From nobody Thu Apr 1 05:45:47 2021 Return-Path: X-Original-To: core@ietf.org Delivered-To: core@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 308D03A0F3D; Thu, 1 Apr 2021 05:45:46 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: core@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 7.27.0 Auto-Submitted: auto-generated Precedence: bulk Reply-To: core@ietf.org Message-ID: <161728114614.20426.13118764993368528518@ietfa.amsl.com> Date: Thu, 01 Apr 2021 05:45:46 -0700 Archived-At: Subject: [core] I-D Action: draft-ietf-core-oscore-edhoc-00.txt X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.29 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Apr 2021 12:45:46 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Constrained RESTful Environments WG of the IETF. Title : Combining EDHOC and OSCORE Authors : Francesca Palombini Marco Tiloca Rikard Hoeglund Stefan Hristozov Goeran Selander Filename : draft-ietf-core-oscore-edhoc-00.txt Pages : 12 Date : 2021-04-01 Abstract: This document defines an optimization approach for combining the lightweight authenticated key exchange protocol EDHOC run over CoAP with the first subsequent OSCORE transaction. This combination reduces the number of round trips required to set up an OSCORE Security Context and to complete an OSCORE transaction using that Security Context. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-core-oscore-edhoc/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-core-oscore-edhoc-00 https://datatracker.ietf.org/doc/html/draft-ietf-core-oscore-edhoc-00 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Thu Apr 1 05:49:56 2021 Return-Path: X-Original-To: core@ietf.org Delivered-To: core@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id D33ED3A0FD3; Thu, 1 Apr 2021 05:49:54 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: core@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 7.27.0 Auto-Submitted: auto-generated Precedence: bulk Reply-To: core@ietf.org Message-ID: <161728139482.22131.11446877010349689493@ietfa.amsl.com> Date: Thu, 01 Apr 2021 05:49:54 -0700 Archived-At: Subject: [core] I-D Action: draft-ietf-core-observe-multicast-notifications-00.txt X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.29 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Apr 2021 12:49:55 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Constrained RESTful Environments WG of the IETF. Title : Observe Notifications as CoAP Multicast Responses Authors : Marco Tiloca Rikard Hoeglund Christian Amsuess Francesca Palombini Filename : draft-ietf-core-observe-multicast-notifications-00.txt Pages : 68 Date : 2021-04-01 Abstract: The Constrained Application Protocol (CoAP) allows clients to "observe" resources at a server, and receive notifications as unicast responses upon changes of the resource state. In some use cases, such as based on publish-subscribe, it would be convenient for the server to send a single notification addressed to all the clients observing a same target resource. This document updates RFC7252 and RFC7641, and defines how a server sends observe notifications as response messages over multicast, synchronizing all the observers of a same resource on a same shared Token value. Besides, this document defines how Group OSCORE can be used to protect multicast notifications end-to-end between the server and the observer clients. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-core-observe-multicast-notifications/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-core-observe-multicast-notifications-00 https://datatracker.ietf.org/doc/html/draft-ietf-core-observe-multicast-notifications-00 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Sat Apr 3 12:32:06 2021 Return-Path: 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 F27013A1135 for ; Sat, 3 Apr 2021 12:32:03 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.101 X-Spam-Level: X-Spam-Status: No, score=-2.101 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, RCVD_IN_MSPIKE_H2=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=ericsson.com 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 K7ACdgOsausb for ; 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text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Jaime Jimenez via Datatracker To: X-Test-IDTracker: no X-IETF-IDTracker: 7.27.0 Auto-Submitted: auto-generated Precedence: bulk Cc: core-chairs@ietf.org, core@ietf.org, iesg-secretary@ietf.org, jaime@iki.fi Message-ID: <161762565201.3036.2827988114534319057@ietfa.amsl.com> Date: Mon, 05 Apr 2021 05:27:32 -0700 Archived-At: Subject: [core] Publication has been requested for draft-ietf-core-senml-versions-02 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.29 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 05 Apr 2021 12:27:32 -0000 Jaime Jimenez has requested publication of draft-ietf-core-senml-versions-02 as Proposed Standard on behalf of the CORE working group. 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(amavisd-new, port 10024) with ESMTP id IYiBal3Z9-6o; Tue, 6 Apr 2021 08:02:16 -0700 (PDT) Received: from relais-inet.orange.com (relais-inet.orange.com [80.12.66.39]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 51ED03A2349; Tue, 6 Apr 2021 08:02:15 -0700 (PDT) Received: from opfedar02.francetelecom.fr (unknown [xx.xx.xx.4]) by opfedar26.francetelecom.fr (ESMTP service) with ESMTP id 4FF9jb1tYWzFqLp; Tue, 6 Apr 2021 17:02:11 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=orange.com; s=ORANGE001; t=1617721331; bh=Qy8mmwPPcg19JyP3zQoawVhTg4L81mR46QsOHJB5ByE=; h=From:To:Subject:Date:Message-ID:Content-Type: Content-Transfer-Encoding:MIME-Version; b=fXVokyBuDsg6vbqEmvetnOelbV1im0XMiTPTc5KfRa8JKPnYtvwCvTROTaC5MhQrP 7vbFPV8rkREr2vHG0OavhaIt4oERLZpGMYaXSdiLFOmwsi3VR9DQMPMp/kW0w+XRsu Pp3wDuAjmM0AWij1+Uw+TIakHhJCHZ6oJxm5BgKKgi+KIBbKDW3W5PiUqJ1A+2+/2c 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Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Subject: Re: [core] AD review of draft-ietf-core-new-block-09 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 06 Apr 2021 15:02:21 -0000 SGkgRnJhbmNlc2NhLCANCg0KVGhhbmsgeW91IGZvciB0aGUgcmV2aWV3LiANCg0KQ2hhbmdlcyBj YW4gYmUgdHJhY2tlZCBhdDogaHR0cHM6Ly90aW55dXJsLmNvbS9uZXctYmxvY2stbGF0ZXN0Lg0K DQpQbGVhc2UgZmluZCBvdXIgcmVwbGllcyBpbmxpbmUuIA0KDQpDaGVlcnMsDQpKb24gJiBNZWQN Cg0KPiAtLS0tLU1lc3NhZ2UgZCdvcmlnaW5lLS0tLS0NCj4gRGXCoDogY29yZSBbbWFpbHRvOmNv cmUtYm91bmNlc0BpZXRmLm9yZ10gRGUgbGEgcGFydCBkZSBGcmFuY2VzY2ENCj4gUGFsb21iaW5p DQo+IEVudm95w6nCoDogc2FtZWRpIDMgYXZyaWwgMjAyMSAyMTozMg0KPiDDgMKgOiBkcmFmdC1p ZXRmLWNvcmUtbmV3LWJsb2NrLTA5LmFsbEBpZXRmLm9yZw0KPiBDY8KgOiBjb3JlQGlldGYub3Jn 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Received: from opfedar00.francetelecom.fr (unknown [xx.xx.xx.11]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by opfedar24.francetelecom.fr (ESMTP service) with ESMTPS id 4FFYH63hXsz5vlG; Wed, 7 Apr 2021 07:44:02 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=orange.com; s=ORANGE001; t=1617774242; bh=SB45M+dy9Fj2741i+HxLN3WpQKAqOKUDuWq2eH0YGWo=; h=From:To:Subject:Date:Message-ID:Content-Type: Content-Transfer-Encoding:MIME-Version; b=EVCsDOc7G09umuP+bJORDi4ANLdcBicJoNwA+gCN/AF/qNKk6SeoXoM3/YEKduWIw 3YrkGmE9KhgkgUf48CgZ68/76XsP/Ebt3A0+HUf2qQwlOnxzfp79zAIHl8SNQMi2eu 6fZTUDQQMLzGA35e93i5HP2M5mz+7zgwA5tQgvCllhWo+Q9YMENAjL2oK+j5xcXIwf L1JSWYkjyqf1ZO0sbnKEfjrfx3KNEFlgAbZH1ahHPVbdy1pGpGgEaOGSM3zCMUaelm 70ED/hECx+eObYhvYWCxyZdEV44OkUpJu+xQWrFKvJOMX9nTaXk/wawtGgvmrVlC6z uIIdnmnmp2hAQ== Received: from Exchangemail-eme6.itn.ftgroup (unknown [xx.xx.13.82]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by opfedar00.francetelecom.fr (ESMTP service) with ESMTPS id 4FFYH62jpKzCqk2; Wed, 7 Apr 2021 07:44:02 +0200 (CEST) From: To: =?iso-8859-1?Q?Christian_Ams=FCss?= CC: "draft-bosh-core-new-block@ietf.org" , "core@ietf.org" Thread-Topic: draft-ietf-core-echo-request-tag (was RE: Request-Tag and Block ID) Thread-Index: AdcrcQDYticQVE/tSK+k69ej3P1F3w== Date: Wed, 7 Apr 2021 05:44:00 +0000 Message-ID: <17244_1617774242_606D46A2_17244_465_1_787AE7BB302AE849A7480A190F8B933035364E5C@OPEXCAUBMA2.corporate.adroot.infra.ftgroup> Accept-Language: fr-FR, en-US Content-Language: fr-FR X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.114.13.247] Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Archived-At: Subject: [core] draft-ietf-core-echo-request-tag (was RE: Request-Tag and Block ID) X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 07 Apr 2021 05:44:13 -0000 Hi Christian, It seems this one was missed when revising draft-ietf-core-echo-request-tag. Can you please fix the text discussed in this thread? Thanks.=20=20=20 Cheers, Med > -----Message d'origine----- > De=A0: Christian Ams=FCss [mailto:christian@amsuess.com] > Envoy=E9=A0: jeudi 11 juin 2020 13:46 > =C0=A0: BOUCADAIR Mohamed TGI/OLN > Cc=A0: draft-bosh-core-new-block@ietf.org; core@ietf.org > Objet=A0: Re: Request-Tag and Block ID >=20 > Hello Med, >=20 > On Thu, Jun 11, 2020 at 11:20:30AM +0000, > mohamed.boucadair@orange.com wrote: > > I would relax those statements. For example, can you please > consider updating statements such as this one: > > > > "The Request-Tag option is only used in requests that > > > > ^^^^ > > carry the Block1 option, and in Block2 requests following > these." > > > > to cover block options as those defined in draft-bosh-core-new- > block. >=20 > While the original understanding of Request-Tag was that it'd only be > necessary where Block1 (or Block3) mode is involved, yesterday's > examples show a use case outside as well. >=20 > The above is not normative text -- you'll note that there is barely > any at all, for all the option's mechanism already follows from being > NoCacheKey. There is normative text for that very case, though it > might be problematic ("MAY be present in request messages that carry > no Block option[...], and MUST be ignored in those.") >=20 > I think it would be topically suitable to relax things a bit here to > ensure applicability with a future Blockwise mechanism. >=20 > Procedurally, as this is post WGLC (but waiting for an updated > version for the writeup), I think I can pull those in (together with > other comments received during and after the WGLC), but will need to > accompany those changes with an explicit mail to the WG informing > everyone of those with detail and rationale. >=20 > > You may also update the terminology section to define block-wise in > a > > more generic manner. >=20 > As an immediate reaction I'm tempted to call those users of Request- > Tag "block-wise transfer or other applications that associate > requests by their cache key where such an association is broken > deliberately by the client". I'll see whether that fits with the rest > of the text, but don't think there's trouble if it does not: For with > Request-Tag preceding Block34, the latter can just state that in > interaction with Request-Tag, > Block34 are treated like Block12. >=20 > Kind regards > Christian >=20 > -- > To use raw power is to make yourself infinitely vulnerable to greater > powers. > -- Bene Gesserit axiom ___________________________________________________________________________= ______________________________________________ Ce message et ses pieces jointes peuvent contenir des informations confiden= tielles ou privilegiees et ne doivent donc pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu= ce message par erreur, veuillez le signaler a l'expediteur et le detruire ainsi que les pieces jointes. Les messages el= ectroniques etant susceptibles d'alteration, Orange decline toute responsabilite si ce message a ete altere, deforme ou = falsifie. Merci. This message and its attachments may contain confidential or privileged inf= ormation that may be protected by law; they should not be distributed, used or copied without authorisation. If you have received this email in error, please notify the sender and dele= te this message and its attachments. As emails may be altered, Orange is not liable for messages that have been = modified, changed or falsified. Thank you. From nobody Fri Apr 9 01:29:41 2021 Return-Path: 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 91A333A17D0 for ; Fri, 9 Apr 2021 01:29:33 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.897 X-Spam-Level: X-Spam-Status: No, score=-1.897 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=unavailable autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=ackl-io.20150623.gappssmtp.com 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 VbupSvhVFJrN for ; Fri, 9 Apr 2021 01:29:27 -0700 (PDT) Received: from mail-io1-xd36.google.com (mail-io1-xd36.google.com [IPv6:2607:f8b0:4864:20::d36]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id A4BB63A17CD for ; Fri, 9 Apr 2021 01:29:27 -0700 (PDT) Received: by mail-io1-xd36.google.com with SMTP id a11so3021249ioo.0 for ; Fri, 09 Apr 2021 01:29:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ackl-io.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=pRzD2ejc0JllcOYMA4q1fGU/6iVm4FSdMWB7uM6XfOA=; b=FGxKog4OdDxO3Tk4yxZsCtVOjsAN8gC2ybgTC8tpamM9wHwuaoWIH+zeF9+qGRcx4S nKs08V3NuEdo1V0NBDQtqBujlxgSBHudRyZd8x7UYUltafm8FB1P6Wlq+oRMnprNeJvK CcC2nucvvkaP+wZHaCJAaDR2ydKM6y2kItGI2q168TK/2pkU9nMa4S16I5064sJztrtS MhFp8NcRiVBKots7OelOHY4caWZPhvqItjgXc50yJ1ZKEyW1FXw25P9uIgLwU3gEGkLA 6HVIm/sMO7yZSrvIJFyN17/kAJTvDdD0t6EwICJerXB9pE/OoK2byC4Y2XZAug3G5GQC 9V0g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=pRzD2ejc0JllcOYMA4q1fGU/6iVm4FSdMWB7uM6XfOA=; b=cG4NN9Lt91fj1/rc+40WmEcfyeyyTLWW9CN2vdwhyKOgXASCt8sizwgOmIdRytN+tq 12ApwJt16dWW+dG9fYFONtNF6vPKMmToVTCrr+unsNKsbGEG1EOv4rN6RjrqNuBnFmqE gjQA8xRjk8AbVoBZb/yGTxLiMZ8ZMGDLuTbW2KeAxU4Oh75aKQD8haQBea0M6jkmaaEa YAnPcuiPWN8U79qcg0NDFQGvpf7LS71hCRqJBU7O43+Pa2sqVDjmSEULJwioIGgLkEy0 Zp28BdMmCYS9U2tp5N1V16A8eb0kX4m2Bbk/q0AN4gG9AWvTC913Q4GX6fSUznjV/uHb 2w6Q== X-Gm-Message-State: AOAM530LzNDp0IHpNIrDwEsBJISGfgB9GyM8kHpBIfhqYtsHDnynAKgN vuQ8zhSTBaqb8OlAif/zbJCSESNYUko9XFqez6JUOw== X-Google-Smtp-Source: ABdhPJz2fzt7+mupENvhYMfjcem4Lp/QQ4IB5qB+23ZdrRa1qWEbHdSm07VNWYtUAPxhiK14XOfl+eL4x0OtOZV6J4c= X-Received: by 2002:a05:6602:2102:: with SMTP id x2mr10927756iox.83.1617956966042; Fri, 09 Apr 2021 01:29:26 -0700 (PDT) MIME-Version: 1.0 References: <161671562340.18744.12200188901217754567@ietfa.amsl.com> <14851067-3EF0-468F-97C7-0EC12A6ED1AC@ericsson.com> In-Reply-To: <14851067-3EF0-468F-97C7-0EC12A6ED1AC@ericsson.com> From: Alexander Pelov Date: Fri, 9 Apr 2021 10:29:14 +0200 Message-ID: To: Francesca Palombini Cc: Xufeng Liu , "yang-doctors@ietf.org" , "core@ietf.org" , "draft-ietf-core-sid.all@ietf.org" , "last-call@ietf.org" Content-Type: multipart/alternative; boundary="0000000000003923c305bf85f697" Archived-At: Subject: Re: [core] Yangdoctors last call review of draft-ietf-core-sid-15 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 09 Apr 2021 08:29:34 -0000 --0000000000003923c305bf85f697 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Dear Xufeng, Thank you for the detailed feedback. We will take into account all the remarks you have made and will modify accordingly. Thank you, Francesca, for following on Xufeng's review. Best regards, Alexander On Fri, Mar 26, 2021 at 5:18 PM Francesca Palombini < francesca.palombini@ericsson.com> wrote: > Xufeng, > > Thank you very much for the detailed review! > > Authors: please address Xufeng's comments together with the other Last > Call comments received. > > Thanks, > Francesca > > =EF=BB=BFOn 26/03/2021, 00:40, "Xufeng Liu via Datatracker" > wrote: > > Reviewer: Xufeng Liu > Review result: Ready with Nits > > This is a review of the YANG module in draft-ietf-core-sid-15. > > Minor Issues, Nits, and Questions: > > 1) This module uses the yang-data extension in RFC8040, which was the > best > choice a few years ago when this draft started. However, RFC8791 has > been > published so that the YANG structure extension is available now. Has > the YANG > structure extension been considered to replace the yang-data extensio= n? > > 2) The container sid-file is missing in the tree diagram in Section 4= . > RFC8340 > specifies the tree format to represent such a yang-data definition. I= f > the YANG > structure extension in RFC8791 is used, RFC8791 describes how the tre= e > diagram > looks like for such a YANG structure. Also, the top container would > not be > needed, because a YANG structure is encoded as a 'container'. > > 3) In the container sid-file, the leaf module-name is optional. What > is the > assumption when it is not specified? It would be beneficial to clarif= y > in the > description statement. > > 4) In the container sid-file, the leaf sid-file-version is optional. > The > description says that this number starts at zero. Let=E2=80=99s say t= hat there > are two > .sid files, one of which does not have the version number and the > other one has > version number 0. Are they the same? If so, would it be better to hav= e > a > default statement with a default value of 0? > > 5) For =E2=80=9Clist dependency-revision=E2=80=9D, the key is module-= name. The > =E2=80=9Cmandatory > true=E2=80=9D statement is not necessary for this leaf because it is = a key. > > 6) Under the =E2=80=9Clist dependency-revision=E2=80=9D, the leaf rev= ision-identifier > is > specified as =E2=80=9Cmandatory=E2=80=9D. What would this leaf be spe= cified when a > dependent > module does not have a revision? > > 7) =E2=80=9Clist assigment-ranges=E2=80=9D should be =E2=80=9Clist as= signment-ranges=E2=80=9D. A > letter =E2=80=98n=E2=80=99 is > missing in the current YANG module because of a typo. > > 8) For =E2=80=9Clist assignment-ranges=E2=80=9D, the key is entry-poi= nt. The > =E2=80=9Cmandatory true=E2=80=9D > statement is not necessary for this leaf because it is a key. > > 9) As a convention, the node names of =E2=80=9Clist assignment-ranges= =E2=80=9D and > =E2=80=9Clist items=E2=80=9D > should be in the singular form, the same way as =E2=80=9Clist > dependency-revision=E2=80=9D, so > that they would be =E2=80=9Clist assignment-range=E2=80=9D and =E2=80= =9Clist item=E2=80=9D. > > 10) Since a YANG SID value is globally unique, would it be beneficial > to have a > statement in the YANG file to describe the requirement formally? This > can be > easily done by adding the following statement under =E2=80=9Clist ite= ms=E2=80=9D: > unique "sid"; > > 11) The format of the YANG file needs to be adjusted. Some of the > lines in the > .yang file are longer than 69 characters. For example, at line 108 is= : > o Any subsequent schema node name is in the > namespace-qualified form > To examine, the command =E2=80=9Cpyang --ietf --max-line-length 69 FI= LE=E2=80=9D can > be used. > Before publishing, an RFC editor would normalize the format by using > the > command =E2=80=9Cpyang -f yang --keep-comments --yang-line-length 69 = FILE=E2=80=9D. It > would be > helpful to run this command now since it may change the lines to be > longer than > the limit of 69 characters. > > 12) In the example in Appendix A, the four "module-revision" > statements contain > =E2=80=9C.yang=E2=80=9D after the date, not following the pattern rul= e of the > revision-identifier. It seems that the sid generation tool did not > take out the > extension =E2=80=9C.yang=E2=80=9D. > > 13) In Appendix A, the 5th item is: > o iana-crypt-hash@2014-04-04.yang (defined in [RFC7317]) > but in RFC7317, the revision of iana-crypt-hash is 2014-08-06 > > 14) The following is a thought that may have been discussed before an= d > decided > by the WG, but I=E2=80=99d mention it here anyway just in case: Since= the > scope of a > .sid file is for a single YANG file (module), many of the data nodes > start with > the namespace of this particular module. The =E2=80=9Cschema-node-pat= h=E2=80=9D > currently > requires an identifier string to always start with a namespace. > Because of this > requirement, there are many repeated namespace strings in the > identifiers of > the items. If we assume that the default starting namespace is the > module > associated with the .sid file, we may shorten the .sid file? > > - Xufeng > > > > > --0000000000003923c305bf85f697 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Dear Xufeng,

