alln-core-12.cisco.com (8.14.5/8.14.5) with ESMTP id s4K90atC008941 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=FAIL); Tue, 20 May 2014 09:00:36 GMT Received: from xmb-rcd-x01.cisco.com ([169.254.1.6]) by xhc-aln-x08.cisco.com ([173.36.12.82]) with mapi id 14.03.0123.003; Tue, 20 May 2014 04:00:36 -0500 From: "Stefano Previdi (sprevidi)" To: " ietf.org" , "Alvaro Retana (aretana)" , "John G. Scudder" Thread-Topic: Segment Routing Drafts Thread-Index: AQHPdAn2ZN73crca9E+XAk2SgXwmGw== Date: Tue, 20 May 2014 09:00:35 +0000 Message-ID: <9608BFEB-D9E3-4EF0-90F0-EDE208E7BDE9@cisco.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.61.169.61] Content-Type: text/plain; charset="us-ascii" Content-ID: <6BBDB222F3AD094E9CB7B6321352E2EB@emea.cisco.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Archived-At: http://mailarchive.ietf.org/arch/msg/spring/FHBcXVRIHRLrmOESp0I88Z5wuKM Subject: [spring] Segment Routing Drafts X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 May 2014 09:00:39 -0000 Dear WG members and co-chairs, after the adoption of draft-ietf-spring-problem-statement I'd like to submi= t=20 to your consideration the following documents that has been presented alrea= dy=20 at multiple occasions (IETF87, IETF88 and IETF89): 1. http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-use-cas= es-00 The WG already expressed consensus and support to the document during IETF8= 8 but its adoption to WG item has been deferred due to the work on the problem=20 statement draft.=20 2. http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-01 This document is the base description of the SR technology and terminology.= It=20 has updated to the latest state of the agreement on SR from all the co-auth= ors=20 (vendors and operators). The draft has been simplified and focuses on the=20 SR terminology and applicability to existing dataplanes. It clearly describ= es=20 how SR fits within the MPLS architecture and IPv6 architecture. 3. http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-mpls-01 The document describes the instantiation of SR on the MPLS dataplane. The=20 draft has been updated with some illustration examples so to show how SR=20 operates on top of MPLS and how MPLS dataplane is used "as is", i.e., witho= ut=20 any modification. 4. http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-ldp-int= erop-01 This document describes the interoperability between SR and LDP in order to= =20 ease gradual deployments and co-existence between SR and legacy LDP control= =20 plane. 5. http://tools.ietf.org/html/draft-francois-spring-segment-routing-ti-lfa-= 00 This document outlines the SR solution for a Topology Independent LFA strat= egy. It addresses the use case and requirement described in=20 draft-ietf-spring-resiliency-use-cases-00 As a reminder, Segment Routing protocol extensions are described in: . http://tools.ietf.org/html/draft-ietf-isis-segment-routing-extensions-00 WG Item in ISIS working group . http://tools.ietf.org/html/draft-psenak-ospf-segment-routing-extensions-0= 4 http://tools.ietf.org/html/draft-psenak-ospf-segment-routing-ospfv3-extens= ion-01 in OSPF working group . http://tools.ietf.org/html/draft-sivabalan-pce-segment-routing-02 in PCE working group The scope of this email is to bring these documents to your attention in or= der=20 to validate the consensus and support the authors require prior to request= =20 their adoption as WG items to the WG-chairs. Thanks. s. From nobody Tue May 20 08:19:20 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5A4631A034A for ; Tue, 20 May 2014 08:19:17 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.902 X-Spam-Level: X-Spam-Status: No, score=-1.902 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id IYODhVSvITJp for ; Tue, 20 May 2014 08:19:15 -0700 (PDT) Received: from na01-bn1-obe.outbound.protection.outlook.com (mail-bn1lp0141.outbound.protection.outlook.com [207.46.163.141]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 1837B1A0737 for ; Tue, 20 May 2014 08:19:07 -0700 (PDT) Received: from BL2PRD0510HT001.namprd05.prod.outlook.com (10.255.100.36) by CO2PR0501MB918.namprd05.prod.outlook.com (10.141.247.21) with Microsoft SMTP Server (TLS) id 15.0.944.11; Tue, 20 May 2014 15:19:04 +0000 Received: from juniper.net (193.110.55.17) by pod51010.outlook.com (10.255.100.36) with Microsoft SMTP Server (TLS) id 14.16.459.0; Tue, 20 May 2014 15:19:02 +0000 Date: Tue, 20 May 2014 17:18:56 +0200 From: Hannes Gredler To: Robert Raszuk Message-ID: <20140520151856.GA11618@juniper.net> References: <201405161737.s4GHbmL60524@magenta.juniper.net> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Originating-IP: [193.110.55.17] X-Forefront-PRVS: 02176E2458 X-Forefront-Antispam-Report: SFV:NSPM; SFS:(6009001)(428001)(377424004)(199002)(189002)(377454003)(24454002)(77982001)(20776003)(47776003)(64706001)(50986999)(83072002)(85852003)(80022001)(97756001)(50466002)(66066001)(46102001)(4396001)(46406003)(21056001)(101416001)(79102001)(23726002)(54356999)(92566001)(87936001)(76482001)(76176999)(92726001)(36756003)(99396002)(86362001)(19580395003)(19580405001)(83322001)(15202345003)(74502001)(83506001)(33656001)(71816001)(81342001)(74662001)(102836001)(81542001)(15975445006)(31966008)(579124002); DIR:OUT; SFP:; SCL:1; SRVR:CO2PR0501MB918; H:BL2PRD0510HT001.namprd05.prod.outlook.com; FPR:; MLV:sfv; PTR:InfoNoRecords; A:1; MX:1; LANG:en; Received-SPF: None (: juniper.net does not designate permitted sender hosts) Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=hannes@juniper.net; X-OriginatorOrg: juniper.net Archived-At: http://mailarchive.ietf.org/arch/msg/spring/1Pg1qPzTG1fAVGT6i_R0ZCq1o3E Cc: Yakov Rekhter , "spring@ietf.org" , "John G. Scudder" , "Alvaro Retana \(aretana\)" Subject: Re: [spring] draft-gredler-spring-mpls-05.txt as SPRING WG document X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 May 2014 15:19:17 -0000 hi robert, On Fri, May 16, 2014 at 08:21:38PM +0200, Robert Raszuk wrote: | Hi, | | Two comments on this document. | | | Question: | | Assume there is label binding received for a given FEC from/by | multiple protocols. Which one should be chosen by the LSR to be used | in data plane? Choosing wrong one may jeoparadise the hope of | stitching. i'd assume that an implementation supporting multiple label-distribution protocols, has an internal tie-breaking scheme and install LSPs for a fiven FEC only from the highest ranking protocol. | Is consistent manual configuration across multiple LSRs an answer ? possibly; - see below; | If so document should mention that. Otherwise analogy of admin | distance for FECs should be proposed. explicitly mentioning that there is a plurality of label-binding protocols seems unecessary to me. you are right insofar as rfc3031 does *not* mention a tie-breaking amon protocols and yet there are implemntations who support more than one concurrent label-distribution protocol. | Example: Is FEC distributed by OSPF more important then FEC | distributed by targetted LDP session in the same OSPF domain ? that is an implementation choice; hopefully the administrative preference is user configurable. | On the other hand if this case is considered an error a corresponding | error handling section may be required. | | | Recommendation: | | s/distirbution/distribution/ | | | Best regards, | R. | | | On Fri, May 16, 2014 at 7:37 PM, Yakov Rekhter wrote: | > Alvaro and John, | > | > The authors of draft-gredler-spring-mpls-05.txt would like | > to ask SPRING WG to accept this draft as SPRING WG document. | > | > Yakov. | > ------- Forwarded Message | > | > Date: Fri, 16 May 2014 10:33:51 -0700 | > From: | > To: | > Subject: I-D Action: draft-gredler-spring-mpls-05.txt | > | > | > A New Internet-Draft is available from the on-line Internet-Drafts directories. | > | > | > Title : Supporting Source/Explicitly Routed Tunnels via Stack | > ed LSPs | > Authors : Hannes Gredler | > Yakov Rekhter | > Luay Jalil | > Sriganesh Kini | > Xiaohu Xu | > Filename : draft-gredler-spring-mpls-05.txt | > Pages : 17 | > Date : 2014-05-16 | > | > Abstract: | > This document describes how source/explicitly routed tunnels could be | > realized using stacked Label Switched Paths (LSPs). | > | > This document also describes how use of IS-IS/OSPF as a label | > distribution protocol fits into the MPLS architecture. | > | > | > The IETF datatracker status page for this draft is: | > https://datatracker.ietf.org/doc/draft-gredler-spring-mpls/ | > | > There's also a htmlized version available at: | > http://tools.ietf.org/html/draft-gredler-spring-mpls-05 | > | > A diff from the previous version is available at: | > http://www.ietf.org/rfcdiff?url2=draft-gredler-spring-mpls-05 | > | > | > 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/ | > | > _______________________________________________ | > I-D-Announce mailing list | > I-D-Announce@ietf.org | > https://www.ietf.org/mailman/listinfo/i-d-announce | > Internet-Draft directories: http://www.ietf.org/shadow.html | > or ftp://ftp.ietf.org/ietf/1shadow-sites.txt | > | > ------- End of Forwarded Message | > | > _______________________________________________ | > spring mailing list | > spring@ietf.org | > https://www.ietf.org/mailman/listinfo/spring | | _______________________________________________ | spring mailing list | spring@ietf.org | https://www.ietf.org/mailman/listinfo/spring From nobody Tue May 20 08:27:03 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id ED2511A076C for ; Tue, 20 May 2014 08:27:01 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.278 X-Spam-Level: X-Spam-Status: No, score=-1.278 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, FM_FORGED_GMAIL=0.622, FREEMAIL_FROM=0.001, SPF_PASS=-0.001] autolearn=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 y8udRhEoS_Vm for ; Tue, 20 May 2014 08:27:00 -0700 (PDT) Received: from mail-ig0-x236.google.com (mail-ig0-x236.google.com [IPv6:2607:f8b0:4001:c05::236]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 8E2491A0769 for ; Tue, 20 May 2014 08:27:00 -0700 (PDT) Received: by mail-ig0-f182.google.com with SMTP id uy17so875751igb.3 for ; Tue, 20 May 2014 08:26:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=Qd4O8z1ezEUH2bo/sKML0IxOs5vmbFPdUWi7TLHOyx8=; b=yWX9/KPa58bVWPEeXXtBSQUYUazrWb77UaARfQfB9LDwddjJXeyBAxcRHuNRuSKxjb sg+w7PHIjl4ghIynWP7GkmguMyAh7li+dawbtnhZe6kYuIWG+8IE/JrPUErNTiQGXJYq EM8e9PY/J5JMMoCeAa5ck1LNvk/gLFMuEeX+zlP4DTNacWTy1paZxqrKH1x1i8ApmOOw +f9UjdV0anLqlUfmbp5DDRQqlw+X/uiM15X8/knfolpwYqs7Wwzky+M847a9/2Gs2fg0 F1xq4FD6BUD19K6Ptcf4z64YYlKUO+UsFWpB3S1Q8Jfkkb1pIlC2/N1W1gv/wbRCQwmp PCJg== MIME-Version: 1.0 X-Received: by 10.43.87.200 with SMTP id ax8mr3457480icc.97.1400599619765; Tue, 20 May 2014 08:26:59 -0700 (PDT) Sender: rraszuk@gmail.com Received: by 10.64.242.198 with HTTP; Tue, 20 May 2014 08:26:59 -0700 (PDT) In-Reply-To: <20140520151856.GA11618@juniper.net> References: <201405161737.s4GHbmL60524@magenta.juniper.net> <20140520151856.GA11618@juniper.net> Date: Tue, 20 May 2014 17:26:59 +0200 X-Google-Sender-Auth: ueST7Z8fcCXoAeLipKy3Id5ZB_w Message-ID: From: Robert Raszuk To: Hannes Gredler Content-Type: text/plain; charset=UTF-8 Archived-At: http://mailarchive.ietf.org/arch/msg/spring/zeT2YgWDY0gErzANnabeEISax_4 Cc: Yakov Rekhter , "spring@ietf.org" , "John G. Scudder" , "Alvaro Retana \(aretana\)" Subject: Re: [spring] draft-gredler-spring-mpls-05.txt as SPRING WG document X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 May 2014 15:27:02 -0000 Hi Hannes & Yakov, Thank you for your opinion on this. My major concern is consistency among routers especially in large network. While indeed one may say that this is a local policy matter the question is can we do better then that especially where we are coming with new label distribution protocols. Also implementations need to somehow define such policy and perhaps setting a reference to a recommended order in RFC could be a good set of defaults ? Otherwise likely Murphy's law will apply :) Cheers, R. On Tue, May 20, 2014 at 5:18 PM, Hannes Gredler wrote: > hi robert, > > On Fri, May 16, 2014 at 08:21:38PM +0200, Robert Raszuk wrote: > | Hi, > | > | Two comments on this document. > | > | > | Question: > | > | Assume there is label binding received for a given FEC from/by > | multiple protocols. Which one should be chosen by the LSR to be used > | in data plane? Choosing wrong one may jeoparadise the hope of > | stitching. > > i'd assume that an implementation supporting multiple label-distribution protocols, > has an internal tie-breaking scheme and install LSPs for a fiven FEC only from > the highest ranking protocol. > > | Is consistent manual configuration across multiple LSRs an answer ? > > possibly; - see below; > > | If so document should mention that. Otherwise analogy of admin > | distance for FECs should be proposed. > > explicitly mentioning that there is a plurality of label-binding protocols > seems unecessary to me. you are right insofar as rfc3031 does *not* mention > a tie-breaking amon protocols and yet there are implemntations who support > more than one concurrent label-distribution protocol. > > | Example: Is FEC distributed by OSPF more important then FEC > | distributed by targetted LDP session in the same OSPF domain ? > > that is an implementation choice; hopefully the administrative > preference is user configurable. > > | On the other hand if this case is considered an error a corresponding > | error handling section may be required. > | > | > | Recommendation: > | > | s/distirbution/distribution/ > | > | > | Best regards, > | R. > | > | > | On Fri, May 16, 2014 at 7:37 PM, Yakov Rekhter wrote: > | > Alvaro and John, > | > > | > The authors of draft-gredler-spring-mpls-05.txt would like > | > to ask SPRING WG to accept this draft as SPRING WG document. > | > > | > Yakov. > | > ------- Forwarded Message > | > > | > Date: Fri, 16 May 2014 10:33:51 -0700 > | > From: > | > To: > | > Subject: I-D Action: draft-gredler-spring-mpls-05.txt > | > > | > > | > A New Internet-Draft is available from the on-line Internet-Drafts directories. > | > > | > > | > Title : Supporting Source/Explicitly Routed Tunnels via Stack > | > ed LSPs > | > Authors : Hannes Gredler > | > Yakov Rekhter > | > Luay Jalil > | > Sriganesh Kini > | > Xiaohu Xu > | > Filename : draft-gredler-spring-mpls-05.txt > | > Pages : 17 > | > Date : 2014-05-16 > | > > | > Abstract: > | > This document describes how source/explicitly routed tunnels could be > | > realized using stacked Label Switched Paths (LSPs). > | > > | > This document also describes how use of IS-IS/OSPF as a label > | > distribution protocol fits into the MPLS architecture. > | > > | > > | > The IETF datatracker status page for this draft is: > | > https://datatracker.ietf.org/doc/draft-gredler-spring-mpls/ > | > > | > There's also a htmlized version available at: > | > http://tools.ietf.org/html/draft-gredler-spring-mpls-05 > | > > | > A diff from the previous version is available at: > | > http://www.ietf.org/rfcdiff?url2=draft-gredler-spring-mpls-05 > | > > | > > | > 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/ > | > > | > _______________________________________________ > | > I-D-Announce mailing list > | > I-D-Announce@ietf.org > | > https://www.ietf.org/mailman/listinfo/i-d-announce > | > Internet-Draft directories: http://www.ietf.org/shadow.html > | > or ftp://ftp.ietf.org/ietf/1shadow-sites.txt > | > > | > ------- End of Forwarded Message > | > > | > _______________________________________________ > | > spring mailing list > | > spring@ietf.org > | > https://www.ietf.org/mailman/listinfo/spring > | > | _______________________________________________ > | spring mailing list > | spring@ietf.org > | https://www.ietf.org/mailman/listinfo/spring From nobody Wed May 21 00:19:09 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5E2D71A0262 for ; Wed, 21 May 2014 00:19:08 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.063 X-Spam-Level: X-Spam-Status: No, score=-2.063 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, CN_BODY_35=0.339, MIME_CHARSET_FARAWAY=2.45, RCVD_IN_DNSWL_MED=-2.3, RP_MATCHES_RCVD=-0.651, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 4BdpkUppuTyK for ; Wed, 21 May 2014 00:19:05 -0700 (PDT) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id CB0A21A0173 for ; Wed, 21 May 2014 00:19:04 -0700 (PDT) Received: from 172.18.7.190 (EHLO lhreml204-edg.china.huawei.com) ([172.18.7.190]) by lhrrg01-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id BHA36751; Wed, 21 May 2014 07:19:02 +0000 (GMT) Received: from LHREML401-HUB.china.huawei.com (10.201.5.240) by lhreml204-edg.china.huawei.com (172.18.7.223) with Microsoft SMTP Server (TLS) id 14.3.158.1; Wed, 21 May 2014 08:18:36 +0100 Received: from NKGEML404-HUB.china.huawei.com (10.98.56.35) by lhreml401-hub.china.huawei.com (10.201.5.240) with Microsoft SMTP Server (TLS) id 14.3.158.1; Wed, 21 May 2014 08:18:44 +0100 Received: from NKGEML512-MBS.china.huawei.com ([169.254.8.62]) by nkgeml404-hub.china.huawei.com ([10.98.56.35]) with mapi id 14.03.0158.001; Wed, 21 May 2014 15:18:40 +0800 From: Xuxiaohu To: Robert Raszuk , Hannes Gredler Thread-Topic: [spring] draft-gredler-spring-mpls-05.txt as SPRING WG document Thread-Index: AQHPcS3Av8J+WBxYgEWeckQjaKquPJtC/uIAgAYWSACAAAI/gIABjG0Q Date: Wed, 21 May 2014 07:18:39 +0000 Message-ID: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A889@NKGEML512-MBS.china.huawei.com> References: <201405161737.s4GHbmL60524@magenta.juniper.net> <20140520151856.GA11618@juniper.net> In-Reply-To: Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.111.98.134] Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-CFilter-Loop: Reflected Archived-At: http://mailarchive.ietf.org/arch/msg/spring/ZvtfGcap9ZxcsGWUb_H0PXnY6wU Cc: Yakov Rekhter , "spring@ietf.org" , "Alvaro Retana \(aretana\)" , "John G. Scudder" Subject: Re: [spring] draft-gredler-spring-mpls-05.txt as SPRING WG document X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." 