Re: [Idr] [bess] Type 1 RD for Pure IPv6 network -- EVPN

"Jakob Heitz (jheitz)" <jheitz@cisco.com> Thu, 04 February 2021 05:51 UTC

Return-Path: <jheitz@cisco.com>
X-Original-To: idr@ietfa.amsl.com
Delivered-To: idr@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5C0FF3A10A0; Wed, 3 Feb 2021 21:51:30 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -9.609
X-Spam-Level:
X-Spam-Status: No, score=-9.609 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HTML_MESSAGE=0.001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001, T_REMOTE_IMAGE=0.01, URIBL_BLOCKED=0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com header.b=CXMfegby; dkim=pass (1024-bit key) header.d=cisco.onmicrosoft.com header.b=tn4PTys7
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 NS5hbmEfw7xf; Wed, 3 Feb 2021 21:51:28 -0800 (PST)
Received: from alln-iport-3.cisco.com (alln-iport-3.cisco.com [173.37.142.90]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 0DE723A109F; Wed, 3 Feb 2021 21:51:28 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=19924; q=dns/txt; s=iport; t=1612417888; x=1613627488; h=from:to:cc:subject:date:message-id:references: in-reply-to:mime-version; bh=ZK3nGCgZax5AvLGwjgGLzotu0m8aJt/ldUfzPkTQup0=; b=CXMfegbyxEIj7QfI8W6z8gBJsMx6PzqwIpQCfs4TBBRlFJxyHLDSTPbh 7PvsHQoh4ukcdVNZWVyxkG97I94NnwSo5w7pftwc8Vfn1kGqB4WpSQLju HCVhuIhhnf39OFyVBi3CdntqvpNBlGZL5O8IVLyIvMl4vsJAsfwC2E59s k=;
X-IPAS-Result: =?us-ascii?q?A0BVAAAVihtg/4MNJK1fAxwBAQEBAQEHAQESAQEEBAEBg?= =?us-ascii?q?XsHAQELAYEiMCMuB3ZaNjGEQINIA4RZiTIDih2KCYRzgS4UgREDVAsBAQENA?= =?us-ascii?q?QEjCgIEAQGESgIXgWUCJTQJDgIDAQEBAwIDAQEBAQUBAQECAQYEcYVhDYVzA?= =?us-ascii?q?QEBBCMKEwEBNwEPAgEIBwcDBAEBKAMCAgIfERQJCAIEDgUIE4MMgX5XAy4BD?= =?us-ascii?q?qYWAooldoEygwUBAQaBMwGDZw0LghIJgSEXAYJ2hAUBhkImG4FBP4ERQ4IoL?= =?us-ascii?q?j6CG0IBgSsBEgEjFQoVCAmCUhcdgiyBWXNmFBsjBhstRIENLRkQA5J/QYc9j?= =?us-ascii?q?ESQa1sKgnqJNo0khUqGXZxChiuME40egwGOdwGEUAICAgIEBQIOAQEGgVY6Z?= =?us-ascii?q?3BwFYMkCUcXAg2OIQwXg06KWXQ3AgYBCQEBAwl8iFUtghcBAQ?=
IronPort-PHdr: =?us-ascii?q?9a23=3AaP638RVBesFcWTbFtaGiMO07xCHV8LGuZFwc94?= =?us-ascii?q?YnhrRSc6+q45XlOgnF6O5wiEPSBNyHuf1BguvS9avnXD9I7ZWAtSUEd5pBH1?= =?us-ascii?q?8AhN4NlgMtSMiCFQXgLfHsYiB7eaYKVFJs83yhd0QAHsH4ag7dp3Sz6XgZHR?= =?us-ascii?q?CsfQZwL/7+T4jVicn/3uuu+prVNgNPgjf1Yb57IBis6wvLscxDiop5IaF3wR?= =?us-ascii?q?zM8XY=3D?=