Thank you for the detailed= =C2=A0feedback. We will take into account all the remarks you have made and= will modify accordingly.

Thank you, Francesca, fo= r following on Xufeng's review.

Best=C2=A0rega= rds,
Alexander


On Fri, Mar 26, 2021 at 5:18 P= M Francesca Palombini <francesca.palombini@ericsson.com> wrote:
Xufeng,

Thank you very much for the detailed review!

Authors: please address Xufeng's comments together with the other Last = Call comments received.

Thanks,
Francesca

=EF=BB=BFOn 26/03/2021, 00:40, "Xufeng Liu via Datatracker" <<= a href=3D"mailto:noreply@ietf.org" target=3D"_blank">noreply@ietf.org&g= t; wrote:

=C2=A0 =C2=A0 Reviewer: Xufeng Liu
=C2=A0 =C2=A0 Review result: Ready with Nits

=C2=A0 =C2=A0 This is a review of the YANG module in draft-ietf-core-sid-15= .

=C2=A0 =C2=A0 Minor Issues, Nits, and Questions:

=C2=A0 =C2=A0 1) This module uses the yang-data extension in RFC8040, which= was the best
=C2=A0 =C2=A0 choice a few years ago when this draft started. However, RFC8= 791 has been
=C2=A0 =C2=A0 published so that the YANG structure extension is available n= ow. Has the YANG
=C2=A0 =C2=A0 structure extension been considered to replace the yang-data = extension?

=C2=A0 =C2=A0 2) The container sid-file is missing in the tree diagram in S= ection 4. RFC8340
=C2=A0 =C2=A0 specifies the tree format to represent such a yang-data defin= ition. If the YANG
=C2=A0 =C2=A0 structure extension in RFC8791 is used, RFC8791 describes how= the tree diagram
=C2=A0 =C2=A0 looks like for such a YANG structure. Also, the top container= would not be
=C2=A0 =C2=A0 needed, because a YANG structure is encoded as a 'contain= er'.

=C2=A0 =C2=A0 3) In the container sid-file, the leaf module-name is optiona= l. What is the
=C2=A0 =C2=A0 assumption when it is not specified? It would be beneficial t= o clarify in the
=C2=A0 =C2=A0 description statement.

=C2=A0 =C2=A0 4) In the container sid-file, the leaf sid-file-version is op= tional. The
=C2=A0 =C2=A0 description says that this number starts at zero. Let=E2=80= =99s say that there are two
=C2=A0 =C2=A0 .sid files, one of which does not have the version number and= the other one has
=C2=A0 =C2=A0 version number 0. Are they the same? If so, would it be bette= r to have a
=C2=A0 =C2=A0 default statement with a default value of 0?

=C2=A0 =C2=A0 5) For =E2=80=9Clist dependency-revision=E2=80=9D, the key is= module-name. The=C2=A0 =E2=80=9Cmandatory
=C2=A0 =C2=A0 true=E2=80=9D statement is not necessary for this leaf becaus= e it is a key.

=C2=A0 =C2=A0 6) Under the =E2=80=9Clist dependency-revision=E2=80=9D, the = leaf revision-identifier is
=C2=A0 =C2=A0 specified as =E2=80=9Cmandatory=E2=80=9D. What would this lea= f be specified when a dependent
=C2=A0 =C2=A0 module does not have a revision?

=C2=A0 =C2=A0 7) =E2=80=9Clist assigment-ranges=E2=80=9D should be =E2=80= =9Clist assignment-ranges=E2=80=9D. A letter =E2=80=98n=E2=80=99 is
=C2=A0 =C2=A0 missing in the current YANG module because of a typo.

=C2=A0 =C2=A0 8) For =E2=80=9Clist assignment-ranges=E2=80=9D, the key is e= ntry-point. The=C2=A0 =E2=80=9Cmandatory true=E2=80=9D
=C2=A0 =C2=A0 statement is not necessary for this leaf because it is a key.=

=C2=A0 =C2=A0 9) As a convention, the node names of =E2=80=9Clist assignmen= t-ranges=E2=80=9D and =E2=80=9Clist items=E2=80=9D
=C2=A0 =C2=A0 should be in the singular form, the same way as =E2=80=9Clist= dependency-revision=E2=80=9D, so
=C2=A0 =C2=A0 that they would be =E2=80=9Clist assignment-range=E2=80=9D an= d =E2=80=9Clist item=E2=80=9D.

=C2=A0 =C2=A0 10) Since a YANG SID value is globally unique, would it be be= neficial to have a
=C2=A0 =C2=A0 statement in the YANG file to describe the requirement formal= ly? This can be
=C2=A0 =C2=A0 easily done by adding the following statement under =E2=80=9C= list items=E2=80=9D:
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 unique "sid";

=C2=A0 =C2=A0 11) The format of the YANG file needs to be adjusted. Some of= the lines in the
=C2=A0 =C2=A0 .yang file are longer than 69 characters. For example, at lin= e 108 is:
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0o=C2=A0 Any subsequent schema node= name is in the namespace-qualified form
=C2=A0 =C2=A0 To examine, the command =E2=80=9Cpyang --ietf --max-line-leng= th 69 FILE=E2=80=9D can be used.
=C2=A0 =C2=A0 Before publishing, an RFC editor would normalize the format b= y using the
=C2=A0 =C2=A0 command =E2=80=9Cpyang -f yang --keep-comments --yang-line-le= ngth 69 FILE=E2=80=9D. It would be
=C2=A0 =C2=A0 helpful to run this command now since it may change the lines= to be longer than
=C2=A0 =C2=A0 the limit of 69 characters.

=C2=A0 =C2=A0 12) In the example in Appendix A, the four "module-revis= ion" statements contain
=C2=A0 =C2=A0 =E2=80=9C.yang=E2=80=9D after the date, not following the pat= tern rule of the
=C2=A0 =C2=A0 revision-identifier. It seems that the sid generation tool di= d not take out the
=C2=A0 =C2=A0 extension =E2=80=9C.yang=E2=80=9D.

=C2=A0 =C2=A0 13) In Appendix A, the 5th item is:
=C2=A0 =C2=A0 =C2=A0o=C2=A0 iana-crypt-hash@2014-04-04.yang (defined in [RF= C7317])
=C2=A0 =C2=A0 but in=C2=A0 RFC7317, the revision of=C2=A0 iana-crypt-hash i= s 2014-08-06

=C2=A0 =C2=A0 14) The following is a thought that may have been discussed b= efore and decided
=C2=A0 =C2=A0 by the WG, but I=E2=80=99d mention it here anyway just in cas= e: Since the scope of a
=C2=A0 =C2=A0 .sid file is for a single YANG file (module), many of the dat= a nodes start with
=C2=A0 =C2=A0 the namespace of this particular module. The =E2=80=9Cschema-= node-path=E2=80=9D currently
=C2=A0 =C2=A0 requires an identifier string to always start with a namespac= e. Because of this
=C2=A0 =C2=A0 requirement, there are many repeated namespace strings in the= identifiers of
=C2=A0 =C2=A0 the items. If we assume that the default starting namespace i= s the module
=C2=A0 =C2=A0 associated with the .sid file, we may shorten the .sid file?<= br>
=C2=A0 =C2=A0 - Xufeng