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aW5nIG1haWxpbmcgbGlzdA0KPiBzcHJpbmdAaWV0Zi5vcmcNCj4gaHR0cHM6Ly93d3cuaWV0Zi5v cmcvbWFpbG1hbi9saXN0aW5mby9zcHJpbmcNCg== From nobody Wed May 21 00:25:13 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id DD5011A0823 for ; Wed, 21 May 2014 00:25:12 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.278 X-Spam-Level: X-Spam-Status: No, score=-1.278 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, FM_FORGED_GMAIL=0.622, FREEMAIL_FROM=0.001, SPF_PASS=-0.001] autolearn=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 GWy6sM1TglVo for ; Wed, 21 May 2014 00:25:12 -0700 (PDT) Received: from mail-qc0-x233.google.com (mail-qc0-x233.google.com [IPv6:2607:f8b0:400d:c01::233]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 320781A0647 for ; Wed, 21 May 2014 00:25:12 -0700 (PDT) Received: by mail-qc0-f179.google.com with SMTP id x3so2540013qcv.38 for ; Wed, 21 May 2014 00:25:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=tvdWObwh9YUido0QFbg6AyxGO0gBbbjEF8ITXYVdn2w=; b=GG6y8MZuhVDhErAChmQpe+/mJwsCJ4jAWr88HgUodT2qno2RIKptqLpvy6YGA74rgk YtMJ36LN6jW2ivXR15blj4DxnKng4tGgXlJ0T0GA2alap+ZgPEQOLmmEn17dnLL8VSmY V+RCCt68nFdsiracGr0Bz0otunnGHhp+/US0MbfI/cvChpU3QXcY2+YlmUJKLZLIApSI 9kP6odlcaaKEt2FcxyP1eRSm8vIoFty5X6NS7xb8n/4CnK1LAo7ISBDyDgpbGn9IIZyB kn7N3sMfbxZkEoBWs4MuAiaUSaeoiH1pkXNSQb+Xcjq3yeMdLBH2Uv5fe1AePo3DvClC RRgQ== MIME-Version: 1.0 X-Received: by 10.224.112.138 with SMTP id w10mr45732433qap.31.1400657110958; Wed, 21 May 2014 00:25:10 -0700 (PDT) Sender: rraszuk@gmail.com Received: by 10.229.161.141 with HTTP; Wed, 21 May 2014 00:25:10 -0700 (PDT) In-Reply-To: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A889@NKGEML512-MBS.china.huawei.com> References: <201405161737.s4GHbmL60524@magenta.juniper.net> <20140520151856.GA11618@juniper.net> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A889@NKGEML512-MBS.china.huawei.com> Date: Wed, 21 May 2014 09:25:10 +0200 X-Google-Sender-Auth: rc59h6OQkt0mxA3WxJzop-aDj_M Message-ID: From: Robert Raszuk To: Xuxiaohu Content-Type: text/plain; charset=UTF-8 Archived-At: http://mailarchive.ietf.org/arch/msg/spring/OiWqXuVAk3HQ8qBGw_klNa2DMBk Cc: Hannes Gredler , "spring@ietf.org" , "Alvaro Retana \(aretana\)" , "John G. Scudder" , Yakov Rekhter Subject: Re: [spring] draft-gredler-spring-mpls-05.txt as SPRING WG document X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 May 2014 07:25:13 -0000 Xiaohu, > Since there are just label distribution protocols which don't affect the route > selection at all, why do you care about that consistency among routers? We are talking about label selection and not route selection. This is about the same FEC so same route hence route selection does not come to the picture. Thx, R. From nobody Wed May 21 00:34:22 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 193801A0821 for ; Wed, 21 May 2014 00:34:21 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.552 X-Spam-Level: X-Spam-Status: No, score=-4.552 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, MIME_8BIT_HEADER=0.3, RCVD_IN_DNSWL_MED=-2.3, RP_MATCHES_RCVD=-0.651, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id A6CRPd8Yhl87 for ; Wed, 21 May 2014 00:34:20 -0700 (PDT) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 607681A0822 for ; Wed, 21 May 2014 00:34:19 -0700 (PDT) Received: from 172.18.7.190 (EHLO lhreml204-edg.china.huawei.com) ([172.18.7.190]) by lhrrg02-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id BEJ38314; Wed, 21 May 2014 07:34:17 +0000 (GMT) Received: from LHREML405-HUB.china.huawei.com (10.201.5.242) by lhreml204-edg.china.huawei.com (172.18.7.223) with Microsoft SMTP Server (TLS) id 14.3.158.1; Wed, 21 May 2014 08:33:42 +0100 Received: from nkgeml409-hub.china.huawei.com (10.98.56.40) by lhreml405-hub.china.huawei.com (10.201.5.242) with Microsoft SMTP Server (TLS) id 14.3.158.1; Wed, 21 May 2014 08:33:50 +0100 Received: from NKGEML512-MBS.china.huawei.com ([169.254.8.62]) by nkgeml409-hub.china.huawei.com ([10.98.56.40]) with mapi id 14.03.0158.001; Wed, 21 May 2014 15:33:44 +0800 From: Xuxiaohu To: Robert Raszuk Thread-Topic: [spring] draft-gredler-spring-mpls-05.txt as SPRING WG document Thread-Index: AQHPcS3Av8J+WBxYgEWeckQjaKquPJtC/uIAgAYWSACAAAI/gIABjG0Q//9/SgCAAIabYA== Date: Wed, 21 May 2014 07:33:44 +0000 Message-ID: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A8A3@NKGEML512-MBS.china.huawei.com> References: <201405161737.s4GHbmL60524@magenta.juniper.net> <20140520151856.GA11618@juniper.net> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A889@NKGEML512-MBS.china.huawei.com> In-Reply-To: Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.111.98.134] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-CFilter-Loop: Reflected Archived-At: http://mailarchive.ietf.org/arch/msg/spring/A5-vuS3j33QwBmRPYdtp-DLOaCU Cc: Hannes Gredler , "spring@ietf.org" , "Alvaro Retana \(aretana\)" , "John G. Scudder" , Yakov Rekhter Subject: [spring] =?utf-8?b?562U5aSNOiAgZHJhZnQtZ3JlZGxlci1zcHJpbmctbXBs?= =?utf-8?q?s-05=2Etxt_as_SPRING_WG_document?= X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 May 2014 07:34:21 -0000 Um9iZXJ0LA0KDQo+IC0tLS0t6YKu5Lu25Y6f5Lu2LS0tLS0NCj4g5Y+R5Lu25Lq6OiBycmFzenVr QGdtYWlsLmNvbSBbbWFpbHRvOnJyYXN6dWtAZ21haWwuY29tXSDku6PooaggUm9iZXJ0IFJhc3p1 aw0KPiDlj5HpgIHml7bpl7Q6IDIwMTTlubQ15pyIMjHml6UgMTU6MjUNCj4g5pS25Lu25Lq6OiBY dXhpYW9odQ0KPiDmioTpgIE6IEhhbm5lcyBHcmVkbGVyOyBZYWtvdiBSZWtodGVyOyBzcHJpbmdA aWV0Zi5vcmc7IEFsdmFybyBSZXRhbmEgKGFyZXRhbmEpOw0KPiBKb2huIEcuIFNjdWRkZXINCj4g 5Li76aKYOiBSZTogW3NwcmluZ10gZHJhZnQtZ3JlZGxlci1zcHJpbmctbXBscy0wNS50eHQgYXMg U1BSSU5HIFdHIGRvY3VtZW50DQo+IA0KPiBYaWFvaHUsDQo+IA0KPiA+IFNpbmNlIHRoZXJlIGFy ZSBqdXN0IGxhYmVsIGRpc3RyaWJ1dGlvbiBwcm90b2NvbHMgd2hpY2ggZG9uJ3QgYWZmZWN0DQo+ ID4gdGhlIHJvdXRlIHNlbGVjdGlvbiBhdCBhbGwsIHdoeSBkbyB5b3UgY2FyZSBhYm91dCB0aGF0 IGNvbnNpc3RlbmN5IGFtb25nDQo+IHJvdXRlcnM/DQo+IA0KPiBXZSBhcmUgdGFsa2luZyBhYm91 dCBsYWJlbCBzZWxlY3Rpb24gYW5kIG5vdCByb3V0ZSBzZWxlY3Rpb24uDQo+IA0KPiBUaGlzIGlz IGFib3V0IHRoZSBzYW1lIEZFQyBzbyBzYW1lIHJvdXRlIGhlbmNlIHJvdXRlIHNlbGVjdGlvbiBk b2VzIG5vdCBjb21lIHRvDQo+IHRoZSBwaWN0dXJlLg0KDQpTdXJlLiBUaGVuIHdoYXQncyB0aGUg cHJvYmxlbSBpZiB0aGVyZSBpcyBpbmNvbnNpc3RlbmN5IG9mIGxhYmVsIHNlbGVjdGlvbiBhbW9u ZyByb3V0ZXJzIChlLmcuLCBzb21lIHJvdXRlcnMgcHJlZmVyIGxhYmVsIGJpbmRpbmdzIGxlYXJu dCBmcm9tIElTSVMgd2hpbGUgb3RoZXJzIHByZWZlciBsYWJlbCBiaW5kaW5ncyBsZWFybnQgZnJv bSBMRFApPw0KDQpCZXN0IHJlZ2FyZHMsDQpYaWFvaHUNCg0KPiBUaHgsDQo+IFIuDQo= From nobody Wed May 21 00:40:57 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id F1F6F1A031B for ; Wed, 21 May 2014 00:40:55 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.978 X-Spam-Level: X-Spam-Status: No, score=-0.978 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, FM_FORGED_GMAIL=0.622, FREEMAIL_FROM=0.001, MIME_8BIT_HEADER=0.3, SPF_PASS=-0.001] autolearn=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 Pu-V8kMEfFwl for ; Wed, 21 May 2014 00:40:54 -0700 (PDT) Received: from mail-qc0-x231.google.com (mail-qc0-x231.google.com [IPv6:2607:f8b0:400d:c01::231]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id A7D3D1A0268 for ; Wed, 21 May 2014 00:40:54 -0700 (PDT) Received: by mail-qc0-f177.google.com with SMTP id i17so2524608qcy.8 for ; Wed, 21 May 2014 00:40:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type:content-transfer-encoding; bh=pzaN8I8zDyZSC8CdfJbYFI6JeaIjZbE2Fes9MKNJ5pY=; b=gYPM8ba7On/Rk2ytt3GaeAsDTuFtqaydGyUcSWi7h5DLhqrTjSFxr5Ou22p5kWUPKm BpaCezW4K3YfmGJSPDzHEwbEi1kmaKpiK4wW9fzdzkBRzazDQnidJhvjG1O2lJ0VY86O nJfxeUayrlxQ4GtP1DhZ0ex5Qr5YDE1tWIiaqkp90R8H5IQU/AoRDquP/n5pFNzBbGIY 3EGzGB68KvmC1MVo0kdEHAhyTCSuqtddbn6YZhH6N+b9uhPUaL96ia3o/KkzAvJrlSX5 /elHCkzPCBfmBHKpZB2BPx5UHzAiKFBDZwIzD937wzKzv1irDmEfTHwppfGyxQFi/oVw EJuQ== MIME-Version: 1.0 X-Received: by 10.140.21.239 with SMTP id 102mr26364328qgl.31.1400658053384; Wed, 21 May 2014 00:40:53 -0700 (PDT) Sender: rraszuk@gmail.com Received: by 10.229.161.141 with HTTP; Wed, 21 May 2014 00:40:53 -0700 (PDT) In-Reply-To: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A8A3@NKGEML512-MBS.china.huawei.com> References: <201405161737.s4GHbmL60524@magenta.juniper.net> <20140520151856.GA11618@juniper.net> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A889@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A8A3@NKGEML512-MBS.china.huawei.com> Date: Wed, 21 May 2014 09:40:53 +0200 X-Google-Sender-Auth: uWo0xw_ylG4rbaRX24yExcn-h_s Message-ID: From: Robert Raszuk To: Xuxiaohu Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Archived-At: http://mailarchive.ietf.org/arch/msg/spring/_t98PdWaiIABu3c9IojZnIzSl10 Cc: Yakov Rekhter , Hannes Gredler , "spring@ietf.org" , "John G. Scudder" , "Alvaro Retana \(aretana\)" Subject: Re: [spring] =?utf-8?b?562U5aSNOiBkcmFmdC1ncmVkbGVyLXNwcmluZy1tcGxz?= =?utf-8?q?-05=2Etxt_as_SPRING_WG_document?= X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 May 2014 07:40:56 -0000 If your SR segments are to be engineered by set of SR headers for a given FEC and anywhere in the network you will suddenly choose LDP learned label for a given FEC the forwarding results will be rather poor don't you think ? r. On Wed, May 21, 2014 at 9:33 AM, Xuxiaohu wrote: > Robert, > >> -----=E9=82=AE=E4=BB=B6=E5=8E=9F=E4=BB=B6----- >> =E5=8F=91=E4=BB=B6=E4=BA=BA: rraszuk@gmail.com [mailto:rraszuk@gmail.com= ] =E4=BB=A3=E8=A1=A8 Robert Raszuk >> =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2014=E5=B9=B45=E6=9C=8821=E6=97=A5= 15:25 >> =E6=94=B6=E4=BB=B6=E4=BA=BA: Xuxiaohu >> =E6=8A=84=E9=80=81: Hannes Gredler; Yakov Rekhter; spring@ietf.org; Alva= ro Retana (aretana); >> John G. Scudder >> =E4=B8=BB=E9=A2=98: Re: [spring] draft-gredler-spring-mpls-05.txt as SPR= ING WG document >> >> Xiaohu, >> >> > Since there are just label distribution protocols which don't affect >> > the route selection at all, why do you care about that consistency amo= ng >> routers? >> >> We are talking about label selection and not route selection. >> >> This is about the same FEC so same route hence route selection does not = come to >> the picture. > > Sure. Then what's the problem if there is inconsistency of label selectio= n among routers (e.g., some routers prefer label bindings learnt from ISIS = while others prefer label bindings learnt from LDP)? > > Best regards, > Xiaohu > >> Thx, >> R. > _______________________________________________ > spring mailing list > spring@ietf.org > https://www.ietf.org/mailman/listinfo/spring From nobody Wed May 21 01:01:46 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id B51EC1A0412 for ; Wed, 21 May 2014 01:01:42 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.552 X-Spam-Level: X-Spam-Status: No, score=-4.552 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, MIME_8BIT_HEADER=0.3, RCVD_IN_DNSWL_MED=-2.3, RP_MATCHES_RCVD=-0.651, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id FKK0SMaOOGDS for ; Wed, 21 May 2014 01:01:41 -0700 (PDT) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id D925F1A03A6 for ; Wed, 21 May 2014 01:01:40 -0700 (PDT) Received: from 172.18.7.190 (EHLO lhreml203-edg.china.huawei.com) ([172.18.7.190]) by lhrrg02-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id BEJ41337; Wed, 21 May 2014 08:01:39 +0000 (GMT) Received: from LHREML402-HUB.china.huawei.com (10.201.5.241) by lhreml203-edg.huawei.com (172.18.7.221) with Microsoft SMTP Server (TLS) id 14.3.158.1; Wed, 21 May 2014 09:01:01 +0100 Received: from nkgeml405-hub.china.huawei.com (10.98.56.36) by lhreml402-hub.china.huawei.com (10.201.5.241) with Microsoft SMTP Server (TLS) id 14.3.158.1; Wed, 21 May 2014 09:01:10 +0100 Received: from NKGEML512-MBS.china.huawei.com ([169.254.8.62]) by nkgeml405-hub.china.huawei.com ([10.98.56.36]) with mapi id 14.03.0158.001; Wed, 21 May 2014 16:01:07 +0800 From: Xuxiaohu To: Robert Raszuk Thread-Topic: =?utf-8?B?W3NwcmluZ10g562U5aSNOiBkcmFmdC1ncmVkbGVyLXNwcmluZy1tcGxzLTA1?= =?utf-8?Q?.txt_as_SPRING_WG_document?= Thread-Index: AQHPdMgJ9djGLgKazkm3UOA+KxqW5ptKpxww Date: Wed, 21 May 2014 08:01:06 +0000 Message-ID: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A8E1@NKGEML512-MBS.china.huawei.com> References: <201405161737.s4GHbmL60524@magenta.juniper.net> <20140520151856.GA11618@juniper.net> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A889@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A8A3@NKGEML512-MBS.china.huawei.com> In-Reply-To: Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.111.98.134] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-CFilter-Loop: Reflected Archived-At: http://mailarchive.ietf.org/arch/msg/spring/YBGK0XqoKKcSAR7eb9JG2_mu7zI Cc: Yakov Rekhter , Hannes Gredler , "spring@ietf.org" , "John G. Scudder" , "Alvaro Retana \(aretana\)" Subject: [spring] =?utf-8?b?562U5aSNOiAg562U5aSNOiBkcmFmdC1ncmVkbGVyLXNw?= =?utf-8?q?ring-mpls-05=2Etxt_as_SPRING_WG_document?= X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 May 2014 08:01:42 -0000 Tm8sIEkgZG9uJ3QgdGhpbmsgc28uIEFzIGxvbmcgYXMgYSBsYWJlbCBmb3IgYSBnaXZlbiAzMi8g b3IgMTI4LyBGRUMgaXMgYXR0YWNoZWQgdG8gYSBwYWNrZXQsIG5vIG1hdHRlciBmcm9tIHdoaWNo ZXZlciBsYWJlbCBkaXN0cmlidXRpb24gcHJvdG9jb2wgdGhpcyBsYWJlbCBpcyBsZWFybnQsIHRo ZSBwYWNrZXQgd291bGQgZGVmaW5pdGVseSBiZSBmb3J3YXJkZWQgdG8gdGhlIG5vZGUgaWRlbnRp ZmllZCBieSB0aGF0IEZFQyBhbG9uZyB0aGUgc2hvcnRlc3QgcGF0aC4NCg0KQ291bGQgeW91IGdp dmUgYSBjb25jcmV0ZSBleGFtcGxlIHRvIGlsbHVzdHJhdGUgd2h5IHRoZSBmb3J3YXJkaW5nIHJl c3VsdCBpcyByYXRoZXIgcG9vcj8NCg0KQmVzdCByZWdhcmRzLA0KWGlhb2h1DQoNCj4gLS0tLS3p gq7ku7bljp/ku7YtLS0tLQ0KPiDlj5Hku7bkuro6IHJyYXN6dWtAZ21haWwuY29tIFttYWlsdG86 cnJhc3p1a0BnbWFpbC5jb21dIOS7o+ihqCBSb2JlcnQgUmFzenVrDQo+IOWPkemAgeaXtumXtDog MjAxNOW5tDXmnIgyMeaXpSAxNTo0MQ0KPiDmlLbku7bkuro6IFh1eGlhb2h1DQo+IOaKhOmAgTog SGFubmVzIEdyZWRsZXI7IHNwcmluZ0BpZXRmLm9yZzsgQWx2YXJvIFJldGFuYSAoYXJldGFuYSk7 IEpvaG4gRy4NCj4gU2N1ZGRlcjsgWWFrb3YgUmVraHRlcg0KPiDkuLvpopg6IFJlOiBbc3ByaW5n XSDnrZTlpI06IGRyYWZ0LWdyZWRsZXItc3ByaW5nLW1wbHMtMDUudHh0IGFzIFNQUklORyBXRw0K PiBkb2N1bWVudA0KPiANCj4gSWYgeW91ciBTUiBzZWdtZW50cyBhcmUgdG8gYmUgZW5naW5lZXJl ZCBieSBzZXQgb2YgU1IgaGVhZGVycyBmb3IgYSBnaXZlbiBGRUMNCj4gYW5kIGFueXdoZXJlIGlu IHRoZSBuZXR3b3JrIHlvdSB3aWxsIHN1ZGRlbmx5IGNob29zZSBMRFAgbGVhcm5lZCBsYWJlbCBm b3IgYQ0KPiBnaXZlbiBGRUMgdGhlIGZvcndhcmRpbmcgcmVzdWx0cyB3aWxsIGJlIHJhdGhlciBw b29yIGRvbid0IHlvdSB0aGluayA/DQo+IA0KPiByLg0KPiANCj4gT24gV2VkLCBNYXkgMjEsIDIw MTQgYXQgOTozMyBBTSwgWHV4aWFvaHUgPHh1eGlhb2h1QGh1YXdlaS5jb20+IHdyb3RlOg0KPiA+ IFJvYmVydCwNCj4gPg0KPiA+PiAtLS0tLemCruS7tuWOn+S7ti0tLS0tDQo+ID4+IOWPkeS7tuS6 ujogcnJhc3p1a0BnbWFpbC5jb20gW21haWx0bzpycmFzenVrQGdtYWlsLmNvbV0g5Luj6KGoIFJv YmVydA0KPiBSYXN6dWsNCj4gPj4g5Y+R6YCB5pe26Ze0OiAyMDE05bm0NeaciDIx5pelIDE1OjI1 DQo+ID4+IOaUtuS7tuS6ujogWHV4aWFvaHUNCj4gPj4g5oqE6YCBOiBIYW5uZXMgR3JlZGxlcjsg WWFrb3YgUmVraHRlcjsgc3ByaW5nQGlldGYub3JnOyBBbHZhcm8gUmV0YW5hDQo+ID4+IChhcmV0 YW5hKTsgSm9obiBHLiBTY3VkZGVyDQo+ID4+IOS4u+mimDogUmU6IFtzcHJpbmddIGRyYWZ0LWdy ZWRsZXItc3ByaW5nLW1wbHMtMDUudHh0IGFzIFNQUklORyBXRw0KPiA+PiBkb2N1bWVudA0KPiA+ Pg0KPiA+PiBYaWFvaHUsDQo+ID4+DQo+ID4+ID4gU2luY2UgdGhlcmUgYXJlIGp1c3QgbGFiZWwg ZGlzdHJpYnV0aW9uIHByb3RvY29scyB3aGljaCBkb24ndA0KPiA+PiA+IGFmZmVjdCB0aGUgcm91 dGUgc2VsZWN0aW9uIGF0IGFsbCwgd2h5IGRvIHlvdSBjYXJlIGFib3V0IHRoYXQNCj4gPj4gPiBj b25zaXN0ZW5jeSBhbW9uZw0KPiA+PiByb3V0ZXJzPw0KPiA+Pg0KPiA+PiBXZSBhcmUgdGFsa2lu ZyBhYm91dCBsYWJlbCBzZWxlY3Rpb24gYW5kIG5vdCByb3V0ZSBzZWxlY3Rpb24uDQo+ID4+DQo+ ID4+IFRoaXMgaXMgYWJvdXQgdGhlIHNhbWUgRkVDIHNvIHNhbWUgcm91dGUgaGVuY2Ugcm91dGUg c2VsZWN0aW9uIGRvZXMNCj4gPj4gbm90IGNvbWUgdG8gdGhlIHBpY3R1cmUuDQo+ID4NCj4gPiBT dXJlLiBUaGVuIHdoYXQncyB0aGUgcHJvYmxlbSBpZiB0aGVyZSBpcyBpbmNvbnNpc3RlbmN5IG9m IGxhYmVsIHNlbGVjdGlvbg0KPiBhbW9uZyByb3V0ZXJzIChlLmcuLCBzb21lIHJvdXRlcnMgcHJl ZmVyIGxhYmVsIGJpbmRpbmdzIGxlYXJudCBmcm9tIElTSVMgd2hpbGUNCj4gb3RoZXJzIHByZWZl ciBsYWJlbCBiaW5kaW5ncyBsZWFybnQgZnJvbSBMRFApPw0KPiA+DQo+ID4gQmVzdCByZWdhcmRz LA0KPiA+IFhpYW9odQ0KPiA+DQo+ID4+IFRoeCwNCj4gPj4gUi4NCj4gPiBfX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXw0KPiA+IHNwcmluZyBtYWlsaW5nIGxp c3QNCj4gPiBzcHJpbmdAaWV0Zi5vcmcNCj4gPiBodHRwczovL3d3dy5pZXRmLm9yZy9tYWlsbWFu L2xpc3RpbmZvL3NwcmluZw0K From nobody Wed May 21 01:12:03 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id C3D1C1A029E for ; 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h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type:content-transfer-encoding; bh=c6+gI0Jpu87UpfFckFRfPGe4FMKH2ugdN1Tf83zuWvs=; b=0JmFF/qdD/+feanWnx4l+1aBP9claR7jt3liyTTaW02+ij2mDLpm/80mIZSgxTfyOz twGSaNFvGSro0nkn57TsrzB/p4ClbLChV2WoxZs4+3WKny3tkGDb8bCv/6ztig7PkQqB xZ4QjhHV/ybkH4D0nxRggb+YBDuzcfufbOLa0B2sDQTvFfsuQu89oPy71YSJhMS3UEGG ZkQhlZ3Njaf5P1sTTbQ7TCV5znrHymRUWhLj30GJjsKgsqVp6zL6l/+aXs/gwIn9ntWy FcuQq0JbZ2EyirByXWPfPtu0y2h3T7FqlMspZqOvCwt2/RrydAf7yVTVHi0+LDTwIy49 /vSQ== MIME-Version: 1.0 X-Received: by 10.43.80.5 with SMTP id zs5mr15691788icb.72.1400659905187; Wed, 21 May 2014 01:11:45 -0700 (PDT) Sender: rraszuk@gmail.com Received: by 10.64.242.198 with HTTP; Wed, 21 May 2014 01:11:45 -0700 (PDT) In-Reply-To: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A8E1@NKGEML512-MBS.china.huawei.com> References: <201405161737.s4GHbmL60524@magenta.juniper.net> <20140520151856.GA11618@juniper.net> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A889@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A8A3@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A8E1@NKGEML512-MBS.china.huawei.com> Date: Wed, 21 May 2014 10:11:45 +0200 X-Google-Sender-Auth: 4WEZ3JRVs0TF_yGnVsaWMZ8X5F8 Message-ID: From: Robert Raszuk To: Xuxiaohu Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Archived-At: http://mailarchive.ietf.org/arch/msg/spring/6-VA9xPyCuSguf6iG5JOXsDN0p0 Cc: Yakov Rekhter , "spring@ietf.org" , "Alvaro Retana \(aretana\)" , "John G. Scudder" , Hannes Gredler Subject: Re: [spring] =?utf-8?b?562U5aSNOiDnrZTlpI06IGRyYWZ0LWdyZWRsZXItc3By?= =?utf-8?q?ing-mpls-05=2Etxt_as_SPRING_WG_document?= X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 May 2014 08:12:00 -0000 Xu, You do not get the concept of global (domian wide) label. You can't attach to a packet SR header with labels (SIDs) learned by ISIS and in the segment nodes use LDP learned labels for forwarding in your data plane. That's the issue with consistency of label for a given FEC distributed by more then one protocol within your domain. Best, R. On Wed, May 21, 2014 at 10:01 AM, Xuxiaohu wrote: > No, I don't think so. As long as a label for a given 32/ or 128/ FEC is a= ttached to a packet, no matter from whichever label distribution protocol t= his label is learnt, the packet would definitely be forwarded to the node i= dentified by that FEC along the shortest path. > > Could you give a concrete example to illustrate why the forwarding result= is rather poor? > > Best regards, > Xiaohu > >> -----=E9=82=AE=E4=BB=B6=E5=8E=9F=E4=BB=B6----- >> =E5=8F=91=E4=BB=B6=E4=BA=BA: rraszuk@gmail.com [mailto:rraszuk@gmail.com= ] =E4=BB=A3=E8=A1=A8 Robert Raszuk >> =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2014=E5=B9=B45=E6=9C=8821=E6=97=A5= 15:41 >> =E6=94=B6=E4=BB=B6=E4=BA=BA: Xuxiaohu >> =E6=8A=84=E9=80=81: Hannes Gredler; spring@ietf.org; Alvaro Retana (aret= ana); John G. >> Scudder; Yakov Rekhter >> =E4=B8=BB=E9=A2=98: Re: [spring] =E7=AD=94=E5=A4=8D: draft-gredler-sprin= g-mpls-05.txt as SPRING WG >> document >> >> If your SR segments are to be engineered by set of SR headers for a give= n FEC >> and anywhere in the network you will suddenly choose LDP learned label f= or a >> given FEC the forwarding results will be rather poor don't you think ? >> >> r. >> >> On Wed, May 21, 2014 at 9:33 AM, Xuxiaohu wrote: >> > Robert, >> > >> >> -----=E9=82=AE=E4=BB=B6=E5=8E=9F=E4=BB=B6----- >> >> =E5=8F=91=E4=BB=B6=E4=BA=BA: rraszuk@gmail.com [mailto:rraszuk@gmail.= com] =E4=BB=A3=E8=A1=A8 Robert >> Raszuk >> >> =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2014=E5=B9=B45=E6=9C=8821=E6=97= =A5 15:25 >> >> =E6=94=B6=E4=BB=B6=E4=BA=BA: Xuxiaohu >> >> =E6=8A=84=E9=80=81: Hannes Gredler; Yakov Rekhter; spring@ietf.org; A= lvaro Retana >> >> (aretana); John G. Scudder >> >> =E4=B8=BB=E9=A2=98: Re: [spring] draft-gredler-spring-mpls-05.txt as = SPRING WG >> >> document >> >> >> >> Xiaohu, >> >> >> >> > Since there are just label distribution protocols which don't >> >> > affect the route selection at all, why do you care about that >> >> > consistency among >> >> routers? >> >> >> >> We are talking about label selection and not route selection. >> >> >> >> This is about the same FEC so same route hence route selection does >> >> not come to the picture. >> > >> > Sure. Then what's the problem if there is inconsistency of label selec= tion >> among routers (e.g., some routers prefer label bindings learnt from ISIS= while >> others prefer label bindings learnt from LDP)? >> > >> > Best regards, >> > Xiaohu >> > >> >> Thx, >> >> R. >> > _______________________________________________ >> > spring mailing list >> > spring@ietf.org >> > https://www.ietf.org/mailman/listinfo/spring > _______________________________________________ > spring mailing list > spring@ietf.org > https://www.ietf.org/mailman/listinfo/spring From nobody Wed May 21 01:38:56 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 73DDE1A0742 for ; Wed, 21 May 2014 01:38:54 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.552 X-Spam-Level: X-Spam-Status: No, score=-4.552 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, MIME_8BIT_HEADER=0.3, RCVD_IN_DNSWL_MED=-2.3, RP_MATCHES_RCVD=-0.651, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id bOARjEPRxF03 for ; Wed, 21 May 2014 01:38:53 -0700 (PDT) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 7D8F31A02F4 for ; Wed, 21 May 2014 01:38:52 -0700 (PDT) Received: from 172.18.7.190 (EHLO lhreml203-edg.china.huawei.com) ([172.18.7.190]) by lhrrg02-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id BEJ45936; Wed, 21 May 2014 08:38:50 +0000 (GMT) Received: from LHREML402-HUB.china.huawei.com (10.201.5.241) by lhreml203-edg.huawei.com (172.18.7.221) with Microsoft SMTP Server (TLS) id 14.3.158.1; Wed, 21 May 2014 09:38:15 +0100 Received: from nkgeml409-hub.china.huawei.com (10.98.56.40) by lhreml402-hub.china.huawei.com (10.201.5.241) with Microsoft SMTP Server (TLS) id 14.3.158.1; Wed, 21 May 2014 09:38:21 +0100 Received: from NKGEML512-MBS.china.huawei.com ([169.254.8.62]) by nkgeml409-hub.china.huawei.com ([10.98.56.40]) with mapi id 14.03.0158.001; Wed, 21 May 2014 16:38:18 +0800 From: Xuxiaohu To: Robert Raszuk Thread-Topic: =?utf-8?B?W3NwcmluZ10g562U5aSNOiDnrZTlpI06IGRyYWZ0LWdyZWRsZXItc3ByaW5n?