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-AV: E=Sophos;i="5.79,400,1602547200"; d="scan'208,217";a="639883474"
Received: from alln-core-1.cisco.com ([173.36.13.131]) by alln-iport-3.cisco.com with ESMTP/TLS/DHE-RSA-SEED-SHA; 04 Feb 2021 05:51:27 +0000
Received: from XCH-RCD-003.cisco.com (xch-rcd-003.cisco.com [173.37.102.13]) by alln-core-1.cisco.com (8.15.2/8.15.2) with ESMTPS id 1145pQJM027300 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=FAIL); Thu, 4 Feb 2021 05:51:27 GMT
Received: from xfe-rcd-003.cisco.com (173.37.227.251) by XCH-RCD-003.cisco.com (173.37.102.13) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 3 Feb 2021 23:51:26 -0600
Received: from xhs-rtp-002.cisco.com (64.101.210.229) by xfe-rcd-003.cisco.com (173.37.227.251) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.3; Wed, 3 Feb 2021 23:51:26 -0600
Received: from NAM04-CO1-obe.outbound.protection.outlook.com (64.101.32.56) by xhs-rtp-002.cisco.com (64.101.210.229) with Microsoft SMTP Server (TLS) id 15.0.1497.2 via Frontend Transport; Thu, 4 Feb 2021 00:51:26 -0500
ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=ETY08STyFwIAIZ7e217F4jbx0jlBii7ZMAwPxXUwiX78PhWOtQD/ABWwIldzirFQxZiWUPgvM+D/5XmJ5UkGbQ9jD9tx8gmBpdRMJkATHRjH41lHDf37+X0qAvHZ9uKcTWNolCnoncadQmAmVxDmWdcddOpldrzu5TBwcZS8lW0OSYjurv79wigztS77ohXbbMYz5u9Wyo6P+ZVukQzAAOJ0UL6DbT2OL8UjlIuKBdqFhn1hIaqYO/4v+o+f7+Rf+jimISc/ippalYcL7JK2GWXvuYCaXb6sDczKNJeWzZH0Y61ZlNzGJdbgY6J4Z8RnFXWm2PtccMkXnWwe27+FEA==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=ZK3nGCgZax5AvLGwjgGLzotu0m8aJt/ldUfzPkTQup0=; b=L0VyCwa0EhjbxfaP5fBKc4zIHlByva0fWcvo4mBmma37T3bad2dG4MCwlpuhhxb+9enkR6PGRqncT243bGroX1y7GBU72x2u2RtOp4KXX3Ve9S7npXQeESEutFjj0gUxfwEvPGlQwqRfAjTLJCv8srl/gDma4VIbAClDP0m0VrpO/QRO8FCkyrWBN+m0uLkwDPqWlceVS/BSIqQVV79dtrGUZBZb1KNpF5eAI487+kThb4Md61H5+5DogEuEmvk+by/1OGTLV60kbip/dzSWaceE1opONDvnuQXMj4iQXpYrQ5ayd8hZEqjq3fCkGTGVMj0kWl9byQIuVbjB3CcNwg==
ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=cisco.com; dmarc=pass action=none header.from=cisco.com; dkim=pass header.d=cisco.com; arc=none
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cisco.onmicrosoft.com; s=selector2-cisco-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=ZK3nGCgZax5AvLGwjgGLzotu0m8aJt/ldUfzPkTQup0=; b=tn4PTys7yFSrHtj3MpHMLY8SCjeZEEyL+pNKqyndRUSxOrXsz7BTk8n+YYY8FR+2/hWBEJeKjM+uExYdibdpg7BtLBZUSpF+Ke8QPMn7NSLSG8NBOrHDuBoFwkirbFrh1teWFqmKCe1MZYgPa3nhvyKN3JwqLgf2Klc5Onuyr9I=
