From nobody Mon Oct 12 07:54:04 2020 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 AF36B3A1535; Mon, 12 Oct 2020 07:53:58 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Zhen Cao via Datatracker To: Cc: draft-ietf-dots-server-discovery.all@ietf.org, last-call@ietf.org, dots@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 7.19.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <160251443866.28127.2696320816235439108@ietfa.amsl.com> Reply-To: Zhen Cao Date: Mon, 12 Oct 2020 07:53:58 -0700 Archived-At: Subject: [Int-dir] Intdir last call partial review of draft-ietf-dots-server-discovery-11 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: Mon, 12 Oct 2020 14:53:59 -0000 Review is partially done. Another assignment may be needed to complete it. Reviewer: Zhen Cao Review result: Ready with Nits Reviewer: Zhen Cao Review result: Ready with Nits Thanks the authors for the document. DOTS server discovery is important to the functioning of the whole system. Important: I read Bernie's eary quick review (saying not a full one) for the 01 version [*] and the comments had been addressed in 02 version. And I think our AD @Eric needs to check if there is a need for further DHC doctor review. (although I checked there were not much changed on the DHCP parts from r02 to r11) . [*]https://github.com/boucadair/draft-ietf-dots-discovery/issues/1 I think most of the other parts looks quite ready except: a) Section 5.1.2 on the configuration of the ipv4-mapped IPv6 address. old: Note, IPv4-mapped IPv6 addresses (Section 2.5.5.2 of [RFC4291]) are allowed to be included in this option. I do not know why this is particularly mentioned here given there are many types of IPv6 address. I think it 's better to remove this statement since there are many issues configuring IPv4-mapped address directly. Some systems will disable (by default) support for internal IPv4-mapped IPv6 addresses. Some implementations of dual-stack do not allow IPv4-mapped IPv6 addresses to be used for interoperability between IPv4 and IPv6 applications. [RFC4038]. Such discussions do not have to be present here. b) the first sentence of the abstract: s/Districuted/Distributed. 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List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 Oct 2020 02:58:35 -0000 Reviewer: Sheng Jiang Review result: Ready with Issues Reviewer: Sheng Jiang Review result: Ready with Issues Hi, I have reviewed this document as part of the Internet Area directorate's ongoing effort to review all IETF documents being processed by the IESG. These comments were written with the intent of improving the IETF drafts. Comments that are not addressed in last call may be included in AD reviews during the IESG review. Document editors and WG chairs should treat these comments just like any other last call comments. draft-ietf-v6ops-cpe-slaac-renum-05 Overall Summary: This draft is a document that intents to be an Informational RFC. This document gives some recommendation to improve the reaction and performance of Customer Edge Routers in the IPv6 renumbering events. It updates RFC7084. Overall this is a well written document. There is a small Nit: in the information reference, [I-D.gont-6man-slaac-renum] has been listed twice. However, I have a more fundamental question. It may be easily addressed by AD saying it was not an issue: as an informational document, it should only give information or recommendation to the readers or implementors. However, this document has a lot of "MUST", which is too strong and I think it should only appear in Standard Stack or BCP documents. If so, this document may need revise, even rework in the WG. Regards, Sheng From nobody Mon Oct 19 20:22:02 2020 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 3C4523A1093; Mon, 19 Oct 2020 20:22:01 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Sheng Jiang via Datatracker To: Cc: last-call@ietf.org, v6ops@ietf.org, draft-ietf-v6ops-slaac-renum.all@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 7.20.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <160316412121.27287.5712211736911612350@ietfa.amsl.com> Reply-To: Sheng Jiang Date: Mon, 19 Oct 2020 20:22:01 -0700 Archived-At: Subject: [Int-dir] Intdir telechat review of draft-ietf-v6ops-slaac-renum-04 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, 20 Oct 2020 03:22:01 -0000 Reviewer: Sheng Jiang Review result: Ready Reviewer: Sheng Jiang Review result: Ready Hi, I have reviewed this document as part of the Internet Area directorate's ongoing effort to review all IETF documents being processed by the IESG. These comments were written with the intent of improving the IETF drafts. Comments that are not addressed in last call may be included in AD reviews during the IESG review. Document editors and WG chairs should treat these comments just like any other last call comments. draft-ietf-v6ops-slaac-renum-04 Overall Summary: This draft is a document that intents to be an Informational RFC. This document document the issue scenario that IPv6 prefixes becomes invalid without any explicit signaling and nodes still use stale addresses, and gives recommendations to improve the network operation. Overall this is a well written document. It is Ready for publish. 