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2017 23:35:21 -0400 From: "Acee Lindem (acee)" To: "Ketan Talaulikar (ketant)" , OSPF WG List Thread-Topic: [OSPF] FW: I-D Action: draft-ietf-ospf-ospfv2-hbit-03.txt Thread-Index: AQHTB0gnm5J0uuB2IU61XNm1+z588KJzlrwA Date: Fri, 4 Aug 2017 03:35:21 +0000 Message-ID: References: <149745868176.14092.12545952816774640731@ietfa.amsl.com> <5c80301ca8ac47a2ad09500b6e111a5a@XCH-ALN-008.cisco.com> In-Reply-To: <5c80301ca8ac47a2ad09500b6e111a5a@XCH-ALN-008.cisco.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.24.49.163] Content-Type: text/plain; charset="utf-8" Content-ID: <6924240DAE3F914884867BE8B50E3D66@emea.cisco.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Subject: Re: [OSPF] FW: I-D Action: draft-ietf-ospf-ospfv2-hbit-03.txt X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: The 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by9vc3BmDQoNCg== From nobody Fri Aug 4 15:00:57 2017 Return-Path: X-Original-To: ospf@ietf.org Delivered-To: ospf@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 358E912714F; Fri, 4 Aug 2017 15:00:49 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: IETF Secretariat To: Cc: ospf@ietf.org, ipr-announce@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.58.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <150188404921.18598.6683600020414023215@ietfa.amsl.com> Date: Fri, 04 Aug 2017 15:00:49 -0700 Archived-At: Subject: [OSPF] IPR Disclosure Huawei Technologies Co., Ltd's Statement about IPR related to RFC 8099 X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 04 Aug 2017 22:00:49 -0000 Dear Huaimo Chen, Renwei Li, Alvaro Retana, Yi Yang, Vic Liu: An IPR disclosure that pertains to your RFC entitled "OSPF Topology-Transparent Zone" (RFC8099) was submitted to the IETF Secretariat on and has been posted on the "IETF Page of Intellectual Property Rights Disclosures" (https://datatracker.ietf.org/ipr/3046/). The title of the IPR disclosure is "Huawei Technologies Co.,Ltd's Statement about IPR related to RFC 8099" Thank you IETF Secretariat From nobody Fri Aug 4 15:30:28 2017 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 6CD951204DA; Fri, 4 Aug 2017 15:30:27 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.52 X-Spam-Level: X-Spam-Status: No, score=-14.52 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, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, 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 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 NzZoQQ8uVHgZ; 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d="scan'208";a="278848453" Received: from rcdn-core-11.cisco.com ([173.37.93.147]) by rcdn-iport-6.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 04 Aug 2017 22:30:24 +0000 Received: from XCH-RTP-012.cisco.com (xch-rtp-012.cisco.com [64.101.220.152]) by rcdn-core-11.cisco.com (8.14.5/8.14.5) with ESMTP id v74MUNUj002388 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Fri, 4 Aug 2017 22:30:23 GMT Received: from xch-rtp-015.cisco.com (64.101.220.155) by XCH-RTP-012.cisco.com (64.101.220.152) with Microsoft SMTP Server (TLS) id 15.0.1210.3; Fri, 4 Aug 2017 18:30:22 -0400 Received: from xch-rtp-015.cisco.com ([64.101.220.155]) by XCH-RTP-015.cisco.com ([64.101.220.155]) with mapi id 15.00.1210.000; Fri, 4 Aug 2017 18:30:22 -0400 From: "Acee Lindem (acee)" To: IETF Secretariat , "draft-ietf-ospf-ttz@ietf.org" CC: "ospf@ietf.org" Thread-Topic: [OSPF] IPR Disclosure Huawei Technologies Co., Ltd's Statement about IPR related to RFC 8099 Thread-Index: AQHTDW0ptYwDlSuHZUGlIG5abXLraqJ0x5iA Date: Fri, 4 Aug 2017 22:30:22 +0000 Message-ID: References: <150188404921.18598.6683600020414023215@ietfa.amsl.com> In-Reply-To: <150188404921.18598.6683600020414023215@ietfa.amsl.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.116.152.199] Content-Type: text/plain; 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Fri, 11 Aug 2017 19:09:54 -0700 (PDT) MIME-Version: 1.0 Received: by 10.223.154.108 with HTTP; Fri, 11 Aug 2017 19:09:54 -0700 (PDT) From: Alia Atlas Date: Fri, 11 Aug 2017 22:09:54 -0400 Message-ID: To: OSPF List , draft-ietf-ospf-segment-routing-extensions@ietf.org Content-Type: multipart/alternative; boundary="001a114916c8f3484c055684ecf4" Archived-At: Subject: [OSPF] AD review of draft-ietf-ospf-segment-routing-extensions-18 X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 12 Aug 2017 02:09:59 -0000 --001a114916c8f3484c055684ecf4 Content-Type: text/plain; charset="UTF-8" As is customary, I have done another AD review of draft-ietf-ospf-segment-routing-extensions-18. I do appreciate the improvements in the draft. I do still see a few minor issues. I would like to see a revised draft before IETF Last Call. I expect to progress this at an IESG telechat with the primary spring documents, when Alvaro feels they are ready. 1) In Sec 3.1, "If the SR-Algorithm TLV appears in multiple Router Information LSAs that have different flooding scopes, the SR- Algorithm TLV in the Router Information LSA with the narrowest flooding scope SHOULD be used. " Given that the area-scope is REQUIRED - shouldn't this also prefer the area-scope? Is there future-proofing being done? 2) In Sec 3.4: "For the purpose of the SRMS Preference TLV advertisement, AS-scoped flooding is REQUIRED. This is because SRMS servers can be located in a different area then consumers of the SRMS advertisements. If the SRMS advertisements from the SRMS server are only used inside the SRMS server's area, area-scoped flooding may be used." REQUIRED is like MUST - I think you mean "AS-scoped flooded SHOULD be used.... area-scoped flooding MAY be used." 3) In Sec 4. "The Segment Routing Mapping Server, which is described in [I-D.ietf-spring-segment-routing-ldp-interop], is an example where we need a single advertisement to advertise SIDs for multiple prefixes from a contiguous address range." I've read through the vastly improved section (thank you) in draft-ietf-spring-segment-routing-ldp-interop-08 and I don't see any explanation for why a contiguous address range is needed. I can speculate that a primary purpose is to advertise SIDs for the loopback addresses of routers that don't support SR - and those loopback addresses are likely to be allocated from a contiguous range (though why some wouldn't be supporting SR and cause gaps isn't clear). 4) Sec 5: In the end of Sec 4.2 in draft-ietf-spring-segment-routing-ldp-interop-08, it says "Note: SR mappings advertisements cannot set Penultimate Hop Popping. In the previous example, P6 requires the presence of the segment 103 such as to map it to the LDP label 1037. For that reason, the P flag available in the Prefix-SID is not available in the Remote-Binding SID." However, in this draft Sec 5 gives the following rules: "As the Mapping Server does not specify the originator of a prefix advertisement, it is not possible to determine PHP behavior solely based on the Mapping Server advertisement. However, PHP behavior SHOULD be done in following cases: The Prefix is intra-area type and the downstream neighbor is the originator of the prefix. The Prefix is inter-area type and downstream neighbor is an ABR, which is advertising prefix reachability and is also generating the Extended Prefix TLV with the A-flag set for this prefix as described in section 2.1 of [RFC7684]. The Prefix is external type and downstream neighbor is an ASBR, which is advertising prefix reachability and is also generating the Extended Prefix TLV with the A-flag set for this prefix as described in section 2.1 of [RFC7684]. These seem to be contradictory. 5) In Sec 7.1, it says "Multiple Mapping Servers can advertise Prefix-SIDs for the same prefix, in which case the same Prefix-SID MUST be advertised by all of them." What is forcing this constraint? Does it work if the Prefix-SID is an index into an SRGB or SRLB that is not the same value globally? I don't see it specified in Sec 7.2 of draft-ietf-spring-segment-routing-ldp-interop-08? Regards, Alia --001a114916c8f3484c055684ecf4 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
As is customary, I have done another AD review of=C2= =A0draft-ietf-ospf-segment-routing-extensions-18. I do appreciate the impro= vements in the draft.

I do still see a few minor i= ssues.=C2=A0 I would like to see a revised draft before IETF Last Call. I e= xpect to progress this at an IESG telechat with the primary spring document= s, when Alvaro feels they are ready.


1) In Sec 3.1,=C2=A0"If the SR-Algorithm TLV appears in multiple Rou= ter
=C2=A0 =C2=A0Information LSAs that have different flooding scopes, t= he SR-
=C2=A0 =C2=A0Algorithm TLV in the Router Information LSA with the= narrowest
=C2=A0 =C2=A0flooding scope SHOULD be used. =C2=A0"=C2= =A0
=C2=A0 =C2=A0Given that the area-scope is REQUIRED - shouldn&= #39;t this also prefer
=C2=A0 =C2=A0the area-scope?=C2=A0 Is ther= e future-proofing being done?

2) In Sec 3.4:=C2=A0= "For the purpose of the SRMS=C2=A0Preference TLV advertisement, AS-sco= ped flooding is REQUIRED.=C2=A0 This
=C2=A0 =C2=A0is because SRMS server= s can be located in a different area then
=C2=A0 =C2=A0consumers of the = SRMS advertisements.=C2=A0 If the SRMS advertisements
=C2=A0 =C2=A0from = the SRMS server are only used inside the SRMS server's area,
=C2=A0 = =C2=A0area-scoped flooding may be used."

= REQUIRED is like MUST - I think you mean "AS-scoped flooded SHOULD be = used.... area-scoped flooding MAY be used."=C2=A0

=
3) In Sec 4.=C2=A0"The Segment Routing Mapping Server, which is d= escribed in
=C2=A0 =C2=A0[I-D.ietf-spring-segment-routing-ldp-interop], = is an example where we
=C2=A0 =C2=A0need a single advertisement to adver= tise SIDs for multiple prefixes
=C2=A0 =C2=A0from a contiguous address r= ange."

I've read through the vastly impro= ved section (thank you) in=C2=A0draft-ietf-spring-segment-routing-ldp-inter= op-08 and I don't see any explanation for why a contiguous address rang= e is needed.

I can speculate that a primary purpos= e is to advertise SIDs for the loopback addresses of routers that don't= support SR - and those loopback addresses are likely to be allocated from = a contiguous range (though why some wouldn't be supporting SR and cause= gaps isn't clear).

4) Sec 5: In the end of Se= c 4.2 in draft-ietf-spring-segment-routing-ldp-interop-08, it says=C2=A0&qu= ot;Note: SR mappings advertisements cannot set Penultimate Hop Popping.
= =C2=A0 =C2=A0In the previous example, P6 requires the presence of the segme= nt 103
=C2=A0 =C2=A0such as to map it to the LDP label 1037.=C2=A0 For t= hat reason, the P flag
=C2=A0 =C2=A0available in the Prefix-SID is not a= vailable in the Remote-Binding
=C2=A0 =C2=A0SID."
However= , in this draft Sec 5 gives the following rules:=C2=A0

=
"As the Mapping Server does not specify the originator of a prefi= x advertisement, it is not possible to determine PHP behavior solely based = on the Mapping Server advertisement. However, PHP behavior SHOULD be done i= n following cases: The Prefix is intra-area type and the downstream neighbo= r is the originator of the prefix. The Prefix is inter-area type and downst= ream neighbor is an ABR, which is advertising prefix reachability and is al= so generating the Extended Prefix TLV with the A-flag set for this prefix a= s described in section 2.1 of [RFC7684]. The Prefix is external type and do= wnstream neighbor is an ASBR, which is advertising prefix reachability and = is also generating the Extended Prefix TLV with the A-flag set for this pre= fix as described in section 2.1 of [RFC7684].

