Re: [pim] pim wg adoption call for draft-chen-pim-srv6-p2mp-path-01

"Jeffrey (Zhaohui) Zhang" <zzhang@juniper.net> Fri, 22 January 2021 13:54 UTC

Return-Path: <zzhang@juniper.net>
X-Original-To: pim@ietfa.amsl.com
Delivered-To: pim@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id BE9503A1300 for <pim@ietfa.amsl.com>; Fri, 22 Jan 2021 05:54:17 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -3.359
X-Spam-Level:
X-Spam-Status: No, score=-3.359 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.25, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_MSPIKE_H5=-1, RCVD_IN_MSPIKE_WL=-0.01, 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=1l5Z4C+Y; dkim=pass (1024-bit key) header.d=juniper.net header.b=KCEE7Ja9
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 NlOPeQJ105-0 for <pim@ietfa.amsl.com>; Fri, 22 Jan 2021 05:54:16 -0800 (PST)
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 014723A12FD for <pim@ietf.org>; Fri, 22 Jan 2021 05:54:15 -0800 (PST)
Received: from pps.filterd (m0108162.ppops.net [127.0.0.1]) by mx0b-00273201.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 10MDjELs013601; Fri, 22 Jan 2021 05:54:01 -0800
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=juniper.net; h=from : to : subject : date : message-id : references : in-reply-to : content-type : content-transfer-encoding : mime-version; s=PPS1017; bh=hq9KpHlCQ4VI/MpVJyDqMXftURaF1EMEMKINyzRX1A0=; b=1l5Z4C+Y9r0HBsP2bYtNFEO38JwyjmJFNVNopI4ilzoiLgDxQ8usnwyq+IDAEY2/7muz TlFixjxdkVGPtj7XU1WfVIsJpFV4WELB6dJWyVOAfUmycZvsGv3RQyw4iW/PBY67NjvO ttFkpqB5Ls9a5NXTsG9sQ8G+tgSLb8QbDHMND8c8F4KeOV2vtwn7isKvgmbzPhUZ315f IArwB6T19if1vrkWZQd526xHUrIX6kt1dBSXansX43zoYyzLjxP+7TmYxNwUQBFI+tDH E5JJDOBhXBZtDEsCHN+0brV/Ho2qR299d7DghbUWJ0CeYNzX3XISsyuRAPGekC0Vj6Ga +A==
Received: from nam11-bn8-obe.outbound.protection.outlook.com (mail-bn8nam11lp2170.outbound.protection.outlook.com [104.47.58.170]) by mx0b-00273201.pphosted.com with ESMTP id 3668qxwebs-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 22 Jan 2021 05:54:01 -0800
ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=KYpzlLigeidrVUnrqx0uYlPQCJDBziGw60UGrmIwPREcZhOku7IBKKE1ODNdo7h2C1kU90siEHGKwq80JAqeGUibHLDU4Yfxq9wga4GdZqtau/O8YpOrNyTYpB6yLdrvyxQKDTgHLIxTc4rAyz+DXHj/wt2izyJXXMkMUIigv1j0g4ixQmbCmpSpe57l9olNkQBoVDbKXaWamS628mbqI8C+QVHRiQyNrXCTyJG6WMh+mhvyz8VgAR+KQCb1By7sK3Pf2ePcShHPKhP3QnBn2u3U+cLLvuNnVyXboGdbf4qIVJz4OAeTi3jReNBFKv5uBM0j8t5cVv0s4TH+2zTn4A==
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=hq9KpHlCQ4VI/MpVJyDqMXftURaF1EMEMKINyzRX1A0=; b=YJz68vRasYdf1NJebk5v+BFIKErl5il1W4nIVN/QzcsEeHbG35s+eyf/t3nQYkdmLPUESH/HydWGdrnoU8cqRnvL5QfND0qxtVtDLgx2eCn54XCxOAYrPR8SLMF4pA4rZR9QF8Vr20w2+C2CxUy0tNckLRD1am4h9XQCvPtSOZYk2eu2vKxOXmDTWhzZwwpwSriow9JeTH5ab72VeUY4xKJ77Ejjbvy0bNhEt74l2cPek6FewrlRLm2ErtQmqGqRVmehvLsRI6k6xb+qJc7yCE4klZfOVaAhxWdHO2Ub+W7WXH/+ZbdrVCeiLmLpx67fqdDT4GT4qRmLpE4U/K3JgA==