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Tue, 20 Oct 2020 18:36:41 +0000 From: "Bernie Volz (volz)" To: "int-dir@ietf.org" , "Eric Vyncke (evyncke)" CC: "draft-ietf-lwig-tcp-constrained-node-networks@ietf.org" , "last-call@ietf.org" , "lwip@ietf.org" Thread-Topic: Int Dir telechat review of draft-ietf-lwig-tcp-constrained-node-networks-11 Thread-Index: AdanDEXvpTYpa7QHSQqmacNLrYzpEQ== Date: Tue, 20 Oct 2020 18:36:41 +0000 Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: ietf.org; dkim=none (message not signed) header.d=none;ietf.org; dmarc=none action=none header.from=cisco.com; x-originating-ip: [173.38.117.78] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 4db14f5c-124d-4271-6207-08d875271682 x-ms-traffictypediagnostic: BN6PR11MB2017: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:5797; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: cYv5Kb2l8eGAkgNde6Sj4AHKWvf/55PILnL/uswOE1faLjuD69eIxNnmvm3IfRYlbKLemrW7hB/U9d9/I8oOQRuPyyfPxIVU075j43SFFlUCYttBKHLidThrmgZt+wjbC7hZ7nmf7An3b0hWfurXOa3bSx8+kckoiCPHYXsb2IwLuAHeRFUN3D5YhGZDOeIx6uiVf0+4oQORnCICFWUmV1tYF/0ITE9q4vmvPX7OipqOZ0OT66Fz4R4L9JiMpvEyDEBVQPg335Mtk1NY6gmVcTk4VcGP/v0p/+e5mMYTmof4BMMCc+fxDG+j8vKCbuHL2/dRG9iQuzrWSU+CMKJ3SoEvHx75dd1jkVaw+QO5VPiYD/7qbLUHqH6+HDV8oFfYmK2c1B7WCyNz38AQhw2n9g== x-forefront-antispam-report: CIP:255.255.255.255; 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boundary="_000_BN7SPR01MB0024B07CE9E12A1509EA39D5CF1F0BN7SPR01MB0024na_" MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: BN7SPR01MB0024.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 4db14f5c-124d-4271-6207-08d875271682 X-MS-Exchange-CrossTenant-originalarrivaltime: 20 Oct 2020 18:36:41.2964 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 5ae1af62-9505-4097-a69a-c1553ef7840e X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: kA7U0mMpgmUJS4X20SORHhUvYYAFKaRJZ3dx9NwXtaBEHV9jRmgcMmlkBv9VG8+P X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN6PR11MB2017 X-OriginatorOrg: cisco.com X-Outbound-SMTP-Client: 173.37.102.13, xch-rcd-003.cisco.com X-Outbound-Node: alln-core-8.cisco.com Archived-At: Subject: [Int-dir] Int Dir telechat review of draft-ietf-lwig-tcp-constrained-node-networks-11 X-BeenThere: int-dir@ietf.org X-Mailman-Version: 2.1.29 Precedence: list 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, 20 Oct 2020 18:36:47 -0000 --_000_BN7SPR01MB0024B07CE9E12A1509EA39D5CF1F0BN7SPR01MB0024na_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi: I am an assigned INT directorate reviewer for draft-ietf-lwig-tcp-constrain= ed-node-networks (-11). These comments were written primarily for the benef= it of the Internet Area Directors. Document editors and shepherd(s) should = treat these comments just like they would treat comments from any other IET= F contributors and resolve them along with any other Last Call comments tha= t have been received. For more details on the INT Directorate, see https://= datatracker.ietf.org/group/intdir/about/. Reviewer: Bernie Volz Review result: Ready (with minor nits) Minor nits: Section 2 should probably be updated to use the newer keyword boilerplate (= to reference RFC8174, etc.)? In Section 4.1.2 RTO is used (and also later) but this isn't defined until = section 4.2.4. Perhaps this is better defined when first used? In section 4.2.2, the following paragraph is a bit odd: One potentially relevant TCP option in the context of CNNs is TCP Fast Open (TFO) [RFC7413]. As desc= ribed in Section 5.3, TFO can be used to address the problem of traversing middleboxes that perform early filter state record deletion. Fast open isn't really used to address this issue. Section 5.3 is about "TC= P connection lifetime" and TFO is discussed there in the context of reducin= g the (initial) messages and latency. Perhaps this paragraph needs to be re= worked a bit? If the point is about TFO, then you should indicate what it i= s for (about optimizing short lived connections)? General: While RFC-editor will do, s/subsection/section is probably a good = idea as subsection isn't generally used in IETF documents when doing refere= nces. For section 8, it is too bad that some version/release information about th= e particular "code" analyzed wasn't included. It says "be aware that this A= nnex is based on information available as of the writing". But will that st= ill be valid when the RFC finally becomes available? Work started on the do= cument in Oct 2016 and I didn't go back to see when the various sections we= re added. On the other hand, perhaps these implementations don't evolve as = rapidly as general software? It does seem to be a nice survey of the availa= ble implementations. And, there are at least the following typos: characterstic codesize (perhaps code size) bandwitdh practise differrent communcation * Bernie --_000_BN7SPR01MB0024B07CE9E12A1509EA39D5CF1F0BN7SPR01MB0024na_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hi:

