Re: [core] WGLC on draft-ietf-core-senml-data-ct-02

Thomas Fossati <Thomas.Fossati@arm.com> Tue, 18 August 2020 19:28 UTC

Return-Path: <Thomas.Fossati@arm.com>
X-Original-To: core@ietfa.amsl.com
Delivered-To: core@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5496C3A0AD9 for <core@ietfa.amsl.com>; Tue, 18 Aug 2020 12:28:58 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.901
X-Spam-Level:
X-Spam-Status: No, score=-1.901 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_MSPIKE_H2=-0.001, SPF_PASS=-0.001, UNPARSEABLE_RELAY=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=armh.onmicrosoft.com header.b=RY/5brxu; dkim=pass (1024-bit key) header.d=armh.onmicrosoft.com header.b=RY/5brxu
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 AoqKcYTkpclm for <core@ietfa.amsl.com>; Tue, 18 Aug 2020 12:28:56 -0700 (PDT)
Received: from EUR03-DB5-obe.outbound.protection.outlook.com (mail-eopbgr40078.outbound.protection.outlook.com [40.107.4.78]) (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 5AFC43A0ABB for <core@ietf.org>; Tue, 18 Aug 2020 12:28:55 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=armh.onmicrosoft.com; s=selector2-armh-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=31gMCn81NTrB5LzJ6zJKUmMeanGFSNGBZRf2rjEf+tw=; b=RY/5brxufGlzON69h6le5g2bKiNgOu8Nbse4/GSt8EAO+kv8ZvsblPo0PLHaMsjdnVvAEYB3IWDBa3D3VHNZ/RWtRulsPOtBBXOz920RfRhkPw4Uo7rGPZ7JxbmX2OCt3NQbDoW47UdK1ed6Xdu+IGhrPprVYm+kgXgP76r3yHU=
Received: from DB8PR04CA0027.eurprd04.prod.outlook.com (2603:10a6:10:110::37) by AM6PR08MB5000.eurprd08.prod.outlook.com (2603:10a6:20b:e6::24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3283.18; Tue, 18 Aug 2020 19:28:53 +0000
Received: from DB5EUR03FT031.eop-EUR03.prod.protection.outlook.com (2603:10a6:10:110:cafe::16) by DB8PR04CA0027.outlook.office365.com (2603:10a6:10:110::37) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3305.24 via Frontend Transport; Tue, 18 Aug 2020 19:28:53 +0000
X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 63.35.35.123) smtp.mailfrom=arm.com; ietf.org; dkim=pass (signature was verified) header.d=armh.onmicrosoft.com;ietf.org; dmarc=bestguesspass action=none header.from=arm.com;
Received-SPF: Pass (protection.outlook.com: domain of arm.com designates 63.35.35.123 as permitted sender) receiver=protection.outlook.com; client-ip=63.35.35.123; helo=64aa7808-outbound-1.mta.getcheckrecipient.com;
Received: from 64aa7808-outbound-1.mta.getcheckrecipient.com (63.35.35.123) by DB5EUR03FT031.mail.protection.outlook.com (10.152.20.142) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3305.24 via Frontend Transport; Tue, 18 Aug 2020 19:28:52 +0000
Received: ("Tessian outbound e8cdb8c6f386:v64"); Tue, 18 Aug 2020 19:28:52 +0000
X-CheckRecipientChecked: true
X-CR-MTA-CID: ad5f9b15bf3fbb85
X-CR-MTA-TID: 64aa7808
Received: from bd18fff71e55.2 by 64aa7808-outbound-1.mta.getcheckrecipient.com id B5EA0DF4-3AB2-4C28-AC9A-1FE9BCFF79E3.1; Tue, 18 Aug 2020 19:28:47 +0000
Received: from EUR02-AM5-obe.outbound.protection.outlook.com by 64aa7808-outbound-1.mta.getcheckrecipient.com with ESMTPS id bd18fff71e55.2 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384); Tue, 18 Aug 2020 19:28:47 +0000
ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=n2po2x0qzQBkIj7cy+JGSgLieUfCcUzKU/OdDr053pQ9mYIWWl5TbEKABjn0ZEYcDbVsDVMlrYJU3en9OLNPWzK9t5SmSwYATXs0UC0ore4DG1wAXh7jqgLYDJk1CbdAmbe1EYh+PBPEDtpNmLyH5n7oQjkfQ3IThSm9mR8I1n8t+nY/UN3f1zfK9UHfCWiptKimzcAlzmV8DkPYAJCPbhfh1uaWGmu75OY2250JIXwaoncND9oH13DQ3WGg/5Q7iwutD9EJ3yic2GgRXeaH9VvHhXWSzR3zdTfKKB7IN+oaCwKrOCMDtxcm23eoKX9TIpiT2ngYcVv36aqaKDngag==
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=31gMCn81NTrB5LzJ6zJKUmMeanGFSNGBZRf2rjEf+tw=; b=hthZ3dLToxd5tqtFxkJQ1CAfvBquwdUZ6SwQ9hOW1EAtC4SuZPWg3oxJzOTAXH8avKBWDmvkbZghjAR59LLwvyvIV0hYfdvEuGywbUOeDnfUCV9fNnuH/9sFmnCiyC1QWZqZmrXYOqzdS5+zTrv1kimZEFRlHVIH/BiGeu4WhKLinB2wvP4Q7OSVbismra1/o1m18hjlW2wwnuXIFL/5MRG7hPNPj3NjGVVL2hmA99LbbsVjHgrC/L9t6hLr3ySHkc4HdjrEuaQJvBCX7t0I33wzdsFYFUQEkSAG0Lu0+ebuM/T2B4D9eGuO2CXjCipFbf+IB+cJvbz3I5BbyHgZOQ==
ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=arm.com; dmarc=pass action=none header.from=arm.com; dkim=pass header.d=arm.com; arc=none
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=armh.onmicrosoft.com; s=selector2-armh-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=31gMCn81NTrB5LzJ6zJKUmMeanGFSNGBZRf2rjEf+tw=; b=RY/5brxufGlzON69h6le5g2bKiNgOu8Nbse4/GSt8EAO+kv8ZvsblPo0PLHaMsjdnVvAEYB3IWDBa3D3VHNZ/RWtRulsPOtBBXOz920RfRhkPw4Uo7rGPZ7JxbmX2OCt3NQbDoW47UdK1ed6Xdu+IGhrPprVYm+kgXgP76r3yHU=
Received: from AM6PR08MB4231.eurprd08.prod.outlook.com (2603:10a6:20b:73::23) by AM5PR0802MB2562.eurprd08.prod.outlook.com (2603:10a6:203:a1::23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3283.20; Tue, 18 Aug 2020 19:28:46 +0000
Received: from AM6PR08MB4231.eurprd08.prod.outlook.com ([fe80::459b:bcf3:b888:c906]) by AM6PR08MB4231.eurprd08.prod.outlook.com ([fe80::459b:bcf3:b888:c906%6]) with mapi id 15.20.3283.028; Tue, 18 Aug 2020 19:28:46 +0000
From: Thomas Fossati <Thomas.Fossati@arm.com>
To: Jaime Jiménez <jaime@iki.fi>, "core@ietf.org" <core@ietf.org>
Thread-Topic: [core] WGLC on draft-ietf-core-senml-data-ct-02
Thread-Index: AQHWZdAsCa4rxFgqy0uqoB2vd/JsSqk+cLaA
Date: Tue, 18 Aug 2020 19:28:46 +0000
Message-ID: <ACF266BD-8161-4743-984A-5892137BEA4A@arm.com>
References: <bd57e980-b21c-4f43-8b26-254bcbc57ae6@www.fastmail.com>
In-Reply-To: <bd57e980-b21c-4f43-8b26-254bcbc57ae6@www.fastmail.com>
Accept-Language: en-GB, en-US
Content-Language: en-GB
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
user-agent: Microsoft-MacOutlook/16.39.20071300
Authentication-Results-Original: iki.fi; dkim=none (message not signed) header.d=none;iki.fi; dmarc=none action=none header.from=arm.com;
x-originating-ip: [82.11.185.80]
x-ms-publictraffictype: Email
X-MS-Office365-Filtering-HT: Tenant
X-MS-Office365-Filtering-Correlation-Id: 8e03ff78-df3f-4390-0ff3-08d843acf102
x-ms-traffictypediagnostic: AM5PR0802MB2562:|AM6PR08MB5000:
x-ms-exchange-transport-forked: True
X-Microsoft-Antispam-PRVS: <AM6PR08MB5000EE15E1C38A47B85D19659C5C0@AM6PR08MB5000.eurprd08.prod.outlook.com>
x-checkrecipientrouted: true
nodisclaimer: true
x-ms-oob-tlc-oobclassifiers: OLM:8882;OLM:10000;
X-MS-Exchange-SenderADCheck: 1
X-Microsoft-Antispam-Untrusted: BCL:0;
X-Microsoft-Antispam-Message-Info-Original: xaQvY9iVrarn9sIolpzHyyNXC1TmtHexfU0ZFjMyLZ43bWk4T0AV9MyX3/eoDCaPUgS0WEe7mj6/ck+JzIOXVN0jkVSHsCWBdU91Rlnh9alj7EMU/QVpKMO6lSd6czU39imSMj+L8XmfZRos4MaYni/4eiNFDpoBGbyn6mQMNnmUwP3jq7u8VNzITDP52Itubpw8p7lRRfJ+6zkNkqyo6Hjrjm65jv54yiXOO+HlWod/SXBFNPIKNoorZZ1j+6mEczYV4nWQmG6DV+p3c/5gG/sEigQWUTm4XFPpgRDlu+u405XXpUunIP1w9EI2bF8LkEVgizO8XSGzgv24PibKRQ==
X-Forefront-Antispam-Report-Untrusted: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:AM6PR08MB4231.eurprd08.prod.outlook.com; PTR:; CAT:NONE; SFS:(4636009)(366004)(39850400004)(396003)(346002)(136003)(376002)(5660300002)(26005)(66574015)(86362001)(2906002)(4326008)(8676002)(71200400001)(2616005)(478600001)(186003)(6512007)(66556008)(6506007)(66476007)(66446008)(76116006)(83380400001)(8936002)(66946007)(91956017)(33656002)(64756008)(316002)(110136005)(36756003)(6486002); DIR:OUT; SFP:1101;
x-ms-exchange-antispam-messagedata: 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
Content-Type: text/plain; charset="utf-8"
Content-ID: <BA70C31940E38641AC2F7F78680A5900@eurprd08.prod.outlook.com>
Content-Transfer-Encoding: base64
MIME-Version: 1.0
X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM5PR0802MB2562
Original-Authentication-Results: iki.fi; dkim=none (message not signed) header.d=none;iki.fi; dmarc=none action=none header.from=arm.com;
