Re: [Idr] AD Review of draft-ietf-idr-tunnel-encaps-15

John Scudder <jgs@juniper.net> Fri, 01 May 2020 21:11 UTC

Return-Path: <jgs@juniper.net>
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 556E73A1CC2; Fri, 1 May 2020 14:11:30 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.1
X-Spam-Level:
X-Spam-Status: No, score=-2.1 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=juniper.net header.b=ankv9ZTj; dkim=pass (1024-bit key) header.d=juniper.net header.b=HWrGNTLS
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 btxDos4QCG8q; Fri, 1 May 2020 14:11:28 -0700 (PDT)
Received: from mx0b-00273201.pphosted.com (mx0b-00273201.pphosted.com [67.231.152.164]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 43D853A1CC1; Fri, 1 May 2020 14:11:28 -0700 (PDT)
Received: from pps.filterd (m0108163.ppops.net [127.0.0.1]) by mx0b-00273201.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 041L8IQc024939; Fri, 1 May 2020 14:11:26 -0700
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=juniper.net; h=from : to : cc : subject : date : message-id : references : in-reply-to : content-type : content-id : content-transfer-encoding : mime-version; s=PPS1017; bh=NCodUfCkridOIIWYhqaCr8UTQYjzfvksH6pnYZZDzKM=; b=ankv9ZTjKvr5tzEEf1v9dW6/eSUhcunygE/+7QR4FqswtjKULQ+92gsSKlWtZ7EJknJq a/HUGjd5ONUujzQGOK/F2I/ZzQxSvjXuBJEOEX/jAdQm0WD2nm/kK3OsykojfmVvu1OC DFPv+n0eMtCAgQhaSa65+Zt8gyAITnqjFVVLVnjMIG8qQXBRT/YpeRd6o5ll1oEQrG4f ehOEi2kvQJ/PsY9k4vCXDAR8mEMFFOsGQVeWIzbwgur/9sThK0MNWdYJ4V+/VxIYWj7Z 3Vz3r8L4bLv7eCKgBrQ+pTQaYDbjl8qFQIYkHPw4hk/St4Ke9/Ad+MsRojXItaIzHtrR 8Q==
Received: from nam10-dm6-obe.outbound.protection.outlook.com (mail-dm6nam10lp2107.outbound.protection.outlook.com [104.47.58.107]) by mx0b-00273201.pphosted.com with ESMTP id 30r7m41ua7-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 01 May 2020 14:11:26 -0700
ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=dVmw6sU3KI/XSGYfkpWg8BJ+M0FI0R9ABe6/v4gbBkXMTObAqrJRatrwC1zSz01oHvQR8z7hZiMEZJ7I9zgRXEo5BeHcMgqe3T9ZrFEAxpFo7KBp6Yd0+gPIvhNgYySjP9VFVU18KOduoxKc4oKCENGFw78dJzTYLTI5fHACvfAsmaYj/DOBlEfUaamEhZcA2uSQAVELASNvYobF7ypWsyCElKQxuwGF7Rww5ebHFL+6bQJUqKjHF1Vvb+pgQRLuyU+VGDqHPCpkLnP6M6crZrJQmRBRdZzvyba5ZoaTnPF1zHyS6pFLzM5sAk495eQho10QcXrqfYtPQKVy5ABZAQ==
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=NCodUfCkridOIIWYhqaCr8UTQYjzfvksH6pnYZZDzKM=; b=CLuM6ENWcghW8t1uTNZrlbx6XyTY10sn/G2HK4cp9k0ZEt9LXc2n10piFXc0ytZ20qwUhefFoOLZXAQ2yPDZEclKyGLqzX8OSu5t19qVV4vWIY0xl3jFpKGXTBje7207fpXZa/x73ESs1qXGUr8gxiuItPH0h2V0sIcNig1fhwtRO5ciehpWI/m178l2nBgpCPxvBOpZNz+2+L2w49y1bzVOa08Nf1/FYPPMoFyqzvqZTbP1zt2bJwo4i7Bp7N41OLdf/riu3hSRlkuIZ9j2WUGLw+/YxT/9BlcpWCef5veEPR+02GG2UzeJDPQA00jBMRUwyAPAEAECMCQ98zapOg==
ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=juniper.net; dmarc=pass action=none header.from=juniper.net; dkim=pass header.d=juniper.net; arc=none
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=juniper.net; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=NCodUfCkridOIIWYhqaCr8UTQYjzfvksH6pnYZZDzKM=; b=HWrGNTLSsaB9z+l4i3xhwNtcKQ4scoLEECNrp2bdcW7hsW4wWVR2LCNAx7RN4BpJ3B9C8wORmbTZOWus7ohVU5w/OGIE50iYCeyIKA9LakDEuOPn22MDrL5eB6QWg/PeguR53xmLSF9ECwMjY5dYFbXJBWbozXZWKkgALXa0iFU=
Received: from BL0PR05MB5076.namprd05.prod.outlook.com (2603:10b6:208:83::12) by BL0PR05MB4882.namprd05.prod.outlook.com (2603:10b6:208:2a::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2958.7; Fri, 1 May 2020 21:11:24 +0000
Received: from BL0PR05MB5076.namprd05.prod.outlook.com ([fe80::d450:6f4c:4c28:b45f]) by BL0PR05MB5076.namprd05.prod.outlook.com ([fe80::d450:6f4c:4c28:b45f%7]) with mapi id 15.20.2958.027; Fri, 1 May 2020 21:11:24 +0000
From: John Scudder <jgs@juniper.net>
To: Alvaro Retana <aretana.ietf@gmail.com>
CC: "draft-ietf-idr-tunnel-encaps@ietf.org" <draft-ietf-idr-tunnel-encaps@ietf.org>, "idr-chairs@ietf.org" <idr-chairs@ietf.org>, "idr@ietf. org" <idr@ietf.org>
Thread-Topic: AD Review of draft-ietf-idr-tunnel-encaps-15
Thread-Index: AQHV6LURgETtNTA88kySyYPq0YikO6iUJ3oAgAABPoA=
Date: Fri, 1 May 2020 21:11:24 +0000
Message-ID: <C27A293F-B06E-423A-96B5-0FF40450BCE5@juniper.net>
References: <CAMMESsw09LGWWhqyJ_0=jRimUN+_UuCjaXHCdqF9zkpaxSQgVQ@mail.gmail.com> <8DEDED80-9BE4-415B-8EC2-04CFE2E5103D@juniper.net>
In-Reply-To: <8DEDED80-9BE4-415B-8EC2-04CFE2E5103D@juniper.net>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
x-mailer: Apple Mail (2.3608.80.23.2.2)
authentication-results: gmail.com; dkim=none (message not signed) header.d=none;gmail.com; dmarc=none action=none header.from=juniper.net;
x-originating-ip: [66.129.241.12]
x-ms-publictraffictype: Email
x-ms-office365-filtering-ht: Tenant
x-ms-office365-filtering-correlation-id: 10b90525-4617-4d9b-3f1a-08d7ee14346b
x-ms-traffictypediagnostic: BL0PR05MB4882:
x-microsoft-antispam-prvs: <BL0PR05MB4882294D97B383AB8D962B5AAAAB0@BL0PR05MB4882.namprd05.prod.outlook.com>
x-ms-oob-tlc-oobclassifiers: OLM:8273;
x-forefront-prvs: 0390DB4BDA
x-ms-exchange-senderadcheck: 1
x-microsoft-antispam: BCL:0;
x-microsoft-antispam-message-info: sd5XIzROVMVDcIZar/7I381CyHW9ig/tY4gp2Ixb2gSdkETfiCXShxhEMOtrtt+UqH1jHdxhsFhNaA7yt7LDLphWzJynBqdmK5mBn/49JA/ni4fZhxc/leNDDaaD3ZhZ/QdIETIcQrzIHDoMbxNGW/FLdTqR2aPuBA8R/STZn4r3flnEJDNL7ej1ohNCXxN+oS3igSv3r4MBtSVfRyDoFb2+YEhLnFwoefkAk3KKkTOrGWkEgMEAD2dGBAGjS28rYtgcwESojq7dnoL1ZdGqCgQW1e6z5ftSNNHX+qIanGmQiKa+YEBlhGUFxaIY2qty5SdCaNkSqwVFOIHlAeI2w8/AfR+4ekEGWtQE5LvBxg/qn9gwzmG2pujhugTEHZb/UWpIOnDFppRG6w/PSAOa+5YS+RytKQyPjOlD0iKen43iNg2U2RLrTRhzxvS6Us3t