Received: from BYAPR11MB3207.namprd11.prod.outlook.com (2603:10b6:a03:7c::14) by SJ0PR11MB4879.namprd11.prod.outlook.com (2603:10b6:a03:2da::8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3805.16; Thu, 4 Feb 2021 05:51:24 +0000
Received: from BYAPR11MB3207.namprd11.prod.outlook.com ([fe80::c951:3ae4:1aca:9daf]) by BYAPR11MB3207.namprd11.prod.outlook.com ([fe80::c951:3ae4:1aca:9daf%3]) with mapi id 15.20.3825.020; Thu, 4 Feb 2021 05:51:24 +0000
From: "Jakob Heitz (jheitz)" <jheitz@cisco.com>
To: Gyan Mishra <hayabusagsm@gmail.com>
CC: Muthu Arul Mozhi Perumal <muthu.arul@gmail.com>, TULASI RAM REDDY <tulasiramireddy@gmail.com>, "bess@ietf.org" <bess@ietf.org>, "idr@ietf.org" <idr@ietf.org>
Thread-Topic: [Idr] [bess] Type 1 RD for Pure IPv6 network -- EVPN
Thread-Index: AQHW+exnYMGkmU3BlkegfdqiOcg+zapGdusAgADuexCAABeNgIAAAgYw
Date: Thu, 4 Feb 2021 05:51:24 +0000
Message-ID: <BYAPR11MB3207E567032CC054C12FCDDFC0B39@BYAPR11MB3207.namprd11.prod.outlook.com>
References: <CA+JENaK55mrR0hDEbTC62kASxTLtEfbmRkWh-VUhRU3oPQcBVA@mail.gmail.com> <CAKz0y8zOjsHS-_Nm7b_AYVy93zE4aDxvKJ+iTBtMDmdP5SCCoQ@mail.gmail.com> <CABNhwV3Jy_gH351+COn-ta14T5WVb0aixb9598nHHrJceOyz_Q@mail.gmail.com> <CAKz0y8zDkZ9q5f5B7VWdmtSwoXtDhuYzfTRyMpd52-=vpHsOrw@mail.gmail.com> <CABNhwV2=utxO62LMD1im7-Ts0hsKT83YQy_3cBtnu0xLVecRbQ@mail.gmail.com> <BYAPR11MB3207A4080A64B6C632617D5EC0B39@BYAPR11MB3207.namprd11.prod.outlook.com> <CABNhwV3RdEyrKtsb4T76DDMs-v3wKwXQW_2OAun-wUNOht1cNA@mail.gmail.com>
In-Reply-To: <CABNhwV3RdEyrKtsb4T76DDMs-v3wKwXQW_2OAun-wUNOht1cNA@mail.gmail.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
authentication-results: gmail.com; dkim=none (message not signed) header.d=none;gmail.com; dmarc=none action=none header.from=cisco.com;
x-originating-ip: [2601:647:5701:46e0:8429:2e96:aefe:b92a]
x-ms-publictraffictype: Email
x-ms-office365-filtering-correlation-id: 46a277e9-511c-49dc-fc9f-08d8c8d0e84a
x-ms-traffictypediagnostic: SJ0PR11MB4879:
x-microsoft-antispam-prvs: <SJ0PR11MB4879CC9EA225A22FFCC3374BC0B39@SJ0PR11MB4879.namprd11.prod.outlook.com>
x-ms-oob-tlc-oobclassifiers: OLM:10000;
x-ms-exchange-senderadcheck: 1
x-microsoft-antispam: BCL:0;