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YWNobWVudHMuDQo+QXMgZW1haWxzIG1heSBiZSBhbHRlcmVkLCBPcmFuZ2UgaXMgbm90IGxpYWJs ZSBmb3IgbWVzc2FnZXMgdGhhdCBoYXZlIGJlZW4gbW9kaWZpZWQsIGNoYW5nZWQgb3IgZmFsc2lm aWVkLg0KPlRoYW5rIHlvdS4NCj4NCg0K From nobody Wed Apr 14 07:43:22 2021 Return-Path: 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 957BD3A1093; Wed, 14 Apr 2021 07:43:20 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.118 X-Spam-Level: X-Spam-Status: No, score=-2.118 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_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, UNPARSEABLE_RELAY=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=orange.com Received: from mail.ietf.org 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cyz0ijr12pIhrGQV1BRsrYCFSa120OPUkzFpDzUMhTqB6EiBwaGadryPMbVTnr5vxK jQtZ1dCDLd3EettlrA8Rq45RplK1LXDqeGlRLMFjiwI2rwBH66YSwH9VElejNYNEdU wmnbdb6ql/fTvIxqH4IIyjpnH20Q/x3Xh0NOTtOUMoKhNcopBwi1M2gdK2qRi2azbH yKO815uhwnzcg== Received: from Exchangemail-eme6.itn.ftgroup (unknown [xx.xx.13.82]) by opfedar01.francetelecom.fr (ESMTP service) with ESMTP id 4FL4w011spzBrLb; Wed, 14 Apr 2021 16:43:12 +0200 (CEST) From: To: Francesca Palombini CC: "core@ietf.org" , "draft-ietf-core-new-block@ietf.org" Thread-Topic: AD review of draft-ietf-core-new-block-09 Thread-Index: AQHXKMAB96eXAzct4U2xMq7Yy2g+ZqqnH+rQgA0LswD///dvIA== Date: Wed, 14 Apr 2021 14:43:10 +0000 Message-ID: <8765_1618411392_6076FF80_8765_49_1_787AE7BB302AE849A7480A190F8B933035369C14@OPEXCAUBMA2.corporate.adroot.infra.ftgroup> References: <836C3253-EBED-4758-9B07-6AEF91784DAD@ericsson.com> <6260_1617721331_606C77F3_6260_205_9_787AE7BB302AE849A7480A190F8B933035364693@OPEXCAUBMA2.corporate.adroot.infra.ftgroup> <922BEA47-DD6A-41E5-96FF-2436ABDDBE65@ericsson.com> In-Reply-To: <922BEA47-DD6A-41E5-96FF-2436ABDDBE65@ericsson.com> Accept-Language: fr-FR, en-US Content-Language: fr-FR X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.114.13.245] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Subject: Re: [core] AD review of draft-ietf-core-new-block-09 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 14 Apr 2021 14:43:21 -0000 SGkgRnJhbnNhc2NhLCANCg0KVGhhbmsgeW91IGZvciB0aGUgZm9sbG93LXVwLiANCg0KVGhlIGZ1 bGwgY2hhbmdlcyBjYW4gYmUgdHJhY2tlZCBhdDogaHR0cHM6Ly90aW55dXJsLmNvbS9uZXctYmxv Y2stbGF0ZXN0LiANCg0KUGxlYXNlIHNlZSBpbmxpbmUuIA0KDQpDaGVlcnMsDQpNZWQNCg0KPiAt LS0tLU1lc3NhZ2UgZCdvcmlnaW5lLS0tLS0NCj4gRGXCoDogRnJhbmNlc2NhIFBhbG9tYmluaSBb 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from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 75D6F3A12E2; Wed, 14 Apr 2021 08:24:27 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: core@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 7.27.0 Auto-Submitted: auto-generated Precedence: bulk Reply-To: core@ietf.org Message-ID: <161841386742.14377.194497641589933072@ietfa.amsl.com> Date: Wed, 14 Apr 2021 08:24:27 -0700 Archived-At: Subject: [core] I-D Action: draft-ietf-core-new-block-10.txt X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.29 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 14 Apr 2021 15:24:28 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Constrained RESTful Environments WG of the IETF. Title : Constrained Application Protocol (CoAP) Block-Wise Transfer Options for Faster Transmission Authors : Mohamed Boucadair Jon Shallow Filename : draft-ietf-core-new-block-10.txt Pages : 45 Date : 2021-04-14 Abstract: This document specifies alternative Constrained Application Protocol (CoAP) Block-Wise transfer options: Q-Block1 and Q-Block2 Options. These options are similar to the CoAP Block1 and Block2 Options defined in RFC 7959, not a replacement for them, but do enable faster transmission rates for large amounts of data with less packet interchanges. Also, Q-Block1 and Q-Block2 Options support faster recovery should any of the blocks get lost in transmission. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-core-new-block/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-core-new-block-10 https://datatracker.ietf.org/doc/html/draft-ietf-core-new-block-10 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-core-new-block-10 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Wed Apr 14 09:56:47 2021 Return-Path: X-Original-To: core@ietf.org Delivered-To: core@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 94C2B3A16F7; Wed, 14 Apr 2021 09:56:41 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: The IESG To: "IETF-Announce" X-Test-IDTracker: no X-IETF-IDTracker: 7.27.0 Auto-Submitted: auto-generated Precedence: bulk CC: core-chairs@ietf.org, core@ietf.org, draft-ietf-core-new-block@ietf.org, francesca.palombini@ericsson.com, marco.tiloca@ri.se Reply-To: last-call@ietf.org Sender: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-ID: <161841940153.9107.1059817204182501713@ietfa.amsl.com> Date: Wed, 14 Apr 2021 09:56:41 -0700 Archived-At: Subject: [core] Last Call: (Constrained Application Protocol (CoAP) Block-Wise Transfer Options for Faster Transmission) to Proposed Standard X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.29 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 14 Apr 2021 16:56:42 -0000 The IESG has received a request from the Constrained RESTful Environments WG (core) to consider the following document: - 'Constrained Application Protocol (CoAP) Block-Wise Transfer Options for Faster Transmission' as Proposed Standard The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the last-call@ietf.org mailing lists by 2021-04-28. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract This document specifies alternative Constrained Application Protocol (CoAP) Block-Wise transfer options: Q-Block1 and Q-Block2 Options. These options are similar to the CoAP Block1 and Block2 Options defined in RFC 7959, not a replacement for them, but do enable faster transmission rates for large amounts of data with less packet interchanges. Also, Q-Block1 and Q-Block2 Options support faster recovery should any of the blocks get lost in transmission. The file can be obtained via https://datatracker.ietf.org/doc/draft-ietf-core-new-block/ No IPR declarations have been submitted directly on this I-D. 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charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: ericsson.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: HE1PR07MB4217.eurprd07.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 622c5134-3196-4393-8e78-08d9029c6acc X-MS-Exchange-CrossTenant-originalarrivaltime: 18 Apr 2021 19:01:47.6561 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 92e84ceb-fbfd-47ab-be52-080c6b87953f X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: hHCxkfll8z3hOsWGoB2S+CHOXOTLSKZ6eD/ndCVt0L5QnkrAlTxRSbiqgU5WBztTBGm8wdEvl3+VEf+BAIpWqcXIhSDndAMhEoDqn7+mNiG7EgtT84oyUxpoev2rkD6V X-MS-Exchange-Transport-CrossTenantHeadersStamped: HE1PR0702MB3817 Archived-At: Subject: [core] AD review of draft-ietf-core-senml-versions-02 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 18 Apr 2021 19:02:10 -0000 IFRoYW5rcyBmb3IgdGhlIHdvcmsgb24gdGhpcyBkb2N1bWVudC4gVHdvIHZlcnkgbWlub3IgY29t bWVudHMgYmVsb3csIHRvIHRha2Ugb3IgbGVhdmUgYXMgeW91IHNlZSBmaXQuIFBsZWFzZSBoYW5k bGUgdGhlc2UgY29tbWVudHMgdG9nZXRoZXIgd2l0aCB0aGUgTGFzdCBDYWxsIGNvbW1lbnRzLg0K DQpGcmFuY2VzY2ENCg0KMS4gLS0tLS0NCiAgICAgICAgICAgICAgICBfXyA1MiAgICAgICAgICAg ICAgICAgICAgICBmYw0KICAgdmVyc2lvbiAgPSAgXCAgICAgICAgICBwcmVzZW50KGZjKSDii4Ug Mg0KICAgICAgICAgICAgICAgL19fIGZjID0gMA0KDQpGUDogQ3JlYXRpdmUgd2F5IHRvIGV4cHJl c3MgYSBzdW1hdGlvbiBpbiB0ZXh0LiBNYXliZSBhIHNlbnRlbmNlIGFib3V0IHRoZSBmYWN0IHRo YXQgc2lnbWEgaXMgcmVwcmVzZW50ZWQgdGhpcyB3YXkgaW4gdGhlIHRleHQgbWlnaHQgYmUgZ29v ZC4gQWxzbywgdGhlIHRlcm1pbm9sb2d5IHNlY3Rpb24gc3RhdGVzIHRoYXQgZXhwb25lbnRpYXRp b24gaXMgZXhwcmVzc2VkIHdpdGggc3VwZXJzY3JpcHQgbm90YXRpb24gWF4oWSksIGJ1dCB0aGF0 IGlzIG5vdCB1c2VkIGhlcmUuDQoNCjIuIC0tLS0tDQoNClNpbmNlIHRoZSBTZWNvbmRhcnkgVW5p dHMgaXMgZGVmaW5lZCBpbiBSRkMgODc5OCwgaXQgd291bGQgbWFrZSBzZW5zZSBpbiBteSBvcGlu aW9uIHRvIGFkZCB0aGF0IFJGQyB0byB0aGUgU3BlY2lmaWNhdGlvbiBjb2x1bW4uIEluIHByYWN0 aWNlLCBpdCB3b3VsZCBtYWtlIHNlbnNlIHRvIG1lIHRvIGFkZCB0byB0aGUgc3BlY2lmaWNhdGlv biBjb2x1bW4gbm90IG9ubHkgdGhlIGRvY3VtZW50IHdoZXJlIHRoZSBmZWF0dXJlIGNvZGUgbnVt YmVyIGlzIGRlZmluZWQsIGJ1dCBhbHNvIHRoZSBzcGVjaWZpY2F0aW9uIHdoZXJlIHRoZSBmZWF0 dXJlIGluZGljYXRlZCBpcyBkZWZpbmVkLg0KDQo= From nobody Mon Apr 19 04:53:17 2021 Return-Path: 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 0A8E13A2E96; 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Mon, 19 Apr 2021 13:53:05 +0200 (CEST) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 13.4 \(3608.120.23.2.4\)) From: Carsten Bormann In-Reply-To: <17E71A76-4839-4A45-9416-38E0B53A9556@ericsson.com> Date: Mon, 19 Apr 2021 13:53:05 +0200 Cc: "core@ietf.org" , "draft-ietf-core-senml-versions.all@ietf.org" X-Mao-Original-Outgoing-Id: 640525985.263515-852320697ade4aa1c42b17e9a4c73cfc Content-Transfer-Encoding: quoted-printable Message-Id: <92272FFE-2AC7-4932-B2A2-96801E74E9EA@tzi.org> References: <17E71A76-4839-4A45-9416-38E0B53A9556@ericsson.com> To: Francesca Palombini X-Mailer: Apple Mail (2.3608.120.23.2.4) Archived-At: Subject: Re: [core] AD review of draft-ietf-core-senml-versions-02 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 19 Apr 2021 11:53:15 -0000 On 2021-04-18, at 21:01, Francesca Palombini = wrote: >=20 > Thanks for the work on this document. Two very minor comments below, = to take or leave as you see fit. Please handle these comments together = with the Last Call comments. >=20 > Francesca >=20 > 1. ----- > __ 52 fc > version =3D \ present(fc) =E2=8B=85 2 > /__ fc =3D 0 >=20 > FP: Creative way to express a sumation in text. Thanks to asciitex, as suggested (and now maintained) by Lars Eggert=E2=80= =A6 Looks much better in SVG, = https://www.ietf.org/archive/id/draft-ietf-core-senml-versions-02.html#sec= tion-2-3.1 But the text in the paragraph above already talks about the sum and = taking 2 to the power, so the display math is just an illustration. > Maybe a sentence about the fact that sigma is represented this way in = the text might be good. Also, the terminology section states that = exponentiation is expressed with superscript notation X^(Y), but that is = not used here. We don=E2=80=99t have a good way to handle the discrepancies between TXT = and HTML. I added a note about the superscript notation to 1.1, but not about the = sigma, which is just ascii-art... > 2. ----- >=20 > Since the Secondary Units is defined in RFC 8798, it would make sense = in my opinion to add that RFC to the Specification column. In practice, = it would make sense to me to add to the specification column not only = the document where the feature code number is defined, but also the = specification where the feature indicated is defined. Added. Also added: > Where the specification of the feature code is provided in a document > that is separate from the specification of the feature itself (as with > feature code 4 above), both specifications should be listed. Changes are now in = https://github.com/core-wg/senml-versions/commit/105c346 Thank you! Gr=C3=BC=C3=9Fe, Carsten From nobody Mon Apr 19 07:05:15 2021 Return-Path: X-Original-To: core@ietf.org Delivered-To: core@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id D92F93A32BB; Mon, 19 Apr 2021 07:05:07 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: The IESG To: "IETF-Announce" X-Test-IDTracker: no X-IETF-IDTracker: 7.28.0 Auto-Submitted: auto-generated Precedence: bulk CC: core-chairs@ietf.org, core@ietf.org, draft-ietf-core-senml-versions@ietf.org, francesca.palombini@ericsson.com, jaime@iki.fi Reply-To: last-call@ietf.org Sender: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-ID: <161884110785.10169.2344028122583476897@ietfa.amsl.com> Date: Mon, 19 Apr 2021 07:05:07 -0700 Archived-At: Subject: [core] Last Call: (SenML Features and Versions) to Proposed Standard X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.29 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 19 Apr 2021 14:05:08 -0000 The IESG has received a request from the Constrained RESTful Environments WG (core) to consider the following document: - 'SenML Features and Versions' as Proposed Standard The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the last-call@ietf.org mailing lists by 2021-05-03. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract This short document updates RFC 8428, Sensor Measurement Lists (SenML), by specifying the use of independently selectable "SenML Features" and mapping them to SenML version numbers. The file can be obtained via https://datatracker.ietf.org/doc/draft-ietf-core-senml-versions/ No IPR declarations have been submitted directly on this I-D. 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boundary="0vu6IKVYFU7EKk9dKa0plA2u4s1Il3can"; protected-headers="v1" From: Marco Tiloca To: "core@ietf.org WG (core@ietf.org)" Message-ID: <9c14ea30-3f76-f840-7e7b-901dcb1c8678@ri.se> Subject: [core] CoRE WG Virtual Interim 2021-04-28 --0vu6IKVYFU7EKk9dKa0plA2u4s1Il3can Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable Content-Language: en-US Dear all, Just a reminder that we'll have a virtual interim meeting on Wednesday,=20 April 28th at 14:00 UTC. The agenda is available at [1]. Best, Marco and Jaime [1] https://datatracker.ietf.org/meeting/interim-2021-core-04/session/cor= e --=20 Marco Tiloca Ph.D., Senior Researcher Division: Digital System Department: Computer Science Unit: Cybersecurity RISE Research Institutes of Sweden https://www.ri.se Phone: +46 (0)70 60 46 501 Isafjordsgatan 22 / Kistag=C3=A5ngen 16 SE-164 40 Kista (Sweden) --0vu6IKVYFU7EKk9dKa0plA2u4s1Il3can-- --msj9QKWcnAqkwT0Nslp2pyXCvENwLw63V Content-Type: application/pgp-signature; name="OpenPGP_signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="OpenPGP_signature" -----BEGIN PGP SIGNATURE----- wsB5BAABCAAjFiEEOEo4cV326Z7GypVg7iZktA5Y2kMFAmCATb4FAwAAAAAACgkQ7iZktA5Y2kMe Xwf9HRKIC9Jqp0vArPKCBkKRkHVvHFhKr47apOCP3xIEIi9Xxv+D7wqH8eRt7HQVsQbaLW7bKdhZ omsDn9Epx/0HdqPmTzl04HFdPDz48QNwSiiu0WI8BjRjqT4SSpXUfGbyM+2RYVaa6UU+V1xney6A dZTlrVGaymheDY2ZW1JcIY+x/PdpUmDJ1UJRQXHfojWg1J8ofxpF+zL0g8f97meKSMTP/yPIFvoT T8VZ1jWPX5xA1S/9vL9paQPGdxvkntsStq03YTTGxHDUXHhEXNbZEp+BUZmQxtfdXgymOYNTPpNd RiyldssYiVt7xNnrI0RfwGWLVcg3Ebg2pAkSK6oB/g== =bRqD -----END PGP SIGNATURE----- --msj9QKWcnAqkwT0Nslp2pyXCvENwLw63V-- From nobody Sat Apr 24 14:33:44 2021 Return-Path: X-Original-To: core@ietf.org Delivered-To: core@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id B7E473A200B; Sat, 24 Apr 2021 14:33:42 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Pete Resnick via Datatracker To: Cc: core@ietf.org, draft-ietf-core-new-block.all@ietf.org, last-call@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 7.28.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <161930002269.19583.4502578348808948027@ietfa.amsl.com> Reply-To: Pete Resnick Date: Sat, 24 Apr 2021 14:33:42 -0700 Archived-At: Subject: [core] Genart last call review of draft-ietf-core-new-block-10 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.29 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 24 Apr 2021 21:33:43 -0000 Reviewer: Pete Resnick Review result: Ready with Issues I am the assigned Gen-ART reviewer for this draft. The General Area Review Team (Gen-ART) reviews all IETF documents being processed by the IESG for the IETF Chair. Please treat these comments just like any other last call comments. For more information, please see the FAQ at . Document: draft-ietf-core-new-block-10 Reviewer: Pete Resnick Review Date: 2021-04-24 IETF LC End Date: 2021-04-28 IESG Telechat date: Not scheduled for a telechat Summary: The document looks pretty solid to me. There is one item I marked as a minor "issue", but it may simply be an editorial item that confused me; I figured I'd call it an issue just in case so it doesn't get left to the last minute to look at. Do note that I have not reviewed the examples for correctness; I simply don't have the expertise to be convinced I'd do it right. Major issues: None. Minor issues: In section 4.4: I find this paragraph confusing: The requested missing block numbers MUST have an increasing block number in each additional Q-Block2 Option with no duplicates. The server SHOULD respond with a 4.00 (Bad Request) to requests not adhering to this behavior. So, given the SHOULD in the second sentence, it appears that the MUST in the first sentence doesn't apply to the server (i.e., to enforce this), but rather to the client doing the request. You should probably say it that way. Also, the SHOULD in the second sentence is not entirely clear to me: Are you saying that the server can choose to use some other response code, or are you saying that the server can accept the request and do something interesting with it? Below is an attempt to fix it, but might not be correct depending on what you mean: The client MUST use an increasing block number in each additional Q-Block2 Option when requesting missing block numbers, and MUST request no duplicates. The server MUST reject requests not adhering to this behavior and SHOULD respond with a 4.00 (Bad Request) to such requests. There are other places in the document that use MUST with regard to what needs to be in a piece of data (see for example sections 4.5 and 4.6), but don't make it clear who is responsible for enforcing that MUST (the client or the server). You should read through the entire document for MUSTs (or SHOULDs) like that and make sure it's clear from the context. Nits/editorial comments: In section 4.3: In several response code definitions: The token used MUST be any token that was received in a request using the same Request-Tag. That doesn't really parse well. I think you either mean "The token used MUST be a token" or you mean "The token used can be any token". Specific response codes: 4.00 (Bad Request) This Response Code MUST be returned if the request does not include neither a Request-Tag Option nor a Size1 Option but does include a Q-Block1 option. Either change "neither...nor" to "either or", or change "does not include" to "includes". 4.02 (Bad Option) Either this Response Code (in case of Confirmable request) or a reset message (in case of Non-confirmable request) MUST be returned if the server does not support the Q-Block Options. That sort of buries a MUST requirement for the Non-confirmable case inside this requirement for a Response Code. I suggest instead: This Response Code MUST be returned for a Confirmable request if the server does not support the Q-Block Options. (A reset message is sent in case of Non-confirmable request.) In section 4.4: The passive here is not great form, particularly because it doesn't name the actor: It is permissible to set the M bit to request this... How about instead: The client MAY set the M bit to request this... Maybe that's obvious, since the client does the requesting, but I think the non-passive form is easier to read. In the second to last paragraph: If the server transmits a new body of data (e.g., a triggered Observe notification) with a new ETag to the same client as an additional response, the client should remove any partially received body held for a previous ETag for that resource as it is unlikely the missing blocks can be retrieved. I'm ambivalent about whether that "should" ought to be uppercased, but I just wanted to make sure you intended the lowercase. In section 7.2: For the server receiving NON Q-Block1 requests, it SHOULD send back a 2.31 (Continue) Response Code on receipt of all of the MAX_PAYLOADS payloads to prevent the client unnecessarily delaying. Otherwise... When you say "Otherwise", Do you mean, "For other payloads"? Either way, you should probably change that to make it clear. From nobody Sat Apr 24 15:38:54 2021 Return-Path: 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 D4F1A3A221B; Sat, 24 Apr 2021 15:38:52 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.896 X-Spam-Level: X-Spam-Status: No, score=-1.896 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no 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 aF_N66pOrbFh; Sat, 24 Apr 2021 15:38:48 -0700 (PDT) Received: from bsa2.jck.com (bsa2.jck.com [70.88.254.51]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 497D23A2219; Sat, 24 Apr 2021 15:38:47 -0700 (PDT) Received: from [198.252.137.10] (helo=PSB) by bsa2.jck.com with esmtp (Exim 4.82 (FreeBSD)) (envelope-from ) id 1laQvF-000MLY-QV; Sat, 24 Apr 2021 18:38:45 -0400 Date: Sat, 24 Apr 2021 18:38:39 -0400 From: John C Klensin To: Pete Resnick , gen-art@ietf.org cc: last-call@ietf.org, draft-ietf-core-new-block.all@ietf.org, core@ietf.org Message-ID: <3D267D4121127EA65D3C3A7D@PSB> In-Reply-To: <161930002269.19583.4502578348808948027@ietfa.amsl.com> References: <161930002269.19583.4502578348808948027@ietfa.amsl.com> X-Mailer: Mulberry/4.0.8 (Win32) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline X-SA-Exim-Connect-IP: 198.252.137.10 X-SA-Exim-Mail-From: john-ietf@jck.com X-SA-Exim-Scanned: No (on bsa2.jck.com); SAEximRunCond expanded to false Archived-At: Subject: Re: [core] [Last-Call] Genart last call review of draft-ietf-core-new-block-10 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 24 Apr 2021 22:38:53 -0000 --On Saturday, April 24, 2021 14:33 -0700 Pete Resnick via Datatracker wrote: > Reviewer: Pete Resnick > Review result: Ready with Issues > > I am the assigned Gen-ART reviewer for this draft. The General > Area Review Team (Gen-ART) reviews all IETF documents being > processed by the IESG for the IETF Chair. Please treat these > comments just like any other last call comments. >... > Nits/editorial comments: > > In section 4.3: > > In several response code definitions: > > The token used MUST be any token that was received in a > request using the same Request-Tag. > > That doesn't really parse well. I think you either mean "The > token used MUST be a token" or you mean "The token used can be > any token". If the first meaning is intended, isn't that tautologically true? If the token used is not a token, what would it be? john From nobody Sat Apr 24 16:34:43 2021 Return-Path: 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 1568C3A2532; Sat, 24 Apr 2021 16:34:42 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.895 X-Spam-Level: X-Spam-Status: No, score=-1.895 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no 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 40YvlAj6DNmk; Sat, 24 Apr 2021 16:34:37 -0700 (PDT) Received: from episteme.net (episteme.net [216.169.5.102]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 1510A3A2530; Sat, 24 Apr 2021 16:34:36 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by episteme.net (Postfix) with ESMTP id 8B74DE295DA1; Sat, 24 Apr 2021 18:34:35 -0500 (CDT) Received: from episteme.net ([127.0.0.1]) by localhost (episteme.net [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id BqZb2x3STR2U; Sat, 24 Apr 2021 18:34:11 -0500 (CDT) Received: from [172.16.1.27] (episteme.net [216.169.5.102]) by episteme.net (Postfix) with ESMTPSA id 72C30E295D63; Sat, 24 Apr 2021 18:34:05 -0500 (CDT) From: Pete Resnick To: John C Klensin Cc: gen-art@ietf.org, last-call@ietf.org, draft-ietf-core-new-block.all@ietf.org, core@ietf.org Date: Sat, 24 Apr 2021 18:33:35 -0500 X-Mailer: MailMate (1.14r5795) Message-ID: In-Reply-To: <3D267D4121127EA65D3C3A7D@PSB> References: <161930002269.19583.4502578348808948027@ietfa.amsl.com> <3D267D4121127EA65D3C3A7D@PSB> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="=_MailMate_01D1DCF0-A731-4C8F-8FA3-A208A71FB356_=" Archived-At: Subject: Re: [core] [Gen-art] [Last-Call] Genart last call review of draft-ietf-core-new-block-10 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 24 Apr 2021 23:34:42 -0000 --=_MailMate_01D1DCF0-A731-4C8F-8FA3-A208A71FB356_= Content-Type: text/plain; format=flowed; markup=markdown On 24 Apr 2021, at 17:38, John C Klensin wrote: > --On Saturday, April 24, 2021 14:33 -0700 Pete Resnick via > Datatracker wrote: > >> Reviewer: Pete Resnick >> Review result: Ready with Issues >> >> I am the assigned Gen-ART reviewer for this draft. The General >> Area Review Team (Gen-ART) reviews all IETF documents being >> processed by the IESG for the IETF Chair. Please treat these >> comments just like any other last call comments. >> ... > >> Nits/editorial comments: >> >> In section 4.3: >> >> In several response code definitions: >> >> The token used MUST be any token that was received in a >> request using the same Request-Tag. >> >> That doesn't really parse well. I think you either mean "The >> token used MUST be a token" or you mean "The token used can be >> any token". > > If the first meaning is intended, isn't that tautologically > true? If the token used is not a token, what would it be? You need to put it in the context of the example give. It could be: The token used MUST be a token that was received in a request using the same Request-Tag. which means it can't be a token with a different Request-Tag, or it could be: The token used can be any token that was received in a request using the same Request-Tag. which means that there might be different tokens that use the same Request-Tag, but you can use any of them. pr -- Pete Resnick https://www.episteme.net/ All connections to the world are tenuous at best --=_MailMate_01D1DCF0-A731-4C8F-8FA3-A208A71FB356_= Content-Type: text/html Content-Transfer-Encoding: quoted-printable

