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L286cD48L3NwYW4+PC9wPg0KPHAgY2xhc3M9Ik1zb05vcm1hbCI+PHNwYW4gc3R5bGU9ImZvbnQt c2l6ZToxMS4wcHQiPjxvOnA+Jm5ic3A7PC9vOnA+PC9zcGFuPjwvcD4NCjxwIGNsYXNzPSJNc29O b3JtYWwiPjxzcGFuIHN0eWxlPSJmb250LXNpemU6MTEuMHB0Ij48bzpwPiZuYnNwOzwvbzpwPjwv c3Bhbj48L3A+DQo8L2Rpdj4NCjwvYm9keT4NCjwvaHRtbD4NCg== --_000_05C9D676DCF5455FA5FE93657FF83EC8ciscocom_-- From nobody Thu Sep 12 03:06:37 2019 Return-Path: X-Original-To: rtg-dir@ietf.org Delivered-To: rtg-dir@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 0FC471200D5; Thu, 12 Sep 2019 03:06:21 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: Dhruv Dhody via Datatracker To: Cc: lsr@ietf.org, draft-ietf-isis-mpls-elc.all@ietf.org, ietf@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.101.0 Auto-Submitted: auto-generated Precedence: bulk Reply-To: Dhruv Dhody Message-ID: <156828278097.16614.688259101169694148@ietfa.amsl.com> Date: Thu, 12 Sep 2019 03:06:21 -0700 Archived-At: Subject: [RTG-DIR] Rtgdir early review of draft-ietf-isis-mpls-elc-08 X-BeenThere: rtg-dir@ietf.org X-Mailman-Version: 2.1.29 List-Id: Routing Area Directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Sep 2019 10:06:21 -0000 Reviewer: Dhruv Dhody Review result: Has Issues Subject: RtgDir Early review: draft-ietf-isis-mpls-elc-08 Hello I have been selected to do a routing directorate “early” review of this draft. ​https://datatracker.ietf.org/doc/draft-ietf-isis-mpls-elc/ The routing directorate will, on request from the working group chair, perform an “early” review of a draft before it is submitted for publication to the IESG. The early review can be performed at any time during the draft’s lifetime as a working group document. The purpose of the early review depends on the stage that the document has reached. As this document is in working group last call, my focus for the review was to determine whether the document is ready to be published. Please consider my comments along with the other working group last call comments. For more information about the Routing Directorate, please see ​http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir Document: draft-ietf-isis-mpls-elc-08 Reviewer: Dhruv Dhody Review Date: 12-09-2019 Intended Status: Standards Track Summary: I have some minor concerns about this document that I think should be resolved before it is submitted to the IESG. The draft is focused and straightforward, the reader needs to be aware of RFC6790 and draft-ietf-mpls-spring-entropy-label beforehand. I have reviewed this and the OSPF I-D together and you will find similar comments for both I-Ds. Minor ***** (1) Could you mark that the codepoints mentioned in the draft are early allocated by IANA? Currently it says the value are desired. I also suggest following change in Section 7 (IANA Considerations) - OLD: IANA is requested to allocate the E-bit (bit position 3 is desired) from the "Bit Values for Prefix Attribute Flags Sub-TLV" registry. IANA is requested to allocate a MSD type (the type code of 2 is desired) from the "IGP MSD Types" registry for ERLD. NEW: IANA is requested to confirm the early allocation of the E-bit (Bit position 3) in the "Bit Values for Prefix Attribute Flags Sub-TLV" registry. IANA is requested to confirm the early allocation of the ERLD (type code of 2) in the "IGP MSD Types" registry. END (2) Section 3 talks about ERLD in Node MSD sub-TLV. But what happens if one receives ERLD in the Link MSD sub-TLV? As per my understanding this is not allowed, better to add normative text for the case then. Also we have this text in draft-ietf-mpls-spring-entropy-label - In a distributed switching architecture, each linecard may have a different capability in terms of ERLD. For simplicity, an implementation MAY use the minimum ERLD of all linecards as the ERLD value for the system. There may also be a case where a router has a fast switching path (handled by an ASIC or network processor) and a slow switching path (handled by a CPU) with a different ERLD for each switching path. Again, for simplicity's sake, an implementation MAY use the minimum ERLD as the ERLD value for the system. The drawback of using a single ERLD for a system lower than the capability of one or more specific component is that it may increase the number of ELI/ELs inserted. This leads to an increase of the label stack size and may have an impact on the capability of the ingress node to push this label stack. If we are deviating from this and opting for the node (marked 'MAY' above) as the only possibility, we need to handle this properly. Maybe check with chairs/AD on this! (3) Section 4, can we add some more description on what the 'E' flags means, in the similar style of other flags [https://tools.ietf.org/html/rfc7794#section-2.1] (4) Section 8, suggest to also add one sentence for the impact of advertising incorrect ERLD. If there isn't any, that can also be stated. Nits **** (1) Suggested ordering of sections - ..ELC/ERLD/BGP-LS/ACK.. [matching between OSPF/ISIS] (2) Section 2, add [I-D.ietf-mpls-spring-entropy-label] for terminology reference (3) Section 3, Add reference to draft-ietf-mpls-spring-entropy-label for the definition and usage of ERLD (4) Section 6, The ERLD MSD-type introduced for IS-IS in Section 3 is advertised using the Node MSD TLV (TLV 266) of the BGP-LS Node NLRI Attribute as defined in section 3 of [I-D.ietf-idr-bgp-ls-segment-routing-ext]. I think you mean draft-ietf-idr-bgp-ls-segment-routing-msd here! Also, maybe change the title "BGP-LS Extension" as there is no 'extension' required, ELC/ERLD is BGP-LS would be automatically supported. (5) Expand MSD on first use. (6) The first figure is titled Figure 2! (7) Section 4, mark the figure as "Prefix Attribute Flags" (8) All references are marked Normative, please re-check if this is intentional. Thanks! Dhruv From nobody Thu Sep 12 03:12:08 2019 Return-Path: X-Original-To: rtg-dir@ietf.org Delivered-To: rtg-dir@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 12864120836; Thu, 12 Sep 2019 03:11:54 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: Dhruv Dhody via Datatracker To: Cc: lsr@ietf.org, ietf@ietf.org, draft-ietf-ospf-mpls-elc.all@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.101.0 Auto-Submitted: auto-generated Precedence: bulk Reply-To: Dhruv Dhody Message-ID: <156828311401.16614.6386779752971919411@ietfa.amsl.com> Date: Thu, 12 Sep 2019 03:11:54 -0700 Archived-At: Subject: [RTG-DIR] Rtgdir early review of draft-ietf-ospf-mpls-elc-09 X-BeenThere: rtg-dir@ietf.org X-Mailman-Version: 2.1.29 List-Id: Routing Area Directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Sep 2019 10:11:54 -0000 Reviewer: Dhruv Dhody Review result: Has Issues Subject: RtgDir Early review: draft-ietf-ospf-mpls-elc-09 Hello I have been selected to do a routing directorate “early” review of this draft. ​https://datatracker.ietf.org/doc/draft-ietf-ospf-mpls-elc/ The routing directorate will, on request from the working group chair, perform an “early” review of a draft before it is submitted for publication to the IESG. The early review can be performed at any time during the draft’s lifetime as a working group document. The purpose of the early review depends on the stage that the document has reached. As this document is in working group last call, my focus for the review was to determine whether the document is ready to be published. Please consider my comments along with the other working group last call comments. For more information about the Routing Directorate, please see ​http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir Document: draft-ietf-ospf-mpls-elc-09 Reviewer: Dhruv Dhody Review Date: 12-09-2019 Intended Status: Standards Track Summary: I have some minor concerns about this document that I think should be resolved before it is submitted to the IESG. The draft is focused and straightforward, the reader needs to be aware of RFC6790 and draft-ietf-mpls-spring-entropy-label beforehand. I have reviewed this and the IS-IS I-D together and you will find similar comments for both I-Ds. Minor ***** (1) Please use updated requirement language text