Thes= e seem to be contradictory.

5) In Sec 7.1, it says= =C2=A0"Multiple Mapping Servers can advertise
=C2=A0 =C2=A0Prefix-S= IDs for the same prefix, in which case the same Prefix-SID
=C2=A0 =C2=A0= MUST be advertised by all of them."

What = is forcing this constraint?=C2=A0 Does it work if the Prefix-SID is an inde= x into an
SRGB or SRLB that is not the same value globally? I don= 't see it specified in Sec 7.2 of draft-ietf-spring-segment-routing-ldp= -interop-08?

Regards,
Alia
--001a114916c8f3484c055684ecf4-- From nobody Fri Aug 11 19:42:34 2017 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id C1AA0131D2C; Fri, 11 Aug 2017 19:42:32 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.999 X-Spam-Level: X-Spam-Status: No, score=-1.999 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, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001] autolearn=ham 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 3LtQOPT07qKC; Fri, 11 Aug 2017 19:42:31 -0700 (PDT) Received: from mail-wr0-x22e.google.com (mail-wr0-x22e.google.com [IPv6:2a00:1450:400c:c0c::22e]) (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 83F9E1241FC; Fri, 11 Aug 2017 19:42:27 -0700 (PDT) Received: by mail-wr0-x22e.google.com with SMTP id 26so2988651wrt.5; Fri, 11 Aug 2017 19:42:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=LA6H8gYsHoWk5DtsA3/7WS6wYUky1u3XxmGiNz7Ngrs=; b=jNcmYpW50gj/9CYTzBeK9hhAduRo3XgQJZhRGLr8dgBBclV7NvFcgKtbEsWUVgANa5 x7Ja9CbVYxvye+qB33mY6OsyNRe+RQi/ivutf6aer/E3gsLWQYfOlDjsDLhX3qsXSmhi wISw2Bt2uIaQ3qA2Fj3SpU/vT1/RR/bTQQcuxiWfoE4JSelVgmETOdzQ0aIIDSm9wRsO IihZpxuVVftPBHqArc2DVN4ZVzsuXiE8nPqF62/lddtq57NzPFk5FXOL43bOZLyMFMSk 4Fgn2v6koVBMzvcy3lvpFNPLZhCEFQ6rOwJrBhnp/2x81C0f3XzN3RKTYer2ikZ/7CtT Nprg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=LA6H8gYsHoWk5DtsA3/7WS6wYUky1u3XxmGiNz7Ngrs=; b=GKpPPHykSJkhhsuRq1sBOQfqYOnk0FDaVqSXrH461Ii3U25G+bRjCH/z51fdPAP7mJ Q2zjnWYYzC67ERyaEAuHBIarJQROujGJfiDU2Hpjl2qB7/oLBk2d6/ELtH0tyammTnOh i907JSNt+ArkTP1vYWjCWfg2Jb7DxQViUjqPwoUE1GK7tgVUjQC4ryGXaEryLoYjX3qh rj2IEax6S2up56ShwpqirE/Nn+JJWO/Qm+cITiflKeivB8blxbtrCJ3AQAcsGRNwjkz0 R1k642ISS4xtHiEoWdF5dVV0DWSlavfdmKdDXBAZa6pJnYsJQP5Wzrz+K5HQe51rLKqA u6wg== X-Gm-Message-State: AHYfb5goNqhJ/9kkTKZv6TfGPeRPdAxMNsrHvpEep1BfOtInTRSpuVky rKjGOePuAb+5zws4n+g0xpTW8S31pxpCP3o= X-Received: by 10.223.128.163 with SMTP id 32mr11161000wrl.99.1502505745813; Fri, 11 Aug 2017 19:42:25 -0700 (PDT) MIME-Version: 1.0 Received: by 10.223.154.108 with HTTP; Fri, 11 Aug 2017 19:42:25 -0700 (PDT) From: Alia Atlas Date: Fri, 11 Aug 2017 22:42:25 -0400 Message-ID: To: draft-ietf-ospf-encapsulation-cap@ietf.org, OSPF List Content-Type: multipart/alternative; boundary="94eb2c069d564094e305568561de" Archived-At: Subject: [OSPF] AD review of draft-ietf-ospf-encapsulation-cap-06 X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 12 Aug 2017 02:42:33 -0000 --94eb2c069d564094e305568561de Content-Type: text/plain; charset="UTF-8" As is customary, I have done another AD review of draft-ietf-ospf-encapsulation-cap-06. First, I'd like to thank the authors for their work and the improvement. I have one minor issue on the IANA section. For the current FCFS space, I think it would be better to have "Specification Required" so that there's a place to look to understand what sub-TLVs are included. If the WG is happy with FCFS, that is fine too. I'm asking for an IETF Last Call and will put this on the telechat on Aug 31. Regards, Alia --94eb2c069d564094e305568561de Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
As is customary, I have done another AD review of=C2=A0dra= ft-ietf-ospf-encapsulation-cap-06.=C2=A0 First, I'd like to thank the a= uthors for their work and the improvement.

I have one mi= nor issue on the IANA section.

For the current FCF= S space, I think it would be better to have "Specification Required&qu= ot; so that there's a place to look to understand what sub-TLVs are inc= luded.
If the WG is happy with FCFS, that is fine too.
=
I'm asking for an IETF Last Call and will put this on th= e telechat on Aug 31.

