From nobody Thu Aug 5 09:49:39 2021 Return-Path: X-Original-To: int-dir@ietf.org Delivered-To: int-dir@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id C0BFA3A1912; Thu, 5 Aug 2021 09:49:37 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Bob Halley via Datatracker To: Cc: draft-ietf-6man-ipv6-alt-mark.all@ietf.org, ipv6@ietf.org, last-call@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 7.35.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <162818217774.16697.1678962349704740887@ietfa.amsl.com> Reply-To: Bob Halley Date: Thu, 05 Aug 2021 09:49:37 -0700 Archived-At: Subject: [Int-dir] Intdir telechat review of draft-ietf-6man-ipv6-alt-mark-08 X-BeenThere: int-dir@ietf.org X-Mailman-Version: 2.1.29 List-Id: "This list is for discussion between the members of the Internet Area directorate." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Aug 2021 16:49:38 -0000 Reviewer: Bob Halley Review result: Ready I am an assigned INT directorate reviewer for draft-ietf-dnssd-prireq. These comments were written primarily for the benefit of the Internet Area Directors. Document editors and shepherd(s) should treat these comments just like they would treat comments from any other IETF contributors and resolve them along with any other Last Call comments that have been received. For more details on the INT Directorate, see http://www.ietf.org/iesg/directorate.html. I think this draft is ready. It's clear, and explains the motivation behind ideas well. I do not have any technical concerns about it. 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Thu, 5 Aug 2021 21:47:01 +0000 From: "Eric Vyncke (evyncke)" To: Bob Halley , "int-dir@ietf.org" CC: "draft-ietf-6man-ipv6-alt-mark.all@ietf.org" , "ipv6@ietf.org" , "last-call@ietf.org" Thread-Topic: Intdir telechat review of draft-ietf-6man-ipv6-alt-mark-08 Thread-Index: AQHXihnolJRjm/kCU0KPiscBOkWpYKtllCuA Date: Thu, 5 Aug 2021 21:47:01 +0000 Message-ID: <7A9FCF80-F4EE-42BF-8B60-1C6AEF28218B@cisco.com> References: <162818217774.16697.1678962349704740887@ietfa.amsl.com> In-Reply-To: <162818217774.16697.1678962349704740887@ietfa.amsl.com> Accept-Language: fr-BE, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/16.51.21071101 authentication-results: gmail.com; dkim=none (message not signed) header.d=none;gmail.com; dmarc=none action=none header.from=cisco.com; x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: d387368b-18b0-485e-7c30-08d9585a8ed8 x-ms-traffictypediagnostic: PH0PR11MB5061: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:7691; 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List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 06 Aug 2021 15:07:50 -0000 RGVhciBCb2IsDQpUaGFuayB5b3UgZm9yIHlvdXIgb3BpbmlvbiBvZiB0aGUgZHJhZnQuDQoNClJl Z2FyZHMsDQoNCkdpdXNlcHBlDQoNCi0tLS0tT3JpZ2luYWwgTWVzc2FnZS0tLS0tDQpGcm9tOiBC b2IgSGFsbGV5IHZpYSBEYXRhdHJhY2tlciA8bm9yZXBseUBpZXRmLm9yZz4gDQpTZW50OiBUaHVy c2RheSwgQXVndXN0IDUsIDIwMjEgNjo1MCBQTQ0KVG86IGludC1kaXJAaWV0Zi5vcmcNCkNjOiBk cmFmdC1pZXRmLTZtYW4taXB2Ni1hbHQtbWFyay5hbGxAaWV0Zi5vcmc7IGlwdjZAaWV0Zi5vcmc7 IGxhc3QtY2FsbEBpZXRmLm9yZw0KU3ViamVjdDogSW50ZGlyIHRlbGVjaGF0IHJldmlldyBvZiBk cmFmdC1pZXRmLTZtYW4taXB2Ni1hbHQtbWFyay0wOA0KDQpSZXZpZXdlcjogQm9iIEhhbGxleQ0K UmV2aWV3IHJlc3VsdDogUmVhZHkNCg0KIEkgYW0gYW4gYXNzaWduZWQgSU5UIGRpcmVjdG9yYXRl IHJldmlld2VyIGZvciBkcmFmdC1pZXRmLWRuc3NkLXByaXJlcS4gIFRoZXNlICBjb21tZW50cyB3 ZXJlIHdyaXR0ZW4gcHJpbWFyaWx5IGZvciB0aGUgYmVuZWZpdCBvZiB0aGUgSW50ZXJuZXQgQXJl YQ0KIERpcmVjdG9ycy4gICBEb2N1bWVudCBlZGl0b3JzIGFuZCBzaGVwaGVyZChzKSBzaG91bGQg dHJlYXQgdGhlc2UgY29tbWVudHMganVzdA0KIGxpa2UgdGhleSB3b3VsZCB0cmVhdCBjb21tZW50 cyBmcm9tIGFueSBvdGhlciBJRVRGIGNvbnRyaWJ1dG9ycyBhbmQgcmVzb2x2ZSAgdGhlbSBhbG9u ZyB3aXRoIGFueSBvdGhlciBMYXN0IENhbGwgY29tbWVudHMgdGhhdCBoYXZlIGJlZW4gcmVjZWl2 ZWQuIEZvciBtb3JlICBkZXRhaWxzIG9uIHRoZSBJTlQgRGlyZWN0b3JhdGUsIHNlZSBodHRwOi8v d3d3LmlldGYub3JnL2llc2cvZGlyZWN0b3JhdGUuaHRtbC4NCg0KSSB0aGluayB0aGlzIGRyYWZ0 IGlzIHJlYWR5LiAgSXQncyBjbGVhciwgYW5kIGV4cGxhaW5zIHRoZSBtb3RpdmF0aW9uIGJlaGlu ZCBpZGVhcyB3ZWxsLiAgSSBkbyBub3QgaGF2ZSBhbnkgdGVjaG5pY2FsIGNvbmNlcm5zIGFib3V0 IGl0Lg0KDQoNCg== From nobody Fri Aug 6 19:03:17 2021 Return-Path: X-Original-To: int-dir@ietf.org Delivered-To: int-dir@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 088573A2455; Fri, 6 Aug 2021 19:03:13 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Dave Thaler via Datatracker To: Cc: 6lo@ietf.org, draft-ietf-6lo-plc.all@ietf.org, last-call@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 7.36.