as per RFC 8174, as you do have a mix of upper-case and lower-case terms in your I-D. The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all capitals, as shown here. (2) Could you mark that the codepoints mentioned in the draft are early allocated by IANA? This would make it clear that you are not squatting on them. I also suggest following change in Section 7 (IANA Considerations) - OLD: This document requests IANA to allocate one flag from the OSPFv2 Extended Prefix TLV Flags registry: 0x20 - E-Flag (ELC Flag) This document requests IANA to allocate one flag from the OSPFv3 Prefix Options registry: 0x04 - E-Flag (ELC Flag) NEW: IANA is requested to confirm the early allocation of the following code point in the OSPFv2 Extended Prefix TLV Flags registry: 0x20 - E-Flag (ELC Flag) IANA is requested to confirm the early allocation of the following code point in the the OSPFv3 Prefix Options registry: 0x04 - E-Flag (ELC Flag) END (3) Section 4, I think a reference to RFC 8476 is needed as well to state the ERLD is advertised as part of Node MSD advertisement as defined in [RFC8476]. As mentioned in my review of the IS-IS I-D, what happens if one receives ERLD in the Link MSD advertisement? As per my understanding this is not allowed, better to add normative text for the case then. (4) Section 8, suggest to also add one sentence for the impact of advertising incorrect ERLD. If there isn't any, that can also be stated. Nits **** (1) Suggested ordering of sections - ..ELC/ERLD/BGP-LS/ACK.. [matching between OSPF/ISIS] (2) Section 2, add [I-D.ietf-mpls-spring-entropy-label] for terminology reference (3) Section 3, Add reference to draft-ietf-mpls-spring-entropy-label for the definition and usage of ERLD (4) Section 6, The ERLD MSD-type introduced for OSPF in Section 4 is advertised using the Node MSD TLV (TLV 266) of the BGP-LS Node NLRI Attribute as defined in section 3 of [I-D.ietf-idr-bgp-ls-segment-routing-ext]. I think you mean draft-ietf-idr-bgp-ls-segment-routing-msd here! Also, maybe change the title "BGP-LS Extension" as there is no 'extension' required, ELC/ERLD is BGP-LS would be automatically supported. (5) Expand MSD on first use. Thanks! Dhruv From nobody Fri Sep 13 12:46:23 2019 Return-Path: X-Original-To: rtg-dir@ietfa.amsl.com Delivered-To: rtg-dir@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 583961200FF; Fri, 13 Sep 2019 12:46:07 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.5 X-Spam-Level: X-Spam-Status: No, score=-14.5 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, 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=V7pgmsIh; dkim=pass (1024-bit key) header.d=cisco.onmicrosoft.com header.b=yxtHQjv2 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 G2JVdaVY8v7v; Fri, 13 Sep 2019 12:46:04 -0700 (PDT) Received: 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b=yxtHQjv2OTv9TX9t3uDt6V9V0WLP2eggYWKBQa21U2ndRI0afDKvvST+qsGW+LF126/adKDyK21n7id/mf2IRyC3qbH8aXszWu9XJMxDYbxunJCsRHGRR4qcmpmnI6ZU4nDMBMInIklVZhh47dVkv9yHvRZPuH3HrRmEYS4qMps= Received: from MN2PR11MB4221.namprd11.prod.outlook.com (52.135.38.14) by MN2PR11MB4013.namprd11.prod.outlook.com (10.255.181.154) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2263.21; Fri, 13 Sep 2019 19:46:00 +0000 Received: from MN2PR11MB4221.namprd11.prod.outlook.com ([fe80::cdc1:a2cf:eb3:a420]) by MN2PR11MB4221.namprd11.prod.outlook.com ([fe80::cdc1:a2cf:eb3:a420%6]) with mapi id 15.20.2263.021; Fri, 13 Sep 2019 19:46:00 +0000 From: "Acee Lindem (acee)" To: Dhruv Dhody , "rtg-dir@ietf.org" CC: "lsr@ietf.org" , "ietf@ietf.org" , "draft-ietf-ospf-mpls-elc.all@ietf.org" Thread-Topic: Rtgdir early review of draft-ietf-ospf-mpls-elc-09 Thread-Index: AQHVaVKOtAcj5qDiOEmOWCHdRgjr3KcpwgYA Date: Fri, 13 Sep 2019 19:46:00 +0000 Message-ID: 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eSBzdXBwb3J0ZWQuDQogICAgDQogICAgKDUpIEV4cGFuZCBNU0Qgb24gZmlyc3QgdXNlLg0KICAg ICg2KSBUaGUgZmlyc3QgZmlndXJlIGlzIHRpdGxlZCBGaWd1cmUgMiENCiAgICAoNykgU2VjdGlv biA0LCBtYXJrIHRoZSBmaWd1cmUgYXMgIlByZWZpeCBBdHRyaWJ1dGUgRmxhZ3MiDQogICAgKDgp IEFsbCByZWZlcmVuY2VzIGFyZSBtYXJrZWQgTm9ybWF0aXZlLCBwbGVhc2UgcmUtY2hlY2sgaWYg dGhpcyBpcyBpbnRlbnRpb25hbC4NCiAgICANCiAgICBUaGFua3MhDQogICAgRGhydXYNCiAgICAN CiAgICANCiAgICANCg0K From nobody Sat Sep 14 21:26:27 2019 Return-Path: X-Original-To: rtg-dir@ietf.org Delivered-To: rtg-dir@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 3718512010C; Sat, 14 Sep 2019 21:26:26 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: Joel Halpern via Datatracker To: Cc: draft-ietf-idr-ext-opt-param.all@ietf.org, idr@ietf.org, ietf@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.101.0 Auto-Submitted: auto-generated Precedence: bulk Reply-To: Joel Halpern Message-ID: <156852158610.2942.7120450929500158327@ietfa.amsl.com> Date: Sat, 14 Sep 2019 21:26:26 -0700 Archived-At: Subject: [RTG-DIR] Rtgdir early review of draft-ietf-idr-ext-opt-param-07 X-BeenThere: rtg-dir@ietf.org X-Mailman-Version: 2.1.29 List-Id: Routing Area Directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 15 Sep 2019 04:26:26 -0000 Reviewer: Joel Halpern Review result: Ready Hello I have been selected to do a routing directorate “early” review of this draft. ​https://datatracker.ietf.org/doc/draft-foo-name/ The routing directorate will, on request from the working group chair, perform an “early” review of a draft before it is submitted for publication to the IESG. The early review can be performed at any time during the draft’s lifetime as a working group document. The purpose of the early review depends on the stage that the document has reached. As this document has recently been adopted by the working group, my focus for the review is on providing a new perspective on the work, with the intention of catching any issues early on in the document's life cycle. As this document is in working group last call, my focus for the review was to determine whether the document is ready to be published. Please consider my comments along with the other working group last call comments. If neither of the above describes the circumstances of the review, then write a brief summary of the reasons for and purpose of the review here (get this from the WG chair if you are not sure). For more information about the Routing Directorate, please see ​http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir Document: draft-ietf-idr-ext-opt-param-07 Reviewer: Joel Halpern Review Date: 25-Sept-2019 Intended Status: Proposed Standard Summary: No issues found. This documents is ready to proceed to the IESG. Major Comments: N/A Minor Comments: N/A Nits: You might consider replacing "this" in "the value of this field" in the 2nd from last paragraph of section 2. I knew what it had to refer to, but it stalled me and caused me to recheck the grammar twice before I was sure it said what it needed to say. It may confuse some readers. From nobody Sun Sep 15 05:13:35 2019 Return-Path: X-Original-To: rtg-dir@ietfa.amsl.com Delivered-To: rtg-dir@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E6C70120090; Sun, 15 Sep 2019 05:13:27 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 0.8 X-Spam-Level: X-Spam-Status: No, score=0.8 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, GB_SUMOF=5, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-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 CnOJi5BVj9Vr; Sun, 15 Sep 2019 05:13:26 -0700 (PDT) Received: from huawei.com (lhrrgout.huawei.com [185.176.76.210]) (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 C115312000F; Sun, 15 Sep 2019 05:13:25 -0700 (PDT) Received: from lhreml705-cah.china.huawei.com (unknown [172.18.7.108]) by Forcepoint Email with ESMTP id B2508E9242D77A682FAA; Sun, 15 Sep 2019 13:13:23 +0100 (IST) Received: from lhreml725-chm.china.huawei.com (10.201.108.76) by lhreml705-cah.china.huawei.com (10.201.108.46) with Microsoft SMTP Server (TLS) id 14.3.408.0; Sun, 15 Sep 2019 13:13:23 +0100 Received: from lhreml725-chm.china.huawei.com (10.201.108.76) by lhreml725-chm.china.huawei.com (10.201.108.76) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Sun, 15 Sep 2019 13:13:23 +0100 Received: from