x-microsoft-antispam-message-info: h/PQyuJOb6lqgUoetJ4zQppWf1fMaK5jSvwlq5G56YeW+F1/Haaca1oBJSry66Dfr5shJ+xt2aoCuj28xwDdDGxluaICW46nhGsWYbA5bw5d3xOftIJNoEb0230I2NjGjM1T+2OPro6GTYwSuhJ/dpHUFt1CNmmtNfUTDbBbf15oFV4iIdu7Wr4SfVzm/4PvJg9m1+3iwGcbP0arXZOMttIwEFQMLQ2eBxGeP1UpyI0hedhg1URMplVZrQ5Gdb2e0uDz4mxZEEjytyvLYOldWaS8XCdy1IrRfDLxAAA+7A9CHeKvRjlx9TYdgC0MG3vNJ2+F6rnP+unvkJY7+Bm+fflrhBqLi+xp9JGUdylFzZ/UFc2canbVY4zVWqOmG/ZIvDomt3c90pjmtjNfjjGbufd/aSO6maNRBekez9IHiUvB+zDVYw1YjHts8NvImc2w+sHmre2e830IJJGsl1C6ygSkBfgeg47AukFPP/0VJoYLrJs9VTvI3Qa1ahcVPgIvAP9jd4Lvnu5rAJvh1HXKoyyqli57wVgP9lqT5v6ic7cO2nAWiwamZuQPJHzRXEDZf8vEzAf9Trlz4wuvSylgLGobjQ7gBnJ1t2N7v+MYMRM=
x-forefront-antispam-report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:BYAPR11MB3207.namprd11.prod.outlook.com; PTR:; CAT:NONE; SFS:(346002)(396003)(376002)(136003)(366004)(39860400002)(76116006)(66946007)(66556008)(66476007)(52536014)(5660300002)(64756008)(54906003)(186003)(166002)(66574015)(6506007)(9686003)(83380400001)(71200400001)(316002)(8676002)(8936002)(2906002)(7696005)(86362001)(478600001)(6916009)(66446008)(4326008)(33656002)(53546011)(55016002); DIR:OUT; SFP:1101;
x-ms-exchange-antispam-messagedata: =?utf-8?B?MnBGeHNGblkxSUZUNEduRGxRcnE5RFo4OGJyb2NCaWx0a3c0S3R0UzlPVFIy?= =?utf-8?B?L1dScFN2UVFUSm4ySUFqUmFGV2FlVXdzZXp2c3lmRDR5ejRPK1l6LzNnTWpk?= =?utf-8?B?NThPWG1jaVJRYTlWOHlZTzZ3b1RRelBiZ2tMNFNZd0ZieC9kMDBDZCt0c2dH?= =?utf-8?B?dXdORmx6QlY5SmJSUk9TWWwxSW9ZMEQwMzhrVDdKNC81ZTBCd2lKMENUZ25l?= =?utf-8?B?UitHY2h6SFhIMGV3Z1hxbmhNYzl0djBTUCt6L0hiUytzLzhCUkdtN0wydEJP?= =?utf-8?B?VGlCZS9KdjcxZk56c1ppT3ZXV2s2RHRMaW5iQTVCanpIMnQ0Y1A1UG1WVlFn?= =?utf-8?B?c3RzUE9NVmpLRUVJMXN0MEQ1enM4azVmRllmSW9tb09HUHlld0hmTElPL2xi?= =?utf-8?B?M0NVVWlVSTdscHZWOHRxbmhXLythREtWKzRGc3llY0xaWUlNWHNnSnhBaGp1?= =?utf-8?B?ajRHUmx2YnpDUmhXc0pTNGlYKytYQXdsN3hRSEJISTNxV0NMeWVEOElTVk5p?= =?utf-8?B?eTQ0Mm9sT1dWOWZJSFBuM21VYlRyVjVRWlJMMWZjM0R5Und1M0s2aVV0NTZi?= =?utf-8?B?aGtJV1dHZ3g1U09DK1YzaXhaaWtpOHlMeE9hWWdTWHNZY2kvQTdsUENYakxI?= =?utf-8?B?K3ZudWZFSEJkMFJQTWNZczFBZVdhQlZBVTBLUVdvZ2NSU3pLOTNGbHNmbjU2?= =?utf-8?B?eGNkYlhPSG9FSFlUd09wbi9PQTdRRk8yUzlLaVBNdXF5NmxQR1lQc3dRQ1FH?= =?utf-8?B?cGNBOFRKVllOVzdkWURPR2JWUVp4MElWZXgzVjBhUnh4bURxZnZDUnJ3MjNK?= =?utf-8?B?MGVOMDZjemhnNUxseDkyaUZ4b0dycFRiVmVuMTVyUnVjbURkUlNIa2FIZmc2?= =?utf-8?B?eTkvYnFoMVJUd3ZVOHd0UkV0U05veUNobnlyQ0wwL1JLUURFQm1qeXNVUFdt?= =?utf-8?B?N3R0RE9PTWFSTmU5NHdzaUFHUjI0NDYwNVNNUW9TanhjQ3J3MEVFUlhCdVh4?= =?utf-8?B?VU4yWDYwUWFhTjVaN2JmVk54azgxNUduRkxDYzV4ME00cjNjS2JwWHQ0eGFt?= =?utf-8?B?M0dMd1dmeVIvMC85NVo0ZzcyY0Q0TmhjOFRVYnRObkRKSnoyUVY0ZnJ3L281?