IETF Logo Mail Archive

Re: [mpls] MPLS-RT Review of draft-gandhi-mpls-ioam-sr-04

"Rakesh Gandhi (rgandhi)" <rgandhi@cisco.com> Mon, 18 January 2021 21:37 UTC

Return-Path: <rgandhi@cisco.com>
X-Original-To: mpls@ietfa.amsl.com
Delivered-To: mpls@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id C29F03A12C1; Mon, 18 Jan 2021 13:37:17 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -9.618
X-Spam-Level:
X-Spam-Status: No, score=-9.618 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_DNSWL_BLOCKED=0.001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001, 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=SQQmOrt6; dkim=pass (1024-bit key) header.d=cisco.onmicrosoft.com header.b=nMd/3ijk
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 mT6g13MmAP9t; Mon, 18 Jan 2021 13:37:15 -0800 (PST)
Received: from alln-iport-5.cisco.com (alln-iport-5.cisco.com [173.37.142.92]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id AECB43A139C; Mon, 18 Jan 2021 13:36:13 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=7618; q=dns/txt; s=iport; t=1611005773; x=1612215373; h=from:to:cc:subject:date:message-id:references: in-reply-to:mime-version; bh=BzNd9ELLS4PsCt0qPRgBR/2ezaE43M2ODgjm4mEYPhc=; b=SQQmOrt6ZQd43uwWrt4tHMbKVS9WiBJQzoVWljkqLjbR4kcqtUF6df+w DtqAUQifydTScin1o/RdUm6ykIN8KD1loCLnWsg3GeOubPVK2yirOWW+q aChoAELAR9fzSFxdONY1T9otjHcsVZHYuq15aZXss8rvhveLiAU7Q+wAl 4=;
X-IPAS-Result: A0DBAAB3/QVgmIsNJK1iGwEBAQEBAQEBBQEBARIBAQEDAwEBAUCBT4EjMCkofVsvL4gHA4tughcDihyKBIRzglMDVAsBAQENAQEtAgQBAYRKAoFwAiU4EwIDAQEBAwIDAQEBAQUBAQECAQYEFAEBAQEBAQEBhjYMhXMBAQEDAUABATcBBAcEAgEIEQMBAQEBJwchERQJCAIEAQ0FCIMeAYF+VwMOIAGkCgKKJXSBNIMFAQEGhQ0NC4IRCYE4gnaFC4U2JhuBQT+BEAFDglY+ghtCBIFfHgYQgxeCLIFpWWqBGVFEATRRkkMBh3OdH1gKgneWSoVAomqUG44WjnaEQwIEAgQFAg4BAQaBbSGBWXAVgyRQFwINjiERCQmBAgECgkmKWHQCNQIGCgEBAwl8jCQBAQ
IronPort-PHdr: 9a23:y3pLOxyMmEWMDtXXCy+N+z0EezQntrPoPwUc9psgjfdUf7+++4j5ZRWDt/pohV7NG47c7qEMh+nXtvXmXmoNqdaEvWsZeZNBHxkClY0NngMmDcLEbC+zLPPjYyEgWsgXUlhj8iK0NEFUHID1YFiB6nG35CQZTxP4Mwc9L+/pG4nU2sKw0e36+5DabwhSwjSnZrYnJxStpgKXvc4T0oY=
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-AV: E=Sophos;i="5.79,357,1602547200"; d="scan'208,217";a="647028055"
Received: from alln-core-6.cisco.com ([173.36.13.139]) by alln-iport-5.cisco.com with ESMTP/TLS/DHE-RSA-SEED-SHA; 18 Jan 2021 21:36:10 +0000
Received: from XCH-RCD-001.cisco.com (xch-rcd-001.cisco.com [173.37.102.11]) by alln-core-6.cisco.com (8.15.2/8.15.2) with ESMTPS id 10ILaAd3016056 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=FAIL); Mon, 18 Jan 2021 21:36:10 GMT
Received: from xhs-rcd-003.cisco.com (173.37.227.248) by XCH-RCD-001.cisco.com (173.37.102.11) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 18 Jan 2021 15:36:09 -0600
Received: from xhs-rtp-003.cisco.com (64.101.210.230) by xhs-rcd-003.cisco.com (173.37.227.248) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 18 Jan 2021 15:36:09 -0600
Received: from NAM10-BN7-obe.outbound.protection.outlook.com (64.101.32.56) by xhs-rtp-003.cisco.com (64.101.210.230) with Microsoft SMTP Server (TLS) id 15.0.1497.2 via Frontend Transport; Mon, 18 Jan 2021 16:36:09 -0500
ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=gM2FVxu23Mr2t36EaTpx+GP+VcDUsU2Inv13fJZcqOH9mlvRlcA9pQhagGwDZPNskY4wJq+bBq5EKjs6yMobVdeeqs2T0CG1YXKEYiCLknVvLuQEWg9wJ3YtVPjKPpUnsn/A7U3V2BXEorYDQvzqsP77N7zTl/fm/Y34bvRrEPIBY0Qdit7OXEB7GCT6MHKRv+sgoRkZNssVcM2ZuWtBNwSWV5Zct7b45SScVjmz8UeNNW3UOVQF6wCZGG31a09ZWzRetgNMIZld83Kza3qyU3lHDJ5HAZV2T3xWV+RodDpU94NEkm2qDDYnrpdc/L8bm03wyOoGYYrvap4/TRV/dA==
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=Y3QcFQhCQGNSnDrn3aWWJdm4dWRLijhXt432nZHMivo=; b=C6560CaOL3KmVut7y/+G3Ffgn7IudESGogUYbIIIx2LabSgQKvlAUVqgJfhazXrwNV7B6HgGpq84QQ+hfawlSrr2m0hXnPRdYNgffo2/mWDz305OcbiB30Xzfm3Eu1W0l25ZnJM4Z6X33t0FPDkE9T4ByNMrysbqwdMH/7jUewxfH+06g+tZZZ6jMtfJZXmD+S10ILxZ9evlsyWAMrFqgZ9pL930+Tpinn4b7BGSUwDfDqm3on1164eG7moYd3xMdcgkcx2L/3P3vEcTMylNq0JrdYqAszozhoeQJZbhi28trSqj67OeEaLWZ0nlfmcZRKyJvK8yeDEiZNb3FcI0xw==