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <162830179295.7667.13372087276503711656@ietfa.amsl.com> Reply-To: Dave Thaler Date: Fri, 06 Aug 2021 19:03:13 -0700 Archived-At: Subject: [Int-dir] Intdir telechat review of draft-ietf-6lo-plc-06 X-BeenThere: int-dir@ietf.org X-Mailman-Version: 2.1.29 List-Id: "This list is for discussion between the members of the Internet Area directorate." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 07 Aug 2021 02:03:13 -0000 Reviewer: Dave Thaler Review result: Almost Ready I am an assigned INT directorate reviewer for draft-ietf-6lo-plc-06.txt. These comments were written primarily for the benefit of the Internet Area Directors. Document editors and shepherd(s) should treat these comments just like they would treat comments from any other IETF contributors and resolve them along with any other Last Call comments that have been received. For more details on the INT Directorate, see https://datatracker.ietf.org/group/intdir/about/ . Overall I found the document to be fairly well written and understandable. There were a couple of areas though where I think additional elaboration is needed. Technical comments: 1) Page 8 talks about "the" IPv6 address used for communication with the public network, implying there can only be one at a time. This is not normal in IPv6, where you can have a public address, the current temporary address, and the previous temporary address (to allow for transition to a new one), all at the same time. Should this be changed to be plural? If not, how do you support privacy addresses in IPv6? What about cases where you have external connectivity to two public networks each with its own prefix? I don't see this answered anywhere in the doc. 2) Page 8 also mentions that a shared secret "or" version number can be used in a hash to derive an IID, but never defines any hash details. To me, that implies that this document currently does not provide any guarantee of interoperability, in which case why do you need an IETF RFC at all if every device has to come from the same vendor with an algorithm not specified in the standard? I expected this document to specify the details of a hash algorithm that must be implemented. 3) RFC 8065 explains that privacy of IPv6 link-local addresses is typically uninteresting because on broadcast media all devices can see all the link-layer addresses and mappings anyway. At least in the star and tree topologies, I suspect this is not the case. However the document doesn't seem to contain any discussion of the privacy considerations in such a case. 4) RFC 8065 section 4 provides a checklist of what adaptation layer documents like this need to address. I'd recommend addressing each point separately in the Security Considerations section, so it's clear that the draft addresses the whole checklist. For example, there's nothing in the document that mentions what the typical link lifetime is (years maybe?) As another example, it's really hard to tell from reading the last paragraph of section 4.5 of this draft how it addresses RFC 8065's statement that "any specification using Short Addresses should carefully construct an IID generation mechanism so as to provide sufficient entropy compared to the link lifetime" so elaboration here is warranted here in my opinion. I also have some