= =?utf-8?Q?-mpls-05.txt_as_SPRING_WG_document?= Thread-Index: AQHPdMxm1Ms/rWZIokiBTDt2babDG5tKsb4Q Date: Wed, 21 May 2014 08:38:18 +0000 Message-ID: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A907@NKGEML512-MBS.china.huawei.com> References: <201405161737.s4GHbmL60524@magenta.juniper.net> <20140520151856.GA11618@juniper.net> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A889@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A8A3@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A8E1@NKGEML512-MBS.china.huawei.com> In-Reply-To: Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.111.98.134] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-CFilter-Loop: Reflected Archived-At: http://mailarchive.ietf.org/arch/msg/spring/iXX4AC15mqYKXtAC9d1miEeRTMI Cc: Yakov Rekhter , "spring@ietf.org" , "Alvaro Retana \(aretana\)" , "John G. Scudder" , Hannes Gredler Subject: [spring] =?utf-8?b?562U5aSNOiAg562U5aSNOiDnrZTlpI06IGRyYWZ0LWdy?= =?utf-8?q?edler-spring-mpls-05=2Etxt_as_SPRING_WG_document?= X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 May 2014 08:38:54 -0000 DQoNCj4gLS0tLS3pgq7ku7bljp/ku7YtLS0tLQ0KPiDlj5Hku7bkuro6IHJyYXN6dWtAZ21haWwu Y29tIFttYWlsdG86cnJhc3p1a0BnbWFpbC5jb21dIOS7o+ihqCBSb2JlcnQgUmFzenVrDQo+IOWP kemAgeaXtumXtDogMjAxNOW5tDXmnIgyMeaXpSAxNjoxMg0KPiDmlLbku7bkuro6IFh1eGlhb2h1 DQo+IOaKhOmAgTogWWFrb3YgUmVraHRlcjsgSGFubmVzIEdyZWRsZXI7IHNwcmluZ0BpZXRmLm9y ZzsgSm9obiBHLiBTY3VkZGVyOyBBbHZhcm8NCj4gUmV0YW5hIChhcmV0YW5hKQ0KPiDkuLvpopg6 IFJlOiBbc3ByaW5nXSDnrZTlpI06IOetlOWkjTogZHJhZnQtZ3JlZGxlci1zcHJpbmctbXBscy0w NS50eHQgYXMgU1BSSU5HIFdHDQo+IGRvY3VtZW50DQo+IA0KPiBYdSwNCj4gDQo+IFlvdSBkbyBu b3QgZ2V0IHRoZSBjb25jZXB0IG9mIGdsb2JhbCAoZG9taWFuIHdpZGUpIGxhYmVsLg0KDQpNYXli ZS4gDQoNCj4gWW91IGNhbid0IGF0dGFjaCB0byBhIHBhY2tldCBTUiBoZWFkZXIgd2l0aCBsYWJl bHMgKFNJRHMpIGxlYXJuZWQgYnkgSVNJUyBhbmQgaW4NCj4gdGhlIHNlZ21lbnQgbm9kZXMgdXNl IExEUCBsZWFybmVkIGxhYmVscyBmb3IgZm9yd2FyZGluZyBpbiB5b3VyIGRhdGEgcGxhbmUuDQoN 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ID4gaHR0cHM6Ly93d3cuaWV0Zi5vcmcvbWFpbG1hbi9saXN0aW5mby9zcHJpbmcNCg== From nobody Wed May 21 06:07:27 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 34F561A067F for ; Wed, 21 May 2014 06:07:25 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.601 X-Spam-Level: X-Spam-Status: No, score=-2.601 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id cg4Yla5_6xSF for ; Wed, 21 May 2014 06:07:22 -0700 (PDT) Received: from na01-bl2-obe.outbound.protection.outlook.com (mail-bl2lp0211.outbound.protection.outlook.com [207.46.163.211]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 0FFE71A068A for ; Wed, 21 May 2014 06:07:21 -0700 (PDT) Received: from BL2PR05MB210.namprd05.prod.outlook.com (10.242.198.145) by CO2PR05MB729.namprd05.prod.outlook.com (10.141.228.12) with Microsoft SMTP Server (TLS) id 15.0.944.11; Wed, 21 May 2014 13:07:19 +0000 Received: from BL2PR05MB210.namprd05.prod.outlook.com ([169.254.6.51]) by BL2PR05MB210.namprd05.prod.outlook.com ([169.254.6.51]) with mapi id 15.00.0944.000; Wed, 21 May 2014 13:07:18 +0000 From: Yakov Rekhter To: Robert Raszuk , Hannes Gredler Thread-Topic: [spring] draft-gredler-spring-mpls-05.txt as SPRING WG document Thread-Index: AQHPcS3QFSV0GYUfsEiQT8uhMi06iptDhP4AgAYWSACAAAJAgIABanlA Date: Wed, 21 May 2014 13:07:17 +0000 Message-ID: <5e0671435e2040e7995f0d0de5995301@BL2PR05MB210.namprd05.prod.outlook.com> References: <201405161737.s4GHbmL60524@magenta.juniper.net> <20140520151856.GA11618@juniper.net> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: 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http://mailarchive.ietf.org/arch/msg/spring/vDKY4q00PpPNu_p_-1xEOUpf5vw Cc: "Alvaro Retana \(aretana\)" , "spring@ietf.org" , John Scudder Subject: Re: [spring] draft-gredler-spring-mpls-05.txt as SPRING WG document X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." 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hv6mr13861296igb.9.1400679919140; Wed, 21 May 2014 06:45:19 -0700 (PDT) Sender: rraszuk@gmail.com Received: by 10.64.242.198 with HTTP; Wed, 21 May 2014 06:45:18 -0700 (PDT) In-Reply-To: <5e0671435e2040e7995f0d0de5995301@BL2PR05MB210.namprd05.prod.outlook.com> References: <201405161737.s4GHbmL60524@magenta.juniper.net> <20140520151856.GA11618@juniper.net> <5e0671435e2040e7995f0d0de5995301@BL2PR05MB210.namprd05.prod.outlook.com> Date: Wed, 21 May 2014 15:45:18 +0200 X-Google-Sender-Auth: IapljVa51Q6eRJYa27n_ZVIk-ZY Message-ID: From: Robert Raszuk To: Yakov Rekhter Content-Type: text/plain; charset=UTF-8 Archived-At: http://mailarchive.ietf.org/arch/msg/spring/dvu1oVKOZsHs0Fv6SQw-CdK40t8 Cc: Hannes Gredler , "spring@ietf.org" , John Scudder , "Alvaro Retana \(aretana\)" Subject: Re: [spring] draft-gredler-spring-mpls-05.txt as SPRING WG document X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 May 2014 13:45:22 -0000 Hi Yakov, Yes IMO this would be good addition. As to the default example perhaps it would be good to make it complete in a sense of adding label-bgp. We could say: In the scenario where a router obtains label binding for a given FEC from all (targeted) LDP, Label-BGP and IS-IS/OSPF, the default behavior RECOMMENDED in this document is to prefer the one obtained from (targeted) LDP followed by ISIS-OSPF one. An implementation MUST support the ability to override the default behavior via configuration. Thx, R. On Wed, May 21, 2014 at 3:07 PM, Yakov Rekhter wrote: > Robert, > >> >> Hi Hannes & Yakov, >> >> Thank you for your opinion on this. >> >> My major concern is consistency among routers especially in large >> network. >> >> While indeed one may say that this is a local policy matter the >> question is can we do better then that especially where we are coming >> with new label distribution protocols. >> >> Also implementations need to somehow define such policy and perhaps >> setting a reference to a recommended order in RFC could be a good set >> of defaults ? >> >> Otherwise likely Murphy's law will apply :) > > How about if I'll add the following to the draft: > > > When a router obtains label binding for a given FEC from more than > one label distribution protocol (e.g., one binding from targeted LDP > and another from IS-IS/OSPF), deciding which label binding to use > is a matter of policy local to the router. > > In the scenario where a router obtains label binding for a given FEC > from both (targeted) LDP and IS-IS/OSPF, the default behavior > RECOMMENDED in this document is to prefer the one obtained > from (targeted) LDP. An implementation MUST support the > ability to override the default behavior via configuration. > > Yakov. > >> >> Cheers, >> R. >> >> >> On Tue, May 20, 2014 at 5:18 PM, Hannes Gredler >> wrote: >> > hi robert, >> > >> > On Fri, May 16, 2014 at 08:21:38PM +0200, Robert Raszuk wrote: >> > | Hi, >> > | >> > | Two comments on this document. >> > | >> > | >> > | Question: >> > | >> > | Assume there is label binding received for a given FEC from/by >> > | multiple protocols. Which one should be chosen by the LSR to be >> used >> > | in data plane? Choosing wrong one may jeoparadise the hope of >> > | stitching. >> > >> > i'd assume that an implementation supporting multiple >> > label-distribution protocols, has an internal tie-breaking scheme and >> > install LSPs for a fiven FEC only from the highest ranking protocol. >> > >> > | Is consistent manual configuration across multiple LSRs an answer ? >> > >> > possibly; - see below; >> > >> > | If so document should mention that. Otherwise analogy of admin >> > | distance for FECs should be proposed. >> > >> > explicitly mentioning that there is a plurality of label-binding >> > protocols seems unecessary to me. you are right insofar as rfc3031 >> > does *not* mention a tie-breaking amon protocols and yet there are >> > implemntations who support more than one concurrent label- >> distribution protocol. >> > >> > | Example: Is FEC distributed by OSPF more important then FEC >> > | distributed by targetted LDP session in the same OSPF domain ? >> > >> > that is an implementation choice; hopefully the administrative >> > preference is user configurable. >> > >> > | On the other hand if this case is considered an error a >> > | corresponding error handling section may be required. >> > | >> > | >> > | Recommendation: >> > | >> > | s/distirbution/distribution/ >> > | >> > | >> > | Best regards, >> > | R. >> > | >> > | >> > | On Fri, May 16, 2014 at 7:37 PM, Yakov Rekhter >> wrote: >> > | > Alvaro and John, >> > | > >> > | > The authors of draft-gredler-spring-mpls-05.txt would like to ask >> > | > SPRING WG to accept this draft as SPRING WG document. >> > | > >> > | > Yakov. >> > | > ------- Forwarded Message >> > | > >> > | > Date: Fri, 16 May 2014 10:33:51 -0700 >> > | > From: >> > | > To: >> > | > Subject: I-D Action: draft-gredler-spring-mpls-05.txt >> > | > >> > | > >> > | > A New Internet-Draft is available from the on-line Internet- >> Drafts directories. >> > | > >> > | > >> > | > Title : Supporting Source/Explicitly Routed >> Tunnels via Stack >> > | > ed LSPs >> > | > Authors : Hannes Gredler >> > | > Yakov Rekhter >> > | > Luay Jalil >> > | > Sriganesh Kini >> > | > Xiaohu Xu >> > | > Filename : draft-gredler-spring-mpls-05.txt >> > | > Pages : 17 >> > | > Date : 2014-05-16 >> > | > >> > | > Abstract: >> > | > This document describes how source/explicitly routed tunnels >> could be >> > | > realized using stacked Label Switched Paths (LSPs). >> > | > >> > | > This document also describes how use of IS-IS/OSPF as a label >> > | > distribution protocol fits into the MPLS architecture. >> > | > >> > | > >> > | > The IETF datatracker status page for this draft is: >> > | > https://datatracker.ietf.org/doc/draft-gredler-spring-mpls/ >> > | > >> > | > There's also a htmlized version available at: >> > | > http://tools.ietf.org/html/draft-gredler-spring-mpls-05 >> > | > >> > | > A diff from the previous version is available at: >> > | > http://www.ietf.org/rfcdiff?url2=draft-gredler-spring-mpls-05 >> > | > >> > | > >> > | > 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/ >> > | > >> > | > _______________________________________________ >> > | > I-D-Announce mailing list >> > | > I-D-Announce@ietf.org >> > | > https://www.ietf.org/mailman/listinfo/i-d-announce >> > | > Internet-Draft directories: http://www.ietf.org/shadow.html or >> > | > ftp://ftp.ietf.org/ietf/1shadow-sites.txt >> > | > >> > | > ------- End of Forwarded Message >> > | > >> > | > _______________________________________________ >> > | > spring mailing list >> > | > spring@ietf.org >> > | > https://www.ietf.org/mailman/listinfo/spring >> > | >> > | _______________________________________________ >> > | spring mailing list >> > | spring@ietf.org >> > | https://www.ietf.org/mailman/listinfo/spring > _______________________________________________ > spring mailing list > spring@ietf.org > https://www.ietf.org/mailman/listinfo/spring From nobody Wed May 21 07:07:36 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 8E45F1A069C for ; 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a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=oTXWdQymPxF9yLEbjS314BS1/oZ5X3y894eZv0huRnI=; b=RLkySsQEfcsC1cnWs76H0fqtSk30faNVnVtnsoo6tWNdpC2QAju0e3pWjPKK4LhtIf 7LCoInvonU7jY751vGN0FoTQOjbIOX6QyLjJeE3p2el+p25dWsETzyx89w7MoPZp5FZJ +0XzoXcVsc7BjYgztsc9zqRa8fL/Hk85s38TJKi/hhqXXWxgkejdVFiSTuMMVCu9x0Un tf5/bY3cn4h48KsDCKKGE7U1W5Y5fRzCupdIBulWmNwkqU4nrrWS64SoyL5SndXoS39B WMxHe8dIgOVb1UwbJM/sHsN8k0yV8YRD4KWg560yUH38NMc7AtlRiZtE72CAhd9JrY5d bj/g== MIME-Version: 1.0 X-Received: by 10.42.52.199 with SMTP id k7mr48359553icg.4.1400681250837; Wed, 21 May 2014 07:07:30 -0700 (PDT) Sender: rraszuk@gmail.com Received: by 10.64.242.198 with HTTP; Wed, 21 May 2014 07:07:30 -0700 (PDT) In-Reply-To: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A907@NKGEML512-MBS.china.huawei.com> References: <201405161737.s4GHbmL60524@magenta.juniper.net> <20140520151856.GA11618@juniper.net> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A889@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A8A3@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A8E1@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A907@NKGEML512-MBS.china.huawei.com> Date: Wed, 21 May 2014 16:07:30 +0200 X-Google-Sender-Auth: M1OV06UihmfJgyPGYWeM9SbYPuE Message-ID: From: Robert Raszuk To: Xuxiaohu Content-Type: multipart/mixed; boundary=485b397dd6096748fd04f9e984f8 Archived-At: http://mailarchive.ietf.org/arch/msg/spring/smGG52h7uv0jGNlnH0AiGdaWpBw Cc: Yakov Rekhter , "spring@ietf.org" , Hannes Gredler , "John G. Scudder" , "Alvaro Retana \(aretana\)" Subject: Re: [spring] =?utf-8?b?562U5aSNOiDnrZTlpI06IOetlOWkjTogZHJhZnQtZ3Jl?= =?utf-8?q?dler-spring-mpls-05=2Etxt_as_SPRING_WG_document?= X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 May 2014 14:07:33 -0000 --485b397dd6096748fd04f9e984f8 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hi Xu, Sure .. please see attached CONCRETE example. Best, R. On Wed, May 21, 2014 at 10:38 AM, Xuxiaohu wrote: > > >> -----=E9=82=AE=E4=BB=B6=E5=8E=9F=E4=BB=B6----- >> =E5=8F=91=E4=BB=B6=E4=BA=BA: rraszuk@gmail.com [mailto:rraszuk@gmail.com= ] =E4=BB=A3=E8=A1=A8 Robert Raszuk >> =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2014=E5=B9=B45=E6=9C=8821=E6=97=A5= 16:12 >> =E6=94=B6=E4=BB=B6=E4=BA=BA: Xuxiaohu >> =E6=8A=84=E9=80=81: Yakov Rekhter; Hannes Gredler; spring@ietf.org; John= G. Scudder; Alvaro >> Retana (aretana) >> =E4=B8=BB=E9=A2=98: Re: [spring] =E7=AD=94=E5=A4=8D: =E7=AD=94=E5=A4=8D:= draft-gredler-spring-mpls-05.txt as SPRING WG >> document >> >> Xu, >> >> You do not get the concept of global (domian wide) label. > > Maybe. > >> You can't attach to a packet SR header with labels (SIDs) learned by ISI= S and in >> the segment nodes use LDP learned labels for forwarding in your data pla= ne. > > Why can't? Please give a CONCRETE example and then assert who don=E2=80= =99t get the concept of MPLS and SR:) > > Best regards, > Xiaohu > >> That's the issue with consistency of label for a given FEC distributed b= y more >> then one protocol within your domain. >> >> Best, >> R. >> >> On Wed, May 21, 2014 at 10:01 AM, Xuxiaohu >> wrote: >> > No, I don't think so. As long as a label for a given 32/ or 128/ FEC i= s attached to >> a packet, no matter from whichever label distribution protocol this labe= l is learnt, >> the packet would definitely be forwarded to the node identified by that = FEC >> along the shortest path. >> > >> > Could you give a concrete example to illustrate why the forwarding res= ult is >> rather poor? >> > >> > Best regards, >> > Xiaohu >> > >> >> -----=E9=82=AE=E4=BB=B6=E5=8E=9F=E4=BB=B6----- >> >> =E5=8F=91=E4=BB=B6=E4=BA=BA: rraszuk@gmail.com [mailto:rraszuk@gmail.= com] =E4=BB=A3=E8=A1=A8 Robert >> Raszuk >> >> =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2014=E5=B9=B45=E6=9C=8821=E6=97= =A5 15:41 >> >> =E6=94=B6=E4=BB=B6=E4=BA=BA: Xuxiaohu >> >> =E6=8A=84=E9=80=81: Hannes Gredler; spring@ietf.org; Alvaro Retana (a= retana); John G. >> >> Scudder; Yakov Rekhter >> >> =E4=B8=BB=E9=A2=98: Re: [spring] =E7=AD=94=E5=A4=8D: draft-gredler-sp= ring-mpls-05.txt as SPRING WG >> >> document >> >> >> >> If your SR segments are to be engineered by set of SR headers for a >> >> given FEC and anywhere in the network you will suddenly choose LDP >> >> learned label for a given FEC the forwarding results will be rather p= oor don't >> you think ? >> >> >> >> r. >> >> >> >> On Wed, May 21, 2014 at 9:33 AM, Xuxiaohu >> wrote: >> >> > Robert, >> >> > >> >> >> -----=E9=82=AE=E4=BB=B6=E5=8E=9F=E4=BB=B6----- >> >> >> =E5=8F=91=E4=BB=B6=E4=BA=BA: rraszuk@gmail.com [mailto:rraszuk@gma= il.com] =E4=BB=A3=E8=A1=A8 Robert >> >> Raszuk >> >> >> =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2014=E5=B9=B45=E6=9C=8821=E6= =97=A5 15:25 >> >> >> =E6=94=B6=E4=BB=B6=E4=BA=BA: Xuxiaohu >> >> >> =E6=8A=84=E9=80=81: Hannes Gredler; Yakov Rekhter; spring@ietf.org= ; Alvaro Retana >> >> >> (aretana); John G. Scudder >> >> >> =E4=B8=BB=E9=A2=98: Re: [spring] draft-gredler-spring-mpls-05.txt = as SPRING WG >> >> >> document >> >> >> >> >> >> Xiaohu, >> >> >> >> >> >> > Since there are just label distribution protocols which don't >> >> >> > affect the route selection at all, why do you care about that >> >> >> > consistency among >> >> >> routers? >> >> >> >> >> >> We are talking about label selection and not route selection. >> >> >> >> >> >> This is about the same FEC so same route hence route selection >> >> >> does not come to the picture. >> >> > >> >> > Sure. Then what's the problem if there is inconsistency of label >> >> > selection >> >> among routers (e.g., some routers prefer label bindings learnt from >> >> ISIS while others prefer label bindings learnt from LDP)? >> >> > >> >> > Best regards, >> >> > Xiaohu >> >> > >> >> >> Thx, >> >> >> R. >> >> > _______________________________________________ >> >> > spring mailing list >> >> > spring@ietf.org >> >> > https://www.ietf.org/mailman/listinfo/spring >> > _______________________________________________ >> > spring mailing list >> > spring@ietf.org >> > https://www.ietf.org/mailman/listinfo/spring > _______________________________________________ > spring mailing list > spring@ietf.org > https://www.ietf.org/mailman/listinfo/spring --485b397dd6096748fd04f9e984f8 Content-Type: application/pdf; name="Xu.pdf" Content-Disposition: attachment; filename="Xu.pdf" Content-Transfer-Encoding: base64 X-Attachment-Id: f_hvgpg55w0 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--485b397dd6096748fd04f9e984f8-- From nobody Wed May 21 09:29:32 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 786081A084A for ; Wed, 21 May 2014 09:29:30 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.601 X-Spam-Level: X-Spam-Status: No, score=-2.601 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 2Se8LRNRdmus for ; Wed, 21 May 2014 09:29:28 -0700 (PDT) Received: from na01-bl2-obe.outbound.protection.outlook.com (mail-bl2lp0204.outbound.protection.outlook.com [207.46.163.204]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 8B9581A0840 for ; Wed, 21 May 2014 09:29:28 -0700 (PDT) Received: from BL2PR05MB210.namprd05.prod.outlook.com (10.242.198.145) by BL2PR05MB209.namprd05.prod.outlook.com (10.242.198.142) with Microsoft SMTP Server (TLS) id 15.0.944.11; Wed, 21 May 2014 16:29:21 +0000 Received: from BL2PR05MB210.namprd05.prod.outlook.com ([169.254.6.51]) by BL2PR05MB210.namprd05.prod.outlook.com ([169.254.6.51]) with mapi id 15.00.0944.000; Wed, 21 May 2014 16:29:20 +0000 From: Yakov Rekhter To: "spring@ietf.org" Thread-Topic: New Version Notification for draft-gredler-spring-mpls-06.txt Thread-Index: AQHPdQdjsN/bwtCwNEa51XnrBKxCuJtLOUeQ Date: Wed, 21 May 2014 16:29:19 +0000 Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [66.129.239.14] x-forefront-prvs: 0218A015FA x-forefront-antispam-report: SFV:NSPM; SFS:(6009001)(428001)(13464003)(199002)(189002)(377454003)(377424004)(79102001)(50986999)(46102001)(101416001)(92566001)(15202345003)(86362001)(99396002)(74316001)(76576001)(54356999)(15975445006)(76482001)(31966008)(2656002)(87936001)(33646001)(77982001)(81542001)(19580395003)(4396001)(66066001)(83072002)(81342001)(64706001)(21056001)(74502001)(85852003)(20776003)(80022001)(74662001)(99286001)(19580405001)(24736002); DIR:OUT; SFP:; SCL:1; SRVR:BL2PR05MB209; H:BL2PR05MB210.namprd05.prod.outlook.com; FPR:; MLV:sfv; PTR:InfoNoRecords; A:1; MX:1; LANG:en; received-spf: None (: juniper.net does not designate permitted sender hosts) authentication-results: spf=none (sender IP is ) smtp.mailfrom=yakov@juniper.net; Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: juniper.net Archived-At: http://mailarchive.ietf.org/arch/msg/spring/bYq8CZeJNymwtEr8ggmvDTzh3ZE Subject: [spring] FW: New Version Notification for 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List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 May 2014 16:29:30 -0000 Rm9sa3MsDQoNClRoZSAtMDYgdmVyc2lvbiBpbmNvcnBvcmF0ZXMgbmV3IHRleHQgdG8gYWRkcmVz cyB0aGUgY29tbWVudHMgcmVjZWl2ZWQgZnJvbSBSb2JlcnQuDQoNCllha292Lg0KLS0tLS1Pcmln aW5hbCBNZXNzYWdlLS0tLS0NCkZyb206IGludGVybmV0LWRyYWZ0c0BpZXRmLm9yZyBbbWFpbHRv