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charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Cc: "ospf@ietf.org" , "spring@ietf.org" Subject: Re: [spring] [OSPF] fwd: New Version Notification for draft-xu-ospf-global-label-sid-adv-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: Mon, 27 Jan 2014 08:41:26 -0000 Xiaohu, 1. draft-psenak-ospf-segment-routing-extensions has already defined the mapping server functionality - please read the section 4.2 and 6.1 2. TLVs that you defined in section 3 and 4 are very close to those defined in draft-psenak-ospf-segment-routing-extensions and have the exact same functionality as the ones defined in draft-psenak-ospf-segment-routing-extensions 3. The only new sub-TLV you defined is Label Request Sub-TLV. First, given that we already have OSPF SR draft, you should have defined this as a sub-TLV of the OSPF Extended Prefix TLV that is defined in draft-psenak-ospf-segment-routing-extensions. Second, you proposed to use Opaque LSA that is flooded either area or domain wide as a request mechanism between the router and mapping server. This means that all routers in an area/domain would have to store and maintain such 'request' LSAs, even though they would never use them locally. I seriously question if flooding of the LSA is the right mechanism to achieve what you want. regards, Peter On 1/27/14 04:34 , Xuxiaohu wrote: > Hi all, > > Any comments are welcome. > > Best regards, > Xiaohu > >> -----邮件原件----- >> 发件人: internet-drafts@ietf.org [mailto:internet-drafts@ietf.org] >> 发送时间: 2014年1月21日 13:53 >> 收件人: Mach Chen; Mach Chen; Xuxiaohu; Xuxiaohu >> 主题: New Version Notification for draft-xu-ospf-global-label-sid-adv-00.txt >> >> >> A new version of I-D, draft-xu-ospf-global-label-sid-adv-00.txt >> has been successfully submitted by Xiaohu Xu and posted to the IETF repository. >> >> Name: draft-xu-ospf-global-label-sid-adv >> Revision: 00 >> Title: Advertising Global Labels or SIDs Using OSPF >> Document date: 2014-01-21 >> Group: Individual Submission >> Pages: 7 >> URL: >> http://www.ietf.org/internet-drafts/draft-xu-ospf-global-label-sid-adv-00.txt >> Status: >> https://datatracker.ietf.org/doc/draft-xu-ospf-global-label-sid-adv/ >> Htmlized: >> http://tools.ietf.org/html/draft-xu-ospf-global-label-sid-adv-00 >> >> >> Abstract: >> Segment Routing (SR) is a new MPLS paradigm in which each SR-capable >> router is required to advertise global MPLS labels or Segment IDs >> (SID) for its attached prefixes by using link-state IGPs, e.g., OSPF. >> One major challenge associated with such global MPLS label or SID >> advertisement mechanism is how to avoid a given global MPLS label or >> SID from being allocated by different routers to different prefixes. >> Although such global label or SID allocation collision problem can be >> addressed through manual allocation , it is error-prone and >> nonautomatic therefore may not be suitable in large-scale SR network >> environments. This document proposes an alternative approach for >> allocating and advertising global MPLS labels or SIDs via OSPF so as >> to eliminate the potential risk of label allocation collision. >> >> >> >> >> 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. >> >> The IETF Secretariat > > _______________________________________________ > OSPF mailing list > OSPF@ietf.org > https://www.ietf.org/mailman/listinfo/ospf > From xuxiaohu@huawei.com Mon Jan 27 00:42:23 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 464751A017A; Mon, 27 Jan 2014 00:42:23 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.947 X-Spam-Level: X-Spam-Status: No, score=-1.947 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=-0.535, 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 BtbqoBs7vHB1; Mon, 27 Jan 2014 00:42:21 -0800 (PST) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) by ietfa.amsl.com (Postfix) with ESMTP id 4B7EB1A0148; Mon, 27 Jan 2014 00:42:21 -0800 (PST) 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 BAL50177; Mon, 27 Jan 2014 08:42:18 +0000 (GMT) Received: from LHREML404-HUB.china.huawei.com (10.201.5.218) by lhreml204-edg.china.huawei.com (172.18.7.223) with Microsoft SMTP Server (TLS) id 14.3.158.1; Mon, 27 Jan 2014 08:41:44 +0000 Received: from nkgeml407-hub.china.huawei.com (10.98.56.38) by lhreml404-hub.china.huawei.com (10.201.5.218) with Microsoft SMTP Server (TLS) id 14.3.158.1; Mon, 27 Jan 2014 08:41:58 +0000 Received: from NKGEML512-MBS.china.huawei.com ([169.254.8.45]) by nkgeml407-hub.china.huawei.com ([10.98.56.38]) with mapi id 14.03.0158.001; Mon, 27 Jan 2014 16:41:53 +0800 From: Xuxiaohu To: "Stefano Previdi (sprevidi)" , Hannes Gredler , "Chris Hopps (chopps)" , "isis-wg@ietf.org" Thread-Topic: draft-previdi-isis-segment-routing-04 Thread-Index: AQHPEQkfuQPDDui7wk6P5YEHxXPwkZqYBqOw Date: Mon, 27 Jan 2014 08:41:53 +0000 Message-ID: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE082483F4@NKGEML512-MBS.china.huawei.com> References: <3ED66977-E3E8-4A0E-8A69-8984F9D79CF7@cisco.com> In-Reply-To: <3ED66977-E3E8-4A0E-8A69-8984F9D79CF7@cisco.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="gb2312" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-CFilter-Loop: Reflected Cc: "spring@ietf.org" Subject: Re: [spring] draft-previdi-isis-segment-routing-04 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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X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18NCj4gc3ByaW5n IG1haWxpbmcgbGlzdA0KPiBzcHJpbmdAaWV0Zi5vcmcNCj4gaHR0cHM6Ly93d3cuaWV0Zi5vcmcv bWFpbG1hbi9saXN0aW5mby9zcHJpbmcNCg0K From sprevidi@cisco.com Mon Jan 27 01:47:44 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 921701A0167; Mon, 27 Jan 2014 01:47:44 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -7.247 X-Spam-Level: X-Spam-Status: No, score=-7.247 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, CN_BODY_35=0.339, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, MIME_CHARSET_FARAWAY=2.45, RP_MATCHES_RCVD=-0.535, 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 MDXBAsnP-fDP; Mon, 27 Jan 2014 01:47:43 -0800 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X-Spam-Score: -15.036 X-Spam-Level: X-Spam-Status: No, score=-15.036 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=-0.535, 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 nBBw3ekVcJnU; Mon, 27 Jan 2014 01:53:49 -0800 (PST) Received: from rcdn-iport-6.cisco.com (rcdn-iport-6.cisco.com [173.37.86.77]) by ietfa.amsl.com (Postfix) with ESMTP id 39E841A01E5; Mon, 27 Jan 2014 01:53:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=8182; q=dns/txt; s=iport; t=1390816427; x=1392026027; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-id:content-transfer-encoding: mime-version; bh=T4yERZLOXnC9JxKZEK0xW1/QoxhaR/Ph8/DQjpRvSf0=; b=Hqm8wYxZtDGqTISQaqjHlUJzS/SQP9OuLdLmKxuBcpPJgxJkgik1Hcwz 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Version Notification for draft-xu-ospf-global-label-sid-adv-00.txt Thread-Index: AQHPG0WrDw0WHd9ejUOt7kGi16DSIQ== Date: Mon, 27 Jan 2014 09:53:46 +0000 Message-ID: <078CA756-FEC4-4D76-B761-EF6534F75829@cisco.com> References: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248329@NKGEML512-MBS.china.huawei.com> <52E61BAF.2060208@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248431@NKGEML512-MBS.china.huawei.com> In-Reply-To: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248431@NKGEML512-MBS.china.huawei.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.61.175.153] Content-Type: text/plain; charset="utf-8" Content-ID: <7C6DC95E089B3446A34F97AB4DABC4F5@emea.cisco.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Cc: "ospf@ietf.org" , "spring@ietf.org" , "Peter Psenak \(ppsenak\)" Subject: Re: [spring] [OSPF] New Version Notification for draft-xu-ospf-global-label-sid-adv-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: Mon, 27 Jan 2014 09:53:51 -0000 T24gSmFuIDI3LCAyMDE0LCBhdCAxMDo0OSBBTSwgWHV4aWFvaHUgd3JvdGU6DQo+IEhpIFBldGVy LA0KPiANCj4+IC0tLS0t6YKu5Lu25Y6f5Lu2LS0tLS0NCj4+IOWPkeS7tuS6ujogUGV0ZXIgUHNl bmFrIFttYWlsdG86cHBzZW5ha0BjaXNjby5jb21dDQo+PiDlj5HpgIHml7bpl7Q6IDIwMTTlubQx 5pyIMjfml6UgMTY6NDENCj4+IOaUtuS7tuS6ujogWHV4aWFvaHUNCj4+IOaKhOmAgTogc3ByaW5n QGlldGYub3JnOyBvc3BmQGlldGYub3JnDQo+PiDkuLvpopg6IFJlOiBbT1NQRl0gZndkOiBOZXcg VmVyc2lvbiBOb3RpZmljYXRpb24gZm9yDQo+PiBkcmFmdC14dS1vc3BmLWdsb2JhbC1sYWJlbC1z aWQtYWR2LTAwLnR4dA0KPj4gDQo+PiBYaWFvaHUsDQo+PiANCj4+IA0KPj4gMS4gZHJhZnQtcHNl bmFrLW9zcGYtc2VnbWVudC1yb3V0aW5nLWV4dGVuc2lvbnMgaGFzIGFscmVhZHkgZGVmaW5lZCB0 aGUNCj4+IG1hcHBpbmcgc2VydmVyIGZ1bmN0aW9uYWxpdHkgLSBwbGVhc2UgcmVhZCB0aGUgc2Vj dGlvbiA0LjIgYW5kIDYuMQ0KPiANCj4gQWNjb3JkaW5nIHRvIHRoZSBkZXNjcmlwdGlvbiBhYm91 dCBtYXBwaW5nIHNlcnZlcnMgKHNlZSBiZWxvdykgd2hpY2ggaXMgaW4gLTAxIHZlcnNpb24gb2Yg 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draft-xu-ospf-global-label-sid-adv-00.txt Thread-Index: AQHPG0WxBnxIW+IxfUCKITReQbKxD5qYVcyg Date: Mon, 27 Jan 2014 10:03:16 +0000 Message-ID: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248453@NKGEML512-MBS.china.huawei.com> References: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248329@NKGEML512-MBS.china.huawei.com> <52E61BAF.2060208@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248431@NKGEML512-MBS.china.huawei.com> <078CA756-FEC4-4D76-B761-EF6534F75829@cisco.com> In-Reply-To: <078CA756-FEC4-4D76-B761-EF6534F75829@cisco.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 Cc: "ospf@ietf.org" , "spring@ietf.org" , "Peter Psenak \(ppsenak\)" Subject: [spring] =?utf-8?b?562U5aSNOiBbT1NQRl0gTmV3IFZlcnNpb24gTm90aWZp?= =?utf-8?q?cation_for_draft-xu-ospf-global-label-sid-adv-00=2Etxt?