Re: [Bier] A comment about draft-xzlnp-bier-ioam

"Jeffrey (Zhaohui) Zhang" <zzhang@juniper.net> Mon, 21 March 2022 18:21 UTC

Return-Path: <zzhang@juniper.net>
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 523B43A1A8C for <bier@ietfa.amsl.com>; Mon, 21 Mar 2022 11:21:58 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.109
X-Spam-Level:
X-Spam-Status: No, score=-2.109 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, RCVD_IN_DNSWL_BLOCKED=0.001, 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=XPmKP8SB; dkim=pass (1024-bit key) header.d=juniper.net header.b=RDSa/uJQ
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 I206edbqKm4L for <bier@ietfa.amsl.com>; Mon, 21 Mar 2022 11:21:53 -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 14BA13A1A85 for <bier@ietf.org>; Mon, 21 Mar 2022 11:21:52 -0700 (PDT)
Received: from pps.filterd (m0108160.ppops.net [127.0.0.1]) by mx0b-00273201.pphosted.com (8.16.1.2/8.16.1.2) with ESMTP id 22LFAahb012700; Mon, 21 Mar 2022 11:21:52 -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=hu4xlk36V2tyB9EqfuIkjNvymdRAQtDNsRaX4HEVW0U=; b=XPmKP8SBnYG89Gyh0gvwuhSY7WN/OX+XSFRMTQLgo0ofdUSKcOtOQh+Ro0X/UyfeHSFD z6KCW2YA6dwzXzujXQPugwBcEdtvqZTFStKC6oQTQjTOkC7UFvu1Y3kmX3yab7XqVW/B 5qlB650c3PNPgsJQ7gDp2HltJMBmLzGTBqmMNaCAhC3/PjV8I6LX1SAOLkeZqHEt4ByB b45p5lP8xBizpofGnOn3b4V19+GaPxqTizVpWWrjuWIPlO4KJTEEs3tPGzlcQOYuCss7 Wxps1cL58k7J8aokJ2n7Xv6BDkB4Qu1L7BRuoKkyaeorz1cjSyN60GDFJ2+umlFv8N1+ qA==
Received: from nam10-dm6-obe.outbound.protection.outlook.com (mail-dm6nam10lp2103.outbound.protection.outlook.com [104.47.58.103]) by mx0b-00273201.pphosted.com (PPS) with ESMTPS id 3ewd3gcdtm-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 21 Mar 2022 11:21:51 -0700
ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=Ra4dj2VarA0bIXXvFTxZjhLor0tE9xE/OJBwQ8eZSepAx0qN5Ui7tBA+Ltc55/7Tj9bgBPAxIpdbd5+DPik/lia3I6KmburhTKCI+NsieSHzlhh8cWTjTwxEa40QeypGYX9WPu8VrUpQzQm17XBFF/i4dP33/Jyu3Pt0SGZaYScJg6nZVCxDkJ4v41PMpV9Hnxm34SZcnDao6lpj0w/SM6vIfwxiLH6/YcUenzcBFjIPgUcT84v9yMLTJanQX6MFtMT9F5MnDLFmlpikyT1lhpmucYKL5eVPmoLgjaMnYi8KWwPKtAluoXqu0YZdJgk/KDx/2yNi1mhPfYl8e7GH6w==
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=hu4xlk36V2tyB9EqfuIkjNvymdRAQtDNsRaX4HEVW0U=; b=I0OQZ+sMj/wdrVhS0okRNuSWqKiX8B+S7tl7qwyraQMCjHnWNJ+TfOXsLQ4gY6gqgm34uFUGK5I12BrZuhoCxQRrkkPtE1CZLaVy3vvYX0frzoxqzdIiD9FXKVgklnyYQ/x9qgoHRr4mgU4GqcvusXSgdXnxG4BXORCeXR8q7uF/OU8d+ccC7g+7+ByiDfzniz8r4z1oqR4IVQns1AOlYD6iJjKYkMjgv12Hj2JUL8bWYkMK8S58gSLQ+U5ZvcacNgkdq7zBg+tG5bUfoUW4wXP+T07D7LohVf2+AE8CZmQei7eD7euDJIhqInkp9NeAQ5AQPPfINiCOAJDAMe2b+w==
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=hu4xlk36V2tyB9EqfuIkjNvymdRAQtDNsRaX4HEVW0U=; b=RDSa/uJQEvEA7aEvKHuQATXwtVqMYZQAlu8oX6BC9LEXQ6gXuLv88HzhroARstVZKZ+8JJh1C3H9iNLi0DHDGUWbmCHA04/1bqdMcno4lUvBVvACCNG4h/lWOPJbRB0RokXRDiwpedgl8515PsXgEb7sZf+r1caBPC/zFicc8Tw=
Received: from BL0PR05MB5652.namprd05.prod.outlook.com (2603:10b6:208:6a::19) by MWHPR05MB3296.namprd05.prod.outlook.com (2603:10b6:301:3d::31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5102.8; Mon, 21 Mar 2022 18:21:48 +0000
Received: from BL0PR05MB5652.namprd05.prod.outlook.com ([fe80::dd5:3242:3508:3cf9]) by BL0PR05MB5652.namprd05.prod.outlook.com ([fe80::dd5:3242:3508:3cf9%5]) with mapi id 15.20.5102.015; Mon, 21 Mar 2022 18:21:48 +0000
From: "Jeffrey (Zhaohui) Zhang" <zzhang@juniper.net>
To: "xiao.min2@zte.com.cn" <xiao.min2@zte.com.cn>