editorial nits that can be found in a marked up copy at https://www.microsoft.com/en-us/research/uploads/prod/2021/08/draft-ietf-6lo-plc-06.pdf Dave From nobody Mon Aug 9 22:48:33 2021 Return-Path: X-Original-To: int-dir@ietfa.amsl.com Delivered-To: int-dir@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 3A0DD3A285A; Mon, 9 Aug 2021 22:48:31 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -9.599 X-Spam-Level: X-Spam-Status: No, score=-9.599 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_H2=-0.001, SPF_NONE=0.001, URIBL_BLOCKED=0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com header.b=f2UH3JCT; dkim=pass (1024-bit key) header.d=cisco.onmicrosoft.com header.b=aLB+9SWP 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 axuk7B4AoM2b; 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Tue, 10 Aug 2021 05:48:17 +0000 From: "Eric Vyncke (evyncke)" To: Dave Thaler , "int-dir@ietf.org" CC: "6lo@ietf.org" <6lo@ietf.org>, "draft-ietf-6lo-plc.all@ietf.org" , "last-call@ietf.org" Thread-Topic: Intdir telechat review of draft-ietf-6lo-plc-06 Thread-Index: AQHXizBqB30/aMVxoUenA9uNwrv3RKtsYciA Date: Tue, 10 Aug 2021 05:48:17 +0000 Message-ID: <2251144E-10DB-4488-A728-D98777F8639A@cisco.com> References: <162830179295.7667.13372087276503711656@ietfa.amsl.com> In-Reply-To: <162830179295.7667.13372087276503711656@ietfa.amsl.com> Accept-Language: fr-BE, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/16.51.21071101 authentication-results: microsoft.com; dkim=none (message not signed) header.d=none;microsoft.com; dmarc=none action=none header.from=cisco.com; x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: f678c0fb-c160-4ae3-29c7-08d95bc2741f x-ms-traffictypediagnostic: PH0PR11MB5064: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:10000; 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X-Original-To: int-dir@ietf.org Delivered-To: int-dir@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 52EBE3A0B84; Fri, 20 Aug 2021 13:12:04 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: Jean-Michel Combes via Datatracker To: Cc: dnsop@ietf.org, draft-ietf-dnsop-rfc7816bis.all@ietf.org, last-call@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 7.36.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <162949032426.20576.2607114366091311647@ietfa.amsl.com> Reply-To: Jean-Michel Combes Date: Fri, 20 Aug 2021 13:12:04 -0700 Archived-At: Subject: [Int-dir] Intdir telechat review of draft-ietf-dnsop-rfc7816bis-10 X-BeenThere: int-dir@ietf.org X-Mailman-Version: 2.1.29 List-Id: "This list is for discussion between the members of the Internet Area directorate." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 20 Aug 2021 20:12:05 -0000 Reviewer: Jean-Michel Combes Review result: Ready with Nits Hi, Please find my review, as member of the INT Area Directorate, of the following document: DNS Query Name Minimisation to Improve Privacy draft-ietf-dnsop-rfc7816bis-10 1. Introduction and Background The problem statement for this document is described in [RFC7626]. s/[RFC7626]/[RFC9076] 1.1. Experience From RFC 7816 This document obsoletes [RFC7816]. RFC 7816 was labelled "experimental", but ideas from it were widely deployed since its publication. Many resolver implementations now support QNAME minimisation. The lessons learned from implementing QNAME minimisation were used to create this new revision. Maybe, another argument to move to “Standards Track”: For the moment, Root Server Operators do not feel comfortable with authoritative DNS encryption. They encourage the increased deployment of QNAME minimisation [REF_informative]. [REF_informative] https://root-servers.org/media/news/Statement_on_DNS_Encryption.pdf 5. Performance Considerations QNAME minimisation can increase the number of queries based on the incoming QNAME. This is described in Section 2.3. As described in [devries-qnamemin], QNAME minimisation in strict mode both increases the number of DNS lookups by up to 26% and leads to up to 5% more failed lookups. The full cache in a production resolver will soften that overhead. I didn’t find any definition/explanation about “strict mode” of QNAME minimization inside this document. There is no definition/explanation about strict (and relaxed) mode(s) inside [devries-qnamemin] too. So, I don’t understand how is useful this paragraph for the document. May you clarify this point, please? 