= X-BeenThere: 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Jan 27 02:07:00 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 570A41A01E1; Mon, 27 Jan 2014 02:07:00 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.947 X-Spam-Level: X-Spam-Status: No, score=-1.947 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=-0.535, 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 qgpN5mFz9weL; Mon, 27 Jan 2014 02:06:58 -0800 (PST) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) by ietfa.amsl.com (Postfix) with ESMTP id 1D2501A01D2; Mon, 27 Jan 2014 02:06:57 -0800 (PST) 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 BAM04293; Mon, 27 Jan 2014 10:06:55 +0000 (GMT) Received: from LHREML403-HUB.china.huawei.com (10.201.5.217) by lhreml204-edg.china.huawei.com (172.18.7.223) with Microsoft SMTP Server (TLS) id 14.3.158.1; Mon, 27 Jan 2014 10:06:40 +0000 Received: from NKGEML401-HUB.china.huawei.com (10.98.56.32) by lhreml403-hub.china.huawei.com (10.201.5.217) with Microsoft SMTP Server (TLS) id 14.3.158.1; Mon, 27 Jan 2014 10:06:54 +0000 Received: from NKGEML512-MBS.china.huawei.com ([169.254.8.45]) by nkgeml401-hub.china.huawei.com ([10.98.56.32]) with mapi id 14.03.0158.001; Mon, 27 Jan 2014 18:06:47 +0800 From: Xuxiaohu To: "Stefano Previdi (sprevidi)" Thread-Topic: [spring] draft-previdi-isis-segment-routing-04 Thread-Index: AQHPEQkfuQPDDui7wk6P5YEHxXPwkZqYBqOwgADFfoD//6AdsA== Date: Mon, 27 Jan 2014 10:06:47 +0000 Message-ID: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248461@NKGEML512-MBS.china.huawei.com> References: <3ED66977-E3E8-4A0E-8A69-8984F9D79CF7@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE082483F4@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="gb2312" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-CFilter-Loop: Reflected Cc: Hannes Gredler , "spring@ietf.org" , "isis-wg@ietf.org" , "Chris Hopps \(chopps\)" Subject: Re: [spring] draft-previdi-isis-segment-routing-04 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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with ESMTP id 4A5DE1A01E1; Mon, 27 Jan 2014 02:08:29 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -10.036 X-Spam-Level: X-Spam-Status: No, score=-10.036 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RP_MATCHES_RCVD=-0.535, 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 9WvbfaPcIM5h; Mon, 27 Jan 2014 02:08:27 -0800 (PST) Received: from aer-iport-2.cisco.com (aer-iport-2.cisco.com [173.38.203.52]) by ietfa.amsl.com (Postfix) with ESMTP id 88C2E1A01E4; Mon, 27 Jan 2014 02:08:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=6162; q=dns/txt; s=iport; t=1390817304; x=1392026904; h=message-id:date:from:mime-version:to:cc:subject: references:in-reply-to:content-transfer-encoding; bh=sAAYh/28Awaf1xdiY/KQtI0LyIpDL4EjL2MI5qOWI14=; b=ib+AzXMffXo9ZG+srz2X31jpaxYxLN+7YaIb1AoMo3TeFtyQeY/DTehF T5USMCsY50FVDu66A1IiyjRgCdSxiDn1epqryaC8hmn0D19JGF4b3S4fZ mgM9Q4eenJJ7da4BUPe4sbEozhmBykvjRlJAOHqKMhYgTHha4UOHEitTL k=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AjEFAMku5lKQ/khR/2dsb2JhbABZgww4g1O5VoEKFnSCJQEBAQMBAQEBIA8BBS8HCQEBEAkCGAICBRYIAwICCQMCAQIBFR8RBg0BBQIBAQWHdAgNj16bcZxXF4EpjWQHgm+BSQEDmCeBMoUVi1eBb4E/Ow X-IronPort-AV: E=Sophos;i="4.95,728,1384300800"; d="scan'208";a="3566980" Received: from ams-core-1.cisco.com ([144.254.72.81]) by aer-iport-2.cisco.com with ESMTP; 27 Jan 2014 10:08:22 +0000 Received: from [10.148.128.68] ([10.148.128.68]) by ams-core-1.cisco.com (8.14.5/8.14.5) with ESMTP id s0RA8MGV022608; Mon, 27 Jan 2014 10:08:22 GMT Message-ID: <52E63015.5090404@cisco.com> Date: Mon, 27 Jan 2014 11:08:21 +0100 From: Peter Psenak User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:17.0) Gecko/20130509 Thunderbird/17.0.6 MIME-Version: 1.0 To: Xuxiaohu References: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248329@NKGEML512-MBS.china.huawei.com> <52E61BAF.2060208@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248431@NKGEML512-MBS.china.huawei.com> In-Reply-To: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248431@NKGEML512-MBS.china.huawei.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Cc: "ospf@ietf.org" , "spring@ietf.org" Subject: Re: [spring] [OSPF] fwd: New Version Notification for draft-xu-ospf-global-label-sid-adv-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: Mon, 27 Jan 2014 10:08:29 -0000 Xiaohu, On 1/27/14 10:49 , Xuxiaohu wrote: > Hi Peter, > >> -----邮件原件----- >> 发件人: Peter Psenak [mailto:ppsenak@cisco.com] >> 发送时间: 2014年1月27日 16:41 >> 收件人: Xuxiaohu >> 抄送: spring@ietf.org; ospf@ietf.org >> 主题: Re: [OSPF] fwd: New Version Notification for >> draft-xu-ospf-global-label-sid-adv-00.txt >> >> Xiaohu, >> >> >> 1. draft-psenak-ospf-segment-routing-extensions has already defined the >> mapping server functionality - please read the section 4.2 and 6.1 > > According to the description about mapping servers (see below) which is in -01 version of the use case draft but is removed in -02 version of that draft, it seems that the mapping server is deemed to advertise the mappings on behalf of non-SR-capable routers. In contrast, my draft proposes to allow the mapping server to allocate and advertise mappings on behalf of SR-capable routers. Those two distinct design goals cause different implications on the implementation and usage. that is not true. MS as we support it with existing drafts can be used to advertise SID/label for SR capable routers. > > "The mappings advertised by an SR mapping server result from local > policy information configured by the operator. IF PE3 had been SR > capable, the operator would have configured PE3 with node segment > 103. Instead, as PE3 is not SR capable, the operator configures that > policy at the SRMS and it is the latter which advertises the mapping."---quoted from -01 version of the use case draft. > >> 2. TLVs that you defined in section 3 and 4 are very close to those defined in >> draft-psenak-ospf-segment-routing-extensions and have the exact same >> functionality as the ones defined in >> draft-psenak-ospf-segment-routing-extensions > > If I understand your draft correctly, the prefix SID sub-TLV defined in your draft is intended to advertise index, rather than SID or global label. In contrast, the Label Binding Sub-TLV and SID Binding Sub-TLV defined in my draft are intended to advertise global labels and SIDs respectively. Besides, the Label Binding Sub-TLV and SID Binding sub-TLV are just intended for label or SID distribution without any correlation with the algorithm and MT-ID, which is different from the prefix SID sub-TLV, IMHO. you can advertise an absolute value of the label/SID with existing TLVs - simply advertise the label/sid range starting from 0. MT-ID and algorithm fields of 0 means default topology and SPT tree, which is what you want anyway. > >> 3. The only new sub-TLV you defined is Label Request Sub-TLV. >> >> First, given that we already have OSPF SR draft, you should have defined this as >> a sub-TLV of the OSPF Extended Prefix TLV that is defined in >> draft-psenak-ospf-segment-routing-extensions. > >> Second, you proposed to use Opaque LSA that is flooded either area or domain >> wide as a request mechanism between the router and mapping server. This >> means that all routers in an area/domain would have to store and maintain such >> 'request' LSAs, even though they would never use them locally. I seriously >> question if flooding of the LSA is the right mechanism to achieve what you want. > > Agree that it may not be attractive in the OSPF case. However, this choice may be attractive in the IS-IS case since the label/SID request information can be carried in the IP reachability advertisement. Anyway, as said in the draft, the advertisement of label/SID request is just one option. I do not see how ISIS is different - LSP is still flooded with area scope. regards, Peter > > Best regards, > Xiaohu > >> regards, >> Peter >> >> >> >> On 1/27/14 04:34 , Xuxiaohu wrote: >>> Hi all, >>> >>> Any comments are welcome. >>> >>> Best regards, >>> Xiaohu >>> >>>> -----邮件原件----- >>>> 发件人: internet-drafts@ietf.org [mailto:internet-drafts@ietf.org] >>>> 发送时间: 2014年1月21日 13:53 >>>> 收件人: Mach Chen; Mach Chen; Xuxiaohu; Xuxiaohu >>>> 主题: New Version Notification for >>>> draft-xu-ospf-global-label-sid-adv-00.txt >>>> >>>> >>>> A new version of I-D, draft-xu-ospf-global-label-sid-adv-00.txt >>>> has been successfully submitted by Xiaohu Xu and posted to the IETF >> repository. >>>> >>>> Name: draft-xu-ospf-global-label-sid-adv >>>> Revision: 00 >>>> Title: Advertising Global Labels or SIDs Using OSPF >>>> Document date: 2014-01-21 >>>> Group: Individual Submission >>>> Pages: 7 >>>> URL: >>>> http://www.ietf.org/internet-drafts/draft-xu-ospf-global-label-sid-ad >>>> v-00.txt >>>> Status: >>>> https://datatracker.ietf.org/doc/draft-xu-ospf-global-label-sid-adv/ >>>> Htmlized: >>>> http://tools.ietf.org/html/draft-xu-ospf-global-label-sid-adv-00 >>>> >>>> >>>> Abstract: >>>> Segment Routing (SR) is a new MPLS paradigm in which each >> SR-capable >>>> router is required to advertise global MPLS labels or Segment IDs >>>> (SID) for its attached prefixes by using link-state IGPs, e.g., OSPF. >>>> One major challenge associated with such global MPLS label or SID >>>> advertisement mechanism is how to avoid a given global MPLS label or >>>> SID from being allocated by different routers to different prefixes. >>>> Although such global label or SID allocation collision problem can be >>>> addressed through manual allocation , it is error-prone and >>>> nonautomatic therefore may not be suitable in large-scale SR network >>>> environments. This document proposes an alternative approach for >>>> allocating and advertising global MPLS labels or SIDs via OSPF so as >>>> to eliminate the potential risk of label allocation collision. >>>> >>>> >>>> >>>> >>>> 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. >>>> >>>> The IETF Secretariat >>> >>> _______________________________________________ >>> OSPF mailing list >>> OSPF@ietf.org >>> https://www.ietf.org/mailman/listinfo/ospf >>> > From sprevidi@cisco.com Mon Jan 27 03:29:59 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 2BE1D1A01E8; Mon, 27 Jan 2014 03:29:59 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -10.036 X-Spam-Level: X-Spam-Status: No, score=-10.036 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RP_MATCHES_RCVD=-0.535, 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 hKVDRtP__Qhl; Mon, 27 Jan 2014 03:29:56 -0800 (PST) Received: from alln-iport-6.cisco.com (alln-iport-6.cisco.com [173.37.142.93]) by ietfa.amsl.com (Postfix) with ESMTP id 816101A01E4; Mon, 27 Jan 2014 03:29:56 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=10206; q=dns/txt; s=iport; t=1390822194; x=1392031794; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-id:content-transfer-encoding: mime-version; bh=muwTpzqAX8rCuhoGPPuy3BhAtV4o24IhyldayqTZG8s=; b=ECxnN/xKIUQx6EKot2lKuO4Y1cteoo785rc/0ipYZ4YIx7+8QJj0qjTF 7KpNWP4FIatGfHoLeiMh//iHeov6ugEZcp+HEBUa2VqNEbjpH7WpZ+us6 y4EsyFB94mgw5KICbCeD65BFf//dXWra6wr+4r0+tJ3jBEZOT1QYcolwu A=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AksFANBC5lKtJV2b/2dsb2JhbABZgww4VoJ9uVcYdBZ0giUBAQEDAQEBASARMwcJAhACAQYCGAICIwMCAgIlCxQBEAIEDgUJh3QIDY9fm3GcWxeBKY1kB4JvNYEUAQOYJ4EykGyBb4E+gio X-IronPort-AV: E=Sophos;i="4.95,728,1384300800"; d="scan'208";a="15757220" Received: from rcdn-core-4.cisco.com ([173.37.93.155]) by alln-iport-6.cisco.com with ESMTP; 27 Jan 2014 11:29:53 +0000 Received: from xhc-rcd-x05.cisco.com (xhc-rcd-x05.cisco.com [173.37.183.79]) by rcdn-core-4.cisco.com (8.14.5/8.14.5) with ESMTP id s0RBTrMQ010946 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=FAIL); Mon, 27 Jan 2014 11:29:53 GMT Received: from xmb-rcd-x01.cisco.com ([169.254.1.207]) by xhc-rcd-x05.cisco.com ([173.37.183.79]) with mapi id 14.03.0123.003; Mon, 27 Jan 2014 05:29:52 -0600 From: "Stefano Previdi (sprevidi)" To: Xuxiaohu Thread-Topic: [OSPF] New Version Notification for draft-xu-ospf-global-label-sid-adv-00.txt Thread-Index: AQHPG0WwY5dRjGb+CUm4QQSmxCLpR5qYvAgAgAAYLoA= Date: Mon, 27 Jan 2014 11:29:51 +0000 Message-ID: <6E624252-180A-422E-91D7-ADC11AFF3282@cisco.com> References: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248329@NKGEML512-MBS.china.huawei.com> <52E61BAF.2060208@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248431@NKGEML512-MBS.china.huawei.com> <078CA756-FEC4-4D76-B761-EF6534F75829@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248453@NKGEML512-MBS.china.huawei.com> In-Reply-To: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248453@NKGEML512-MBS.china.huawei.