OmludGVybmV0LWRyYWZ0c0BpZXRmLm9yZ10gDQpTZW50OiBXZWRuZXNkYXksIE1heSAyMSwgMjAx NCAxMToxNCBBTQ0KVG86IFNyaWdhbmVzaCBLaW5pOyBYaWFvaHUgWHU7IFhpYW9odSBYdTsgSGFu bmVzIEdyZWRsZXI7IEx1YXkgSmFsaWw7IFlha292IFJla2h0ZXI7IFlha292IFJla2h0ZXI7IFNy aWdhbmVzaCBLaW5pOyBIYW5uZXMgR3JlZGxlcjsgTHVheSBKYWxpbA0KU3ViamVjdDogTmV3IFZl cnNpb24gTm90aWZpY2F0aW9uIGZvciBkcmFmdC1ncmVkbGVyLXNwcmluZy1tcGxzLTA2LnR4dA0K DQoNCkEgbmV3IHZlcnNpb24gb2YgSS1ELCBkcmFmdC1ncmVkbGVyLXNwcmluZy1tcGxzLTA2LnR4 dCBoYXMgYmVlbiBzdWNjZXNzZnVsbHkgc3VibWl0dGVkIGJ5IFlha292IFJla2h0ZXIgYW5kIHBv c3RlZCB0byB0aGUgSUVURiByZXBvc2l0b3J5Lg0KDQpOYW1lOgkJZHJhZnQtZ3JlZGxlci1zcHJp bmctbXBscw0KUmV2aXNpb246CTA2DQpUaXRsZToJCVN1cHBvcnRpbmcgU291cmNlL0V4cGxpY2l0 bHkgUm91dGVkIFR1bm5lbHMgdmlhIFN0YWNrZWQgTFNQcw0KRG9jdW1lbnQgZGF0ZToJMjAxNC0w NS0yMQ0KR3JvdXA6CQlJbmRpdmlkdWFsIFN1Ym1pc3Npb24NClBhZ2VzOgkJMTgNClVSTDogICAg ICAgICAgICBodHRwOi8vd3d3LmlldGYub3JnL2ludGVybmV0LWRyYWZ0cy9kcmFmdC1ncmVkbGVy LXNwcmluZy1tcGxzLTA2LnR4dA0KU3RhdHVzOiAgICAgICAgIGh0dHBzOi8vZGF0YXRyYWNrZXIu aWV0Zi5vcmcvZG9jL2RyYWZ0LWdyZWRsZXItc3ByaW5nLW1wbHMvDQpIdG1saXplZDogICAgICAg aHR0cDovL3Rvb2xzLmlldGYub3JnL2h0bWwvZHJhZnQtZ3JlZGxlci1zcHJpbmctbXBscy0wNg0K RGlmZjogICAgICAgICAgIGh0dHA6Ly93d3cuaWV0Zi5vcmcvcmZjZGlmZj91cmwyPWRyYWZ0LWdy ZWRsZXItc3ByaW5nLW1wbHMtMDYNCg0KQWJzdHJhY3Q6DQogICBUaGlzIGRvY3VtZW50IGRlc2Ny aWJlcyBob3cgc291cmNlL2V4cGxpY2l0bHkgcm91dGVkIHR1bm5lbHMgY291bGQgYmUNCiAgIHJl YWxpemVkIHVzaW5nIHN0YWNrZWQgTGFiZWwgU3dpdGNoZWQgUGF0aHMgKExTUHMpLg0KDQogICBU aGlzIGRvY3VtZW50IGFsc28gZGVzY3JpYmVzIGhvdyB1c2Ugb2YgSVMtSVMvT1NQRiBhcyBhIGxh YmVsDQogICBkaXN0cmlidXRpb24gcHJvdG9jb2wgZml0cyBpbnRvIHRoZSBNUExTIGFyY2hpdGVj dHVyZS4NCg0KICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIA0KDQoNClBsZWFzZSBub3RlIHRoYXQg aXQgbWF5IHRha2UgYSBjb3VwbGUgb2YgbWludXRlcyBmcm9tIHRoZSB0aW1lIG9mIHN1Ym1pc3Np b24gdW50aWwgdGhlIGh0bWxpemVkIHZlcnNpb24gYW5kIGRpZmYgYXJlIGF2YWlsYWJsZSBhdCB0 b29scy5pZXRmLm9yZy4NCg0KVGhlIElFVEYgU2VjcmV0YXJpYXQNCg0K From nobody Wed May 21 12:05:24 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id B4C6C1A06EE for ; Wed, 21 May 2014 12:05:23 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.6 X-Spam-Level: X-Spam-Status: No, score=-4.6 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, MANGLED_EXTNSN=2.3, RCVD_IN_DNSWL_HI=-5] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id NcncqS5MyHDb for ; Wed, 21 May 2014 12:05:20 -0700 (PDT) Received: from hoemail1.alcatel.com (hoemail1.alcatel.com [192.160.6.148]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id E06EA1A0705 for ; Wed, 21 May 2014 12:05:18 -0700 (PDT) Received: from fr711usmtp1.zeu.alcatel-lucent.com (h135-239-2-122.lucent.com [135.239.2.122]) by hoemail1.alcatel.com (8.13.8/IER-o) with ESMTP id s4LJ5EsX007297 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 21 May 2014 14:05:15 -0500 (CDT) Received: from FR711WXCHHUB01.zeu.alcatel-lucent.com (fr711wxchhub01.zeu.alcatel-lucent.com [135.239.2.111]) by fr711usmtp1.zeu.alcatel-lucent.com (GMO) with ESMTP id s4LJ5DFI028046 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=FAIL); Wed, 21 May 2014 21:05:13 +0200 Received: from FR711WXCHMBA07.zeu.alcatel-lucent.com ([169.254.3.14]) by FR711WXCHHUB01.zeu.alcatel-lucent.com ([135.239.2.111]) with mapi id 14.02.0247.003; Wed, 21 May 2014 21:05:13 +0200 From: "Henderickx, Wim (Wim)" To: "Stefano Previdi (sprevidi)" , " ietf.org" , "Alvaro Retana (aretana)" , "John G. Scudder" Thread-Topic: [spring] Segment Routing Drafts Thread-Index: AQHPdSeYOwASo4aoKEad2/HPBE8igg== Date: Wed, 21 May 2014 19:05:13 +0000 Message-ID: Accept-Language: nl-BE, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/14.4.1.140326 x-originating-ip: [135.239.27.38] Content-Type: text/plain; charset="us-ascii" Content-ID: <0DE51201CD4D394FA43DC22D4270CFD5@exchange.lucent.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Archived-At: http://mailarchive.ietf.org/arch/msg/spring/3jYJ4mytxodHTBnJUUne9mxHvyo Subject: Re: [spring] Segment Routing Drafts X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 May 2014 19:05:23 -0000 These documents have been going through multiple reviews and are ready to ask for WG adoption afais. On 20/05/14 11:00, "Stefano Previdi (sprevidi)" wrote: >Dear WG members and co-chairs, > >after the adoption of draft-ietf-spring-problem-statement I'd like to >submit=20 >to your consideration the following documents that has been presented >already=20 >at multiple occasions (IETF87, IETF88 and IETF89): > >1.=20 >http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-use-cases >-00 >The WG already expressed consensus and support to the document during >IETF88 but >its adoption to WG item has been deferred due to the work on the problem >statement draft.=20 > >2. http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-01 >This document is the base description of the SR technology and >terminology. It=20 >has updated to the latest state of the agreement on SR from all the >co-authors=20 >(vendors and operators). The draft has been simplified and focuses on the >SR terminology and applicability to existing dataplanes. It clearly >describes=20 >how SR fits within the MPLS architecture and IPv6 architecture. > >3.=20 >http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-mpls-01 >The document describes the instantiation of SR on the MPLS dataplane. The >draft has been updated with some illustration examples so to show how SR >operates on top of MPLS and how MPLS dataplane is used "as is", i.e., >without=20 >any modification. > >4.=20 >http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-ldp-inter >op-01 >This document describes the interoperability between SR and LDP in order >to=20 >ease gradual deployments and co-existence between SR and legacy LDP >control=20 >plane. > >5.=20 >http://tools.ietf.org/html/draft-francois-spring-segment-routing-ti-lfa-00 >This document outlines the SR solution for a Topology Independent LFA >strategy. >It addresses the use case and requirement described in >draft-ietf-spring-resiliency-use-cases-00 > >As a reminder, Segment Routing protocol extensions are described in: >. http://tools.ietf.org/html/draft-ietf-isis-segment-routing-extensions-00 > WG Item in ISIS working group >.=20 >http://tools.ietf.org/html/draft-psenak-ospf-segment-routing-extensions-04 >=20 >http://tools.ietf.org/html/draft-psenak-ospf-segment-routing-ospfv3-extens >ion-01 > in OSPF working group >. http://tools.ietf.org/html/draft-sivabalan-pce-segment-routing-02 > in PCE working group > >The scope of this email is to bring these documents to your attention in >order=20 >to validate the consensus and support the authors require prior to >request=20 >their adoption as WG items to the WG-chairs. > > >Thanks. >s. > > > > > >_______________________________________________ >spring mailing list >spring@ietf.org >https://www.ietf.org/mailman/listinfo/spring From nobody Wed May 21 12:07:20 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 31C211A052E for ; Wed, 21 May 2014 12:07:18 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 0.399 X-Spam-Level: X-Spam-Status: No, score=0.399 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, MANGLED_EXTNSN=2.3, SPF_PASS=-0.001] autolearn=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 j80DqMJlvpFa for ; Wed, 21 May 2014 12:07:17 -0700 (PDT) Received: from usevmg21.ericsson.net (usevmg21.ericsson.net [198.24.6.65]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id DCF121A01C6 for ; Wed, 21 May 2014 12:07:16 -0700 (PDT) X-AuditID: c6180641-f79df6d000002de0-7a-537ca7356b5c Received: from EUSAAHC005.ericsson.se (Unknown_Domain [147.117.188.87]) by usevmg21.ericsson.net (Symantec Mail Security) with SMTP id 37.E7.11744.537AC735; Wed, 21 May 2014 15:16:38 +0200 (CEST) Received: from EUSAAMB109.ericsson.se ([147.117.188.126]) by EUSAAHC005.ericsson.se ([147.117.188.87]) with mapi id 14.03.0174.001; Wed, 21 May 2014 15:07:13 -0400 From: Jeff Tantsura To: "Henderickx, Wim (Wim)" Thread-Topic: [spring] Segment Routing Drafts Thread-Index: AQHPdSeYOwASo4aoKEad2/HPBE8igptLZXDn Date: Wed, 21 May 2014 19:07:13 +0000 Message-ID: <95C429A0-B2AC-43A1-A2C4-14E238BBA0D5@ericsson.com> References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrDLMWRmVeSWpSXmKPExsUyuXRPuK7Z8ppgg/+fmS3+/tzKaDHzxldW i/W7HzFZHL/wm9Fi9uMfbA6sHq3P9rJ6TPm9kdVjyZKfTB7Xm66yB7BEcdmkpOZklqUW6dsl cGV8X3qTsaBbuuLrv3uMDYwPxLoYOTkkBEwkruyexwJhi0lcuLeerYuRi0NI4CijxMw7HUwQ znJGiV0NO5hBqtgEDCT+fzsO1iEiYC/x7s5MdhCbWWAvo8T5dj8QW1hAR6L75xugSRxANboS N95oQZQbSbw4PYsJJMwioCrxfZsRSJgXaMql1otsILaQgJ3Ezmt3GEFsTqD49xvzwWxGoNu+ n1rDBLFJXOLWk/lMEDcLSCzZc54ZwhaVePn4HytEjY7Egt2f2CBsbYllC18zQ+wSlDg58wnL BEbRWUhGzULSMgtJyywkLQsYWVYxcpQWp5blphsZbmIERs8xCTbHHYwLPlkeYhTgYFTi4V2g Xh0sxJpYVlyZe4hRmoNFSZx3z7WqYCGB9MSS1OzU1ILUovii0pzU4kOMTBycUg2MHFMLjPxY OrhbelZcaJl+2XKRouSx1ROzsgXs19pWLE5buuHyjd175djn6y9/Kum/NFp9Euf67z28UV8i V2/RydfQW3lA4C/DD/bTrR6nNSsC55+XCDpXI7potkuhCMNbZceFG4QWMHZMdy9OW3KiVkNF +Dvvtj8bFHRPMbY+llmePueL7gc3JZbijERDLeai4kQAVfxE2n8CAAA= Archived-At: http://mailarchive.ietf.org/arch/msg/spring/s0BYC5SM7IV9SlwT2ToCZDNF2ro Cc: "Alvaro Retana \(aretana\)" , " ietf.org" , "Stefano Previdi \(sprevidi\)" , "John G. Scudder" Subject: Re: [spring] Segment Routing Drafts X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 May 2014 19:07:18 -0000 Fully agree! Regards, Jeff > On May 21, 2014, at 9:05 PM, "Henderickx, Wim (Wim)" wrote: >=20 > These documents have been going through multiple reviews and are ready to > ask for WG adoption afais. >=20 >> On 20/05/14 11:00, "Stefano Previdi (sprevidi)" wro= te: >>=20 >> Dear WG members and co-chairs, >>=20 >> after the adoption of draft-ietf-spring-problem-statement I'd like to >> submit=20 >> to your consideration the following documents that has been presented >> already=20 >> at multiple occasions (IETF87, IETF88 and IETF89): >>=20 >> 1.=20 >> http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-use-cas= es >> -00 >> The WG already expressed consensus and support to the document during >> IETF88 but >> its adoption to WG item has been deferred due to the work on the problem >> statement draft.=20 >>=20 >> 2. http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-01 >> This document is the base description of the SR technology and >> terminology. It=20 >> has updated to the latest state of the agreement on SR from all the >> co-authors=20 >> (vendors and operators). The draft has been simplified and focuses on th= e >> SR terminology and applicability to existing dataplanes. It clearly >> describes=20 >> how SR fits within the MPLS architecture and IPv6 architecture. >>=20 >> 3.=20 >> http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-mpls-01 >> The document describes the instantiation of SR on the MPLS dataplane. Th= e >> draft has been updated with some illustration examples so to show how SR >> operates on top of MPLS and how MPLS dataplane is used "as is", i.e., >> without=20 >> any modification. >>=20 >> 4.=20 >> http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-ldp-int= er >> op-01 >> This document describes the interoperability between SR and LDP in order >> to=20 >> ease gradual deployments and co-existence between SR and legacy LDP >> control=20 >> plane. >>=20 >> 5.=20 >> http://tools.ietf.org/html/draft-francois-spring-segment-routing-ti-lfa-= 00 >> This document outlines the SR solution for a Topology Independent LFA >> strategy. >> It addresses the use case and requirement described in >> draft-ietf-spring-resiliency-use-cases-00 >>=20 >> As a reminder, Segment Routing protocol extensions are described in: >> . http://tools.ietf.org/html/draft-ietf-isis-segment-routing-extensions-= 00 >> WG Item in ISIS working group >> .=20 >> http://tools.ietf.org/html/draft-psenak-ospf-segment-routing-extensions-= 04 >>=20 >> http://tools.ietf.org/html/draft-psenak-ospf-segment-routing-ospfv3-exte= ns >> ion-01 >> in OSPF working group >> . http://tools.ietf.org/html/draft-sivabalan-pce-segment-routing-02 >> in PCE working group >>=20 >> The scope of this email is to bring these documents to your attention in >> order=20 >> to validate the consensus and support the authors require prior to >> request=20 >> their adoption as WG items to the WG-chairs. >>=20 >>=20 >> Thanks. >> s. >>=20 >>=20 >>=20 >>=20 >>=20 >> _______________________________________________ >> spring mailing list >> spring@ietf.org >> https://www.ietf.org/mailman/listinfo/spring >=20 > _______________________________________________ > spring mailing list > spring@ietf.org > https://www.ietf.org/mailman/listinfo/spring From nobody Wed May 21 18:28:13 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 118C81A002D for ; Wed, 21 May 2014 18:28:11 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.552 X-Spam-Level: X-Spam-Status: No, score=-4.552 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, MIME_8BIT_HEADER=0.3, RCVD_IN_DNSWL_MED=-2.3, RP_MATCHES_RCVD=-0.651, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id JbuhYnfQZDpZ for ; Wed, 21 May 2014 18:28:09 -0700 (PDT) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 058751A0013 for ; Wed, 21 May 2014 18:28:07 -0700 (PDT) Received: from 172.18.7.190 (EHLO lhreml203-edg.china.huawei.com) ([172.18.7.190]) by lhrrg01-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id BHB16206; Thu, 22 May 2014 01:28:06 +0000 (GMT) Received: from LHREML405-HUB.china.huawei.com (10.201.5.242) by lhreml203-edg.huawei.com (172.18.7.221) with Microsoft SMTP Server (TLS) id 14.3.158.1; Thu, 22 May 2014 02:27:53 +0100 Received: from NKGEML408-HUB.china.huawei.com (10.98.56.39) by lhreml405-hub.china.huawei.com (10.201.5.242) with Microsoft SMTP Server (TLS) id 14.3.158.1; Thu, 22 May 2014 02:28:04 +0100 Received: from NKGEML512-MBS.china.huawei.com ([169.254.8.62]) by nkgeml408-hub.china.huawei.com ([10.98.56.39]) with mapi id 14.03.0158.001; Thu, 22 May 2014 09:27:59 +0800 From: Xuxiaohu To: Robert Raszuk Thread-Topic: =?utf-8?B?W3NwcmluZ10g562U5aSNOiDnrZTlpI06IOetlOWkjTogZHJhZnQtZ3JlZGxl?= =?utf-8?Q?r-spring-mpls-05.txt_as_SPRING_WG_document?= Thread-Index: AQHPdP4KPy0DQCz4VUae0Dq63dHZCJtLyhkA Date: Thu, 22 May 2014 01:27:59 +0000 Message-ID: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827AD53@NKGEML512-MBS.china.huawei.com> References: <201405161737.s4GHbmL60524@magenta.juniper.net> <20140520151856.GA11618@juniper.net> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A889@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A8A3@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A8E1@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A907@NKGEML512-MBS.china.huawei.com> In-Reply-To: Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.111.98.134] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-CFilter-Loop: Reflected Archived-At: http://mailarchive.ietf.org/arch/msg/spring/wgyKe2jAvERZXYlDfjBltVpM0KM Cc: Yakov Rekhter , "spring@ietf.org" , "Alvaro Retana \(aretana\)" , "John G. Scudder" , Hannes Gredler Subject: [spring] =?utf-8?b?562U5aSNOiAg562U5aSNOiDnrZTlpI06IOetlOWkjTog?= =?utf-8?q?draft-gredler-spring-mpls-05=2Etxt_as_SPRING_WG_document?= X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." 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Ly93d3cuaWV0Zi5vcmcvbWFpbG1hbi9saXN0aW5mby9zcHJpbmcNCg== From nobody Wed May 21 18:32:49 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 803B71A0071 for ; Wed, 21 May 2014 18:32:45 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.978 X-Spam-Level: X-Spam-Status: No, score=-0.978 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, FM_FORGED_GMAIL=0.622, FREEMAIL_FROM=0.001, MIME_8BIT_HEADER=0.3, SPF_PASS=-0.001] autolearn=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 avjWkzMdTGWc for ; Wed, 21 May 2014 18:32:44 -0700 (PDT) Received: from mail-ie0-x230.google.com (mail-ie0-x230.google.com [IPv6:2607:f8b0:4001:c03::230]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate 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10.64.242.198 with HTTP; Wed, 21 May 2014 18:32:42 -0700 (PDT) In-Reply-To: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827AD53@NKGEML512-MBS.china.huawei.com> References: <201405161737.s4GHbmL60524@magenta.juniper.net> <20140520151856.GA11618@juniper.net> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A889@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A8A3@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A8E1@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A907@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827AD53@NKGEML512-MBS.china.huawei.com> Date: Thu, 22 May 2014 03:32:42 +0200 X-Google-Sender-Auth: 5KSyj3EG4Vt8KuZ8pOESwhTCyC0 Message-ID: From: Robert Raszuk To: Xuxiaohu Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Archived-At: http://mailarchive.ietf.org/arch/msg/spring/khI3V4sNbQMlv8oGsoT5S_-qJ2g Cc: Yakov Rekhter , "spring@ietf.org" , "Alvaro Retana \(aretana\)" , "John G. Scudder" , Hannes Gredler Subject: Re: [spring] =?utf-8?b?562U5aSNOiAg562U5aSNOiDnrZTlpI06IOetlOWkjTog?= =?utf-8?q?draft-gredler-spring-mpls-05=2Etxt_as_SPRING_WG_document?= X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 May 2014 01:32:45 -0000 Yes I did not draw another targetted session, but this is not the point. You can't put for a given prefix multiple incoming labels in LFIB. Only what is in the RIB from single protocol is installed in LFIB. So you can't have both 1033 and 44 in the LFIB. Rgs, R. On Thu, May 22, 2014 at 3:27 AM, Xuxiaohu wrote: > Hi Robert, > > On R2, the label 33 learnt from T-LDP should be the outgoing label, rathe= r than the ingoing label for FEC 3.3.3.3/32, one of the incoming labels for= FEC 3.3.3.3/32 should be 1033. Another incoming label for FEC 3.3.3.3/32 i= s a label (e.g., 44) allocated by the LDP module. In other word, when recei= ving a packet with top label of either 1033 or 44, that top label would be = swapped to 33. > > Best regards, > Xiaohu > >> -----=E9=82=AE=E4=BB=B6=E5=8E=9F=E4=BB=B6----- >> =E5=8F=91=E4=BB=B6=E4=BA=BA: spring [mailto:spring-bounces@ietf.org] =E4= =BB=A3=E8=A1=A8 Robert Raszuk >> =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2014=E5=B9=B45=E6=9C=8821=E6=97=A5= 22:08 >> =E6=94=B6=E4=BB=B6=E4=BA=BA: Xuxiaohu >> =E6=8A=84=E9=80=81: Yakov Rekhter; spring@ietf.org; Hannes Gredler; John= G. Scudder; Alvaro >> Retana (aretana) >> =E4=B8=BB=E9=A2=98: Re: [spring] =E7=AD=94=E5=A4=8D: =E7=AD=94=E5=A4=8D:= =E7=AD=94=E5=A4=8D: draft-gredler-spring-mpls-05.txt as >> SPRING WG document >> >> Hi Xu, >> >> Sure .. please see attached CONCRETE example. >> >> Best, >> R. >> >> On Wed, May 21, 2014 at 10:38 AM, Xuxiaohu >> wrote: >> > >> > >> >> -----=E9=82=AE=E4=BB=B6=E5=8E=9F=E4=BB=B6----- >> >> =E5=8F=91=E4=BB=B6=E4=BA=BA: rraszuk@gmail.com [mailto:rraszuk@gmail.= com] =E4=BB=A3=E8=A1=A8 Robert >> Raszuk >> >> =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2014=E5=B9=B45=E6=9C=8821=E6=97= =A5 16:12 >> >> =E6=94=B6=E4=BB=B6=E4=BA=BA: Xuxiaohu >> >> =E6=8A=84=E9=80=81: Yakov Rekhter; Hannes Gredler; spring@ietf.org; J= ohn G. Scudder; >> >> Alvaro Retana (aretana) >> >> =E4=B8=BB=E9=A2=98: Re: [spring] =E7=AD=94=E5=A4=8D: =E7=AD=94=E5=A4= =8D: draft-gredler-spring-mpls-05.txt as SPRING >> >> WG document >> >> >> >> Xu, >> >> >> >> You do not get the concept of global (domian wide) label. >> > >> > Maybe. >> > >> >> You can't attach to a packet SR header with labels (SIDs) learned by >> >> ISIS and in the segment nodes use LDP learned labels for forwarding i= n your >> data plane. >> > >> > Why can't? Please give a CONCRETE example and then assert who don=E2= =80=99t >> > get the concept of MPLS and SR:) >> > >> > Best regards, >> > Xiaohu >> > >> >> That's the issue with consistency of label for a given FEC >> >> distributed by more then one protocol within your domain. >> >> >> >> Best, >> >> R. >> >> >> >> On Wed, May 21, 2014 at 10:01 AM, Xuxiaohu >> >> wrote: >> >> > No, I don't think so. As long as a label for a given 32/ or 128/ >> >> > FEC is attached to >> >> a packet, no matter from whichever label distribution protocol this >> >> label is learnt, the packet would definitely be forwarded to the node >> >> identified by that FEC along the shortest path. >> >> > >> >> > Could you give a concrete example to illustrate why the forwarding >> >> > result is >> >> rather poor? >> >> > >> >> > Best regards, >> >> > Xiaohu >> >> > >> >> >> -----=E9=82=AE=E4=BB=B6=E5=8E=9F=E4=BB=B6----- >> >> >> =E5=8F=91=E4=BB=B6=E4=BA=BA: rraszuk@gmail.com [mailto:rraszuk@gma= il.com] =E4=BB=A3=E8=A1=A8 Robert >> >> Raszuk >> >> >> =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2014=E5=B9=B45=E6=9C=8821=E6= =97=A5 15:41 >> >> >> =E6=94=B6=E4=BB=B6=E4=BA=BA: Xuxiaohu >> >> >> =E6=8A=84=E9=80=81: Hannes Gredler; spring@ietf.org; Alvaro Retana= (aretana); John G. >> >> >> Scudder; Yakov Rekhter >> >> >> =E4=B8=BB=E9=A2=98: Re: [spring] =E7=AD=94=E5=A4=8D: draft-gredler= -spring-mpls-05.txt as SPRING WG >> >> >> document >> >> >> >> >> >> If your SR segments are to be engineered by set of SR headers for >> >> >> a given FEC and anywhere in the network you will suddenly choose >> >> >> LDP learned label for a given FEC the forwarding results will be >> >> >> rather poor don't >> >> you think ? >> >> >> >> >> >> r. >> >> >> >> >> >> On Wed, May 21, 2014 at 9:33 AM, Xuxiaohu >> >> wrote: >> >> >> > Robert, >> >> >> > >> >> >> >> -----=E9=82=AE=E4=BB=B6=E5=8E=9F=E4=BB=B6----- >> >> >> >> =E5=8F=91=E4=BB=B6=E4=BA=BA: rraszuk@gmail.com [mailto:rraszuk@= gmail.com] =E4=BB=A3=E8=A1=A8 >> Robert >> >> >> Raszuk >> >> >> >> =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2014=E5=B9=B45=E6=9C=8821= =E6=97=A5 15:25 >> >> >> >> =E6=94=B6=E4=BB=B6=E4=BA=BA: Xuxiaohu >> >> >> >> =E6=8A=84=E9=80=81: Hannes Gredler; Yakov Rekhter; spring@ietf.