DGGEML403-HUB.china.huawei.com (10.3.17.33) by lhreml725-chm.china.huawei.com (10.201.108.76) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.1.1713.5 via Frontend Transport; Sun, 15 Sep 2019 13:13:23 +0100 Received: from DGGEML510-MBX.china.huawei.com ([169.254.2.221]) by DGGEML403-HUB.china.huawei.com ([fe80::74d9:c659:fbec:21fa%31]) with mapi id 14.03.0439.000; Sun, 15 Sep 2019 20:13:20 +0800 From: Mach Chen To: Routing ADs CC: Routing Directorate , "idr@ietf.org" , "draft-ietf-idr-bgp-ls-segment-routing-msd@ietf.org" Thread-Topic: RtgDir review: draft-ietf-idr-bgp-ls-segment-routing-msd-05.txt Thread-Index: AdVjAto+gGFNjTjzT2S3OHztFyKdOg== Date: Sun, 15 Sep 2019 12:13:20 +0000 Message-ID: Accept-Language: en-US, zh-CN Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.45.213.58] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-CFilter-Loop: Reflected Archived-At: Subject: [RTG-DIR] RtgDir review: draft-ietf-idr-bgp-ls-segment-routing-msd-05.txt X-BeenThere: rtg-dir@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Routing Area Directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 15 Sep 2019 12:13:28 -0000 Hello, I have been selected as the Routing Directorate reviewer for this draft. Th= e Routing Directorate seeks to review all routing or routing-related drafts= as they pass through IETF last call and IESG review, and sometimes on spec= ial request. The purpose of the review is to provide assistance to the Rout= ing ADs. For more information about the Routing Directorate, please see htt= p://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir Although these comments are primarily for the use of the Routing ADs, it wo= uld be helpful if you could consider them along with any other IETF Last Ca= ll comments that you receive, and strive to resolve them through discussion= or by updating the draft. Document: draft-ietf-idr-bgp-ls-segment-routing-msd-05.txt Reviewer: Mach Chen Review Date: 10 September 2019=20 Intended Status: Standards Track Summary:=20 I have some minor concerns about this document that I think should be resol= ved before publication. Comments: Generally, I found the draft quite readable, with a clear explanation of th= e problem statements and solutions. However, I have one minor comment and a= nit. Major Issues: No major issues found. Minor Issues: This draft is an extension to BGP-LS (RFC 7752) that is under a re-spin, I = have a question whether this draft should reference to RFC 7752 or the new = bis document. Nits: 1.1.1. Terminology Part of the last bullet should be separated into a dedicated paragraph, it = looks like an copy and pastes nit.=20 "The number of labels imposed is then the sum of the number of labels that = are replaced and the number of labels that are pushed. See [RFC3031]" Best regards, Mach From nobody Sun Sep 15 15:13:11 2019 Return-Path: X-Original-To: rtg-dir@ietfa.amsl.com Delivered-To: rtg-dir@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id CF70E1200CD; Sun, 15 Sep 2019 15:13:02 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 3.003 X-Spam-Level: *** X-Spam-Status: No, score=3.003 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, GB_SUMOF=5, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=no autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.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 EU33u-3k3v84; Sun, 15 Sep 2019 15:13:01 -0700 (PDT) Received: from mail-pg1-x52d.google.com (mail-pg1-x52d.google.com [IPv6:2607:f8b0:4864:20::52d]) (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 287DA12001E; Sun, 15 Sep 2019 15:13:01 -0700 (PDT) Received: by mail-pg1-x52d.google.com with SMTP id n4so18512392pgv.2; Sun, 15 Sep 2019 15:13:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:message-id:in-reply-to:references:subject :mime-version; bh=+wMXPYufwKvY/9ZK4mroutWBJlVsDQ9ynYgEc1mIFMQ=; b=t/17RkUqxntGZ13dj9Ep04lKmhOqhflxS9TKePCLKYPimIKZcupQXnWHHD/Pp/1krG RrjCqWmOqMWf/Qh1kqEsxp6Ops9FvWZZ6K8FgENC97k3r2n2DHqAE/ol/nhURJaeF9yW Dk7HrhKMk+PFzDXi3MQj0svhBs52HcqKIMiFAbkbn13+IyoYSun5Wwh44ed0chGPGUmu SrQQI8oinjBRcY0NGx5CkyXSHucJdprTjxmhwWIyXImUotwDco3XYCtaiYaO07Sk5/A3 oOGXdV/kFAGM0QinQqDlP1vlYdY1pWsn4HSBAhBTXdJS2BJo4UfJNdH05yJJEMYhijZn lcLw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:message-id:in-reply-to :references:subject:mime-version; bh=+wMXPYufwKvY/9ZK4mroutWBJlVsDQ9ynYgEc1mIFMQ=; b=eaiwKOCldPWHyY1yOBAtDfXQSJquBQSPsC3xfWn5iYkLTkD4ETP9WWELUHx6jJqDwj WQSddwAv7NXW9CnF85m0rpJfdSs7QD+1qG9i4Aiaqo6DXsym9+XE0obPv09HRUzq056W 76hF8Z5u57JKT/z4zAUErmc1aNd8uaMSXM189uT8ydhzs8zGTfv72I9UM2bgWtEMnSRw aYegZx/eQxZB/hAesceHI5sSrLn7MSI90IW5W1WEBrGcpfGEzVQWE2/bsYAJxf6jXo3R InJEyN7DbqToi5gapwhZQg/7dFkDswaNgstA+t5JdQXtXnzyLAX+ZoHLpXbCwhkVqIdk lkQA== X-Gm-Message-State: APjAAAV4tdPVqZMqV9h7WuvnIin8j84UmUdIDokyB+y8Gp30EjgLLXLu u7Y/jgoENtvLOq2guqnUTXQ= X-Google-Smtp-Source: APXvYqxGMX/lJe2bfQ29mFNdzmoAI0Phc+qKtSambnIN3S9zm7kJAHg+WBVAl4DHkwwzM9IS7VgRPQ== X-Received: by 2002:a17:90a:8d0c:: with SMTP id c12mr17438706pjo.133.1568585580239; Sun, 15 Sep 2019 15:13:00 -0700 (PDT) Received: from [192.168.1.20] (c-73-189-13-44.hsd1.ca.comcast.net. [73.189.13.44]) by smtp.gmail.com with ESMTPSA id z10sm2830424pjr.15.2019.09.15.15.12.59 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 15 Sep 2019 15:12:59 -0700 (PDT) Date: Sun, 15 Sep 2019 15:12:53 -0700 From: Jeff Tantsura To: Routing ADs , Mach Chen Cc: Routing Directorate , "=?utf-8?Q?idr=40ietf.org?=" , "=?utf-8?Q?draft-ietf-idr-bgp-ls-segment-routing-msd=40ietf.org?=" Message-ID: <5b4dc57c-4d7f-451f-ad32-6b4c1a7be8f0@Spark> In-Reply-To: References: X-Readdle-Message-ID: 5b4dc57c-4d7f-451f-ad32-6b4c1a7be8f0@Spark MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="5d7eb76a_579478fe_64bf" Archived-At: Subject: Re: [RTG-DIR] RtgDir review: draft-ietf-idr-bgp-ls-segment-routing-msd-05.txt X-BeenThere: rtg-dir@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Routing Area Directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 15 Sep 2019 22:13:03 -0000 --5d7eb76a_579478fe_64bf Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Hello Mach, Many thanks for your review. Please note - the latest version of the document is 07. Please see inline Cheers, Jeff On Sep 15, 2019, 5:13 AM -0700, Mach Chen , wrote: > Hello, > > I have been selected as the Routing Directorate reviewer for this draft. The Routing Directorate seeks to review all routing or routing-related drafts as they pass through IETF last call and IESG review, and sometimes on special request. The purpose of the review is to provide assistance to the Routing ADs. For more information about the Routing Directorate, please see http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir > > Although these comments are primarily for the use of the Routing ADs, it would be helpful if you could consider them along with any other IETF Last Call comments that you receive, and strive to resolve them through discussion or by updating the draft. > > Document: draft-ietf-idr-bgp-ls-segment-routing-msd-05.txt > Reviewer: Mach Chen > Review Date: 10 September 2019 > Intended Status: Standards Track > > Summary: > I have some minor concerns about this document that I think should be resolved before publication. > > > Comments: > > Generally, I found the draft quite readable, with a clear explanation of the problem statements and solutions. However, I have one minor comment and a nit. > > Major Issues: > > No major issues found. > > > Minor Issues: > > This draft is an extension to BGP-LS (RFC 7752) that is under a re-spin, I have a question whether this draft should reference to RFC 7752 or the new bis document. [jeff] we have added clarifying text in the 07 version. please let me know if this addresses your comments. > > > Nits: > 1.1.1. Terminology > > Part of the last bullet should be separated into a dedicated paragraph, it looks like an copy and pastes nit. > > "The number of labels imposed is then the sum of the number of labels that are > replaced and the number of labels that are pushed. See [RFC3031]" > > Best regards, > Mach > --5d7eb76a_579478fe_64bf Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline
Hello Mach,

