IETF Logo Mail Archive

Re: [spring] SRv6 BGP based Overlay Services (draft-ietf-bess-srv6-services-07)

Rajesh M <mrajesh@juniper.net> Thu, 01 July 2021 07:26 UTC

Return-Path: <mrajesh@juniper.net>
X-Original-To: spring@ietfa.amsl.com
Delivered-To: spring@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 305703A1988 for <spring@ietfa.amsl.com>; Thu, 1 Jul 2021 00:26:11 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.196
X-Spam-Level:
X-Spam-Status: No, score=-2.196 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.198, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HTML_MESSAGE=0.001, HTTPS_HTTP_MISMATCH=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=unFU6Nsm; dkim=pass (1024-bit key) header.d=juniper.net header.b=UN9e9/kv
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 ayY50ptPg_Gz for <spring@ietfa.amsl.com>; Thu, 1 Jul 2021 00:26:06 -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 E30733A1985 for <spring@ietf.org>; Thu, 1 Jul 2021 00:26:05 -0700 (PDT)
Received: from pps.filterd (m0108163.ppops.net [127.0.0.1]) by mx0b-00273201.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 1617PKfC013465; Thu, 1 Jul 2021 00:26:03 -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 : mime-version; s=PPS1017; bh=YYufJvB2Q/Sfjh4Xy3FoTa67O/DKTbRZnXsAPMhmRIE=; b=unFU6NsmaW26CkRjb5p/Sv4Nul2a/f5dvMcEwzex+QgXwcKSoHbkB82sB+sBUN3RYDtL jj8f3JNW2keLiePcta5SOR7RzzhZGmv+jNDrU5gww8KB33zj8FKgu8ekY0XP5jEbAr+1 p56wVxkDHN/QjjQh4Wkiyh1/vZ3vyROObwzRwd03+9iguzaJUGiIqwX/KfjhQocohdAf Fiu4uVW/t4D9P5of9SwuW/t2ti34Q5g6tUHxW8N5NdCzlkEP+aN6UwsjIRxpt4hCFS63 HRFvoeXIF7eobPcq4IsBbP4YjlGQVPL05TboPzYNjPLdmZ/0+MQCCGR5HvgW5J9KVLYA rg==
Received: from nam10-bn7-obe.outbound.protection.outlook.com (mail-bn7nam10lp2102.outbound.protection.outlook.com [104.47.70.102]) by mx0b-00273201.pphosted.com with ESMTP id 39gws9h7at-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Jul 2021 00:26:03 -0700
ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=oBRBLZse3MALe/ANK+73R5yggIG2N0pTc0yiTYY/ZYdtRzemwcn7FMFhtaDpYgQiNj/+NoNBjoc7jlfMouS7jYKnBey7D2i10NM70bG3Qz90Eyl0eVyTlCLwEIlnSVgbJ8qTyPXwsCJAwhANzvQVZpfG8d1+Yw4y5EzuUHAfTc4MIAwdGFV/h2R/7uCfXC7u/H96QiQAku1UBluYFNlqq8qNSakSf6LBoGNzbK6PsZoLX0bzKJYqH9SquYQMaTpi13jAEM0vxqwH3L/+pqauQfTX/tkHgftVb9uODr+ZnT7ENUuen3Nxd68pr9VIgo7KFfYLSli5x8D8vx/YHyYeMw==
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=YYufJvB2Q/Sfjh4Xy3FoTa67O/DKTbRZnXsAPMhmRIE=; b=au+/lp1OMrZq97pLlm8j9hTI6ryKYlT6jzGBWN9TCIvQQO049Y3DpYQeARRiwgqIdhLH3k8ukmgWSQRi10Il5s6cgb8rx+7Rz6hBJ2AmbyAO1/TCOz50RRJ9ShZh1ZD0a6/ihgyU7mOQs/NTYfvRY2xQi/MMFHhlh+FPoQ7av2rV5DffCGiux0Gp2h3GPihwGtMzZchrRUWSieu019OLBwlKwCjP5JsJISR7ycKPETDtq6b4QtwMC4svxqmLNnaA7XCmsrm21GaiDFk6ZiMPwTp6YiPLQmFy67nc4Z9I3mc4sFt+Jjx2CO+VBDFG07i2KwCvISTRPo+40pfXZjHeQA==
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=YYufJvB2Q/Sfjh4Xy3FoTa67O/DKTbRZnXsAPMhmRIE=; b=UN9e9/kvhkhyvaNa4UeHZIXPXwgoSrWVlpB8gFate1kR0FbQINt3tMWMa3hNKKZThmx0ewgnQl9rxf6P0hAYlIok4HsQ/F0KFR1ozsgz2ocqpYxq8ehcwMx3DLoHcsvz4zpN4YVXrf5qD+ouS5GbkiLVBB+33ToQ6+BoDmz4eG4=
Received: from BN6PR05MB3634.namprd05.prod.outlook.com (2603:10b6:405:41::20) by BN6PR05MB2961.namprd05.prod.outlook.com (2603:10b6:404:2d::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4308.8; Thu, 1 Jul 2021 07:25:59 +0000
Received: from BN6PR05MB3634.namprd05.prod.outlook.com ([fe80::ac5b:4a2e:aa16:e15d]) by BN6PR05MB3634.namprd05.prod.outlook.com ([fe80::ac5b:4a2e:aa16:e15d%5]) with mapi id 15.20.4287.023; Thu, 1 Jul 2021 07:25:59 +0000
From: Rajesh M <mrajesh@juniper.net>
To: "Ketan Talaulikar (ketant)" <ketant@cisco.com>, "gdawra.ietf@gmail.com" <gdawra.ietf@gmail.com>, "Clarence Filsfils (cfilsfil)" <cfilsfil@cisco.com>, "robert@raszuk.net" <robert@raszuk.net>, "bruno.decraene@orange.com" <bruno.decraene@orange.com>, "jorge.rabadan@nokia.com" <jorge.rabadan@nokia.com>
CC: "spring@ietf.org" <spring@ietf.org>
Thread-Topic: SRv6 BGP based Overlay Services (draft-ietf-bess-srv6-services-07)