= org; Alvaro >> >> >> >> Retana (aretana); John G. Scudder >> >> >> >> =E4=B8=BB=E9=A2=98: Re: [spring] draft-gredler-spring-mpls-05.t= xt as SPRING WG >> >> >> >> document >> >> >> >> >> >> >> >> Xiaohu, >> >> >> >> >> >> >> >> > Since there are just label distribution protocols which don't >> >> >> >> > affect the route selection at all, why do you care about that >> >> >> >> > consistency among >> >> >> >> routers? >> >> >> >> >> >> >> >> We are talking about label selection and not route selection. >> >> >> >> >> >> >> >> This is about the same FEC so same route hence route selection >> >> >> >> does not come to the picture. >> >> >> > >> >> >> > Sure. Then what's the problem if there is inconsistency of label >> >> >> > selection >> >> >> among routers (e.g., some routers prefer label bindings learnt >> >> >> from ISIS while others prefer label bindings learnt from LDP)? >> >> >> > >> >> >> > Best regards, >> >> >> > Xiaohu >> >> >> > >> >> >> >> Thx, >> >> >> >> R. >> >> >> > _______________________________________________ >> >> >> > spring mailing list >> >> >> > spring@ietf.org >> >> >> > https://www.ietf.org/mailman/listinfo/spring >> >> > _______________________________________________ >> >> > spring mailing list >> >> > spring@ietf.org >> >> > https://www.ietf.org/mailman/listinfo/spring >> > _______________________________________________ >> > spring mailing list >> > spring@ietf.org >> > https://www.ietf.org/mailman/listinfo/spring From nobody Wed May 21 19:43:46 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D169E1A0078 for ; Wed, 21 May 2014 19:43:44 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.552 X-Spam-Level: X-Spam-Status: No, score=-4.552 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, MIME_8BIT_HEADER=0.3, RCVD_IN_DNSWL_MED=-2.3, RP_MATCHES_RCVD=-0.651, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id edURQCl5XE2K for ; Wed, 21 May 2014 19:43:42 -0700 (PDT) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 60B1E1A006D for ; Wed, 21 May 2014 19:43:41 -0700 (PDT) Received: from 172.18.7.190 (EHLO lhreml203-edg.china.huawei.com) ([172.18.7.190]) by lhrrg02-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id BEK18570; Thu, 22 May 2014 02:43:38 +0000 (GMT) Received: from LHREML404-HUB.china.huawei.com (10.201.5.218) by lhreml203-edg.huawei.com (172.18.7.221) with Microsoft SMTP Server (TLS) id 14.3.158.1; Thu, 22 May 2014 03:43:24 +0100 Received: from NKGEML406-HUB.china.huawei.com (10.98.56.37) by lhreml404-hub.china.huawei.com (10.201.5.218) with Microsoft SMTP Server (TLS) id 14.3.158.1; Thu, 22 May 2014 03:43:31 +0100 Received: from NKGEML512-MBS.china.huawei.com ([169.254.8.62]) by nkgeml406-hub.china.huawei.com ([10.98.56.37]) with mapi id 14.03.0158.001; Thu, 22 May 2014 10:43:27 +0800 From: Xuxiaohu To: Robert Raszuk Thread-Topic: =?utf-8?B?562U5aSNOiBbc3ByaW5nXSDnrZTlpI06IOetlOWkjTog562U5aSNOiBkcmFm?= =?utf-8?B?dC1ncmVkbGVyLXNwcmluZy1tcGxzLTA1LnR4dCBhcyBTUFJJTkcgV0cgZG9j?= =?utf-8?Q?ument?= Thread-Index: AQHPdP4KPy0DQCz4VUae0Dq63dHZCJtLyhkA//+BQQCAAIsugA== Date: Thu, 22 May 2014 02:43:27 +0000 Message-ID: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827ADD8@NKGEML512-MBS.china.huawei.com> References: <201405161737.s4GHbmL60524@magenta.juniper.net> <20140520151856.GA11618@juniper.net> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A889@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A8A3@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A8E1@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A907@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827AD53@NKGEML512-MBS.china.huawei.com> In-Reply-To: Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.111.98.134] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-CFilter-Loop: Reflected Archived-At: http://mailarchive.ietf.org/arch/msg/spring/Eq1h84kaPyqwVC2mP2Us20uhUIo Cc: Yakov Rekhter , "spring@ietf.org" , "Alvaro Retana \(aretana\)" , "John G. Scudder" , Hannes Gredler Subject: [spring] =?utf-8?b?562U5aSNOiDnrZTlpI06ICDnrZTlpI06IOetlOWkjTog?= =?utf-8?q?=E7=AD=94=E5=A4=8D=3A_draft-gredler-spring-mpls-05=2Etxt_as_SPR?= =?utf-8?q?ING_WG_document?= X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." 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X19fX19fX19fX19fX19fX19fX19fDQo+ID4+ID4+ID4+ID4gc3ByaW5nIG1haWxpbmcgbGlzdA0K PiA+PiA+PiA+PiA+IHNwcmluZ0BpZXRmLm9yZw0KPiA+PiA+PiA+PiA+IGh0dHBzOi8vd3d3Lmll dGYub3JnL21haWxtYW4vbGlzdGluZm8vc3ByaW5nDQo+ID4+ID4+ID4gX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18NCj4gPj4gPj4gPiBzcHJpbmcgbWFpbGlu ZyBsaXN0DQo+ID4+ID4+ID4gc3ByaW5nQGlldGYub3JnDQo+ID4+ID4+ID4gaHR0cHM6Ly93d3cu aWV0Zi5vcmcvbWFpbG1hbi9saXN0aW5mby9zcHJpbmcNCj4gPj4gPiBfX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXw0KPiA+PiA+IHNwcmluZyBtYWlsaW5nIGxp c3QNCj4gPj4gPiBzcHJpbmdAaWV0Zi5vcmcNCj4gPj4gPiBodHRwczovL3d3dy5pZXRmLm9yZy9t YWlsbWFuL2xpc3RpbmZvL3NwcmluZw0K From nobody Wed May 21 20:10:32 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 6CF991A009A for ; Wed, 21 May 2014 20:10:29 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.978 X-Spam-Level: X-Spam-Status: No, score=-0.978 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, FM_FORGED_GMAIL=0.622, FREEMAIL_FROM=0.001, MIME_8BIT_HEADER=0.3, SPF_PASS=-0.001] autolearn=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 x9OkL6Cd8rR6 for ; Wed, 21 May 2014 20:10:28 -0700 (PDT) Received: from mail-ie0-x232.google.com (mail-ie0-x232.google.com [IPv6:2607:f8b0:4001:c03::232]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 4B2251A0096 for ; Wed, 21 May 2014 20:10:28 -0700 (PDT) Received: by mail-ie0-f178.google.com with SMTP id rl12so2954168iec.37 for ; Wed, 21 May 2014 20:10:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=VFxS0KJcXgAljILKUE0lqdxhRz0SW7uSSJaZ4yLkEqQ=; b=f+QhuNGm+EXWUqLohLN8XXkoVqUTxnSDk9pqKgFu6BWooYuo4OkilEz00PjqFsN33Q TQW60CIp3lROqNalNYKjYRKXrwsoP1jjSGaQAXOawzuzWmpAcelvuT3dUAWliUBpo0Uh WQ9puUiHy8VXGzTCbtUcetcQwugVo8A+5CegQVBFcm30K4kgY5uZWX/XDzH67eimPtO4 K0iFluH95XA72i7rZHGvvKvJk/OrtB3EvRFyrvwo7fjTmlxLce1hD3LbqMMUAL3cQHiM 0gr4ID4AmGHxB2Lur1l5rt26I/PIYV6DSkEtJL5QSQDUwx8xgyml1KM0eDMrbx2CLT1A e4bA== MIME-Version: 1.0 X-Received: by 10.50.62.51 with SMTP id v19mr18577412igr.21.1400728226983; Wed, 21 May 2014 20:10:26 -0700 (PDT) Sender: rraszuk@gmail.com Received: by 10.64.242.198 with HTTP; Wed, 21 May 2014 20:10:26 -0700 (PDT) In-Reply-To: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827ADD8@NKGEML512-MBS.china.huawei.com> References: <201405161737.s4GHbmL60524@magenta.juniper.net> <20140520151856.GA11618@juniper.net> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A889@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A8A3@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A8E1@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A907@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827AD53@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827ADD8@NKGEML512-MBS.china.huawei.com> Date: Thu, 22 May 2014 05:10:26 +0200 X-Google-Sender-Auth: y_GU-actBqX_4Brue1i2Nw59qs8 Message-ID: From: Robert Raszuk To: Xuxiaohu Content-Type: text/plain; charset=UTF-8 Archived-At: http://mailarchive.ietf.org/arch/msg/spring/93D1PrluYh4Jbycq3dh48TcE7s4 Cc: Yakov Rekhter , "spring@ietf.org" , "Alvaro Retana \(aretana\)" , "John G. Scudder" , Hannes Gredler Subject: Re: [spring] =?utf-8?b?562U5aSNOiDnrZTlpI06ICDnrZTlpI06IOetlOWkjTog?= =?utf-8?q?=E7=AD=94=E5=A4=8D=3A_draft-gredler-spring-mpls-05=2Etxt_as_SPR?= =?utf-8?q?ING_WG_document?= X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 May 2014 03:10:29 -0000 Hi Xu, > If the implementation doesn't support interoperation between different > label distribution protocols, the implementation should have separate > LFIB entries for each distribution protocol. In this way, there are still > multiple LFIB (MPLS2MPLS) entries for a given prefix anyway. How would you lookup mpls packets across those multiple tables ? One by one ? > No matter whether R2 has another T-LDP session or not, the label > 33 learnt from the T-LDP session with R3 should not be deemed as > an incoming label. Incoming labels should always be those labels > allocated by R2 itself. Of course. I did not draw the targetted session to say R10 from R2 allocating 44. The point was that if at R2 targetted LDP wins over IGP for label allocation (and we are talking about global per R2 label space - not per interface) labels distributed by IGP for FEC 3.3.3.3 will not end up in LFIB. The same actually for labeled-bgp and IGP global labels. So I guess we understand each other's point now. You say to always install all labels regardless of what protocol src FEC is in the RIB. Specifically all labels locally allocated as well as global labels distributed by IGP in one or many LFIBs. I do not think this is the case today at least in few mpls implementations. Moreover I am not sure that this is always possible with the index based label hack to accomodate overlapping label spaces across nodes. Best, R. From nobody Wed May 21 21:01:19 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 571B71A00B2 for ; Wed, 21 May 2014 21:01:18 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.552 X-Spam-Level: X-Spam-Status: No, score=-4.552 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, MIME_8BIT_HEADER=0.3, RCVD_IN_DNSWL_MED=-2.3, RP_MATCHES_RCVD=-0.651, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id U258I2sSWDuT for ; Wed, 21 May 2014 21:01:17 -0700 (PDT) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id BF1961A00B0 for ; Wed, 21 May 2014 21:01:16 -0700 (PDT) Received: from 172.18.7.190 (EHLO lhreml204-edg.china.huawei.com) ([172.18.7.190]) by lhrrg02-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id BEK23120; Thu, 22 May 2014 04:01:14 +0000 (GMT) Received: from LHREML401-HUB.china.huawei.com (10.201.5.240) by lhreml204-edg.china.huawei.com (172.18.7.223) with Microsoft SMTP Server (TLS) id 14.3.158.1; Thu, 22 May 2014 05:01:02 +0100 Received: from nkgeml405-hub.china.huawei.com (10.98.56.36) by lhreml401-hub.china.huawei.com (10.201.5.240) with Microsoft SMTP Server (TLS) id 14.3.158.1; Thu, 22 May 2014 05:01:12 +0100 Received: from NKGEML512-MBS.china.huawei.com ([169.254.8.62]) by nkgeml405-hub.china.huawei.com ([10.98.56.36]) with mapi id 14.03.0158.001; Thu, 22 May 2014 12:01:07 +0800 From: Xuxiaohu To: Robert Raszuk Thread-Topic: =?utf-8?B?562U5aSNOiDnrZTlpI06IFtzcHJpbmddIOetlOWkjTog562U5aSNOiDnrZQ=?= =?utf-8?B?5aSNOiBkcmFmdC1ncmVkbGVyLXNwcmluZy1tcGxzLTA1LnR4dCBhcyBTUFJJ?= =?utf-8?Q?NG_WG_document?= Thread-Index: AQHPdP4KPy0DQCz4VUae0Dq63dHZCJtLyhkA//+BQQCAAIsugP//kCAAgACGYmA= Date: Thu, 22 May 2014 04:01:06 +0000 Message-ID: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827AE56@NKGEML512-MBS.china.huawei.com> References: <201405161737.s4GHbmL60524@magenta.juniper.net> <20140520151856.GA11618@juniper.net> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A889@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A8A3@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A8E1@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A907@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827AD53@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827ADD8@NKGEML512-MBS.china.huawei.com> In-Reply-To: Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.111.98.134] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-CFilter-Loop: Reflected Archived-At: http://mailarchive.ietf.org/arch/msg/spring/QFbBOsH193bfJRpjokJGcpSkqhQ Cc: Yakov Rekhter , "spring@ietf.org" , "Alvaro Retana \(aretana\)" , "John G. Scudder" , Hannes Gredler Subject: [spring] =?utf-8?b?562U5aSNOiDnrZTlpI06IOetlOWkjTogIOetlOWkjTog?= =?utf-8?b?562U5aSNOiDnrZTlpI06IGRyYWZ0LWdyZWRsZXItc3ByaW5nLW1wbHMtMDUu?= =?utf-8?q?txt_as_SPRING_WG_document?= X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 May 2014 04:01:18 -0000 DQoNCj4gLS0tLS3pgq7ku7bljp/ku7YtLS0tLQ0KPiDlj5Hku7bkuro6IHJyYXN6dWtAZ21haWwu Y29tIFttYWlsdG86cnJhc3p1a0BnbWFpbC5jb21dIOS7o+ihqCBSb2JlcnQgUmFzenVrDQo+IOWP kemAgeaXtumXtDogMjAxNOW5tDXmnIgyMuaXpSAxMToxMA0KPiDmlLbku7bkuro6IFh1eGlhb2h1 DQo+IOaKhOmAgTogWWFrb3YgUmVraHRlcjsgc3ByaW5nQGlldGYub3JnOyBIYW5uZXMgR3JlZGxl cjsgSm9obiBHLiBTY3VkZGVyOyBBbHZhcm8NCj4gUmV0YW5hIChhcmV0YW5hKQ0KPiDkuLvpopg6 IFJlOiDnrZTlpI06IOetlOWkjTogW3NwcmluZ10g562U5aSNOiDnrZTlpI06IOetlOWkjToNCj4g ZHJhZnQtZ3JlZGxlci1zcHJpbmctbXBscy0wNS50eHQgYXMgU1BSSU5HIFdHIGRvY3VtZW50DQo+ IA0KPiBIaSBYdSwNCj4gDQo+ID4gSWYgdGhlIGltcGxlbWVudGF0aW9uIGRvZXNuJ3Qgc3VwcG9y dCBpbnRlcm9wZXJhdGlvbiBiZXR3ZWVuIGRpZmZlcmVudA0KPiA+IGxhYmVsIGRpc3RyaWJ1dGlv biBwcm90b2NvbHMsIHRoZSBpbXBsZW1lbnRhdGlvbiBzaG91bGQgaGF2ZSBzZXBhcmF0ZQ0KPiA+ IExGSUIgZW50cmllcyBmb3IgZWFjaCBkaXN0cmlidXRpb24gcHJvdG9jb2wuIEluIHRoaXMgd2F5 LCB0aGVyZSBhcmUNCj4gPiBzdGlsbCBtdWx0aXBsZSBMRklCIChNUExTMk1QTFMpIGVudHJpZXMg Zm9yIGEgZ2l2ZW4gcHJlZml4IGFueXdheS4NCj4gDQo+IEhvdyB3b3VsZCB5b3UgbG9va3VwIG1w bHMgcGFja2V0cyBhY3Jvc3MgdGhvc2UgbXVsdGlwbGUgdGFibGVzID8gT25lIGJ5IG9uZSA/DQoN CkkgZGlkbid0IG1lYW4gbXVsdGlwbGUgdGFibGVzLiBJbnN0ZWFkLCBJIG1lYW4gbXVsdGlwbGUg ZW50cmllcyBmb3IgYSBnaXZlbiBGRUMgd2l0aGluIHRoZSBMRklCIGFuZCBlYWNoIGlzIGZvciBh IHNlcGFyYXRlIGxhYmVsIGRpc3RyaWJ1dGlvbiBwcm90b2NvbC4NCg0KPiA+IE5vIG1hdHRlciB3 aGV0aGVyIFIyIGhhcyBhbm90aGVyIFQtTERQIHNlc3Npb24gb3Igbm90LCB0aGUgbGFiZWwNCj4g PiAzMyBsZWFybnQgZnJvbSB0aGUgVC1MRFAgc2Vzc2lvbiB3aXRoIFIzIHNob3VsZCBub3QgYmUg ZGVlbWVkIGFzIGFuDQo+ID4gaW5jb21pbmcgbGFiZWwuIEluY29taW5nIGxhYmVscyBzaG91bGQg YWx3YXlzIGJlIHRob3NlIGxhYmVscw0KPiA+IGFsbG9jYXRlZCBieSBSMiBpdHNlbGYuDQo+IA0K PiBPZiBjb3Vyc2UuIEkgZGlkIG5vdCBkcmF3IHRoZSB0YXJnZXR0ZWQgc2Vzc2lvbiB0byBzYXkg UjEwIGZyb20gUjIgYWxsb2NhdGluZyA0NC4NCj4gVGhlIHBvaW50IHdhcyB0aGF0IGlmIGF0IFIy IHRhcmdldHRlZCBMRFAgd2lucyBvdmVyIElHUCBmb3IgbGFiZWwgYWxsb2NhdGlvbiAoYW5kDQo+ IHdlIGFyZSB0YWxraW5nIGFib3V0IGdsb2JhbCBwZXIgUjIgbGFiZWwgc3BhY2UgLSBub3QgcGVy IGludGVyZmFjZSkgbGFiZWxzDQo+IGRpc3RyaWJ1dGVkIGJ5IElHUCBmb3IgRkVDIDMuMy4zLjMg d2lsbCBub3QgZW5kIHVwIGluIExGSUIuDQoNCkknbSB0YWxraW5nIGFib3V0IHBlci1wbGF0Zm9y bSBsYWJlbCBzcGFjZSBhcyB3ZWxsOikgIEFzIEkndmUgc2FpZCBiZWZvcmUsIGluIHRoZSBpbnRl cm9wZXJhdGlvbiBtb2RlLCB0aGUgb3V0Z29pbmcgbGFiZWwgZm9yIEZFQyAzLjMuMy4zLzMyIHdv dWxkIGJlIHRoZSBsYWJlbCBhZHZlcnRpc2VkIGJ5IExEUC4gSG93ZXZlciwgdGhlIGluY29taW5n IGxhYmVscyBmb3IgdGhhdCBGRUMgc2hvdWxkIGJlIHRoZSBsYWJlbHMgYWxsb2NhdGVkIGJ5IGJv dGggTERQIGFuZCBJR1AuIEluIHRoZSBzaGlwLWluLW5pZ2h0IG1vZGUsIHRoZXJlIGFyZSB0d28g TEZJQiBlbnRyaWVzIGZvciBGRUMgMy4zLjMuMy8zMiwgb25lIGlzIGZyb20gTERQIChlLmcuLCA0 NCAoaW4pLT4zMyhvdXQpKSBhbmQgdGhlIG90aGVyIGlzIGZyb20gSUdQIChlLmcuLCAxMDMzIChp biktPjEwMzMob3V0KSkuIEFzIGZvciBnbG9iYWwgbGFiZWxzLCBpdCBqdXN0IG1lYW4gYWxsIExT UnMgYWxsb2NhdGUgdGhlIHNhbWUgbGFiZWwgZm9yIGEgZ2l2ZW4gRkVDLg0KDQo+IFRoZSBzYW1l IGFjdHVhbGx5IGZvciBsYWJlbGVkLWJncCBhbmQgSUdQIGdsb2JhbCBsYWJlbHMuDQo+IA0KPiBT byBJIGd1ZXNzIHdlIHVuZGVyc3RhbmQgZWFjaCBvdGhlcidzIHBvaW50IG5vdy4gWW91IHNheSB0 byBhbHdheXMgaW5zdGFsbCBhbGwNCj4gbGFiZWxzIHJlZ2FyZGxlc3Mgb2Ygd2hhdCBwcm90b2Nv bCBzcmMgRkVDIGlzIGluIHRoZSBSSUIuDQo+IFNwZWNpZmljYWxseSBhbGwgbGFiZWxzIGxvY2Fs bHkgYWxsb2NhdGVkIGFzIHdlbGwgYXMgZ2xvYmFsIGxhYmVscyBkaXN0cmlidXRlZCBieSBJR1Ag aW4NCj4gb25lIG9yIG1hbnkgTEZJQnMuDQo+IA0KPiBJIGRvIG5vdCB0aGluayB0aGlzIGlzIHRo ZSBjYXNlIHRvZGF5IGF0IGxlYXN0IGluIGZldyBtcGxzIGltcGxlbWVudGF0aW9ucy4NCg0KSXQn cyBubyBzdXJwcmlzZSBzaW5jZSBhcyBJJ3ZlIHNhaWQgaXQncyB0b3RhbGx5IGEgaW1wbGVtZW50 YXRpb24gaXNzdWUuIEhvd2V2ZXIsIElNSE8sIHRob3NlIGZldyBNUExTIGltcGxlbWVudGF0aW9u cyBhcyB5b3UgbWVudGlvbmVkIGFib3ZlIGFyZSBub3QgaWRlYWwuIEF0IGxlYXN0LCBpZiBULUxE UCBpcyBwcmVmZXJyZWQgdG8gSUdQLCB0aGUgTFNSIHNob3VsZCBub3QgYWR2ZXJ0aXNlIGl0IGFz IGEgU1IgYW55bW9yZS4NCg0KPiBNb3Jlb3ZlciBJIGFtIG5vdCBzdXJlIHRoYXQgdGhpcyBpcyBh bHdheXMgcG9zc2libGUgd2l0aCB0aGUgaW5kZXggYmFzZWQgbGFiZWwNCj4gaGFjayB0byBhY2Nv bW9kYXRlIG92ZXJsYXBwaW5nIGxhYmVsIHNwYWNlcyBhY3Jvc3Mgbm9kZXMuDQoNClRoZSB1c2Fn ZSBvZiBJbmRleCBpcyBqdXN0IHRvIHJlZHVjZSB0aGUgbGFiZWwgYWR2ZXJ0aXNlbWVudHMsIGFu ZCBpdCBkb2Vzbid0IGNoYW5nZSB0aGUgbmF0dXJlIG9mIHRoZSBNUExTIGFyY2hpdGVjdHVyZSBh dCBhbGwuDQoNCkJlc3QgcmVnYXJkcywNClhpYW9odQ0KDQo+IEJlc3QsDQo+IFIuDQo= From nobody Thu May 22 02:18:51 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 91B2C1A0167 for ; 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Thu, 22 May 2014 09:18:43 +0000 Date: Thu, 22 May 2014 11:18:38 +0200 From: Hannes Gredler To: Xuxiaohu Message-ID: <20140522091838.GB21017@juniper.net> References: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A8E1@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A907@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827AD53@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827ADD8@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827AE56@NKGEML512-MBS.china.huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827AE56@NKGEML512-MBS.china.huawei.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Originating-IP: [193.110.55.15] X-Forefront-PRVS: 021975AE46 X-Forefront-Antispam-Report: SFV:NSPM; SFS:(6009001)(428001)(189002)(24454002)(199002)(81542001)(83506001)(76176999)(21056001)(102836001)(83072002)(85852003)(80022001)(4396001)(101416001)(50466002)(23726002)(50986999)(46102001)(31966008)(224303002)(54356999)(33656002)(66066001)(87936001)(46406003)(83322001)(74662001)(74502001)(77982001)(81342001)(92726001)(97756001)(79102001)(64706001)(99396002)(86362001)(76482001)(47776003)(20776003)(92566001)(71816001)(36756003); DIR:OUT; SFP:; SCL:1; SRVR:SN2PR0501MB895; H:BY2PRD0510HT003.namprd05.prod.outlook.com; FPR:; MLV:sfv; PTR:InfoNoRecords; MX:1; A:1; LANG:en; Received-SPF: None (: juniper.net does not designate permitted sender hosts) Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=hannes@juniper.net; X-OriginatorOrg: juniper.net Archived-At: http://mailarchive.ietf.org/arch/msg/spring/iEgc-u-BQ0Idyq3FRKBG0-FQ3dM Cc: Yakov Rekhter , "spring@ietf.org" , "John G. Scudder" , Robert Raszuk , "Alvaro Retana \(aretana\)" Subject: Re: [spring] =?utf-8?b?562U5aSNOiDnrZTlpI06IOetlOWkjTogIOetlOWkjTog?= =?utf-8?b?562U5aSNOiDnrZTlpI06ICBkcmFmdC1ncmVkbGVyLXNwcmluZy1tcGxzLTA1?= =?utf-8?q?=2Etxt_as_SPRING_WG_document?= X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 May 2014 09:18:49 -0000 On Thu, May 22, 2014 at 04:01:06AM +0000, Xuxiaohu wrote: [ ... ] | > Moreover I am not sure that this is always possible with the index based label | > hack to accomodate overlapping label spaces across nodes. this is not a "hack" - its a control-plane compression scheme, which has served us well in VPLS/L2VPN deployments - "running code", you see ? /hannes From nobody Thu May 22 07:02:37 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 4B0531A0176 for ; Thu, 22 May 2014 07:02:36 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.977 X-Spam-Level: X-Spam-Status: No, score=-0.977 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, FM_FORGED_GMAIL=0.622, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, MIME_8BIT_HEADER=0.3, SPF_PASS=-0.001] autolearn=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 VpiS0uWeJ3K5 for ; Thu, 22 May 2014 07:02:35 -0700 (PDT) Received: from mail-ig0-x22e.google.com (mail-ig0-x22e.google.com [IPv6:2607:f8b0:4001:c05::22e]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 465551A013B for ; Thu, 22 May 2014 07:02:35 -0700 (PDT) Received: by mail-ig0-f174.google.com with SMTP id h3so7625552igd.13 for ; Thu, 22 May 2014 07:02:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=u5i9Zy4+2cgJkuZ7POwQR6p5Ho0zzwKwj4/5EYRlfm0=; b=HUJxAfkeZLHFXYE14JjvbSlg1eHqj1EadNtIbhk2mWoVghiorUKVIfCE5XGrDDXPZd I3CLNzu02W/VN2C71YPEI8Vo794aeS4VTEorG48t1ermt4k9vxl0F0qvt533Dbse1I3m Hqp+uE11QjyGu8J4MAsL5Sf8uCoAo1XM2zlvDWwF/DaYmIGJMo8QnlYqlPi+aaEFAPCu r0MPGgurCFvBVRyN4TxB7itVlWkbNKqgZygk8bTBXiAv8x7olNg/6YHoNNDOoa7SwPve afm9sPBpTeK0fAhJsbFRJQMK2bOZ7njXCaFLnE3KrlW25d842gYasoiKVPBYnTdEnzXM 449A== MIME-Version: 1.0 X-Received: by 10.42.52.199 with SMTP id k7mr55474158icg.4.1400767353824; Thu, 22 May 2014 07:02:33 -0700 (PDT) Sender: rraszuk@gmail.com Received: by 10.64.242.198 with HTTP; Thu, 22 May 2014 07:02:33 -0700 (PDT) Received: by 10.64.242.198 with HTTP; Thu, 22 May 2014 07:02:33 -0700 (PDT) In-Reply-To: <20140522091838.GB21017@juniper.net> References: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A8E1@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827A907@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827AD53@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827ADD8@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0827AE56@NKGEML512-MBS.china.huawei.com> <20140522091838.GB21017@juniper.net> Date: Thu, 22 May 2014 16:02:33 +0200 X-Google-Sender-Auth: TunD8O6vXqQqLCW-vaRgJ0z8eD8 Message-ID: From: Robert Raszuk To: Hannes Gredler Content-Type: multipart/alternative; boundary=485b397dd60989ab4604f9fd90da Archived-At: http://mailarchive.ietf.org/arch/msg/spring/0kbze6N3yF0sOYohmJIiPI_9eLw Cc: "Alvaro Retana, \(aretana\)" , "John G. Scudder" , "spring@ietf.org" , Xuxiaohu , Yakov Rekhter Subject: Re: [spring] =?utf-8?b?562U5aSNOiDnrZTlpI06IOetlOWkjTog562U5aSNOiA=?= =?utf-8?b?562U5aSNOiDnrZTlpI06IGRyYWZ0LWdyZWRsZXItc3ByaW5nLW1wbHMtMDUu?= =?utf-8?q?txt_as_SPRING_WG_document?= X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 May 2014 14:02:36 -0000 --485b397dd60989ab4604f9fd90da Content-Type: text/plain; charset=UTF-8 Hey Hannes, By "hack" I mean someting very cool, brilliant and positive here .. ;) Cheers, R. On May 22, 2014 2:18 AM, "Hannes Gredler" wrote: > On Thu, May 22, 2014 at 04:01:06AM +0000, Xuxiaohu wrote: > [ ... ] > | > Moreover I am not sure that this is always possible with the index > based label > | > hack to accomodate overlapping label spaces across nodes. > > this is not a "hack" - its a control-plane compression scheme, > which has served us well in VPLS/L2VPN deployments - "running code", you > see ? > > /hannes > --485b397dd60989ab4604f9fd90da Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable

Hey Hannes,

By "hack" I mean someting very cool, brilliant and= positive here .. ;)

Cheers,
R.

On May 22, 2014 2:18 AM, "Hannes Gredler&qu= ot; <hannes@juniper.net> wr= ote:
On Thu, May 22, 2014 at 04:01:06AM +0000, Xuxiaohu wrote:
[ ... ]
| > Moreover I am not sure that this is always possible with the index b= ased label
| > hack to accomodate overlapping label spaces across nodes.

this is not a "hack" - its a control-plane compression scheme, which has served us well in VPLS/L2VPN deployments - "running code&quo= t;, you see ?

/hannes
--485b397dd60989ab4604f9fd90da-- From nobody Tue May 27 11:36:43 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 51CF81A0697 for ; Tue, 27 May 2014 11:36:39 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -15.152 X-Spam-Level: X-Spam-Status: No, score=-15.152 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, RP_MATCHES_RCVD=-0.651, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id o8k6AhSG5KaZ for ; Tue, 27 May 2014 11:36:36 -0700 (PDT) Received: from alln-iport-6.cisco.com (alln-iport-6.cisco.com [173.37.142.93]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 30E2D1A0694 for ; Tue, 27 May 2014 11:36:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=1034; q=dns/txt; s=iport; t=1401215792; x=1402425392; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-id:content-transfer-encoding: mime-version; bh=sITNIAoJL/xVG2zQgLLX8+MgxIDYks3o7F4s5zN4g28=; b=HnVDfor6Kh9CMMtJxqvKaNgS3b84HE/UvW/4NRUQUC3Aco2jiQFPn/wY 0YCR2+Faf5rwAzKaZqlNDJRWzN+p9YnzeGcuY7+pRd8/Zo24QxDN6Pv4B K69u6ETtbOtpkHaYGAtEteoRZiRWuGoKD98jFxG8A6LaVP0PkPWJWyaFT 0=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgwFAPLZhFOtJV2d/2dsb2JhbAA/GoMHUljCHAGBDhZ0giUBAQEEHVwQAgEIGC4yJQIEAQ0FiEJD1HwTBI5SB4RABIlnkAyTJ4F4gUBsgUM X-IronPort-AV: E=Sophos;i="4.98,921,1392163200"; d="scan'208";a="47635822" Received: from rcdn-core-6.cisco.com ([173.37.93.157]) by alln-iport-6.cisco.com with ESMTP; 27 May 2014 18:36:31 +0000 Received: from xhc-rcd-x14.cisco.com (xhc-rcd-x14.cisco.com [173.37.183.88]) by rcdn-core-6.cisco.com (8.14.5/8.14.5) with ESMTP id s4RIaVK4002799 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=FAIL); Tue, 27 May 2014 18:36:31 GMT Received: from xmb-aln-x02.cisco.com ([169.254.5.121]) by xhc-rcd-x14.cisco.com ([173.37.183.88]) with mapi id 14.03.0123.003; Tue, 27 May 2014 13:36:31 -0500 From: "Eric Vyncke (evyncke)" To: Hannes Gredler , "Stefano Previdi (sprevidi)" Thread-Topic: [spring] WG Adoption Call for draft-martin-spring-segment-routing-ipv6-use-cases Thread-Index: AQHPSRpHfoJZL7ndH0WDfBS+IHX9iprz+/GAgALKkNeAAFd2AIAAO5eAgF4+uYA= Date: Tue, 27 May 2014 18:36:30 +0000 Message-ID: References: <201403261739.s2QHd5V66734@magenta.juniper.net> <9C7637CE-C51C-49FA-BAFD-DB30C732B31D@cisco.com> <201403281736.s2SHawV72952@magenta.juniper.net> <20140328212333.GE30644@juniper.net> In-Reply-To: <20140328212333.GE30644@juniper.net> Accept-Language: fr-FR, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/14.4.1.140326 x-originating-ip: [10.55.185.77] Content-Type: text/plain; charset="iso-8859-1" Content-ID: <4F15C760E670334986E41299CB363575@emea.cisco.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Archived-At: http://mailarchive.ietf.org/arch/msg/spring/_dH_1lG8ivueTpwLkyzJTKwH-a8 Cc: Yakov Rekhter , "" , "Alvaro Retana \(aretana\)" Subject: Re: [spring] WG Adoption Call for draft-martin-spring-segment-routing-ipv6-use-cases X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 27 May 2014 18:36:39 -0000 Late reply to Hannes point: On 28/03/14 22:23, "Hannes Gredler" wrote: > >the real question is what percentage of public Internet routers > >1) does have MPLS hardware forwarding support >2) does have IPv6-SR hardware forwarding support. >=20 >And Regarding the IPv6-SR compatibility, as SRH is basically 'loose source routing', it only requires: - SRH processing by all SR-enabled router whose segment id is in the SRH, typically some PE routers. Those will need to be modified indeed but those will be minority - SRH forwarding (i.e. Not parsing or acting upon the SRH) for all remaining routers. Those will be the majority The latter is currently OK, I wrote a small script https://www.vyncke.org/sr.php which basically sends a dummy SRH to your browser (requirement is that your browser/clients supports IPv6) and after a dozen of tests, all were successful. While this is not a mathematical proof, this is good enough from my engineer's point of view Hope this helps -=E9ric From nobody Tue May 27 14:18:32 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id AE2CC1A0428 for ; Tue, 27 May 2014 14:18:30 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -15.152 X-Spam-Level: X-Spam-Status: No, score=-15.152 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, RP_MATCHES_RCVD=-0.651, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id rNY4hImgfOQi for ; Tue, 27 May 2014 14:18:29 -0700 (PDT) Received: from rcdn-iport-2.cisco.com (rcdn-iport-2.cisco.com [173.37.86.73]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id DE1871A04B6 for ; Tue, 27 May 2014 14:18:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=787; q=dns/txt; s=iport; t=1401225501; x=1402435101; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-id:content-transfer-encoding: mime-version; bh=ml88vWkSPbFzlsXlsDhbnDBEcT7MYPorI3loAZSv0Yo=; b=IhjRaZsDW5nfhAeXWjuyhVWsZma+NDKuK3HY+1Z07XYIRHsyHiqDkbDL RDS4S5OtXTWWHZJJE76yCMFXcroSaEEZLqXkDrppwRP5j2z7cRQ9RWQHb ym+uK/Ah2E4ZcDXk2P2uoPIRMeSZjT6P7RfhvMkyPK+B9Jg0J98kLRo6Y w=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgsFAGMAhVOtJV2Q/2dsb2JhbABZgweBKsIcAYEOFnSCJgEBBB1cEAIBCDsLMiUCBAENBYhC1VgXjlIHhEAEhF6FCYkhhmuTJ4F4gUCCLw X-IronPort-AV: E=Sophos;i="4.98,922,1392163200"; d="scan'208";a="328276400" Received: from rcdn-core-8.cisco.com ([173.37.93.144]) by rcdn-iport-2.cisco.com with ESMTP; 27 May 2014 21:18:20 +0000 Received: from xhc-rcd-x07.cisco.com (xhc-rcd-x07.cisco.com [173.37.183.81]) by rcdn-core-8.cisco.com (8.14.5/8.14.5) with ESMTP id s4RLIKTA028477 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=FAIL); Tue, 27 May 2014 21:18:20 GMT Received: from xmb-aln-x02.cisco.com ([169.254.5.121]) by xhc-rcd-x07.cisco.com ([173.37.183.81]) with mapi id 14.03.0123.003; Tue, 27 May 2014 16:18:20 -0500 From: "Eric Vyncke (evyncke)" To: Lizhenbin , "Alvaro Retana (aretana)" Thread-Topic: [spring] Comments on Section 2.3//WG Adoption Call for draft-martin-spring-segment-routing-ipv6-use-cases Thread-Index: AQHPVKQSt/IsNnMPeU+iEmFX8IG8H5tVrmwA Date: Tue, 27 May 2014 21:18:18 +0000 Message-ID: References: <201403241946.s2OJjvV90789@magenta.juniper.net> <5A5B4DE12C0DAC44AF501CD9A2B01A8D08204136@nkgeml506-mbx.china.huawei.com> In-Reply-To: <5A5B4DE12C0DAC44AF501CD9A2B01A8D08204136@nkgeml506-mbx.china.huawei.com> Accept-Language: fr-FR, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/14.4.1.140326 x-originating-ip: [10.55.185.77] Content-Type: text/plain; charset="iso-8859-1" Content-ID: <6A5F38BC0AD6AA4B808280C2C88282B8@emea.cisco.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Archived-At: http://mailarchive.ietf.org/arch/msg/spring/7RrSIEuTFSvG_xuvljayd8X_0Wg Cc: "spring@ietf.org" Subject: Re: [spring] Comments on Section 2.3//WG Adoption Call for draft-martin-spring-segment-routing-ipv6-use-cases X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 27 May 2014 21:18:30 -0000 On 10/04/14 12:02, "Lizhenbin" wrote: > >These sections describe the use cases of segment routing in data center >network. >1. I wonder if now there is a hot discussion on using IPv6 in data >center. What is the drive to introduce IPv6 into data center, lack of IP >addresses? Huh? Of course, there is a huge interest of IPv6 in DC... Facebook (search for Paul S's presentation at World V6 Congress) is already at 75% of IPv6 traffic in their DC and they want to go to 100% before the end of the year. Reason: lack of IP addresses. And, I am sure that you know that Microsoft, Linux, ... All of them have IPv6 enabled by default. So, I am sure that your employer DC has at least some link-local traffic over IPv6 or more -=E9ric > From nobody Fri May 30 12:38:18 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E3F121A0A41 for ; Fri, 30 May 2014 12:38:14 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.601 X-Spam-Level: X-Spam-Status: No, score=-2.601 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id o9GgqWK_Q-Po for ; Fri, 30 May 2014 12:38:12 -0700 (PDT) Received: from na01-bl2-obe.outbound.protection.outlook.com (mail-bl2lp0207.outbound.protection.outlook.com [207.46.163.207]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id D1CE71A01CB for ; Fri, 30 May 2014 12:37:59 -0700 (PDT) Received: from BL2PR05MB210.namprd05.prod.outlook.com (10.242.198.145) by CO1PR05MB441.namprd05.prod.outlook.com (10.141.73.147) with Microsoft SMTP Server (TLS) id 15.0.949.11; Fri, 30 May 2014 19:37:46 +0000 Received: from BL2PR05MB210.namprd05.prod.outlook.com ([169.254.6.98]) by BL2PR05MB210.namprd05.prod.outlook.com ([169.254.6.98]) with mapi id 15.00.0949.001; Fri, 30 May 2014 19:37:45 +0000 From: Yakov Rekhter To: "Eric Vyncke (evyncke)" , Hannes Gredler , "Stefano Previdi (sprevidi)" Thread-Topic: [spring] WG Adoption Call for draft-martin-spring-segment-routing-ipv6-use-cases Thread-Index: AQHPSRpHfoJZL7ndH0WDfBS+IHX9iprz+/GAgALKkNeAAFd2AIAAO5eAgF4+uYCABE/0kA== Date: Fri, 30 May 2014 19:37:45 +0000 Message-ID: References: <201403261739.s2QHd5V66734@magenta.juniper.net> <9C7637CE-C51C-49FA-BAFD-DB30C732B31D@cisco.com> <201403281736.s2SHawV72952@magenta.juniper.net> <20140328212333.GE30644@juniper.net> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [66.129.239.13] x-microsoft-antispam: BL:0; ACTION:Default; RISK:Low; SCL:0; SPMLVL:NotSpam; PCL:0; RULEID: x-forefront-prvs: 02272225C5 x-forefront-antispam-report: SFV:NSPM; SFS:(6009001)(428001)(199002)(13464003)(189002)(479174003)(377454003)(51704005)(24454002)(66066001)(76482001)(31966008)(74316001)(101416001)(86362001)(4396001)(21056001)(64706001)(20776003)(80022001)(46102001)(83072002)(74662001)(79102001)(85852003)(87936001)(33646001)(2656002)(1941001)(16799955002)(50986999)(92566001)(15975445006)(77982001)(74502001)(19580395003)(83322001)(81542001)(99286001)(99396002)(54356999)(81342001)(76176999)(19580405001)(24736002); DIR:OUT; SFP:; SCL:1; SRVR:CO1PR05MB441; H:BL2PR05MB210.namprd05.prod.outlook.com; FPR:; MLV:sfv; PTR:InfoNoRecords; A:1; MX:1; LANG:en; received-spf: None (: juniper.net does not designate permitted sender hosts) authentication-results: spf=none (sender IP is ) smtp.mailfrom=yakov@juniper.net; Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: juniper.net Archived-At: http://mailarchive.ietf.org/arch/msg/spring/MDjC7eEG9x65AnZFZ3DhjqtEoas Cc: "Alvaro Retana \(aretana\)" , "" Subject: Re: [spring] WG Adoption Call for draft-martin-spring-segment-routing-ipv6-use-cases X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 30 May 2014 19:38:15 -0000 Eric, > -----Original Message----- > From: Eric Vyncke (evyncke) [mailto:evyncke@cisco.com] > Sent: Tuesday, May 27, 2014 2:37 PM > To: Hannes Gredler; Stefano Previdi (sprevidi) > Cc: Yakov Rekhter; ; Alvaro Retana (aretana) > Subject: Re: [spring] WG Adoption Call for draft-martin-spring-segment- > routing-ipv6-use-cases >=20 > Late reply to Hannes point: >=20 > On 28/03/14 22:23, "Hannes Gredler" wrote: > > > >the real question is what percentage of public Internet routers > > > >1) does have MPLS hardware forwarding support > >2) does have IPv6-SR hardware forwarding support. > > > >And >=20 > Regarding the IPv6-SR compatibility, as SRH is basically 'loose source > routing', it only requires: > - SRH processing by all SR-enabled router whose segment id is in the > SRH, typically some PE routers. Those will need to be modified indeed > but those will be minority > - SRH forwarding (i.e. Not parsing or acting upon the SRH) for all > remaining routers. Those will be the majority If indeed, as you said above, only "minory" of the routers (e.g., only PEs)= =20 would be able to process IPv6 SRH, then SR would *not* be able to support=20 such use cases as various flavors of local protection, and traffic engineer= ing=20 (except for EPE). Conversely, support for various flavors of local=20 protection and/or traffic engineering (other than EPE) would require=20 all routers to support IPv6 SRH. Yakov. >=20 > The latter is currently OK, I wrote a small script > https://www.vyncke.org/sr.php which basically sends a dummy SRH to your > browser (requirement is that your browser/clients supports IPv6) and > after a dozen of tests, all were successful. While this is not a > mathematical proof, this is good enough from my engineer's point of > view >=20 > Hope this helps >=20 > -=E9ric From nobody Fri May 30 12:50:22 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 8DE1E1A8745 for ; Fri, 30 May 2014 12:50:21 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.278 X-Spam-Level: X-Spam-Status: No, score=-1.278 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, FM_FORGED_GMAIL=0.622, FREEMAIL_FROM=0.001, SPF_PASS=-0.001] autolearn=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 XJkpPGAlhD2B for ; Fri, 30 May 2014 12:50:20 -0700 (PDT) Received: from mail-ig0-x22b.google.com (mail-ig0-x22b.google.com [IPv6:2607:f8b0:4001:c05::22b]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 3E08D1A8737 for ; Fri, 30 May 2014 12:50:20 -0700 (PDT) Received: by mail-ig0-f171.google.com with SMTP id c1so1231898igq.4 for ; Fri, 30 May 2014 12:50:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type:content-transfer-encoding; bh=55fAZiuRAzDmxLP8vokpNN6VB23tVJRdY5FPAb12M7Q=; b=RJXDADmgcEyAlKfjvPoN3nCSQ9slhPQgbg47scupIg3fZGKVR0MoT1Q4OVNMGRwRew nS2+QGpgzZjxPTDnA3O6SIuhsuAPYJOtQupHba+V+NVv0nlKrGubNKcrLZ/0Zo27Soks 31o+fx9u8a93D8gIPZqVbVedBM0B2eRyxipAEoBZcOPwnxiCygACkou2XnK/VJpoYpCg z4Dz5MH2SO9HlG6AlmyNbGvEc+mlI8UghEBBJqZexbyZDiku7DlStxU/ZFQ/inM08tMQ iCqQojXn/1V9zl9pfWUe0OsqcjNYf8r3ltxbxf8zGwKkprX9Jhic+7CVv+c10cnpzu+O AP+Q== MIME-Version: 1.0 X-Received: by 10.43.160.137 with SMTP id mc9mr6954078icc.4.1401479415382; Fri, 30 May 2014 12:50:15 -0700 (PDT) Sender: rraszuk@gmail.com Received: by 10.64.242.198 with HTTP; Fri, 30 May 2014 12:50:15 -0700 (PDT) In-Reply-To: References: <201403261739.s2QHd5V66734@magenta.juniper.net> <9C7637CE-C51C-49FA-BAFD-DB30C732B31D@cisco.com> <201403281736.s2SHawV72952@magenta.juniper.net> <20140328212333.GE30644@juniper.net> Date: Fri, 30 May 2014 21:50:15 +0200 X-Google-Sender-Auth: lTKEve_RtS645iDr99wp7OlJaZ4 Message-ID: From: Robert Raszuk To: Yakov Rekhter Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Archived-At: http://mailarchive.ietf.org/arch/msg/spring/N8y59_Pd0NB55FH0XZWx25re_68 Cc: Hannes Gredler , "Eric Vyncke \(evyncke\)" , "" , "Stefano Previdi \(sprevidi\)" , "Alvaro Retana \(aretana\)" Subject: Re: [spring] WG Adoption Call for draft-martin-spring-segment-routing-ipv6-use-cases X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 30 May 2014 19:50:21 -0000 Hi Yakov, I read Eric's email and included its main point a bit differently. It is known for a fact that in large network (say 1000 routers) it is sufficient to force traffic only via few key core boxes (perhaps 10 or so) in order to perform good traffic engineering. With SR it is possible while in classical RSVP-TE it is not - simply due hop by hop signalling nature of the latter. His reference to PE was IMHO just an example without intention to provide exhaustive list. For local protection with basic IPv6 network I would rather recommend use of LFA solutions which again do not require anything to do with SRH processing - so his SRH forwarding only case for vast majority of routers in a given domain remains sound and valid. Best regards, R. On Fri, May 30, 2014 at 9:37 PM, Yakov Rekhter wrote: > Eric, > >> -----Original Message----- >> From: Eric Vyncke (evyncke) [mailto:evyncke@cisco.com] >> Sent: Tuesday, May 27, 2014 2:37 PM >> To: Hannes Gredler; Stefano Previdi (sprevidi) >> Cc: Yakov Rekhter; ; Alvaro Retana (aretana) >> Subject: Re: [spring] WG Adoption Call for draft-martin-spring-segment- >> routing-ipv6-use-cases >> >> Late reply to Hannes point: >> >> On 28/03/14 22:23, "Hannes Gredler" wrote: >> > >> >the real question is what percentage of public Internet routers >> > >> >1) does have MPLS hardware forwarding support >> >2) does have IPv6-SR hardware forwarding support. >> > >> >And >> >> Regarding the IPv6-SR compatibility, as SRH is basically 'loose source >> routing', it only requires: >> - SRH processing by all SR-enabled router whose segment id is in the >> SRH, typically some PE routers. Those will need to be modified indeed >> but those will be minority >> - SRH forwarding (i.e. Not parsing or acting upon the SRH) for all >> remaining routers. Those will be the majority > > If indeed, as you said above, only "minory" of the routers (e.g., only PE= s) > would be able to process IPv6 SRH, then SR would *not* be able to support > such use cases as various flavors of local protection, and traffic engine= ering > (except for EPE). Conversely, support for various flavors of local > protection and/or traffic engineering (other than EPE) would require > all routers to support IPv6 SRH. > > Yakov. > >> >> The