 

I am an assigned INT directorate reviewer for draft-= ietf-lwig-tcp-constrained-node-networks (-11). 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 contribut= ors and resolve them along with any other Last Call comments that have been= received. For more details on the INT Directorate, see https://datatr= acker.ietf.org/group/intdir/about/.

 

Reviewer: Bernie Volz

Review result: Ready (with minor nits)

 

Minor nits:

 

Section 2 should probably be updated to use the newe= r keyword boilerplate (to reference RFC8174, etc.)?

 

In Section 4.1.2 RTO is used (and also later) but th= is isn’t defined until section 4.2.4. Perhaps this is better defined = when first used?

 

In section 4.2.2, the following paragraph is a bit o= dd:

 

   One potentially relevant TCP =
option in the context of CNNs is TCP
   Fast Open (TFO) [RFC=
7413].  As described in Section 5.3,=
 TFO can be
   used to address the problem o=
f traversing middleboxes that perform
   early filter state record del=
etion.

 

Fast open isn’t really used to address this is= sue. Section 5.3 is about “TCP connection lifetime” and TFO is = discussed there in the context of reducing the (initial) messages and laten= cy. Perhaps this paragraph needs to be reworked a bit? If the point is about TFO, then you should indicate what it is for (about = optimizing short lived connections)?

 

General: While RFC-editor will do, s/subsection/sect= ion is probably a good idea as subsection isn’t generally used in IET= F documents when doing references.

 

For section 8, it is too bad that some version/relea= se information about the particular “code” analyzed wasn’= t included. It says “be aware that this Annex is based on information= available as of the writing”. But will that still be valid when the RFC finally becomes available? Work started on the document in Oc= t 2016 and I didn’t go back to see when the various sections were add= ed. On the other hand, perhaps these implementations don’t evolve as = rapidly as general software? It does seem to be a nice survey of the available implementations.

 

And, there are at least the following typos:

characterstic

codesize (perhaps code size)=

bandwitdh

practise

differrent

communcation

 

  • Bernie

 

 

 

 