= =?utf-8?B?OHRUNWRNVjdETWprSEFQZ0lTQkcvM0pKaE5DM0JYRmpaVVVXYUl5Z0NENkxP?= =?utf-8?B?ajdBS0M2L1pNakhITGNEeCtlS1VqZVJoT0FiOHd3K05lNDBRUTBtNTlTYS9i?= =?utf-8?B?ZklCWE9XYkFjTzEzNjBmWGdmcDhXay83M0c3KzZxNHRaK28rQy9LSlNnSmN4?= =?utf-8?B?Y29UTWlmV0U5azBFa3dOWHM4dXVPM2o3aHE1MXd1TGJ1OFVsbUVjamVuRmtF?= =?utf-8?B?Y05wQXF0YWdEc3FOSVFDRUtTQW00MS9uZVdlY0JROVJLNzJsM2NVb1BnWkk1?= =?utf-8?B?VytQUk54VTBKSlp5U3hHKzdRQjJQeTdKak1vMWswamhRa29uMFJJRUgrV2Vm?= =?utf-8?B?YlMvVzEwMjBQQjBBcU9FUExjNnFHMFpEaFYveVQybHZmcFRoVlRKaXZXM1JV?= =?utf-8?B?UkNEUjkrUFJqMVBiTm91S2NLbm5odGxrS1ZGYkNhY25xeFZjWEwvQW5QQTJH?= =?utf-8?B?VlF2Y2c4RDVNRjAzamF5T2NkYTlhbWlIUTQxRG1uK3R3c1ZXeEozZWVjK2Ur?= =?utf-8?B?WjhtNU85R3BNREp6bE53UWlKQ0F6TkNVL1VqNC9DM0h5ZzUrTTE4NjRvTW90?= =?utf-8?B?UWtFakVBWm91anB2VXNUUzJEb0s5R0RWYlFUZVZRd3JvWmM5T1lLckxvQWFp?= =?utf-8?B?YnNUUk5jTVJHcTl5aUNWMm9mZ2Y1Qml0bzNmSDRDSlNFZnpBYjkyL2FYaFZs?= =?utf-8?Q?WYv+y8ojivOyY?=
x-ms-exchange-transport-forked: True
Content-Type: multipart/alternative; boundary="_000_BYAPR11MB3207E567032CC054C12FCDDFC0B39BYAPR11MB3207namp_"
MIME-Version: 1.0
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: BYAPR11MB3207.namprd11.prod.outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 46a277e9-511c-49dc-fc9f-08d8c8d0e84a
X-MS-Exchange-CrossTenant-originalarrivaltime: 04 Feb 2021 05:51:24.7397 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 5ae1af62-9505-4097-a69a-c1553ef7840e
X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
X-MS-Exchange-CrossTenant-userprincipalname: t90tAkYiVfegK4ot9t2QVC823p/dvRMJfi9QOOZYqKmtAs6dYFdUzLJYH8wPc7QBZCZZ0j8h20i470f9iZH8xQ==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ0PR11MB4879
X-OriginatorOrg: cisco.com
X-Outbound-SMTP-Client: 173.37.102.13, xch-rcd-003.cisco.com
X-Outbound-Node: alln-core-1.cisco.com
Archived-At: <https://mailarchive.ietf.org/arch/msg/idr/09_GGguxSxQpEk8OF4juCfb-kA4>
Subject: Re: [Idr] [bess] Type 1 RD for Pure IPv6 network -- EVPN
X-BeenThere: idr@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Inter-Domain Routing <idr.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/idr>, <mailto:idr-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/idr/>
List-Post: <mailto:idr@ietf.org>
List-Help: <mailto:idr-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/idr>, <mailto:idr-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 04 Feb 2021 05:51:31 -0000