latter is currently OK, I wrote a small script >> https://www.vyncke.org/sr.php which basically sends a dummy SRH to your >> browser (requirement is that your browser/clients supports IPv6) and >> after a dozen of tests, all were successful. While this is not a >> mathematical proof, this is good enough from my engineer's point of >> view >> >> Hope this helps >> >> -=C3=A9ric > > _______________________________________________ > spring mailing list > spring@ietf.org > https://www.ietf.org/mailman/listinfo/spring From nobody Fri May 30 12:54:53 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 969971A8765 for ; Fri, 30 May 2014 12:54:48 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.602 X-Spam-Level: X-Spam-Status: No, score=-2.602 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id IXe32evsC0vq for ; Fri, 30 May 2014 12:54:41 -0700 (PDT) Received: from na01-by2-obe.outbound.protection.outlook.com (mail-by2lp0237.outbound.protection.outlook.com [207.46.163.237]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 4E1EB1A8764 for ; Fri, 30 May 2014 12:54:41 -0700 (PDT) Received: from SN2PRD0510HT001.namprd05.prod.outlook.com (10.255.116.36) by BN1PR05MB170.namprd05.prod.outlook.com (10.255.205.22) with Microsoft SMTP Server (TLS) id 15.0.949.11; Fri, 30 May 2014 19:54:35 +0000 Received: from [172.29.64.170] (193.110.55.15) by pod51010.outlook.com (10.255.116.36) with Microsoft SMTP Server (TLS) id 14.16.459.0; Fri, 30 May 2014 19:54:33 +0000 MIME-Version: 1.0 (Apple Message framework v1283) Content-Type: text/plain; charset="iso-8859-1" From: Hannes Gredler In-Reply-To: Date: Fri, 30 May 2014 21:54:28 +0200 Content-Transfer-Encoding: quoted-printable Message-ID: References: <201403261739.s2QHd5V66734@magenta.juniper.net> <9C7637CE-C51C-49FA-BAFD-DB30C732B31D@cisco.com> <201403281736.s2SHawV72952@magenta.juniper.net> <20140328212333.GE30644@juniper.net> To: Eric Vyncke X-Mailer: Apple Mail (2.1283) X-Originating-IP: [193.110.55.15] X-Microsoft-Antispam: BL:0; ACTION:Default; RISK:Low; SCL:0; SPMLVL:NotSpam; PCL:0; RULEID: X-Forefront-PRVS: 02272225C5 X-Forefront-Antispam-Report: SFV:NSPM; SFS:(6009001)(428001)(479174003)(377454003)(51704005)(24454002)(199002)(189002)(81342001)(81542001)(76482001)(57306001)(77982001)(36756003)(62966002)(47776003)(20776003)(99396002)(83716003)(33656002)(50466002)(85852003)(101416001)(83072002)(21056001)(104166001)(23756003)(92566001)(88136002)(92726001)(93916002)(86362001)(64706001)(76176999)(77096999)(77156001)(87286001)(50986999)(66066001)(80022001)(15975445006)(19580395003)(79102001)(16799955002)(4396001)(50226001)(19580405001)(82746002)(83322001)(31966008)(87936001)(89996001)(74662001)(46102001)(74502001)(104396001); DIR:OUT; SFP:; SCL:1; SRVR:BN1PR05MB170; H:SN2PRD0510HT001.namprd05.prod.outlook.com; FPR:; MLV:sfv; PTR:InfoNoRecords; A:1; MX:1; LANG:en; Received-SPF: None (: juniper.net does not designate permitted sender hosts) Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=hannes@juniper.net; X-OriginatorOrg: juniper.net Archived-At: http://mailarchive.ietf.org/arch/msg/spring/iVwjR_5LzCrkzLzwtPe91Qsf5Jg Cc: Yakov Rekhter , "" , "Stefano Previdi \(sprevidi\)" , "Alvaro Retana \(aretana\)" Subject: Re: [spring] WG Adoption Call for draft-martin-spring-segment-routing-ipv6-use-cases X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 30 May 2014 19:54:48 -0000 eric, if *just* loose source routing is required, then the same can get = achieved using nested IP tunnels. no need for new architecture, no need for new = signaling protocol extensions, perhaps some re-spin of forwarding hardware in order to push the large = tunnel strings. . point is that you can't get away with loose source routing semantics for = supporting all the SR use-cases. thus the current 6man draft needs rework in order to be somewhat feature congruent to the mpls-dataplane, which stefano has agreed to post _soon_. i hope it does not take another 12 months (e.g. like the last time when we have asked for the data ipv6-sr plane = specification presented at mplswc2013 - actual publication data was feb 2014 ...) -=20= tx, /hannes On May 27, 2014, at 8:36 PM, Eric Vyncke (evyncke) wrote: > Late reply to Hannes point: >=20 > On 28/03/14 22:23, "Hannes Gredler" wrote: >>=20 >> the real question is what percentage of public Internet routers >>=20 >> 1) does have MPLS hardware forwarding support >> 2) does have IPv6-SR hardware forwarding support. >>=20 >> And >=20 > Regarding the IPv6-SR compatibility, as SRH is basically 'loose source > routing', it only requires: > - SRH processing by all SR-enabled router whose segment id is in the = SRH, > typically some PE routers. Those will need to be modified indeed but = those > will be minority > - SRH forwarding (i.e. Not parsing or acting upon the SRH) for all > remaining routers. Those will be the majority >=20 > The latter is currently OK, I wrote a small script > https://www.vyncke.org/sr.php which basically sends a dummy SRH to = your > browser (requirement is that your browser/clients supports IPv6) and = after > a dozen of tests, all were successful. While this is not a = mathematical > proof, this is good enough from my engineer's point of view >=20 > Hope this helps >=20 > -=E9ric >=20 From nobody Fri May 30 13:04:07 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 675F81A6EE7 for ; Fri, 30 May 2014 13:04:06 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.278 X-Spam-Level: X-Spam-Status: No, score=-1.278 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, FM_FORGED_GMAIL=0.622, FREEMAIL_FROM=0.001, SPF_PASS=-0.001] autolearn=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 S4eC3BtsFcIP for ; Fri, 30 May 2014 13:04:05 -0700 (PDT) Received: from mail-ig0-x22f.google.com (mail-ig0-x22f.google.com [IPv6:2607:f8b0:4001:c05::22f]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 559FC1A6EE0 for ; Fri, 30 May 2014 13:04:05 -0700 (PDT) Received: by mail-ig0-f175.google.com with SMTP id uq10so1241245igb.8 for ; Fri, 30 May 2014 13:04:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=rCvVfh2xG+SgpG8h2DOoeng+eBBMziv0CDntJUsnezU=; b=AGPy89eJtgb34rokQbKtPWXwHOJhG5/sGKFnckBVQzhY/afyDe+nCw2r8JKyKcKnPz Zbt6ERlQfD6ZQcQLEmy5YkBVDnQvIgovpyI4DA+cMEN2kl9Mw8tvXVeo4B3/WqXGqwA9 GCgTTLOkD0y8td/Ul4kLb0BMWWdb3Ki2i8IYinE8f2p3DWlKum+/EgLF7yHWOdwsxfJa xzcK03jdGVoQZmEndxLnqWTxn5EG9tUyw+ZSLrc3pdP5iI3ogKsObMqAp9r9+DAuI7mJ R8rE0P2L+n179c5HVTR0jbPTgu3g0AfpPDk4YpfpvOhnYQLOJd6EnCqvA27+a+3pTHLZ EFMg== MIME-Version: 1.0 X-Received: by 10.50.114.194 with SMTP id ji2mr8770110igb.21.1401480240713; Fri, 30 May 2014 13:04:00 -0700 (PDT) Sender: rraszuk@gmail.com Received: by 10.64.242.198 with HTTP; Fri, 30 May 2014 13:04:00 -0700 (PDT) In-Reply-To: References: <201403261739.s2QHd5V66734@magenta.juniper.net> <9C7637CE-C51C-49FA-BAFD-DB30C732B31D@cisco.com> <201403281736.s2SHawV72952@magenta.juniper.net> <20140328212333.GE30644@juniper.net> Date: Fri, 30 May 2014 22:04:00 +0200 X-Google-Sender-Auth: I5jbH8_HaEawUihujLhlZrRC-MA Message-ID: From: Robert Raszuk To: Hannes Gredler Content-Type: text/plain; charset=UTF-8 Archived-At: http://mailarchive.ietf.org/arch/msg/spring/QS0pYquQFtGmM3zJUGVHdGh51RE Cc: Yakov Rekhter , Eric Vyncke , "" , "Stefano Previdi \(sprevidi\)" , "Alvaro Retana \(aretana\)" Subject: Re: [spring] WG Adoption Call for draft-martin-spring-segment-routing-ipv6-use-cases X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 30 May 2014 20:04:06 -0000 Hey Hannes, > if *just* loose source routing is required, then the same can get achieved > using nested IP tunnels. I would agree with above. In fact one could state a question which encap would be more efficient two IPv6 extension headers or 6 IPv4 headers :) Also data plane processing wise one could perhaps observe that flexible handling of multi level IPv4 headers is already supported today in a lot of deployed hardware .... > point is that you can't get away with loose source routing semantics for > supporting all the SR use-cases. Care to list those ? Perhaps for sake of documentation it may turn helpful. Maybe for simplicity just limit those use cases to IP forwarding paradigm only :) Thx, R. From nobody Fri May 30 13:09:03 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id B1EBA1A0B77 for ; Fri, 30 May 2014 13:09:02 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.902 X-Spam-Level: X-Spam-Status: No, score=-1.902 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 8ZCkaZ0T4aUB for ; Fri, 30 May 2014 13:09:00 -0700 (PDT) Received: from na01-bn1-obe.outbound.protection.outlook.com (mail-bn1lp0142.outbound.protection.outlook.com [207.46.163.142]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id EFECB1A04C2 for ; Fri, 30 May 2014 13:08:59 -0700 (PDT) Received: from CH1PRD0510HT002.namprd05.prod.outlook.com (10.255.150.37) by BN1PR05MB123.namprd05.prod.outlook.com (10.255.199.27) with Microsoft SMTP Server (TLS) id 15.0.944.11; Fri, 30 May 2014 20:08:54 +0000 Received: from [172.29.64.170] (193.110.55.15) by pod51010.outlook.com (10.255.150.37) with Microsoft SMTP Server (TLS) id 14.16.459.0; Fri, 30 May 2014 20:08:53 +0000 MIME-Version: 1.0 (Apple Message framework v1283) Content-Type: text/plain; charset="windows-1252" From: Hannes Gredler In-Reply-To: Date: Fri, 30 May 2014 22:08:48 +0200 Content-Transfer-Encoding: quoted-printable Message-ID: <0861CC6C-8737-4ED5-8B0C-E810438AEE3A@juniper.net> References: <201403261739.s2QHd5V66734@magenta.juniper.net> <9C7637CE-C51C-49FA-BAFD-DB30C732B31D@cisco.com> <201403281736.s2SHawV72952@magenta.juniper.net> <20140328212333.GE30644@juniper.net> To: Robert Raszuk X-Mailer: Apple Mail (2.1283) X-Originating-IP: [193.110.55.15] X-Microsoft-Antispam: BL:0; ACTION:Default; RISK:Low; SCL:0; SPMLVL:NotSpam; PCL:0; RULEID: X-Forefront-PRVS: 02272225C5 X-Forefront-Antispam-Report: SFV:NSPM; SFS:(6009001)(428001)(24454002)(13464003)(199002)(51704005)(37854004)(377454003)(479174003)(189002)(16799955002)(83716003)(46102001)(79102001)(4396001)(86362001)(50226001)(76482001)(62966002)(77982001)(57306001)(101416001)(81542001)(92726001)(81342001)(83072002)(104166001)(88136002)(15975445006)(77156001)(36756003)(23746002)(64706001)(99396002)(92566001)(50986999)(82746002)(21056001)(83322001)(80022001)(20776003)(31966008)(47776003)(87286001)(77096999)(93916002)(19580395003)(89996001)(76176999)(74662001)(33656002)(74502001)(19580405001)(85852003)(50466002)(87936001)(66066001)(104396001); DIR:OUT; SFP:; SCL:1; SRVR:BN1PR05MB123; H:CH1PRD0510HT002.namprd05.prod.outlook.com; FPR:; MLV:sfv; PTR:InfoNoRecords; A:1; MX:1; LANG:en; Received-SPF: None (: juniper.net does not designate permitted sender hosts) Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=hannes@juniper.net; X-OriginatorOrg: juniper.net Archived-At: http://mailarchive.ietf.org/arch/msg/spring/963Z7Wa2hWoyy1pXxw8ZBOtpJSE Cc: Yakov Rekhter , "Eric Vyncke \(evyncke\)" , "" , "Stefano Previdi \(sprevidi\)" , "Alvaro Retana \(aretana\)" Subject: Re: [spring] WG Adoption Call for draft-martin-spring-segment-routing-ipv6-use-cases X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 30 May 2014 20:09:02 -0000 robert, On May 30, 2014, at 9:50 PM, Robert Raszuk wrote: > Hi Yakov, >=20 > I read Eric's email and included its main point a bit differently. >=20 > It is known for a fact that in large network (say 1000 routers) it is > sufficient to force traffic only via few key core boxes (perhaps 10 or > so) in order to perform good traffic engineering. i do not share that view:=20 we have heard of many customer requirements requiring to to disjoint = routing of SIGTRAN traffic down to the PE level. IOW pretty much every router needs to have support for the new *expensive* data plane. > With SR it is possible while in classical RSVP-TE it is not - simply > due hop by hop signalling nature of the latter. with LSP hierarchy we can solve pretty much any scaling problem, right ? > His reference to PE was IMHO just an example without intention to > provide exhaustive list. >=20 > For local protection with basic IPv6 network I would rather recommend > use of LFA solutions which again do not require anything to do with > SRH processing - so his SRH forwarding only case for vast majority of > routers in a given domain remains sound and valid. the trouble with LFA technology and 100% backup coverage is a bit like star-wars =85 lots of episodes ;-) Episode 1: - LFA is not deployable due to the algorithm not consider what is an operational feasible path (think of backup of a oc-768 with a oc-3). so we need: Episode 2: - LFA + policy (manageability draft) trouble is now we have eliminated many paths due to policy reasons: so we need something to increase path-diversity by reusing existing tunnels - which gets us to Episode 3: - R-LFA it is still possible to construct pathologic topologies which do not provide 100% coverage. Episode 4: - R-LFA +DF concerns about micro-loops and desire to place SPT backup traffic on the post-convergence-path leads us to Episode 5: - TI-LFA now my question is: would you bet the farm on that there won't be another episode (i.e. things we haven't considered so far). i won't, given that track record of misguided hopes and believes. /hannes > On Fri, May 30, 2014 at 9:37 PM, Yakov Rekhter = wrote: >> Eric, >>=20 >>> -----Original Message----- >>> From: Eric Vyncke (evyncke) [mailto:evyncke@cisco.com] >>> Sent: Tuesday, May 27, 2014 2:37 PM >>> To: Hannes Gredler; Stefano Previdi (sprevidi) >>> Cc: Yakov Rekhter; ; Alvaro Retana (aretana) >>> Subject: Re: [spring] WG Adoption Call for = draft-martin-spring-segment- >>> routing-ipv6-use-cases >>>=20 >>> Late reply to Hannes point: >>>=20 >>> On 28/03/14 22:23, "Hannes Gredler" wrote: >>>>=20 >>>> the real question is what percentage of public Internet routers >>>>=20 >>>> 1) does have MPLS hardware forwarding support >>>> 2) does have IPv6-SR hardware forwarding support. >>>>=20 >>>> And >>>=20 >>> Regarding the IPv6-SR compatibility, as SRH is basically 'loose = source >>> routing', it only requires: >>> - SRH processing by all SR-enabled router whose segment id is in the >>> SRH, typically some PE routers. Those will need to be modified = indeed >>> but those will be minority >>> - SRH forwarding (i.e. Not parsing or acting upon the SRH) for all >>> remaining routers. Those will be the majority >>=20 >> If indeed, as you said above, only "minory" of the routers (e.g., = only PEs) >> would be able to process IPv6 SRH, then SR would *not* be able to = support >> such use cases as various flavors of local protection, and traffic = engineering >> (except for EPE). Conversely, support for various flavors of local >> protection and/or traffic engineering (other than EPE) would require >> all routers to support IPv6 SRH. >>=20 >> Yakov. >>=20 >>>=20 >>> The latter is currently OK, I wrote a small script >>> https://www.vyncke.org/sr.php which basically sends a dummy SRH to = your >>> browser (requirement is that your browser/clients supports IPv6) and >>> after a dozen of tests, all were successful. While this is not a >>> mathematical proof, this is good enough from my engineer's point of >>> view >>>=20 >>> Hope this helps >>>=20 >>> -=E9ric >>=20 >> _______________________________________________ >> spring mailing list >> spring@ietf.org >> https://www.ietf.org/mailman/listinfo/spring From nobody Fri May 30 13:29:23 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id B4F621A8785 for ; Fri, 30 May 2014 13:29:21 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.278 X-Spam-Level: X-Spam-Status: No, score=-1.278 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, FM_FORGED_GMAIL=0.622, FREEMAIL_FROM=0.001, SPF_PASS=-0.001] autolearn=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 yZ60dtsLSCqy for ; Fri, 30 May 2014 13:29:20 -0700 (PDT) Received: from mail-ie0-x230.google.com (mail-ie0-x230.google.com [IPv6:2607:f8b0:4001:c03::230]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id A23291A877F for ; Fri, 30 May 2014 13:29:20 -0700 (PDT) Received: by mail-ie0-f176.google.com with SMTP id rl12so2177529iec.7 for ; Fri, 30 May 2014 13:29:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=mc9WuPAFdEgCPMOtvrR+boSmUB1R5ZPirVvwTXYahG4=; b=iRha3Aphn671aC4fBe4HKtrJUjjcNFMHrdmabcyy2JGYhru8fvW5nw7z1jOVXsSGEH CgE0kvqV1NICQtmovWkk4jqr+Q/rnjRHFpfo1czXZjYpSGpo3NrWCY2PkNSa3bPr8FT2 Y9bCgUdGTeu5V4giMAQCxvY+iMk/4tPCoaeO2ELAAuwMxFSIuCnU79CilzpezI6CkLFi jDmZK4pZJVT1gf12vHSi4qEcpRBbbJ7bHaJCKKd8w53cbIJJFQD2SuJOOU4oxEsICu+v jKKZ5tveZ0CZQA4P7qItWNTjQ1DjrTCeAYxF5OkRAU/0wRe7qoW3eyvOWEbQuca6f/7w v0Kg== MIME-Version: 1.0 X-Received: by 10.43.80.5 with SMTP id zs5mr17977036icb.72.1401481756142; Fri, 30 May 2014 13:29:16 -0700 (PDT) Sender: rraszuk@gmail.com Received: by 10.64.242.198 with HTTP; Fri, 30 May 2014 13:29:16 -0700 (PDT) In-Reply-To: <0861CC6C-8737-4ED5-8B0C-E810438AEE3A@juniper.net> References: <201403261739.s2QHd5V66734@magenta.juniper.net> <9C7637CE-C51C-49FA-BAFD-DB30C732B31D@cisco.com> <201403281736.s2SHawV72952@magenta.juniper.net> <20140328212333.GE30644@juniper.net> <0861CC6C-8737-4ED5-8B0C-E810438AEE3A@juniper.net> Date: Fri, 30 May 2014 22:29:16 +0200 X-Google-Sender-Auth: BLDysxr3JHBx-ZdbOXq1j3I0og8 Message-ID: From: Robert Raszuk To: Hannes Gredler Content-Type: text/plain; charset=UTF-8 Archived-At: http://mailarchive.ietf.org/arch/msg/spring/9NFh86MnDGREYlNHdoCME9JE8Xs Cc: Yakov Rekhter , "Eric Vyncke \(evyncke\)" , "" , "Stefano Previdi \(sprevidi\)" , "Alvaro Retana \(aretana\)" Subject: Re: [spring] WG Adoption Call for draft-martin-spring-segment-routing-ipv6-use-cases X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 30 May 2014 20:29:21 -0000 Hi Hannes, > we have heard of many customer requirements requiring to to disjoint > routing True if you are talking end to end between PEs. I have heard of those between 2004-2006 when MTR fashion was at the peak too :) And I must have missed that SR claims to address those without all nodes supporting SRH processing if you are talking PE-PE. But there are cases where to the PE level is not required for number of applications so those can be addressed without all nodes handling SRHs. Again we are not here to decide I think. If customer takes a calculator and conclude that for his need it is better to deploy MPLS data plane he will dop that no matter for SPRING or FALL brings to the table. If on the other hand he will see that just he can upgrade IOS on bunch of nodes to address his needs he will do just that. > with LSP hierarchy we can solve pretty much any scaling problem, right ? Yep - never claimed we can't :). But it all comes with cost and complexity. Even if some of us can play with LSPs easy I would not state that we should force everyone else into that art. > Episode 1: - LFA > is not deployable due to the algorithm not > consider what is an operational feasible > path (think of backup of a oc-768 with a oc-3). If someone has such mix of active core links I would not worry about LFA, but about redesign of the network first :) > so we need: > > Episode 2: - LFA + policy (manageability draft) > > trouble is now we have eliminated many paths > due to policy reasons: so we need something > to increase path-diversity by reusing > existing tunnels - which gets us to As you know both can be automated quite easily. > Episode 3: - R-LFA > it is still possible to construct pathologic > topologies which do not provide 100% coverage. Is the goal to address pathological cases which probability of happening in real life is equal to any of two of us visiting Mars any time soon ... > now my question is: would you bet the farm on that there won't > be another episode (i.e. things we haven't considered so far). > i won't, given that track record of misguided hopes and believes. I am not sure what's the point of that list. If you are stating that with hop by hop LSP crafting you have more control - of course you are rigth and no one will argue. But do you need such fine art or you are ok with lighter and less expensive alternatives. Frankly I like control plane based solutions vs data plane .. it is just that perhaps we should more focus on making the former much easier for operators then they are today. Cheers, R. From nobody Fri May 30 13:29:46 