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=hq9KpHlCQ4VI/MpVJyDqMXftURaF1EMEMKINyzRX1A0=; b=KCEE7Ja9WMdlvWtlVy+9/Va9n9pfq9WeGnG8Oh4dyCBWuWwf4423qbNEwFp3Ty1iazVyyLTXADJLv6hAs3qM0yz6ca6CU9cGPOiKXHCpSUwra+HyMGoUFaLJa7tKscaoibqdM75LfLoXgvNpKXtbt4tQBk6r+kspBT8XXkWSvjM=
Received: from (2603:10b6:a03:d6::11) by SJ0PR05MB7246.namprd05.prod.outlook.com (2603:10b6:a03:289::21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3805.6; Fri, 22 Jan 2021 13:53:58 +0000
Received: from BYAPR05MB5974.namprd05.prod.outlook.com ([fe80::ad34:d064:c3ad:729b]) by BYAPR05MB5974.namprd05.prod.outlook.com ([fe80::ad34:d064:c3ad:729b%3]) with mapi id 15.20.3784.011; Fri, 22 Jan 2021 13:53:58 +0000
From: "Jeffrey (Zhaohui) Zhang" <zzhang@juniper.net>
To: wangyali <wangyali11@huawei.com>, Stig Venaas <stig@venaas.com>, "pim@ietf.org" <pim@ietf.org>
Thread-Topic: [pim] pim wg adoption call for draft-chen-pim-srv6-p2mp-path-01
Thread-Index: AQHW6FOH8xpasRVNxUOxtGa6HOkJQKoze0+AgAA+MsA=
Date: Fri, 22 Jan 2021 13:53:58 +0000
Message-ID: <BYAPR05MB59749B212CFC9724D7BBEBA5D4A09@BYAPR05MB5974.namprd05.prod.outlook.com>
References: <CAHANBtLs2F+x9ny8Jv=qe-28dFubcQL=k8bYXO4sybBr_Zpe5Q@mail.gmail.com> <1520992FC97B944A9979C2FC1D7DB0F40518202F@dggeml524-mbx.china.huawei.com>
In-Reply-To: <1520992FC97B944A9979C2FC1D7DB0F40518202F@dggeml524-mbx.china.huawei.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
dlp-product: dlpe-windows
dlp-version: 11.5.0.60
dlp-reaction: no-action
msip_labels: MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_ActionId=568af533-1852-4446-958a-21c6bd38aab1; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_ContentBits=0; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_Enabled=true; 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_SetDate=2021-01-22T13:47:10Z; MSIP_Label_0633b888-ae0d-4341-a75f-06e04137d755_SiteId=bea78b3c-4cdb-4130-854a-1d193232e5f4;
authentication-results: huawei.com; dkim=none (message not signed) header.d=none;huawei.com; dmarc=none action=none header.from=juniper.net;
x-originating-ip: [71.248.165.31]
x-ms-publictraffictype: Email
x-ms-office365-filtering-ht: Tenant
x-ms-office365-filtering-correlation-id: 120d507b-12f0-4a56-72aa-08d8bedd2a93
x-ms-traffictypediagnostic: SJ0PR05MB7246:
x-microsoft-antispam-prvs: <SJ0PR05MB7246D97BF046BB648432DA12D4A09@SJ0PR05MB7246.namprd05.prod.outlook.com>
x-ms-oob-tlc-oobclassifiers: OLM:8882;
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:BYAPR05MB5974.namprd05.prod.outlook.com; PTR:; CAT:NONE; SFS:(4636009)(366004)(110136005)(53546011)(498600001)(6506007)(186003)(8676002)(83380400001)(86362001)(2906002)(26005)(7696005)(5660300002)(52536014)(966005)(33656002)(64756008)(66556008)(66446008)(76116006)(66476007)(66946007)(9686003)(55016002)(8936002)(71200400001); DIR:OUT; SFP:1102;