--_000_BN7SPR01MB0024B07CE9E12A1509EA39D5CF1F0BN7SPR01MB0024na_-- From nobody Tue Oct 20 13:00:11 2020 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 0389F3A1350; Tue, 20 Oct 2020 13:00:05 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.146 X-Spam-Level: X-Spam-Status: No, score=-2.146 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, NICE_REPLY_A=-0.247, SPF_HELO_NONE=0.001, SPF_PASS=-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 PfW-wxbIJhQR; Tue, 20 Oct 2020 13:00:03 -0700 (PDT) Received: from fgont.go6lab.si (fgont.go6lab.si [IPv6:2001:67c:27e4::14]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id CF4D13A1351; Tue, 20 Oct 2020 13:00:00 -0700 (PDT) Received: from [IPv6:2800:810:464:b9c:69b8:4602:916c:a007] (unknown [IPv6:2800:810:464:b9c:69b8:4602:916c:a007]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by fgont.go6lab.si (Postfix) with ESMTPSA id 475EC2839E9; Tue, 20 Oct 2020 19:59:56 +0000 (UTC) To: Sheng Jiang , int-dir@ietf.org Cc: last-call@ietf.org, draft-ietf-v6ops-cpe-slaac-renum.all@ietf.org, v6ops@ietf.org References: <160316271478.8259.14048977655674076984@ietfa.amsl.com> From: Fernando Gont Message-ID: <0372f5d1-a076-2870-478a-1e8709d51553@si6networks.com> Date: Tue, 20 Oct 2020 16:43:10 -0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.1 MIME-Version: 1.0 In-Reply-To: <160316271478.8259.14048977655674076984@ietfa.amsl.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Archived-At: Subject: Re: [Int-dir] Intdir telechat review of draft-ietf-v6ops-cpe-slaac-renum-05 X-BeenThere: int-dir@ietf.org X-Mailman-Version: 2.1.29 Precedence: list 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, 20 Oct 2020 20:00:05 -0000 Hello, Sheng, Thanks so much for your comments! In-line.... On 19/10/20 23:58, Sheng Jiang via Datatracker wrote: [...] > Overall Summary: > > This draft is a document that intents to be an Informational RFC. This > document gives some recommendation to improve the reaction and performance of > Customer Edge Routers in the IPv6 renumbering events. It updates RFC7084. > > Overall this is a well written document. There is a small Nit: in the > information reference, [I-D.gont-6man-slaac-renum] has been listed twice. Note: [I-D.gont-6man-slaac-renum] is referenced to Ack the folks that reviewed that document, on which the present one is based. > However, I have a more fundamental question. It may be easily addressed by AD > saying it was not an issue: as an informational document, it should only give > information or recommendation to the readers or implementors. However, this > document has a lot of "MUST", which is too strong and I think it should only > appear in Standard Stack or BCP documents. If so, this document may need > revise, even rework in the WG. Please see Section 2. Those terms are *not* being employed as in RFC2119, and are employed in the same was as in RFC7084, which this document means to update. Thanks! Cheers, -- Fernando Gont SI6 Networks e-mail: fgont@si6networks.com PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492 From nobody Tue Oct 20 13:00:16 2020 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 7CFCA3A135A; Tue, 20 Oct 2020 13:00:06 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.146 X-Spam-Level: X-Spam-Status: No, score=-2.146 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, NICE_REPLY_A=-0.247, SPF_HELO_NONE=0.001, SPF_PASS=-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 z58EsVX4ORvc; Tue, 20 Oct 2020 13:00:04 -0700 (PDT) Received: from fgont.go6lab.si (fgont.go6lab.si [IPv6:2001:67c:27e4::14]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 3F9C53A1353; Tue, 20 Oct 2020 13:00:04 -0700 (PDT) Received: from [IPv6:2800:810:464:b9c:69b8:4602:916c:a007] (unknown [IPv6:2800:810:464:b9c:69b8:4602:916c:a007]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by fgont.go6lab.si (Postfix) with ESMTPSA id A8C75283ACC; Tue, 20 Oct 2020 20:00:00 +0000 (UTC) To: Sheng Jiang , int-dir@ietf.org Cc: last-call@ietf.org, v6ops@ietf.org, draft-ietf-v6ops-slaac-renum.all@ietf.org References: <160316412121.27287.5712211736911612350@ietfa.amsl.com> From: Fernando Gont Message-ID: Date: Tue, 20 Oct 2020 16:44:47 -0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.1 MIME-Version: 1.0 In-Reply-To: <160316412121.27287.5712211736911612350@ietfa.amsl.