Many thanks for your review.
Please note - the latest version of the document is= 07.

Please see inline

Cheers,
Jeff
On Sep 15, 2019, 5:13 AM -0700, Mac= h Chen <mach.chen=40huawei.com>, wrote:
He= llo,

I have been selected as the Routing Directorate reviewer for this draft. = The Routing Directorate seeks to review all routing or routing-related dr= afts as they pass through IET=46 last call and IESG review, and sometimes= on special request. The purpose of the review is to provide assistance t= o the Routing ADs. =46or more information about the Routing Directorate, = please see http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir

Although these comments are primarily for the use of the Routing ADs, it = would be helpful if you could consider them along with any other IET=46 L= ast Call comments that you receive, and strive to resolve them through di= scussion or by updating the draft.

Document: draft-ietf-idr-bgp-ls-segment-routing-msd-05.txt
Reviewer: Mach Chen
Review Date: 10 September 2019
Intended Status: Standards Track

Summary:
I have some minor concerns about this document that I think should be res= olved before publication.


Comments:

Generally, I found the draft quite readable, with a clear explanation of = the problem statements and solutions. However, I have one minor comment a= nd a nit.

Major Issues:

No major issues found.


Minor Issues:

This draft is an extension to BGP-LS (R=46C 7752) that is under a re-spin= , I have a question whether this draft should reference to R=46C 7752 or = the new bis document.&=23160;
=5Bjeff=5D we have added clarifying text in the 07 version. please l= et me know if this addresses your comments.&=23160;

Nits:
1.1.1. Terminology

Part of the last bullet should be separated into a dedicated paragraph, i= t looks like an copy and pastes nit.

=22The number of labels imposed is then the sum of the number of labels t= hat are
replaced and the number of labels that are pushed. See =5BR=46C3031=5D=22=

Best regards,
Mach

--5d7eb76a_579478fe_64bf-- From nobody Sun Sep 15 15:17:49 2019 Return-Path: X-Original-To: rtg-dir@ietfa.amsl.com Delivered-To: rtg-dir@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 50C111200DF; Sun, 15 Sep 2019 15:17:40 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 3.003 X-Spam-Level: *** X-Spam-Status: No, score=3.003 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, GB_SUMOF=5, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=no autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.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 MOpmX1Dm8BLG; Sun, 15 Sep 2019 15:17:38 -0700 (PDT) Received: from mail-pg1-x536.google.com (mail-pg1-x536.google.com [IPv6:2607:f8b0:4864:20::536]) (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 77F8C12001E; Sun, 15 Sep 2019 15:17:38 -0700 (PDT) Received: by mail-pg1-x536.google.com with SMTP id c17so10744360pgg.4; Sun, 15 Sep 2019 15:17:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:message-id:in-reply-to:references:subject :mime-version; bh=eE+617PoJnJEDVNn4T/0AH+agrehvcf/FzHPdL2SLmE=; b=jsUFR6NdZwxMM1IgpZozGEvcz7ZPFsjBJN30O6wmR2KDrjhPRwhVwIrih1Oyd/e6bE bAmhCftlleIafE9n2Va59ArfjBLf797bnM1aqKFkjlCvKkZuScDNihBemq35JBKdzMSa gp6TPTwgkTFZMcOsoIq6AuJGQGgboXkuGxpVy64JPXn846/J/FYY3C4+gqOJ9TknSiqw 0tmrVYiCYXRcdz6XApFgrH4diU4MMbp62xh2/JtAw1yIINfAS1Nr6Kmt1DvV0HLbZRyR skIcynZmbFQ5BwViVRnF7ScWsJY+5vNASM7HBk9KlvflNqkxFMjwmwoJngXSQxU26oln 6Crw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:message-id:in-reply-to :references:subject:mime-version; bh=eE+617PoJnJEDVNn4T/0AH+agrehvcf/FzHPdL2SLmE=; b=torRGGhyPMxrzsCd0kYJNQ2QasHVNlNOzUJG2XDnC4B++CXpVAlCUB4mAqLKyNjEB5 RI/eUeHYWY8smSdbOSvAW3YqdT8NO5uOLo0fLuPQHnPyEVRlteG8lWjZOQ34sI5vpz4u 66dfHH5Jz2XtJeqr2AgRTggH9Nw2Kg24gzRhmKVAUugQ5m+qj6uPbtjvfiptHCWkHIyo v6PkjDnebVhEvPtJfoorpQ+aUJZUHv11RGNaTGHA1TrRJE23lofuBtGDDG/yYy2hY/Mh 11r938COpWJrfjPQmQNbHBDDaT+V7WR7EOgAGjD8wcm6CnJNgkdGa1CgSAJDS+bmHkID FXyQ== X-Gm-Message-State: APjAAAXblfA2XzgTatG8Do6BTnyKMLTQpi8l1k6je04FiiR/1JpgQKB4 cElk2sOfn4c03KTVwZzN6kI= X-Google-Smtp-Source: APXvYqzrGOWiEel7c9NWheHoKnJEsaBXe4r+R3Ub13OtgnFWlkk8KY8Smg6bT34fFQ3174s60JKhXA== X-Received: by 2002:a17:90a:24a1:: with SMTP id i30mr18398164pje.128.1568585857899; Sun, 15 Sep 2019 15:17:37 -0700 (PDT) Received: from [192.168.1.20] (c-73-189-13-44.hsd1.ca.comcast.net. [73.189.13.44]) by smtp.gmail.com with ESMTPSA id j26sm11689814pfh.100.2019.09.15.15.17.36 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 15 Sep 2019 15:17:37 -0700 (PDT) Date: Sun, 15 Sep 2019 15:17:30 -0700 From: Jeff Tantsura To: Routing ADs , Mach Chen Cc: Routing Directorate , "=?utf-8?Q?idr=40ietf.org?=" , "=?utf-8?Q?draft-ietf-idr-bgp-ls-segment-routing-msd=40ietf.org?=" Message-ID: <823b5b17-5e56-4f92-a9c6-e5f87c2f7b51@Spark> In-Reply-To: <5b4dc57c-4d7f-451f-ad32-6b4c1a7be8f0@Spark> References: <5b4dc57c-4d7f-451f-ad32-6b4c1a7be8f0@Spark> X-Readdle-Message-ID: 823b5b17-5e56-4f92-a9c6-e5f87c2f7b51@Spark MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="5d7eb87f_275ac794_64bf" Archived-At: Subject: Re: [RTG-DIR] RtgDir review: draft-ietf-idr-bgp-ls-segment-routing-msd-05.txt X-BeenThere: rtg-dir@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Routing Area Directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 15 Sep 2019 22:17:40 -0000 --5d7eb87f_275ac794_64bf Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Hi Mach, Apologies for the second email, hit send too fast. Wrt Terminology section - I believe a period (full stop) between sentences is missing, not a new paragraph. If you are OK with my point of view, will update ASAP. Thanks! Cheers, Jeff On Sep 15, 2019, 3:12 PM -0700, Jeff Tantsura , wrote: > Hello Mach, > > Many thanks for your review. > Please note - the latest version of the document is 07. > > Please see inline > > Cheers, > Jeff > On Sep 15, 2019, 5:13 AM -0700, Mach Chen , wrote: > > Hello, > > > > I have been selected as the Routing Directorate reviewer for this draft. The Routing Directorate seeks to review all routing or routing-related drafts as they pass through IETF last call and IESG review, and sometimes on special request. The purpose of the review is to provide assistance to the Routing ADs. For more information about the Routing Directorate, please see http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir > > > > Although these comments are primarily for the use of the Routing ADs, it would be helpful if you could consider them along with any other IETF Last Call comments that you receive, and strive to resolve them through discussion or by updating the draft. > > > > Document: draft-ietf-idr-bgp-ls-segment-routing-msd-05.txt > > Reviewer: Mach Chen > > Review Date: 10 September 2019 > > Intended Status: Standards Track > > > > Summary: > > I have some minor concerns about this document that I think should be resolved before publication. > > > > > > Comments: > > > > Generally, I found the draft quite readable, with a clear explanation of the problem statements and solutions. However, I have one minor comment and a nit. > > > > Major Issues: > > > > No major issues found. > > > > > > Minor Issues: > > > > This draft is an extension to BGP-LS (RFC 7752) that is under a re-spin, I have a question whether this draft should reference to RFC 7752 or the new bis document. > [jeff] we have added clarifying text in the 07 version. please let me know if this addresses your comments. > > > > > > Nits: > > 1.1.1. Terminology > > > > Part of the last bullet should be separated into a dedicated paragraph, it looks like an copy and pastes nit. > > > > "The number of labels imposed is then the sum of the number of labels that are > > replaced and the number of labels that are pushed. See [RFC3031]" > > > > Best regards, > > Mach > > --5d7eb87f_275ac794_64bf Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline
Hi Mach,

Apologies for the second email, hit send too fast.<= /div>
Wrt Terminology section - I believe a period (full = stop) between sentences is missing, not a new paragraph.
If you are OK with my point of view, will update AS= AP.