RFC 6286 already updates RFC 4271.
Basically, RID is not unique. (ASN,RID) is unique. The only limitation on RID is that RID != 0.

Regards,
Jakob.

From: Gyan Mishra <hayabusagsm@gmail.com>
Sent: Wednesday, February 3, 2021 9:42 PM
To: Jakob Heitz (jheitz) <jheitz@cisco.com>
Cc: Muthu Arul Mozhi Perumal <muthu.arul@gmail.com>om>; TULASI RAM REDDY <tulasiramireddy@gmail.com>om>; bess@ietf.org; idr@ietf.org
Subject: Re: [Idr] [bess] Type 1 RD for Pure IPv6 network -- EVPN



On Wed, Feb 3, 2021 at 11:22 PM Jakob Heitz (jheitz) <jheitz@cisco.com<mailto:jheitz@cisco.com>> wrote:
<snip RFC4271>
   Syntactic correctness means that the BGP Identifier field represents
   a valid unicast IP host address.
</snip>

     Gyan> I do see that verbiage in section 6.2



   If the BGP Identifier field of the OPEN message is syntactically

   incorrect, then the Error Subcode MUST be set to Bad BGP Identifier.

   Syntactic correctness means that the BGP Identifier field represents

   a valid unicast IP host address.



BGP with IGP call back NH tracker checks the NH but how does BGP code validate the RIB that the router-id is a connected loopback but

and also advertised by IGP.  I have not tried it but if you set a bogus router-id would all the BGP peers go down.

I will try that in the lab.

IOS-XR does not have this check. Nothing breaks by violating this rule. IOS-XR implements RFC 6286.
I think you'll be hard pressed to find a router that checks this.
 Gyan> Agreed.  That is exactly what I thought.  I was going to try on IOS XR but you saved me some time and results as I expected.  I will try test RFC 6286 on XR.  Have you tried doing IPv6 only peers on XR and with BGP identifier set unique to 4 octet IP address and see if that works.  I am guessing it would work as XR does not have the check.

    I  am not crazy about the RFC 6286 AS wide BGP identifier with 4 octet unsigned non zero integer.  Most operators are more comfortable having unique 4 octet IP address as BGP identifier and I think would much rather do that as long as the check does not exist as even with enabling RFC 6286 and having AS wide unique identifier seems odd and scary to me as normally the BGP identifier must always be unique within the domain or breaks BGP.

dual stack edge over v6 core RFC 5565 is becoming more common for operators every day with SRv6 push and thus IPv6 only routers and running into this issue where now you have to enable RFC 6286.

I am thinking it maybe well worthwhile to write a draft that updates RFC 4271 check as vendors don’t follow it anyway and as we all know not checking is not going to break anything and making so that for IPv6 only routers such as in a SRv6 core that the BGP identifier can remain a 4 octet IP and then operators now could keep the same unique BGP identifier IP you had on the router before you ripped it out of the core when transitioned to SRv6.
Regards,
Jakob.

--

[http://ss7.vzw.com/is/image/VerizonWireless/vz-logo-email]<http://www.verizon.com/>

Gyan Mishra

Network Solutions Architect

M 301 502-1347
13101 Columbia Pike
Silver Spring, MD