x-ms-exchange-antispam-messagedata: =?us-ascii?Q?8oxKtMB7oIXPa+3Dhc896FVJORg+YSRUhexAmKNgp0xVDFQVb7GB/BxdtWDE?= =?us-ascii?Q?32H+Ttfep8pdVJ5YZIEIlL0IIxCYlW5MK5H1pYKqCC/fERA+p5C/EQPjOpVI?= =?us-ascii?Q?D3N43yB2/sNjOPWmSjct2w26Ri4j3F0H2MP1XFZTCraQif0mgmcbZFKanpxO?= =?us-ascii?Q?bxd5OFq9WtkyWJ93qVu8EQLU4zM519r9Hg7yNV/Z+/RdVQF3ZoJT62gvvz6g?= =?us-ascii?Q?sWmrrjqfMmHmxNS1kJn538+CSAxGpjBR25DHOSyVMikZk/tawLq6w8Aqn4ba?= =?us-ascii?Q?vfcdXWIyRypfRYjensv6w9Fq+1BckMwD91SwyXi6hKKyeR8XSYvRL6qNeUC5?= =?us-ascii?Q?HmpZsHf8LGlxkozzWSA1yNMOTgWpUWmq3QeIgBa3b4btkrx974QfxLwV2zT6?= =?us-ascii?Q?Ca4yz0GSIBou/tPKyVe0oU8g2r19RQWYUOCD4lWO/36B1ZmPyC20luxsEQs4?= =?us-ascii?Q?uV4zpK5KeEzidVmIRDGgcJI/2FJDuA2JU97YiHhKBhtkkf+rSYjtrwxZMLDk?= =?us-ascii?Q?XGhOx0PT/u5MBmItWd9m9sqb+jH0yMAG+58ESvdZf6577rYUOE8Nl5oy5SPy?= =?us-ascii?Q?uLjbB/5MKtBeng5GOIPO31qGxTuV0wtYXDpimINRSZYcsbKmRh2YEH9QhMU+?= =?us-ascii?Q?iY0j+qtCbv/CzwrmtYgkYDH2bAazs32LVtuXIBs2KD3uXZD2XlRUTgxBCXP0?= =?us-ascii?Q?OiS3JFfpYzV74uBvy91iaawScf6zaLGuT1Yo26fm+vVfSBua6EuFZi49vBrr?= =?us-ascii?Q?Jopo51CB2dor+hSyEJIxEp0qGnDOeNky45xox+0oUqE+E9LcJFOlde3wSKkK?= =?us-ascii?Q?4Zc3PksY0g1p4ntZmZXUGzFXCSnQn/fhizo+EsU2kkTBv1j508oYGHXj9hOk?= =?us-ascii?Q?/gzaPLVWzSCaIpsjnnvH4xxm4gtgLJ4fcjpeizyS5+mmdh2kpi3vGXfVNFpt?= =?us-ascii?Q?K0Mm42HUWOZIuw1D/I6dXYKPGGXU+uNteqYk6nMJLxpHUJYHxJgES6plJv/M?= =?us-ascii?Q?FBd16BEaoMUK2NsUushhk+7hzwI+OY6TPopSTPW6G22vEfkZqSPfAuVmO8I2?= =?us-ascii?Q?0n2G7qqn?=
x-ms-exchange-transport-forked: True
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: BYAPR05MB5974.namprd05.prod.outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 120d507b-12f0-4a56-72aa-08d8bedd2a93
X-MS-Exchange-CrossTenant-originalarrivaltime: 22 Jan 2021 13:53:58.3521 (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: 9AxSzVXeMqWXP2f6cpc3X/AlX/rMtjG5XJzcwuOKiO4sXARFzkm1PFOhTrzR1eYY3WIjBgo0H2NK6D8V6YaA8w==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ0PR05MB7246
X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.343, 18.0.737 definitions=2021-01-22_09:2021-01-21, 2021-01-22 signatures=0
X-Proofpoint-Spam-Details: rule=outbound_spam_notspam policy=outbound_spam score=0 mlxscore=0 phishscore=0 impostorscore=0 clxscore=1011 lowpriorityscore=0 bulkscore=0 priorityscore=1501 malwarescore=0 suspectscore=0 mlxlogscore=999 spamscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2101220076
Archived-At: <https://mailarchive.ietf.org/arch/msg/pim/lxQNg9V944jeVEkdf25-fHdQRI4>
Subject: Re: [pim] pim wg adoption call for draft-chen-pim-srv6-p2mp-path-01
X-BeenThere: pim@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Protocol Independent Multicast <pim.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/pim>, <mailto:pim-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/pim/>
List-Post: <mailto:pim@ietf.org>
List-Help: <mailto:pim-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/pim>, <mailto:pim-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 22 Jan 2021 13:54:18 -0000