On 24 Apr 2021, at 17:38, John C Klensin wrote:

--On Saturday, April 24, 2021 14:33 -0700 Pete Resnick vi= a
Datatracker nore= ply@ietf.org wrote:

Reviewer: Pete Resnick
Review result: Ready with Issues

I am the assigned Gen-ART reviewer for this draft. The Ge= neral
Area Review Team (Gen-ART) reviews all IETF documents being
processed by the IESG for the IETF Chair. Please treat these
comments just like any other last call comments.
=2E..

Nits/editorial comments:

In section 4.3:

In several response code definitions:

The token used MUST be any token that was received in a request using the same Request-Tag.

That doesn't really parse well. I think you either mean "= The
token used MUST be a token" or you mean "The token used can be
any token".

If the first meaning is intended, isn't that tautological= ly
true? If the token used is not a token, what would it be?

You need to put it in the context of the example give. It= could be:

The token used MU=
ST be a token that was received in a
request using the same Request-Tag.

which means it can't be a token with a different Request-= Tag, or it could be:

The token used ca=
n be any token that was received in a
request using the same Request-Tag.

which means that there might be different tokens that use= the same Request-Tag, but you can use any of them.

pr

--
Pete Resnick https://www.episteme.net/
All connections to the world are tenuous at best

--=_MailMate_01D1DCF0-A731-4C8F-8FA3-A208A71FB356_=-- From nobody Sat Apr 24 17:07:24 2021 Return-Path: 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 9B0D63A2640; Sat, 24 Apr 2021 17:07:22 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.896 X-Spam-Level: X-Spam-Status: No, score=-1.896 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no 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 qjitiHy61Rne; Sat, 24 Apr 2021 17:07:17 -0700 (PDT) Received: from bsa2.jck.com (bsa2.jck.com [70.88.254.51]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id D53EF3A12BD; Sat, 24 Apr 2021 17:07:16 -0700 (PDT) Received: from [198.252.137.10] (helo=PSB) by bsa2.jck.com with esmtp (Exim 4.82 (FreeBSD)) (envelope-from ) id 1laSIs-000MYQ-SH; Sat, 24 Apr 2021 20:07:14 -0400 Date: Sat, 24 Apr 2021 20:07:08 -0400 From: John C Klensin To: Pete Resnick cc: gen-art@ietf.org, last-call@ietf.org, draft-ietf-core-new-block.all@ietf.org, core@ietf.org Message-ID: <7B24547D1DE544A6020A792E@PSB> In-Reply-To: References: <161930002269.19583.4502578348808948027@ietfa.amsl.com> <3D267D4121127EA65D3C3A7D@PSB> X-Mailer: Mulberry/4.0.8 (Win32) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline X-SA-Exim-Connect-IP: 198.252.137.10 X-SA-Exim-Mail-From: john-ietf@jck.com X-SA-Exim-Scanned: No (on bsa2.jck.com); SAEximRunCond expanded to false Archived-At: Subject: Re: [core] [Gen-art] [Last-Call] Genart last call review of draft-ietf-core-new-block-10 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 25 Apr 2021 00:07:23 -0000 --On Saturday, April 24, 2021 18:33 -0500 Pete Resnick wrote: > On 24 Apr 2021, at 17:38, John C Klensin wrote: > >> --On Saturday, April 24, 2021 14:33 -0700 Pete Resnick via >> Datatracker wrote: >> >>> Reviewer: Pete Resnick >>> Review result: Ready with Issues >>> >>> I am the assigned Gen-ART reviewer for this draft. The >>> General Area Review Team (Gen-ART) reviews all IETF >>> documents being processed by the IESG for the IETF Chair. >>> Please treat these comments just like any other last call >>> comments. >>> ... >> >>> Nits/editorial comments: >>> >>> In section 4.3: >>> >>> In several response code definitions: >>> >>> The token used MUST be any token that was received in a >>> request using the same Request-Tag. >>> >>> That doesn't really parse well. I think you either mean "The >>> token used MUST be a token" or you mean "The token used can >>> be any token". >> >> If the first meaning is intended, isn't that tautologically >> true? If the token used is not a token, what would it be? > > You need to put it in the context of the example give. It > could be: > > The token used MUST be a token that was received in a > request using the same Request-Tag. > > which means it can't be a token with a different Request-Tag, > or it could be: > > The token used can be any token that was received in a > request using the same Request-Tag. > > which means that there might be different tokens that use the > same Request-Tag, but you can use any of them. Ack. Thanks. john From nobody Mon Apr 26 03:31:38 2021 Return-Path: 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 6FD993A1855; Mon, 26 Apr 2021 03:31:36 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.118 X-Spam-Level: X-Spam-Status: No, score=-2.118 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_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, UNPARSEABLE_RELAY=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=orange.com 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 Jw4VTwK0wUJA; Mon, 26 Apr 2021 03:31:31 -0700 (PDT) Received: from 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a0AlsiAwxkRsmLpN5/sHaMHmnKbOxV70Mwhvf+VTle21EAH+kEOFI8Ik11O1Q5I9jU SdF1Qa4HqinVezsmXs3qaYvzH9iemXaozYG3+4sqpTNQ9fxg6MjRR9Qe9MK9Z9KCHj uwikjHSwt4jTg/gxAOSs03fYtq0/zR52dH7EWzER5ho+4wxFZAPDmJgPARlQjmEl8e /s6EYJR/rK4vA== Received: from Exchangemail-eme6.itn.ftgroup (unknown [xx.xx.13.104]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by opfednr00.francetelecom.fr (ESMTP service) with ESMTPS id 4FTLm05wQQzDq7q; Mon, 26 Apr 2021 12:31:28 +0200 (CEST) From: To: Pete Resnick , "gen-art@ietf.org" CC: "core@ietf.org" , "draft-ietf-core-new-block.all@ietf.org" , "last-call@ietf.org" Thread-Topic: Genart last call review of draft-ietf-core-new-block-10 Thread-Index: AQHXOVGCiqGUO50NcESIbMfAlWuTVarGWPLA Date: Mon, 26 Apr 2021 10:31:27 +0000 Message-ID: <12236_1619433088_60869680_12236_240_2_787AE7BB302AE849A7480A190F8B933035371913@OPEXCAUBMA2.corporate.adroot.infra.ftgroup> References: <161930002269.19583.4502578348808948027@ietfa.amsl.com> 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aXZlZCB0aGlzIGVtYWlsIGluIGVycm9yLCBwbGVhc2Ugbm90aWZ5IHRoZSBzZW5kZXIgYW5kIGRl bGV0ZSB0aGlzIG1lc3NhZ2UgYW5kIGl0cyBhdHRhY2htZW50cy4KQXMgZW1haWxzIG1heSBiZSBh bHRlcmVkLCBPcmFuZ2UgaXMgbm90IGxpYWJsZSBmb3IgbWVzc2FnZXMgdGhhdCBoYXZlIGJlZW4g bW9kaWZpZWQsIGNoYW5nZWQgb3IgZmFsc2lmaWVkLgpUaGFuayB5b3UuCgo= From nobody Tue Apr 27 16:11:52 2021 Return-Path: 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 C8F103A250D; Tue, 27 Apr 2021 16:11:36 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.895 X-Spam-Level: X-Spam-Status: No, score=-1.895 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no 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 bMTS4nti4x6h; Tue, 27 Apr 2021 16:11:31 -0700 (PDT) Received: from episteme.net (episteme.net [216.169.5.102]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 795223A24E1; Tue, 27 Apr 2021 16:11:28 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by episteme.net (Postfix) with ESMTP id B9F17E3213F2; Tue, 27 Apr 2021 18:11:26 -0500 (CDT) Received: from episteme.net ([127.0.0.1]) by localhost (episteme.net [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id CcilJksBZ9UR; Tue, 27 Apr 2021 18:11:25 -0500 (CDT) Received: from [172.16.1.16] (episteme.net [216.169.5.102]) by episteme.net (Postfix) with ESMTPSA id 6DB9EE3213E1; Tue, 27 Apr 2021 18:11:25 -0500 (CDT) From: Pete Resnick To: mohamed.boucadair@orange.com Cc: gen-art@ietf.org, core@ietf.org, draft-ietf-core-new-block.all@ietf.org, last-call@ietf.org Date: Tue, 27 Apr 2021 18:11:23 -0500 X-Mailer: MailMate (1.14r5798) Message-ID: <19B00980-0C0A-40D4-B40E-2096E9E137AB@episteme.net> In-Reply-To: <12236_1619433088_60869680_12236_240_2_787AE7BB302AE849A7480A190F8B933035371913@OPEXCAUBMA2.corporate.adroot.infra.ftgroup> References: <161930002269.19583.4502578348808948027@ietfa.amsl.com> <12236_1619433088_60869680_12236_240_2_787AE7BB302AE849A7480A190F8B933035371913@OPEXCAUBMA2.corporate.adroot.infra.ftgroup> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="=_MailMate_F4BD8F69-706D-41D8-B022-F65769BD0C07_=" Archived-At: Subject: Re: [core] Genart last call review of draft-ietf-core-new-block-10 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 27 Apr 2021 23:11:43 -0000 --=_MailMate_F4BD8F69-706D-41D8-B022-F65769BD0C07_= Content-Type: text/plain; format=flowed; markup=markdown Thanks for the followup. Just to close the loop on some of these: On 26 Apr 2021, at 5:31, mohamed.boucadair@orange.com wrote: >> In section 4.4: >> >> I find this paragraph confusing: >> >> The requested missing block numbers MUST have an increasing block >> number in each additional Q-Block2 Option with no duplicates. The >> server SHOULD respond with a 4.00 (Bad Request) to requests not >> adhering to this behavior. >> >> So, given the SHOULD in the second sentence, it appears that the MUST >> in the first sentence doesn't apply to the server (i.e., to enforce >> this), but rather to the client doing the request. You should >> probably say it that way. > > [Med] Yes. This text should be linked to the previous paragraph when > the client issues the request for missing blocks. Anyway, I agree it > is better to be explicit here. Fixed. Excellent. Here's a purely editorial suggestion; entirely up to you whether to use it: The missing block numbers requested by the client MUST have an increasing block number in each additional Q-Block2 Option with no duplicates. >> Also, the SHOULD in the second sentence is >> not entirely clear to me: Are you saying that the server can choose >> to use some other response code, or are you saying that the server >> can accept the request and do something interesting with it? > > [Med] The latter. Normally the server must discard such request but > given that one of the target use cases for this spec is DDoS > mitigation, servers may be tolerant. Ah, OK, then what you have is correct as-is. >> In section 4.3: >> >> In several response code definitions: >> >> The token used MUST be any token that was received in a request >> using >> the same Request-Tag. >> >> That doesn't really parse well. I think you either mean "The token >> used MUST be a token" or you mean "The token used can be any token". >> > > [Med] The second para of this section specifies that all block > requests must use the same Request-Tag. The 4th para indicates that > each of these block requests will use a new token. The server must use > one of these tokens when replying. > > Updated the text as follows: > > NEW: > The token used MUST be one of the tokens that were received in a > request for this block-wise exchange. I like it. >> In section 7.2: >> >> For the server receiving NON Q-Block1 requests, it SHOULD send >> back a >> 2.31 (Continue) Response Code on receipt of all of the >> MAX_PAYLOADS >> payloads to prevent the client unnecessarily delaying. >> Otherwise... >> >> When you say "Otherwise", Do you mean, "For other payloads"? Either >> way, you should probably change that to make it clear. >> >> > [Med] Changed to: "If not all of the MAX_PAYLOADS payloads were > received, ..." Perfect. All of the others look fine. Thanks again for the quick reply. Cheers, pr -- Pete Resnick https://www.episteme.net/ All connections to the world are tenuous at best --=_MailMate_F4BD8F69-706D-41D8-B022-F65769BD0C07_= Content-Type: text/html Content-Transfer-Encoding: quoted-printable

