Re: [pim] draft-ietf-6lo-multicast-registration-08 replacing MLD

"Pascal Thubert (pthubert)" <pthubert@cisco.com> Tue, 09 August 2022 10:30 UTC

Return-Path: <pthubert@cisco.com>
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 65D79C15C525; Tue, 9 Aug 2022 03:30:51 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -9.606
X-Spam-Level:
X-Spam-Status: No, score=-9.606 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, RCVD_IN_ZEN_BLOCKED_OPENDNS=0.001, SPF_NONE=0.001, T_SCC_BODY_TEXT_LINE=-0.01, URIBL_BLOCKED=0.001, URIBL_ZEN_BLOCKED_OPENDNS=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=UZQ6z7pE; dkim=pass (1024-bit key) header.d=cisco.onmicrosoft.com header.b=fzj2Gzep
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 FRP0A47ifOSn; Tue, 9 Aug 2022 03:30:47 -0700 (PDT)
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 43AD6C15C518; Tue, 9 Aug 2022 03:30:47 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=3178; q=dns/txt; s=iport; t=1660041047; x=1661250647; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-transfer-encoding:mime-version; bh=9L5JXAeIiWfeBYJu6cOLRCb0jYGtSlg7KEMb1zzkKWo=; b=UZQ6z7pEyDFQ73gdvFkdHuL9UUG7fKeKwRO3C92AkrwUwZvGtBAJpOW4 382dQJE2Mwd4gbGQ1bwhj508NsPlujPpT+jakiah9ta1CMjXuRC8q61WC fRkzb/4tDZqoU6JlDwqEf/KfborZZFGkzm0SeETTJ107bgB+6LGMh3nv6 Y=;
X-IPAS-Result: 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
IronPort-PHdr: A9a23:uA/kNRK5nLmZl2iT5dmcuWEyDhhOgF28FgIW659yjbVIf+zj+pn5J 0XQ6L1ri0OBRoTU7f9Iyo+0+6DtUGAN+9CN5XYFdpEfWxoMk85DmQsmDYaMAlH6K/i/aSs8E YxCWVZp8mv9P1JSHZP1ZkbZpTu56jtBcig=
IronPort-Data: A9a23:vsgR5KsPN0ejWlBm2urR3vbV2ufnVLVeMUV32f8akzHdYApBsoF/q tZmKWiDPK3eYzf2LdhyO4Xip0oC6sPdztJqHQE//CE2Qn8WgMeUXt7xwmUckM+xwmwvaGo9s q3yv/GZdJhcokf0/0vrav67xZVF/fngqoDUUIYoAQgsA14/IMsdoUg7wbRh0tY52YHR7z6l4 LseneWOYDdJ5BYsWo4kw/rrRMRH5amaVJsw5zTSVNgT1LPsvyB94KE3ecldG0DFrrx8RYZWc QpsIIaRpQs19z91Yj+sfy2SnkciGtY+NiDW4pZatjTLbhVq/kQPPqgH2PU0RkVbiwW5lu1I9 JZ974yyVit0Jr/+l7FIO/VYO3kW0axu8bvDJz20ttaeih2AeHr3yPIoB0YzVWEa0r8oWicVq 7pBc3ZUMknra+GemNpXTsF0msQ+JsTxIKsUu2prynfSCvNOrZXrEv+QuIAIjWlg7ixINeyAQ sA2NGFXVzmDezFLGHk1JZlvps790xETdBUB+A7K+sLb+VP71A10+LngLNSTfcaFLe1chEuEr 2TPuWX0Hh8yO9mWyD7D+XWp7sfDhyr1RMcTGaG2s6BuhxiW22gPCRYfTkf+u/S2i1WiQdtDK ksS0isjsaZ081akJvGjWxqQoXOYsFgbQdU4O/Ym6Q6l1KfS6g+CQGMDS1Z8hMcOvcsyQ3kh0 UWE2oOvDj10u7rTQnWYnluJkd+sEQcXIW8yVSY5dDdG04Pzop4f0wrdfNk2RcZZkebJMT33x jmLqg03iLMSkdMH2s2HEbbv3mjESn/hE1Bd2+nHYo62xlgiPdf6OeRE/XCevKgec9fAJrWUl CJc8/Vy+tziGn1keMalaeEJEbfBCx2tb2CE2AUH83XMC12QF5OLdIRU5nR1I11kd5ZCcj7ya 0iVsgRUjHOyAJdIRfInC25SI513pUQFKTgDfqqLBjapSsMqHDJrBAk0OSatM5nFySDAa50XN 5aBatqLBn0HE6lhxzfeb75DjO56lntinjODFM6TI/GbPVy2OSH9pVAtbQvmUwzFxP/sTPj9q owGbJLal32zrsWnOHGNmWLsEbz6BSFrWc+pwyCmXuWCOQFhUHowEOPcxKhJRmCWt/o9qws8x VnkAhUw4AOm3RXvcFzWAlg+OOKHdcsu9hoTYH1zVX72gCJLSdj0s88im24fIONPGBpLl6AkF pHouqyoX5xyd9gw02hGNcet99MzLHxGR2umZkKYXdT2RLY4LyShxzMuVlKHGPUmZsZvifYDn g==