x-forefront-antispam-report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:BL0PR05MB5076.namprd05.prod.outlook.com; PTR:; CAT:NONE; SFTY:; SFS:(4636009)(396003)(136003)(346002)(366004)(39860400002)(376002)(71200400001)(54906003)(6512007)(33656002)(8936002)(316002)(8676002)(186003)(66946007)(4326008)(6506007)(26005)(66476007)(64756008)(66556008)(66446008)(6916009)(36756003)(76116006)(2906002)(6486002)(2616005)(86362001)(478600001)(4744005)(5660300002); DIR:OUT; SFP:1102;
x-ms-exchange-antispam-messagedata: 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
x-ms-exchange-transport-forked: True
Content-Type: text/plain; charset="utf-8"
Content-ID: <833C8C8D5099F944AB5129281833110E@namprd05.prod.outlook.com>
Content-Transfer-Encoding: base64
MIME-Version: 1.0
X-OriginatorOrg: juniper.net
X-MS-Exchange-CrossTenant-Network-Message-Id: 10b90525-4617-4d9b-3f1a-08d7ee14346b
X-MS-Exchange-CrossTenant-originalarrivaltime: 01 May 2020 21:11:24.0475 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: bea78b3c-4cdb-4130-854a-1d193232e5f4
X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
X-MS-Exchange-CrossTenant-userprincipalname: xXdoH9cJ2EuSjKWHob9dAx6GppQnxBo4SXKT69LxiptLTa7Y1SBB7WovdLEszDsp
X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL0PR05MB4882
X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.676 definitions=2020-05-01_15:2020-05-01, 2020-05-01 signatures=0
X-Proofpoint-Spam-Details: rule=outbound_spam_notspam policy=outbound_spam score=0 bulkscore=0 mlxscore=0 adultscore=0 clxscore=1015 malwarescore=0 priorityscore=1501 lowpriorityscore=0 spamscore=0 impostorscore=0 phishscore=0 mlxlogscore=581 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2005010150
Archived-At: <https://mailarchive.ietf.org/arch/msg/idr/dMNYhtVt4zJpZ-e_CKJZUpPUWww>
Subject: Re: [Idr] AD Review of draft-ietf-idr-tunnel-encaps-15
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: Fri, 01 May 2020 21:11:31 -0000

Whoops, this

> [major] Does this text from rfc5512 apply?
> 
>    When the TLV is being processed by a BGP speaker that will be
>    performing encapsulation, any unknown sub-TLVs MUST be ignored and
>    skipped.  However, if the TLV is understood, the entire TLV MUST
>    NOT be ignored just because it contains an unknown sub-TLV.

is covered by section 11 as well:

   If a TLV of a Tunnel Encapsulation attribute contains a sub-TLV that
   is not recognized by a particular BGP speaker, the BGP speaker MUST
   process that TLV as if the unrecognized sub-TLV had not been present.

Section 11 goes into a lot more detail on sub-TLV handling besides.

—John