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.61.175.153] Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 Cc: "ospf@ietf.org" , "spring@ietf.org" , "Peter Psenak \(ppsenak\)" Subject: Re: [spring] [OSPF] New Version Notification for draft-xu-ospf-global-label-sid-adv-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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Pj4+PiANCj4+PiANCj4+PiBfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fXw0KPj4+IE9TUEYgbWFpbGluZyBsaXN0DQo+Pj4gT1NQRkBpZXRmLm9yZw0KPj4+IGh0 dHBzOi8vd3d3LmlldGYub3JnL21haWxtYW4vbGlzdGluZm8vb3NwZg0KPiANCg0K From xuxiaohu@huawei.com Mon Jan 27 19:47:18 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 1A64B1A0180; Mon, 27 Jan 2014 19:47:18 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.736 X-Spam-Level: X-Spam-Status: No, score=-4.736 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RP_MATCHES_RCVD=-0.535, 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 LjNapSAnnt5N; Mon, 27 Jan 2014 19:47:13 -0800 (PST) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com 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DQo+ID4+Pg0KPiA+DQoNCg== From xuxiaohu@huawei.com Mon Jan 27 19:55:34 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 AA8541A028A; Mon, 27 Jan 2014 19:55:34 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.736 X-Spam-Level: X-Spam-Status: No, score=-4.736 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RP_MATCHES_RCVD=-0.535, 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 ZyAUdQ-ACmA6; Mon, 27 Jan 2014 19:55:33 -0800 (PST) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) by ietfa.amsl.com (Postfix) with ESMTP id 6492F1A017F; Mon, 27 Jan 2014 19:55:32 -0800 (PST) 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 BCZ73375; Tue, 28 Jan 2014 03:55:29 +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; Tue, 28 Jan 2014 03:55:12 +0000 Received: from NKGEML403-HUB.china.huawei.com (10.98.56.34) by lhreml401-hub.china.huawei.com (10.201.5.240) with Microsoft SMTP Server (TLS) id 14.3.158.1; Tue, 28 Jan 2014 03:55:28 +0000 Received: from NKGEML512-MBS.china.huawei.com ([169.254.8.45]) by nkgeml403-hub.china.huawei.com ([10.98.56.34]) with mapi id 14.03.0158.001; Tue, 28 Jan 2014 11:55:23 +0800 From: Xuxiaohu To: "isis-wg@ietf.org list" , "ospf@ietf.org" Thread-Topic: Solicit Comments on draft-xu-isis-mpls-elc-00 and draft-xu-ospf-mpls-elc-00 Thread-Index: Ac8b3MSLiehkrqKoR5y6oot2scoh6g== Date: Tue, 28 Jan 2014 03:55:22 +0000 Message-ID: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248850@NKGEML512-MBS.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="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-CFilter-Loop: Reflected Cc: "mpls@ietf.org" , "spring@ietf.org" Subject: [spring] Solicit Comments on draft-xu-isis-mpls-elc-00 and draft-xu-ospf-mpls-elc-00 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, 28 Jan 2014 03:55:35 -0000 Hi all, The SPRING SR use case draft (http://tools.ietf.org/html/draft-filsfils-rtg= wg-segment-routing-use-cases-02) has explicitly expressed the need for load= -balancing MPLS traffic in the SPRING domain. [RFC6790] has defined a method to load balance MPLS traffic flows using Ent= ropy Labels (EL). According to the specification as defined in [RFC6790], a= n ingress LSR cannot insert ELs for packets going into a given tunnel unles= s an egress LSR has indicated via signaling that it can process ELs on that= tunnel. Therefore [RFC6790] defines the signaling of this capability (a.k= .a Entropy Label Capability - ELC) via existing label distribution protocol= s( i.e., LDP, RSVP and BGP). However, in the SPRING domain, the above signa= ling mechanisms are inadequate since label distribution would be done via l= ink state Interior Gateway Protocols (IGP) (i.e., IS-IS and OSPF) instead o= f the existing label distribution protocols( i.e., LDP, RSVP and BGP). This draft (http://tools.ietf.org/html/draft-xu-mpls-el-capability-signalin= g-igp-00) describing mechanisms to signal the ELC using OSPF and ISIS has b= een presented at SPRING and MPLS WG during the last IETF meeting. According= to SPRING co-chairs' suggestions, this draft has been separated into two d= rafts: one is IS-IS specific (http://tools.ietf.org/html/draft-xu-isis-mpls= -elc-00), the other is OSPF specific (http://tools.ietf.org/html/draft-xu-o= spf-mpls-elc-00). Any comments on these two drafts are welcome. Best regards, Xiaohu From ppsenak@cisco.com Tue Jan 28 00:15:24 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 D2D1B1A022D; Tue, 28 Jan 2014 00:15:24 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -10.036 X-Spam-Level: X-Spam-Status: No, score=-10.036 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RP_MATCHES_RCVD=-0.535, 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 9AoQQgg8K8yh; Tue, 28 Jan 2014 00:15:22 -0800 (PST) Received: from aer-iport-2.cisco.com (aer-iport-2.cisco.com [173.38.203.52]) by ietfa.amsl.com (Postfix) with ESMTP id 1CA041A025B; Tue, 28 Jan 2014 00:15:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=7625; q=dns/txt; s=iport; t=1390896919; x=1392106519; h=message-id:date:from:mime-version:to:cc:subject: references:in-reply-to:content-transfer-encoding; bh=0WeKUGhW2iTr4/H1UM+9iJi49+p0jtUoirapefGEtMs=; b=K/jhcqeYbfhpcZCt2WdmhqM5m5GO8if3kZ6gOAYsRTbIVhWzntCJIZfS x+VECsh8M8EmPBsDfK8VANw1p0OEDOuhiwOPZUfgFPUjvriSfmH9HfY98 Gq0ck1Bf/PR6EWRFcXxvxvLV9puWQDAdDoGZWiyupF5NQeiNXTqyNX2sS 8=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AhAFAJpm51KQ/khL/2dsb2JhbABagww4g1O5WIETFnSCJQEBAQMBAQEBIA8BBS8HCQEBEAkCGAICBRYIAwICCQMCAQIBFR8RBg0BBQIBAQWHdAgNjXWbcZ9zF4EpjVYHgm+BSQEDmCeBMoUWi1eBb4E/Ow X-IronPort-AV: E=Sophos;i="4.95,735,1384300800"; d="scan'208";a="3615281" Received: from ams-core-2.cisco.com ([144.254.72.75]) by aer-iport-2.cisco.com with ESMTP; 28 Jan 2014 08:15:16 +0000 Received: from [10.55.51.201] (ams-ppsenak-8718.cisco.com [10.55.51.201]) by ams-core-2.cisco.com (8.14.5/8.14.5) with ESMTP id s0S8FGn3009834; Tue, 28 Jan 2014 08:15:16 GMT Message-ID: <52E76714.8090305@cisco.com> Date: Tue, 28 Jan 2014 09:15:16 +0100 From: Peter Psenak User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:17.0) Gecko/20130509 Thunderbird/17.0.6 MIME-Version: 1.0 To: Xuxiaohu References: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248329@NKGEML512-MBS.china.huawei.com> <52E61BAF.2060208@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248431@NKGEML512-MBS.china.huawei.com> <52E63015.5090404@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0824883E@NKGEML512-MBS.china.huawei.com> In-Reply-To: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0824883E@NKGEML512-MBS.china.huawei.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Cc: "ospf@ietf.org" , "spring@ietf.org" , "isis-wg@ietf.org" Subject: Re: [spring] [OSPF] fwd: New Version Notification for draft-xu-ospf-global-label-sid-adv-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: Tue, 28 Jan 2014 08:15:25 -0000 Xiaohu, please see inline (##PP): On 1/28/14 04:46 , Xuxiaohu wrote: > Hi Peter, > >> -----邮件原件----- >> 发件人: Peter Psenak [mailto:ppsenak@cisco.com] >> 发送时间: 2014年1月27日 18:08 >> 收件人: Xuxiaohu >> 抄送: spring@ietf.org; ospf@ietf.org >> 主题: Re: [OSPF] fwd: New Version Notification for >> draft-xu-ospf-global-label-sid-adv-00.txt >> >> Xiaohu, >> >> On 1/27/14 10:49 , Xuxiaohu wrote: >>> Hi Peter, >>> >>>> -----邮件原件----- >>>> 发件人: Peter Psenak [mailto:ppsenak@cisco.com] >>>> 发送时间: 2014年1月27日 16:41 >>>> 收件人: Xuxiaohu >>>> 抄送: spring@ietf.org; ospf@ietf.org >>>> 主题: Re: [OSPF] fwd: New Version Notification for >>>> draft-xu-ospf-global-label-sid-adv-00.txt >>>> >>>> Xiaohu, >>>> >>>> >>>> 1. draft-psenak-ospf-segment-routing-extensions has already defined >>>> the mapping server functionality - please read the section 4.2 and >>>> 6.1 >>> >>> According to the description about mapping servers (see below) which is in -01 >> version of the use case draft but is removed in -02 version of that draft, it seems >> that the mapping server is deemed to advertise the mappings on behalf of >> non-SR-capable routers. In contrast, my draft proposes to allow the mapping >> server to allocate and advertise mappings on behalf of SR-capable routers. >> Those two distinct design goals cause different implications on the >> implementation and usage. >> >> that is not true. MS as we support it with existing drafts can be used to advertise >> SID/label for SR capable routers. > > This above argument may be true for the OSPF extension for SR draft since the Prefix-SID are attached to OSPFv2 Extended Prefix Opaque LSA which is not used for building the normal IP routing table. But I doubt whether the above argument is still true for the ISIS extension for SR draft since the Prefix-SID Sub-TLV is attached to the Extended IP Reachability TLV which is exactly used for building the normal IP routing table, according to the existing description of that draft. ##PP in ISIS, you can use SID/Label Binding TLV to advertise SID/label for prefix for which you do not want to advertise IP reachability. regards, Peter > > Best regard, > Xiaohu > >>> "The mappings advertised by an SR mapping server result from local >>> policy information configured by the operator. IF PE3 had been SR >>> capable, the operator would have configured PE3 with node segment >>> 103. Instead, as PE3 is not SR capable, the operator configures that >>> policy at the SRMS and it is the latter which advertises the >> mapping."