X-EOPAttributedMessage: 0
X-MS-Exchange-Transport-CrossTenantHeadersStripped: DB5EUR03FT031.eop-EUR03.prod.protection.outlook.com
X-MS-Office365-Filtering-Correlation-Id-Prvs: d7b294f4-a2b6-4064-7ae8-08d843aced44
X-Microsoft-Antispam: BCL:0;
X-Microsoft-Antispam-Message-Info: WRPeeZiJhMeq3sDAwE5J3IWnL0Lavz3l3Qwww0fGqid0CH+r7RnQhk4vLTaaCTdYxoNCBINffKghynOZrsUKglfEESU5cRMgshYSEnX/UtgxL5t24L/j4E0j6S2a5ueNGvhZiwUBHo9LeFL8MqjaaD6TW9O9A39d/YhlXWm98FmTm+HfJ5d4VlIUKFox1aoblX4lXVOfehGslXcMP0kuh5U/qZtzKZjRHWRSqisHW1/ma74CmdaesVMxYEcpe81Zc/0tgsI3kzRBziErlGv0gTGaNiGnKsFkBtmuH7FEH3FKZd6uw81PnHsvnJPIyZVjjcqPqArkL+B++tTBaMDWGBQOV0bS21B76YiscePZRBYlR1rYci/rvr+VpgaHlOnLMNGBhQ1ajodmmy7C6BSTiA==
X-Forefront-Antispam-Report: CIP:63.35.35.123; CTRY:IE; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:64aa7808-outbound-1.mta.getcheckrecipient.com; PTR:ec2-63-35-35-123.eu-west-1.compute.amazonaws.com; CAT:NONE; SFS:(4636009)(136003)(346002)(396003)(39850400004)(376002)(46966005)(66574015)(316002)(33656002)(2616005)(110136005)(356005)(336012)(82310400002)(83380400001)(70206006)(5660300002)(8676002)(86362001)(70586007)(82740400003)(81166007)(4326008)(26005)(2906002)(47076004)(6506007)(478600001)(6512007)(36756003)(186003)(8936002)(6486002); DIR:OUT; SFP:1101;
X-OriginatorOrg: arm.com
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Aug 2020 19:28:52.9745 (UTC)
X-MS-Exchange-CrossTenant-Network-Message-Id: 8e03ff78-df3f-4390-0ff3-08d843acf102
X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d
X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d; Ip=[63.35.35.123]; Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com]
X-MS-Exchange-CrossTenant-AuthSource: DB5EUR03FT031.eop-EUR03.prod.protection.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Anonymous
X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem
X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM6PR08MB5000
Archived-At: <https://mailarchive.ietf.org/arch/msg/core/LC20LDt2N7VBdTl7oRFSax8DtR8>
Subject: Re: [core] WGLC on draft-ietf-core-senml-data-ct-02
X-BeenThere: core@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" <core.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/core>, <mailto:core-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/core/>
List-Post: <mailto:core@ietf.org>
List-Help: <mailto:core-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/core>, <mailto:core-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 18 Aug 2020 19:28:58 -0000

Hi Ari, Carsten,

I have reviewed draft-ietf-core-senml-data-ct-02 and overall it looks
good to me.  I've left a few annotations below.

Cheers!

* Section 1, first sentence:
    * One of "various" or "different" look redundant to me.
* Section 2, last sentence:
    * I-D.bormann-core-media-content-type-format is not just very
      helpful, it also contains the definition of Content-Coding
      which is not found elsewhere AFAIK.
* Section 3, first para:
    * you might want to reorganise the second sentence (starting with
      "the Content-Format indication") to make it more readable.
* Section 3, third para:
    * "[...] appended to the Content Type _value_ (media type [...]"
* Section 3, last sentence:
    * Might be restructured for readability; one suggestion: "If no "@"
      sign is present outside any media type parameters, the consumer
      can assume that no encoding transformation has been applied to the
      representation."
* Section 6:
    * Maybe add a mention to the risks associated with compression
      content codings (zip bomb, etc.)"
* Section 7:
    * Not sure but, would it be worth adding a note regarding the
      formatting rules (i.e., an explicit pointer to Section 3)?
* Section 8.1:
    * Why is CBOR normative?
    * Why is the SenML registry a normative reference?







IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.