Thanks for the followup. Just to close the loop on some o= f these:

On 26 Apr 2021, at 5:31, mohamed.boucadair@orange.com = wrote:

In section 4.4:

I find this paragraph confusing:

The requested missing block numbers MUST have an increasi= ng block
number in each additional Q-Block2 Option with no duplicates. The
server SHOULD respond with a 4.00 (Bad Request) to requests not
adhering to this behavior.

So, given the SHOULD in the second sentence, it appears t= hat the MUST
in the first sentence doesn't apply to the server (i.e., to enforce
this), but rather to the client doing the request. You should
probably say it that way.

[Med] Yes. This text should be linked to the previous par= agraph when the client issues the request for missing blocks. Anyway, I a= gree it is better to be explicit here. Fixed.

Excellent. Here's a purely editorial suggestion; entirely= up to you whether to use it:

The missing block=
 numbers requested by the client MUST have an
increasing block number in each additional Q-Block2 Option with no
duplicates.

Also, the SHOULD in the second sentence is
not entirely clear to me: Are you saying that the server can choose
to use some other response code, or are you saying that the server
can accept the request and do something interesting with it?

[Med] The latter. Normally the server must discard such r= equest but given that one of the target use cases for this spec is DDoS m= itigation, servers may be tolerant.

Ah, OK, then what you have is correct as-is.

In section 4.3:

In several response code definitions:

The token used MUST be any token that was received in a r= equest
using
the same Request-Tag.

That doesn't really parse well. I think you either mean "= The token
used MUST be a token" or you mean "The token used can be any token".

[Med] The second para of this section specifies that all = block requests must use the same Request-Tag. The 4th para indicates that= each of these block requests will use a new token. The server must use o= ne of these tokens when replying.

Updated the text as follows:

NEW:
The token used MUST be one of the tokens that were received in a request = for this block-wise exchange.

I like it.

In section 7.2:

For the server receiving NON Q-Block1 requests, it SHOULD= send
back a
2.31 (Continue) Response Code on receipt of all of the
MAX_PAYLOADS
payloads to prevent the client unnecessarily delaying.
Otherwise...

When you say "Otherwise", Do you mean, "For other payload= s"? Either
way, you should probably change that to make it clear.

[Med] Changed to: "If not all of the MAX_PAYLOADS payload= s were received, ..."

Perfect.

All of the others look fine. Thanks again for the quick r= eply.

Cheers,

pr

--
Pete Resnick https://www.episteme.net/
All connections to the world are tenuous at best

--=_MailMate_F4BD8F69-706D-41D8-B022-F65769BD0C07_=-- From nobody Tue Apr 27 21:52:06 2021 Return-Path: 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 3C0463A183C; Tue, 27 Apr 2021 21:52:04 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.117 X-Spam-Level: X-Spam-Status: No, score=-2.117 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_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, UNPARSEABLE_RELAY=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=orange.com 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 FTA4z0173vmb; Tue, 27 Apr 2021 21:51:59 -0700 (PDT) Received: from relais-inet.orange.com (relais-inet.orange.com [80.12.70.34]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 6D6603A183D; Tue, 27 Apr 2021 21:51:58 -0700 (PDT) Received: from opfednr02.francetelecom.fr (unknown [xx.xx.xx.66]) by opfednr23.francetelecom.fr (ESMTP service) with ESMTP id 4FVR7H21Tzz5xRf; Wed, 28 Apr 2021 06:51:55 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=orange.com; s=ORANGE001; t=1619585515; bh=NsT47S1ULPk9EdZxvCHaMOlvHvzV/DvuCbYZAEZ+7Vs=; h=From:To:Subject:Date:Message-ID:Content-Type:MIME-Version; b=s2lmU2BR9NSQHKpe9rrgr1bFnFpONLhjH9DiMpigDt1TqFC1vDFHh5u+awxiKHenQ HhJnRy6usN8x64S7QAUyQO+3f+zakDN6jk9Je2GtxrPbRQbW0Ec92fCwJyqwbnbJJm 6HC8pFi3/sOWnLBthRCAwK15aph6vxChuTZy34PzoPveZcRjd9sMNHz8k/mvHYvuxI NhXtvMgOqooz1qYJ9oMFUJ/nEvx68SGVu6ACLd5nMSWra7XYft09mWNOBF74/Il9K+ +zWgbODlNZwRjZBdR1FxK6n8DLjlIH7iQnrQu/GuuS+Mv5waZE4bDg7iHT1z71sc30 APiGl5s+U6tMg== Received: from Exchangemail-eme6.itn.ftgroup (unknown [xx.xx.13.26]) by opfednr02.francetelecom.fr (ESMTP service) with ESMTP id 4FVR7H0kqgz8sYR; Wed, 28 Apr 2021 06:51:55 +0200 (CEST) From: To: Pete Resnick CC: "last-call@ietf.org" , "gen-art@ietf.org" , "draft-ietf-core-new-block.all@ietf.org" , "core@ietf.org" Thread-Topic: [Last-Call] Genart last call review of draft-ietf-core-new-block-10 Thread-Index: AQHXO7reFX8E11iSokazYZcxuyxZOqrJXKsw Date: Wed, 28 Apr 2021 04:51:54 +0000 Message-ID: <23836_1619585515_6088E9EB_23836_261_1_787AE7BB302AE849A7480A190F8B933035373AF7@OPEXCAUBMA2.corporate.adroot.infra.ftgroup> References: <161930002269.19583.4502578348808948027@ietfa.amsl.com> <12236_1619433088_60869680_12236_240_2_787AE7BB302AE849A7480A190F8B933035371913@OPEXCAUBMA2.corporate.adroot.infra.ftgroup> <19B00980-0C0A-40D4-B40E-2096E9E137AB@episteme.net> In-Reply-To: <19B00980-0C0A-40D4-B40E-2096E9E137AB@episteme.net> Accept-Language: fr-FR, en-US Content-Language: fr-FR X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.114.13.247] Content-Type: multipart/alternative; boundary="_000_787AE7BB302AE849A7480A190F8B933035373AF7OPEXCAUBMA2corp_" MIME-Version: 1.0 Archived-At: Subject: Re: [core] [Last-Call] Genart last call review of draft-ietf-core-new-block-10 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 28 Apr 2021 04:52:04 -0000 --_000_787AE7BB302AE849A7480A190F8B933035373AF7OPEXCAUBMA2corp_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Pete, OK with the proposed editorial change. Fixed in the local copy. Thank you. Cheers, Med De : last-call [mailto:last-call-bounces@ietf.org] De la part de Pete Resni= ck Envoy=E9 : mercredi 28 avril 2021 01:11 =C0 : BOUCADAIR Mohamed TGI/OLN Cc : last-call@ietf.org; gen-art@ietf.org; draft-ietf-core-new-block.all@ie= tf.org; core@ietf.org Objet : Re: [Last-Call] Genart last call review of draft-ietf-core-new-bloc= k-10 Thanks for the followup. Just to close the loop on some of these: On 26 Apr 2021, at 5:31, mohamed.boucadair@orange.com wrote: In section 4.4: I find this paragraph confusing: The requested missing block numbers MUST have an increasing block number in each additional Q-Block2 Option with no duplicates. The server SHOULD respond with a 4.00 (Bad Request) to requests not adhering to this behavior. So, given the SHOULD in the second sentence, it appears that the MUST in the first sentence doesn't apply to the server (i.e., to enforce this), but rather to the client doing the request. You should probably say it that way. [Med] Yes. This text should be linked to the previous paragraph when the cl= ient issues the request for missing blocks. Anyway, I agree it is better to= be explicit here. Fixed. Excellent. Here's a purely editorial suggestion; entirely up to you whether= to use it: The missing block numbers requested by the client MUST have an increasing block number in each additional Q-Block2 Option with no duplicates. Also, the SHOULD in the second sentence is not entirely clear to me: Are you saying that the server can choose to use some other response code, or are you saying that the server can accept the request and do something interesting with it? [Med] The latter. Normally the server must discard such request but given t= hat one of the target use cases for this spec is DDoS mitigation, servers m= ay be tolerant. Ah, OK, then what you have is correct as-is. In section 4.3: In several response code definitions: The token used MUST be any token that was received in a request using the same Request-Tag. That doesn't really parse well. I think you either mean "The token used MUST be a token" or you mean "The token used can be any token". [Med] The second para of this section specifies that all block requests mus= t use the same Request-Tag. The 4th para indicates that each of these block= requests will use a new token. The server must use one of these tokens whe= n replying. Updated the text as follows: NEW: The token used MUST be one of the tokens that were received in a request fo= r this block-wise exchange. I like it. In section 7.2: For the server receiving NON Q-Block1 requests, it SHOULD send back a 2.31 (Continue) Response Code on receipt of all of the MAX_PAYLOADS payloads to prevent the client unnecessarily delaying. Otherwise... When you say "Otherwise", Do you mean, "For other payloads"? Either way, you should probably change that to make it clear. [Med] Changed to: "If not all of the MAX_PAYLOADS payloads were received, .= .." Perfect. All of the others look fine. Thanks again for the quick reply. Cheers, pr -- Pete Resnick https://www.episteme.net/ All connections to the world are tenuous at best ___________________________________________________________________________= ______________________________________________ Ce message et ses pieces jointes peuvent contenir des informations confiden= tielles ou privilegiees et ne doivent donc pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu= ce message par erreur, veuillez le signaler a l'expediteur et le detruire ainsi que les pieces jointes. Les messages el= ectroniques etant susceptibles d'alteration, Orange decline toute responsabilite si ce message a ete altere, deforme ou = falsifie. Merci. This message and its attachments may contain confidential or privileged inf= ormation that may be protected by law; they should not be distributed, used or copied without authorisation. If you have received this email in error, please notify the sender and dele= te this message and its attachments. As emails may be altered, Orange is not liable for messages that have been = modified, changed or falsified. Thank you. --_000_787AE7BB302AE849A7480A190F8B933035373AF7OPEXCAUBMA2corp_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Hi Pete,

 

OK with the proposed editorial change. Fixed= in the local copy.

 

Thank you.

 

Cheers,

Med

 

De : la= st-call [mailto:last-call-bounces@ietf.org] De la part de Pete Resnick
Envoy=E9 : mercredi 28 avril 2021 01:11
=C0 : BOUCADAIR Mohamed TGI/OLN <mohamed.boucadair@orange.co= m>
Cc : last-call@ietf.org; gen-art@ietf.org; draft-ietf-core-new-= block.all@ietf.org; core@ietf.org
Objet : Re: [Last-Call] Genart last call review of draft-ietf-c= ore-new-block-10

 

Thanks for the = followup. Just to close the loop on some of these:

On 26 Apr 2021,= at 5:31, mohamed.boucadair@orange.com wrote= :

I= n section 4.4:

I= find this paragraph confusing:

T= he requested missing block numbers MUST have an increasing block
number in each additional Q-Block2 Option with no duplicates. The
server SHOULD respond with a 4.00 (Bad Request) to requests not
adhering to this behavior.

S= o, given the SHOULD in the second sentence, it appears that the MUST
in the first sentence doesn't apply to the server (i.e., to enforce
this), but rather to the client doing the request. You should
probably say it that way.

[= Med] Yes. This text should be linked to the previous paragraph when the cli= ent issues the request for missing blocks. Anyway, I agree it is better to = be explicit here. Fixed.

Excellent. Here= 's a purely editorial suggestion; entirely up to you whether to use it:

The missing block numbers requested by the client MUST have =
an
increasing block number in each additional Q-B=
lock2 Option with no
duplicates.

A= lso, the SHOULD in the second sentence is
not entirely clear to me: Are you saying that the server can choose
to use some other response code, or are you saying that the server
can accept the request and do something interesting with it?

[= Med] The latter. Normally the server must discard such request but given th= at one of the target use cases for this spec is DDoS mitigation, servers ma= y be tolerant.

Ah, OK, then wh= at you have is correct as-is.

I= n section 4.3:

I= n several response code definitions:

T= he token used MUST be any token that was received in a request
using
the same Request-Tag.

T= hat doesn't really parse well. I think you either mean "The token
used MUST be a token" or you mean "The token used can be any toke= n".

[= Med] The second para of this section specifies that all block requests must= use the same Request-Tag. The 4th para indicates that each of these block = requests will use a new token. The server must use one of these tokens when replying.

