Return-Path: X-Original-To: mpls@ietfa.amsl.com Delivered-To: mpls@ietfa.amsl.com Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A3AA61A8A44 for ; Tue, 17 Mar 2015 19:58:22 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.21 X-Spam-Level: X-Spam-Status: No, score=-4.21 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, T_RP_MATCHES_RCVD=-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 nhkXsgZeVoFu for ; Tue, 17 Mar 2015 19:58:20 -0700 (PDT) Received: from mail-gw1-out.broadcom.com (mail-gw1-out.broadcom.com [216.31.210.62]) by ietfa.amsl.com (Postfix) with ESMTP id C303D1A8A20 for ; Tue, 17 Mar 2015 19:58:20 -0700 (PDT) X-IronPort-AV: E=Sophos;i="5.11,419,1422950400"; d="scan'208";a="59885515" Received: from irvexchcas06.broadcom.com (HELO IRVEXCHCAS06.corp.ad.broadcom.com) ([10.9.208.53]) by mail-gw1-out.broadcom.com with ESMTP; 17 Mar 2015 20:04:24 -0700 Received: from SJEXCHCAS04.corp.ad.broadcom.com (10.16.203.10) by IRVEXCHCAS06.corp.ad.broadcom.com (10.9.208.53) with Microsoft SMTP Server (TLS) id 14.3.174.1; Tue, 17 Mar 2015 19:58:20 -0700 Received: from SJEXCHMB12.corp.ad.broadcom.com ([fe80::bc15:c1e1:c29a:36f7]) by SJEXCHCAS04.corp.ad.broadcom.com ([::1]) with mapi id 14.03.0174.001; Tue, 17 Mar 2015 19:58:19 -0700 From: Shahram Davari To: Kireeti Kompella Thread-Topic: [mpls] MPLS ring protection reconsidered ?? Thread-Index: AQHQX/TUVUeCFACSVk2sf3HFKHDlqZ0fzs7cgAIYOAD//6diEA== Date: Wed, 18 Mar 2015 02:58:18 +0000 Message-ID: <4A6CE49E6084B141B15C0713B8993F2831E63111@SJEXCHMB12.corp.ad.broadcom.com> References: <5506E75F.4080201@pi.nu> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.16.203.100] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Cc: "mpls@ietf.org" , "mpls-chairs@tools.ietf.org" , "draft-kompella-mpls-rmr@tools.ietf.org" , "draft-cheng-mpls-tp-shared-ring-protection@tools.ietf.org" Subject: Re: [mpls] MPLS ring protection reconsidered ?? X-BeenThere: mpls@ietf.