Regards,
Alia
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XCH-RTP-015.cisco.com ([64.101.220.155]) with mapi id 15.00.1210.000; Sun, 13 Aug 2017 19:57:40 -0400 From: "Acee Lindem (acee)" To: Alia Atlas , OSPF List , "draft-ietf-ospf-segment-routing-extensions@ietf.org" Thread-Topic: [OSPF] AD review of draft-ietf-ospf-segment-routing-extensions-18 Thread-Index: AQHTExAgVtYHriLCM06HnXNcslAzRaKC+bmA Date: Sun, 13 Aug 2017 23:57:40 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.116.152.201] Content-Type: multipart/alternative; boundary="_000_D5B65E4AC08CBaceeciscocom_" MIME-Version: 1.0 Archived-At: Subject: Re: [OSPF] AD review of draft-ietf-ospf-segment-routing-extensions-18 X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: 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Delivered-To: ospf@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id F2695131D19; Mon, 14 Aug 2017 00:25:24 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: ospf@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.58.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <150269552495.360.3823256467110749227@ietfa.amsl.com> Date: Mon, 14 Aug 2017 00:25:24 -0700 Archived-At: Subject: [OSPF] I-D Action: draft-ietf-ospf-link-overload-09.txt X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 14 Aug 2017 07:25:25 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Open Shortest Path First IGP WG of the IETF. Title : OSPF Link Overload Authors : Shraddha Hegde Pushpasis Sarkar Hannes Gredler Mohan Nanduri Luay Jalil Filename : draft-ietf-ospf-link-overload-09.txt Pages : 14 Date : 2017-08-14 Abstract: When a link is being prepared to be taken out of service, the traffic needs to be diverted from both ends of the link. Increasing the metric to the highest metric on one side of the link is not sufficient to divert the traffic flowing in the other direction. It is useful for routers in an OSPFv2 or OSPFv3 routing domain to be able to advertise a link being in an overload state to indicate impending maintenance activity on the link. This information can be used by the network devices to re-route the traffic effectively. This document describes the protocol extensions to disseminate link- overload information in OSPFv2 and OSPFv3. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-ospf-link-overload/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-ospf-link-overload-09 https://datatracker.ietf.org/doc/html/draft-ietf-ospf-link-overload-09 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-ospf-link-overload-09 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Mon Aug 14 08:29:17 2017 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id C0B21132386; Mon, 14 Aug 2017 08:29:15 -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 key) header.d=cisco.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 2u2dvO9wpEGW; Mon, 14 Aug 2017 08:29:13 -0700 (PDT) Received: from aer-iport-2.cisco.com (aer-iport-2.cisco.com [173.38.203.52]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 330BE132376; Mon, 14 Aug 2017 08:29:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=5484; q=dns/txt; s=iport; t=1502724553; x=1503934153; h=message-id:date:from:mime-version:to:subject:references: in-reply-to:content-transfer-encoding; bh=MfXl6UHsPCooDXFwGCwM21E+nCMDlZNukNAoPuEHImM=; b=Eff2XqXwFrH+k9jpMeIm4foglWBG6bY4zbe/8YKgLcS81w/RrCP6Rnx5 sC5/pY055hE9SQiIf+DQhXTiDGewe7oqJVa2cK0W2hZIUvVkiw28AvXgJ x75rM6QHP4vGqYgfBqa+sCIm6PdTj5KJ+roypTBQczE+/icW51IUGbx7D Y=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: =?us-ascii?q?A0CMAACfwJFZ/xbLJq1dGQEBAQEBAQEBA?= =?us-ascii?q?QEBBwEBAQEBk2NzkQqWGIIShUcChTgYAQIBAQEBAQEBayiFGAEBAQECASMVQAY?= =?us-ascii?q?LCw4EBgICBRYLAgIJAwIBAgE3DgYBDAgBAYojCKx3ghQSi2ABAQEBAQEBAQEBA?= =?us-ascii?q?QEBAQEBIoELgh2DToFjgyeETBGDKYJhAQSYDYgklDyCD4Vdg1cjhm+WFR84gQo?= =?us-ascii?q?yIQgcFYVgHIFpPohCgkEBAQE?= X-IronPort-AV: E=Sophos;i="5.41,373,1498521600"; d="scan'208";a="653929217" Received: from aer-iport-nat.cisco.com (HELO aer-core-2.cisco.com) ([173.38.203.22]) by aer-iport-2.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 14 Aug 2017 15:29:10 +0000 Received: from [10.147.24.15] ([10.147.24.15]) by aer-core-2.cisco.com (8.14.5/8.14.5) with ESMTP id v7EFTAcs014936; Mon, 14 Aug 2017 15:29:10 GMT Message-ID: <5991C1C5.9060000@cisco.com> Date: Mon, 14 Aug 2017 17:29:09 +0200 From: Peter Psenak User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:24.0) Gecko/20100101 Thunderbird/24.4.0 MIME-Version: 1.0 To: Alia Atlas , OSPF List , draft-ietf-ospf-segment-routing-extensions@ietf.org References: In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Archived-At: Subject: Re: [OSPF] AD review of draft-ietf-ospf-segment-routing-extensions-18 X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 14 Aug 2017 15:29:16 -0000 Hi Alia, thanks for comments, please see inline: On 12/08/17 04:09 , Alia Atlas wrote: > As is customary, I have done another AD review > of draft-ietf-ospf-segment-routing-extensions-18. I do appreciate the > improvements in the draft. > > I do still see a few minor issues. I would like to see a revised draft > before IETF Last Call. I expect to progress this at an IESG telechat > with the primary spring documents, when Alvaro feels they are ready. > > > 1) In Sec 3.1, "If the SR-Algorithm TLV appears in multiple Router > Information LSAs that have different flooding scopes, the SR- > Algorithm TLV in the Router Information LSA with the narrowest > flooding scope SHOULD be used. " > Given that the area-scope is REQUIRED - shouldn't this also prefer > the area-scope? Is there future-proofing being done? link-local scope here does not really make much sense, so the assumption was that it's either area or AS-scope, in which case area-scope has narrower flooding scope. I'll clarify that in the text. > > 2) In Sec 3.4: "For the purpose of the SRMS Preference TLV > advertisement, AS-scoped flooding is REQUIRED. This > is because SRMS servers can be located in a different area then > consumers of the SRMS advertisements. If the SRMS advertisements > from the SRMS server are only used inside the SRMS server's area, > area-scoped flooding may be used." > > REQUIRED is like MUST - I think you mean "AS-scoped flooded SHOULD be > used.... area-scoped flooding MAY be used." will change to SHOULD. > > 3) In Sec 4. "The Segment Routing Mapping Server, which is described in > [I-D.ietf-spring-segment-routing-ldp-interop], is an example where we > need a single advertisement to advertise SIDs for multiple prefixes > from a contiguous address range." > > I've read through the vastly improved section (thank you) > in draft-ietf-spring-segment-routing-ldp-interop-08 and I don't see any > explanation for why a contiguous address range is needed. > > I can speculate that a primary purpose is to advertise SIDs for the > loopback addresses of routers that don't support SR - and those loopback > addresses are likely to be allocated from a contiguous range (though why > some wouldn't be supporting SR and cause gaps isn't clear). range is an optimization similar to summarization. Instead of advertising each individual prefix to SID mappings, we can advertise single range with the starting SID. I referenced the I-D.ietf-spring-segment-routing-ldp-interop, because SRMS is an example where the range advertisements is clearly useful, although it's not limited to to that case. One can use SRMS as a SID provisioning tool. > > 4) Sec 5: In the end of Sec 4.2 in > draft-ietf-spring-segment-routing-ldp-interop-08, it says "Note: SR > mappings advertisements cannot set Penultimate Hop Popping. > In the previous example, P6 requires the presence of the segment 103 > such as to map it to the LDP label 1037. For that reason, the P flag > available in the Prefix-SID is not available in the Remote-Binding > SID." > However, in this draft Sec 5 gives the following rules: > > "As the Mapping Server does not specify the originator of a prefix > advertisement, it is not possible to determine PHP behavior solely based > on the Mapping Server advertisement. However, PHP behavior SHOULD be > done in following cases: The Prefix is intra-area type and the > downstream neighbor is the originator of the prefix. The Prefix is > inter-area type and downstream neighbor is an ABR, which is advertising > prefix reachability and is also generating the Extended Prefix TLV with > the A-flag set for this prefix as described in section 2.1 of [RFC7684]. > The Prefix is external type and downstream neighbor is an ASBR, which is > advertising prefix reachability and is also generating the Extended > Prefix TLV with the A-flag set for this prefix as described in section > 2.1 of [RFC7684]. > > These seem to be contradictory. The text in draft-ietf-spring-segment-routing-ldp-interop-08 refers to the fact that SRMS advertisements itself can not include PHP signaling in the advertisement itself, like the regular SID advertisement does, because SRMS is not the "owner" of the prefix. The text in the draft-ietf-ospf-segment-routing-extensions-18 describes how the PHP can still be done for SIDs that come from the SRMS adverisements, using additional information available to the protocol - e.g. prefix owner. I don't believe these contradict each other. > > 5) In Sec 7.1, it says "Multiple Mapping Servers can advertise > Prefix-SIDs for the same prefix, in which case the same Prefix-SID > MUST be advertised by all of them." > > What is forcing this constraint? Does it work if the Prefix-SID is an > index into an > SRGB or SRLB that is not the same value globally? yes, it does. The SID value for the single prefix MUST be unique though, otherwise we get into the conflict resolution area, that is covered by the draft-ietf-spring-conflict-resolution. > I don't see it > specified in Sec 7.2 of draft-ietf-spring-segment-routing-ldp-interop-08? SR architecture assumes unique mapping of a SID to a prefix. If that is not followed, draft-ietf-spring-conflict-resolution comes into picture. thanks, Peter > > Regards, > Alia From nobody Mon Aug 14 09:15:53 2017 Return-Path: X-Original-To: ospf@ietf.org Delivered-To: ospf@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 227E7126DD9; Mon, 14 Aug 2017 09:15:46 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: The IESG To: "IETF-Announce" X-Test-IDTracker: no X-IETF-IDTracker: 6.58.0 Auto-Submitted: auto-generated Precedence: bulk CC: draft-ietf-ospf-encapsulation-cap@ietf.org, ospf@ietf.org, Acee Lindem , akatlas@gmail.com, acee@cisco.com, ospf-chairs@ietf.org Reply-To: ietf@ietf.org Sender: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-ID: <150272734613.436.11128038975094014804.idtracker@ietfa.amsl.com> Date: Mon, 14 Aug 2017 09:15:46 -0700 Archived-At: Subject: [OSPF] Last Call: (Advertising Tunneling Capability in OSPF) to Proposed Standard X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 14 Aug 2017 16:15:46 -0000 The IESG has received a request from the Open Shortest Path First IGP WG (ospf) to consider the following document: - 'Advertising Tunneling Capability in OSPF' as Proposed Standard The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the ietf@ietf.org mailing lists by 2017-08-28. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract Networks use tunnels for a variety of reasons. A large variety of tunnel types are defined and the ingress needs to select a type of tunnel which is supported by the egress and itself. This document defines how to advertise egress tunnel capabilities in OSPF Router Information Link State Advertisement (LSAs). The file can be obtained via https://datatracker.ietf.org/doc/draft-ietf-ospf-encapsulation-cap/ IESG discussion can be tracked via https://datatracker.ietf.org/doc/draft-ietf-ospf-encapsulation-cap/ballot/ No IPR declarations have been submitted directly on this I-D. The document contains these normative downward references. See RFC 3967 for additional information: draft-ietf-idr-tunnel-encaps: The BGP Tunnel Encapsulation Attribute (None - IETF stream) From nobody Thu Aug 17 13:45:15 2017 Return-Path: X-Original-To: ospf@ietf.org Delivered-To: ospf@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 0ED03126B6E; Thu, 17 Aug 2017 13:45:13 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: IETF Meeting Session Request Tool To: Cc: ospf@ietf.org, acee@cisco.com, ospf-chairs@ietf.org, akatlas@gmail.com X-Test-IDTracker: no X-IETF-IDTracker: 6.58.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <150300271296.12014.10543849373336024703.idtracker@ietfa.amsl.com> Date: Thu, 17 Aug 2017 13:45:12 -0700 Archived-At: Subject: [OSPF] ospf - New Meeting Session Request for IETF 100 X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 17 Aug 2017 20:45:13 -0000 A new meeting session request has just been submitted by Acee Lindem, a Chair of the ospf working group. --------------------------------------------------------- Working Group Name: Open Shortest Path First IGP Area Name: Routing Area Session Requester: Acee Lindem Number of Sessions: 1 Length of Session(s): 2.5 Hours Number of Attendees: 75 Conflicts to Avoid: First Priority: rtgwg idr spring netmod Second Priority: pim bier bess Third Priority: mpls People who must be present: Acee Lindem Christian Hopps Abhay Roy Alia Atlas Hannes Gredler Resources Requested: Special Requests: This 2.5 hour session will be a joint session with the IS-IS WG (which is why it is not included in the conflicts) --------------------------------------------------------- From nobody Fri Aug 18 14:42:38 2017 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5C8A913234C for ; 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c=relaxed/simple; d=cisco.com; i=@cisco.com; l=676; q=dns/txt; s=iport; t=1503092553; x=1504302153; h=subject:to:references:from:message-id:date:mime-version: in-reply-to:content-transfer-encoding; bh=IEdI8K3vi7wTEy1j+x7K/HGnTzFmAEfw8aoacKuIUvU=; b=Z14vz388hVBunXt4wuD0fFRFgUZDZcRxJqdNzAJSVcZkdEAlhTCFoX82 b5JePbXkOpPnwCZR/BxdHuVzTW9RjP6YBRqFcP7N0MPpUwuht3lQtVged O38nEqX3aSOlvjDgYO75NsKuB1eqxhI6OZ+poLJxZnN8hTo1McmPfwFoN Q=; X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: =?us-ascii?q?A0D9BAC2XpdZ/5ldJa1eGQEBAQEBAQEBA?= =?us-ascii?q?QEBBwEBAQEBg1pkgRWeJTkBAQEBAQUBgQgeAQOWHIISIQuFGwKDbkEWAQIBAQE?= =?us-ascii?q?BAQEBayiFGQEBAQMBASEVNhsLGAICJgICJzATBgIBAYofDRCsYoImi2MBAQEBA?= =?us-ascii?q?QUBAQEBAR4FgQuCHYICgQWCVQuCcYU/gkeCYQWRF4EPjieHVIxughCFYYNYhxW?= =?us-ascii?q?WHiYBMIEKMiEIHBVJhzogNopSAQEB?= X-IronPort-AV: E=Sophos;i="5.41,393,1498521600"; d="scan'208";a="468784628" Received: from rcdn-core-2.cisco.com ([173.37.93.153]) by alln-iport-2.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 18 Aug 2017 21:42:33 +0000 Received: from [10.24.44.82] ([10.24.44.82]) (authenticated bits=0) by rcdn-core-2.cisco.com (8.14.5/8.14.5) with ESMTP id v7ILgWXb009953 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO) for ; Fri, 18 Aug 2017 21:42:32 GMT To: ospf@ietf.org References: From: Abhay Roy Message-ID: <9a86c7c4-f3c4-c28d-4747-2707333e6f30@cisco.com> Date: Fri, 18 Aug 2017 14:42:33 -0700 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US X-Authenticated-User: akr Archived-At: Subject: Re: [OSPF] WG adoption poll for draft-ppsenak-ospf-te-link-attr-reuse X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 18 Aug 2017 21:42:35 -0000 There is ample support for picking up this work in OSPF WG.. We are accepting this as a working group item. Authors please resubmit the document with draft-ietf* name.. Regards, -Abhay On 7/3/17 11:37 AM, Abhay Roy wrote: > We would like to kick-off a poll for WG adoption of the following > document (per Authors request): > > https://datatracker.ietf.org/doc/draft-ppsenak-ospf-te-link-attr-reuse > > Please let us know if you support or have concerns with OSPF WG > adopting this work. > > Regards, > -Abhay > > _______________________________________________ > OSPF mailing list > OSPF@ietf.org > https://www.ietf.org/mailman/listinfo/ospf From nobody Mon Aug 21 04:21:01 2017 Return-Path: X-Original-To: ospf@ietf.org Delivered-To: ospf@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 29FDA1329E1; Mon, 21 Aug 2017 04:20:59 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: ospf@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.58.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <150331445905.6662.4884348047540909791@ietfa.amsl.com> Date: Mon, 21 Aug 2017 04:20:59 -0700 Archived-At: Subject: [OSPF] I-D Action: draft-ietf-ospf-te-link-attr-reuse-00.txt X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 21 Aug 2017 11:20:59 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Open Shortest Path First IGP WG of the IETF. Title : OSPFv2 Link Traffic Engineering (TE) Attribute Reuse Authors : Peter Psenak Acee Lindem Les Ginsberg Wim Henderickx Jeff Tantsura Hannes Gredler Filename : draft-ietf-ospf-te-link-attr-reuse-00.txt Pages : 15 Date : 2017-08-21 Abstract: Various link attributes have been defined in OSPFv2 in the context of the MPLS Traffic Engineering (TE) and GMPLS. Many of these link attributes can be used for purposes other than MPLS Traffic Engineering or GMPLS. This documents defines how to distribute such attributes in OSPFv2 for applications other than MPLS Traffic Engineering or GMPLS purposes. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-ospf-te-link-attr-reuse/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-ospf-te-link-attr-reuse-00 https://datatracker.ietf.org/doc/html/draft-ietf-ospf-te-link-attr-reuse-00 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Mon Aug 21 08:40:54 2017 Return-Path: X-Original-To: ospf@ietf.org Delivered-To: ospf@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 7F6E013235A; Mon, 21 Aug 2017 08:40:46 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Pete Resnick To: Cc: ospf@ietf.org, draft-ietf-ospf-encapsulation-cap.all@ietf.org, ietf@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.58.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <150333004648.6756.16820249680656378919@ietfa.amsl.com> Date: Mon, 21 Aug 2017 08:40:46 -0700 Archived-At: Subject: [OSPF] Genart last call review of draft-ietf-ospf-encapsulation-cap-06 X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 21 Aug 2017 15:40:47 -0000 Reviewer: Pete Resnick Review result: Almost Ready I am the assigned Gen-ART reviewer for this draft. The General Area Review Team (Gen-ART) reviews all IETF documents being processed by the IESG for the IETF Chair. Please treat these comments just like any other last call comments. For more information, please see the FAQ at . Document: draft-ietf-ospf-encapsulation-cap-06 Reviewer: Pete Resnick Review Date: 2017-08-21 IETF LC End Date: 2017-08-28 IESG Telechat date: 2017-08-31 Summary: Almost Ready The content of this document is fine. However, I think the IANA registry stuff is not ready. Major issues: I think the registrations other than for Endpoint and Color are incorrect and should not be in this document. Certainly the "Reference" field for 1, 2, 5, 6, and 7 should not be "This document", given that the syntax and semantics for these values are defined in other documents. I also think that having things in this registry which are also used by the BGP registry is asking for trouble: You wouldn't want the references for the two registries to get out of sync. This seems like a mess to me. Would it be possible for IANA to simply rename the "BGP Tunnel Encapsulation Attribute Sub-TLVs" registry to "BGP and OSPF Tunnel Encapsulation Attribute Sub-TLVs", and share the registry between the two protocols? Then have this (and other) document(s) add values to that registry. That way, the documents that actually define the codepoints can be put into the registry. Minor issues: None. Nits/editorial comments: In section 7.1, please add: [RFC Editor: Please replace "TBD1" in section 3 with the registry value allocated by IANA, and remove this note]. That will save them from hunting. From nobody Mon Aug 21 08:58:07 2017 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 060B3132A67; Mon, 21 Aug 2017 08:58:05 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.521 X-Spam-Level: X-Spam-Status: No, score=-14.521 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, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, 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 key) header.d=cisco.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 cgDIHrLfHOm5; Mon, 21 Aug 2017 08:58:04 -0700 (PDT) Received: from rcdn-iport-9.cisco.com (rcdn-iport-9.cisco.com [173.37.86.80]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 9D8AD132026; 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21 Aug 2017 15:58:02 +0000 Received: from XCH-RTP-015.cisco.com (xch-rtp-015.cisco.com [64.101.220.155]) by alln-core-1.cisco.com (8.14.5/8.14.5) with ESMTP id v7LFw2Gs028335 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Mon, 21 Aug 2017 15:58:02 GMT Received: from xch-rtp-015.cisco.com (64.101.220.155) by XCH-RTP-015.cisco.com (64.101.220.155) with Microsoft SMTP Server (TLS) id 15.0.1210.3; Mon, 21 Aug 2017 11:58:01 -0400 Received: from xch-rtp-015.cisco.com ([64.101.220.155]) by XCH-RTP-015.cisco.com ([64.101.220.155]) with mapi id 15.00.1210.000; Mon, 21 Aug 2017 11:58:01 -0400 From: "Acee Lindem (acee)" To: Pete Resnick , "gen-art@ietf.org" CC: "ospf@ietf.org" , "draft-ietf-ospf-encapsulation-cap.all@ietf.org" , "ietf@ietf.org" Thread-Topic: Genart last call review of draft-ietf-ospf-encapsulation-cap-06 Thread-Index: AQHTGpPf4Ro7Zv5kzUulT2W0ZGd6S6KO90qA Date: Mon, 21 Aug 2017 15:58:01 +0000 Message-ID: References: <150333004648.6756.16820249680656378919@ietfa.amsl.com> In-Reply-To: <150333004648.6756.16820249680656378919@ietfa.amsl.