U= pdated the text as follows:

N= EW:
The token used MUST be one of the tokens that were received in a request fo= r this block-wise exchange.

I like it.=

I= n section 7.2:

F= or the server receiving NON Q-Block1 requests, it SHOULD send
back a
2.31 (Continue) Response Code on receipt of all of the
MAX_PAYLOADS
payloads to prevent the client unnecessarily delaying.
Otherwise...

W= hen you say "Otherwise", Do you mean, "For other payloads&qu= ot;? Either
way, you should probably change that to make it clear.

[= Med] Changed to: "If not all of the MAX_PAYLOADS payloads were receive= d, ..."

Perfect.

All of the othe= rs look fine. Thanks again for the quick reply.

Cheers,

pr

--
Pete Resnick https://www.episteme.net/
All connections to the world are tenuous at best

______________________________________________________________________=
___________________________________________________

Ce message et ses pieces jointes peuvent contenir des informations confiden=
tielles ou privilegiees et ne doivent donc
pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu=
 ce message par erreur, veuillez le signaler
a l'expediteur et le detruire ainsi que les pieces jointes. Les messages el=
ectroniques etant susceptibles d'alteration,
Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.

This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law;
they should not be distributed, used or copied without authorisation.
If you have received this email in error, please notify the sender and dele=
te this message and its attachments.
As emails may be altered, Orange is not liable for messages that have been =
modified, changed or falsified.
Thank you.
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ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 3D7263A22FC; Wed, 28 Apr 2021 03:02:13 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: core@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 7.28.0 Auto-Submitted: auto-generated Precedence: bulk Reply-To: core@ietf.org Message-ID: <161960413321.26263.2432841437984152337@ietfa.amsl.com> Date: Wed, 28 Apr 2021 03:02:13 -0700 Archived-At: Subject: [core] I-D Action: draft-ietf-core-new-block-11.txt X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.29 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 28 Apr 2021 10:02:13 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Constrained RESTful Environments WG of the IETF. Title : Constrained Application Protocol (CoAP) Block-Wise Transfer Options for Faster Transmission Authors : Mohamed Boucadair Jon Shallow Filename : draft-ietf-core-new-block-11.txt Pages : 45 Date : 2021-04-28 Abstract: This document specifies alternative Constrained Application Protocol (CoAP) Block-Wise transfer options: Q-Block1 and Q-Block2 Options. These options are similar to the CoAP Block1 and Block2 Options defined in RFC 7959, not a replacement for them, but do enable faster transmission rates for large amounts of data with less packet interchanges. Also, Q-Block1 and Q-Block2 Options support faster recovery should any of the blocks get lost in transmission. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-core-new-block/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-core-new-block-11 https://datatracker.ietf.org/doc/html/draft-ietf-core-new-block-11 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-core-new-block-11 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Wed Apr 28 05:04:18 2021 Return-Path: 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 6F44F3A27D2 for ; Wed, 28 Apr 2021 05:04:16 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.801 X-Spam-Level: X-Spam-Status: No, score=-2.801 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, MSGID_FROM_MTA_HEADER=0.001, NICE_REPLY_A=-0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=ri.se 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 EEmuvSeTIZ17 for ; 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boundary="HDrXBRC7ACwxCV0bUi7LB9Ado4UEwvXBd"; protected-headers="v1" From: Marco Tiloca To: "core@ietf.org WG (core@ietf.org)" Message-ID: <69df215a-b7de-c837-75ee-d118af8b9304@ri.se> Subject: Re: [core] CoRE WG Virtual Interim 2021-04-28 References: <9c14ea30-3f76-f840-7e7b-901dcb1c8678@ri.se> In-Reply-To: <9c14ea30-3f76-f840-7e7b-901dcb1c8678@ri.se> --HDrXBRC7ACwxCV0bUi7LB9Ado4UEwvXBd Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable Content-Language: en-US Dear all, Just a reminder that we are having our virtual interim meeting in=20 slightly less than 2 hours [1]. Please find below the information to join. Best, Marco and Jaime [1] https://datatracker.ietf.org/meeting/interim-2021-core-04/session/cor= e =3D=3D=3D Meeting Information =3D=3D=3D Jabber: core@jabber.ietf.org Etherpad: https://codimd.ietf.org/notes-ietf-interim-2021-core-04-core Meeting link:=20 https://ietf.webex.com/ietf/j.php?MTID=3Dm888a990760425271a1327f53c6714b0= 7 Meeting number: 185 248 9231 Password: constrained More ways to join Join by video system Dial 1852489231@ietf.webex.com You can also dial 173.243.2.68 and enter your meeting number. Join by phone 1-650-479-3208 Call-in number (US/Canada) Access code: 185 248 9231 On 2021-04-21 18:07, Marco Tiloca wrote: > Dear all, > > Just a reminder that we'll have a virtual interim meeting on=20 > Wednesday, April 28th at 14:00 UTC. The agenda is available at [1]. > > Best, > Marco and Jaime > > [1]=20 > https://datatracker.ietf.org/meeting/interim-2021-core-04/session/core > --=20 Marco Tiloca Ph.D., Senior Researcher Division: Digital System Department: Computer Science Unit: Cybersecurity RISE Research Institutes of Sweden https://www.ri.se Phone: +46 (0)70 60 46 501 Isafjordsgatan 22 / Kistag=C3=A5ngen 16 SE-164 40 Kista (Sweden) --HDrXBRC7ACwxCV0bUi7LB9Ado4UEwvXBd-- --LFCLu8mFVXPsgInjotoXenBXI2gAI59ax Content-Type: application/pgp-signature; name="OpenPGP_signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="OpenPGP_signature" -----BEGIN PGP SIGNATURE----- wsB5BAABCAAjFiEEOEo4cV326Z7GypVg7iZktA5Y2kMFAmCJTzUFAwAAAAAACgkQ7iZktA5Y2kPu QwgAro/rPSwqH9AJrQmcZH+nFAjozFmsfPmcXWc+oNxP959aSjhe9XJzs84Sj2xq1tVlp2rLHHgC OAwJuX8xz8AYQV4glPiKE1tT/MgAgAx0cZGiTNIAnsDW6sME7lpnV3lZZSfWEjAZo/ycAPfNtrQ6 qRPhWy4QH0JUiAbcHQThk4jVM1ZHlFvJB4peEPmco/02FZ5UJv2NWIbh9dHDSmfahn3aAyu+FfjS 0Celc8/Rx4rSSsujuyyytfbAcv0H3sA/GZFST8/mT1rTCFfZRjIseaiX1gwPYygiYPEr33keHmjL W1QOsIVa5FdBvr7+xxbmfllKoL9QKotuzDkeY5HmiA== =PeZG -----END PGP SIGNATURE----- --LFCLu8mFVXPsgInjotoXenBXI2gAI59ax-- From nobody Wed Apr 28 14:54:36 2021 Return-Path: X-Original-To: core@ietf.org Delivered-To: core@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 87D0B3A21EF; Wed, 28 Apr 2021 14:54:34 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: Colin Perkins via Datatracker To: Cc: core@ietf.org, draft-ietf-core-new-block.all@ietf.org, last-call@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 7.28.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <161964687448.26837.8092317722890333336@ietfa.amsl.com> Reply-To: Colin Perkins Date: Wed, 28 Apr 2021 14:54:34 -0700 Archived-At: Subject: [core] Tsvart last call review of draft-ietf-core-new-block-11 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.29 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 28 Apr 2021 21:54:35 -0000 Reviewer: Colin Perkins Review result: Ready with Issues This document has been reviewed as part of the transport area review team's ongoing effort to review key IETF documents. These comments were written primarily for the transport area directors, but are copied to the document's authors and WG to allow them to address any issues raised and also to the IETF discussion list for information. When done at the time of IETF Last Call, the authors should consider this review as part of the last-call comments they receive. Please always CC tsv-art@ietf.org if you reply to or forward this review. Thank you for preparing such a clearly written, precise, specification. On the whole, this is very good. I just have some minor issues to consider. Section 4.1 says “To indicate support for Q-Block2 responses, the CoAP client MUST include the Q-Block2 Option in a GET or similar request (FETCH, for example), the Q-Block2 Option in a PUT or similar request, or the Q-Block1 Option in a PUT or similar request so that the server knows that the client supports this Q-Block functionality” – It would be useful to enumerate what are “similar” requests. Section 5: “Such messages must not be treated by the client as a fatal error“ - I was surprised this is not a normative MUST NOT. Section 7.1: “For faster transmission rates, NSTART will need to be increased from 1. However, the other CON congestion control parameters will need to be tuned to cover this change. This tuning is out of scope of this document as it is expected that all requests and responses using Q-Block1 and Q-Block2 will be Non-confirmable (Section 3.2).” - The way this is phrased is difficult to parse. I can interpret it as saying that the transmission rate *does* need to be faster, so implementations need to increase NSTART and tune the other parameters. Alternatively, I can interpret this as saying that *if* the transmission needs to be faster, then NSTART and the other parameters need to be tuned in some as-yet-unspecified way. The text would benefit from being rephrased to clarify which meaning is intended. What happens when NSTART is increased beyond 1, and how the other parameters are tuned, is unclear. The text would be better if it either cross-referenced to the definition of how the parameters are to be tuned, or explicitly stated that this is not yet supported and will need to be defined in some future extension. In Section 7.2, I’m not convinced by the argument to set MAX_PAYLOAD to 10 for similar reasons to RFC 6928. The types of link layer that CoAP runs over are very different to those measured to support the increase in TCP’s initial window. An argument based on typical properties of links and buffer space in networks used by CoAP would be more convincing (I accept that using MAX_PAYLOAD of 10 is not going to do any significant harm, even if it is higher than optimal). Section 7.2 also notes that “PROBING_RATE and other transmission parameters are negotiated between peers”. It would be appropriate to give some guidance on what are the bounds for safe values that can be negotiated for these parameters. Section 7.2 says: > As the sending of many payloads of a single body may itself cause > congestion, it is RECOMMENDED that after transmission of every set of > MAX_PAYLOADS payloads of a single body, a delay is introduced of > NON_TIMEOUT before sending the next set of payloads to manage > potential congestion issues. and the following paragraph has guidance for reducing MAX_PAYLOADS if persistent congestion occurs “for at least a 24 hour period and it is known that there are no other network issues over that period”. It’s not clear how an implementation will know about other network issues, and I would suggest that even if there are such issues, backoff would be appropriate given persistent congestion. Finally, is there are mechanism for gradually recovering MAX_PAYLOADS to its original value, if persistent loss ceases for some period? 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l0qC4vY/Vo9/hj2laxFcV5zJw2/RUb9ZXgUGibC1m/7fZQAVh+ayJVkyxBdeX+e8NT VWgb7tK05jNUw== Received: from Exchangemail-eme6.itn.ftgroup (unknown [xx.xx.13.92]) by opfednr06.francetelecom.fr (ESMTP service) with ESMTP id 4FW5m03pvDzDq8n; Thu, 29 Apr 2021 08:52:32 +0200 (CEST) From: To: Colin Perkins , "tsv-art@ietf.org" CC: "core@ietf.org" , "draft-ietf-core-new-block.all@ietf.org" , "last-call@ietf.org" Thread-Topic: Tsvart last call review of draft-ietf-core-new-block-11 Thread-Index: AQHXPHkVRkejB4Kn+k2ZJQYtAcqcVKrK9s4w Date: Thu, 29 Apr 2021 06:52:31 +0000 Message-ID: <32001_1619679152_608A57B0_32001_95_1_787AE7BB302AE849A7480A190F8B93303537462E@OPEXCAUBMA2.corporate.adroot.infra.ftgroup> References: <161964687448.26837.8092317722890333336@ietfa.amsl.com> In-Reply-To: <161964687448.26837.8092317722890333336@ietfa.amsl.com> Accept-Language: fr-FR, en-US Content-Language: fr-FR X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.114.13.245] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Subject: Re: [core] Tsvart last call review of draft-ietf-core-new-block-11 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 Apr 2021 06:52:41 -0000 SGkgQ29saW4sDQoNClRoYW5rIHlvdSBmb3IgdGhlIHJldmlldy4gDQoNClBsZWFzZSBzZWUgaW5s aW5lLg0KDQpDaGVlcnMsDQpNZWQNCg0KPiAtLS0tLU1lc3NhZ2UgZCdvcmlnaW5lLS0tLS0NCj4g RGXCoDogQ29saW4gUGVya2lucyB2aWEgRGF0YXRyYWNrZXIgW21haWx0bzpub3JlcGx5QGlldGYu b3JnXQ0KPiBFbnZvecOpwqA6IG1lcmNyZWRpIDI4IGF2cmlsIDIwMjEgMjM6NTUNCj4gw4DCoDog dHN2LWFydEBpZXRmLm9yZw0KPiBDY8KgOiBjb3JlQGlldGYub3JnOyBkcmFmdC1pZXRmLWNvcmUt bmV3LWJsb2NrLmFsbEBpZXRmLm9yZzsgbGFzdC0NCj4gY2FsbEBpZXRmLm9yZw0KPiBPYmpldMKg OiBUc3ZhcnQgbGFzdCBjYWxsIHJldmlldyBvZiBkcmFmdC1pZXRmLWNvcmUtbmV3LWJsb2NrLTEx 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LTJhZGVjMjFmMDM3MjM3NzEmcT0xJmU9ZGM2MDkzMzEtNmIyZi00OTBjLWI1NDUtZjkzN2M3MDNm MDY1JnU9aHR0cHMlM0ElMkYlMkZ3d3cucmkuc2UlMkYNCg0KUGhvbmU6ICs0NiAoMCk3MCA2MCA0 NiA1MDENCklzYWZqb3Jkc2dhdGFuIDIyIC8gS2lzdGFnw6VuZ2VuIDE2DQpTRS0xNjQgNDAgS2lz dGEgKFN3ZWRlbikNCg0KDQoNCg== From nobody Thu Apr 29 16:23:39 2021 Return-Path: X-Original-To: core@ietf.org Delivered-To: core@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 15F9C3A1792; Thu, 29 Apr 2021 16:23:37 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Martin Duke via Datatracker To: "The IESG" Cc: draft-ietf-core-new-block@ietf.org, core-chairs@ietf.org, core@ietf.org, marco.tiloca@ri.se, marco.tiloca@ri.se X-Test-IDTracker: no X-IETF-IDTracker: 7.28.0 Auto-Submitted: auto-generated Precedence: bulk Reply-To: Martin Duke Message-ID: <161973861706.19975.3092798532288165336@ietfa.amsl.com> Date: Thu, 29 Apr 2021 16:23:37 -0700 Archived-At: Subject: [core] Martin Duke's Discuss on draft-ietf-core-new-block-11: (with DISCUSS and COMMENT) X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.29 List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 Apr 2021 23:23:37 -0000 Martin Duke has entered the following ballot position for draft-ietf-core-new-block-11: Discuss When responding, please keep the subject line intact and reply to all email addresses included in the To and CC lines. (Feel free to cut this introductory paragraph, however.) Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html for more information about DISCUSS and COMMENT positions. The document, along with other ballot positions, can be found here: https://datatracker.ietf.org/doc/draft-ietf-core-new-block/ ---------------------------------------------------------------------- DISCUSS: ---------------------------------------------------------------------- I am concerned about the convergence of three different provisions in this spec: - In (4.1), it says "To reliably get a rejection message, it is therefore REQUIRED that clients use a Confirmable message for determining support for Q-Block1 and Q-Block2 Options." IIUC this mandates that at least one request will use CON. - (7.1): all the blocks of a single body over an unreliable transport MUST either all be Confirmable or all be Non- confirmable. - (7.2) However, the other CON congestion control parameters will need to be tuned to cover this change. This tuning is out of scope of this document as it is expected that all requests and responses using Q-Block1 and Q-Block2 will be Non- confirmable (Section 3.2). I can't reconcile (4.1) with the last sentence in (7.2). Moreover, if my reading of (4.1) is correct, it's not sufficient to declare congestion control guidance out of scope when it's a mandated part of the protocol. ---------------------------------------------------------------------- COMMENT: ---------------------------------------------------------------------- Thank you for the examples. They were useful in providing an overview of the protocol. Thanks also to Colin Perkins for an especially thoughtful TSVART review. Please address his comments, although his concerns about (7.1) are IMO mostly subsumed by my DISCUSS. - It would be useful to introduce the "token", "request tag", and "Etag" concepts before using them. Reading front-to-back, I spent most of Section 4 confused. - (4.4) It would be useful to state that clients MUST (SHOULD?) NOT request retransmission of blocks from ETags that are not "fresh" -- IIUC, they probably don't exist anymore, and anyway the server has no way of knowing which non-fresh ETag to serve beacuse it says "The ETag Option should not be used in the request for missing blocks" BTW, s/should/SHOULD - (7.2) If NON_PROBING_WAIT and NON_PARTIAL_TIMEOUT both "have the same value as computed for EXCHANGE_LIFETIME", why are they different variables? Or is that they SHOULD have the same value but might not? A normative word would be helpful here. From nobody Fri Apr 30 04:02:52 2021 Return-Path: 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 E05A83A1078; Fri, 30 Apr 2021 04:02:50 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.099 X-Spam-Level: X-Spam-Status: No, score=-2.099 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_DNSWL_BLOCKED=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=csperkins.org 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 4MVYF-Ztj4jw; Fri, 30 Apr 2021 04:02:45 -0700 (PDT) Received: from balrog.mythic-beasts.com (balrog.mythic-beasts.com [IPv6:2a00:1098:0:82:1000:0:2:1]) (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 AB4DB3A1075; Fri, 30 Apr 2021 04:02:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=csperkins.org; s=mythic-beasts-k1; h=Date:Subject:To:From; bh=LvphK9TTxb4T17YQnOFNZfgRTLUsGZfWB2KEyhn/w+s=; b=ywD8Kh8aiDTEpeLG9+3iA2Qafj SOPdYDXbJ52k+HLoc4SVbbh0Yx44YjntYuFYL3OucNP/IocypDvP3rczg21td9/zzguMmxYhXFDKu +oBLKCvErBvmtVB9/vtFln96Y85zrqNq7pKjSx7wheZpSL3nTjiY8oQioXm1HOSg8hqN4oKPgU54D 4xmktm6qCW9MPdmZjy/LDRcno36beVVFrctZw4PfPejfgaKtDpIeflsiikj6LnpnKCHcsPG7LrIwU NIKf5GyItZd66EsZjAbtsotdrBUwhHJ7dBjiDM3vS6+SMsgbZ3yhTcXrYwftXxhCmY7WPMXZRatb1 GVN07bBQ==; Received: from [81.187.2.149] (port=42659 helo=[192.168.0.69]) by balrog.mythic-beasts.com with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92.3) (envelope-from ) id 1lcQus-0005PG-Bp; Fri, 30 Apr 2021 12:02:42 +0100 From: Colin Perkins To: mohamed.boucadair@orange.com Cc: tsv-art@ietf.org, core@ietf.org, draft-ietf-core-new-block.all@ietf.org, last-call@ietf.org Date: Fri, 30 Apr 2021 12:02:29 +0100 X-Mailer: MailMate Trial (1.14r5798) Message-ID: <53FBD74C-D8CF-41B9-A67D-836760FE111B@csperkins.org> In-Reply-To: <32001_1619679152_608A57B0_32001_95_1_787AE7BB302AE849A7480A190F8B93303537462E@OPEXCAUBMA2.corporate.adroot.infra.ftgroup> References: <161964687448.26837.8092317722890333336@ietfa.amsl.com> <32001_1619679152_608A57B0_32001_95_1_787AE7BB302AE849A7480A190F8B93303537462E@OPEXCAUBMA2.corporate.adroot.infra.ftgroup> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-BlackCat-Spam-Score: 0 Archived-At: Subject: Re: [core] Tsvart last call review of draft-ietf-core-new-block-11 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 30 Apr 2021 11:02:51 -0000 Hi, [inline] On 29 Apr 2021, at 7:52, mohamed.boucadair@orange.com wrote: > Hi Colin, > > Thank you for the review. > > Please see inline. > > Cheers, > Med > >> -----Message d'origine----- >> De : Colin Perkins via Datatracker [mailto:noreply@ietf.org] >> Envoyé : mercredi 28 avril 2021 23:55 >> À : tsv-art@ietf.org >> Cc : core@ietf.org; draft-ietf-core-new-block.all@ietf.org; last- >> call@ietf.org >> Objet : Tsvart last call review of draft-ietf-core-new-block-11 >> >> Reviewer: Colin Perkins >> Review result: Ready with Issues >> >> This document has been reviewed as part of the transport area review >> team's ongoing effort to review key IETF documents. These comments >> were written primarily for the transport area directors, but are >> copied to the document's authors and WG to allow them to address any >> issues raised and also to the IETF discussion list for information. >> >> When done at the time of IETF Last Call, the authors should consider >> this review as part of the last-call comments they receive. Please >> always CC tsv-art@ietf.org if you reply to or forward this review. >> >> Thank you for preparing such a clearly written, precise, >> specification. On the whole, this is very good. I just have some >> minor issues to consider. > > [Med] Thanks. > >> >> Section 4.1 says “To indicate support for Q-Block2 responses, the >> CoAP client MUST include the Q-Block2 Option in a GET or similar >> request (FETCH, for example), the Q-Block2 Option in a PUT or similar >> request, or the Q-Block1 Option in a PUT or similar request so that >> the server knows that the client supports this Q-Block >> functionality” >> – It would be useful to enumerate what are “similar” requests. > > [Med] Argh, I thought we added an example as we did for GET. Thanks > for catching this. We can cite POST or PATCH. Thanks. >> Section 5: “Such messages must not be treated by the client as a >> fatal error“ >> - I was surprised this is not a normative MUST NOT. > > [Med] We don't use the normative language here as we though this is > implicitly covered by the behavior in 4.3 where we indicate that the > client retransmits the missing blocks when such error is received. Yes, it probably is implicitly covered. My underlying concern here is that the draft seems a little inconsistent about when it uses the RFC 2119 normative language and when it doesn’t. There are a few places where I see “must not” and wonder why it’s not “MUST NOT”, and this was the most striking example. >> Section 7.1: “For faster transmission rates, NSTART will need to be >> increased from 1. However, the other CON congestion control >> parameters will need to be tuned to cover this change. This tuning >> is out of scope of this document as it is expected that all requests >> and responses using Q-Block1 and Q-Block2 will be Non-confirmable >> (Section 3.2).” - The way this is phrased is difficult to parse. >> I can interpret it as saying that the transmission rate *does* need >> to be faster, so implementations need to increase NSTART and tune the >> other parameters. >> Alternatively, I can interpret this as saying that *if* the >> transmission needs to be faster, then NSTART and the other parameters >> need to be tuned in some as-yet-unspecified way. The text would >> benefit from being rephrased to clarify which meaning is intended. >> >> What happens when NSTART is increased beyond 1, and how the other >> parameters are tuned, is unclear. The text would be better if it >> either cross-referenced to the definition of how the parameters are >> to be tuned, or explicitly stated that this is not yet supported and >> will need to be defined in some future extension. > > [Med] Updated as follows: > > OLD: > Congestion control for CON requests and responses is specified in > Section 4.7 of [RFC7252]. For faster transmission rates, NSTART > will > need to be increased from 1. However, the other CON congestion > control parameters will need to be tuned to cover this change. > This > tuning is out of scope of this document as it is expected that all > requests and responses using Q-Block1 and Q-Block2 will be Non- > confirmable (Section 3.2). > > NEW: > Congestion control for CON requests and responses is specified in > Section 4.7 of [RFC7252]. In order to benefit from faster > transmission rates, NSTART will need to be increased from 1. > However, the other CON congestion control parameters will need to > be > tuned to cover this change. This tuning is not specified in this > document given that the applicability scope of the current > specification assumes that all requests and responses > using Q-Block1 and Q-Block2 will be Non-confirmable (Section 3.2). Clearer, thanks. >> >> In Section 7.2, I’m not convinced by the argument to set >> MAX_PAYLOAD >> to 10 for similar reasons to RFC 6928. The types of link layer that >> CoAP runs over are very different to those measured to support the >> increase in TCP’s initial window. An argument based on typical >> properties of links and buffer space in networks used by CoAP would >> be more convincing (I accept that using MAX_PAYLOAD of 10 is not >> going to do any significant harm, even if it is higher than optimal). > > [Med] Actually we set it to 10 as the applicability scope of this spec > is DOTS which runs in environments similar to those of 6928. Please > see Section 3.2. This would be a lot clearer if Section 3.2 were cross-referenced, and a reminder of the limited applicability of this specification was added to Section 7.2. >> Section 7.2 also notes that “PROBING_RATE and other transmission >> parameters are negotiated between peers”. It would be appropriate >> to >> give some guidance on what are the bounds for safe values that can be >> negotiated for these parameters. > > [Med] I'm afraid this is out of the scope of this spec. The intent of > this note is to provide an example of an application that negotiates > these parameters. Some of these details can be found in in > rfc8782#section-4.5.2 mentioned in the text you quoted. Makes sense, although I wonder if the text in Section 7.2 might be more clearly written “The DOTS application uses customised defaults for PROBING_RATE and other transmission parameters, as discussed in Section 4.5.2 of [RFC8782], that are negotiated between peers”? >> Section 7.2 says: >> >>> As the sending of many payloads of a single body may itself cause >>> congestion, it is RECOMMENDED that after transmission of every >> set of >>> MAX_PAYLOADS payloads of a single body, a delay is introduced of >>> NON_TIMEOUT before sending the next set of payloads to manage >>> potential congestion issues. >> >> and the following paragraph has guidance for reducing MAX_PAYLOADS if >> persistent congestion occurs “for at least a 24 hour period and it >> is >> known that there are no other network issues over that period”. >> It’s >> not clear how an implementation will know about other network issues, > > [Med] An example is a DDoS attack. Made this change: s/about other > network issues/about other network issues (e.g., DDoS attacks) Makes sense, thanks. >> and I would suggest that even if there are such issues, backoff would >> be appropriate given persistent congestion. >> >> Finally, is there are mechanism for gradually recovering MAX_PAYLOADS >> to its original value, if persistent loss ceases for some period? >> > > [Med] This is covered by the configuration refresh/negotiation > mechanism. The peers will refresh the configuration parameters > following, for example, I-D.bosh-dots-quick-blocks. Might be worth stating that in the draft? Cheers, Colin From nobody Fri Apr 30 04:49:03 2021 Return-Path: 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 3D97A3A1266; Fri, 30 Apr 2021 04:49:01 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.818 X-Spam-Level: X-Spam-Status: No, score=-2.818 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_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, UNPARSEABLE_RELAY=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=orange.com 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 tsz63_B8duOM; Fri, 30 Apr 2021 04:48:56 -0700 (PDT) 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Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Subject: Re: [core] Martin Duke's Discuss on draft-ietf-core-new-block-11: (with DISCUSS and COMMENT) X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 30 Apr 2021 11:49:01 -0000 SGkgTWFydGluLCANCg0KVGhhbmsgeW91IGZvciB0aGUgcmV2aWV3LiBUaGUgY2hhbmdlcyBjYW4g YmUgdHJhY2tlZCBhdDogaHR0cHM6Ly90aW55dXJsLmNvbS9uZXctYmxvY2stbGF0ZXN0LiANCg0K UGxlYXNlIHNlZSBpbmxpbmUuDQoNCkNoZWVycywNCk1lZA0KDQo+IC0tLS0tTWVzc2FnZSBkJ29y aWdpbmUtLS0tLQ0KPiBEZcKgOiBNYXJ0aW4gRHVrZSB2aWEgRGF0YXRyYWNrZXIgW21haWx0bzpu b3JlcGx5QGlldGYub3JnXQ0KPiBFbnZvecOpwqA6IHZlbmRyZWRpIDMwIGF2cmlsIDIwMjEgMDE6 MjQNCj4gw4DCoDogVGhlIElFU0cgPGllc2dAaWV0Zi5vcmc+DQo+IENjwqA6IGRyYWZ0LWlldGYt 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4FWt8Z6sfnz8sYn; Fri, 30 Apr 2021 15:13:02 +0200 (CEST) From: To: Colin Perkins CC: "tsv-art@ietf.org" , "core@ietf.org" , "draft-ietf-core-new-block.all@ietf.org" , "last-call@ietf.org" Thread-Topic: Tsvart last call review of draft-ietf-core-new-block-11 Thread-Index: AQHXPbBYH8Yl+HsopE691vYfsp0InarM7XGw Date: Fri, 30 Apr 2021 13:13:01 +0000 Message-ID: <32339_1619788383_608C025E_32339_340_7_787AE7BB302AE849A7480A190F8B93303537522B@OPEXCAUBMA2.corporate.adroot.infra.ftgroup> References: <161964687448.26837.8092317722890333336@ietfa.amsl.com> <32001_1619679152_608A57B0_32001_95_1_787AE7BB302AE849A7480A190F8B93303537462E@OPEXCAUBMA2.corporate.adroot.infra.ftgroup> <53FBD74C-D8CF-41B9-A67D-836760FE111B@csperkins.org> In-Reply-To: <53FBD74C-D8CF-41B9-A67D-836760FE111B@csperkins.org> Accept-Language: fr-FR, en-US Content-Language: fr-FR X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.114.13.245] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Subject: Re: [core] Tsvart last call review of draft-ietf-core-new-block-11 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 30 Apr 2021 13:13:10 -0000 SGkgQ29saW4sIA0KDQpQbGVhc2Ugc2VlIGlubGluZS4gKHJlbW92ZWQgaXRlbXMgdGhhdCBhcmUg YWRkcmVzc2VkKQ0KDQpDaGVlcnMsDQpNZWQNCg0KUFM6IFRoZSBjaGFuZ2VzIGNhbiBiZSB0cmFj a2VkIGhlcmU6IGh0dHBzOi8vdGlueXVybC5jb20vbmV3LWJsb2NrLWxhdGVzdCANCg0KPiAtLS0t LU1lc3NhZ2UgZCdvcmlnaW5lLS0tLS0NCj4gRGXCoDogQ29saW4gUGVya2lucyBbbWFpbHRvOmNz cEBjc3BlcmtpbnMub3JnXQ0KPiBFbnZvecOpwqA6IHZlbmRyZWRpIDMwIGF2cmlsIDIwMjEgMTM6 MDINCj4gw4DCoDogQk9VQ0FEQUlSIE1vaGFtZWQgVEdJL09MTiA8bW9oYW1lZC5ib3VjYWRhaXJA b3JhbmdlLmNvbT4NCj4gQ2PCoDogdHN2LWFydEBpZXRmLm9yZzsgY29yZUBpZXRmLm9yZzsgZHJh ZnQtaWV0Zi1jb3JlLW5ldy0NCj4gYmxvY2suYWxsQGlldGYub3JnOyBsYXN0LWNhbGxAaWV0Zi5v 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X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KCkNlIG1l c3NhZ2UgZXQgc2VzIHBpZWNlcyBqb2ludGVzIHBldXZlbnQgY29udGVuaXIgZGVzIGluZm9ybWF0 aW9ucyBjb25maWRlbnRpZWxsZXMgb3UgcHJpdmlsZWdpZWVzIGV0IG5lIGRvaXZlbnQgZG9uYwpw YXMgZXRyZSBkaWZmdXNlcywgZXhwbG9pdGVzIG91IGNvcGllcyBzYW5zIGF1dG9yaXNhdGlvbi4g U2kgdm91cyBhdmV6IHJlY3UgY2UgbWVzc2FnZSBwYXIgZXJyZXVyLCB2ZXVpbGxleiBsZSBzaWdu YWxlcgphIGwnZXhwZWRpdGV1ciBldCBsZSBkZXRydWlyZSBhaW5zaSBxdWUgbGVzIHBpZWNlcyBq b2ludGVzLiBMZXMgbWVzc2FnZXMgZWxlY3Ryb25pcXVlcyBldGFudCBzdXNjZXB0aWJsZXMgZCdh bHRlcmF0aW9uLApPcmFuZ2UgZGVjbGluZSB0b3V0ZSByZXNwb25zYWJpbGl0ZSBzaSBjZSBtZXNz YWdlIGEgZXRlIGFsdGVyZSwgZGVmb3JtZSBvdSBmYWxzaWZpZS4gTWVyY2kuCgpUaGlzIG1lc3Nh Z2UgYW5kIGl0cyBhdHRhY2htZW50cyBtYXkgY29udGFpbiBjb25maWRlbnRpYWwgb3IgcHJpdmls ZWdlZCBpbmZvcm1hdGlvbiB0aGF0IG1heSBiZSBwcm90ZWN0ZWQgYnkgbGF3Owp0aGV5IHNob3Vs ZCBub3QgYmUgZGlzdHJpYnV0ZWQsIHVzZWQgb3IgY29waWVkIHdpdGhvdXQgYXV0aG9yaXNhdGlv bi4KSWYgeW91IGhhdmUgcmVjZWl2ZWQgdGhpcyBlbWFpbCBpbiBlcnJvciwgcGxlYXNlIG5vdGlm eSB0aGUgc2VuZGVyIGFuZCBkZWxldGUgdGhpcyBtZXNzYWdlIGFuZCBpdHMgYXR0YWNobWVudHMu CkFzIGVtYWlscyBtYXkgYmUgYWx0ZXJlZCwgT3JhbmdlIGlzIG5vdCBsaWFibGUgZm9yIG1lc3Nh Z2VzIHRoYXQgaGF2ZSBiZWVuIG1vZGlmaWVkLCBjaGFuZ2VkIG9yIGZhbHNpZmllZC4KVGhhbmsg eW91LgoK From nobody Fri Apr 30 06:19:21 2021 Return-Path: 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 3AE873A17AC; Fri, 30 Apr 2021 06:19:12 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.399 X-Spam-Level: X-Spam-Status: No, score=-4.399 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_MED=-2.3, 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=csperkins.org 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 VAJ0SnMWXpmf; Fri, 30 Apr 2021 06:19:07 -0700 (PDT) Received: from haggis.mythic-beasts.com (haggis.mythic-beasts.com [IPv6:2a00:1098:0:86:1000:0:2:1]) (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 0846A3A17AB; Fri, 30 Apr 2021 06:19:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=csperkins.org; s=mythic-beasts-k1; h=To:Date:Subject:From; bh=+L+a79t5JGZ8AJE79jK+QY2mQa5n7adam1wiHZITNwg=; b=fvMhPS8ERjB9jXtMcP22qIeJLv 0MLzT0jFzyTcr9oyqqhJPJ3e8/pZYmc5D2xJ19oGb/biP39PHNO/IkZ4pZSrSOblEgJCIrMXnSx2W pvr1mBy6uz1/KlawJPoQH641hyAlOywliTTdEZ/kHma/3KGREHQN6IgM0pMmifAhJQ75/26IkoAc0 YFM4cnxiJIbLLWHij83PNzjltb464nnwXdZC15++l2QP5oSXYDTe7fqB8Kz3//E3Fa57w8XNuIJO+ dsvXgaDD1c4wqTocHMYJBI+0DDl3SzBoT+RH8HG9V1UJiDEdsI/bGeqS7Aq+k98ZLlB/VEeNwTWwp NsaEuS9w==; Received: from [81.187.2.149] (port=35708 helo=[192.168.0.69]) by haggis.mythic-beasts.com with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92.3) (envelope-from ) id 1lcT2u-0000bx-2U; Fri, 30 Apr 2021 14:19:04 +0100 From: Colin Perkins Message-Id: <55772F99-57FE-42DE-B300-B9EE31626997@csperkins.org> Content-Type: multipart/alternative; boundary="Apple-Mail=_99A4DF44-8DF0-48B3-AAA0-84F1333178C5" Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.20\)) Date: Fri, 30 Apr 2021 14:18:58 +0100 In-Reply-To: <32339_1619788383_608C025E_32339_340_7_787AE7BB302AE849A7480A190F8B93303537522B@OPEXCAUBMA2.corporate.adroot.infra.ftgroup> Cc: "tsv-art@ietf.org" , "core@ietf.org" , "draft-ietf-core-new-block.all@ietf.org" , "last-call@ietf.org" To: mohamed.boucadair@orange.com References: <161964687448.26837.8092317722890333336@ietfa.amsl.com> <32001_1619679152_608A57B0_32001_95_1_787AE7BB302AE849A7480A190F8B93303537462E@OPEXCAUBMA2.corporate.adroot.infra.ftgroup> <53FBD74C-D8CF-41B9-A67D-836760FE111B@csperkins.org> <32339_1619788383_608C025E_32339_340_7_787AE7BB302AE849A7480A190F8B93303537522B@OPEXCAUBMA2.corporate.adroot.infra.ftgroup> X-Mailer: Apple Mail (2.3445.104.20) X-BlackCat-Spam-Score: 14 Archived-At: Subject: Re: [core] Tsvart last call review of draft-ietf-core-new-block-11 X-BeenThere: core@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 30 Apr 2021 13:19:12 -0000 --Apple-Mail=_99A4DF44-8DF0-48B3-AAA0-84F1333178C5 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 That=E2=80=99s all fine =E2=80=93 thank you! Colin > On 30 Apr 2021, at 14:13, = wrote: >=20 > Hi Colin,=20 >=20 > Please see inline. (removed items that are addressed) >=20 > Cheers, > Med >=20 > PS: The changes can be tracked here: = https://tinyurl.com/new-block-latest = =20 >=20 >> -----Message d'origine----- >> De : Colin Perkins [mailto:csp@csperkins.org = ] >> Envoy=C3=A9 : vendredi 30 avril 2021 13:02 >> =C3=80 : BOUCADAIR Mohamed TGI/OLN > >> Cc : tsv-art@ietf.org ; core@ietf.org = ; draft-ietf-core-new- >> block.all@ietf.org ; last-call@ietf.org = >> Objet : Re: Tsvart last call review of draft-ietf-core-new-block-11 >>=20 >> Hi, >>=20 >> [inline] >>=20 >> On 29 Apr 2021, at 7:52, mohamed.boucadair@orange.com wrote: >>> Hi Colin, >>>=20 >>> Thank you for the review. >>>=20 >>> Please see inline. >>>=20 >>> Cheers, >>> Med >>>=20 >>>> -----Message d'origine----- >>>> De : Colin Perkins via Datatracker [mailto:noreply@ietf.org] >> Envoy=C3=A9 : >>>> mercredi 28 avril 2021 23:55 =C3=80 : tsv-art@ietf.org Cc : >> core@ietf.org; >>>> draft-ietf-core-new-block.all@ietf.org; last- call@ietf.org >> Objet : >>>> Tsvart last call review of draft-ietf-core-new-block-11 >>>>=20 >>>> Reviewer: Colin Perkins >>>> Review result: Ready with Issues >>>>=20 >>=20 >>>>=20 >>>> In Section 7.2, I=E2=80=99m not convinced by the argument to set >> MAX_PAYLOAD >>>> to 10 for similar reasons to RFC 6928. The types of link layer >> that >>>> CoAP runs over are very different to those measured to support the >>>> increase in TCP=E2=80=99s initial window. An argument based on = typical >>>> properties of links and buffer space in networks used by CoAP >> would >>>> be more convincing (I accept that using MAX_PAYLOAD of 10 is not >>>> going to do any significant harm, even if it is higher than >> optimal). >>>=20 >>> [Med] Actually we set it to 10 as the applicability scope of this >> spec >>> is DOTS which runs in environments similar to those of 6928. Please >>> see Section 3.2. >>=20 >> This would be a lot clearer if Section 3.2 were cross-referenced, and >> a reminder of the limited applicability of this specification was >> added to Section 7.2. >>=20 >=20 > [Med] Made this change:=20 >=20 > OLD: > Note: The default value of 10 is chosen for reasons similar to > those discussed in Section 5 of [RFC6928]. >=20 > NEW: > Note: The default value of 10 is chosen for reasons similar to > those discussed in Section 5 of [RFC6928], especially given the > target application discussed in Section 3.2. >=20 >>>> Section 7.2 also notes that =E2=80=9CPROBING_RATE and other = transmission >>>> parameters are negotiated between peers=E2=80=9D. It would be = appropriate >> to >>>> give some guidance on what are the bounds for safe values that can >> be >>>> negotiated for these parameters. >>>=20 >>> [Med] I'm afraid this is out of the scope of this spec. The intent >> of >>> this note is to provide an example of an application that >> negotiates >>> these parameters. Some of these details can be found in in >>> rfc8782#section-4.5.2 mentioned in the text you quoted. >>=20 >> Makes sense, although I wonder if the text in Section 7.2 might be >> more clearly written =E2=80=9CThe DOTS application uses customised = defaults >> for PROBING_RATE and other transmission parameters, as discussed in >> Section >> 4.5.2 of [RFC8782], that are negotiated between peers=E2=80=9D? >>=20 >=20 > [Med] Thank you, but I prefer the old wording. =20 >=20 >>=20 >>>> and I would suggest that even if there are such issues, backoff >> would >>>> be appropriate given persistent congestion. >>>>=20 >>>> Finally, is there are mechanism for gradually recovering >> MAX_PAYLOADS >>>> to its original value, if persistent loss ceases for some period? >>>>=20 >>>=20 >>> [Med] This is covered by the configuration refresh/negotiation >>> mechanism. The peers will refresh the configuration parameters >>> following, for example, I-D.bosh-dots-quick-blocks. >>=20 >> Might be worth stating that in the draft? >>=20 >=20 > [Med] After thinking about this further, we added this NEW text: >=20 > NEW: > Following a period of 24 hours where no packet > recovery was required, the value of MAX_PAYLOADS can be increased by > 1 (but without exceeding the default value) for a further 24 hour > evaluation. >=20 > = __________________________________________________________________________= _______________________________________________ >=20 > Ce message et ses pieces jointes peuvent contenir des informations = confidentielles ou privilegiees et ne doivent donc > pas etre diffuses, exploites ou copies sans autorisation. Si vous avez = recu ce message par erreur, veuillez le signaler > a l'expediteur et le detruire ainsi que les pieces jointes. Les = messages electroniques etant susceptibles d'alteration, > Orange decline toute responsabilite si ce message a ete altere, = deforme ou falsifie. Merci. >=20 > This message and its attachments may contain confidential or = privileged information that may be protected by law; > they should not be distributed, used or copied without authorisation. > If you have received this email in error, please notify the sender and = delete this message and its attachments. > As emails may be altered, Orange is not liable for messages that have = been modified, changed or falsified. > Thank you. --=20 Colin Perkins https://csperkins.org/ --Apple-Mail=_99A4DF44-8DF0-48B3-AAA0-84F1333178C5 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8 That=E2=80=99s all fine =E2=80=93 thank you!
Colin