---quoted from -01 version of the use case draft. >>> >>>> 2. TLVs that you defined in section 3 and 4 are very close to those >>>> defined in draft-psenak-ospf-segment-routing-extensions and have the >>>> exact same functionality as the ones defined in >>>> draft-psenak-ospf-segment-routing-extensions >>> >>> If I understand your draft correctly, the prefix SID sub-TLV defined >>> in your draft is intended to advertise index, rather than SID or >>> global label. In contrast, the Label Binding >> Sub-TLV and SID Binding Sub-TLV defined in my draft are intended to advertise >> global labels and SIDs respectively. Besides, the Label Binding Sub-TLV and SID >> Binding sub-TLV are just intended for label or SID distribution without any >> correlation with the algorithm and MT-ID, which is different from the prefix SID >> sub-TLV, IMHO. >> >> you can advertise an absolute value of the label/SID with existing TLVs >> - simply advertise the label/sid range starting from 0. MT-ID and algorithm fields >> of 0 means default topology and SPT tree, which is what you want anyway. > >>> >>>> 3. The only new sub-TLV you defined is Label Request Sub-TLV. >>>> >>>> First, given that we already have OSPF SR draft, you should have >>>> defined this as a sub-TLV of the OSPF Extended Prefix TLV that is >>>> defined in draft-psenak-ospf-segment-routing-extensions. >>> >>>> Second, you proposed to use Opaque LSA that is flooded either area or >>>> domain wide as a request mechanism between the router and mapping >>>> server. This means that all routers in an area/domain would have to >>>> store and maintain such 'request' LSAs, even though they would never >>>> use them locally. I seriously question if flooding of the LSA is the right >> mechanism to achieve what you want. >>> >>> Agree that it may not be attractive in the OSPF case. However, this choice may >> be attractive in the IS-IS case since the label/SID request information can be >> carried in the IP reachability advertisement. Anyway, as said in the draft, the >> advertisement of label/SID request is just one option. >> >> I do not see how ISIS is different - LSP is still flooded with area scope. >> >> regards, >> Peter >> >>> >>> Best regards, >>> Xiaohu >>> >>>> regards, >>>> Peter >>>> >>>> >>>> >>>> On 1/27/14 04:34 , Xuxiaohu wrote: >>>>> Hi all, >>>>> >>>>> Any comments are welcome. >>>>> >>>>> Best regards, >>>>> Xiaohu >>>>> >>>>>> -----邮件原件----- >>>>>> 发件人: internet-drafts@ietf.org [mailto:internet-drafts@ietf.org] >>>>>> 发送时间: 2014年1月21日 13:53 >>>>>> 收件人: Mach Chen; Mach Chen; Xuxiaohu; Xuxiaohu >>>>>> 主题: New Version Notification for >>>>>> draft-xu-ospf-global-label-sid-adv-00.txt >>>>>> >>>>>> >>>>>> A new version of I-D, draft-xu-ospf-global-label-sid-adv-00.txt >>>>>> has been successfully submitted by Xiaohu Xu and posted to the IETF >>>> repository. >>>>>> >>>>>> Name: draft-xu-ospf-global-label-sid-adv >>>>>> Revision: 00 >>>>>> Title: Advertising Global Labels or SIDs Using OSPF >>>>>> Document date: 2014-01-21 >>>>>> Group: Individual Submission >>>>>> Pages: 7 >>>>>> URL: >>>>>> http://www.ietf.org/internet-drafts/draft-xu-ospf-global-label-sid- >>>>>> ad >>>>>> v-00.txt >>>>>> Status: >>>>>> https://datatracker.ietf.org/doc/draft-xu-ospf-global-label-sid-adv >>>>>> / >>>>>> Htmlized: >>>>>> http://tools.ietf.org/html/draft-xu-ospf-global-label-sid-adv-00 >>>>>> >>>>>> >>>>>> Abstract: >>>>>> Segment Routing (SR) is a new MPLS paradigm in which each >>>> SR-capable >>>>>> router is required to advertise global MPLS labels or Segment IDs >>>>>> (SID) for its attached prefixes by using link-state IGPs, e.g., OSPF. >>>>>> One major challenge associated with such global MPLS label or SID >>>>>> advertisement mechanism is how to avoid a given global MPLS label >> or >>>>>> SID from being allocated by different routers to different prefixes. >>>>>> Although such global label or SID allocation collision problem can be >>>>>> addressed through manual allocation , it is error-prone and >>>>>> nonautomatic therefore may not be suitable in large-scale SR >> network >>>>>> environments. This document proposes an alternative approach >> for >>>>>> allocating and advertising global MPLS labels or SIDs via OSPF so as >>>>>> to eliminate the potential risk of label allocation collision. >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> 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. >>>>>> >>>>>> The IETF Secretariat >>>>> >>>>> _______________________________________________ >>>>> OSPF mailing list >>>>> OSPF@ietf.org >>>>> https://www.ietf.org/mailman/listinfo/ospf >>>>> >>> > From xuxiaohu@huawei.com Tue Jan 28 00:54:23 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 92F0B1A02D0; Tue, 28 Jan 2014 00:54:23 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.736 X-Spam-Level: X-Spam-Status: No, score=-4.736 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RP_MATCHES_RCVD=-0.535, 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 wADeVRC45k7o; Tue, 28 Jan 2014 00:54:21 -0800 (PST) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) by ietfa.amsl.com (Postfix) with ESMTP id D0FAD1A003E; Tue, 28 Jan 2014 00:54:20 -0800 (PST) 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 BCZ96592; Tue, 28 Jan 2014 08:54:18 +0000 (GMT) Received: from LHREML406-HUB.china.huawei.com (10.201.5.243) by lhreml203-edg.huawei.com (172.18.7.221) with Microsoft SMTP Server (TLS) id 14.3.158.1; Tue, 28 Jan 2014 08:53:16 +0000 Received: from NKGEML401-HUB.china.huawei.com (10.98.56.32) by lhreml406-hub.china.huawei.com (10.201.5.243) with Microsoft SMTP Server (TLS) id 14.3.158.1; Tue, 28 Jan 2014 08:53:46 +0000 Received: from NKGEML512-MBS.china.huawei.com ([169.254.8.45]) by nkgeml401-hub.china.huawei.com ([10.98.56.32]) with mapi id 14.03.0158.001; Tue, 28 Jan 2014 16:53:41 +0800 From: Xuxiaohu To: Peter Psenak Thread-Topic: [OSPF] fwd: New Version Notification for draft-xu-ospf-global-label-sid-adv-00.txt Thread-Index: AQHPFm0RHaJp205InUCDICUZBq6WQ5qX9Dow///P6ICAAIxY4P//i/mAgAGbsiD//9cLAAARMV0g Date: Tue, 28 Jan 2014 08:53:40 +0000 Message-ID: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0824898B@NKGEML512-MBS.china.huawei.com> References: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248329@NKGEML512-MBS.china.huawei.com> <52E61BAF.2060208@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248431@NKGEML512-MBS.china.huawei.com> <52E63015.5090404@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0824883E@NKGEML512-MBS.china.huawei.com> <52E76714.8090305@cisco.com> In-Reply-To: <52E76714.8090305@cisco.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 Cc: "ospf@ietf.org" , "spring@ietf.org" , "isis-wg@ietf.org" Subject: Re: [spring] [OSPF] fwd: New Version Notification for draft-xu-ospf-global-label-sid-adv-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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AQHPHAaNSerEf0VY0EaOpaA1MuMnOJqaQB0A Date: Tue, 28 Jan 2014 09:17:44 +0000 Message-ID: <76BC980D-44D7-493D-A78F-F071C32510AD@cisco.com> References: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248329@NKGEML512-MBS.china.huawei.com> <52E61BAF.2060208@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248431@NKGEML512-MBS.china.huawei.com> <52E63015.5090404@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0824883E@NKGEML512-MBS.china.huawei.com> <52E76714.8090305@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0824898B@NKGEML512-MBS.china.huawei.com> In-Reply-To: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0824898B@NKGEML512-MBS.china.huawei.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.61.192.134] Content-Type: text/plain; charset="utf-8" Content-ID: <51B25B476CB09248AC0EF60A90C6535F@emea.cisco.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Cc: "ospf@ietf.org" , "spring@ietf.org" , "isis-wg@ietf.org" , "Peter Psenak \(ppsenak\)" Subject: Re: 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X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -10.036 X-Spam-Level: X-Spam-Status: No, score=-10.036 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RP_MATCHES_RCVD=-0.535, 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 ySChlMU6NQig for ; Tue, 28 Jan 2014 09:05:37 -0800 (PST) Received: from aer-iport-1.cisco.com (aer-iport-1.cisco.com [173.38.203.51]) by ietfa.amsl.com (Postfix) with ESMTP id 4CEA71A02C5 for ; Tue, 28 Jan 2014 09:05:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=558; q=dns/txt; s=iport; t=1390928735; x=1392138335; h=message-id:date:from:reply-to:mime-version:to:cc:subject: content-transfer-encoding; bh=E+UMp2xmUyn04TKCSRY/uXOCiA1WBf9rEtNbLbk8rlM=; b=aQYlhFI5MFeK4MnwwnEvILT0U91hdT0j2ZN6UUypCm0hXtVP1vunD5Qb 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rv:24.0) Gecko/20100101 Thunderbird/24.2.0 MIME-Version: 1.0 To: spring-chairs@tools.ietf.org, spring@ietf.org Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: spring-ads@tools.ietf.org Subject: [spring] Lack of progress in SPRING WG X-BeenThere: spring@ietf.org X-Mailman-Version: 2.1.15 Precedence: list Reply-To: stbryant@cisco.com List-Id: "Stacked Tunnels for Source Routing \(STATUS\)." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 28 Jan 2014 17:05:39 -0000 All, We understood when the SPRING WG was formed that it was addressing a problem of importance to both the network operators and the equipment vendors. We are therefore surprised that there seems to have been no progress on setting out the requirements and architecture. We are worried to see no apparent progress and we want to understand what the problem is. If there is no interest in continuing with this work in the IETF then we can close the working group, but we suspect that there is actually a lot of interest. Stewart & Adrian From xuxiaohu@huawei.com Tue Jan 28 19:32:11 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 6A2291A037C; Tue, 28 Jan 2014 19:32:11 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.736 X-Spam-Level: X-Spam-Status: No, score=-4.736 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RP_MATCHES_RCVD=-0.535, 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 fiHNmmjp-HVP; Tue, 28 Jan 2014 19:32:08 -0800 (PST) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) by ietfa.amsl.com (Postfix) with ESMTP id 066951A0366; Tue, 28 Jan 2014 19:32:06 -0800 (PST) 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 BAN86077; Wed, 29 Jan 2014 03:32:02 +0000 (GMT) Received: from LHREML406-HUB.china.huawei.com (10.201.5.243) by lhreml204-edg.china.huawei.com (172.18.7.223) with Microsoft SMTP Server (TLS) id 14.3.158.1; Wed, 29 Jan 2014 03:31:41 +0000 Received: from nkgeml405-hub.china.huawei.com (10.98.56.36) by lhreml406-hub.china.huawei.com (10.201.5.243) with Microsoft SMTP Server (TLS) id 14.3.158.1; Wed, 29 Jan 2014 03:32:00 +0000 Received: from NKGEML512-MBS.china.huawei.com ([169.254.8.45]) by nkgeml405-hub.china.huawei.com ([10.98.56.36]) with mapi id 14.03.0158.001; Wed, 29 Jan 2014 11:31:53 +0800 From: Xuxiaohu To: "Stefano Previdi (sprevidi)" Thread-Topic: [OSPF] fwd: New Version Notification for draft-xu-ospf-global-label-sid-adv-00.txt Thread-Index: AQHPFm0RHaJp205InUCDICUZBq6WQ5qX9Dow///P6ICAAIxY4P//i/mAgAGbsiD//9cLAAARMV0g//+H6QD//k5Z0A== Date: Wed, 29 Jan 2014 03:31:53 +0000 Message-ID: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0824939C@NKGEML512-MBS.china.huawei.com> References: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248329@NKGEML512-MBS.china.huawei.com> <52E61BAF.2060208@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248431@NKGEML512-MBS.china.huawei.com> <52E63015.5090404@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0824883E@NKGEML512-MBS.china.huawei.com> <52E76714.8090305@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0824898B@NKGEML512-MBS.china.huawei.com> <76BC980D-44D7-493D-A78F-F071C32510AD@cisco.com> In-Reply-To: <76BC980D-44D7-493D-A78F-F071C32510AD@cisco.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 Cc: "ospf@ietf.org" , "spring@ietf.org" , "isis-wg@ietf.org" , "Peter Psenak \(ppsenak\)" Subject: Re: [spring] [OSPF] fwd: New Version Notification for draft-xu-ospf-global-label-sid-adv-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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14.03.0158.001; Wed, 29 Jan 2014 12:01:47 +0800 From: Xuxiaohu To: Peter Psenak Thread-Topic: [OSPF] fwd: New Version Notification for draft-xu-ospf-global-label-sid-adv-00.txt Thread-Index: AQHPFm0RHaJp205InUCDICUZBq6WQ5qX9Dow///P6ICAAIxY4P//i/mAgAM8uGA= Date: Wed, 29 Jan 2014 04:01:47 +0000 Message-ID: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE082493BE@NKGEML512-MBS.china.huawei.com> References: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248329@NKGEML512-MBS.china.huawei.com> <52E61BAF.2060208@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248431@NKGEML512-MBS.china.huawei.com> <52E63015.5090404@cisco.com> In-Reply-To: <52E63015.5090404@cisco.