6. Security Considerations QNAME minimisation's benefits are clear in the case where you want to decrease exposure to the authoritative name server. But minimising the amount of data sent also, in part, addresses the case of a wire sniffer as well as the case of privacy invasion by the servers. (Encryption is of course a better defense against wire sniffers, but, unlike QNAME minimisation, it changes the protocol and cannot be deployed unilaterally. Also, the effect of QNAME minimisation on wire sniffers depends on whether the sniffer is on the DNS path.) Maybe, my comment about Root Servers Operators (cf. Section 1.1) may be used to illustrate the difficulty to deploy encryption everywhere. Thanks in advance for your replies. Best regards, JMC. From nobody Tue Aug 24 14:04:10 2021 Return-Path: X-Original-To: int-dir@ietf.org Delivered-To: int-dir@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 3B1033A1315; Tue, 24 Aug 2021 14:04:04 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Benno Overeinder via Datatracker To: Cc: draft-ietf-httpbis-proxy-status.all@ietf.org, ietf-http-wg@w3.org, last-call@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 7.36.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <162983904413.3432.11046960848070353955@ietfa.amsl.com> Reply-To: Benno Overeinder Date: Tue, 24 Aug 2021 14:04:04 -0700 Archived-At: Subject: [Int-dir] Intdir telechat review of draft-ietf-httpbis-proxy-status-06 X-BeenThere: int-dir@ietf.org X-Mailman-Version: 2.1.29 List-Id: "This list is for discussion between the members of the Internet Area directorate." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 24 Aug 2021 21:04:05 -0000 Reviewer: Benno Overeinder Review result: Ready with Nits Intdir Review draft-ietf-httpbis-proxy-status-06 I am an assigned INT directorate reviewer for draft-ietf-httpbis-proxy-status-06. These comments were written primarily for the benefit of the Internet Area Directors. Document editors and shepherd(s) should treat these comments just like they would treat comments from any other IETF contributors and resolve them along with any other Last Call comments that have been received. For more details on the INT Directorate, see https://datatracker.ietf.org/group/intdir/about/. Overall I find the document to be well written and understandable. I think the draft is ready with nits for publication. Section Abstract could provide a little more explanation, such as one or two examples of how to use the error reporting (as explained in the Introduction). At the beginning of Section 2, should it be stated that Proxy-Status HTTP Fields are only added to responses towards the user agent? So explicitly state that an intermediary only adds Proxy-Status HTTP Field towards the user agent and not towards the origin server? (It is implied by the use of the word "response" of course and other text in this section.) In Section 2.1, the following paragraph is a bit confusing to me: Unless a Proxy Error Type specifies otherwise, the presences of error often, but not always, indicates that response was generated by the proxy, not the origin server or any other upstream server. For example, a proxy might attempt to correct an error, or part of a response might be forwarded before the error is encountered. I read the sentence "For example, a proxy might ..." as the situation where the next intermediary will generate the error message. Is that correct? 