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Multi-Protocol Label Switching WG List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 18 Mar 2015 02:58:22 -0000 S2lyZWV0aSwNCg0KSSB1bmRlcnN0YW5kIHRoZXJlIGFyZSBkaWZmZXJlbmNlcy4gQW5kIEkgYW0g T0sgdG8gaGF2ZSB0d28gc2VwYXJhdGUgZHJhZnRzLiBJIHdhcyBqdXN0IGhvcGluZyB3ZSBjb3Vs ZCBjb252ZXJnZSBvbiBvbmUgc29sdXRpb24uDQoNClRoeA0KU2hhaHJhbQ0KDQotLS0tLU9yaWdp bmFsIE1lc3NhZ2UtLS0tLQ0KRnJvbTogS2lyZWV0aSBLb21wZWxsYSBbbWFpbHRvOmtpcmVldGku a29tcGVsbGFAZ21haWwuY29tXSANClNlbnQ6IFdlZG5lc2RheSwgTWFyY2ggMTgsIDIwMTUgOTox NCBBTQ0KVG86IFNoYWhyYW0gRGF2YXJpDQpDYzogS2lyZWV0aSBLb21wZWxsYTsgTG9hIEFuZGVy c3NvbjsgbXBsc0BpZXRmLm9yZzsgbXBscy1jaGFpcnNAdG9vbHMuaWV0Zi5vcmc7IGRyYWZ0LWNo ZW5nLW1wbHMtdHAtc2hhcmVkLXJpbmctcHJvdGVjdGlvbkB0b29scy5pZXRmLm9yZzsgZHJhZnQt a29tcGVsbGEtbXBscy1ybXJAdG9vbHMuaWV0Zi5vcmcNClN1YmplY3Q6IFJlOiBbbXBsc10gTVBM UyByaW5nIHByb3RlY3Rpb24gcmVjb25zaWRlcmVkID8/DQoNClNoYWhyYW0sDQoNCg0KT24gTWFy IDE3LCAyMDE1LCBhdCAwMToxNCAsIFNoYWhyYW0gRGF2YXJpIDxkYXZhcmlAYnJvYWRjb20uY29t PiB3cm90ZToNCg0KPiBIaSBMb2ENCj4gDQo+IEkgc3VwcG9ydCBtZXJnaW5nIHRoZXNlIHR3byBk cmFmdHMgYXMgSSBtZW50aW9uZWQgaXQgb24gdGhlIE1pYyBkdXJpbmcgbGFzdCBJRVRGLiANCg0K SSBkb27igJl0Lg0KDQpIZXJl4oCZcyB3aHkgKGluIGFkZGl0aW9uIHRvIHBvaW50cyB0aGF0IG90 aGVycyBoYXZlIG1lbnRpb25lZCk6DQoxKSBUaGUgdHdvIGRyYWZ0cyBoYXZlIGRpZmZlcmVudCB2 aWV3cyBvZiByaW5nIExTUHMuICBkcmFmdC1jaGVuZyBjcmVhdGVzIExTUHMgb24gcmluZ3M7IFJN UiBjcmVhdGVzIHJpbmcgTFNQcyAoTFNQcyB0aGF0IHN0YXJ0IGFuZCBlbmQgYXQgdGhlIHNhbWUg bm9kZSkuDQoyKSBkcmFmdC1jaGVuZyBpcyBmb2N1c2VkIG9uIE1QTFMtVFA7IFJNUiBpcyBmb2N1 c2VkIG9uIElQL01QTFMgJiBNUExTLVRFDQozKSBSTVIgY29uc2lkZXJzIHRoZSBpc3N1ZSBvZiDi gJxieXBhc3MgbGlua3PigJ0uDQo0KSBSTVIsIGluIGFkZGl0aW9uIHRvIHByb3RlY3Rpb24sIGFs c28gYWltcyB0byBzaWduaWZpY2FudGx5IHJlZHVjZSB0aGUgY29uZmlndXJhdGlvbiBvZiByaW5n IExTUHMuDQoNCktpcmVldGkuDQoNCj4gUmVnYXJkcywNCj4gU2hhaHJhbQ0KPiANCj4gDQo+PiBP biBNYXIgMTYsIDIwMTUsIGF0IDEwOjIzIFBNLCBMb2EgQW5kZXJzc29uIDxsb2FAcGkubnU+IHdy