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Archived-At: Subject: Re: [Int-dir] Intdir telechat review of draft-ietf-v6ops-slaac-renum-04 X-BeenThere: int-dir@ietf.org X-Mailman-Version: 2.1.29 Precedence: list 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, 20 Oct 2020 20:00:08 -0000 Hello, Sheng, Thanks so much for your comments! In-line.... On 20/10/20 00:22, Sheng Jiang via Datatracker wrote: [....] > > Overall Summary: > > This draft is a document that intents to be an Informational RFC. This > document document the issue scenario that IPv6 prefixes becomes invalid without > any explicit signaling and nodes still use stale addresses, and gives > recommendations to improve the network operation. > > Overall this is a well written document. It is Ready for publish. Thanks! 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List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 23 Oct 2020 13:41:15 -0000 W3JlbW92aW5nIHNvbWUgZGlzdHJpYnV0aW9uIGxpc3RzXQ0KDQpTaGVuZywNCg0KVGhhbmsgeW91 IHZlcnkgbXVjaCBmb3IgeW91ciByZXZpZXdzIG9mIHRoaXMgSS1EIGFuZCB0aGUgYXNzb2NpYXRl ZCBJLUQuDQoNCkFzIHlvdSBtYXkgaGF2ZSBzZWVuLCBJIHVzZWQgeW91ciByZXZpZXcgY29tYmlu ZWQgd2l0aCBteSBvd24gb25lIHRvIGJhbGxvdCBteSBwb3NpdGlvbjogYW5kIG9uIHRoaXMgZG9j dW1lbnQgaXMgd2FzIGEgYmxvY2tpbmcgRElTQ1VTUyBiYXNlZCBvbiB5b3VyIHBvaW50ICh0aGF0 IEkgc2hhcmVkKS4gWW91IG1heSBoYXZlIGEgbG9vayBpbiB0aGUgcHVibGljIElFU0cgdGVsZWNo YXQgbWludXRlcyBvbmNlIHB1Ymxpc2hlZCBidXQgdGhpcyBpc3N1ZSB3YXMgYWxzbyByYWlzZWQg Ynkgb3RoZXIgcGVvcGxlIGFuZCB0aGUgZG9jdW1lbnQgd2lsbCBuZWVkIHRvIGJlY29tZSBlaXRo ZXIgaW5mb3JtYXRpb25hbCB3L28gdXBwZXIgY2FzZSB3b3JkcyBvciBCQ1AgKGJ1dCB3aXRoIGFu b3RoZXIgSUVURiBMYXN0IENhbGwpLg0KDQpBcyB3aXRoIG1vc3QgaWYgbm90IGFsbCBvdGhlciBk aXJlY3RvcmF0ZSByZXZpZXdzLCB5b3VyIHJldmlldyBhc3Npc3RlZCBtZSBhIGxvdCBpbiBteSBy ZXZpZXcgdGFzazogYWx3YXlzIGVhc2llciB0byBoYXZlIDQtZXllcyBvbiBhIGRvY3VtZW50IHRo YW4gb25seSB0d28gOy0pDQoNCkhhdmUgYSBuaWNlIFdFDQoNCi3DqXJpYw0KDQrvu78tLS0tLU9y aWdpbmFsIE1lc3NhZ2UtLS0tLQ0KRnJvbTogSW50LWRpciA8aW50LWRpci1ib3VuY2VzQGlldGYu b3JnPiBvbiBiZWhhbGYgb2YgU2hlbmcgSmlhbmcgdmlhIERhdGF0cmFja2VyIDxub3JlcGx5QGll dGYub3JnPg0KUmVwbHktVG86IFNoZW5nIEppYW5nIDxqaWFuZ3NoZW5nQGh1YXdlaS5jb20+DQpE YXRlOiBUdWVzZGF5LCAyMCBPY3RvYmVyIDIwMjAgYXQgMDQ6NTkNClRvOiAiaW50LWRpckBpZXRm Lm9yZyIgPGludC1kaXJAaWV0Zi5vcmc+DQpDYzogImxhc3QtY2FsbEBpZXRmLm9yZyIgPGxhc3Qt Y2FsbEBpZXRmLm9yZz4sICJ2Nm9wc0BpZXRmLm9yZyIgPHY2b3BzQGlldGYub3JnPiwgImRyYWZ0 LWlldGYtdjZvcHMtY3BlLXNsYWFjLXJlbnVtLmFsbEBpZXRmLm9yZyIgPGRyYWZ0LWlldGYtdjZv cHMtY3BlLXNsYWFjLXJlbnVtLmFsbEBpZXRmLm9yZz4NClN1YmplY3Q6IFtJbnQtZGlyXSBJbnRk aXIgdGVsZWNoYXQgcmV2aWV3IG9mIGRyYWZ0LWlldGYtdjZvcHMtY3BlLXNsYWFjLXJlbnVtLTA1 DQoNCiAgICBSZXZpZXdlcjogU2hlbmcgSmlhbmcNCiAgICBSZXZpZXcgcmVzdWx0OiBSZWFkeSB3 aXRoIElzc3Vlcw0KDQogICAgUmV2aWV3ZXI6IFNoZW5nIEppYW5nDQogICAgUmV2aWV3IHJlc3Vs dDogUmVhZHkgd2l0aCBJc3N1ZXMNCg0KICAgIEhpLA0KDQogICAgSSBoYXZlIHJldmlld2VkIHRo aXMgZG9jdW1lbnQgYXMgcGFydCBvZiB0aGUgSW50ZXJuZXQgQXJlYSBkaXJlY3RvcmF0ZSdzDQog ICAgb25nb2luZyBlZmZvcnQgdG8gcmV2aWV3IGFsbCBJRVRGIGRvY3VtZW50cyBiZWluZyBwcm9j ZXNzZWQgYnkgdGhlIElFU0cuICBUaGVzZQ0KICAgIGNvbW1lbnRzIHdlcmUgd3JpdHRlbiB3aXRo IHRoZSBpbnRlbnQgb2YgaW1wcm92aW5nIHRoZSBJRVRGIGRyYWZ0cy4NCg0KICAgIENvbW1lbnRz IHRoYXQgYXJlIG5vdCBhZGRyZXNzZWQgaW4gbGFzdCBjYWxsIG1heSBiZSBpbmNsdWRlZCBpbiBB RCByZXZpZXdzDQogICAgZHVyaW5nIHRoZSBJRVNHIHJldmlldy4gIERvY3VtZW50IGVkaXRvcnMg YW5kIFdHIGNoYWlycyBzaG91bGQgdHJlYXQgdGhlc2UNCiAgICBjb21tZW50cyBqdXN0IGxpa2Ug YW55IG90aGVyIGxhc3QgY2FsbCBjb21tZW50cy4NCg0KICAgIGRyYWZ0LWlldGYtdjZvcHMtY3Bl LXNsYWFjLXJlbnVtLTA1DQoNCiAgICBPdmVyYWxsIFN1bW1hcnk6DQoNCiAgICBUaGlzIGRyYWZ0 IGlzIGEgZG9jdW1lbnQgdGhhdCBpbnRlbnRzIHRvIGJlIGFuIEluZm9ybWF0aW9uYWwgIFJGQy4g VGhpcw0KICAgIGRvY3VtZW50IGdpdmVzIHNvbWUgcmVjb21tZW5kYXRpb24gdG8gIGltcHJvdmUg dGhlIHJlYWN0aW9uIGFuZCBwZXJmb3JtYW5jZSBvZg0KICAgIEN1c3RvbWVyIEVkZ2UgUm91dGVy cyBpbiB0aGUgSVB2NiByZW51bWJlcmluZyBldmVudHMuICBJdCB1cGRhdGVzIFJGQzcwODQuDQoN CiAgICBPdmVyYWxsIHRoaXMgaXMgYSB3ZWxsIHdyaXR0ZW4gZG9jdW1lbnQuIFRoZXJlIGlzIGEg