IronPort-HdrOrdr: A9a23:CBBU66tTy69QjuNg33S87T5f7skC3YMji2hC6mlwRA09TyXGra 6TdaUguiMc1gx8ZJh5o6H+BEGBKUmskaKdkrNhQ4tKOzOW91dATbsSobcKpgeAJ8SQzJ8k6U /vGZIOc+EYYWIK7/oSpTPIb+rIo+P3vpxA592utUuFJDsCA8oLgmcJaTpzUHcGOTWubqBJc6 Z0k/A33gZIDk5nCPhTaEN1OtTrlpnurtbLcBQGDxko5E2lljWz8oP3FBCew1M3Ty5P6a1Kyx mFryXJooGY992rwB7V0GHeq75MnsH699dFDMuQzuAINzTXjBqybogJYczDgNl1mpDt1L8Zqq iIn/4SBbU215oXRBDznfLZ4Xij7N/p0Q6l9bbXuwq7nSWzfkNKNyMIv/MoTvKe0Tt5gDm5u5 g7hV5wcPFsfEj9dW3Glqv1fgAvmUyurXU4l+kPy3RZTIsFcbdU6ZcS5UVPDf47bWnHAa0cYa BT5fvnlb5rWELfa2qcsnhkwdSqUHh2FhCaQlIassjQ1zRNhnh2w0YR2cRaxx47hd8AYogB4/ 6BPrVjlblIQMNTZaVhBP0ZSc/yDmDWWxrDPG+bPFyiHqAaPHDGrYLx/dwOlauXUY1NyIF3lI XKUVteu2J3c0XyCdeW1JkO6RzJSHXVZ0Wa9iif3ekPhlTRfsufDcTYciFdryKJmYRqPvHm
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-AV: E=Sophos;i="5.93,224,1654560000"; d="scan'208";a="922578968"
Received: from alln-core-8.cisco.com ([173.36.13.141]) by alln-iport-5.cisco.com with ESMTP/TLS/DHE-RSA-SEED-SHA; 09 Aug 2022 10:30:46 +0000
Received: from mail.cisco.com (xfe-rtp-004.cisco.com [64.101.210.234]) by alln-core-8.cisco.com (8.15.2/8.15.2) with ESMTPS id 279AUjr1014625 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=OK); Tue, 9 Aug 2022 10:30:45 GMT
Received: from xfe-aln-001.cisco.com (173.37.135.121) by xfe-rtp-004.cisco.com (64.101.210.234) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.14; Tue, 9 Aug 2022 06:30:44 -0400
Received: from NAM10-BN7-obe.outbound.protection.outlook.com (173.37.151.57) by xfe-aln-001.cisco.com (173.37.135.121) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.14 via Frontend Transport; Tue, 9 Aug 2022 05:30:44 -0500
ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=LylR1fzTpynuJSEGgzCq+UTfoV1VPefXLaXmGuq3hcm1MfnXBjCBLYiXyql1XUrMPJDpecShT8rrSvt2ko90oBYN17Z8bQCCQ11dQglqKCN8inR6Pd1L45HhB0uSGD68S3nfJZSVlFd2JQd69JJmXKF+eMa6mB2auxwFfYe0ZBO/49SoaH6w+p7P2RizlX98MsZpnmhgmbUKxMikXdAmLuI3bDhpFFy6k7AfmDDddXVo9Ojvcqz0l8ZBqz9aLWS5Iq6+ialk91owytT/c282vT56z3byQx8rBINxGO6km5QkQBav68mMygrWjz4w4rhXro6+iQOVTS84OTys4CmsCg==
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=9L5JXAeIiWfeBYJu6cOLRCb0jYGtSlg7KEMb1zzkKWo=; b=LJ90hlAZJOkWnEPncUMJx6IChrPkjll7+kjB86C0N1ArlUjajhrcmLSmzBMAw+Tcy9pZIsRYU0yMtN7L9NeNHVCf48mJr6LfE7rc7z28m9jgmGW7N6fJgcP6RMdtq0pjm6LGYip59TS2YnWFG/wCwD3TpFRQpu6yRN0nzivq6gPCfXYax+CJNaUpF38yaD8D0ZwKbDxoEBEyPOIlwbXFhO3rfG0PctYTBasM5hSTzGGyVKeV39si6cru6rjXB4/B/7pW8k1v55L9hGKyppDfff61js4x6r5O6IJEeXDmZ3vHXTBvjDozY9YNUrmF2lVquTCbmYdzYZPIPXak9KdoLA==
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=9L5JXAeIiWfeBYJu6cOLRCb0jYGtSlg7KEMb1zzkKWo=; b=fzj2GzepOwSuvNdZz4pfwqdBIJdZZLbnSfEBJ/TE8QdEMMFNggyCnBxa9cHoqcqAkLY2TtJzXS6aLz+uahLf9kHWeK6uuHbBxjdbbjFFfvnsfHhtb70/PCNkcgeFIMySFwwbuF0TyMtwd9UumouRWOS6oyJ4YhUhIPIF9NK5uuw=