Thread-Index: AdduHsVFc6GKXYmIRamwdu2c0/caggAGjbIAAAOIfaA=
Date: Thu, 01 Jul 2021 07:25:58 +0000
Message-ID: <BN6PR05MB3634A19CB2E2DE878C163583BE009@BN6PR05MB3634.namprd05.prod.outlook.com>
References: <BN6PR05MB3634EE53D5F99313D4FEDD7FBE009@BN6PR05MB3634.namprd05.prod.outlook.com> <MW3PR11MB45708EADFC3804A8DFDDEF08C1009@MW3PR11MB4570.namprd11.prod.outlook.com>
In-Reply-To: <MW3PR11MB45708EADFC3804A8DFDDEF08C1009@MW3PR11MB4570.namprd11.prod.outlook.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
dlp-product: dlpe-windows
dlp-version: 11.6.100.41
dlp-reaction: no-action
msip_labels: MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_Enabled=true; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_SetDate=2021-07-01T02:28:18Z; 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=e42429f7-9318-4e4e-9fe4-ce055f1a5e26; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_ContentBits=2
authentication-results: cisco.com; dkim=none (message not signed) header.d=none;cisco.com; dmarc=none action=none header.from=juniper.net;
x-ms-publictraffictype: Email
x-ms-office365-filtering-correlation-id: e7603711-87b0-463a-5eab-08d93c617910
x-ms-traffictypediagnostic: BN6PR05MB2961:
x-microsoft-antispam-prvs: <BN6PR05MB2961571885717A3F369DCB95BE009@BN6PR05MB2961.namprd05.prod.outlook.com>
x-ms-oob-tlc-oobclassifiers: OLM:6790;
x-ms-exchange-senderadcheck: 1
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:BN6PR05MB3634.namprd05.prod.outlook.com; PTR:; CAT:NONE; SFS:(4636009)(366004)(136003)(346002)(376002)(396003)(39860400002)(26005)(478600001)(52536014)(64756008)(166002)(86362001)(66476007)(66556008)(66446008)(6506007)(53546011)(55016002)(4326008)(76116006)(8676002)(38100700002)(122000001)(186003)(66946007)(9686003)(33656002)(966005)(7696005)(316002)(2906002)(8936002)(110136005)(71200400001)(5660300002); DIR:OUT; SFP:1102;
x-ms-exchange-antispam-messagedata-chunkcount: 1
x-ms-exchange-antispam-messagedata-0: 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
x-ms-exchange-transport-forked: True
Content-Type: multipart/alternative; boundary="_000_BN6PR05MB3634A19CB2E2DE878C163583BE009BN6PR05MB3634namp_"
MIME-Version: 1.0
X-OriginatorOrg: juniper.net
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: BN6PR05MB3634.namprd05.prod.outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: e7603711-87b0-463a-5eab-08d93c617910
X-MS-Exchange-CrossTenant-originalarrivaltime: 01 Jul 2021 07:25:58.9297 (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: XitaSK7g2LLFbahpuqUY5vxfZrYI2dLUCXMdkGNYftSLrer4pMsrik3sORg75tfHzBxN6J6QpjYH7+sOz6Jq6g==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN6PR05MB2961
X-Proofpoint-GUID: DlhQ_WNXL-ZEvXziNPHQfduy4yzdqDIL
X-Proofpoint-ORIG-GUID: DlhQ_WNXL-ZEvXziNPHQfduy4yzdqDIL
X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.391, 18.0.790 definitions=2021-07-01_01:2021-06-30, 2021-07-01 signatures=0
X-Proofpoint-Spam-Details: rule=outbound_spam_notspam policy=outbound_spam score=0 suspectscore=0 impostorscore=0 mlxscore=0 lowpriorityscore=0 clxscore=1015 bulkscore=0 phishscore=0 spamscore=0 adultscore=0 priorityscore=1501 mlxlogscore=999 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104190000 definitions=main-2107010050
Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/FGD1JXh--IWjkDa8eXHSmeAImAc>
Subject: Re: [spring] SRv6 BGP based Overlay Services (draft-ietf-bess-srv6-services-07)
X-BeenThere: spring@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "Source Packet Routing in NetworkinG \(SPRING\)" <spring.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/spring>, <mailto:spring-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/spring/>
List-Post: <mailto:spring@ietf.org>
List-Help: <mailto:spring-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/spring>, <mailto:spring-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 01 Jul 2021 07:26:11 -0000