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 2CAEE1A8030 for ; Fri, 30 May 2014 13:29:44 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.602 X-Spam-Level: X-Spam-Status: No, score=-2.602 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id JJRr2RgJoqKJ for ; Fri, 30 May 2014 13:29:42 -0700 (PDT) Received: from na01-by2-obe.outbound.protection.outlook.com (mail-by2lp0238.outbound.protection.outlook.com [207.46.163.238]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 6759A1A7035 for ; Fri, 30 May 2014 13:29:42 -0700 (PDT) Received: from CH1PRD0510HT003.namprd05.prod.outlook.com (10.255.150.38) by BN1PR05MB439.namprd05.prod.outlook.com (10.141.58.22) with Microsoft SMTP Server (TLS) id 15.0.944.11; Fri, 30 May 2014 20:29:37 +0000 Received: from [172.29.64.170] (193.110.55.15) by pod51010.outlook.com (10.255.150.38) with Microsoft SMTP Server (TLS) id 14.16.459.0; Fri, 30 May 2014 20:29:35 +0000 MIME-Version: 1.0 (Apple Message framework v1283) Content-Type: text/plain; charset="us-ascii" From: Hannes Gredler In-Reply-To: Date: Fri, 30 May 2014 22:29:30 +0200 Content-Transfer-Encoding: quoted-printable Message-ID: References: <201403261739.s2QHd5V66734@magenta.juniper.net> <9C7637CE-C51C-49FA-BAFD-DB30C732B31D@cisco.com> <201403281736.s2SHawV72952@magenta.juniper.net> <20140328212333.GE30644@juniper.net> To: Robert Raszuk X-Mailer: Apple Mail (2.1283) X-Originating-IP: [193.110.55.15] X-Microsoft-Antispam: BL:0; ACTION:Default; RISK:Low; SCL:0; SPMLVL:NotSpam; PCL:0; RULEID: X-Forefront-PRVS: 02272225C5 X-Forefront-Antispam-Report: SFV:NSPM; SFS:(6009001)(428001)(199002)(189002)(24454002)(377454003)(51704005)(76482001)(101416001)(15975445006)(97756001)(46102001)(77096999)(80022001)(92726001)(4396001)(36756003)(66066001)(57306001)(87936001)(50226001)(46406003)(74662001)(50466002)(87286001)(83716003)(79102001)(20776003)(15202345003)(81542001)(64706001)(92566001)(19580395003)(81342001)(74502001)(62966002)(104166001)(93916002)(88136002)(31966008)(33656002)(21056001)(85852003)(77156001)(89996001)(77982001)(82746002)(99396002)(50986999)(86362001)(23726002)(47776003)(83322001)(76176999)(83072002)(104396001)(579124002); DIR:OUT; SFP:; SCL:1; SRVR:BN1PR05MB439; H:CH1PRD0510HT003.namprd05.prod.outlook.com; FPR:; MLV:sfv; PTR:InfoNoRecords; A:1; MX:1; LANG:en; Received-SPF: None (: juniper.net does not designate permitted sender hosts) Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=hannes@juniper.net; X-OriginatorOrg: juniper.net Archived-At: http://mailarchive.ietf.org/arch/msg/spring/mIXctpUacWoTlQTqfFeFJKknX_U Cc: Yakov Rekhter , Eric Vyncke , "" , "Stefano Previdi \(sprevidi\)" , "Alvaro Retana \(aretana\)" Subject: Re: [spring] WG Adoption Call for draft-martin-spring-segment-routing-ipv6-use-cases X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 30 May 2014 20:29:44 -0000 hi robert, On May 30, 2014, at 10:04 PM, Robert Raszuk wrote: >> point is that you can't get away with loose source routing semantics = for >> supporting all the SR use-cases. >=20 > Care to list those ? Perhaps for sake of documentation it may turn > helpful. Maybe for simplicity just limit those use cases to IP > forwarding paradigm only :) just watch for use-cases which require an 'adjacency-label' - the 'adjacency-SID' has got 'strict routing semantics' and cannot get substituted by e.g. a node/prefix-SID which has 'loose routing = semantics' the use cases i am talking are specifically: = http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-use-cases= -00#section-3.2.1 = http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-use-cases= -00#section-4.1.2 = http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-use-cases= -00#section-4.1.3 = http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-use-cases= -00#section-4.1.4 = http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-use-cases= -00#section-4.1.5 = http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-use-cases= -00#section-4.2.1 = http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-use-cases= -00#section-4.2.2 = http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-use-cases= -00#section-6.1 = http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-use-cases= -00#section-6.2 HTH, /hannes= From nobody Fri May 30 13:42:15 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id B1CE91A87A2 for ; Fri, 30 May 2014 13:42:13 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.902 X-Spam-Level: X-Spam-Status: No, score=-1.902 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id w54YsyGmhGV5 for ; Fri, 30 May 2014 13:42:11 -0700 (PDT) Received: from na01-bn1-obe.outbound.protection.outlook.com (mail-bn1lp0141.outbound.protection.outlook.com [207.46.163.141]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 7A59D1A6EF3 for ; Fri, 30 May 2014 13:42:11 -0700 (PDT) Received: from BL2PRD0510HT003.namprd05.prod.outlook.com (10.255.100.38) by BN1PR05MB057.namprd05.prod.outlook.com (10.255.202.139) with Microsoft SMTP Server (TLS) id 15.0.949.11; Fri, 30 May 2014 20:42:05 +0000 Received: from [172.29.64.170] (193.110.55.15) by pod51010.outlook.com (10.255.100.38) with Microsoft SMTP Server (TLS) id 14.16.459.0; Fri, 30 May 2014 20:42:04 +0000 MIME-Version: 1.0 (Apple Message framework v1283) Content-Type: text/plain; charset="windows-1252" From: Hannes Gredler In-Reply-To: Date: Fri, 30 May 2014 22:42:00 +0200 Content-Transfer-Encoding: quoted-printable Message-ID: References: <201403261739.s2QHd5V66734@magenta.juniper.net> <9C7637CE-C51C-49FA-BAFD-DB30C732B31D@cisco.com> <201403281736.s2SHawV72952@magenta.juniper.net> <20140328212333.GE30644@juniper.net> <0861CC6C-8737-4ED5-8B0C-E810438AEE3A@juniper.net> To: Robert Raszuk X-Mailer: Apple Mail (2.1283) X-Originating-IP: [193.110.55.15] X-Microsoft-Antispam: BL:0; ACTION:Default; RISK:Low; SCL:0; SPMLVL:NotSpam; PCL:0; RULEID: X-Forefront-PRVS: 02272225C5 X-Forefront-Antispam-Report: SFV:NSPM; SFS:(6009001)(428001)(189002)(199002)(24454002)(51704005)(37854004)(377454003)(104166001)(74662001)(33656002)(31966008)(93916002)(83072002)(74502001)(57306001)(50466002)(85852003)(77156001)(4396001)(86362001)(82746002)(50226001)(36756003)(92566001)(92726001)(21056001)(89996001)(66066001)(83716003)(80022001)(64706001)(47776003)(20776003)(79102001)(46102001)(99396002)(87936001)(23746002)(88136002)(62966002)(50986999)(76482001)(83322001)(76176999)(87286001)(81542001)(81342001)(77096999)(101416001)(77982001)(104396001); DIR:OUT; SFP:; SCL:1; SRVR:BN1PR05MB057; H:BL2PRD0510HT003.namprd05.prod.outlook.com; FPR:; MLV:sfv; PTR:InfoNoRecords; MX:1; A:1; LANG:en; Received-SPF: None (: juniper.net does not designate permitted sender hosts) Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=hannes@juniper.net; X-OriginatorOrg: juniper.net Archived-At: http://mailarchive.ietf.org/arch/msg/spring/TJYpdise0ZXgCYMX_rv-llh7aN8 Cc: Yakov Rekhter , "Eric Vyncke \(evyncke\)" , "" , "Stefano Previdi \(sprevidi\)" , "Alvaro Retana \(aretana\)" Subject: Re: [spring] WG Adoption Call for draft-martin-spring-segment-routing-ipv6-use-cases X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 30 May 2014 20:42:13 -0000 On May 30, 2014, at 10:29 PM, Robert Raszuk wrote: [ =85 ] >> now my question is: would you bet the farm on that there won't >> be another episode (i.e. things we haven't considered so far). >> i won't, given that track record of misguided hopes and believes. >=20 > I am not sure what's the point of that list. If you are stating that > with hop by hop LSP crafting you have more control - of course you are > rigth and no one will argue. point is that LFA and opportunistic path-hunting technologies *always* have a gap, which was silently ignored up until it comes to deployment. boom reality check =85 i am having these 'episode' discussion since 4 years with some of my customers =85 always putting it off to the 'next release' is not something which was perceived well. > But do you need such fine art or you are ok with lighter and less > expensive alternatives. >=20 > Frankly I like control plane based solutions vs data plane .. it is > just that perhaps we should more focus on making the former much > easier for operators then they are today. that and also striving for the right balance between control-plane and data-plane state. e.g. using automated-RSVP for setting up facility protection LSPs to all the next-next-hops uses the RSVP protocol in a range which is *far* away from scaling woes. one can then use SR label-blocks to get label bindings to the final destination points. - two MPLS labels (read: no fwd plane upgrade), 100% coverage. no excessive (T-LDP) sessions. app 30-50 RSVP sessions even on large scale networks. /hannes= From nobody Fri May 30 13:44:51 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D28EC1A6EF3 for ; Fri, 30 May 2014 13:44:49 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.278 X-Spam-Level: X-Spam-Status: No, score=-1.278 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, FM_FORGED_GMAIL=0.622, FREEMAIL_FROM=0.001, SPF_PASS=-0.001] autolearn=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 227wNiTLPvxj for ; Fri, 30 May 2014 13:44:48 -0700 (PDT) Received: from mail-ie0-x229.google.com (mail-ie0-x229.google.com [IPv6:2607:f8b0:4001:c03::229]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 7313F1A87CD for ; Fri, 30 May 2014 13:44:48 -0700 (PDT) Received: by mail-ie0-f169.google.com with SMTP id rp18so1052742iec.14 for ; Fri, 30 May 2014 13:44:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=1w+bTX7enKSaU5nAbLXsaPfSMgITN3eCCtN5DjvcBFY=; b=rLMtj9szlkEqmXADGwDcXEVrpI1INAmuxLN46VrKf9+u4eWUW6Fv9rcvzsBoSvJPnu 2wpp2q49blMLfElx70sojrCqdgb2HL12CGbmmpA44+5Kn9VgIP05OhZU5zSLn0p/peXu mmM01jeM4RJVrhOk5P+qypa+klS+PpKk5O5ET3GA6XGGO/Y4YMOLBv+lYwQuoVXmqsO9 bYVW8O75vemIvB39HeGihSks7WelQHizbhv+Md6Q7G8YxCdtcHl8Sia9wIvtnVT5wmV7 f9pWlLGmaa64H+mIvQG9jig4jgpPH/BlNoZFSuXOO34p0ojweTK3Dn4A1UozRfc3dmNG q5ug== MIME-Version: 1.0 X-Received: by 10.50.143.8 with SMTP id sa8mr2164686igb.29.1401482683886; Fri, 30 May 2014 13:44:43 -0700 (PDT) Sender: rraszuk@gmail.com Received: by 10.64.242.198 with HTTP; Fri, 30 May 2014 13:44:43 -0700 (PDT) In-Reply-To: References: <201403261739.s2QHd5V66734@magenta.juniper.net> <9C7637CE-C51C-49FA-BAFD-DB30C732B31D@cisco.com> <201403281736.s2SHawV72952@magenta.juniper.net> <20140328212333.GE30644@juniper.net> Date: Fri, 30 May 2014 22:44:43 +0200 X-Google-Sender-Auth: t6plApWxG2Rjddym72vFYXYCqag Message-ID: From: Robert Raszuk To: Hannes Gredler Content-Type: text/plain; charset=UTF-8 Archived-At: http://mailarchive.ietf.org/arch/msg/spring/7HQSjnXuZZDrlSU2V7DfFTsF7_8 Cc: Yakov Rekhter , Eric Vyncke , "" , "Stefano Previdi \(sprevidi\)" , "Alvaro Retana \(aretana\)" Subject: Re: [spring] WG Adoption Call for draft-martin-spring-segment-routing-ipv6-use-cases X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 30 May 2014 20:44:50 -0000 > the use cases i am talking are specifically: > http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-use-cases-00#section-3.2.1 I would not say that context segment is the same as adj-SID > http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-use-cases-00#section-4.1.2 Sure if you want strict ERO granularity alternative. > http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-use-cases-00#section-4.1.3 One can easily to EPE with bunch of global SIDs pointing to different exit interfaces or VRFs. > http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-use-cases-00#section-4.1.4 > http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-use-cases-00#section-4.1.5 Yep. > http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-use-cases-00#section-4.2.1 > http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-use-cases-00#section-4.2.2 On those two I could claim one can do a lot with just global SIDs. > http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-use-cases-00#section-6.1 > http://tools.ietf.org/html/draft-filsfils-spring-segment-routing-use-cases-00#section-6.2 True. > HTH, Partially :) r. From nobody Fri May 30 16:26:04 2014 Return-Path: X-Original-To: spring@ietfa.amsl.com Delivered-To: spring@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D77021A0274 for ; Fri, 30 May 2014 16:26:00 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -3.151 X-Spam-Level: X-Spam-Status: No, score=-3.151 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HOST_EQ_MODEMCABLE=1.368, IP_NOT_FRIENDLY=0.334, RCVD_IN_DNSWL_MED=-2.3, RP_MATCHES_RCVD=-0.651, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id dOn45I_AiYTp for ; Fri, 30 May 2014 16:25:58 -0700 (PDT) Received: from cable.comcast.com (pacdcavout01.cable.comcast.com [69.241.43.119]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 7605B1A0450 for ; Fri, 30 May 2014 16:25:58 -0700 (PDT) Received: from ([24.40.56.114]) by pacdcavout01.cable.comcast.com with ESMTP id 97wm3m1.98813349; Fri, 30 May 2014 19:25:51 -0400 Received: from PACDCEXMB18.cable.comcast.com ([fe80::d85d:4248:14e8:f24e]) by PACDCEXHUB01.cable.comcast.com ([fe80::bdc4:5b5c:ee33:b058%16]) with mapi id 14.03.0181.006; Fri, 30 May 2014 19:25:51 -0400 From: "Leddy, John" To: Hannes Gredler , Robert Raszuk Thread-Topic: [spring] WG Adoption Call for draft-martin-spring-segment-routing-ipv6-use-cases Thread-Index: AQHPfF5+JsKg2hfGy0CqhLdmAtt94Q== Date: Fri, 30 May 2014 23:25:51 +0000 Message-ID: References: <201403261739.s2QHd5V66734@magenta.juniper.net> <9C7637CE-C51C-49FA-BAFD-DB30C732B31D@cisco.com> <201403281736.s2SHawV72952@magenta.juniper.net> <20140328212333.GE30644@juniper.net> <0861CC6C-8737-4ED5-8B0C-E810438AEE3A@juniper.net> In-Reply-To: <0861CC6C-8737-4ED5-8B0C-E810438AEE3A@juniper.net> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/14.4.1.140326 x-originating-ip: [68.87.16.246] Content-Type: text/plain; charset="Windows-1252" Content-ID: <7DA646C45462C14DA27E0649B25837CD@cable.comcast.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Archived-At: http://mailarchive.ietf.org/arch/msg/spring/SaX41iybOT-ft24tJ1oF61BxfYM Cc: Yakov Rekhter , "Eric Vyncke \(evyncke\)" , "" , "Stefano Previdi \(sprevidi\)" , "Alvaro Retana \(aretana\)" Subject: Re: [spring] WG Adoption Call for draft-martin-spring-segment-routing-ipv6-use-cases X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 30 May 2014 23:26:01 -0000 General comments, Given that we are talking about technology for the future of the Internet, it would be good to consider requirements of Internet traffic. LFA for Internet? With smart apps, CDNs, intelligent clients? What? We need to move to IPV6, we are. Are You? We need to do it very efficiently and enable innovation and TTM with low risk. Scale is obviously an issue. I want to enable more bandwith! Raw bandwidth to someone offnet really drives the tradeoffs for an Internet provider, move to V6 only. Now! Flexibility in what we can do internally is a big value add, V6 SR. Because V6 is how we offer services to our customers, new mandate. Commercial Intranet traffic (VPN) is high value, but really noise as far as volume. Do we build a future IP architecture on this? Channeling PeterL, the cheapest way to build a SONET network is to build a SONET network. Or something like that, I think we can do better but=8A Apologize for a mis quote. Peter can address with me. Given we build INTERNET infrastructure for <100% capacity at peak, for single link, single site, single fiber bundle failures. And then we pad it for growth. With Overcapacity of 50%ish. You have to love 50% CAGR per year on traffic, you are never wrong. Some of this optimization stuff is inertsesting (sp?), that is not how we build networks on this side. Everything for us is IPV6, not interested in forcing us to have to tunnel it all in MPLS. =20 I=B9m not even happy with Ethernet. SONET gone, Ethernet?, Big Fat V6 Pipe go. John Leddy On 5/30/14, 4:08 PM, "Hannes Gredler" wrote: >robert, > >On May 30, 2014, at 9:50 PM, Robert Raszuk wrote: > >> Hi Yakov, >>=20 >> I read Eric's email and included its main point a bit differently. >>=20 >> It is known for a fact that in large network (say 1000 routers) it is >> sufficient to force traffic only via few key core boxes (perhaps 10 or >> so) in order to perform good traffic engineering. > >i do not share that view: > >we have heard of many customer requirements requiring to to disjoint >routing >of SIGTRAN traffic down to the PE level. >IOW pretty much every router needs to have support for the new >*expensive* data plane. > >> With SR it is possible while in classical RSVP-TE it is not - simply >> due hop by hop signalling nature of the latter. > >with LSP hierarchy we can solve pretty much any scaling problem, right ? > >> His reference to PE was IMHO just an example without intention to >> provide exhaustive list. >>=20 >> For local protection with basic IPv6 network I would rather recommend >> use of LFA solutions which again do not require anything to do with >> SRH processing - so his SRH forwarding only case for vast majority of >> routers in a given domain remains sound and valid. > >the trouble with LFA technology and 100% backup coverage is >a bit like star-wars =8A lots of episodes ;-) > >Episode 1: - LFA > is not deployable due to the algorithm not > consider what is an operational feasible > path (think of backup of a oc-768 with a oc-3). > > so we need: > >Episode 2: - LFA + policy (manageability draft) > > trouble is now we have eliminated many paths > due to policy reasons: so we need something > to increase path-diversity by reusing > existing tunnels - which gets us to > >Episode 3: - R-LFA > it is still possible to construct pathologic > topologies which do not provide 100% coverage. > >Episode 4: - R-LFA +DF > concerns about micro-loops and desire to place SPT > backup traffic on the post-convergence-path leads us > to > >Episode 5: - TI-LFA > > >now my question is: would you bet the farm on that there won't >be another episode (i.e. things we haven't considered so far). >i won't, given that track record of misguided hopes and believes. > >/hannes > >> On Fri, May 30, 2014 at 9:37 PM, Yakov Rekhter >>wrote: >>> Eric, >>>=20 >>>> -----Original Message----- >>>> From: Eric Vyncke (evyncke) [mailto:evyncke@cisco.com] >>>> Sent: Tuesday, May 27, 2014 2:37 PM >>>> To: Hannes Gredler; Stefano Previdi (sprevidi) >>>> Cc: Yakov Rekhter; ; Alvaro Retana (aretana) >>>> Subject: Re: [spring] WG Adoption Call for >>>>draft-martin-spring-segment- >>>> routing-ipv6-use-cases >>>>=20 >>>> Late reply to Hannes point: >>>>=20 >>>> On 28/03/14 22:23, "Hannes Gredler" wrote: >>>>>=20 >>>>> the real question is what percentage of public Internet routers >>>>>=20 >>>>> 1) does have MPLS hardware forwarding support >>>>> 2) does have IPv6-SR hardware forwarding support. >>>>>=20 >>>>> And >>>>=20 >>>> Regarding the IPv6-SR compatibility, as SRH is basically 'loose source >>>> routing', it only requires: >>>> - SRH processing by all SR-enabled router whose segment id is in the >>>> SRH, typically some PE routers. Those will need to be modified indeed >>>> but those will be minority >>>> - SRH forwarding (i.e. Not parsing or acting upon the SRH) for all >>>> remaining routers. Those will be the majority >>>=20 >>> If indeed, as you said above, only "minory" of the routers (e.g., only >>>PEs) >>> would be able to process IPv6 SRH, then SR would *not* be able to >>>support >>> such use cases as various flavors of local protection, and traffic >>>engineering >>> (except for EPE). Conversely, support for various flavors of local >>> protection and/or traffic engineering (other than EPE) would require >>> all routers to support IPv6 SRH. >>>=20 >>> Yakov. >>>=20 >>>>=20 >>>> The latter is currently OK, I wrote a small script >>>> https://www.vyncke.org/sr.php which basically sends a dummy SRH to >>>>your >>>> browser (requirement is that your browser/clients supports IPv6) and >>>> after a dozen of tests, all were successful. While this is not a >>>> mathematical proof, this is good enough from my engineer's point of >>>> view >>>>=20 >>>> Hope this helps >>>>=20 >>>> -=E9ric >>>=20 >>> _______________________________________________ >>> spring mailing list >>> spring@ietf.org >>> https://www.ietf.org/mailman/listinfo/spring > >