From nobody Thu Aug 4 06:21:00 2022 Return-Path: X-Original-To: bier@ietfa.amsl.com Delivered-To: bier@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 8EEBAC13C21F; Thu, 4 Aug 2022 06:20:59 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -7.688 X-Spam-Level: X-Spam-Status: No, score=-7.688 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.582, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_HI=-5, RCVD_IN_ZEN_BLOCKED_OPENDNS=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01, URIBL_BLOCKED=0.001, URIBL_DBL_BLOCKED_OPENDNS=0.001, URIBL_ZEN_BLOCKED_OPENDNS=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=SZscAvTo; dkim=pass (1024-bit key) header.d=juniper.net header.b=KZD/EdUW Received: from mail.ietf.org ([50.223.129.194]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id CHreh6P3O9Fm; Thu, 4 Aug 2022 06:20:55 -0700 (PDT) Received: from mx0b-00273201.pphosted.com (mx0a-00273201.pphosted.com [208.84.65.16]) (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 4D540C13C202; Thu, 4 Aug 2022 06:20:55 -0700 (PDT) Received: from pps.filterd (m0108157.ppops.net [127.0.0.1]) by mx0a-00273201.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 2745TfWS022314; Thu, 4 Aug 2022 06:20:42 -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-transfer-encoding : mime-version; s=PPS1017; bh=OMe94GVK5TvOpKMCfo4k/WOynOomAMRmptsLuk3ObzU=; b=SZscAvTowBltMZE5bsJrwWalGSOH35YwTnH3o/Nv1BYvUFcPTMMn1P4jpycE54PGWATF Sjl8qzPs9+y8NZHE0nHPpm9ZxGNOnZM1HPMGjEIgQQGUFhXp7UdIx+a1dX+4b8eAlUJC CnPAL7SgGJXyRkCHnkSFgGhnP1RYl786pQ9mjMXJsmvk/6DU2n2vMa+csjqAPsKIgt6W NLM+gi5Egigckvlent46KV/zGns/cyHKX2p31yZDD9tbV+GOtoia43tX0g2klSJ5HV7J B/qyL+lDoJaexD9m64o4G8tBeyWCg9ZjFaizw7YRBEtJsKCLI+gKu4ED3BtiSxDVhUvL mw== Received: from na01-obe.outbound.protection.outlook.com (mail-eastusazlp17010000.outbound.protection.outlook.com [40.93.11.0]) by mx0a-00273201.pphosted.com (PPS) with ESMTPS id 3hqubh23ac-2 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 04 Aug 2022 06:20:42 -0700 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=gYw4e8Hl1l0BU8xUYT3qQRCdEmWx0bb3prVogoDBUqc339iQHHrBoHk56JPsT0TtiKpagDeC02K2AdUHZYz82MLN0cNHYbHK0/Q5AphNdOPDxyX3u4W+h+P2EQrixgcOHfLVADOgjEsG47gEPkBG9NaypFzRhs1QBh6T1RW7IaE9lyeRkhLmPI1HEZdw8ijSE6uA8rZ7SYDMgeKqs09QmnU+jpOefR+SXe7Kff+tsbOECoSM3sc/varFiT+lPdK+uqZZPaz/o8U3MK1v2OkAa0jTjgcMr2JfwMBy/GCYGTwUbuf1pmregSqsQYJnmNZkU+9GSAB774sSDaHaVeuq7Q== 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-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=OMe94GVK5TvOpKMCfo4k/WOynOomAMRmptsLuk3ObzU=; b=gbQzSFka1uo//wBx5t6BauJH4H23C03o4TLKGfH8pJ4nbkOK1FkT10jMTqtOPFOt6cp5jI1VosFaZRcv+4lAtTz/gpBDi6ZdRDUgrlqlWjGeaf8Vedi89+GGmr4rK5Zo4mUTTB//MjKtReA1WIkf+dTinbsAFGcSHJvpVw0vXualpAisxH177JLuey5N9m0/kxrhaGSmcMxdZKHlNU6qayGBf+pOnj9K14Q3wCR5lV1xgun/TTiwBssDHzn4rd0/nurHR4ZfH2LKUCacfdIxQGkzY5dHZeUiLf1ZfGQN7BfvgN/a/TA9Uq5qp0lpsoVvSALB26D/D8IiFtVbSH2LWA== 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=OMe94GVK5TvOpKMCfo4k/WOynOomAMRmptsLuk3ObzU=; b=KZD/EdUWyQRZiCjCrCeSNRBiEmbfNCdHhvRzgqlPb5yqy8Y68uxMctIL5g/m7SYa4n7sWq1N9ADY19PuB5juRk6EBho0WkxxOwilVAM9xvmX5ADYLc6IR95EwvAwOUxEAcf30aowOLKZNePvNv9lCcd8HwqgJqSqv98z+X8a32w= Received: from BL0PR05MB5652.namprd05.prod.outlook.com (2603:10b6:208:6a::19) by DM5PR05MB3228.namprd05.prod.outlook.com (2603:10b6:3:c7::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5504.14; Thu, 4 Aug 2022 13:20:38 +0000 Received: from BL0PR05MB5652.namprd05.prod.outlook.com ([fe80::7594:32f4:79c2:cc08]) by BL0PR05MB5652.namprd05.prod.outlook.com ([fe80::7594:32f4:79c2:cc08%6]) with mapi id 15.20.5504.015; Thu, 4 Aug 2022 13:20:38 +0000 From: "Jeffrey (Zhaohui) Zhang" To: Toerless Eckert , Huaimo Chen CC: "Les Ginsberg (ginsberg)" , "bier@ietf.org" Thread-Topic: [Bier] I-D Action: draft-ietf-bier-te-isis-01.txt Thread-Index: AQHYo39iMyLCz48aBkKnzw210ykYS62V1PYAgAat+ICAABJhAIACLU+Q Date: Thu, 4 Aug 2022 13:20:38 +0000 Message-ID: References: <165912199957.33573.9414915331218147964@ietfa.amsl.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: msip_labels: MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_Enabled=true; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_SetDate=2022-08-04T13:20:36Z; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_Method=Standard; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_Name=0633b888-ae0d-4341-a75f-06e04137d755; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_SiteId=bea78b3c-4cdb-4130-854a-1d193232e5f4; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_ActionId=740ad390-a405-40d8-8566-159d7a8c43ef; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_ContentBits=2 x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: f05468c8-5dcf-42f5-6a9e-08da761c1f51 x-ms-traffictypediagnostic: DM5PR05MB3228:EE_ x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 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 x-forefront-antispam-report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:BL0PR05MB5652.namprd05.prod.outlook.com; PTR:; CAT:NONE; SFS:(13230016)(4636009)(376002)(136003)(366004)(346002)(396003)(39860400002)(110136005)(33656002)(4326008)(2906002)(55016003)(8676002)(66574015)(30864003)(66946007)(38070700005)(66446008)(5660300002)(52536014)(54906003)(66476007)(64756008)(66556008)(76116006)(86362001)(26005)(38100700002)(122000001)(83380400001)(45080400002)(71200400001)(9686003)(316002)(478600001)(8936002)(41300700001)(7696005)(6506007)(966005)(186003)(53546011); DIR:OUT; SFP:1102; x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: =?us-ascii?Q?aSi4eXcdqyxcKzya/fE4qDx0lYYO+7x06lp8qlyJAvXxQS04frXH4/J61t/A?= =?us-ascii?Q?CurnyPz0U4d6q8hBEfuRV0KkKPx/wG3XXpxhyFnM3diZPu3aPf8giyulo5vW?= =?us-ascii?Q?XZ7NQjhfNKpR7UIA5XfRFqLTZHFXxCAb1V4F5nQ8+NRfInSfqNL5rShDFvZR?= =?us-ascii?Q?Tl8DvWRKcnko0b4LW9pS2HV9W1oWnYIJbTvNQ+JVJ3drtWSH7jzC8D7fDQwX?= =?us-ascii?Q?zaHss/wAMrJGUc1WGA4jDqEYlsDI0kDAwSkX4nj2yGW2St+jVf7Zuo5HNciO?= =?us-ascii?Q?AL8KU9s+aTNHmooQmHCqfyiTTdzoUCa5klMMbWnS/SkV6EP5DxCYWyUn3ChM?= =?us-ascii?Q?mj4fyomC5Mn5b3IV8UnFwGJr2sVXT5Kh7sbYmdx0N/DtlzZdK2vizVx/t1rY?= =?us-ascii?Q?3/yezzjojbruvaOPOf8RjUBicriMQs3dkQbpw8AjPukV8OK1wLsnUfUHwt7e?= =?us-ascii?Q?7vPnkT8mnz9+UTozXlKwYSCRbUqzEcReXCAFsQZASr8DYeT22WtWce8qG6fv?= =?us-ascii?Q?olCo3owseM5U+EQrvKbTwXyqP9hlefnwQHOiXmal70dXScRO9yUUEg3Tk9vj?= =?us-ascii?Q?wPw+WfAKBaYPemEBR8wYHRsd5htiWRw/LcfHY3sw1Y4Pp5LDYLgRtgj1lfpk?= =?us-ascii?Q?OtxBOmhZ+URWldamPihYzstumqiUD4LyZfz8Unt4JV1N5dpUrI+BTcfJIYbU?= =?us-ascii?Q?6PciuMH6+BLzStYxvLBwKLJ34PzP5UiTorPuCdVJM9bBNPdzC3ZcOaDV7Baa?= =?us-ascii?Q?qZQsNPH0K0g4AZpjEiOhg2tqXCHDZsheQ+3cxpD8EfLF9y+xn5dzit4m9AZS?