Thanks=21

Cheers,
Jeff
On Sep 15, 2019, 3:12 PM -0700, Jef= f Tantsura <jefftant.ietf=40gmail.com>, wrote:
Hello Mach,

Many thanks for your review.
Please note - the latest version of the document is= 07.

Please see inline

Cheers,
Jeff
On Sep 15, 2019, 5:13 AM -0700, Mac= h Chen <mach.chen=40huawei.com>, wrote:
He= llo,

I have been selected as the Routing Directorate reviewer for this draft. = The Routing Directorate seeks to review all routing or routing-related dr= afts as they pass through IET=46 last call and IESG review, and sometimes= on special request. The purpose of the review is to provide assistance t= o the Routing ADs. =46or more information about the Routing Directorate, = please see http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir

Although these comments are primarily for the use of the Routing ADs, it = would be helpful if you could consider them along with any other IET=46 L= ast Call comments that you receive, and strive to resolve them through di= scussion or by updating the draft.

Document: draft-ietf-idr-bgp-ls-segment-routing-msd-05.txt
Reviewer: Mach Chen
Review Date: 10 September 2019
Intended Status: Standards Track

Summary:
I have some minor concerns about this document that I think should be res= olved before publication.


Comments:

Generally, I found the draft quite readable, with a clear explanation of = the problem statements and solutions. However, I have one minor comment a= nd a nit.

Major Issues:

No major issues found.


Minor Issues:

This draft is an extension to BGP-LS (R=46C 7752) that is under a re-spin= , I have a question whether this draft should reference to R=46C 7752 or = the new bis document.&=23160;
=5Bjeff=5D we have added clarifying text in the 07 version. please l= et me know if this addresses your comments.&=23160;

Nits:
1.1.1. Terminology

Part of the last bullet should be separated into a dedicated paragraph, i= t looks like an copy and pastes nit.

=22The number of labels imposed is then the sum of the number of labels t= hat are
replaced and the number of labels that are pushed. See =5BR=46C3031=5D=22=

Best regards,
Mach

--5d7eb87f_275ac794_64bf-- From nobody Sun Sep 15 18:36:53 2019 Return-Path: X-Original-To: rtg-dir@ietfa.amsl.com Delivered-To: rtg-dir@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 347151200A3; Sun, 15 Sep 2019 18:36:52 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 0.8 X-Spam-Level: X-Spam-Status: No, score=0.8 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, GB_SUMOF=5, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-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 ClN4830woUPv; Sun, 15 Sep 2019 18:36:50 -0700 (PDT) Received: from huawei.com (lhrrgout.huawei.com [185.176.76.210]) (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 50C3A120098; Sun, 15 Sep 2019 18:36:50 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([fe80::74d9:c659:fbec:21fa%31]) with mapi id 14.03.0439.000; Mon, 16 Sep 2019 09:36:43 +0800 From: Mach Chen To: Jeff Tantsura , Routing ADs CC: Routing Directorate , "idr@ietf.org" , "draft-ietf-idr-bgp-ls-segment-routing-msd@ietf.org" Thread-Topic: RtgDir review: draft-ietf-idr-bgp-ls-segment-routing-msd-05.txt Thread-Index: AdVjAto+gGFNjTjzT2S3OHztFyKdOgIzM+mAAAApRwAAF6ZyMA== Date: Mon, 16 Sep 2019 01:36:43 +0000 Message-ID: References: <5b4dc57c-4d7f-451f-ad32-6b4c1a7be8f0@Spark> <823b5b17-5e56-4f92-a9c6-e5f87c2f7b51@Spark> In-Reply-To: <823b5b17-5e56-4f92-a9c6-e5f87c2f7b51@Spark> Accept-Language: en-US, zh-CN Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.111.194.201] Content-Type: multipart/alternative; boundary="_000_F73A3CB31E8BE34FA1BBE3C8F0CB2AE292C6B1DAdggeml510mbxchi_" MIME-Version: 1.0 X-CFilter-Loop: Reflected Archived-At: Subject: Re: [RTG-DIR] RtgDir review: draft-ietf-idr-bgp-ls-segment-routing-msd-05.txt X-BeenThere: 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AM0PR07MB4531.eurprd07.prod.outlook.com (52.135.146.15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2284.15; Wed, 18 Sep 2019 09:01:08 +0000 Received: from AM0PR07MB6098.eurprd07.prod.outlook.com ([fe80::806:8b63:dceb:6ccf]) by AM0PR07MB6098.eurprd07.prod.outlook.com ([fe80::806:8b63:dceb:6ccf%2]) with mapi id 15.20.2284.009; Wed, 18 Sep 2019 09:01:08 +0000 From: Daniele Ceccarelli To: " (rtg-ads@ietf.org)" CC: "rtg-dir@ietf.org" , "draft-ietf-ospf-te-link-attr-reuse.all@ietf.org" , "lsr@ietf.org" Thread-Topic: RtgDir review: draft-ietf-ospf-te-link-attr-reuse-08 Thread-Index: AdVt/5sGAKOxj6NwT/GaTs7ycHNSbw== Date: Wed, 18 Sep 2019 09:01:08 +0000 Message-ID: Accept-Language: it-IT, en-US Content-Language: en-US X-MS-Has-Attach: yes X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=daniele.ceccarelli@ericsson.com; x-originating-ip: [192.176.1.84] x-ms-publictraffictype: Email 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4Nvd9mx4GVcKA+ffMkicflsymQJ1y1vJC3knK4U6GN18xI8VmpEAJGfyiMfWYHJYO0XDsH344mrGMnjCPogt4Ca4vabWhWCwlXH+Mu91m/YEf9milzo4nSQndf9hCpCiLmhIltI1a9Hvo8lyxhFxUyKNz70TJg6BlxKrFIfVYV4lUPe21kha9mZStQ4zhWMdVALLSLB6zQ71JMLe1jfnGfaIuYe6M7oudU2NCyFMdCoaRaVibGEBuN8pOfsQcPJbhL6sw77QmPV2ZGzlpBhP25fLzPRWGMcA/RmzY50O0HIxJLvIbacQ6p248NjzgKYgQftJ/qhOTyH+0V+Wf1Rpy2eUQ9+6Ljp7+wd2cDgGYz+RTHG36AamkELVMS0uaekNoLVpz75irPUFXuduv+48MTtDxk0vzDuhTXrRt1yGWzg= x-ms-exchange-transport-forked: True Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; micalg=SHA1; boundary="----=_NextPart_000_0081_01D56E10.5F1B62A0" MIME-Version: 1.0 X-OriginatorOrg: ericsson.com X-MS-Exchange-CrossTenant-Network-Message-Id: bb2c2f6b-6795-44b7-5970-08d73c16bec7 X-MS-Exchange-CrossTenant-originalarrivaltime: 18 Sep 2019 09:01:08.3647 (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: AjVxMZe6tFCTUjFbX+rpLoNln7boA7+Xcji46AttvguAhIkcohxiPXrc1CqSlHrukfhL8C77Jhk98l6rT6Gp9coyoJ7Wy9hZNsacvoLxQI0= X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR07MB4531 Archived-At: Subject: [RTG-DIR] RtgDir review: draft-ietf-ospf-te-link-attr-reuse-08 X-BeenThere: rtg-dir@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Routing Area Directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 18 Sep 2019 09:01:19 -0000 ------=_NextPart_000_0081_01D56E10.5F1B62A0 Content-Type: multipart/alternative; boundary="----=_NextPart_001_0082_01D56E10.5F1B62A0" ------=_NextPart_001_0082_01D56E10.5F1B62A0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Hello, I have been selected as the Routing Directorate reviewer for this draft. = The Routing Directorate seeks to review all routing or routing-related = drafts as they pass through IETF last call and IESG review, and = sometimes on special request. The purpose of the review is to provide = assistance to the Routing ADs. For more information about the Routing = Directorate, please see = = =E2=80=8Bhttp://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir Although these comments are primarily for the use of the Routing ADs, it = would be helpful if you could consider them along with any other IETF = Last Call comments that you receive, and strive to resolve them through = discussion or by updating the draft. Document: draft-ietf-ospf-te-link-attr-reuse-08.txt Reviewer: Daniele Ceccarelli Review Date: 2019-09-13 IETF LC End Date: date-if-known Intended Status: Standard Track Summary: I have significant concerns about this document and recommend that the = Routing ADs discuss these issues further with the authors. Comments: The drafts needs some improvement to be clear and easy to read. It is = outside the scope of the RTG-Directorate review to consider consensus on = it, but the it is not possible to ignore comments received from a WG = member of its usefulness. Implementations on ISIS segment routing and = OSPF segment routing (publicly available) prove that applications like = Flexible Algorithm, TI-LFA and R-LFA can be implemented using TE = parameters compliant with RFC3630 and RFC5305 without the need for these = extensions. That said the rest of the review will be limited only to the quality of = the document. Major Issues: * No major issue in addition to the one described in the comments. Minor Issues: * Abstract: it would be nice to have an overview of what is the purpose = of distributing the attributes (in addition to MPLS-TE and GMPLS). The = document starts with a very generic scope but then focuses on segment = routing. It could be stated at the beginning. * Section 2: what does this sentence mean?: =E2=80=9CAdditionally, there = will be additional standardization effort. Additionally, there will be = additional standardization effort. However, this could also be viewed = as an advantage as the non-TE use cases for the TE link attributes are = documented and validated by the LSR working group=E2=80=9D * It is not clear the usage of RFC2119 language (RECOMMENDED) in section = 2.1, is section 2.1 defining a new procedure? My understanding is that = section 2 is the actual solution while section 3 is the newly defined = one. Am I wrong? If so it should be made a bit more clear and I would = expect to see RFC2119 language only in section 3. * Section 3: =E2=80=9CThis situation SHOULD be logged as an = error=E2=80=9D how? Should a notification be sent? Logging an error is = not part of the protocol definition but rather an implementation issue. * Section 4: the title is misleading. It is defining how to encode the = list of attributed defined at the end of section 3 (some of them are = reused, some others are TBD), why the title of the section is Reused TE = link attributes? * Sections 5-6-7: Section 3 describes the procedure and TLV format, = section 4 the encoding of the attributes=E2=80=A6what is defined in = section 5-6-7. If I search for e.g. Maximum link bandwidth (the title of = section 5), the first occurrence is the title of section 5. Maybe = gouping sections 5-6-7 into a single one with an intro of what is = defined could improve the reading.=20 Nits: * MPLS TE is sometimes in capital letters and sometimes not. * SRTE expand on first use. =20 BR Daniele =20 =20 ------=_NextPart_001_0082_01D56E10.5F1B62A0 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable

H= ello,

I= have been selected as the Routing Directorate reviewer for this draft. = The Routing Directorate seeks to review all routing or routing-related = drafts as they pass through IETF last call and IESG review, and = sometimes on special request. The purpose of the review is to provide = assistance to the Routing ADs. For more information about the Routing = Directorate, please see <= a href=3D"http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir">=E2=80=8Bhttp://trac.tools.ietf.org/area/rtg/trac/wiki/Rtg= Dir<= o:p>

A= lthough these comments are primarily for the use of the Routing ADs, it = would be helpful if you could consider them along with any other IETF = Last Call comments that you receive, and strive to resolve them through = discussion or by updating the draft.

D= ocument: draft-ietf-ospf-te-link-attr-reuse-08.txt
Reviewer: = Daniele Ceccarelli
Review Date: 2019-09-13
IETF LC End Date: = date-if-known
Intended Status: Standard Track

S= ummary:<= br>I have significant concerns about this document and recommend that = the Routing ADs discuss these issues further with the = authors.

C= omments:<= o:p>

The drafts needs some improvement to be clear and easy = to read. It is outside the scope of the RTG-Directorate review to = consider consensus on it, but the it is not possible to ignore comments = received from a WG member of its usefulness. Implementations on ISIS = segment routing and OSPF segment routing (publicly available) prove that = applications like Flexible Algorithm, TI-LFA and R-LFA can be = implemented using TE parameters compliant with RFC3630 and RFC5305 = without the need for these extensions.=

That said the rest of the review will be limited only = to the quality of the document.

M= ajor Issues:

  • No major = issue in addition to the one described in the = comments.

M= inor Issues:<= o:p>

  • Abstract: it = would be nice to have an overview of what is the purpose of distributing = the attributes (in addition to MPLS-TE and GMPLS). The document starts = with a very generic scope but then focuses on segment routing. It could = be stated at the beginning.
  • Section 2: = what does this sentence mean?: =E2=80=9CAdditionally, there will be = additional standardization effort. Additionally,= there will be additional standardization effort.=C2=A0 However, this = could also be viewed as an advantage as the non-TE use cases for the TE = link attributes are documented and validated by the LSR working = group=E2=80=9D
  • It is not = clear the usage of RFC2119 language (RECOMMENDED) in section 2.1, is = section 2.1 defining a new procedure? My understanding is that section 2 = is the actual solution while section 3 is the newly defined one. Am I = wrong? If so it should be made a bit more clear and I would expect to = see RFC2119 language only in section 3.
  • Section 3: = =E2=80=9CThis situation SHOULD be logged as an error=E2=80=9D how? = Should a notification be sent? Logging an error is not part of the = protocol definition but rather an implementation = issue.
  • Section 4: = the title is misleading. It is defining how to encode the list of = attributed defined at the end of section 3 (some of them are reused, = some others are TBD), why the title of the section is Reused TE link = attributes?
  • Sections = 5-6-7: Section 3 describes the procedure and TLV format, section 4 the = encoding of the attributes=E2=80=A6what is defined in section 5-6-7. If = I search for e.g. Maximum link bandwidth (the title of section 5), the = first occurrence is the title of section 5. Maybe gouping sections 5-6-7 = into a single one with an intro of what is defined could improve the = reading.

N= its:<= o:p>

  • MPLS TE is = sometimes in capital letters and sometimes = not.
  • SRTE expand = on first use.

 

BR

Daniele=C2=A0 =

 