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.116.152.201] Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Subject: Re: [OSPF] Genart last call review of draft-ietf-ospf-encapsulation-cap-06 X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 21 Aug 2017 15:58:06 -0000 SGkgUGV0ZSwNCg0KT24gOC8yMS8xNywgMTE6NDAgQU0sICJQZXRlIFJlc25pY2siIDxwcmVzbmlj a0BxdGkucXVhbGNvbW0uY29tPiB3cm90ZToNCg0KPlJldmlld2VyOiBQZXRlIFJlc25pY2sNCj5S ZXZpZXcgcmVzdWx0OiBBbG1vc3QgUmVhZHkNCj4NCj5JIGFtIHRoZSBhc3NpZ25lZCBHZW4tQVJU IHJldmlld2VyIGZvciB0aGlzIGRyYWZ0LiBUaGUgR2VuZXJhbCBBcmVhDQo+UmV2aWV3IFRlYW0g KEdlbi1BUlQpIHJldmlld3MgYWxsIElFVEYgZG9jdW1lbnRzIGJlaW5nIHByb2Nlc3NlZA0KPmJ5 IHRoZSBJRVNHIGZvciB0aGUgSUVURiBDaGFpci4gIFBsZWFzZSB0cmVhdCB0aGVzZSBjb21tZW50 cyBqdXN0DQo+bGlrZSBhbnkgb3RoZXIgbGFzdCBjYWxsIGNvbW1lbnRzLg0KPg0KPkZvciBtb3Jl IGluZm9ybWF0aW9uLCBwbGVhc2Ugc2VlIHRoZSBGQVEgYXQNCj4NCj48aHR0cHM6Ly90cmFjLmll dGYub3JnL3RyYWMvZ2VuL3dpa2kvR2VuQXJ0ZmFxPi4NCj4NCj5Eb2N1bWVudDogZHJhZnQtaWV0 Zi1vc3BmLWVuY2Fwc3VsYXRpb24tY2FwLTA2DQo+UmV2aWV3ZXI6IFBldGUgUmVzbmljaw0KPlJl dmlldyBEYXRlOiAyMDE3LTA4LTIxDQo+SUVURiBMQyBFbmQgRGF0ZTogMjAxNy0wOC0yOA0KPklF U0cgVGVsZWNoYXQgZGF0ZTogMjAxNy0wOC0zMQ0KPg0KPlN1bW1hcnk6IEFsbW9zdCBSZWFkeQ0K Pg0KPlRoZSBjb250ZW50IG9mIHRoaXMgZG9jdW1lbnQgaXMgZmluZS4gSG93ZXZlciwgSSB0aGlu ayB0aGUgSUFOQSByZWdpc3RyeQ0KPnN0dWZmDQo+aXMgbm90IHJlYWR5Lg0KPg0KPk1ham9yIGlz c3VlczoNCj4NCj5JIHRoaW5rIHRoZSByZWdpc3RyYXRpb25zIG90aGVyIHRoYW4gZm9yIEVuZHBv aW50IGFuZCBDb2xvciBhcmUgaW5jb3JyZWN0DQo+YW5kDQo+c2hvdWxkIG5vdCBiZSBpbiB0aGlz IGRvY3VtZW50LiBDZXJ0YWlubHkgdGhlICJSZWZlcmVuY2UiIGZpZWxkIGZvciAxLCAyLA0KPjUs IDYsDQo+YW5kIDcgc2hvdWxkIG5vdCBiZSAiVGhpcyBkb2N1bWVudCIsIGdpdmVuIHRoYXQgdGhl IHN5bnRheCBhbmQgc2VtYW50aWNzDQo+Zm9yDQo+dGhlc2UgdmFsdWVzIGFyZSBkZWZpbmVkIGlu IG90aGVyIGRvY3VtZW50cy4NCg0KVGhlIGF1dGhvcnMgY2FuIGZpeCB0aGVzZS4NCg0KPiBJIGFs c28gdGhpbmsgdGhhdCBoYXZpbmcgdGhpbmdzIGluDQo+dGhpcyByZWdpc3RyeSB3aGljaCBhcmUg YWxzbyB1c2VkIGJ5IHRoZSBCR1AgcmVnaXN0cnkgaXMgYXNraW5nIGZvcg0KPnRyb3VibGU6DQo+ WW91IHdvdWxkbid0IHdhbnQgdGhlIHJlZmVyZW5jZXMgZm9yIHRoZSB0d28gcmVnaXN0cmllcyB0 byBnZXQgb3V0IG9mDQo+c3luYy4NCj5UaGlzIHNlZW1zIGxpa2UgYSBtZXNzIHRvIG1lLiBXb3Vs ZCBpdCBiZSBwb3NzaWJsZSBmb3IgSUFOQSB0byBzaW1wbHkNCj5yZW5hbWUNCj50aGUgIkJHUCBU dW5uZWwgRW5jYXBzdWxhdGlvbiBBdHRyaWJ1dGUgU3ViLVRMVnMiIHJlZ2lzdHJ5IHRvICJCR1Ag YW5kDQo+T1NQRg0KPlR1bm5lbCBFbmNhcHN1bGF0aW9uIEF0dHJpYnV0ZSBTdWItVExWcyIsIGFu ZCBzaGFyZSB0aGUgcmVnaXN0cnkgYmV0d2Vlbg0KPnRoZQ0KPnR3byBwcm90b2NvbHM/IFRoZW4g aGF2ZSB0aGlzIChhbmQgb3RoZXIpIGRvY3VtZW50KHMpIGFkZCB2YWx1ZXMgdG8gdGhhdA0KPnJl Z2lzdHJ5LiBUaGF0IHdheSwgdGhlIGRvY3VtZW50cyB0aGF0IGFjdHVhbGx5IGRlZmluZSB0aGUg Y29kZXBvaW50cyBjYW4NCj5iZQ0KPnB1dCBpbnRvIHRoZSByZWdpc3RyeS4NCg0KV2XigJl2ZSBh bHJlYWR5IGhhZCBhIHByb3RyYWN0ZWQgZGlzY3Vzc2lvbiBvbiB0aGUgSUFOQSByZWdpc3RyaWVz LiBJdCBpcw0Kbm90IHBvc3NpYmxlIGFzIEJHUCBhZHZlcnRpc2VzIHNvbWUgb2YgdGhlIGF0dHJp YnV0ZXMgaW4gQkdQIGNvbW11bml0aWVzDQpyYXRoZXIgdGhhbiB0dW5uZWwgYXR0cmlidXRlcyAo ZS5nLiwgY29sb3IpLg0KDQpUaGFua3MsDQpBY2VlIA0KDQo+DQo+TWlub3IgaXNzdWVzOg0KPg0K Pk5vbmUuDQo+DQo+Tml0cy9lZGl0b3JpYWwgY29tbWVudHM6DQo+DQo+SW4gc2VjdGlvbiA3LjEs IHBsZWFzZSBhZGQ6DQo+DQo+ICAgW1JGQyBFZGl0b3I6IFBsZWFzZSByZXBsYWNlICJUQkQxIiBp biBzZWN0aW9uIDMgd2l0aCB0aGUgcmVnaXN0cnkgdmFsdWUNCj4gICBhbGxvY2F0ZWQgYnkgSUFO QSwgYW5kIHJlbW92ZSB0aGlzIG5vdGVdLg0KPg0KPlRoYXQgd2lsbCBzYXZlIHRoZW0gZnJvbSBo dW50aW5nLg0KPg0KDQo= From nobody Mon Aug 21 09:13:20 2017 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id CB6F0132A6D; 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Mon, 21 Aug 2017 09:12:55 -0700 From: Pete Resnick To: Acee Lindem CC: "gen-art@ietf.org" , "ospf@ietf.org" , "draft-ietf-ospf-encapsulation-cap.all@ietf.org" , "ietf@ietf.org" Date: Mon, 21 Aug 2017 11:12:54 -0500 Message-ID: <5B41B581-74F4-4F57-B811-F535044350F4@qti.qualcomm.com> In-Reply-To: References: <150333004648.6756.16820249680656378919@ietfa.amsl.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8"; format=flowed; markup=markdown Content-Transfer-Encoding: 8bit X-Mailer: MailMate (1.9.6r5347) X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: NASANEXM01G.na.qualcomm.com (10.85.0.33) To NASANEXM01F.na.qualcomm.com (10.85.0.32) Archived-At: Subject: Re: [OSPF] Genart last call review of draft-ietf-ospf-encapsulation-cap-06 X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 21 Aug 2017 16:13:13 -0000 On 21 Aug 2017, at 10:58, Acee Lindem (acee) wrote: > Hi Pete, > > On 8/21/17, 11:40 AM, "Pete Resnick" > wrote: > >> Reviewer: Pete Resnick >> Review result: Almost Ready >> >> I am the assigned Gen-ART reviewer for this draft. The General Area >> Review Team (Gen-ART) reviews all IETF documents being processed >> by the IESG for the IETF Chair. Please treat these comments just >> like any other last call comments. >> >> For more information, please see the FAQ at >> >> . >> >> Document: draft-ietf-ospf-encapsulation-cap-06 >> Reviewer: Pete Resnick >> Review Date: 2017-08-21 >> IETF LC End Date: 2017-08-28 >> IESG Telechat date: 2017-08-31 >> >> Summary: Almost Ready >> >> The content of this document is fine. However, I think the IANA >> registry >> stuff >> is not ready. >> >> Major issues: >> >> I think the registrations other than for Endpoint and Color are >> incorrect >> and >> should not be in this document. Certainly the "Reference" field for >> 1, 2, >> 5, 6, >> and 7 should not be "This document", given that the syntax and >> semantics >> for >> these values are defined in other documents. > > The authors can fix these. For 1, 2, 6, and 7, that's easy; the drafts defining the values can do the registrations. For 5, the reference would be to an existing RFC that doesn't do the registration. I'm not sure what to do about that; perhaps register it here and make the reference both 5640 and this document. However, when someone goes to update 5640 some day, they're going to have to put into the IANA considerations to update both the OSPF and BGP registries. I'm not sure how to keep track of that. Perhaps saying that this document "Updates: 5640"? That doesn't seem great either. >> I also think that having things in >> this registry which are also used by the BGP registry is asking for >> trouble: >> You wouldn't want the references for the two registries to get out of >> sync. >> This seems like a mess to me. Would it be possible for IANA to simply >> rename >> the "BGP Tunnel Encapsulation Attribute Sub-TLVs" registry to "BGP >> and >> OSPF >> Tunnel Encapsulation Attribute Sub-TLVs", and share the registry >> between >> the >> two protocols? Then have this (and other) document(s) add values to >> that >> registry. That way, the documents that actually define the codepoints >> can >> be >> put into the registry. > > We’ve already had a protracted discussion on the IANA registries. It > is > not possible as BGP advertises some of the attributes in BGP > communities > rather than tunnel attributes (e.g., color). Yuck. I'll try not to prolong the discussion much further, but did you consider the possibility of having some of the attributes appear twice, with one saying "For BGP communities only" and the other saying, "For OSPF tunnels only"? What a lovely mess. :-( > Thanks, > Acee Cheers, pr >> Minor issues: >> >> None. >> >> Nits/editorial comments: >> >> In section 7.1, please add: >> >> [RFC Editor: Please replace "TBD1" in section 3 with the registry >> value >> allocated by IANA, and remove this note]. >> >> That will save them from hunting. >> -- Pete Resnick Qualcomm Technologies, Inc. - +1 (858)651-4478 From nobody Mon Aug 21 11:45:10 2017 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 6DB57132709; Mon, 21 Aug 2017 11:44:52 -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: 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charset="utf-8" Content-ID: <167EE52B6ABAC6448E0EF99B087A9DBD@emea.cisco.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Archived-At: Subject: Re: [OSPF] Genart last call review of draft-ietf-ospf-encapsulation-cap-06 X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 21 Aug 2017 18:44:53 -0000 DQoNCk9uIDgvMjEvMTcsIDEyOjEyIFBNLCAiUGV0ZSBSZXNuaWNrIiA8cHJlc25pY2tAcXRpLnF1 YWxjb21tLmNvbT4gd3JvdGU6DQoNCj5PbiAyMSBBdWcgMjAxNywgYXQgMTA6NTgsIEFjZWUgTGlu ZGVtIChhY2VlKSB3cm90ZToNCj4NCj4+IEhpIFBldGUsDQo+Pg0KPj4gT24gOC8yMS8xNywgMTE6 NDAgQU0sICJQZXRlIFJlc25pY2siIDxwcmVzbmlja0BxdGkucXVhbGNvbW0uY29tPg0KPj4gd3Jv dGU6DQo+Pg0KPj4+IFJldmlld2VyOiBQZXRlIFJlc25pY2sNCj4+PiBSZXZpZXcgcmVzdWx0OiBB bG1vc3QgUmVhZHkNCj4+Pg0KPj4+IEkgYW0gdGhlIGFzc2lnbmVkIEdlbi1BUlQgcmV2aWV3ZXIg 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charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: ospf@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.58.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <150341181595.6055.7538365274271195987@ietfa.amsl.com> Date: Tue, 22 Aug 2017 07:23:36 -0700 Archived-At: Subject: [OSPF] I-D Action: draft-ietf-ospf-te-link-attr-reuse-01.txt X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 22 Aug 2017 14:23:36 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Open Shortest Path First IGP WG of the IETF. Title : OSPFv2 Link Traffic Engineering (TE) Attribute Reuse Authors : Peter Psenak Acee Lindem Les Ginsberg Wim Henderickx Jeff Tantsura Hannes Gredler John Drake Filename : draft-ietf-ospf-te-link-attr-reuse-01.txt Pages : 15 Date : 2017-08-22 Abstract: Various link attributes have been defined in OSPFv2 in the context of the MPLS Traffic Engineering (TE) and GMPLS. Many of these link attributes can be used for purposes other than MPLS Traffic Engineering or GMPLS. This documents defines how to distribute such attributes in OSPFv2 for applications other than MPLS Traffic Engineering or GMPLS purposes. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-ospf-te-link-attr-reuse/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-ospf-te-link-attr-reuse-01 https://datatracker.ietf.org/doc/html/draft-ietf-ospf-te-link-attr-reuse-01 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-ospf-te-link-attr-reuse-01 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Wed Aug 23 18:21:56 2017 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 377C513219F; Wed, 23 Aug 2017 18:21:49 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.221 X-Spam-Level: X-Spam-Status: No, score=-4.221 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-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 sALpQ3p_4CY9; Wed, 23 Aug 2017 18:21:47 -0700 (PDT) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id D35C5126B7E; Wed, 23 Aug 2017 18:21:45 -0700 (PDT) Received: from 172.18.7.190 (EHLO lhreml708-cah.china.huawei.com) ([172.18.7.190]) by lhrrg02-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id DNF27927; Thu, 24 Aug 2017 01:21:44 +0000 (GMT) Received: from NKGEML414-HUB.china.huawei.com (10.98.56.75) by lhreml708-cah.china.huawei.com (10.201.108.49) with Microsoft SMTP Server (TLS) id 14.3.301.0; Thu, 24 Aug 2017 02:21:43 +0100 Received: from NKGEML515-MBX.china.huawei.com ([fe80::a54a:89d2:c471:ff]) by nkgeml414-hub.china.huawei.com ([10.98.56.75]) with mapi id 14.03.0235.001; Thu, 24 Aug 2017 09:21:38 +0800 From: Xuxiaohu To: "Acee Lindem (acee)" , Pete Resnick CC: "gen-art@ietf.org" , "ospf@ietf.org" , "draft-ietf-ospf-encapsulation-cap.all@ietf.org" , "ietf@ietf.org" Thread-Topic: Genart last call review of draft-ietf-ospf-encapsulation-cap-06 Thread-Index: AQHTGpPg65n9FtvJ8ESocUdJe7ZtvKKOcUOAgAAEKQCAACpdAIAEGYBg Date: Thu, 24 Aug 2017 01:21:33 +0000 Message-ID: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE2BC0A506@NKGEML515-MBX.china.huawei.com> References: <150333004648.6756.16820249680656378919@ietfa.amsl.com> <5B41B581-74F4-4F57-B811-F535044350F4@qti.qualcomm.com> In-Reply-To: Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.111.184.181] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A090204.599E2A28.0052, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 4d317ccca1bc7328d02f9f9594f03125 Archived-At: Subject: [OSPF] =?utf-8?b?562U5aSNOiBHZW5hcnQgbGFzdCBjYWxsIHJldmlldyBvZiBk?