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List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 25 Aug 2021 01:26:09 -0000 Hi Benno, Thanks for the review. > On 25 Aug 2021, at 7:04 am, Benno Overeinder via Datatracker = wrote: >=20 > Section Abstract could provide a little more explanation, such as one > or two examples of how to use the error reporting (as explained in the > Introduction). I don't think adding examples to the abstract is helpful. > At the beginning of Section 2, should it be stated that Proxy-Status > HTTP Fields are only added to responses towards the user agent? So > explicitly state that an intermediary only adds Proxy-Status HTTP > Field towards the user agent and not towards the origin server? (It > is implied by the use of the word "response" of course and other text > in this section.) Proxy-Status is explicitly defined as a response field; this is how we = denote that in HTTP. > In Section 2.1, the following paragraph is a bit confusing to me: >=20 > Unless a Proxy Error Type specifies otherwise, the presences of = error > often, but not always, indicates that response was generated by the > proxy, not the origin server or any other upstream server. For > example, a proxy might attempt to correct an error, or part of a > response might be forwarded before the error is encountered. >=20 > I read the sentence "For example, a proxy might ..." as the situation > where the next intermediary will generate the error message. Is that > correct? Yes, that's not terribly clear. See: https://github.com/httpwg/http-extensions/commit/315bcc7f Cheers, -- Mark Nottingham https://www.mnot.net/ From nobody Tue Aug 24 23:22:41 2021 Return-Path: X-Original-To: int-dir@ietfa.amsl.com Delivered-To: int-dir@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 9D53B3A0768; Tue, 24 Aug 2021 23:22:38 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -9.596 X-Spam-Level: X-Spam-Status: No, score=-9.596 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=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_NONE=0.001, URIBL_BLOCKED=0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com header.b=btVv7L+d; dkim=pass (1024-bit key) header.d=cisco.onmicrosoft.com header.b=J+/eIgOx 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 gjc0oLvjicTf; 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Wed, 25 Aug 2021 06:22:22 +0000 From: "Eric Vyncke (evyncke)" To: Jean-Michel Combes , "int-dir@ietf.org" CC: "draft-ietf-dnsop-rfc7816bis.all@ietf.org" Thread-Topic: [Int-dir] Intdir telechat review of draft-ietf-dnsop-rfc7816bis-10 Thread-Index: AQHXlf+zU4GXBQ+d50mhshjPYUdqSauD6KgA Date: Wed, 25 Aug 2021 06:22:22 +0000 Message-ID: References: <162949032426.20576.2607114366091311647@ietfa.amsl.com> In-Reply-To: <162949032426.20576.2607114366091311647@ietfa.amsl.com> Accept-Language: fr-BE, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/16.52.21080801 authentication-results: gmail.com; dkim=none (message not signed) header.d=none;gmail.com; dmarc=none action=none header.from=cisco.com; x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 7ff11486-a474-4e7a-2cad-08d96790b319 x-ms-traffictypediagnostic: PH0PR11MB4807: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:6430; x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0; 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-0700 Archived-At: Subject: [Int-dir] Intdir last call review of draft-ietf-opsawg-vpn-common-09 X-BeenThere: int-dir@ietf.org X-Mailman-Version: 2.1.29 List-Id: "This list is for discussion between the members of the Internet Area directorate." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 31 Aug 2021 04:06:28 -0000 Reviewer: Suresh Krishnan Review result: Ready I have reviewed this draft and it is well written and easy to read. It is ready for publication as a Proposed Standard. 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