c21hbGwgTml0OiBpbiB0aGUNCiAgICBpbmZvcm1hdGlvbiByZWZlcmVuY2UsIFtJLUQuZ29udC02 bWFuLXNsYWFjLXJlbnVtXSBoYXMgYmVlbiBsaXN0ZWQgdHdpY2UuDQoNCiAgICBIb3dldmVyLCBJ IGhhdmUgYSBtb3JlIGZ1bmRhbWVudGFsIHF1ZXN0aW9uLiBJdCBtYXkgYmUgZWFzaWx5IGFkZHJl c3NlZCBieSBBRA0KICAgIHNheWluZyBpdCB3YXMgbm90IGFuIGlzc3VlOiBhcyBhbiBpbmZvcm1h dGlvbmFsIGRvY3VtZW50LCBpdCBzaG91bGQgb25seSBnaXZlDQogICAgaW5mb3JtYXRpb24gb3Ig cmVjb21tZW5kYXRpb24gdG8gdGhlIHJlYWRlcnMgb3IgaW1wbGVtZW50b3JzLiBIb3dldmVyLCB0 aGlzDQogICAgZG9jdW1lbnQgaGFzIGEgbG90IG9mICJNVVNUIiwgd2hpY2ggaXMgdG9vIHN0cm9u ZyBhbmQgSSB0aGluayBpdCBzaG91bGQgb25seQ0KICAgIGFwcGVhciBpbiBTdGFuZGFyZCBTdGFj ayBvciBCQ1AgZG9jdW1lbnRzLiBJZiBzbywgdGhpcyBkb2N1bWVudCBtYXkgbmVlZA0KICAgIHJl dmlzZSwgZXZlbiByZXdvcmsgaW4gdGhlIFdHLg0KDQogICAgUmVnYXJkcywNCg0KICAgIFNoZW5n DQoNCg0KICAgIF9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f DQogICAgSW50LWRpciBtYWlsaW5nIGxpc3QNCiAgICBJbnQtZGlyQGlldGYub3JnDQogICAgaHR0 cHM6Ly93d3cuaWV0Zi5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnQtZGlyDQoNCg== From nobody Wed Oct 28 08:56:19 2020 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 10FBF3A09A8; Wed, 28 Oct 2020 08:56:13 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: Ted Lemon via Datatracker To: Cc: last-call@ietf.org, draft-ietf-tls-md5-sha1-deprecate.all@ietf.org, tls@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 7.21.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <160390057302.19892.7954643072007013939@ietfa.amsl.com> Reply-To: Ted Lemon Date: Wed, 28 Oct 2020 08:56:13 -0700 Archived-At: Subject: [Int-dir] Intdir last call review of draft-ietf-tls-md5-sha1-deprecate-04 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: Wed, 28 Oct 2020 15:56:19 -0000 Reviewer: Ted Lemon Review result: Ready with Nits This document is ready for publication, with one minor nit, which is included at the end. Éric additionally made the following request: As those hash algorithms were 'cheap' for TLS, I would appreciate a review of the impact if those algorithms are deprecated in TLS 1.2. I am not in a position to do any practical tests, but I will point out several things. First, deprecating MD5 is not going to cause a performance problem because it's slower than SHA1, so we really only need to worry about whether deprecating SHA1 will cause a problem. This document only deprecates SHA1 for use in digital signatures. It "does not deprecate SHA-1 in HMAC for record protection." Given the way TLS uses digital signatures, this should not be a serious concern. At worst case, SHA256 is about 24% slower than SHA1. Best case (shorter text) it is less than 16% slower. It's reasonable to expect that in common use in TLS, the texts being digested will be shorter, not longer. Further, the bulk of the computational burden of TLS is not in the generation of digests for digital signatures. Therefore it seems reasonable to expect that the performance impact of this change is vastly overshadowed by one of the very factors that motivates it: the increased speed of hash computation over time. Even assuming constant speed legacy hardware, the performance impact is not sufficient to cause concern when considering it as part of the total system that would be using TLS 1.2. Nit: In the abstract: The MD5 and SHA-1 hashing algorithms are steadily weakening in strength and their deprecation process should begin for their use in TLS 1.2 digital signatures. Technically, the strength of these algorithms hasn't changed. What's changed is that their strength is no longer sufficient to prevent realistic attacks. So it might be better to say something like "The vulnerability of MD5 and SHA-1 algorithms to practical attacks is steadly increasing and ..." From nobody Fri Oct 30 01:03:47 2020 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 365873A0CB9; Fri, 30 Oct 2020 01:03:45 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 0.033 X-Spam-Level: X-Spam-Status: No, score=0.033 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_SORBS_HTTP=0.001, RCVD_IN_SORBS_SOCKS=1.927, SPF_HELO_NONE=0.001, SPF_NONE=0.001, URIBL_BLOCKED=0.001] autolearn=no 