I don't see a consensus on this yet on the mailing list.

It would help if a specific illustration of SRv6 header with SRHs to encode the following tree of 4 leaves and 3 replication points (from the draft itself):

                      [L1]                  R Ingress/Root
                      /                    Li Egress/Leaf
                     /                     Pi Transit Node
                    /
                  [P2]------[L2]
                  /
                 /
                /
     [R]------[P1]                [L3]
                \                /
                 \              /
                  \            /
                  [P3]------[P4]------[L4]

            Figure 1: SR P2MP Path from R to L1, L2, L3 and L4

In other words, translate <P1-m, P2-m, P3-m, L1-m, L2-m, P4-m, L3-m, L4-m> into a real IPv6 header with multiple IPv6 addresses in the SRH (using the 40-bit uSID that Huaimo mentioned), and calculate the header size.

Jeffrey

-----Original Message-----
From: pim <pim-bounces@ietf.org> On Behalf Of wangyali
Sent: Friday, January 22, 2021 5:05 AM
To: Stig Venaas <stig@venaas.com>om>; pim@ietf.org
Subject: Re: [pim] pim wg adoption call for draft-chen-pim-srv6-p2mp-path-01

[External Email. Be cautious of content]


Hi all,

Explicit Multicast path with SRv6 is an interesting topic. The tradeoff of packet overhead has been clearly discussed in the ML. Support WG adoption.

Best regards,
Yali

-----Original Message-----
From: pim [mailto:pim-bounces@ietf.org] On Behalf Of Stig Venaas
Sent: Tuesday, January 12, 2021 3:54 AM
To: pim@ietf.org
Subject: [pim] pim wg adoption call for draft-chen-pim-srv6-p2mp-path-01

Hi all

We discussed the draft draft-chen-pim-srv6-p2mp-path-01 in the last wg meeting. We did do an adoption call in the meeting, but we also would like to get input on the mailing list.

Please respond by January 25th whether you believe this document should be adopted.
The document can be found at
https://urldefense.com/v3/__https://tools.ietf.org/html/draft-chen-pim-srv6-p2mp-path-01__;!!NEt6yMaO-gk!VSgYDCLf6UPdJ2QkgsJqOBJFepRrAUZ6R6YbriTZxkjO1TtMMrciWjnBDZhPwVL3$

Regards,
Stig

_______________________________________________
pim mailing list
pim@ietf.org
https://urldefense.com/v3/__https://www.ietf.org/mailman/listinfo/pim__;!!NEt6yMaO-gk!VSgYDCLf6UPdJ2QkgsJqOBJFepRrAUZ6R6YbriTZxkjO1TtMMrciWjnBDTmCR2Xr$

_______________________________________________
pim mailing list
pim@ietf.org
https://urldefense.com/v3/__https://www.ietf.org/mailman/listinfo/pim__;!!NEt6yMaO-gk!VSgYDCLf6UPdJ2QkgsJqOBJFepRrAUZ6R6YbriTZxkjO1TtMMrciWjnBDTmCR2Xr$

Juniper Business Use Only