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=Y3QcFQhCQGNSnDrn3aWWJdm4dWRLijhXt432nZHMivo=; b=nMd/3ijklv3k6bwfze074ic4XNneMBOCwhQ2sC2rk+nchXVKB9tlNFUi4BKK3qUK4zYhkOD/m6UYC73OX/pNip5tIIddSSb4L0P12v0O+G812CUPIHue9s53kRno/K8E++MvmQMfHX4hUVuMb397UjtK85pe3dEtCQrrHCZ40kg=
Received: from DM6PR11MB3115.namprd11.prod.outlook.com (2603:10b6:5:66::33) by DM5PR11MB1402.namprd11.prod.outlook.com (2603:10b6:3:7::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3763.10; Mon, 18 Jan 2021 21:36:09 +0000
Received: from DM6PR11MB3115.namprd11.prod.outlook.com ([fe80::8c1a:5cb:f835:79e1]) by DM6PR11MB3115.namprd11.prod.outlook.com ([fe80::8c1a:5cb:f835:79e1%6]) with mapi id 15.20.3763.014; Mon, 18 Jan 2021 21:36:09 +0000
From: "Rakesh Gandhi (rgandhi)" <rgandhi@cisco.com>
To: Stewart Bryant <stewart.bryant@gmail.com>, Mach Chen <mach.chen@huawei.com>
CC: Stewart Bryant <stewart.bryant@gmail.com>, Eric Gray <eric.gray@ericsson.com>, loa Andersson <loa@pi.nu>, Greg Mirsky <gregimirsky@gmail.com>, mpls <mpls@ietf.org>, "Rakesh Gandhi (rgandhi)" <rgandhi=40cisco.com@dmarc.ietf.org>, mpls-chairs <mpls-chairs@ietf.org>, "draft-gandhi-mpls-ioam-sr@ietf.org" <draft-gandhi-mpls-ioam-sr@ietf.org>
Thread-Topic: [mpls] MPLS-RT Review of draft-gandhi-mpls-ioam-sr-04
Thread-Index: AQHW2hyE7dWc8KJ1EUG9/rtKvDGItqoPZZgAgAgyj5mAACGNgIAD2iCAgAAC0oCAAAWkAIAAFuiAgAAxOQCAAgK5AIAD4EAAgAEkigCAAIMcAIAKPMmAgABjS1k=
Date: Mon, 18 Jan 2021 21:36:08 +0000
Message-ID: <DM6PR11MB3115D423D85F84A3A1AD0547BFA40@DM6PR11MB3115.namprd11.prod.outlook.com>
References: <F73A3CB31E8BE34FA1BBE3C8F0CB2AE2980E847D@dggeml530-mbs.china.huawei.com> <31E0C5A4-1EA3-486F-8BC4-E4E9AA107D95@gmail.com> <F73A3CB31E8BE34FA1BBE3C8F0CB2AE2980F43C6@dggeml530-mbs.china.huawei.com>, <1111CEC7-B11D-4A22-AFEA-DB9F90FA0B82@gmail.com>
In-Reply-To: <1111CEC7-B11D-4A22-AFEA-DB9F90FA0B82@gmail.com>
Accept-Language: en-CA, en-US
Content-Language: en-CA
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: [2607:fea8:e29f:f9f0:ace9:55d4:fd04:fc49]
x-ms-publictraffictype: Email
x-ms-office365-filtering-correlation-id: a85be08b-7ca6-4450-2470-08d8bbf911a2
x-ms-traffictypediagnostic: DM5PR11MB1402:
x-microsoft-antispam-prvs: <DM5PR11MB140264E957519361284EEA5ABFA40@DM5PR11MB1402.namprd11.prod.outlook.com>
x-ms-oob-tlc-oobclassifiers: OLM:9508;
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:DM6PR11MB3115.namprd11.prod.outlook.com; PTR:; CAT:NONE; SFS:(366004)(136003)(39860400002)(376002)(346002)(396003)(76116006)(83380400001)(478600001)(66476007)(66556008)(2906002)(64756008)(66946007)(91956017)(8676002)(55016002)(5660300002)(110136005)(4326008)(66446008)(54906003)(33656002)(186003)(9686003)(86362001)(6506007)(53546011)(9326002)(7696005)(71200400001)(316002)(52536014)(8936002); DIR:OUT; SFP:1101;
x-ms-exchange-antispam-messagedata: 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
x-ms-exchange-transport-forked: True
Content-Type: multipart/alternative; boundary="_000_DM6PR11MB3115D423D85F84A3A1AD0547BFA40DM6PR11MB3115namp_"
MIME-Version: 1.0
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: DM6PR11MB3115.namprd11.prod.outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: a85be08b-7ca6-4450-2470-08d8bbf911a2
X-MS-Exchange-CrossTenant-originalarrivaltime: 18 Jan 2021 21:36:08.9106 (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: rVCMkqHpg6TT/iIOq4s90T2Xw/+v4AKxDNoNBelss3SvxIHjoyHtu0s0/Wa58ju4/c1timmnS6wmuf044V0M7Q==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR11MB1402
X-OriginatorOrg: cisco.com
X-Outbound-SMTP-Client: 173.37.102.11, xch-rcd-001.cisco.com
X-Outbound-Node: alln-core-6.cisco.com
Archived-At: <https://mailarchive.ietf.org/arch/msg/mpls/1Dq86rgghysfvyPooQbH0_kFpW0>
Subject: Re: [mpls] MPLS-RT Review of draft-gandhi-mpls-ioam-sr-04
X-BeenThere: mpls@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Multi-Protocol Label Switching WG <mpls.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/mpls>, <mailto:mpls-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/mpls/>
List-Post: <mailto:mpls@ietf.org>
List-Help: <mailto:mpls-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/mpls>, <mailto:mpls-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 18 Jan 2021 21:37:24 -0000

