IETF Logo Mail Archive

[Idr] Queries on draft https://datatracker.ietf.org/doc/html/draft-ietf-idr-te-lsp-distribution-17

Abhishek Chakraborty <cabhi@juniper.net> Thu, 28 July 2022 10:03 UTC

Return-Path: <cabhi@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 2D012C13C23F for <idr@ietfa.amsl.com>; Thu, 28 Jul 2022 03:03:55 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -3.39
X-Spam-Level:
X-Spam-Status: No, score=-3.39 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, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01, 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=Nx/AArXr; dkim=pass (1024-bit key) header.d=juniper.net header.b=P/O1s7gW
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 TiJE56ghus3Q for <idr@ietfa.amsl.com>; Thu, 28 Jul 2022 03:03:50 -0700 (PDT)
Received: from mx0a-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 10FE9C14F72C for <idr@ietf.org>; Thu, 28 Jul 2022 03:03:46 -0700 (PDT)
Received: from pps.filterd (m0108159.ppops.net [127.0.0.1]) by mx0a-00273201.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 26S8X2pC028622; Thu, 28 Jul 2022 03:03:35 -0700
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=juniper.net; h=from : to : cc : subject : date : message-id : content-type : mime-version; s=PPS1017; bh=F9X83NoO+G3kMp1tR9UfllbJS3UnzuJvG8H9SKIGHW8=; b=Nx/AArXrNiTGzWaYlQnCzm0YCQr1xjgj7fhhLxK/kvnn88zWBey9DT4pzJua3m5Ng07V SZttZUWb8Lysloj6KYWmldZFsB/VJBCsNm+q/y+EVjRI1ZCsXqIhIJ7pJuaucqSUKoOF Konuj+FQkXxs1FhD07yKNRQIf9dmfKYgGB15pYQKzH3w7B8VbRrncwl9IuD7a2Ie21j2 DxcURmlLwc6kQD6S/0lUh3A0yVtvEtKAgslATFC1UIf6hSWisQjxFxq4vD67+dNYHLym dDRZyTN7Oc1MWmWdlBbHo8el7S2Bv7QskrfCLxvqLrAg+5/QWjgJdNCHoSHflaW8BCxd aA==
Received: from nam12-dm6-obe.outbound.protection.outlook.com (mail-dm6nam12lp2169.outbound.protection.outlook.com [104.47.59.169]) by mx0a-00273201.pphosted.com (PPS) with ESMTPS id 3hkq1tg4v5-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 28 Jul 2022 03:03:35 -0700
ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=X3cugng4+ATyvMTzhWuBZMNbyTlNcgX6Aeq3rucsweqXZZXGfcrp5uTO2VeCMRS1++bL0emMGqsS5InrnxwAL/GPm4bC85MgBl7Nt26KOn4gbXHY4H/YO2gRshx4vyLuPox66ijtK5NdE9IWwp50IAn5WH5dAJAkjld2lpPv04tZXaSsZAWLRX5quqFVZYsGPKcSl0a9QsjRUYeTjzYY6WpaVLC22u15m2+gIdL2ELCp3C3uSBmTauy9Yl1kzKF7V0tvWF5RwFPUfPlKtzXFB8Na9g6UbGqaGONESrK6uBzRhuz7MFCEFRy/c3esMilX0pL00SCBYyaUVVY6fqADQw==
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=F9X83NoO+G3kMp1tR9UfllbJS3UnzuJvG8H9SKIGHW8=; b=nqy+q5/KSFDxxV1fwp01uhNpTkFGk/YdRBzsDvd6TuJV66JcJ1xv+V9AP0R+cTTFW2x916oNa3lHOVwCaQb17PMpOcMlGvaA2Y6TiLANK9qNPenl+V1Vz2ZKXmaESxBB02fumyRizpX0whJXWoIFwwH+7E7igXrxky1PgV83G/cocyQpIp+H7QdWCWRPN7xrEmTtltMunuqnJSmkfyi4UAd9v8USZz6j2q13DQ7D4sPPKGyIZNYVhty/3NtXONLZSGxY9dO46CnjzpPxPOVqh3Cu4r0FOSk8n9Y+Q0cW8UJX+FCnlrZqGirMJ26rMHOHt7zKzg5HmRW753AWleRPwg==
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=F9X83NoO+G3kMp1tR9UfllbJS3UnzuJvG8H9SKIGHW8=; b=P/O1s7gWbnMflA4VC2YcE5zKEckkSf0cJEV8GGVXplLEI0W/U/K0+FE73D+6/DGkpUmREhlqzBIAv1NylaZYbYbqxDLAu3rCH+FcXU0AxXALgIf/SvLPtCBa9iTsehsZuPz71vVJOvZtHPzDTm2iX0xENgW8gvtSetfz4K+3V1A=
Received: from PH0PR05MB8735.namprd05.prod.outlook.com (2603:10b6:510:b3::9) by MWHPR0501MB3788.namprd05.prod.outlook.com (2603:10b6:301:79::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5482.1; Thu, 28 Jul 2022 10:03:33 +0000
Received: from PH0PR05MB8735.namprd05.prod.outlook.com ([fe80::8fd:2f1e:5d6:ddec]) by PH0PR05MB8735.namprd05.prod.outlook.com ([fe80::8fd:2f1e:5d6:ddec%3]) with mapi id 15.20.5482.011; Thu, 28 Jul 2022 10:03:32 +0000
From: Abhishek Chakraborty <cabhi@juniper.net>
To: "idr@ietf.org" <idr@ietf.org>
CC: "ketant.ietf@gmail.com" <ketant.ietf@gmail.com>, "jie.dong@huawei.com" <jie.dong@huawei.com>, "stefano@previdi.net" <stefano@previdi.net>, "mach.chen@huawei.com" <mach.chen@huawei.com>, "hannes@rtbrick.com" <hannes@rtbrick.com>, "jefftant.ietf@gmail.com" <jefftant.ietf@gmail.com>
Thread-Topic: Queries on draft https://datatracker.ietf.org/doc/html/draft-ietf-idr-te-lsp-distribution-17
Thread-Index: AdiiZcEmUh1NqLZ0SiS4mkKkwo3rxw==
Date: Thu, 28 Jul 2022 10:03:32 +0000
Message-ID: <PH0PR05MB873537FF945A3251B0566F13B5969@PH0PR05MB8735.namprd05.prod.outlook.com>
Accept-Language: en-IN, 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=2022-07-28T10:03:30Z; 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=284be6c7-4008-4dae-9c0e-2d784f24d3d5; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_ContentBits=2
x-ms-publictraffictype: Email
x-ms-office365-filtering-correlation-id: 036f2be6-b558-4435-2709-08da70806df4
x-ms-traffictypediagnostic: MWHPR0501MB3788: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:PH0PR05MB8735.namprd05.prod.outlook.com; PTR:; CAT:NONE; SFS:(13230016)(4636009)(396003)(136003)(39860400002)(366004)(376002)(346002)(86362001)(6916009)(33656002)(55016003)(166002)(66446008)(64756008)(76116006)(71200400001)(186003)(66476007)(54906003)(8676002)(52536014)(8936002)(316002)(966005)(66946007)(2906002)(41300700001)(6506007)(66556008)(7696005)(122000001)(66574015)(38100700002)(9686003)(38070700005)(478600001)(5660300002)(4326008); DIR:OUT; SFP:1102;
x-ms-exchange-antispam-messagedata-chunkcount: 1
x-ms-exchange-antispam-messagedata-0: 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
Content-Type: multipart/alternative; boundary="_000_PH0PR05MB873537FF945A3251B0566F13B5969PH0PR05MB8735namp_"
MIME-Version: 1.0
X-OriginatorOrg: juniper.net
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: PH0PR05MB8735.namprd05.prod.outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 036f2be6-b558-4435-2709-08da70806df4
X-MS-Exchange-CrossTenant-originalarrivaltime: 28 Jul 2022 10:03:32.8563 (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: jd8PsKSpGjmZO+UcZ8iSrveQbgXQbMAG7Q5o30nAANLFO++UndOYQTIgjN8d2XReY1ZkI2G3Teqy7KEx0KqrPg==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR0501MB3788
X-Proofpoint-ORIG-GUID: Gqhu3ljdmsBEM2g820_-dzIiHNXQimeb
X-Proofpoint-GUID: Gqhu3ljdmsBEM2g820_-dzIiHNXQimeb
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=2022-07-28_03,2022-07-28_02,2022-06-22_01
X-Proofpoint-Spam-Details: rule=outbound_spam_notspam policy=outbound_spam score=0 bulkscore=0 impostorscore=0 mlxscore=0 suspectscore=0 spamscore=0 clxscore=1011 priorityscore=1501 adultscore=0 malwarescore=0 phishscore=0 lowpriorityscore=0 mlxlogscore=503 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2206140000 definitions=main-2207280044
Archived-At: <https://mailarchive.ietf.org/arch/msg/idr/qk3rRkuHD7hgd8Ie39EvGJ_sSNQ>
Subject: [Idr] Queries on draft https://datatracker.ietf.org/doc/html/draft-ietf-idr-te-lsp-distribution-17
X-BeenThere: idr@ietf.org
X-Mailman-Version: 2.1.39
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, 28 Jul 2022 10:03:55 -0000