CC: "bier@ietf.org" <bier@ietf.org>
Thread-Topic: Re:[Bier] A comment about draft-xzlnp-bier-ioam
Thread-Index: Adg6xfU8UxzNoslpTIerKIi728m8bgAlO+cAAH0Z7zA=
Date: Mon, 21 Mar 2022 18:21:48 +0000
Message-ID: <BL0PR05MB5652ADBDD6DA80DAE36E2B8AD4169@BL0PR05MB5652.namprd05.prod.outlook.com>
References: BL0PR05MB56526573902EEC959F7F4072D4139@BL0PR05MB5652.namprd05.prod.outlook.com <202203191430580019286@zte.com.cn>
In-Reply-To: <202203191430580019286@zte.com.cn>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
dlp-product: dlpe-windows
dlp-version: 11.9.0.81
dlp-reaction: no-action
msip_labels: MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_Enabled=true; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_SetDate=2022-03-21T18:21:45Z; 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=65773079-e9db-4129-a83e-6c2af19e3568; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_ContentBits=2
x-ms-publictraffictype: Email
x-ms-office365-filtering-correlation-id: 25f3f144-48f4-43d6-112d-08da0b67a9af
x-ms-traffictypediagnostic: MWHPR05MB3296:EE_
x-ms-exchange-atpmessageproperties: SA|SL
x-microsoft-antispam-prvs: <MWHPR05MB32967F56E089E63E8E71DC23D4169@MWHPR05MB3296.namprd05.prod.outlook.com>
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:(13230001)(4636009)(366004)(66446008)(76116006)(66556008)(4326008)(64756008)(66476007)(66946007)(7696005)(53546011)(6506007)(186003)(38070700005)(9686003)(316002)(71200400001)(6916009)(508600001)(38100700002)(8676002)(83380400001)(122000001)(55016003)(2906002)(5660300002)(52536014)(8936002)(33656002)(966005)(86362001); DIR:OUT; SFP:1102;
x-ms-exchange-antispam-messagedata-chunkcount: 1
x-ms-exchange-antispam-messagedata-0: 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
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
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: 25f3f144-48f4-43d6-112d-08da0b67a9af
X-MS-Exchange-CrossTenant-originalarrivaltime: 21 Mar 2022 18:21:48.1300 (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: M+4AEaeuwtgmM/qyDkORZhaQRT7G5PrHOMdze/9w1aADaSg2/oyfOgPWV2FKnRP2IwpHUhz5okh+WcG8lfg/mw==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR05MB3296
X-Proofpoint-GUID: iA2l655Vl3YD66BeSlkW3yGvd6S-BH-O
X-Proofpoint-ORIG-GUID: iA2l655Vl3YD66BeSlkW3yGvd6S-BH-O
X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.850,Hydra:6.0.425,FMLib:17.11.64.514 definitions=2022-03-21_07,2022-03-21_01,2022-02-23_01
X-Proofpoint-Spam-Details: rule=outbound_spam_notspam policy=outbound_spam score=0 spamscore=0 impostorscore=0 lowpriorityscore=0 bulkscore=0 priorityscore=1501 adultscore=0 mlxscore=0 phishscore=0 mlxlogscore=999 malwarescore=0 clxscore=1011 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2202240000 definitions=main-2203210117
Archived-At: <https://mailarchive.ietf.org/arch/msg/bier/A8BWYqGEfUNTdbqdb7vOc3aeUMQ>
Subject: Re: [Bier] A comment about draft-xzlnp-bier-ioam
X-BeenThere: bier@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "\"Bit Indexed Explicit Replication discussion list\"" <bier.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/bier>, <mailto:bier-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/bier/>
List-Post: <mailto:bier@ietf.org>
List-Help: <mailto:bier-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/bier>, <mailto:bier-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 21 Mar 2022 18:21:58 -0000