= =?us-ascii?Q?Moh6VAvKqM5BE+gOgbY6ozfeUBI+i/1Hoe1c/2rF76nSJ/U6xZricN63pL7c?= =?us-ascii?Q?BdJkfsZNsE8eRe+R62QGg4mvCcONNfmYIHwnCWWvmwmjp5ylwJ0LkHmxHiRl?= =?us-ascii?Q?xejdeYV8xYJtiM9o/Cs0Z7J0VYdlEUee0sz6dzW2Trz5SCLaUw6Yn+avmvsS?= =?us-ascii?Q?nB3TR4Ed04NyesaOmGOviZICC2mr7I6qfyUekfMocbglNLb2fBFopdIWIzat?= =?us-ascii?Q?cc7Zs2vVkXWZuEcLY4UoboV1hC4eSuKPsV50gnFAXQZFp7zqxztyarcUQmD1?= =?us-ascii?Q?I/axYrwsYlpqEuTtb7rG3mytG5wk1jklUI6UKN0vBBccabONZr2o4avCfSlJ?= =?us-ascii?Q?gOjUqEV8lr2GpdfrqMlIO1On8pcf8fKQRIsDi5vU6FYv9Fb4yCUq2zAbDmmk?= =?us-ascii?Q?DicnzySp1aQcm6etfkOFfRTOdIvIjYIjq3D5b06CnH4nlckg4DfOaeuga/2C?= =?us-ascii?Q?lh2EXnVU0PnyclXlgUIR/ftuCu0OAuExr59MXIHokxa2yVlnOfrBNE+fZxEa?= =?us-ascii?Q?2938KOAZHkV3HhNx9mEhR2GrJq2Pk5XWlpOWvvAR/+BNQ3CVay5VLpTy4X0X?= =?us-ascii?Q?LgRVmh7GG/kT/kaMaJwa4INu0vENPwkjkzVR3m67aqceETqvUQ/+RT4X4/9+?= =?us-ascii?Q?6Zpitxpf4c/iEtg9GSE5QwDWKdnWayKTKhKIGU73IkIgz6N26CyXasf12iBF?= =?us-ascii?Q?MQHe331rg2EM+xDWcd+/l1sBcZBMwGTfPe9keuN5?= Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: juniper.net X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: BL0PR05MB5652.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: f05468c8-5dcf-42f5-6a9e-08da761c1f51 X-MS-Exchange-CrossTenant-originalarrivaltime: 04 Aug 2022 13:20:38.2312 (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: tK6fnMHvch+pGuoQxfb9Vc1s0vT45l2ht9JgxwigyNK0w37Vhl+UtA4k+2G3Nl61lXumGi+tsuGk894r88xhRg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR05MB3228 X-Proofpoint-GUID: tBAA7qoCqZdf93ko4jb0YPbLDpZdJc-X X-Proofpoint-ORIG-GUID: tBAA7qoCqZdf93ko4jb0YPbLDpZdJc-X X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.883,Hydra:6.0.517,FMLib:17.11.122.1 definitions=2022-08-04_03,2022-08-04_02,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_spam_notspam policy=outbound_spam score=0 phishscore=0 adultscore=0 priorityscore=1501 spamscore=0 lowpriorityscore=0 clxscore=1011 impostorscore=0 malwarescore=0 bulkscore=0 mlxscore=0 mlxlogscore=999 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2206140000 definitions=main-2208040060 Archived-At: Subject: Re: [Bier] I-D Action: draft-ietf-bier-te-isis-01.txt X-BeenThere: bier@ietf.org X-Mailman-Version: 2.1.39 Precedence: list List-Id: "\"Bit Indexed Explicit Replication discussion list\"" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 04 Aug 2022 13:20:59 -0000 Hi Toerless, I think you're getting to some points that raised in this thread: https://m= ailarchive.ietf.org/arch/msg/bier/EC2MQR3XytQbe2D79KMBeP1v2x8/. Either way, would like to hear your thoughts. I will also reply to Huaimo's response to my original email. Jeffrey Juniper Business Use Only -----Original Message----- From: BIER On Behalf Of Toerless Eckert Sent: Wednesday, August 3, 2022 12:05 AM To: Huaimo Chen Cc: Les Ginsberg (ginsberg) ; bier@i= etf.org Subject: Re: [Bier] I-D Action: draft-ietf-bier-te-isis-01.txt [External Email. Be cautious of content] Hey folks I am trying to wrap my head around how one would use these IS-IS extensions= for BIER-TE, and what if any of such semantic information might help the d= ocument... The way i assume this extension to be used is that some poor system/operato= r assigns BIER-TE bits and configures the actual BIER-TE BIFT entries with = forward_connected entries to the neighbors. Similarily to how the same poor= system/operator would configure interface IP addresses on routers. This IS= -IS work does not help to eliminate any of this initial provisioning. [Yes/= No] The way the IS-IS kicks in is to disseminate the information from those for= ward_connected BIER-TE BIFT entries across the domain, so that for example = ingres-PE could calculate BIER-TE paths through the topology. [Yes/No]. If i am on the right track, then let me continue: The first detail is that these IS-IS entries will seemingly have some eleme= nts from rfc5303 that identify the interface and/or neighbor. So those need= to match what would be found in the BIFT. I am not sure if it is obvious t= o every implementer how to achieve that without additional guidance. For ex= ample i guess we ALSO need to have the IS-IS signaling for the label ranges= for the SD/SI in BIER. Have we checked thart we simply should/can use them= also for the SD that we use for BIER-TE ? I hope so, but i can not remembe= r the discussion. Likewise for BIER-TE over L2 (not MPLS), we have the dependency against pic= king one particular bift-id encoding, and the "i don't know which" signalin= g we may have to support it (could of course be all manual configured). Yes, this is just dependencies to make a deployment work, not necessarily s= omething an IGP specialist wants to see in an IGP draft/RFC, but i hope we = can have this more holistic discussion here ;-) So, then RFC5305 has all those wonderful adjacency parameters to help for e= xample ingres PE CSPF calculations. And i remember those from RSVP-TE days= . But now the ISIS draft proposal introduces the BAR/IPA parameters, and i = have never seen those being mentioned or used in conjunction with TE in gen= eral or CSPF specifically. So it would be great to have at least one exampl= e of how to use PAR/IPA be explained here. If we can not construct such exa= mples, then BIER/IPA may be leftovers from the IS-IS encodings for BIER, wh= ere of course there is no CSPF and the like... Next question: Would it be possible to express with these IS-IS option the = forward_routed() I think it would be great if we would build the IS-IS exte= nsions such that that is possible, because forward_routed entries can be a = great help to get along with the available bits. I also would need to get my head around those IS-IS pseudonodes... if anyon= e has an example, that would be great. Thanks so much! Toerless On Wed, Aug 03, 2022 at 02:58:53AM +0000, Huaimo Chen wrote: > Hi Les, > > Thank you very much for your valuable comments. > I have addressed them in the updated draft (uploaded). > My responses are also inline below with [HC]. > > Best Regards, > Huaimo > -----Original Message----- > From: BIER On Behalf Of Les Ginsberg=20 > (ginsberg) > Sent: Friday, July 29, 2022 4:59 PM > To: bier@ietf.org > Subject: Re: [Bier] I-D Action: draft-ietf-bier-te-isis-01.txt > > Some pedantic comments on this draft: > > For the new BIER-TE sub-TLV: > > 1)The relevant registry has been renamed to be "IS-IS Sub-TLVs for TLVs A= dvertising Neighbor Information". Please use this new name. > https://urldefense.com/v3/__https://nam11.safelinks.protection.outlook > .com/?url=3Dhttps*3A*2F*2Fwww.iana.org*2Fassignments*2Fisis-tlv-codepoin > ts*2Fisis-tlv-codepoints.xhtml*23isis-tlv-codepoints-advertising-neigh > bor-information&data=3D05*7C01*7Chuaimo.chen*40futurewei.com*7C5bbd3 > 8c256024261ea5608da71a546c0*7C0fee8ff2a3b240189c753a1d5591fedc*7C1*7C0 > *7C637947251926210034*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQ > IjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C&sdata=3Dy > bC6zOJkG1sRe*2FQosV23MElysXHkg7jnHS70N*2Bf7bpE*3D&reserved=3D0__;JSU > lJSUlJSUlJSUlJSUlJSUlJSUlJSUlJQ!!NEt6yMaO-gk!G5bTVqJn5ZtmmsY1EbEzHis0B > GyAF1uqzU0ttuFyUVVQodhaDOYWjyj0bBWSvpCDZAHsLb0c1cTdEQ$ > [HC]: I have renamed it as you suggested. > > 2)Please do NOT insert padding to keep content aligned on a 4 byte bounda= ry. This may be useful for OSPF, but it is not for IS-IS as TLVs are NOT al= igned inside an LSP. All you are doing is wasting space - which is precious= in IS-IS given the limited LSP space. > [HC]: Removed padding. > > 3)You say in Section 2: > > "Note that if each of BitPosition > and DrEndBitPosition uses more than 2 octets, we use 4 or more octets > for each of them." > > I do not see how the receiver of the sub-TLV could tell whether the 2 oct= et or 4 octet encoding was sent as you have nothing that specifies the leng= th of these fields. > You can't use the total length of the sub-TLV as it could include optiona= l sub-sub-TLVs. > > ?? > [HC]: Deleted the quoted text. > > 4)In IANA section, I do not know why you specified "N" for TLVs 23 and 22= 3. > While RFC 5311 (which defines these TLVs) is not popular, if there was an= implementation, I see no reason why it should be invalid to send the BIER-= TE info in these TLVs. > [HC]: Changed "n" to "y" for TLVs 23 and 223. > > Thanx. > > Les > > > > -----Original Message----- > > From: BIER On Behalf Of=20 > > internet-drafts@ietf.org > > Sent: Friday, July 29, 2022 12:13 PM > > To: i-d-announce@ietf.org > > Cc: bier@ietf.org > > Subject: [Bier] I-D Action: draft-ietf-bier-te-isis-01.txt > > > > > > A New Internet-Draft is available from the on-line Internet-Drafts dire= ctories. > > This draft is a work item of the Bit Indexed Explicit Replication WG of= the IETF. > > > > Title : IS-IS Extensions for BIER-TE > > Authors : Huaimo Chen > > Mike McBride > > Aijun Wang > > Gyan S. Mishra > > Yanhe Fan > > Lei Liu > > Xufeng Liu > > Filename : draft-ietf-bier-te-isis-01.txt > > Pages : 7 > > Date : 2022-07-29 > > > > Abstract: > > This document describes IS-IS extensions for distributing > > BitPositions configured on the links in "Bit Index Explicit > > Replication Traffic Engineering" (BIER-TE) domain. > > > > > > > > The IETF datatracker status page for this draft is: > > https://urldefense.com/v3/__https://nam11.safelinks.protection.outlo > > ok.com/?url=3Dhttps*3A*2F*2Fdatatracker.ietf.org*2Fdoc*2Fdraft-ietf-bi > > er-te-isis*2F&data=3D05*7C01*7Chuaimo.chen*40futurewei.com*7C5bbd3 > > 8c256024261ea5608da71a546c0*7C0fee8ff2a3b240189c753a1d5591fedc*7C1*7 > > C0*7C637947251926210034*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAi > > LCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C&s > > data=3D99ojCa2m*2BTeMk0OfxeifsmVrhvNaK7jQJp0fu0syRN8*3D&reserved=3D= 0 > > __;JSUlJSUlJSUlJSUlJSUlJSUlJSUlJSU!!NEt6yMaO-gk!G5bTVqJn5ZtmmsY1EbEz > > His0BGyAF1uqzU0ttuFyUVVQodhaDOYWjyj0bBWSvpCDZAHsLb2q-YAriw$ > > > > There is also an htmlized version available at: > > https://urldefense.com/v3/__https://nam11.safelinks.protection.outlo > > ok.com/?url=3Dhttps*3A*2F*2Fdatatracker.ietf.org*2Fdoc*2Fhtml*2Fdraft- > > ietf-bier-te-isis-01&data=3D05*7C01*7Chuaimo.chen*40futurewei.com* > > 7C5bbd38c256024261ea5608da71a546c0*7C0fee8ff2a3b240189c753a1d5591fed > > c*7C1*7C0*7C637947251926210034*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wL > > jAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7 > > C&sdata=3D*2F8qaH0ZvQBAfGM4WIre0jpcI6As7wjXjdqbxOfdGHxo*3D&res > > erved=3D0__;JSUlJSUlJSUlJSUlJSUlJSUlJSUlJSU!!NEt6yMaO-gk!G5bTVqJn5Ztmm > > sY1EbEzHis0BGyAF1uqzU0ttuFyUVVQodhaDOYWjyj0bBWSvpCDZAHsLb0ZiA93Zg$ > > > > A diff from the previous version is available at: > > https://urldefense.com/v3/__https://nam11.safelinks.protection.outlo > > ok.com/?url=3Dhttps*3A*2F*2Fwww.ietf.org*2Frfcdiff*3Furl2*3Ddraft-ietf > > -bier-te-isis-01&data=3D05*7C01*7Chuaimo.chen*40futurewei.com*7C5b > > bd38c256024261ea5608da71a546c0*7C0fee8ff2a3b240189c753a1d5591fedc*7C > > 1*7C0*7C637947251926210034*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwM > > DAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C&am > > p;sdata=3DL77o0dGWGuSwL9vSm1Durc56Fl5zONoDq*2F8ij12v9lc*3D&reserve > > d=3D0__;JSUlJSUlJSUlJSUlJSUlJSUlJSUlJSU!!NEt6yMaO-gk!G5bTVqJn5ZtmmsY1E > > bEzHis0BGyAF1uqzU0ttuFyUVVQodhaDOYWjyj0bBWSvpCDZAHsLb1A8MmKRQ$ > > > > > > Internet-Drafts are also available by rsync at=20 > > rsync.ietf.org::internet-drafts > > > > > > _______________________________________________ > > BIER mailing list > > BIER@ietf.org > > https://urldefense.com/v3/__https://nam11.safelinks.protection.outlo > > ok.com/?url=3Dhttps*3A*2F*2Fwww.ietf.org*2Fmailman*2Flistinfo*2Fbier&a > > mp;data=3D05*7C01*7Chuaimo.chen*40futurewei.com*7C5bbd38c256024261ea56 > > 08da71a546c0*7C0fee8ff2a3b240189c753a1d5591fedc*7C1*7C0*7C6379472519 > > 26210034*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzI > > iLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C&sdata=3Dem5K2lvVvX > > wkSlye1egSX*2BgtdfeqDArSsAycQJTPArI*3D&reserved=3D0__;JSUlJSUlJSUl > > JSUlJSUlJSUlJSUlJSU!!NEt6yMaO-gk!G5bTVqJn5ZtmmsY1EbEzHis0BGyAF1uqzU0 > > ttuFyUVVQodhaDOYWjyj0bBWSvpCDZAHsLb0RkPZk1w$ > > _______________________________________________ > BIER mailing list > BIER@ietf.org > https://urldefense.com/v3/__https://nam11.safelinks.protection.outlook > .com/?url=3Dhttps*3A*2F*2Fwww.ietf.org*2Fmailman*2Flistinfo*2Fbier&d > ata=3D05*7C01*7Chuaimo.chen*40futurewei.com*7C5bbd38c256024261ea5608da71 > a546c0*7C0fee8ff2a3b240189c753a1d5591fedc*7C1*7C0*7C637947251926210034 > *7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6I > k1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C&sdata=3Dem5K2lvVvXwkSlye1egSX* > 2BgtdfeqDArSsAycQJTPArI*3D&reserved=3D0__;JSUlJSUlJSUlJSUlJSUlJSUlJS > UlJSU!!NEt6yMaO-gk!G5bTVqJn5ZtmmsY1EbEzHis0BGyAF1uqzU0ttuFyUVVQodhaDOY > Wjyj0bBWSvpCDZAHsLb0RkPZk1w$ > -- --- tte@cs.fau.de _______________________________________________ BIER mailing list BIER@ietf.org https://urldefense.com/v3/__https://www.ietf.org/mailman/listinfo/bier__;!!= NEt6yMaO-gk!G5bTVqJn5ZtmmsY1EbEzHis0BGyAF1uqzU0ttuFyUVVQodhaDOYWjyj0bBWSvpC= DZAHsLb1C2tL2gA$