Hope everyone is doing well.

My queries are regarding the following flags:

  1.  https://datatracker.ietf.org/doc/html/draft-ietf-idr-te-lsp-distribution-17#section-6.7


E-Flag : Indicates that SID-List is an explicit path when set
        and indicates dynamic path when clear.



         C-Flag : Indicates that SID-List has been computed for a

           dynamic path when set.  It is always reported as set for

           explicit paths.


     Does E flag only get set for Statically configured segment-list (non-compute) on headend router?
     Does E flag includes PCE/Controller provisioned segment-lists as well? Because PCE/Controller provisioned segment-lists are dynamically provisioned by controller on the headend.
     Does C flag only gets set for locally computed segment-lists? Because if PCE/Controller provisioned segment-lists are also dynamic paths but not locally computed, will this C flag
                    be set for those as well?
                    What is the meaning of "It is always reported as set for explicit paths" in C flag?
                   In case of delegation how these 2 flags will be set? Because the computation is done in the controller with the local constraint set.


  1.  https://datatracker.ietf.org/doc/html/draft-ietf-idr-te-lsp-distribution-17#section-6.8

      *  E-Flag : Indicates the SID value is explicitly provisioned

         value (locally on headend or via controller/PCE) when set and

         is a dynamically resolved value by headend when clear

Does this E flag on each segment means if this segment is explicitly configured in the segment-list locally? i.e. if a segment-list is a mixture of some statically configured segments (non-compute) and some are computed/translated segments, then segment-list will be set with both segment-list C and E flags and only the non-compute segments will be set with E flag?

Does this E flag be set on all segments of a PCE/controller provisioned segment-list? If yes then will such PCE/Controller provisioned segment-lists be marked with segment-list E flag? But then such segment-lists are not dynamic anymore right?

Thanks and Regards,
Abhishek



Juniper Business Use Only

v2.23.0 | Report a Bug | By Email