Hi Xiao Min,

The purpose of GDF is to use the same extension header format for functionalities that may be used at different layers. Fragmentation was one example, and IOAM is another.
For that, it is ideal if IPv6/MPLS/BIER all could use the same extension headers.

While this draft is about IOAM, if we talk about BIER extension headers we need to consider it holistically.

Jeffrey


Juniper Business Use Only

-----Original Message-----
From: xiao.min2@zte.com.cn <xiao.min2@zte.com.cn> 
Sent: Saturday, March 19, 2022 7:31 AM
To: Jeffrey (Zhaohui) Zhang <zzhang@juniper.net>
Cc: bier@ietf.org
Subject: Re:[Bier] A comment about draft-xzlnp-bier-ioam

[External Email. Be cautious of content]


Hi Jeffrey,

Thank you for bringing it up to our attention.
I do agree your GDF draft provides a third option on how to encapsulate IOAM over BIER, which is different from the two options already described and compared in this BIER-IOAM draft.
To my understanding, the initial and main motivation to introduce GDF is to provide a fragmentation header for MPLS/BIER etc, just like IPv6 FH.
With that in mind, one possible way to push this "Encapsulating IOAM in BIER" work forward is to add the third option into BIER-IOAM draft for comparison, that makes it focused and easy to follow.
What's your opinion?

Best Regards,
Xiao Min

------------------原始邮件------------------
发件人:Jeffrey(Zhaohui)Zhang
收件人:'bier@ietf.org';draft-xzlnp-bier-ioam@ietf.org;
日 期 :2022年03月18日 20:56
主 题 :[Bier] A comment about draft-xzlnp-bier-ioam Hi, For IOAM data in BIER, I want to point out that we should use a generic header format that can be used for BIER/MPLS/IPv6. The same extension mechanism can be used for other purposes like fragmentation/security, etc..
This was discussed in https://urldefense.com/v3/__https://www.ietf.org/archive/id/draft-zzhang-intarea-generic-delivery-functions-02.txt__;!!NEt6yMaO-gk!Q-3JJzNBtHRy-DGJNrQ4wqe7oXPyU1zkyW42eRc0vbprEoml9zmtJ_tA5MyGUkgy$ , and was mentioned in slide #6 of https://urldefense.com/v3/__https://datatracker.ietf.org/meeting/112/materials/slides-112-bier-03-bier-slicing-and-differentiation-00__;!!NEt6yMaO-gk!Q-3JJzNBtHRy-DGJNrQ4wqe7oXPyU1zkyW42eRc0vbprEoml9zmtJ_tA5F-dbdqg$  in IETF112 BIER session.
Thanks.
Jeffrey
Juniper Business Use Only
_______________________________________________
BIER mailing list
BIER@ietf.org
https://urldefense.com/v3/__https://www.ietf.org/mailman/listinfo/bier__;!!NEt6yMaO-gk!Q-3JJzNBtHRy-DGJNrQ4wqe7oXPyU1zkyW42eRc0vbprEoml9zmtJ_tA5JjrM0gJ$