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 Cc: "ospf@ietf.org" , "spring@ietf.org" Subject: Re: [spring] [OSPF] fwd: New Version Notification for 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aW9uIGFuZCBkaWZmIGFyZSBhdmFpbGFibGUgYXQgdG9vbHMuaWV0Zi5vcmcuDQo+ID4+Pj4NCj4g Pj4+PiBUaGUgSUVURiBTZWNyZXRhcmlhdA0KPiA+Pj4NCj4gPj4+IF9fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fDQo+ID4+PiBPU1BGIG1haWxpbmcgbGlzdA0K PiA+Pj4gT1NQRkBpZXRmLm9yZw0KPiA+Pj4gaHR0cHM6Ly93d3cuaWV0Zi5vcmcvbWFpbG1hbi9s aXN0aW5mby9vc3BmDQo+ID4+Pg0KPiA+DQoNCg== From sprevidi@cisco.com Wed Jan 29 00:47:19 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 C99BE1A037D; Wed, 29 Jan 2014 00:47:19 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -10.036 X-Spam-Level: X-Spam-Status: No, score=-10.036 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RP_MATCHES_RCVD=-0.535, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham Received: from mail.ietf.org ([4.31.198.44]) by localhost 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<1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248431@NKGEML512-MBS.china.huawei.com> <52E63015.5090404@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0824883E@NKGEML512-MBS.china.huawei.com> <52E76714.8090305@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0824898B@NKGEML512-MBS.china.huawei.com> <76BC980D-44D7-493D-A78F-F071C32510AD@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0824939C@NKGEML512-MBS.china.huawei.com> In-Reply-To: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0824939C@NKGEML512-MBS.china.huawei.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.147.74.29] Content-Type: text/plain; charset="utf-8" Content-ID: <6FE8D95601676D46874BE67646769661@emea.cisco.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Cc: "ospf@ietf.org" , "spring@ietf.org" , "isis-wg@ietf.org" , "Peter Psenak \(ppsenak\)" Subject: Re: [spring] [OSPF] fwd: New Version Notification for draft-xu-ospf-global-label-sid-adv-00.txt X-BeenThere: spring@ietf.org 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Cg== From ppsenak@cisco.com Wed Jan 29 01:10:42 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 04A6D1A0437; Wed, 29 Jan 2014 01:10:42 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.326 X-Spam-Level: X-Spam-Status: No, score=-2.326 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, RP_MATCHES_RCVD=-0.535, SPF_PASS=-0.001, T_DKIM_INVALID=0.01] 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 6369JYrtEN7h; Wed, 29 Jan 2014 01:10:38 -0800 (PST) Received: from aer-iport-1.cisco.com (aer-iport-1.cisco.com [173.38.203.51]) by ietfa.amsl.com (Postfix) with ESMTP id A034C1A02A6; Wed, 29 Jan 2014 01:10:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=1282; q=dns/txt; s=iport; t=1390986635; x=1392196235; h=message-id:date:from:mime-version:to:cc:subject: references:in-reply-to:content-transfer-encoding; bh=iTgRRyJnAOlXEEnBJft2ZPLCVF8wD1tDQkY/WM81QKM=; b=Ak/P7fSV+CxXukYLvolnCaGF+0AB1N5dfjO3L7qP7gnSapT57Nt3Rbci emmUPGOAljPhsW/dOBpTYnPzPkIJUBVlmwlhas1C66xBFpQ+wHGdVzZsA B7fKtTpdOdmMOOUHKt2vc9/x1JrOtKI4CnbNi+LGeLzavpE8yc/vemWEE M=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Ag0FAHDE6FKQ/khM/2dsb2JhbABZgwyEDLZ5gwaBBRZ0giUBAQEDASMVPwEBEAsSBgICBQwKCwICCQMCAQIBNw4GDQEHAQGHeQipb59SF4EpjVYHCoJlgUkBA5gohkiLV4FvgT87 X-IronPort-AV: E=Sophos;i="4.95,741,1384300800"; d="scan'208";a="4344067" Received: from ams-core-3.cisco.com ([144.254.72.76]) by aer-iport-1.cisco.com with ESMTP; 29 Jan 2014 09:10:34 +0000 Received: from [10.55.51.201] (ams-ppsenak-8718.cisco.com [10.55.51.201]) by ams-core-3.cisco.com (8.14.5/8.14.5) with ESMTP id s0T9AX0I015331; Wed, 29 Jan 2014 09:10:33 GMT Message-ID: <52E8C589.9010408@cisco.com> Date: Wed, 29 Jan 2014 10:10:33 +0100 From: Peter Psenak User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:17.0) Gecko/20130509 Thunderbird/17.0.6 MIME-Version: 1.0 To: Xuxiaohu References: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248329@NKGEML512-MBS.china.huawei.com> <52E61BAF.2060208@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248431@NKGEML512-MBS.china.huawei.com> <52E63015.5090404@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE082493BE@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0824948F@NKGEML512-MBS.china.huawei.com> In-Reply-To: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0824948F@NKGEML512-MBS.china.huawei.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: "ospf@ietf.org" , "spring@ietf.org" Subject: Re: [spring] [OSPF] fwd: New Version Notification for draft-xu-ospf-global-label-sid-adv-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: Wed, 29 Jan 2014 09:10:42 -0000 Xiaohu, On 1/29/14 09:53 , Xuxiaohu wrote: > For example, assume a label block {1000, 1999} is allocated for prefix segments by almost all SR routers and a global label 1005 is allocated to a given prefix segment, for a given seldom SR router which couldn't preserve the above label block and allocates a different label block (e.g., {2000, 2999}) instead, a local label corresponding to that global label (or that prefix segment) could be calculated through offsetting, i.e., the result is 1005+ (2000-1000)=2005. In this way, there is no need for introducing the Index concept anymore and therefore the architecture becomes much easy to understand. More importantly, compared to the index binding advertisement, the label binding advertised by the IGP is exactly the same as that in the label forwarding table for those most SR routers which have allocated the above common label block, which is much beneficial when doing troubleshooting. This approach does not violate the strongest MPLS dogma (i.e., labels MUST be local) while taking i n to account the actual situation, IMHO above would require the "seldom SR router" to know the offset from the SRGB used by other routers. How do you envision that to be learned? regards, Peter > > Best regards, > Xiaohu From xuxiaohu@huawei.com Wed Jan 29 01:16:44 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 2EC6B1A037D; Wed, 29 Jan 2014 01:16:44 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.736 X-Spam-Level: X-Spam-Status: No, score=-4.736 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RP_MATCHES_RCVD=-0.535, 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 0sS7_QS4PFPq; Wed, 29 Jan 2014 01:16:42 -0800 (PST) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) by ietfa.amsl.com (Postfix) with ESMTP id 57A861A0364; Wed, 29 Jan 2014 01:16:42 -0800 (PST) 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 BDA98770; Wed, 29 Jan 2014 09:16:39 +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, 29 Jan 2014 09:16:04 +0000 Received: from NKGEML408-HUB.china.huawei.com (10.98.56.39) by lhreml402-hub.china.huawei.com (10.201.5.241) with Microsoft SMTP Server (TLS) id 14.3.158.1; Wed, 29 Jan 2014 09:16:38 +0000 Received: from NKGEML512-MBS.china.huawei.com ([169.254.8.45]) by nkgeml408-hub.china.huawei.com ([10.98.56.39]) with mapi id 14.03.0158.001; Wed, 29 Jan 2014 17:16:34 +0800 From: Xuxiaohu To: Peter Psenak Thread-Topic: [spring] [OSPF] fwd: New Version Notification for draft-xu-ospf-global-label-sid-adv-00.txt Thread-Index: AQHPFm0RHaJp205InUCDICUZBq6WQ5qX9Dow///P6ICAAIxY4P//i/mAgAM8uGCAADEksP//pqiAABDZ6FA= Date: Wed, 29 Jan 2014 09:16:33 +0000 Message-ID: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE082494C6@NKGEML512-MBS.china.huawei.com> References: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248329@NKGEML512-MBS.china.huawei.com> <52E61BAF.2060208@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248431@NKGEML512-MBS.china.huawei.com> <52E63015.5090404@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE082493BE@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0824948F@NKGEML512-MBS.china.huawei.com> <52E8C589.9010408@cisco.com> In-Reply-To: <52E8C589.9010408@cisco.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 Cc: "ospf@ietf.org" , "spring@ietf.org" Subject: Re: [spring] [OSPF] fwd: New Version Notification for draft-xu-ospf-global-label-sid-adv-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: Wed, 29 Jan 2014 09:16:44 -0000 DQoNCj4gLS0tLS3pgq7ku7bljp/ku7YtLS0tLQ0KPiDlj5Hku7bkuro6IFBldGVyIFBzZW5hayBb bWFpbHRvOnBwc2VuYWtAY2lzY28uY29tXQ0KPiDlj5HpgIHml7bpl7Q6IDIwMTTlubQx5pyIMjnm l6UgMTc6MTENCj4g5pS25Lu25Lq6OiBYdXhpYW9odQ0KPiDmioTpgIE6IG9zcGZAaWV0Zi5vcmc7 IHNwcmluZ0BpZXRmLm9yZw0KPiDkuLvpopg6IFJlOiBbc3ByaW5nXSBbT1NQRl0gZndkOiBOZXcg VmVyc2lvbiBOb3RpZmljYXRpb24gZm9yDQo+IGRyYWZ0LXh1LW9zcGYtZ2xvYmFsLWxhYmVsLXNp ZC1hZHYtMDAudHh0DQo+IA0KPiBYaWFvaHUsDQo+IA0KPiBPbiAxLzI5LzE0IDA5OjUzICwgWHV4 aWFvaHUgd3JvdGU6DQo+ID4gRm9yIGV4YW1wbGUsIGFzc3VtZSBhIGxhYmVsIGJsb2NrIHsxMDAw LCAxOTk5fSBpcyBhbGxvY2F0ZWQgZm9yIHByZWZpeA0KPiBzZWdtZW50cyBieSBhbG1vc3QgYWxs IFNSIHJvdXRlcnMgYW5kIGEgZ2xvYmFsIGxhYmVsIDEwMDUgaXMgYWxsb2NhdGVkIHRvIGEgZ2l2 ZW4NCj4gcHJlZml4IHNlZ21lbnQsIGZvciBhIGdpdmVuIHNlbGRvbSBTUiByb3V0ZXIgd2hpY2gg Y291bGRuJ3QgcHJlc2VydmUgdGhlIGFib3ZlDQo+IGxhYmVsIGJsb2NrIGFuZCBhbGxvY2F0ZXMg YSBkaWZmZXJlbnQgbGFiZWwgYmxvY2sgKGUuZy4sIHsyMDAwLCAyOTk5fSkgaW5zdGVhZCwgYQ0K PiBsb2NhbCBsYWJlbCBjb3JyZXNwb25kaW5nIHRvIHRoYXQgZ2xvYmFsIGxhYmVsIChvciB0aGF0 IHByZWZpeCBzZWdtZW50KSBjb3VsZCBiZQ0KPiBjYWxjdWxhdGVkIHRocm91Z2ggb2Zmc2V0dGlu ZywgaS5lLiwgdGhlIHJlc3VsdCBpcyAxMDA1KyAoMjAwMC0xMDAwKT0yMDA1LiBJbiB0aGlzDQo+ IHdheSwgdGhlcmUgaXMgbm8gbmVlZCBmb3IgaW50cm9kdWNpbmcgdGhlIEluZGV4IGNvbmNlcHQg YW55bW9yZSBhbmQgdGhlcmVmb3JlDQo+IHRoZSBhcmNoaXRlY3R1cmUgYmVjb21lcyBtdWNoIGVh c3kgdG8gdW5kZXJzdGFuZC4gTW9yZSBpbXBvcnRhbnRseSwNCj4gY29tcGFyZWQgdG8gdGhlIGlu ZGV4IGJpbmRpbmcgYWR2ZXJ0aXNlbWVudCwgdGhlIGxhYmVsIGJpbmRpbmcgYWR2ZXJ0aXNlZCBi eQ0KPiB0aGUgSUdQIGlzIGV4YWN0bHkgdGhlIHNhbWUgYXMgdGhhdCBpbiB0aGUgbGFiZWwgZm9y d2FyZGluZyB0YWJsZSBmb3IgdGhvc2UgbW9zdCBTUg0KPiByb3V0ZXJzIHdoaWNoIGhhdmUgYWxs b2NhdGVkIHRoZSBhYm92ZSBjb21tb24gbGFiZWwgYmxvY2ssIHdoaWNoIGlzIG11Y2gNCj4gYmVu ZWZpY2lhbCB3aGVuIGRvaW5nIHRyb3VibGVzaG9vdGluZy4gVGhpcyBhcHByb2FjaCBkb2VzIG5v dCB2aW9sYXRlIHRoZQ0KPiBzdHJvbmdlc3QgTVBMUyBkb2dtYSAoaS5lLiwgbGFiZWxzIE1VU1Qg YmUgbG9jYWwpIHdoaWxlIQ0KPiAgdGFraW5nIGluDQo+IHRvIGFjY291bnQgdGhlIGFjdHVhbCBz aXR1YXRpb24sIElNSE8NCj4gDQo+IGFib3ZlIHdvdWxkIHJlcXVpcmUgdGhlICJzZWxkb20gU1Ig cm91dGVyIiB0byBrbm93IHRoZSBvZmZzZXQgZnJvbSB0aGUgU1JHQg0KPiB1c2VkIGJ5IG90aGVy IHJvdXRlcnMuIEhvdyBkbyB5b3UgZW52aXNpb24gdGhhdCB0byBiZSBsZWFybmVkPw0KDQpIaSBQ ZXRlciwNCg0KSSBkb24ndCB0aGluayBpdCdzIGEgYmlnIHByb2JsZW0uIFRoZSBjb21tb24gU1JH QiBjb3VsZCBlaXRoZXIgYmUgbWFudWFsbHkgY29uZmlndXJlZCBvbiB0aGUgc2VsZG9tIFNSIHJv dXRlciBvciBhZHZlcnRpc2VkIGJ5IHRoZSBNUy4NCg0KQmVzdCByZWdhcmRzLA0KWGlhb2h1DQoN Cj4gcmVnYXJkcywNCj4gUGV0ZXINCj4gDQo+ID4NCj4gPiBCZXN0IHJlZ2FyZHMsDQo+ID4gWGlh b2h1DQoNCg== From ppsenak@cisco.com Wed Jan 29 01:23:52 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 BB8AB1A0364; 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X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Ag0FAFnH6FKQ/khR/2dsb2JhbABZgwyEDLl/gQUWdIIlAQEBAwEjDwEFPwEBEAkCEgYCAgUMCggDAgIJAwIBAgE0Aw4GDQEFAgEBh3kIjgWbcZ9SF4EpjVYHCoJlgUkBA5gohkiLV4FvgT87 X-IronPort-AV: E=Sophos;i="4.95,741,1384300800"; d="scan'208";a="3676019" Received: from ams-core-1.cisco.com ([144.254.72.81]) by aer-iport-2.cisco.com with ESMTP; 29 Jan 2014 09:23:47 +0000 Received: from [10.55.51.201] (ams-ppsenak-8718.cisco.com [10.55.51.201]) by ams-core-1.cisco.com (8.14.5/8.14.5) with ESMTP id s0T9NkPL010217; Wed, 29 Jan 2014 09:23:47 GMT Message-ID: <52E8C8A2.8060306@cisco.com> Date: Wed, 29 Jan 2014 10:23:46 +0100 From: Peter Psenak User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:17.0) Gecko/20130509 Thunderbird/17.0.6 MIME-Version: 1.0 To: Xuxiaohu References: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248329@NKGEML512-MBS.china.huawei.com> <52E61BAF.2060208@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248431@NKGEML512-MBS.china.huawei.com> <52E63015.5090404@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE082493BE@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0824948F@NKGEML512-MBS.china.huawei.com> <52E8C589.9010408@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE082494C6@NKGEML512-MBS.china.huawei.com> In-Reply-To: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE082494C6@NKGEML512-MBS.china.huawei.