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 mZQEks3LUkHr; Fri, 30 Oct 2020 01:03:41 -0700 (PDT) Received: from violet.upc.es (violet.upc.es [147.83.2.51]) (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 A82593A0BAE; Fri, 30 Oct 2020 01:03:40 -0700 (PDT) Received: from entelserver.upc.edu (entelserver.upc.es [147.83.40.4]) by violet.upc.es (8.14.4/8.14.4/Debian-4.1ubuntu1) with ESMTP id 09U83XRT030222; Fri, 30 Oct 2020 09:03:33 +0100 Received: from webmail.entel.upc.edu (webmail.entel.upc.edu [147.83.39.6]) by entelserver.upc.edu (Postfix) with ESMTP id 640AC1D53C1; Fri, 30 Oct 2020 09:03:32 +0100 (CET) Received: from 83.38.106.121 by webmail.entel.upc.edu with HTTP; Fri, 30 Oct 2020 09:03:33 +0100 Message-ID: <64715ab7503a1fb4f54fb7bab64f789b.squirrel@webmail.entel.upc.edu> In-Reply-To: References: Date: Fri, 30 Oct 2020 09:03:33 +0100 From: "Carles Gomez Montenegro" To: "Bernie Volz \(volz\)" Cc: "int-dir@ietf.org" , "Eric Vyncke (evyncke)" , "draft-ietf-lwig-tcp-constrained-node-networks@ietf.org" , "last-call@ietf.org" , "lwip@ietf.org" User-Agent: SquirrelMail/1.4.21-1.fc14 MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Priority: 3 (Normal) Importance: Normal X-Virus-Scanned: clamav-milter 0.100.3 at violet X-Virus-Status: Clean X-Greylist: Delayed for 00:37:13 by milter-greylist-4.3.9 (violet.upc.es [147.83.2.51]); Fri, 30 Oct 2020 09:03:35 +0100 (CET) Archived-At: Subject: Re: [Int-dir] [Lwip] Int Dir telechat review of draft-ietf-lwig-tcp-constrained-node-networks-11 X-BeenThere: int-dir@ietf.org X-Mailman-Version: 2.1.29 Precedence: list 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, 30 Oct 2020 08:03:45 -0000 Hi Bernie, Thank you very much for your review! We just submitted revision -12, which aims at addressing the comments received from the IESG and related reviewers, including yours: https://tools.ietf.org/html/draft-ietf-lwig-tcp-constrained-node-networks-12 Please find below our inline responses: > Hi: > > I am an assigned INT directorate reviewer for > draft-ietf-lwig-tcp-constrained-node-networks (-11). 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/. > > Reviewer: Bernie Volz > Review result: Ready (with minor nits) > > Minor nits: > > Section 2 should probably be updated to use the newer keyword boilerplate > (to reference RFC8174, etc.)? Actually, since the document does not use normative language, and according to the suggestions by some reviewers, we decided to remove Section 2. > In Section 4.1.2 RTO is used (and also later) but this isn't defined until > section 4.2.4. Perhaps this is better defined when first used? Agreed. > In section 4.2.2, the following paragraph is a bit odd: > > > One potentially relevant TCP option in the context of CNNs is TCP > > Fast Open (TFO) [RFC7413]. As > described in Section > 5.3, > TFO can be > > used to address the problem of traversing middleboxes that perform > > early filter state record deletion. > > Fast open isn't really used to address this issue. Section 5.3 is about > "TCP connection lifetime" and TFO is discussed there in the context of > reducing the (initial) messages and latency. Perhaps this paragraph needs > to be reworked a bit? If the point is about TFO, then you should indicate > what it is for (about optimizing short lived connections)? Yes, the paragraph was not in a very good shape, and perhaps TFO is not so specifically relevant to single-MSS stacks. Since TFO was better covered in Section 5.3 (now, Section 4.3) we decided to actually remove the paragraph. > General: While RFC-editor will do, s/subsection/section is probably a good > idea as subsection isn't generally used in IETF documents when doing > references. Done. > For section 8, it is too bad that some version/release information about > the particular "code" analyzed wasn't included. It says "be aware that > this Annex is based on information available as of the writing". But will > that still be valid when the RFC finally becomes available? Work started > on the document in Oct 2016 and I didn't go back to see when the various > sections were added. On the other hand, perhaps these implementations > don't