Received: from CO1PR11MB4881.namprd11.prod.outlook.com (2603:10b6:303:91::20) by PH7PR11MB6607.namprd11.prod.outlook.com (2603:10b6:510:1b2::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5504.14; Tue, 9 Aug 2022 10:30:42 +0000
Received: from CO1PR11MB4881.namprd11.prod.outlook.com ([fe80::ecc3:1b8d:4d31:ff3c]) by CO1PR11MB4881.namprd11.prod.outlook.com ([fe80::ecc3:1b8d:4d31:ff3c%3]) with mapi id 15.20.5504.020; Tue, 9 Aug 2022 10:30:42 +0000
From: "Pascal Thubert (pthubert)" <pthubert@cisco.com>
To: Stig Venaas <stig@venaas.com>, "6lo@ietf.org" <6lo@ietf.org>, "draft-ietf-6lo-multicast-registration@ietf.org" <draft-ietf-6lo-multicast-registration@ietf.org>
CC: Alvaro Retana <aretana.ietf@gmail.com>, "pim@ietf.org" <pim@ietf.org>
Thread-Topic: draft-ietf-6lo-multicast-registration-08 replacing MLD
Thread-Index: AQHYq0tVmodWKDA6HUaCkqQao8Xxpa2mXA4A
Date: Tue, 09 Aug 2022 10:30:41 +0000
Deferred-Delivery: Tue, 9 Aug 2022 10:30:21 +0000
Message-ID: <CO1PR11MB4881A0F08D9967EF3A702241D8629@CO1PR11MB4881.namprd11.prod.outlook.com>
References: <CAHANBtLwT5gjApRSh79RwVFMsiEmD_R78RSeSxeR1pznpfTdKQ@mail.gmail.com>
In-Reply-To: <CAHANBtLwT5gjApRSh79RwVFMsiEmD_R78RSeSxeR1pznpfTdKQ@mail.gmail.com>
Accept-Language: fr-FR, en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=cisco.com;
x-ms-publictraffictype: Email
x-ms-office365-filtering-correlation-id: 57a72745-7a70-4a4f-dd84-08da79f23638
x-ms-traffictypediagnostic: PH7PR11MB6607: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:CO1PR11MB4881.namprd11.prod.outlook.com; PTR:; CAT:NONE; SFS:(13230016)(4636009)(136003)(396003)(346002)(39860400002)(366004)(376002)(76116006)(66476007)(122000001)(66946007)(8936002)(66556008)(52536014)(186003)(64756008)(38100700002)(38070700005)(4326008)(66446008)(8676002)(5660300002)(66574015)(478600001)(55016003)(9686003)(6506007)(71200400001)(7696005)(26005)(2906002)(53546011)(316002)(83380400001)(54906003)(41300700001)(110136005)(33656002)(86362001); DIR:OUT; SFP:1101;
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-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: CO1PR11MB4881.namprd11.prod.outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 57a72745-7a70-4a4f-dd84-08da79f23638
X-MS-Exchange-CrossTenant-originalarrivaltime: 09 Aug 2022 10:30:42.4777 (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: 9cgDiRHO9mQIo28+uy1hQfBwz5Mghd8hvsBz1RZfebRhKfrAKCvYFdQ31o/vfhBBnhcs3Z40ZTVzaiW5EdS1ng==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR11MB6607
X-OriginatorOrg: cisco.com
X-Outbound-SMTP-Client: 64.101.210.234, xfe-rtp-004.cisco.com
X-Outbound-Node: alln-core-8.cisco.com
Archived-At: <https://mailarchive.ietf.org/arch/msg/pim/BXPkxDd_XkvlWaCQwv1uOfyiJJk>
Subject: Re: [pim] draft-ietf-6lo-multicast-registration-08 replacing MLD
X-BeenThere: pim@ietf.org
X-Mailman-Version: 2.1.39
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: Tue, 09 Aug 2022 10:30:51 -0000