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Cc: "ospf@ietf.org" , "spring@ietf.org" Subject: Re: [spring] [OSPF] fwd: New Version Notification for draft-xu-ospf-global-label-sid-adv-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: Wed, 29 Jan 2014 09:23:52 -0000 Xuxiaohu, On 1/29/14 10:16 , Xuxiaohu wrote: > > >> -----邮件原件----- >> 发件人: Peter Psenak [mailto:ppsenak@cisco.com] >> 发送时间: 2014年1月29日 17:11 >> 收件人: Xuxiaohu >> 抄送: ospf@ietf.org; spring@ietf.org >> 主题: Re: [spring] [OSPF] fwd: New Version Notification for >> draft-xu-ospf-global-label-sid-adv-00.txt >> >> Xiaohu, >> >> On 1/29/14 09:53 , Xuxiaohu wrote: >>> For example, assume a label block {1000, 1999} is allocated for prefix >> segments by almost all SR routers and a global label 1005 is allocated to a given >> prefix segment, for a given seldom SR router which couldn't preserve the above >> label block and allocates a different label block (e.g., {2000, 2999}) instead, a >> local label corresponding to that global label (or that prefix segment) could be >> calculated through offsetting, i.e., the result is 1005+ (2000-1000)=2005. In this >> way, there is no need for introducing the Index concept anymore and therefore >> the architecture becomes much easy to understand. More importantly, >> compared to the index binding advertisement, the label binding advertised by >> the IGP is exactly the same as that in the label forwarding table for those most SR >> routers which have allocated the above common label block, which is much >> beneficial when doing troubleshooting. This approach does not violate the >> strongest MPLS dogma (i.e., labels MUST be local) while! >> taking in >> to account the actual situation, IMHO >> >> above would require the "seldom SR router" to know the offset from the SRGB >> used by other routers. How do you envision that to be learned? > > Hi Peter, > > I don't think it's a big problem. The common SRGB could either be manually configured on the seldom SR router or advertised by the MS. manual configuration is not an option - just imagine you have multiple "seldom SR routers", each having a different label block. Now you not only need an offset for "common" block, but also offset between label blocks used on these "seldom SR routers". Once you start to advertise it, you are back to the model we have already, but you made it even worse with offsets. regards, Peter > > Best regards, > Xiaohu > >> regards, >> Peter >> >>> >>> Best regards, >>> Xiaohu > From xuxiaohu@huawei.com Wed Jan 29 01:58:35 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 714411A04DF; Wed, 29 Jan 2014 01:58:35 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.736 X-Spam-Level: X-Spam-Status: No, score=-4.736 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RP_MATCHES_RCVD=-0.535, 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 o2FaqTWAjZwv; Wed, 29 Jan 2014 01:58:33 -0800 (PST) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) by ietfa.amsl.com (Postfix) with ESMTP id B74941A037D; Wed, 29 Jan 2014 01:58:32 -0800 (PST) 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 BDB03697; Wed, 29 Jan 2014 09:58:29 +0000 (GMT) Received: from LHREML402-HUB.china.huawei.com (10.201.5.241) by lhreml204-edg.china.huawei.com (172.18.7.223) with Microsoft SMTP Server (TLS) id 14.3.158.1; Wed, 29 Jan 2014 09:57:49 +0000 Received: from NKGEML406-HUB.china.huawei.com (10.98.56.37) by lhreml402-hub.china.huawei.com (10.201.5.241) with Microsoft SMTP Server (TLS) id 14.3.158.1; Wed, 29 Jan 2014 09:58:08 +0000 Received: from NKGEML512-MBS.china.huawei.com ([169.254.8.45]) by nkgeml406-hub.china.huawei.com ([10.98.56.37]) with mapi id 14.03.0158.001; Wed, 29 Jan 2014 17:58:05 +0800 From: Xuxiaohu To: Peter Psenak Thread-Topic: [spring] [OSPF] fwd: New Version Notification for draft-xu-ospf-global-label-sid-adv-00.txt Thread-Index: AQHPFm0RHaJp205InUCDICUZBq6WQ5qX9Dow///P6ICAAIxY4P//i/mAgAM8uGCAADEksP//pqiAABDZ6FD//3ziAP//eUFQ Date: Wed, 29 Jan 2014 09:58:04 +0000 Message-ID: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE082494F0@NKGEML512-MBS.china.huawei.com> References: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248329@NKGEML512-MBS.china.huawei.com> <52E61BAF.2060208@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248431@NKGEML512-MBS.china.huawei.com> <52E63015.5090404@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE082493BE@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0824948F@NKGEML512-MBS.china.huawei.com> <52E8C589.9010408@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE082494C6@NKGEML512-MBS.china.huawei.com> <52E8C8A2.8060306@cisco.com> In-Reply-To: <52E8C8A2.8060306@cisco.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 Cc: "ospf@ietf.org" , "spring@ietf.org" Subject: Re: [spring] [OSPF] fwd: New Version Notification for draft-xu-ospf-global-label-sid-adv-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: Wed, 29 Jan 2014 09:58:35 -0000 DQoNCj4gLS0tLS3pgq7ku7bljp/ku7YtLS0tLQ0KPiDlj5Hku7bkuro6IFBldGVyIFBzZW5hayBb bWFpbHRvOnBwc2VuYWtAY2lzY28uY29tXQ0KPiDlj5HpgIHml7bpl7Q6IDIwMTTlubQx5pyIMjnm l6UgMTc6MjQNCj4g5pS25Lu25Lq6OiBYdXhpYW9odQ0KPiDmioTpgIE6IG9zcGZAaWV0Zi5vcmc7 IHNwcmluZ0BpZXRmLm9yZw0KPiDkuLvpopg6IFJlOiBbc3ByaW5nXSBbT1NQRl0gZndkOiBOZXcg VmVyc2lvbiBOb3RpZmljYXRpb24gZm9yDQo+IGRyYWZ0LXh1LW9zcGYtZ2xvYmFsLWxhYmVsLXNp ZC1hZHYtMDAudHh0DQo+IA0KPiBYdXhpYW9odSwNCj4gDQo+IE9uIDEvMjkvMTQgMTA6MTYgLCBY dXhpYW9odSB3cm90ZToNCj4gPg0KPiA+DQo+ID4+IC0tLS0t6YKu5Lu25Y6f5Lu2LS0tLS0NCj4g Pj4g5Y+R5Lu25Lq6OiBQZXRlciBQc2VuYWsgW21haWx0bzpwcHNlbmFrQGNpc2NvLmNvbV0NCj4g Pj4g5Y+R6YCB5pe26Ze0OiAyMDE05bm0MeaciDI55pelIDE3OjExDQo+ID4+IOaUtuS7tuS6ujog WHV4aWFvaHUNCj4gPj4g5oqE6YCBOiBvc3BmQGlldGYub3JnOyBzcHJpbmdAaWV0Zi5vcmcNCj4g Pj4g5Li76aKYOiBSZTogW3NwcmluZ10gW09TUEZdIGZ3ZDogTmV3IFZlcnNpb24gTm90aWZpY2F0 aW9uIGZvcg0KPiA+PiBkcmFmdC14dS1vc3BmLWdsb2JhbC1sYWJlbC1zaWQtYWR2LTAwLnR4dA0K PiA+Pg0KPiA+PiBYaWFvaHUsDQo+ID4+DQo+ID4+IE9uIDEvMjkvMTQgMDk6NTMgLCBYdXhpYW9o dSB3cm90ZToNCj4gPj4+IEZvciBleGFtcGxlLCBhc3N1bWUgYSBsYWJlbCBibG9jayB7MTAwMCwg MTk5OX0gaXMgYWxsb2NhdGVkIGZvcg0KPiA+Pj4gcHJlZml4DQo+ID4+IHNlZ21lbnRzIGJ5IGFs bW9zdCBhbGwgU1Igcm91dGVycyBhbmQgYSBnbG9iYWwgbGFiZWwgMTAwNSBpcw0KPiA+PiBhbGxv Y2F0ZWQgdG8gYSBnaXZlbiBwcmVmaXggc2VnbWVudCwgZm9yIGEgZ2l2ZW4gc2VsZG9tIFNSIHJv dXRlcg0KPiA+PiB3aGljaCBjb3VsZG4ndCBwcmVzZXJ2ZSB0aGUgYWJvdmUgbGFiZWwgYmxvY2sg YW5kIGFsbG9jYXRlcyBhDQo+ID4+IGRpZmZlcmVudCBsYWJlbCBibG9jayAoZS5nLiwgezIwMDAs IDI5OTl9KSBpbnN0ZWFkLCBhIGxvY2FsIGxhYmVsDQo+ID4+IGNvcnJlc3BvbmRpbmcgdG8gdGhh dCBnbG9iYWwgbGFiZWwgKG9yIHRoYXQgcHJlZml4IHNlZ21lbnQpIGNvdWxkIGJlDQo+ID4+IGNh bGN1bGF0ZWQgdGhyb3VnaCBvZmZzZXR0aW5nLCBpLmUuLCB0aGUgcmVzdWx0IGlzIDEwMDUrDQo+ ID4+ICgyMDAwLTEwMDApPTIwMDUuIEluIHRoaXMgd2F5LCB0aGVyZSBpcyBubyBuZWVkIGZvciBp bnRyb2R1Y2luZyB0aGUNCj4gPj4gSW5kZXggY29uY2VwdCBhbnltb3JlIGFuZCB0aGVyZWZvcmUg dGhlIGFyY2hpdGVjdHVyZSBiZWNvbWVzIG11Y2gNCj4gPj4gZWFzeSB0byB1bmRlcnN0YW5kLiBN b3JlIGltcG9ydGFudGx5LCBjb21wYXJlZCB0byB0aGUgaW5kZXggYmluZGluZw0KPiA+PiBhZHZl cnRpc2VtZW50LCB0aGUgbGFiZWwgYmluZGluZyBhZHZlcnRpc2VkIGJ5IHRoZSBJR1AgaXMgZXhh Y3RseSB0aGUNCj4gPj4gc2FtZSBhcyB0aGF0IGluIHRoZSBsYWJlbCBmb3J3YXJkaW5nIHRhYmxl IGZvciB0aG9zZSBtb3N0IFNSIHJvdXRlcnMNCj4gPj4gd2hpY2ggaGF2ZSBhbGxvY2F0ZWQgdGhl IGFib3ZlIGNvbW1vbiBsYWJlbCBibG9jaywgd2hpY2ggaXMgbXVjaA0KPiBiZW5lZmljaWFsIHdo ZW4gZG9pbmcgdHJvdWJsZXNob290aW5nLiBUaGlzIGFwcHJvYWNoIGRvZXMgbm90IHZpb2xhdGUg dGhlDQo+IHN0cm9uZ2VzdCBNUExTIGRvZ21hIChpLmUuLCBsYWJlbHMgTVVTVCBiZSBsb2NhbCkg d2hpbGUhDQo+ID4+ICAgdGFraW5nIGluDQo+ID4+IHRvIGFjY291bnQgdGhlIGFjdHVhbCBzaXR1 YXRpb24sIElNSE8NCj4gPj4NCj4gPj4gYWJvdmUgd291bGQgcmVxdWlyZSB0aGUgInNlbGRvbSBT UiByb3V0ZXIiIHRvIGtub3cgdGhlIG9mZnNldCBmcm9tDQo+ID4+IHRoZSBTUkdCIHVzZWQgYnkg b3RoZXIgcm91dGVycy4gSG93IGRvIHlvdSBlbnZpc2lvbiB0aGF0IHRvIGJlIGxlYXJuZWQ/DQo+ ID4NCj4gPiBIaSBQZXRlciwNCj4gPg0KPiA+IEkgZG9uJ3QgdGhpbmsgaXQncyBhIGJpZyBwcm9i bGVtLiBUaGUgY29tbW9uIFNSR0IgY291bGQgZWl0aGVyIGJlIG1hbnVhbGx5DQo+IGNvbmZpZ3Vy ZWQgb24gdGhlIHNlbGRvbSBTUiByb3V0ZXIgb3IgYWR2ZXJ0aXNlZCBieSB0aGUgTVMuDQo+IA0K PiBtYW51YWwgY29uZmlndXJhdGlvbiBpcyBub3QgYW4gb3B0aW9uIC0ganVzdCBpbWFnaW5lIHlv dSBoYXZlIG11bHRpcGxlICJzZWxkb20NCj4gU1Igcm91dGVycyIsIGVhY2ggaGF2aW5nIGEgZGlm ZmVyZW50IGxhYmVsIGJsb2NrLiBOb3cgeW91IG5vdCBvbmx5IG5lZWQgYW4NCj4gb2Zmc2V0IGZv ciAiY29tbW9uIiBibG9jaywgYnV0IGFsc28gb2Zmc2V0IGJldHdlZW4gbGFiZWwgYmxvY2tzIHVz ZWQgb24gdGhlc2UNCj4gInNlbGRvbSBTUiByb3V0ZXJzIi4NCg0KUGV0ZXIsDQoNCldoeSBkbyB5 b3UgbmVlZCBvZmZzZXQgYmV0d2VlbiBsYWJlbCBibG9ja3MgdXNlZCBvbiB0aGVzZSBzZWxkb20g U1Igcm91dGVycz8gVGhlIGNvbW1vbiBibG9jayBpcyB0aGUgb25seSBmcmFtZSBvZiByZWZlcmVu Y2UsIElNTy4gDQoNCj4gT25jZSB5b3Ugc3RhcnQgdG8gYWR2ZXJ0aXNlIGl0LCB5b3UgYXJlIGJh Y2sgdG8gdGhlIG1vZGVsIHdlIGhhdmUgYWxyZWFkeSwgYnV0DQo+IHlvdSBtYWRlIGl0IGV2ZW4g d29yc2Ugd2l0aCBvZmZzZXRzLg0KDQpJIGRvbid0IHRoaW5rIHNvLiBUYWtlIHRoZSBhYm92ZSBz aXR1YXRpb24gYXMgYW4gZXhhbXBsZSwgaW4gdGhlIGluZGV4IGJpbmRpbmcgbW9kZSwgeW91IGNv dWxkIGFsbG93IHRoZSBtb3N0IFNSIHJvdXRlcnMgdG8gYWR2ZXJ0aXNlIGl0cyBsYWJlbCByYW5n ZSBzdGFydGluZyB3aXRoIHplcm8gdG8gYWNoaWV2ZSB0aGUgYWJvdmUgZWZmZWN0IChhbHRob3Vn aCBpdCBjb25mbGljdHMgd2l0aCB0aGUgZGVmaW5pdGlvbiBvZiBsYWJlbCByYW5nZSkuIEhvd2V2 ZXIsIGZvciB0aGUgc2VsZG9tIFNSIHJvdXRlciwgd2hhdCBsYWJlbCByYW5nZSBzaG91bGQgaXQg YWR2ZXJ0aXNlPw0KDQpCZXN0IHJlZ2FyZHMsDQpYaWFvaHUgDQoNCj4gcmVnYXJkcywNCj4gUGV0 ZXINCj4gDQo+ID4NCj4gPiBCZXN0IHJlZ2FyZHMsDQo+ID4gWGlhb2h1DQo+ID4NCj4gPj4gcmVn YXJkcywNCj4gPj4gUGV0ZXINCj4gPj4NCj4gPj4+DQo+ID4+PiBCZXN0IHJlZ2FyZHMsDQo+ID4+ PiBYaWFvaHUNCj4gPg0KDQo= From ppsenak@cisco.com Wed Jan 29 02:28:56 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 782241A0229; 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X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Ag0FADHX6FKQ/khL/2dsb2JhbABZgwyEDLl/gQYWdIIlAQEBAwEjDwEFPwEBEAkCEgYCAgUMCggDAgIJAwIBAgE0Aw4GDQEFAgEBh3kIjhSbcZ9UF4EpjVYHCoJlgUkBA5gohkiLV4FvgT87 X-IronPort-AV: E=Sophos;i="4.95,741,1384300800"; d="scan'208";a="4348211" Received: from ams-core-2.cisco.com ([144.254.72.75]) by aer-iport-1.cisco.com with ESMTP; 29 Jan 2014 10:28:50 +0000 Received: from [10.148.128.68] ([10.148.128.68]) by ams-core-2.cisco.com (8.14.5/8.14.5) with ESMTP id s0TASoNo001906; Wed, 29 Jan 2014 10:28:50 GMT Message-ID: <52E8D7E2.2030100@cisco.com> Date: Wed, 29 Jan 2014 11:28:50 +0100 From: Peter Psenak User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:17.0) Gecko/20130509 Thunderbird/17.0.6 MIME-Version: 1.0 To: Xuxiaohu References: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248329@NKGEML512-MBS.china.huawei.com> <52E61BAF.2060208@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE08248431@NKGEML512-MBS.china.huawei.com> <52E63015.5090404@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE082493BE@NKGEML512-MBS.china.huawei.