evolve as rapidly as general software? It does seem to be a nice > survey of the available implementations. We understand that the information in section 8 is currently valid. We did our best to provide references (or version numbers) whenever possible. However, information sources are quite heterogeneous, and in a couple of cases (FreeRTOS, uC/OS) we were not able to find a specific release number related to the information provided. > And, there are at least the following typos: > > characterstic > codesize (perhaps code size) > bandwitdh > practise > differrent > communcation We made the corresponding corrections in our working copy, but I just realized that there is still one instance of "characterstic" and "codesize" in -12... The rest of typos have been corrected. Sorry for that. We will definitely address those in the next revision. :( > > * Bernie Thanks, Carles (on behalf of the authors) > > > > > _______________________________________________ > Lwip mailing list > Lwip@ietf.org > https://www.ietf.org/mailman/listinfo/lwip > From nobody Fri Oct 30 02:01:11 2020 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 297823A0C6C; Fri, 30 Oct 2020 02:01:09 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 0.033 X-Spam-Level: X-Spam-Status: No, score=0.033 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_SORBS_HTTP=0.001, RCVD_IN_SORBS_SOCKS=1.927, SPF_HELO_NONE=0.001, SPF_NONE=0.001, URIBL_BLOCKED=0.001] autolearn=no 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 bHgsMJLY0rBB; Fri, 30 Oct 2020 02:01:08 -0700 (PDT) Received: from dash.upc.es (dash.upc.es [147.83.2.50]) (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 347D93A0B67; Fri, 30 Oct 2020 02:01:07 -0700 (PDT) Received: from entelserver.upc.edu (entelserver.upc.es [147.83.40.4]) by dash.upc.es (8.14.4/8.14.4/Debian-4.1ubuntu1) with ESMTP id 09U912Mk019454; Fri, 30 Oct 2020 10:01:02 +0100 Received: from webmail.entel.upc.edu (webmail.entel.upc.edu [147.83.39.6]) by entelserver.upc.edu (Postfix) with ESMTP id CDD411D53C1; Fri, 30 Oct 2020 10:01:00 +0100 (CET) Received: from 83.38.106.121 by webmail.entel.upc.edu with HTTP; Fri, 30 Oct 2020 10:01:01 +0100 Message-ID: <9f838fcf2999bcc1ab38734cd67adf68.squirrel@webmail.entel.upc.edu> In-Reply-To: <64715ab7503a1fb4f54fb7bab64f789b.squirrel@webmail.entel.upc.edu> References: <64715ab7503a1fb4f54fb7bab64f789b.squirrel@webmail.entel.upc.edu> Date: Fri, 30 Oct 2020 10:01:01 +0100 From: "Carles Gomez Montenegro" To: "Bernie Volz \(volz\)" Cc: "int-dir@ietf.org" , "Eric Vyncke (evyncke)" , "draft-ietf-lwig-tcp-constrained-node-networks@ietf.org" , "last-call@ietf.org" , "lwip@ietf.org" User-Agent: SquirrelMail/1.4.21-1.fc14 MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Priority: 3 (Normal) Importance: Normal X-Virus-Scanned: clamav-milter 0.100.3 at dash X-Virus-Status: Clean X-Greylist: Delayed for 01:14:17 by milter-greylist-4.3.9 (dash.upc.es [147.83.2.50]); Fri, 30 Oct 2020 10:01:02 +0100 (CET) Archived-At: Subject: Re: [Int-dir] [Lwip] Int Dir telechat review of draft-ietf-lwig-tcp-constrained-node-networks-11 X-BeenThere: int-dir@ietf.org X-Mailman-Version: 2.1.29 Precedence: list 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, 30 Oct 2020 09:01:09 -0000 Hi again, Bernie, > We made the corresponding corrections in our working copy, but I just > realized that there is still one instance of "characterstic" and > "codesize" in -12... The rest of typos have been corrected. Sorry for > that. We will definitely address those in the next revision. :( We just submitted -13, where those typos are now fixed: https://tools.ietf.org/html/draft-ietf-lwig-tcp-constrained-node-networks-13 Thanks, Carles (on behalf of the authors) From nobody Fri Oct 30 04:10:55 2020 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 8FCB23A09EA; Fri, 30 Oct 2020 04:10:49 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -9.598 X-Spam-Level: X-Spam-Status: No, score=-9.598 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_PASS=-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=M3n1Nm/S; 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