Hello Stig

The rationale behind a new protocol is, same as all 6lo work, power efficiency in IoT space. Now, IoT is a precursor to moving more device to the green side. So your point stands. Either we are specific that in the target space there is no MLD at all, or we talk interactions between the two. 

IoT devices will typically sleep more than even cats do. They cannot stay awake at all times just in case they are be polled for a report. They cannot store much code either. The proposal is a simple extension to existing code, since the change we're doing here was already done for classical IPv6 ND with RFC 8505, 8928 and 8929. RFC 8929 typically isolates the non-broadcast IoT edge from the broadcast backbone. Note that with RFC 8505, IoT devices do not use SNMA so no need for MLD there either.

Now for both ND and MLD, there will be a time of coexistence in the same link. The documents for ND is already long awaited. My suggestion is that that a future document covers both, and the current draft is for non-broadcast IoT links only, no coexistence.

Works?

 Pascal


> -----Original Message-----
> From: Stig Venaas <stig@venaas.com>
> Sent: lundi 8 août 2022 19:21
> To: 6lo@ietf.org; draft-ietf-6lo-multicast-registration@ietf.org
> Cc: Alvaro Retana <aretana.ietf@gmail.com>; pim@ietf.org
> Subject: draft-ietf-6lo-multicast-registration-08 replacing MLD
> 
> Hi 6lo and draft authors
> 
> I have some concerns about this draft replacing MLD for group
> registration.
> 
> Having 2 different protocols for the same thing can be problematic.
> Hosts or routers may need to support both protocols. Is it clear which
> one should be used in different environments? Is there a chance that
> both may be used at the same time in a network? In particular, is there
> a chance that a router may need to simultaneously support both protocols
> on an L3 interface? In that case it must be considered how the two
> protocols interoperate.
> 
> Also, we have been pushing the use of SSM in the IETF for a very long
> time, but this draft only supports ASM since only a group address is
> provided.
> 
> It would be good to have some more info on the need to replace MLD. I
> understand there are concerns about packet loss, limited resources etc.
> 
> Regards,
> Stig