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE0824948F@NKGEML512-MBS.china.huawei.com> <52E8C589.9010408@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE082494C6@NKGEML512-MBS.china.huawei.com> <52E8C8A2.8060306@cisco.com> <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE082494F0@NKGEML512-MBS.china.huawei.com> In-Reply-To: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE082494F0@NKGEML512-MBS.china.huawei.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Cc: "ospf@ietf.org" , "spring@ietf.org" Subject: Re: [spring] [OSPF] fwd: New Version Notification for draft-xu-ospf-global-label-sid-adv-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: Wed, 29 Jan 2014 10:28:56 -0000 Xuxiaohu, On 1/29/14 10:58 , Xuxiaohu wrote: > > >> -----邮件原件----- >> 发件人: Peter Psenak [mailto:ppsenak@cisco.com] >> 发送时间: 2014年1月29日 17:24 >> 收件人: Xuxiaohu >> 抄送: ospf@ietf.org; spring@ietf.org >> 主题: Re: [spring] [OSPF] fwd: New Version Notification for >> draft-xu-ospf-global-label-sid-adv-00.txt >> >> Xuxiaohu, >> >> On 1/29/14 10:16 , Xuxiaohu wrote: >>> >>> >>>> -----邮件原件----- >>>> 发件人: Peter Psenak [mailto:ppsenak@cisco.com] >>>> 发送时间: 2014年1月29日 17:11 >>>> 收件人: Xuxiaohu >>>> 抄送: ospf@ietf.org; spring@ietf.org >>>> 主题: Re: [spring] [OSPF] fwd: New Version Notification for >>>> draft-xu-ospf-global-label-sid-adv-00.txt >>>> >>>> Xiaohu, >>>> >>>> On 1/29/14 09:53 , Xuxiaohu wrote: >>>>> For example, assume a label block {1000, 1999} is allocated for >>>>> prefix >>>> segments by almost all SR routers and a global label 1005 is >>>> allocated to a given prefix segment, for a given seldom SR router >>>> which couldn't preserve the above label block and allocates a >>>> different label block (e.g., {2000, 2999}) instead, a local label >>>> corresponding to that global label (or that prefix segment) could be >>>> calculated through offsetting, i.e., the result is 1005+ >>>> (2000-1000)=2005. In this way, there is no need for introducing the >>>> Index concept anymore and therefore the architecture becomes much >>>> easy to understand. More importantly, compared to the index binding >>>> advertisement, the label binding advertised by the IGP is exactly the >>>> same as that in the label forwarding table for those most SR routers >>>> which have allocated the above common label block, which is much >> beneficial when doing troubleshooting. This approach does not violate the >> strongest MPLS dogma (i.e., labels MUST be local) while! >>>> taking in >>>> to account the actual situation, IMHO >>>> >>>> above would require the "seldom SR router" to know the offset from >>>> the SRGB used by other routers. How do you envision that to be learned? >>> >>> Hi Peter, >>> >>> I don't think it's a big problem. The common SRGB could either be manually >> configured on the seldom SR router or advertised by the MS. >> >> manual configuration is not an option - just imagine you have multiple "seldom >> SR routers", each having a different label block. Now you not only need an >> offset for "common" block, but also offset between label blocks used on these >> "seldom SR routers". > > Peter, > > Why do you need offset between label blocks used on these seldom SR routers? The common block is the only frame of reference, IMO. let's imagine you have two "seldom SR routers", A and B, directly connected. A is using label block 1000-2000, B is using 2000-3000. For simplicity, let's assume rest of the routers use the block 0-1000. Now let's imagine you have a prefix X, which is advertised with label 25 from a router that uses the common block (0-1000). On A you configure the offset +1000, so it allocate a local label of 1025 for X. Now A wants to send a traffic for X via B. You would have to configure on A the offset of B as +2000 (against the common block) or as +1000 (against the A's block), so when A sends a traffic to B, it will use label 2025. No matter which method of specifying the offset you use, the point is that on A you need to know the offset of all "seldom SR" routers that you may end up sending traffic to - either directly, or indirectly. Such a configuration model does not scale. > >> Once you start to advertise it, you are back to the model we have already, but >> you made it even worse with offsets. > > I don't think so. Take the above situation as an example, in the index binding mode, you could allow the most SR routers to advertise its label range starting with zero to achieve the above effect (although it conflicts with the definition of label range). However, for the seldom SR router, what label range should it advertise? the simplest model is for every router (seldom or common) to advertise its label block. regards, Peter > > Best regards, > Xiaohu > >> regards, >> Peter >> >>> >>> Best regards, >>> Xiaohu >>> >>>> regards, >>>> Peter >>>> >>>>> >>>>> Best regards, >>>>> Xiaohu >>> > From sprevidi@cisco.com Thu Jan 30 02:31:08 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 5E08A1A042C for ; Thu, 30 Jan 2014 02:31:08 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -15.036 X-Spam-Level: X-Spam-Status: No, score=-15.036 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=-0.535, 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 gi3qyPMTjNsw for ; Thu, 30 Jan 2014 02:31:06 -0800 (PST) Received: from rcdn-iport-5.cisco.com (rcdn-iport-5.cisco.com [173.37.86.76]) by ietfa.amsl.com (Postfix) with ESMTP id 92DCE1A0418 for ; Thu, 30 Jan 2014 02:31:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=2663; q=dns/txt; s=iport; t=1391077863; x=1392287463; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-id:content-transfer-encoding: mime-version; bh=hXk+tlX6gLekLHWm8f9LOEKuQPnnLT7WjZYNrhOInBQ=; b=ZG3/yZe7iBR8ww1f6kKAzn+RpS0ba9R+umFXE7RnwDsHvmQH3/a3tlmY sx4Wwd0lathttAMdYyJ0UKIfL4cvfy5XZui5VlNy7Ek0/3NYOTlEWbr3M 4r9/Z4nCZOkeCD+HMa4PEixb6AGL8LSm4N2jYoxFTU1O29R8dZUCnUVzc A=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Ag0FALEo6lKtJV2a/2dsb2JhbABZgww4Swy8UU+BBRZ0giUBAQEDAQEBAWsLBQsCAQgSNCcLFw4CBA4FG4diCA3LRReMXIFSITMHgySBFASYKJIfgy2CKg X-IronPort-AV: E=Sophos;i="4.95,748,1384300800"; d="scan'208";a="300702523" Received: from rcdn-core-3.cisco.com ([173.37.93.154]) by rcdn-iport-5.cisco.com with ESMTP; 30 Jan 2014 10:31:03 +0000 Received: from xhc-aln-x06.cisco.com (xhc-aln-x06.cisco.com [173.36.12.80]) by rcdn-core-3.cisco.com (8.14.5/8.14.5) with ESMTP id s0UAV2vX013439 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=FAIL); Thu, 30 Jan 2014 10:31:03 GMT Received: from xmb-rcd-x01.cisco.com ([169.254.1.119]) by xhc-aln-x06.cisco.com ([173.36.12.80]) with mapi id 14.03.0123.003; Thu, 30 Jan 2014 04:31:02 -0600 From: "Stefano Previdi (sprevidi)" To: "Stewart Bryant (stbryant)" Thread-Topic: [spring] Lack of progress in SPRING WG Thread-Index: AQHPHEs8pfZfaUKogUuyt9HAG/Nd8pqdeLqA Date: Thu, 30 Jan 2014 10:31:02 +0000 Message-ID: References: <52E7E35C.7010104@cisco.com> In-Reply-To: <52E7E35C.7010104@cisco.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.61.161.110] Content-Type: text/plain; charset="Windows-1252" Content-ID: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Cc: "" , "" , "" Subject: Re: [spring] Lack of progress in SPRING WG 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, 30 Jan 2014 10:31:08 -0000 Stewart, =20 There has been extended amount of work on segment routing, as clearly=20 evidenced by the number of operator requirements, the vendors=20 commitments to support the technology, the public demo=92s, the operator=20 presentations at open forums and the planned released of the technology=20 by vendors. =20 In the IETF context, the work has also been impressive. We have=20 produced 14 IETF drafts to date (http://www.segment-routing.net/home/ietf)= =20 among which the following protocol extensions: =20 . draft-previdi-isis-segment-routing-extensions . draft-psenak-ospf-segment-routing-extensions . draft-psenak-ospf-segment-routing-ospfv3-extension . draft-sivabalan-pce-segment-routing . draft-filsfils-spring-segment-routing-mpls . draft-filsfils-spring-segment-routing-ldp-interop =20 have a clear consensus from all operators and vendors. We have made=20 explicit effort to restructure our texts such that we had clear=20 solutions documents specific to each protocol extension, separated=20 from use-case documents. A lot of effort has been put in this. This=20 should be recognized. =20 At the last IETF, there was wide consensus to adopt the segment=20 routing use-cases draft. The only request that was made was to remove=20 the illustrations based on segment routing such as to have a more=20 generic problem statement document. We took that AI and we are about=20 to release a 15th document to support spring work in London. =20 The amount of interest for Segment Routing is clear in the industry.=20 The amount of energy spent to support the IETF process is clear. There=20 is great consensus on the key elements as reflected by all the feedback=20 provided at IETF meetings or on the list. =20 In this context, a smooth standardization process is to be expected.