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=?us-ascii?q?YMxoIGxUaIYJtCEcQFIFaF4hjhUE+AzGOIQIkB4InAQE?= X-IronPort-AV: E=Sophos;i="5.64,521,1559520000"; d="scan'208";a="16906225" Received: from aer-iport-nat.cisco.com (HELO aer-core-2.cisco.com) ([173.38.203.22]) by aer-iport-3.cisco.com with ESMTP/TLS/DHE-RSA-SEED-SHA; 18 Sep 2019 17:39:47 +0000 Received: from [10.60.140.53] (ams-ppsenak-nitro4.cisco.com [10.60.140.53]) by aer-core-2.cisco.com (8.15.2/8.15.2) with ESMTP id x8IHdkJP004686; Wed, 18 Sep 2019 17:39:47 GMT To: Daniele Ceccarelli , " (rtg-ads@ietf.org)" Cc: "rtg-dir@ietf.org" , "draft-ietf-ospf-te-link-attr-reuse.all@ietf.org" , "lsr@ietf.org" References: From: Peter Psenak Message-ID: <3cc2c50a-6758-40e0-e767-2f03821f3a0f@cisco.com> Date: Wed, 18 Sep 2019 19:39:46 +0200 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit X-Outbound-SMTP-Client: 10.60.140.53, ams-ppsenak-nitro4.cisco.com X-Outbound-Node: aer-core-2.cisco.com Archived-At: Subject: Re: [RTG-DIR] RtgDir review: draft-ietf-ospf-te-link-attr-reuse-08 X-BeenThere: rtg-dir@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Routing Area Directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 18 Sep 2019 17:39:56 -0000 Hi Daniele, please see inline: On 18/09/2019 11:01, Daniele Ceccarelli wrote: > Hello, > > I have been selected as the Routing Directorate reviewer for this draft. > The Routing Directorate seeks to review all routing or routing-related > drafts as they pass through IETF last call and IESG review, and > sometimes on special request. The purpose of the review is to provide > assistance to the Routing ADs. For more information about the Routing > Directorate, please see ​ > http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir > > Although these comments are primarily for the use of the Routing ADs, it > would be helpful if you could consider them along with any other IETF > Last Call comments that you receive, and strive to resolve them through > discussion or by updating the draft. > > Document: draft-ietf-ospf-te-link-attr-reuse-08.txt > Reviewer: Daniele Ceccarelli > Review Date: 2019-09-13 > IETF LC End Date: date-if-known > Intended Status: Standard Track > > *Summary:* > I have significant concerns about this document and recommend that the > Routing ADs discuss these issues further with the authors. > > *Comments:* > > *The drafts needs some improvement to be clear and easy to read. It is > outside the scope of the RTG-Directorate review to consider consensus on > it, but the it is not possible to ignore comments received from a WG > member of its usefulness. Implementations on ISIS segment routing and > OSPF segment routing (publicly available) prove that applications like > Flexible Algorithm, TI-LFA and R-LFA can be implemented using TE > parameters compliant with RFC3630 and RFC5305 without the need for these > extensions.*** this has been discussed several times in the WG prior to WG acceptance and also during its lifetime as the WG document. If there was no sufficient support and a real problem to solve, the document would not have made it to its current state. > > *That said the rest of the review will be limited only to the quality of > the document.* > > *Major Issues:* > > * No major issue in addition to the one described in the comments. > > *Minor Issues:* > > * Abstract: it would be nice to have an overview of what is the > purpose of distributing the attributes (in addition to MPLS-TE and > GMPLS). The document starts with a very generic scope but then > focuses on segment routing. It could be stated at the beginning. the abstract says that link attributes can be used for other then MPLS TE and GMPLS and that this document defines how that can be done. Not sure what exactly do you want to add. Please let me know. Not sure where you got the impression that the document focuses on SR, but that was not the intent. > * Section 2: what does this sentence mean?: “Additionally, there will > be additional standardization effort.Additionally, there will be > additional standardization effort.  However, this could also be > viewed as an advantage as the non-TE use cases for the TE link > attributes are documented and validated by the LSR working group” It means that when the new link attribute is defined and it can be advertised as app specific one, the code point from OSPFv2 Extended Link TLV sub-TLVs and OSPFv3 Extended LSA Sub-TLV registries would have to be allocated so that it can be advertised in ASLA sub-TLV. > * It is not clear the usage of RFC2119 language (RECOMMENDED) in > section 2.1, is section 2.1 defining a new procedure? My > understanding is that section 2 is the actual solution while section > 3 is the newly defined one. Am I wrong? If so it should be made a > bit more clear and I would expect to see RFC2119 language only in > section 3. I'll change the wording and get rid of RECOMMENDED. > * Section 3: “This situation SHOULD be logged as an error” how? Should > a notification be sent? Logging an error is not part of the protocol > definition but rather an implementation issue. not sure I see the problem. We use this language about logging an error message in many places. > * Section 4: the title is misleading. It is defining how to encode the > list of attributed defined at the end of section 3 (some of them are > reused, some others are TBD), why the title of the section is Reused > TE link attributes? no attributes are defined at the end of section 3, these are all existing attributes. Section 4 defines the code points from the OSPFv2 Extended Link TLV Sub-TLV Registry and OSPFv3 Extended LSA Sub-TLV Registry for these. I will clean the TBDs as these now have early IANA allocations. > * Sections 5-6-7: Section 3 describes the procedure and TLV format, > section 4 the encoding of the attributes…what is defined in section > 5-6-7. If I search for e.g. Maximum link bandwidth (the title of > section 5), the first occurrence is the title of section 5. Maybe > gouping sections 5-6-7 into a single one with an intro of what is > defined could improve the reading. Attribute in sections 5,6,7 are attributes that MUST NOT be advertised in ASLA sub-TLV as they are application independent. These sections define how to advertise these attributes as application independent link attributes without causing the link to be considered as enabled for RSVP TE. > > *Nits:* > > * MPLS TE is sometimes in capital letters and sometimes not. will fix that. > * SRTE expand on first use. sure. thanks, Peter > > BR > > Daniele > From nobody Mon Sep 23 08:00:37 2019 Return-Path: X-Original-To: rtg-dir@ietfa.amsl.com Delivered-To: rtg-dir@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id C772312006D; Mon, 23 Sep 2019 08:00:34 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.501 X-Spam-Level: X-Spam-Status: No, score=-14.501 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, SPF_PASS=-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 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IEFsbCByZWZlcmVuY2VzIGFyZSBtYXJrZWQgTm9ybWF0aXZlLCBwbGVhc2UgcmUtY2hlY2sgaWYg dGhpcyBpcyBpbnRlbnRpb25hbC4NCiAgICANCiAgICBUaGFua3MhDQogICAgRGhydXYNCiAgICAN CiAgICANCiAgICANCg0K From nobody Wed Sep 25 13:15:50 2019 Return-Path: X-Original-To: rtg-dir@ietf.org Delivered-To: rtg-dir@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 76FB4120800; Wed, 25 Sep 2019 13:15:49 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: Christian Hopps via Datatracker To: Cc: idr@ietf.org, draft-ietf-idr-rfc8203bis.all@ietf.org, ietf@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.102.0 Auto-Submitted: auto-generated Precedence: bulk Reply-To: Christian Hopps Message-ID: <156944254942.28903.14864281488933479946@ietfa.amsl.com> Date: Wed, 25 Sep 2019 13:15:49 -0700 Archived-At: Subject: [RTG-DIR] Rtgdir early review of draft-ietf-idr-rfc8203bis-04 X-BeenThere: rtg-dir@ietf.org X-Mailman-Version: 2.1.29 List-Id: Routing Area Directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 25 Sep 2019 20:15:50 -0000 Reviewer: Christian Hopps Review result: Ready Hello, I have been selected to do a routing directorate “early” review of this draft. https://datatracker.ietf.org/doc/draft-ietf-idr-rfc8203bis/ The routing directorate will, on request from the working group chair, perform an “early” review of a draft before it is submitted for publication to the IESG. The early review can be performed at any time during the draft’s lifetime as a working group document. The purpose of the early review depends on the stage that the document has reached. As this document is in working group last call, my focus for the review was to determine whether the document is ready to be published. Please consider my comments along with the other working group last call comments. For more information about the Routing Directorate, please see ​http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir Document: draft-ietf-idr-rfc8203bis-04 Reviewer: Christian Hopps Review Date: 9/25/2019 Intended Status: Standards Track Summary: - No issues found. This documents is ready to proceed to the IESG. Comments: - This is a minor update (increasing the valid length fields values by 1 bit) to the functionality in RFC 8203 that seems well justified by the new Appendix B. - The field name "Error Code" changed from RFC 8203 to "Error code" which seems to be a superfluous diff. If so, I suggest reverting it if the opportunity presents itself during final editing. I don't think it warrants a new version of the document though. From nobody Mon Sep 30 10:19:16 2019 Return-Path: X-Original-To: rtg-dir@ietf.org Delivered-To: rtg-dir@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 28678120052; Mon, 30 Sep 2019 10:18:59 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: Bruno Decraene via Datatracker To: Cc: lsr@ietf.org, draft-ietf-isis-te-app.all@ietf.org, ietf@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.103.0 Auto-Submitted: auto-generated Precedence: bulk Reply-To: Bruno Decraene Message-ID: <156986393908.448.11465878971178706659@ietfa.amsl.com> Date: Mon, 30 Sep 2019 10:18:59 -0700 Archived-At: Subject: [RTG-DIR] Rtgdir last call review of draft-ietf-isis-te-app-06 X-BeenThere: rtg-dir@ietf.org X-Mailman-Version: 2.1.29 List-Id: Routing Area Directorate List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 30 Sep 2019 17:18:59 -0000 Reviewer: Bruno Decraene Review result: Has Issues Hello, I have been selected as the Routing Directorate reviewer for this draft. The Routing Directorate seeks to review all routing or routing-related drafts as they pass through IETF last call and IESG review, and sometimes on special request. The purpose of the review is to provide assistance to the Routing ADs. For more information about the Routing Directorate, please see ​http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir Although these comments are primarily for the use of the Routing ADs, it would be helpful if you could consider them along with any other IETF Last Call comments that you receive, and strive to resolve them through discussion or by updating the draft. Document: draft-ietf-isis-te-app-06 Reviewer: Bruno Decraene Review Date: 2019/09/30 IETF LC End Date: not started Intended Status: Standards Track Summary: I have significant concerns about this document and recommend that the Routing ADs discuss these issues further with the authors Comments: I found the document a bit difficult to read. May be just improving the introduction in section 4 could be enough (in addition to the use of consistent names across the draft). Major