b3RlOg0KPj4gDQo+PiANCj4+IEZvbGtzLA0KPj4gDQo+PiAodGFraW5nIG15IGNoYWlyIGhhdCBv ZmYgZm9yIGEgd2hpbGUsIGkuZS4gdGhpcyBzaG91bGQgbm90IGJlDQo+PiByZWFkIGFzIGEgY2hh aXIgZGlyZWN0aXZlLCBqdXN0IGEgYml0IG9mIG11bWJsaW5nIHRoYXQgY29tZXMgb3V0DQo+PiB0 aGlua2luZyBhYm91dCBob3cgdG8gcHJvZ3Jlc3MgZG9jdW1lbnRzLikNCj4+IA0KPj4gQXMgZmFy IGJhY2sgcyB0aGUgNzNyZCBJRVRGIGluIE1pbm5lYXBvbGlzIEpvaG4gYW5kIEFkcmlhbiBtYWRl DQo+PiBhIHJlcG9ydCBvbiAiUmVxdWlyZW1lbnRzIGZvciBSaW5nIFByb3RlY3Rpb24NCmluIE1Q TFMtVFAiLiBUaGUNCj4+IGNvbmNsdXNpb25zIHdlcmUgdGhhdCB3ZSBjb3VsZCBkbyB0b3BvbG9n eSBzcGVjaWZpYyBwcm90ZWN0aW9uDQo+PiBzb2x1dGlvbnMgaWYgdGhlIGJlbmVmaXRzIGFyZSBi aWcgZW5vdWdoLg0KPj4gDQo+PiBTdWNoIHNvbHV0aW9ucyBuZWVkIHRvIG1lZXQgdGhlIHNhbWUg cmVxdWlyZW1lbnRzIGFzIGxpbmVhcg0KPj4gcHJvdGVjdGlvbiBhbmQgaXQgaGFzIHRvIGJlIHNo b3cgdGhhdCBpdCBjYW4ndCBiZSBkb25lIGJ5IGxpbmVhcg0KPj4gcHJvdGVjdGlvbiBvbmx5Lg0K Pj4gDQo+PiBBdCB0aGF0IHRpbWUgd2UgZGlkIG5vdCBzZWUgdGhhdCB0aGVyZSB3ZXJlIHRoaW5n cyB0aGF0IHdvdWxkIG5vdA0KPj4gYmUgYXMgcmVhZGlseSBkb25lIGJ5IHRoZSBsaW5lYXIgcHJv dGVjdGlvbiBiZWluZyBzcGVjaWZpZWQgYXQgdGhhdA0KPj4gdGltZS4NCj4+IA0KPj4gVG9kYXkg d2UgaGF2ZSB0byBkcmFmdHMgdGhhdCBhZGRyZXNzIHJpbmcgdG9wb2xvZ2llcywgb25lIGRyYWZ0 LWtvbXBlbGxhLW1wbHMtcm1yIGFkZHJlc3NlcyBSZXNpbGllbnQgTVBMUyBSaW5ncyBpbiBhbiBN UExTLVRFDQo+PiBlbnZpcm9ubWVudC4gVGhlIG90aGVyIGRyYWZ0LWNoZW5nLW1wbHMtdHAtc2hh cmVkLXJpbmctcHJvdGVjdGlvbg0KPj4gYWRkcmVzc2VzIHByb3RlY3Rpb24gaW4gYW4gTVBMUy1U UCBlbnZpcm9ubWVudC4NCj4+IA0KPj4gQm90aCByZWNvZ25pemVzIHRoYXQgcmluZyB0b3BvbG9n aWVzIGFyZSB2ZXJ5IGNvbW1vbiBhbmQgdGhhdCB2ZXJ5DQo+PiBlZmZpY2llbnQgbWVjaGFuaXNt IGZvciBrZWVwaW5nIHRyYWZmaWMgZmxvd2luZyBpbiBjYXNlIG9mIGZhaWx1cmVzDQo+PiBhcmUg cG9zc2libGUgdG8gZGVzaWduLiBTb21ldGltZSBmYXIgYmV0dGVyIHRoYW4gd2hhdCBpcyB0aGUg Y2FzZSBpZg0KPj4gdGhlIGFjdHVhbCByaW5nIHRvcG9sb2dpZXMgYXJlIHZpZXcgYXMgYSBsaW5l YXIgdG9wb2xvZ3ksDQo+PiANCj4+IFRoZSBmaXJzdCBkb2N1bWVudCAoZHJhZnQta29tcGVsbGEt ICkgbG9va3MgcHJpbWFyaWx5IG9uIHRoZSBvcGVyYXRpb25zDQo+PiB3aXRoaW4gYSBzaW5nbGUg cmluZyBhbmQgaG93IGZhc3QgYW5kIHNpbXBsZSBtZWNoYW5pc21zIGZvciBwcm90ZWN0aW9uDQo+ PiBjYW4gYmUgZGVwbG95ZWQuIEEgcmluZyB0b3BvbG9neSBpcyBhIHZlcnkgY29tbW9uIGRlcGxv eW1lbnQgc2NlbmFyaW8uDQo+PiBXaGlsZSwgdGhlIGRyYWZ0LWtvbXBlbGxhIGZyb20gYSBzb2x1 dGlvbnMgcG9pbnQgaXMgc29tZXdoYXQgb3J0aG9nb25hbA0KPj4gdG8gZHJhZnQtY2hlbmcsIGl0 IGRvZXMgYWxzbyBkaXNjdXNzIHRoZSBkeW5hbWljIGNvbnRyb2wgcGxhbmUgZm9yIG1wbHMNCj4+ IHJpbmcsIGluY2x1ZGluZyBhdXRvLWRpc2NvdmVyeSBhbmQgc2lnbmFsaW5nLiBJdCBzZWVtcyB0 aGF0IHRoZXJlIGFyZQ0KPj4gb3Bwb3J0dW5pdGllcyBmb3IgY28tb3BlcmF0aW9uIGJldHdlZW4g dGhlIHR3byBkcmFmdHMgaW4gdGhpcyBhcmVhLg0KPj4gDQo+PiBUaGUgb3RoZXIgKGRyYWZ0LWNo ZW5nLSApIGxvb2tzIGF0IHdoYXQgaXMgY2FsbGVkIE1QTFMgc2hhcmVkIHJpbmcsIGkuZS4NCj4+ IGEgcmF0aGVyIGhpZ2ggbnVtYmVyIGNhbiBzaGFyZWQgdGhlIHNhbWUgcGF0aCBhcm91bmQgdGhl IHJpbmcsIGFuZCBhbGwNCj4+IHRyYWZmaWMgY2FuIGJlIHByb3RlY3RlZCBieSBhIHNpbmdsZSBv cGVyYXRpb24uDQo+PiBBbm90aGVyIGFzcGVjdCBvZiB0aGUgc2hhcmVkIHR1bm5lbCBpcyB0aGF0 IGlmIHBhcnQgb2YgdGhlIHJpbmcNCj4+ICh0eXBpY2FsbHkgMiBub2RlcyBhbmQgb25lIGxpbmsp IGFyZSBwYXJ0IG9mIG1vcmUgdGhhbiBvbmUgcmluZy4gSXQNCj4+IGJlY29tZXMgcG9zc2libGUg dG8gcHJvdGVjdCBhZ2FpbnN0IG1vcmUgdGhhbiBvbmUgZmFpbHVyZS4NCj4+IA0KPj4gTWF5YmUg aXQgaXMgdGltZSB0byByZXZpc2l0IHRoZSBxdWVzdGlvbiBhbmQgc2VlIGlmIHdlIHdhbnQgdG8g YWRvcHQNCj4+IHdvcmtpbmcgZ3JvdXAgZG9jdW1lbnRzIGZvciB0aGUgdHdvIHNjZW5hcmlvcyBv dXRsaW5lZCBhYm92ZS4NCj4+IA0KPj4gL0xvYQ0KPj4gLS0gDQo+PiANCj4+IA0KPj4gTG9hIEFu ZGVyc3NvbiAgICAgICAgICAgICAgICAgICAgICAgIGVtYWlsOiBsb2FAbWFpbDAxLmh1YXdlaS5j b20NCj4+IFNlbmlvciBNUExTIEV4cGVydCAgICAgICAgICAgICAgICAgICAgICAgICAgbG9hQHBp Lm51DQo+PiBIdWF3ZWkgVGVjaG5vbG9naWVzIChjb25zdWx0YW50KSAgICAgcGhvbmU6ICs0NiA3 MzkgODEgMjEgNjQNCj4+IA0KPj4gX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX18NCj4+IG1wbHMgbWFpbGluZyBsaXN0DQo+PiBtcGxzQGlldGYub3JnDQo+PiBo dHRwczovL3d3dy5pZXRmLm9yZy9tYWlsbWFuL2xpc3RpbmZvL21wbHMNCj4gDQo+IF9fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fDQo+IG1wbHMgbWFpbGluZyBs aXN0DQo+IG1wbHNAaWV0Zi5vcmcNCj4gaHR0cHM6Ly93d3cuaWV0Zi5vcmcvbWFpbG1hbi9saXN0 aW5mby9tcGxzDQoNCg==