=20 Don't you think so ? Thanks. s. On Jan 28, 2014, at 6:05 PM, Stewart Bryant wrote: > All, >=20 > We understood when the SPRING WG was formed that it was > addressing a problem of importance to both the network > operators and the equipment vendors. >=20 > We are therefore surprised that there seems to have been > no progress on setting out the requirements and architecture. >=20 > We are worried to see no apparent progress and we want to > understand what the problem is. If there is no interest in > continuing with this work in the IETF then we can close > the working group, but we suspect that there is actually > a lot of interest. >=20 > Stewart & Adrian > _______________________________________________ > spring mailing list > spring@ietf.org > https://www.ietf.org/mailman/listinfo/spring From Ruediger.Geib@telekom.de Thu Jan 30 04:29:32 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 EA6F31A038E for ; Thu, 30 Jan 2014 04:29:32 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.785 X-Spam-Level: X-Spam-Status: No, score=-2.785 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HELO_EQ_DE=0.35, RCVD_IN_DNSWL_LOW=-0.7, RP_MATCHES_RCVD=-0.535] 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 ugsWX6dS6mh9 for ; Thu, 30 Jan 2014 04:29:30 -0800 (PST) Received: from tcmail23.telekom.de (tcmail23.telekom.de [80.149.113.243]) by ietfa.amsl.com (Postfix) with ESMTP id 6A93A1A0207 for ; Thu, 30 Jan 2014 04:29:30 -0800 (PST) Received: from he111631.emea1.cds.t-internal.com ([10.134.93.23]) by tcmail21.telekom.de with ESMTP/TLS/AES128-SHA; 30 Jan 2014 13:29:23 +0100 Received: from HE111643.EMEA1.CDS.T-INTERNAL.COM ([169.254.3.20]) by HE111631.emea1.cds.t-internal.com ([::1]) with mapi; Thu, 30 Jan 2014 13:29:23 +0100 From: To: Date: Thu, 30 Jan 2014 13:29:20 +0100 Thread-Topic: [spring] Lack of progress in SPRING WG Thread-Index: Ac8cSyzPQXbr0g3aTnm6CABqGBt2fgBa3whA Message-ID: References: <52E7E35C.7010104@cisco.com> In-Reply-To: <52E7E35C.7010104@cisco.com> Accept-Language: en-US, de-DE Content-Language: de-DE X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US, de-DE Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Cc: spring@ietf.org Subject: Re: [spring] Lack of progress in SPRING WG 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, 30 Jan 2014 12:29:33 -0000 Stewart, a new version of the OAM use case is ready for publication. I'm waiting for= an IPR statement. Regards, Ruediger -----Urspr=FCngliche Nachricht----- Von: spring [mailto:spring-bounces@ietf.org] Im Auftrag von Stewart Bryant Gesendet: Dienstag, 28. Januar 2014 18:06 An: spring-chairs@tools.ietf.org; spring@ietf.org Cc: spring-ads@tools.ietf.org Betreff: [spring] Lack of progress in SPRING WG All, We understood when the SPRING WG was formed that it was addressing a proble= m of importance to both the network operators and the equipment vendors. We are therefore surprised that there seems to have been no progress on set= ting out the requirements and architecture. We are worried to see no apparent progress and we want to understand what t= he problem is. If there is no interest in continuing with this work in the = IETF then we can close the working group, but we suspect that there is actu= ally a lot of interest. Stewart & Adrian _______________________________________________ spring mailing list spring@ietf.org https://www.ietf.org/mailman/listinfo/spring From pierre.francois@imdea.org Fri Jan 31 03:01:46 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 038A81A057D for ; Fri, 31 Jan 2014 03:01:46 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.9 X-Spam-Level: X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, 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 UZDNdbAUs6om for ; Fri, 31 Jan 2014 03:01:43 -0800 (PST) Received: from estafeta21.imdea.org (maquina46.madrimasd.org [193.145.15.46]) by ietfa.amsl.com (Postfix) with ESMTP id D0BCA1A0571 for ; Fri, 31 Jan 2014 03:01:42 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by estafeta21.imdea.org (imdea mail daemon) with ESMTP id 6DA461B7849 for ; Fri, 31 Jan 2014 12:01:23 +0100 (CET) X-Virus-Scanned: by antispam-antivirus system at imdea.org Received: from estafeta21.imdea.org ([127.0.0.1]) by localhost (estafeta21.imdea.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 47OkYvyVmAqd for ; Fri, 31 Jan 2014 12:01:23 +0100 (CET) Received: from ams3-vpn-dhcp6517.cisco.com (173-38-208-169.cisco.com [173.38.208.169]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) (Authenticated sender: pierre.francois) by estafeta21.imdea.org (imdea mail daemon) with ESMTPSA id 8C4C71B7846 for ; Fri, 31 Jan 2014 12:01:22 +0100 (CET) From: Pierre Francois Content-Type: multipart/alternative; boundary="Apple-Mail=_D0DDF50F-5682-4D9C-BD8F-EFCD7E8638EE" Date: Fri, 31 Jan 2014 12:02:11 +0100 References: <20140131105907.26226.29912.idtracker@ietfa.amsl.com> To: "spring@ietf.org" Message-Id: Mime-Version: 1.0 (Mac OS X Mail 6.6 \(1510\)) X-Mailer: Apple Mail (2.1510) Subject: [spring] Fwd: I-D Action: draft-francois-sr-resiliency-use-case-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: Fri, 31 Jan 2014 11:01:46 -0000 --Apple-Mail=_D0DDF50F-5682-4D9C-BD8F-EFCD7E8638EE Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Hello,=20 Here comes a draft describing the various use-cases for resiliency in = SR.=20 Cheers, Pierre. Begin forwarded message: > From: internet-drafts@ietf.org > Subject: I-D Action: draft-francois-sr-resiliency-use-case-00.txt > Date: January 31, 2014 11:59:07 AM GMT+01:00 > To: i-d-announce@ietf.org > Reply-To: internet-drafts@ietf.org >=20 >=20 > A New Internet-Draft is available from the on-line Internet-Drafts = directories. >=20 >=20 > Title : Use-cases for Resiliency in Segment Routing > Authors : Pierre Francois > Clarence Filsfils > Bruno Decraene > Rob Shakir > Filename : draft-francois-sr-resiliency-use-case-00.txt > Pages : 7 > Date : 2014-01-31 >=20 > Abstract: > This document describes the use cases for resiliency in SR networks. >=20 >=20 > The IETF datatracker status page for this draft is: > = https://datatracker.ietf.org/doc/draft-francois-sr-resiliency-use-case/ >=20 > There's also a htmlized version available at: > http://tools.ietf.org/html/draft-francois-sr-resiliency-use-case-00 >=20 >=20 > 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. >=20 > Internet-Drafts are also available by anonymous FTP at: > ftp://ftp.ietf.org/internet-drafts/ >=20 > _______________________________________________ > 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 --Apple-Mail=_D0DDF50F-5682-4D9C-BD8F-EFCD7E8638EE Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=us-ascii
Subject: I-D Action: = draft-francois-sr-resiliency-use-case-00.txt
Date: January 31, 2014 = 11:59:07 AM GMT+01:00
Reply-To: = internet-drafts@ietf.org
<= /span>


A New Internet-Draft is available from the = on-line Internet-Drafts directories.


=        Title =           : Use-cases = for Resiliency in Segment Routing
=        Authors =         : Pierre Francois
=             &n= bsp;           &nbs= p;Clarence Filsfils
=             &n= bsp;           &nbs= p;Bruno Decraene
=             &n= bsp;           &nbs= p;Rob Shakir
= Filename        : = draft-francois-sr-resiliency-use-case-00.txt
Pages =           : 7
Date =            : = 2014-01-31

Abstract:
  This document describes the = use cases for resiliency in SR networks.


The IETF datatracker = status page for this draft is:
https://datatracker.ietf.org/doc/draft-francois-sr-resiliency-use-c= ase/

There's also a htmlized version available = at:
http://tools.ietf.org/html/draft-francois-sr-resiliency-use-case-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/

________________________= _______________________
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

= = --Apple-Mail=_D0DDF50F-5682-4D9C-BD8F-EFCD7E8638EE-- From pierre.francois@imdea.org Fri Jan 31 03:26:32 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 883191A058A for ; Fri, 31 Jan 2014 03:26:32 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.9 X-Spam-Level: X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, 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 iP2KnNadiwOL for ; Fri, 31 Jan 2014 03:26:30 -0800 (PST) Received: from estafeta21.imdea.org (maquina46.madrimasd.org [193.145.15.46]) by ietfa.amsl.com (Postfix) with ESMTP id ACA6F1A057D for ; Fri, 31 Jan 2014 03:26:30 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by estafeta21.imdea.org (imdea mail daemon) with ESMTP id 7BBFC1B79FE for ; Fri, 31 Jan 2014 12:26:11 +0100 (CET) X-Virus-Scanned: by antispam-antivirus system at imdea.org Received: from estafeta21.imdea.org ([127.0.0.1]) by localhost (estafeta21.imdea.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 4Pi8SP9tYb5J for ; Fri, 31 Jan 2014 12:26:11 +0100 (CET) Received: from ams3-vpn-dhcp6517.cisco.com (173-38-208-169.cisco.com [173.38.208.169]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) (Authenticated sender: pierre.francois) by estafeta21.imdea.org (imdea mail daemon) with ESMTPSA id 01EF01B79FD for ; Fri, 31 Jan 2014 12:26:10 +0100 (CET) From: Pierre Francois Content-Type: multipart/alternative; boundary="Apple-Mail=_AB36ECF9-CAB0-40E5-9A14-E29E376075C9" Date: Fri, 31 Jan 2014 12:27:00 +0100 References: <20140131112215.27940.20717.idtracker@ietfa.amsl.com> To: "spring@ietf.org" Message-Id: <0C65ECAB-A82A-48D4-B253-4326CC5FE2C1@imdea.org> Mime-Version: 1.0 (Mac OS X Mail 6.6 \(1510\)) X-Mailer: Apple Mail (2.1510) Subject: [spring] Fwd: I-D Action: draft-francois-spring-resiliency-use-case-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: Fri, 31 Jan 2014 11:26:32 -0000 --Apple-Mail=_AB36ECF9-CAB0-40E5-9A14-E29E376075C9 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Hello again,=20 Here comes the same draft, with the right title convention.=20 Cheers, Pierre. Begin forwarded message: > From: internet-drafts@ietf.org > Subject: I-D Action: draft-francois-spring-resiliency-use-case-00.txt > Date: January 31, 2014 12:22:15 PM GMT+01:00 > To: i-d-announce@ietf.org > Reply-To: internet-drafts@ietf.org >=20 >=20 > A New Internet-Draft is available from the on-line Internet-Drafts = directories. >=20 >=20 > Title : Use-cases for Resiliency in Segment Routing > Authors : Pierre Francois > Clarence Filsfils > Bruno Decraene > Rob Shakir > Filename : = draft-francois-spring-resiliency-use-case-00.txt > Pages : 7 > Date : 2014-01-31 >=20 > Abstract: > This document describes the use cases for resiliency in SR networks. >=20 >=20 > The IETF datatracker status page for this draft is: > = https://datatracker.ietf.org/doc/draft-francois-spring-resiliency-use-case= / >=20 > There's also a htmlized version available at: > = http://tools.ietf.org/html/draft-francois-spring-resiliency-use-case-00 >=20 >=20 > 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. >=20 > Internet-Drafts are also available by anonymous FTP at: > ftp://ftp.ietf.org/internet-drafts/ >=20 > _______________________________________________ > 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 --Apple-Mail=_AB36ECF9-CAB0-40E5-9A14-E29E376075C9 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=us-ascii
Subject: I-D Action: = draft-francois-spring-resiliency-use-case-00.txt
Date: January 31, 2014 = 12:22:15 PM GMT+01:00
Reply-To: = internet-drafts@ietf.org
<= /span>


A New Internet-Draft is available from the = on-line Internet-Drafts directories.


=        Title =           : Use-cases = for Resiliency in Segment Routing
=        Authors =         : Pierre Francois
=             &n= bsp;           &nbs= p;Clarence Filsfils
=             &n= bsp;           &nbs= p;Bruno Decraene
=             &n= bsp;           &nbs= p;Rob Shakir
= Filename        : = draft-francois-spring-resiliency-use-case-00.txt
Pages =           : 7
Date =            : = 2014-01-31

Abstract:
  This document describes the = use cases for resiliency in SR networks.


The IETF datatracker = status page for this draft is:
https://datatracker.ietf.org/doc/draft-francois-spring-resilien= cy-use-case/

There's also a htmlized version available = at:
http://tools.ietf.org/html/draft-francois-spring-resiliency-use-cas= e-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/

________________________= _______________________
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

= = --Apple-Mail=_AB36ECF9-CAB0-40E5-9A14-E29E376075C9--