= =?utf-8?q?raft-ietf-ospf-encapsulation-cap-06?= X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 24 Aug 2017 01:21:49 -0000 DQoNCj4gLS0tLS3pgq7ku7bljp/ku7YtLS0tLQ0KPiDlj5Hku7bkuro6IEFjZWUgTGluZGVtIChh Y2VlKSBbbWFpbHRvOmFjZWVAY2lzY28uY29tXQ0KPiDlj5HpgIHml7bpl7Q6IDIwMTflubQ45pyI MjLml6UgMjo0NQ0KPiDmlLbku7bkuro6IFBldGUgUmVzbmljaw0KPiDmioTpgIE6IGdlbi1hcnRA aWV0Zi5vcmc7IG9zcGZAaWV0Zi5vcmc7DQo+IGRyYWZ0LWlldGYtb3NwZi1lbmNhcHN1bGF0aW9u LWNhcC5hbGxAaWV0Zi5vcmc7IGlldGZAaWV0Zi5vcmcNCj4g5Li76aKYOiBSZTogR2VuYXJ0IGxh c3QgY2FsbCByZXZpZXcgb2YgZHJhZnQtaWV0Zi1vc3BmLWVuY2Fwc3VsYXRpb24tY2FwLTA2DQo+ IA0KPiANCj4gDQo+IE9uIDgvMjEvMTcsIDEyOjEyIFBNLCAiUGV0ZSBSZXNuaWNrIiA8cHJlc25p Y2tAcXRpLnF1YWxjb21tLmNvbT4gd3JvdGU6DQo+IA0KPiA+T24gMjEgQXVnIDIwMTcsIGF0IDEw OjU4LCBBY2VlIExpbmRlbSAoYWNlZSkgd3JvdGU6DQo+ID4NCj4gPj4gSGkgUGV0ZSwNCj4gPj4N Cj4gPj4gT24gOC8yMS8xNywgMTE6NDAgQU0sICJQZXRlIFJlc25pY2siIDxwcmVzbmlja0BxdGku cXVhbGNvbW0uY29tPg0KPiA+PiB3cm90ZToNCj4gPj4NCj4gPj4+IFJldmlld2VyOiBQZXRlIFJl 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NTEtNDQ3OA0KDQo= From nobody Wed Aug 23 21:39:17 2017 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 0F2981329CF; Wed, 23 Aug 2017 21:39:10 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.99 X-Spam-Level: X-Spam-Status: No, score=-1.99 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, T_SPF_PERMERROR=0.01] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=strayalpha.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 7U6AOxg6q_cV; Wed, 23 Aug 2017 21:39:08 -0700 (PDT) Received: from server217-3.web-hosting.com (server217-3.web-hosting.com [198.54.115.226]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 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cpe-172-250-240-132.socal.res.rr.com ([172.250.240.132]:52647 helo=[192.168.1.189]) by server217.web-hosting.com with esmtpsa (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128) (Exim 4.87) (envelope-from ) id 1dkjv8-001aJr-Lr; Thu, 24 Aug 2017 00:39:07 -0400 To: IETF discussion list , ospf@ietf.org References: <150280426212.21081.15543071828535131713.idtracker@ietfa.amsl.com> Cc: TSV Dir From: Joe Touch Message-ID: <7ca66dbe-1437-482d-a785-d5e48a558ccb@strayalpha.com> Date: Wed, 23 Aug 2017 21:39:04 -0700 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.3.0 MIME-Version: 1.0 In-Reply-To: <150280426212.21081.15543071828535131713.idtracker@ietfa.amsl.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Content-Language: en-US X-OutGoing-Spam-Status: No, score=-1.0 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - server217.web-hosting.com X-AntiAbuse: Original Domain - ietf.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - strayalpha.com X-Get-Message-Sender-Via: server217.web-hosting.com: authenticated_id: touch@strayalpha.com X-Authenticated-Sender: server217.web-hosting.com: touch@strayalpha.com X-Source: X-Source-Args: X-Source-Dir: X-From-Rewrite: unmodified, already matched Archived-At: Subject: [OSPF] tsv-dir review of draft-ietf-ospf-encapsulation-cap-06 X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 24 Aug 2017 04:39:10 -0000 Hi, all, I am the assigned TSV-ART reviewer for draft-ietf-ospf-encapsulation-cap For background on TSV-ART, please see the FAQ at . Please resolve these comments along with any other Last Call comments you may receive. Joe ------ I've reviewed this document as part of the transport area directorate's ongoing effort to review key IETF documents. These comments were written primarily for the transport area directors, but are copied to the document's authors for their information and to allow them to address any issues raised. When done at the time of IETF Last Call, the authors should consider this review together with any other last-call comments they receive. Please always CC tsv-dir@ietf.org if you reply to or forward this review. "This draft has serious issues, described in the review, and needs to be rethought." Although I found no transport issues, there are many fundamental problems that need to be corrected before this document should proceed. These are summarized below. Sec1: The introduction jumps too quickly into a list of situations in which tunnels are used, two of which are emerging (currently only drafts). There are many better and more established examples (going back to the M-Bone, the 6-Bone, etc., to VPNs, network virtualization, etc.). Terms are used before defined (what is an ingress? are you referring to the router or host at which a tunnel is attached, or the input to the tunnel itself?). The last two sentences should begin the intro, which should expand and explain what is meant (e.g., by "egress tunneling" and the reason for wanting to encode tunnels as LSAs. Sec2: The terminology section is incomplete. The terms tunnel, ingress, egress, egress tunneling, etc. are not defined in RFC7770. Only the LSA terminology is relevant from that RFC. Other terms need to be defined in this doc or used from others. Sec3: This section is written as if the "Encapsulation Capability TLV" is already defined (in RFC7770), rather than being defined herein. The section title doesn't match this name, which is confusing. The term TLV is itself confusing, as this is really a single TLV of the RI Opaque LSA set of types, which itself is represented as a (sub)TLV list. I appreciate that this terminology was made confusing in previous, established documents, but a bit of explanation would go a long way - as would showing the top-level OSPF RI Opaque LSA and where the new TBD1 value would appear - before diving into the structure inside this new "TLV". Sec 4: the discussion should clarify what happens if the length field is longer than the fields indicated by the sub-TLVs (is this an error or padding to be ignored; does the latter present a covert channel). additionally, this section refers to RFC5512 - which is being obsoleted by ietf-idr-tunnel-encaps - and this pending ID is used as the primary reference in Secs 5.1 and 5.2. References to RFC5512 should be replaced with that ID (which I'll assume will be published concurrently). Sec 5: this section refers to the concept of an "invalid" sub-TLV; given the previous sentence explains that unknown sub-TLVs are silently ignored, then what exactly is an invalid sub-TLV? It further isn't clear why 2 octets of type and 2 octets of length are needed (granted it provides alignment, but is that really important for this sort of application-layer protocol?) Sec 5.1 and 5.2: it is unclear why the two fundamental sub-TLVs of this TLV are defined elsewhere; in specific, the example of the sub-TLV should appear here (actually for each of the sub-TLVs). Sec 5.3 infers IP address version from length, when the version could (should) easily encoded either as different types (you have 65K of them!) or using an additional few bits (e.g., carved out of the excesses noted in Sec 5). Sec 5.4 - I had to thread through several different sections of the IDR ID to figure out what Color meant and how it is used. Granted that is a different problem in a different doc, IMO this doc should include enough of a summary that this sort of 'traceback' should not be needed to understand what is being described. Further, the other doc doesn't even explain Color sufficiently, IMO. Secs 5.6 and 5.7 - There are many rules for how the outer encapsulation header is composed, and many fields it may affect beyond QoS and UDP destination port. This section is incomplete in describing values for the outer header(s) or relationships to the inner header(s). Sec 6 - I would encourage moving this section earlier, before the details of how the LSA is composed. Sec 7 - the document should describe where experimental values can/should be safely used and how collisions are handled; it should also explain what happens when a reserved value is seen in an LSA. ---- From nobody Thu Aug 24 09:25:23 2017 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id CCDE713243E; Thu, 24 Aug 2017 09:25:14 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.521 X-Spam-Level: X-Spam-Status: No, score=-14.521 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, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, 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 key) header.d=cisco.com Received: from mail.ietf.org ([4.31.198.44]) by localhost 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nasanexm01f.na.qualcomm.com ([10.85.0.32]) by Ironmsg04-R.qualcomm.com with ESMTP/TLS/RC4-SHA; 24 Aug 2017 12:59:39 -0700 Received: from [10.110.41.50] (10.80.80.8) by NASANEXM01F.na.qualcomm.com (10.85.0.32) with Microsoft SMTP Server (TLS) id 15.0.1178.4; Thu, 24 Aug 2017 12:59:39 -0700 From: Pete Resnick To: Acee Lindem CC: Xuxiaohu , "gen-art@ietf.org" , "ospf@ietf.org" , "draft-ietf-ospf-encapsulation-cap.all@ietf.org" , "ietf@ietf.org" Date: Thu, 24 Aug 2017 14:59:37 -0500 Message-ID: In-Reply-To: References: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="=_MailMate_601E3A86-581B-4610-AD51-3F633A67ABF6_=" Content-Transfer-Encoding: 8bit X-Mailer: MailMate (1.9.6r5347) X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: NASANEXM01E.na.qualcomm.com (10.85.0.31) To NASANEXM01F.na.qualcomm.com (10.85.0.32) Archived-At: Subject: Re: [OSPF] =?utf-8?b?562U5aSNOiBHZW5hcnQgbGFzdCBjYWxsIHJldmlldyBv?= =?utf-8?q?f_draft-ietf-ospf-encapsulation-cap-06?= X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 24 Aug 2017 19:59:43 -0000 --=_MailMate_601E3A86-581B-4610-AD51-3F633A67ABF6_= Content-Type: text/plain; charset="utf-8"; format=flowed; markup=markdown Content-Transfer-Encoding: 8bit On 24 Aug 2017, at 11:24, Acee Lindem (acee) wrote: >>>> For 1, 2, 6, and 7, that's easy; the drafts defining the values can >>>> do >>>> the registrations. For 5, the reference would be to an existing RFC >>>> that doesn't do the registration. I'm not sure what to do about >>>> that; >>>> perhaps register it here and make the reference both 5640 and this >>> document. > > Actually, this document does assign these code points in the registry > so > “This document” is appropriate. The value portion of these TLVs > just > happened to be described via a reference rather than text. There is nothing preventing the IANA registry from having useful information. :-) Yes, this document registers it, but really what the implementer is going to need is this document *and* 5640, so I see no particular harm in putting both references in the registry, and it's probably useful. pr -- Pete Resnick Qualcomm Technologies, Inc. - +1 (858)651-4478 --=_MailMate_601E3A86-581B-4610-AD51-3F633A67ABF6_= Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable

On 24 Aug 2017, at 11:24, Acee Lindem (acee) wrote:

For 1, 2, 6, and 7, that's easy; the drafts defining the = values can do
the registrations. For 5, the reference would be to an existing RFC
that doesn't do the registration. I'm not sure what to do about that;
= perhaps register it here and make the reference both 5640 and this

document.

Actually, this document does assign these code points in = the registry so
=E2=80=9CThis document=E2=80=9D is appropriate. The value portion of thes= e TLVs just
happened to be described via a reference rather than text.

There is nothing preventing the IANA registry from having= useful information. :-) Yes, this document registers it, but really what= the implementer is going to need is this document and 5640, so = I see no particular harm in putting both references in the registry, and = it's probably useful.

pr
--
Pete Resnick http://www.qualcomm.com/~presnick/
Qualcomm Technologies, Inc. - +1 (858)651-4478

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cD4NCjwvZGl2Pg0KPC9kaXY+DQo8L2Rpdj4NCjwvZGl2Pg0KPC9ibG9ja3F1b3RlPg0KPC9zcGFu Pg0KPC9ib2R5Pg0KPC9odG1sPg0K --_000_D5C4B41BC3926aceeciscocom_-- From nobody Fri Aug 25 04:25:04 2017 Return-Path: X-Original-To: ospf@ietf.org Delivered-To: ospf@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 3AF9713291F; Fri, 25 Aug 2017 04:25:03 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: ospf@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.58.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <150366030322.19657.5001536812457233870@ietfa.amsl.com> Date: Fri, 25 Aug 2017 04:25:03 -0700 Archived-At: Subject: [OSPF] I-D Action: draft-ietf-ospf-segment-routing-extensions-19.txt X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 25 Aug 2017 11:25:03 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Open Shortest Path First IGP WG of the IETF. Title : OSPF Extensions for Segment Routing Authors : Peter Psenak Stefano Previdi Clarence Filsfils Hannes Gredler Rob Shakir Wim Henderickx Jeff Tantsura Filename : draft-ietf-ospf-segment-routing-extensions-19.txt Pages : 28 Date : 2017-08-25 Abstract: Segment Routing (SR) allows a flexible definition of end-to-end paths within IGP topologies by encoding paths as sequences of topological sub-paths, called "segments". These segments are advertised by the link-state routing protocols (IS-IS and OSPF). This draft describes the OSPF extensions required for Segment Routing. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-ospf-segment-routing-extensions/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-ospf-segment-routing-extensions-19 https://datatracker.ietf.org/doc/html/draft-ietf-ospf-segment-routing-extensions-19 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-ospf-segment-routing-extensions-19 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ From nobody Sun Aug 27 17:52:20 2017 Return-Path: X-Original-To: ospf@ietf.org Delivered-To: ospf@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id A7A5C13219C; Sun, 27 Aug 2017 17:52:18 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Spencer Dawkins To: "The IESG" Cc: draft-ietf-ospf-encapsulation-cap@ietf.org, Acee Lindem , ospf-chairs@ietf.org, acee@cisco.com, ospf@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.58.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <150388153868.9904.13411224866079270020.idtracker@ietfa.amsl.com> Date: Sun, 27 Aug 2017 17:52:18 -0700 Archived-At: Subject: [OSPF] Spencer Dawkins' No Objection on draft-ietf-ospf-encapsulation-cap-06: (with COMMENT) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 28 Aug 2017 00:52:18 -0000 Spencer Dawkins has entered the following ballot position for draft-ietf-ospf-encapsulation-cap-06: No Objection When responding, please keep the subject line intact and reply to all email addresses included in the To and CC lines. (Feel free to cut this introductory paragraph, however.) Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html for more information about IESG DISCUSS and COMMENT positions. The document, along with other ballot positions, can be found here: https://datatracker.ietf.org/doc/draft-ietf-ospf-encapsulation-cap/ ---------------------------------------------------------------------- COMMENT: ---------------------------------------------------------------------- It surprised me to learn that this capability wasn't already in OSPF! Thanks for doing the work. From nobody Sun Aug 27 18:02:10 2017 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E8D09132661; Sun, 27 Aug 2017 18:02:08 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.221 X-Spam-Level: X-Spam-Status: No, score=-4.221 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-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 P5EqyPQZssUp; Sun, 27 Aug 2017 18:02:06 -0700 (PDT) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id D973F13264C; Sun, 27 Aug 2017 18:02:04 -0700 (PDT) Received: from 172.18.7.190 (EHLO LHREML713-CAH.china.huawei.com) ([172.18.7.190]) by lhrrg02-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id DNK81042; Mon, 28 Aug 2017 01:02:01 +0000 (GMT) Received: from NKGEML411-HUB.china.huawei.com (10.98.56.70) by LHREML713-CAH.china.huawei.com (10.201.108.36) with Microsoft SMTP Server (TLS) id 14.3.301.0; Mon, 28 Aug 2017 02:01:59 +0100 Received: from NKGEML515-MBX.china.huawei.com ([fe80::a54a:89d2:c471:ff]) by nkgeml411-hub.china.huawei.com ([10.98.56.70]) with mapi id 14.03.0235.001; Mon, 28 Aug 2017 09:01:56 +0800 From: Xuxiaohu To: "Acee Lindem (acee)" , Joe Touch , IETF discussion list , "ospf@ietf.org" , "draft-ietf-ospf-encapsulation-cap@ietf.org" CC: TSV Dir Thread-Topic: [OSPF] tsv-dir review of draft-ietf-ospf-encapsulation-cap-06 Thread-Index: AQHTHJL4HJxqaOXXQEa3hG1IIeBfiaKTdSMAgAWD9RA= Date: Mon, 28 Aug 2017 01:01:45 +0000 Message-ID: <1FEE3F8F5CCDE64C9A8E8F4AD27C19EE2BC0B725@NKGEML515-MBX.china.huawei.com> References: <150280426212.21081.15543071828535131713.idtracker@ietfa.amsl.com> <7ca66dbe-1437-482d-a785-d5e48a558ccb@strayalpha.com> In-Reply-To: Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.111.184.181] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A090204.59A36B89.0044, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 5a87bc95096cacfd64cfb2d208cf4e2e Archived-At: Subject: [OSPF] =?utf-8?b?562U5aSNOiAgdHN2LWRpciByZXZpZXcgb2YgZHJhZnQtaWV0?= =?utf-8?q?f-ospf-encapsulation-cap-06?= X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 28 Aug 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dWVzDQo+ID5jYW4vc2hvdWxkIGJlIHNhZmVseSB1c2VkIGFuZCBob3cgY29sbGlzaW9ucyBhcmUg aGFuZGxlZDsgaXQgc2hvdWxkDQo+ID5hbHNvIGV4cGxhaW4gd2hhdCBoYXBwZW5zIHdoZW4gYSBy ZXNlcnZlZCB2YWx1ZSBpcyBzZWVuIGluIGFuIExTQS4NCj4gPg0KPiA+LS0tLQ0KPiA+DQo+ID4N Cj4gPl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fDQo+ID5P U1BGIG1haWxpbmcgbGlzdA0KPiA+T1NQRkBpZXRmLm9yZw0KPiA+aHR0cHM6Ly93d3cuaWV0Zi5v cmcvbWFpbG1hbi9saXN0aW5mby9vc3BmDQoNCg== From nobody Mon Aug 28 03:40:14 2017 Return-Path: X-Original-To: ospf@ietf.org Delivered-To: ospf@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id D6C751201F8; Mon, 28 Aug 2017 03:40:12 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: =?utf-8?q?Mirja_K=C3=BChlewind?= To: "The IESG" Cc: draft-ietf-ospf-encapsulation-cap@ietf.org, Acee Lindem , ospf-chairs@ietf.org, acee@cisco.com, ospf@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.58.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <150391681287.9966.12112533544527482697.idtracker@ietfa.amsl.com> Date: Mon, 28 Aug 2017 03:40:12 -0700 Archived-At: Subject: [OSPF] =?utf-8?q?Mirja_K=C3=BChlewind=27s_No_Objection_on_draft-i?= =?utf-8?q?etf-ospf-encapsulation-cap-06=3A_=28with_COMMENT=29?= X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 28 Aug 2017 10:40:13 -0000 Mirja Kühlewind has entered the following ballot position for draft-ietf-ospf-encapsulation-cap-06: No Objection When responding, please keep the subject line intact and reply to all email addresses included in the To and CC lines. (Feel free to cut this introductory paragraph, however.) Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html for more information about IESG DISCUSS and COMMENT positions. The document, along with other ballot positions, can be found here: https://datatracker.ietf.org/doc/draft-ietf-ospf-encapsulation-cap/ ---------------------------------------------------------------------- COMMENT: ---------------------------------------------------------------------- I agree with the gen-art review (Thanks Pete!) that the new registry should point to the RFCs that define the actually Sub-TLV (behavior). I would simply recommend to reference both RFCs, this document and the respective other RFC/draft that defines the details. From nobody Tue Aug 29 05:38:18 2017 Return-Path: X-Original-To: ospf@ietf.org Delivered-To: ospf@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id AF48D132A8F; Tue, 29 Aug 2017 05:38:04 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Tim Wicinski To: Cc: ospf@ietf.org, draft-ietf-ospf-encapsulation-cap.all@ietf.org, ietf@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.59.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <150401028465.13280.5869374542696138659@ietfa.amsl.com> Date: Tue, 29 Aug 2017 05:38:04 -0700 Archived-At: Subject: [OSPF] Opsdir last call partial review of draft-ietf-ospf-encapsulation-cap-06 X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 29 Aug 2017 12:38:05 -0000 Review is partially done. Another review request has been registered for completing it. Reviewer: Tim Wicinski Review result: Has Issues Summary: Almost Ready The content appears to be fine, but there are some outdated (the biggest one is 5226 replaced by 8126), but its the IANA section which appears the most confusing. 7.1 OSPF Router Information (RI) Registry - appears fine 7.2 OSPF Tunnel Encapsulation Attribute Sub-TLV Registry This one defines the values being defined/allocated from "This Document" but in Section 5, each Sub-TLV is defined in other documents, so it's totally confusing. From nobody Tue Aug 29 15:28:09 2017 Return-Path: X-Original-To: ospf@ietf.org Delivered-To: ospf@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id B8279132A97; Tue, 29 Aug 2017 15:28:07 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Ben Campbell To: "The IESG" Cc: draft-ietf-ospf-encapsulation-cap@ietf.org, Acee Lindem , ospf-chairs@ietf.org, acee@cisco.com, ospf@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.59.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <150404568774.21525.13415644397578259100.idtracker@ietfa.amsl.com> Date: Tue, 29 Aug 2017 15:28:07 -0700 Archived-At: Subject: [OSPF] Ben Campbell's No Objection on draft-ietf-ospf-encapsulation-cap-06: (with COMMENT) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 29 Aug 2017 22:28:08 -0000 Ben Campbell has entered the following ballot position for draft-ietf-ospf-encapsulation-cap-06: No Objection When responding, please keep the subject line intact and reply to all email addresses included in the To and CC lines. (Feel free to cut this introductory paragraph, however.) Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html for more information about IESG DISCUSS and COMMENT positions. The document, along with other ballot positions, can be found here: https://datatracker.ietf.org/doc/draft-ietf-ospf-encapsulation-cap/ ---------------------------------------------------------------------- COMMENT: ---------------------------------------------------------------------- I agree with Mirja's comment concerning the IANA considerations. From nobody Wed Aug 30 00:57:42 2017 Return-Path: X-Original-To: ospf@ietf.org Delivered-To: ospf@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 80FBA1323B5; Wed, 30 Aug 2017 00:57:21 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Benoit Claise To: "The IESG" Cc: draft-ietf-ospf-encapsulation-cap@ietf.org, Acee Lindem , ospf-chairs@ietf.org, acee@cisco.com, ospf@ietf.org, tjw.ietf@gmail.com X-Test-IDTracker: no X-IETF-IDTracker: 6.59.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <150407984152.21582.13499330365584334713.idtracker@ietfa.amsl.com> Date: Wed, 30 Aug 2017 00:57:21 -0700 Archived-At: Subject: [OSPF] Benoit Claise's Discuss on draft-ietf-ospf-encapsulation-cap-06: (with DISCUSS and COMMENT) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 30 Aug 2017 07:57:22 -0000 Benoit Claise has entered the following ballot position for draft-ietf-ospf-encapsulation-cap-06: Discuss When responding, please keep the subject line intact and reply to all email addresses included in the To and CC lines. (Feel free to cut this introductory paragraph, however.) Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html for more information about IESG DISCUSS and COMMENT positions. The document, along with other ballot positions, can be found here: https://datatracker.ietf.org/doc/draft-ietf-ospf-encapsulation-cap/ ---------------------------------------------------------------------- DISCUSS: ---------------------------------------------------------------------- 1. I agree with Tim Wicinski's OPS DIR point about IANA. The content appears to be fine, but there are some outdated (the biggest one is 5226 replaced by 8126), but its the IANA section which appears the most confusing. 7.1 OSPF Router Information (RI) Registry - appears fine 7.2 OSPF Tunnel Encapsulation Attribute Sub-TLV Registry This one defines the values being defined/allocated from "This Document" but in Section 5, each Sub-TLV is defined in other documents, so it's totally confusing. 