Hi Stewart,

Thanks for the suggestion. Agree with making this generic to MPLS and not specific to SR-MPLS.

Thanks,
Rakesh


From: Stewart Bryant <stewart.bryant@gmail.com>
Date: Monday, January 18, 2021 at 10:39 AM
To: Mach Chen <mach.chen@huawei.com>
Cc: Stewart Bryant <stewart.bryant@gmail.com>, Eric Gray <eric.gray@ericsson.com>, loa Andersson <loa@pi.nu>, Greg Mirsky <gregimirsky@gmail.com>, mpls <mpls@ietf.org>, Rakesh Gandhi (rgandhi) <rgandhi=40cisco.com@dmarc.ietf.org>, mpls-chairs <mpls-chairs@ietf.org>, draft-gandhi-mpls-ioam-sr@ietf.org <draft-gandhi-mpls-ioam-sr@ietf.org>
Subject: Re: [mpls] MPLS-RT Review of draft-gandhi-mpls-ioam-sr-04
Hi Mach

It is as much a question for the WG given that this is up for adoption.

In all other aspects MPLS-SR inherits everything from MPLS so why would it not do so here?

Also given that we want iOAM for SR why would we not want it for MPLS and associated technologies such as PW and VPN as well?

So my view is not to make a special case for SR and then have the complexity of introducing it to base MPLS, but instead solve this for MPLS and use it everywhere.

Is there something special about the SR case that I am missing here?

- Stewart



> On 12 Jan 2021, at 03:18, Mach Chen <mach.chen@huawei.com> wrote:
>
> Hi Stewart,
>
> I guess your questions are for the authors of the draft, I will let the authors to answer the questions :-)
>
> Best regards,
> Mach
>
>> -----Original Message-----
>> From: Stewart Bryant [mailto:stewart.bryant@gmail.com]
>> Sent: Tuesday, January 12, 2021 3:29 AM
>> To: Mach Chen <mach.chen@huawei.com>
>> Cc: Eric Gray <eric.gray@ericsson.com>; Loa Andersson <loa@pi.nu>; Greg
>> Mirsky <gregimirsky@gmail.com>; mpls <mpls@ietf.org>; Rakesh Gandhi
>> (rgandhi) <rgandhi=40cisco.com@dmarc.ietf.org>; mpls-chairs
>> <mpls-chairs@ietf.org>; draft-gandhi-mpls-ioam-sr@ietf.org
>> Subject: Re: [mpls] MPLS-RT Review of draft-gandhi-mpls-ioam-sr-04
>>
>> I have a slightly more fundamental question.
>>
>> Why are we specifying this for sr?
>>
>> Surely we should specify it for MPLS  and have SR inherit that?
>>
>> Also what happens if the MPLS payload is a PW or Detnet or something else
>> defined to be immediately below the bottom label?
>>
>> Stewart

v2.23.0 | Report a Bug | By Email