Issues: The abstract and "Requirements Discussion" sections make it clear that the goal of this document is to support the following 2 needs: "In cases where multiple applications wish to make use of these link attributes the current advertisements do not support application specific values for a given attribute nor do they support indication of which applications are using the advertised value for a given link. This draft introduces new link attribute advertisements which address both of these shortcomings." I think the document should make it clear that any application can use the existing/legacy advertisements (when there is no need for the attributes to be different depending on the applications). IOW, existing attributes are NOT restricted to RSVP-TE. This is currently not clear in the document. And some sentence could even be understood the other way around. e.g. - in the Abstract:"Existing traffic engineering related link attribute advertisements [...] are used in RSVP-TE deployments." While I think that they are also used in e.g. SR-TE deployments, LFA deployments - in the Introduction "Use of these extensions has been associated with deployments supporting Traffic Engineering over Multiprotocol Label Switching (MPLS) in the presence of Resource Reservation Protocol (RSVP) - more succinctly referred to as RSVP-TE." - "If the topologies are fully congruent this may not be an issue" (shouldn't this me :s/may not be/is not ?) (current sentence reads as FUD) - "There are existing advertisements used in support of RSVP-TE." If the problem is only editorial, this is easy to clarify. If not, has this point been fully discussed/reviewed by the WG? ---- §7.4 Deprecating legacy advertisements My understanding is that the purpose of this document is to define the new code points, NOT to deprecate the existing code points. Therefore the purpose of this section is not clear to me. Also it's not clear what you would mean by "deprecate". According to RFC 8126, "deprecated" means "use is not recommended". May be what you had in mind is removal from a given deployment/AS. That would probably belong to the "operational consideration" section. Note that as an operator, I not sure to see any benefice for such change. So again, what is the motivation & goal for this section? ============ Minor Issues: --- §4 I think the introductory text could be improved to better set the overall context and help the reader get the picture before jumping into the encoding. e.g.: - Adding one sentence for each code point to introduce its usage/content - Adding the sections numbers/reference where they are defined - Describing the 3 items in the same order than the table of content. Indeed, current text stats with the Application Specific Link attribute Advertisements while the sections starts with the bit mask (which itself is introduced last in the introduction). One simple option would be to change the order of the sections. ---- §4 "an application bit mask is defined" Consistently using the same name would help the reader (especially since there are 2 bits masks (SABM & UDABM) and "one Application Identifier Bit Mask". In the next section, it's called "Application Identifier Bit Mask" --- §4.1 OLD: One bit mask is for standard applications NEW: One bit mask is for Standard Applications (SA) (first definition of this acronym) ---- OLD: "SABML+F" "UDABML+F" I'm not sure about the value of defining yet another acronym which is quite long and never reused. I would propose NEW: SABM Length + Flag UDABM Length + Flag --- "L-flag: Applications listed (both Standard and User Defined) MUST use the legacy advertisements for the corresponding link found in TLVs 22, 23, 141, 222, and 223 or TLV 138 or TLV 139 as appropriate." Behavior is not crystal clear to me. Please define the behavior when the L-flag is set and when the L-flag is cleared. I would assume that currently/by default, application use the existing/"future legacy" advertisements. Given that by default applications flag are defined to the zero, that would probably call that when the application flag is cleared, the application MUST use the legacy advertisements; no? Also "Applications listed" is not well defined. I would assume that this means "the application whose Flag is set". If so, please say so. --- "Reserved. Transmitted as 0 and ignored on receipt" Using normative key worlds (SHOULD/MUST) would make the behavior more normative. ---- "F-bit: Loop Free Alternate" What do you mean precisely by "Loop Free Alternate"? To me, LFA refers to RFC 5286. But presumably you also mean RLFA, TI-LFA... ---- " NOTE: If both SA-length and UDA-Length are zero, then the attributes associated with this attribute identifier bit mask MAY be used by any Standard Application and any User Defined Application." At this point in the draft, I find this note extremely unclear. I would assume :s/attribute identifier bit mask/Application Identifier Bit Mask But it's not clear what you mean by "attributes associated" I would assume that this text could be removed. I much better like the subsequent sentence "Bits that are NOT transmitted MUST be treated as if they are set to 0 on receipt." --- "User Defined Application Bit Mask" What is meant exactly by "user"? Is this the user of the Autonomous System or the user of all possible reader of this bit masks? In other world, if a PCE /central controller, collect such "User Defined Application Bit Mask" from multiple Autonomous Systemes, should it assume that the bits are comparable or not comparable? Both options works for me, but I think a choice and explicit statement would improve interop on the PCE/controller side. --- §4.1 OLD: (UDA Length * 8) NEW: (UDA-Length * 8) ---- §4.2 "Application Bit Mask (as defined in Section 3.1)" :s/Application Bit Mask/Application Identifier Bit Mask :s/3.1/4.1 ---- §4.2 OLD: When the L-flag is set in the Application Identifiers NEW: When the L-flag is set in the Application Identifier Bit Mask --- §4.2 "When the L-flag is set in the Application Identifiers, all of the applications specified in the bit mask MUST use the link attribute sub-TLV advertisements listed in Section 3.1 for the corresponding link." I find this specification is much clearer than the one in §4.1 when the L-flag is defined. I would not specify this behavior twice (both in §4..1 & 4.2) "applications specified in the bit mask" is still unclear. Do you mean application with the flag set or cleared? --- §4.2 "Application specific link attribute sub-sub-TLVs " naming is not consistent with "Link Attribute sub-sub-TLVs" used a few lines before. (and other with the title "Application Specific Link Attributes" ---- §4.2 OLD: Multiple sub-TLVs for the same link MAY be advertised. NEW: Multiple Application Specific Link Attributes sub-TLV MAY be advertised for the same link. --- §4.2.1 "Maximum link bandwidth is an application independent attribute of the link." Well, RFC5305 defines it as "This sub-TLV contains the maximum bandwidth that can be used on this link in this direction (from the system originating the LSP to its neighbors). This is useful for traffic engineering." https://tools.ietf.org/html/rfc5305#section-3.4 Based on this definition, it's not clear to me why the maximum link bandwidth used by SR-TE could not be (chosen to be) different than the maximum link bandwidth used by RSVP-TE. IOW, this is the maximum link bandwidth that can be used by this application. --- §4.3 OLD: Application Bit Mask (as defined in Section 3.1) NEW: Application Identifier Bit Mask (as defined in Section 4.1) --- §4.3 "The type values are suggested and will be assigned by IANA" Since this document creates a new registry, it can chose the code points at his own will. "but as the formats are identical to existing sub-TLVs defined for TLVs 22, 23, 141, 222, and 223 the use of the suggested sub-TLV types is strongly encouraged." Is this rule also to the followed for future allocations? If so, if should probably be indicated, in particulair in the IANA section. --- §4.3 " At least one set of link identifiers (IPv4, IPv6, or unnumbered) MUST be present. TLVs which do not meet this requirement MUST be ignored." What if the IETF latter defines IPv8 and IPv8 only networks are deployed? May be simply OLD: (IPv4, IPv6, or unnumbered) NEW: (e.g., IPv4, IPv6, or unnumbered) --- §5 Deployment consideration "If link attributes are advertised associated with zero length application bit masks for both standard applications and user defined applications, then that set of link attributes MAY be used by any application." - It's not clear if you mean legacy attributes or Link Attribute sub-sub-TLVs or both. - This Deployment consideration section is not the place to define a new behavior. - Also section 4.1 specifically defines that "Bits that are NOT transmitted MUST be treated as if they are set to 0 on receipt.". So it's not clear if you define a new behavior. (Also "MAY be used by any application" seems to open different behavior depending on the implementations") --- §6 "In the case of RSVP-TE, the advertisement of application specific link attributes implies that RSVP is enabled on that link." presumably adding "with the R-bit set" Also, if you want this new sub-TLV to be used in replacement of the legacy advertisements, you probably also need to define the negative. e.g. "The non-adverstisement of both the legacy advertisements and application specific link attributes with the R-bit set, implies that RSVP-TE is not enabled in that link". --- §6 "In the case of Flex-Algo, advertisement of application specific link attributes does NOT indicate enablement of Flex-Algo. Rather the attributes are used to determine what links are included/excluded in the algorithm specific constrained SPF. This is fully specified in [I-D.ietf-lsr-flex-algo]." The second and third sentences are very close to requiring [I-D.ietf-lsr-flex-algo] to be a normative reference. --- §4.2 "IANA is requested to assign the legacy sub-TLV identifer to the corresponding sub-sub-TLV." Is this rule also to the followed for future allocations? If so, if should probably be indicated, in particular in the IANA section. --- §6 "In the presence of an application where the advertisement of link attribute advertisements is used to infer the enablement of an application on that link (e.g., RSVP-TE), the absence of the application identifier leaves ambiguous whether that application is enabled on such a link. This needs to be considered when making use of the "any application" encoding." On my side, this rings the bell that there is an issue with this specification. I have others comments related to the meaning of the applications flags set and cleared. I'll see when those points gets clarified. --- §8 IANA " This document defines a new sub-TLV for TLVs 22, 23, 141, 222, and 223. Type Description 22 23 25 141 222 223 ---- --------------------- ---- ---- ---- ---- ---- ---- 16 Application Specific y y y(s) y y y Link Attributes " Sentence does not list TLV 25 while description refers to TLV 25. Assuming TLV 25 is in scope, the same sentence needs to be updated in sections 4 and 4.2. I'm not sure what "y(s)" means (compared to "y" ) Stricto census, the name of the IANA registry is "Sub-TLVs for TLVs 22, 23, 25, 141, 222, and 223 (Extended IS reachability, IS Neighbor Attribute, L2 Bundle Member Attributes, inter-AS reachability information, MT-ISN, and MT IS Neighbor Attribute TLVs)" ============ Nits: OLD: A sub-sub-TLV is defined for each of the existing sub-TLVs NEW: This document defines a sub-sub-TLV for each of the existing sub-TLVs