Thanks Ketan. For flex algo scenario,

Resolution we must do using BGP next hop  or srv6 service sid (here srv6 service sid is derived from the corresponding flex algo locator) ?
These are all very important to know for interop.

Thanks
Rajesh




Juniper Business Use Only
From: Ketan Talaulikar (ketant) <ketant@cisco.com>
Sent: Thursday, July 1, 2021 10:53 AM
To: Rajesh M <mrajesh@juniper.net>; gdawra.ietf@gmail.com; Clarence Filsfils (cfilsfil) <cfilsfil@cisco.com>; robert@raszuk.net; bruno.decraene@orange.com; jorge.rabadan@nokia.com
Cc: spring@ietf.org
Subject: RE: SRv6 BGP based Overlay Services (draft-ietf-bess-srv6-services-07)

[External Email. Be cautious of content]

Hi Rajesh,

Per https://datatracker.ietf.org/doc/html/draft-ietf-spring-segment-routing-policy-13#section-8.4<https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/html/draft-ietf-spring-segment-routing-policy-13*section-8.4__;Iw!!NEt6yMaO-gk!X5JG5RvPO7zSCWr0y8h4SY2L5wTHUtXyL2Mv8qCzOC5-z59jAW73EAj9vdkbfS8H$> the endpoint of the SR Policy is matched with the BGP nexthop.

Thanks,
Ketan

From: Rajesh M <mrajesh@juniper.net<mailto:mrajesh@juniper.net>>
Sent: 01 July 2021 07:58
To: gdawra.ietf@gmail.com<mailto:gdawra.ietf@gmail.com>; Clarence Filsfils (cfilsfil) <cfilsfil@cisco.com<mailto:cfilsfil@cisco.com>>; Ketan Talaulikar (ketant) <ketant@cisco.com<mailto:ketant@cisco.com>>; robert@raszuk.net<mailto:robert@raszuk.net>; bruno.decraene@orange.com<mailto:bruno.decraene@orange.com>; jorge.rabadan@nokia.com<mailto:jorge.rabadan@nokia.com>
Cc: spring@ietf.org<mailto:spring@ietf.org>
Subject: SRv6 BGP based Overlay Services (draft-ietf-bess-srv6-services-07)

Hi All,

As per the draft

"When the BGP route received at an ingress PE is colored with an extended color community and is being steered over a valid SRv6

Policy associated with SID list <S1, S2, S3> as described in Section 8 of [I-D.ietf-spring-segment-routing-policy<https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/html/draft-ietf-bess-srv6-services-07*ref-I-D.ietf-spring-segment-routing-policy__;Iw!!NEt6yMaO-gk!X5JG5RvPO7zSCWr0y8h4SY2L5wTHUtXyL2Mv8qCzOC5-z59jAW73EAj9vTe1LjMn$>], then the

effective SR Policy is <S1, S2, S3-Service-SID>"



Here also "ingress PE SHOULD perform resolvability check for the S3 Service SID before considering the received prefix for the BGP best path computation"



Lets consider s3 service SID resolution over SRv6 TE Policy, destination address(or endpoint) of an SRv6 TE Policy is a 128 bit address(host address).So for each service SID we need to configure SRv6 TE Policy (SRV6 TE policy destination address as service SID) ?





Thanks

Rajesh















Juniper Business Use Only

v2.23.0 | Report a Bug | By Email