On 30 Apr 2021, at 14:13, <mohamed.boucadair@orange.com> <mohamed.boucadair@orange.com> wrote:

Hi Colin, 

Please see inline. (removed = items that are addressed)

Cheers,
Med

PS: The changes can be tracked here: https://tinyurl.com/new-block-latest 

-----Message d'origine-----
De : Colin = Perkins [mailto:csp@csperkins.org]
Envoy=C3=A9 : = vendredi 30 avril 2021 13:02
=C3=80 : BOUCADAIR = Mohamed TGI/OLN <mohamed.boucadair@orange.com>
Cc : tsv-art@ietf.org; core@ietf.org; = draft-ietf-core-new-
block.all@ietf.org; last-call@ietf.org
Objet : Re: Tsvart last call review of = draft-ietf-core-new-block-11

Hi,

[inline]

On 29 = Apr 2021, at 7:52, mohamed.boucadair@orange.com wrote:
Hi Colin,

Thank you for the review.

Please see inline.

Cheers,
Med

-----Message d'origine-----
De : Colin = Perkins via Datatracker [mailto:noreply@ietf.org]
Envoy=C3=A9 :
mercredi 28 avril 2021 23:55 =C3=80 : tsv-art@ietf.org = Cc :
core@ietf.org;
draft-ietf-core-new-block.all@ietf.org; last- call@ietf.org
Objet :
Tsvart last call review of draft-ietf-core-new-block-11

Reviewer: Colin Perkins
Review = result: Ready with Issues



In Section 7.2, I=E2=80=99m not convinced by the argument to = set
MAX_PAYLOAD
to 10 for similar reasons to RFC 6928. The types of link = layer
that
CoAP runs over are very different to those measured to = support the
increase in TCP=E2=80=99s initial window. An = argument based on typical
properties of links and buffer = space in networks used by CoAP
would
be more = convincing (I accept that using MAX_PAYLOAD of 10 is not
going to do any significant harm, even if it is higher = than
optimal).

[Med] = Actually we set it to 10 as the applicability scope of this
spec
is DOTS which runs in environments similar to those of 6928. = Please
see Section 3.2.

This would be a lot clearer if Section 3.2 were = cross-referenced, and
a reminder of the limited = applicability of this specification was
added to Section = 7.2.


[Med] Made this change: 

OLD:
     Note: The default value of 10 = is chosen for reasons similar to
     those discussed in Section 5 of = [RFC6928].

NEW:
     Note: The default value of 10 = is chosen for reasons similar to
     those discussed in Section 5 of = [RFC6928], especially given the
     target application discussed in = Section 3.2.

Section 7.2 also notes that =E2=80=9CPROBING_RATE and other = transmission
parameters are negotiated between peers=E2=80=9D= . It would be appropriate
to
give some guidance on what are the bounds for safe values = that can
be
negotiated for these parameters.
[Med] I'm afraid this is out of the scope of this spec. The = intent
of
this note is to provide an example of an = application that
negotiates
these parameters. Some = of these details can be found in in
rfc8782#section-4.5.2 = mentioned in the text you quoted.

Makes sense, although I wonder if the text in Section 7.2 = might be
more clearly written =E2=80=9CThe DOTS = application uses customised defaults
for PROBING_RATE and = other transmission parameters, as discussed in
Section
4.5.2 of [RFC8782], that are negotiated between peers=E2=80=9D?=


[Med] Thank you, but I prefer the old wording. =  


and I would suggest that even if there are such issues, = backoff
would
be appropriate given persistent congestion.

Finally, is there are mechanism for gradually recovering
MAX_PAYLOADS
to its original value, if persistent loss ceases for some = period?


[Med] = This is covered by the configuration refresh/negotiation
mechanism. The peers will refresh the configuration = parameters
following, for example, = I-D.bosh-dots-quick-blocks.

Might be worth stating that in the draft?


[Med] After thinking about this further, we added this NEW = text:

NEW:
  Following a period = of 24 hours where no packet
  recovery was required, the value of MAX_PAYLOADS = can be increased by
  1 (but without exceeding the default value) for a = further 24 hour
  evaluation.

_______________________________________________________________= __________________________________________________________

Ce message et ses pieces jointes = peuvent contenir des informations confidentielles ou privilegiees et ne = doivent donc
pas etre = diffuses, exploites ou copies sans autorisation. Si vous avez recu ce = message par erreur, veuillez le signaler
a l'expediteur et le detruire ainsi que les pieces jointes. = Les messages electroniques etant susceptibles d'alteration,
Orange decline toute = responsabilite si ce message a ete altere, deforme ou falsifie. = Merci.

This message = and its attachments may contain confidential or privileged information = that may be protected by law;
they should not be distributed, used or copied without = authorisation.
If you have received this email in error, please notify the = sender and delete this message and its attachments.
As emails may be altered, Orange = is not liable for messages that have been modified, changed or = falsified.
Thank = you.



-- 
Colin Perkins
https://csperkins.org/




= --Apple-Mail=_99A4DF44-8DF0-48B3-AAA0-84F1333178C5--