2. It's not clear which of the following sub-TLVs are required/relevant/interconnected in the Encapsulation Capability TLV 0 Reserved This document 1 Encapsulation This document 2 Protocol Type This document 3 Endpoint This document 4 Color This document 5 Load-Balancing Block This document 6 IP QoS This document 7 UDP Destination Port This document The only hint is: Value (variable): Zero or more Tunnel Encapsulation Attribute Sub- TLVs as defined in Section 5. Zero? really, what's the point? Now, from an operational point of view, which sub-TLVs are required/make sense? Are some sub-TLVs irrelevant without others? Ex: Color without Encapsulation Could we have multiple identical sub-TLVs? Ex: Color ---------------------------------------------------------------------- COMMENT: ---------------------------------------------------------------------- - Sometimes you use "Encapsulation Capability TLV" (section 3), sometimes "The Tunnel Encapsulation Type Sub-TLV" I guess that: OLD: The Tunnel Encapsulation Type Sub-TLV is structured as follows: 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Tunnel Type (2 Octets) | Length (2 Octets) | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | | | Sub-TLVs | | | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ NEW: The Encapsulation Capability TLV is structured as follows: 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Tunnel Type (2 Octets) | Length (2 Octets) | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | | | Sub-TLVs | | | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ In section 7.1, should it be? OLD: Value TLV Name Reference ----- ------------------------------------ ------------- TBD1 Tunnel Capabilities This document NEW: Value TLV Name Reference ----- ------------------------------------ ------------- TBD1 Encapsulation Capabilities This document OR: Value TLV Name Reference ----- ------------------------------------ ------------- TBD1 Tunnel Encapsulation Capabilities This document - Then there is a discrepancy between Sub-TLVs and Value in the related text 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Tunnel Type (2 Octets) | Length (2 Octets) | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | | | Sub-TLVs | | | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Proposal: Sub-TLVs should be replaced by "Tunnel Encapsulation Attribute Sub-TLVs", and the following text updated: Value (variable): Zero or more Tunnel Encapsulation Attribute Sub- TLVs as defined in Section 5. - Then, reading section 5, I see yet another name: "OSPF Tunnel Encapsulation Attribute Sub-TLVs" Section 7.2. You should re-read the document to be consistent with your naming convention, in the text and in the IANA sections. From nobody Wed Aug 30 11:41:28 2017 Return-Path: X-Original-To: ospf@ietf.org Delivered-To: ospf@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 41B15132710; Wed, 30 Aug 2017 11:41:27 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Alvaro Retana To: "The IESG" Cc: draft-ietf-ospf-encapsulation-cap@ietf.org, Acee Lindem , ospf-chairs@ietf.org, ospf@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.59.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <150411848726.21615.10966448818481552380.idtracker@ietfa.amsl.com> Date: Wed, 30 Aug 2017 11:41:27 -0700 Archived-At: Subject: [OSPF] Alvaro Retana's No Objection on draft-ietf-ospf-encapsulation-cap-06: (with COMMENT) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 30 Aug 2017 18:41:27 -0000 Alvaro Retana has entered the following ballot position for draft-ietf-ospf-encapsulation-cap-06: No Objection When responding, please keep the subject line intact and reply to all email addresses included in the To and CC lines. (Feel free to cut this introductory paragraph, however.) Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html for more information about IESG DISCUSS and COMMENT positions. The document, along with other ballot positions, can be found here: https://datatracker.ietf.org/doc/draft-ietf-ospf-encapsulation-cap/ ---------------------------------------------------------------------- COMMENT: ---------------------------------------------------------------------- I think there's a normative conflict in these two pieces of text; the first one from Section 3, and the second from Section 5: ...If the Encapsulation Capability TLV appears more than once in an OSPF Router Information LSA, only the first occurrence MUST be processed and others MUST be ignored. ... Any unknown Sub-TLVs MUST be ignored and skipped upon receipt. If a Sub-TLV is invalid, its Tunnel Encapsulation TLV MUST be ignored and skipped. However, other Tunnel Encapsulation TLVs MUST be considered. The text from Section 3 says that only the first TLV [*] is to be processed -- but during such processing the receiver may find an invalid sub-TLV, which then mandates (in Section 5) for other TLVs to be considered. I think that the easy solution is to change the second "MUST" from Section 3 for a "SHOULD". It would be nice to describe what is an "invalid" sub-TLV, and that "invalid" is not the same as "unknown" (right?)...but that an "unknown [tunnel] types are to be ignored and skipped upon receipt", which would result in processing the second (if any) TLV. [*] Benoit's ballot pointed at the need for consistency in the names. From nobody Wed Aug 30 18:25:51 2017 Return-Path: X-Original-To: ospf@ietf.org Delivered-To: ospf@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id A09ED1204DA; Wed, 30 Aug 2017 18:25:43 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Adam Roach To: "The IESG" Cc: draft-ietf-ospf-encapsulation-cap@ietf.org, Acee Lindem , ospf-chairs@ietf.org, acee@cisco.com, ospf@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.59.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <150414274365.16920.7812788361564927226.idtracker@ietfa.amsl.com> Date: Wed, 30 Aug 2017 18:25:43 -0700 Archived-At: Subject: [OSPF] Adam Roach's No Objection on draft-ietf-ospf-encapsulation-cap-06: (with COMMENT) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 31 Aug 2017 01:25:44 -0000 Adam Roach has entered the following ballot position for draft-ietf-ospf-encapsulation-cap-06: No Objection When responding, please keep the subject line intact and reply to all email addresses included in the To and CC lines. (Feel free to cut this introductory paragraph, however.) Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html for more information about IESG DISCUSS and COMMENT positions. The document, along with other ballot positions, can be found here: https://datatracker.ietf.org/doc/draft-ietf-ospf-encapsulation-cap/ ---------------------------------------------------------------------- COMMENT: ---------------------------------------------------------------------- Section 5 specifies that unknown Sub-TLVs are ignored, but that known-and-invalid Sub-TLVs ruin the whole TLV. It seems a bit odd that a less capable implementation would be able to act on an announcement of a tunnel, yet a more capable one would not -- and that's the exact consequence of this arrangement. It would seem to make more sense to allow implementations to ignore invalid Sub-TLVs as if they didn't know them. Section 7.2 allocates the value 65535 twice (once as "Experimental", once as "Reserved"). I believe that this mechanism introduces an attack vector that is not discussed in the Security Considerations section. Specifically: because this allows routers to send OSPF announcements containing arbitrary tunnel termination addresses, it can cause other routers to attempt to connect to arbitrary third parties; and, since (by my admittedly shaky understanding of OSPF), I can distribute this information to a large community of routers with a single message by sending it to an RR, I can easily cause a *lot* of routers to potentially send such traffic. For example, if I were able to inject an announcement that has (a) a tunnel type of 13 ("MPLS in UDP Encapsulation"), (b) an "Endpoint Sub-TLV" of a victim web server that I know runs QUIC, and (c) a "UDP Destination Port" of 443, wouldn't this result in a potential DDoS of that web server? I don't know what the security model of OSPF is or how difficult it would be to mount this attack (or even how bad it would be compared to other attacks one might mount in OSPF), but it seems that a brief treatment of this -- along with any operational mitigation techniques that might be employed against it -- should be part of the Security Considerations. From nobody Wed Aug 30 19:50:00 2017 Return-Path: X-Original-To: ospf@ietf.org Delivered-To: ospf@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 8EFCA1204DA; Wed, 30 Aug 2017 19:49:59 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Suresh Krishnan To: "The IESG" Cc: draft-ietf-ospf-encapsulation-cap@ietf.org, Acee Lindem , ospf-chairs@ietf.org, acee@cisco.com, ospf@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.59.0 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <150414779958.16833.5322499494351720362.idtracker@ietfa.amsl.com> Date: Wed, 30 Aug 2017 19:49:59 -0700 Archived-At: Subject: [OSPF] Suresh Krishnan's Discuss on draft-ietf-ospf-encapsulation-cap-06: (with DISCUSS and COMMENT) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 31 Aug 2017 02:49:59 -0000 Suresh Krishnan has entered the following ballot position for draft-ietf-ospf-encapsulation-cap-06: Discuss When responding, please keep the subject line intact and reply to all email addresses included in the To and CC lines. (Feel free to cut this introductory paragraph, however.) Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html for more information about IESG DISCUSS and COMMENT positions. The document, along with other ballot positions, can be found here: https://datatracker.ietf.org/doc/draft-ietf-ospf-encapsulation-cap/ ---------------------------------------------------------------------- DISCUSS: ---------------------------------------------------------------------- * There seems to be an difference between this document's definition of sub-TLVs (with 2 octet types and lengths) and those of RFC5512 (with 1 octet types and lengths). So I am surprised to see the document point to the RFC5512 based TLVs for both syntax and semantics (Sections 5.1, 5.2, 5.3 ...) . Can you please explain how these sub-TLVs are encoded on the wire to be compatible with this draft? ---------------------------------------------------------------------- COMMENT: ---------------------------------------------------------------------- * IANA considerations Looks like the value 65535 is included both as experimental and reserved. Suggest changing OLD: 65500-65535 Experimental This document NEW: 65500-65534 Experimental This document From nobody Thu Aug 31 02:50:37 2017 Return-Path: X-Original-To: ospf@ietfa.amsl.com Delivered-To: ospf@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 4966413239C; Thu, 31 Aug 2017 02:50:29 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -14.519 X-Spam-Level: X-Spam-Status: No, score=-14.519 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, 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 Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with 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15.00.1263.000; Thu, 31 Aug 2017 05:50:23 -0400 From: "Acee Lindem (acee)" To: Suresh Krishnan , The IESG CC: "draft-ietf-ospf-encapsulation-cap@ietf.org" , "ospf-chairs@ietf.org" , "ospf@ietf.org" Thread-Topic: Suresh Krishnan's Discuss on draft-ietf-ospf-encapsulation-cap-06: (with DISCUSS and COMMENT) Thread-Index: AQHTIgPX4WyLR+mAKk63l1SCZ83jsKKeOQIA Date: Thu, 31 Aug 2017 09:50:23 +0000 Message-ID: References: <150414779958.16833.5322499494351720362.idtracker@ietfa.amsl.com> In-Reply-To: <150414779958.16833.5322499494351720362.idtracker@ietfa.amsl.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.116.152.196] Content-Type: multipart/alternative; boundary="_000_D5CD5190C53B6aceeciscocom_" MIME-Version: 1.0 Archived-At: Subject: Re: [OSPF] Suresh Krishnan's Discuss on draft-ietf-ospf-encapsulation-cap-06: (with DISCUSS and 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[45.19.110.76]) by smtp.gmail.com with ESMTPSA id k132sm3008163ywb.45.2017.08.31.07.06.05 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 31 Aug 2017 07:06:06 -0700 (PDT) From: Suresh Krishnan Message-Id: Content-Type: multipart/alternative; boundary="Apple-Mail=_50B163AD-F2F3-42F0-818F-BD22E45977CD" Mime-Version: 1.0 (Mac OS X Mail 10.3 \(3273\)) Date: Thu, 31 Aug 2017 10:06:04 -0400 In-Reply-To: Cc: The IESG , "draft-ietf-ospf-encapsulation-cap@ietf.org" , "ospf-chairs@ietf.org" , "ospf@ietf.org" To: "Acee Lindem (acee)" References: <150414779958.16833.5322499494351720362.idtracker@ietfa.amsl.com> X-Mailer: Apple Mail (2.3273) Archived-At: Subject: Re: [OSPF] Suresh Krishnan's Discuss on draft-ietf-ospf-encapsulation-cap-06: (with DISCUSS and COMMENT) X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 31 Aug 2017 14:06:14 -0000 --Apple-Mail=_50B163AD-F2F3-42F0-818F-BD22E45977CD Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Hi Acee, Thanks for the quick reply. Please find comments inline. > On Aug 31, 2017, at 5:50 AM, Acee Lindem (acee) = wrote: >=20 > Hi Suresh,=20 >=20 > On 8/30/17, 10:49 PM, "Suresh Krishnan" > wrote: >=20 > Suresh Krishnan has entered the following ballot position for > draft-ietf-ospf-encapsulation-cap-06: Discuss >=20 > When responding, please keep the subject line intact and reply to all > email addresses included in the To and CC lines. (Feel free to cut = this > introductory paragraph, however.) >=20 >=20 > Please refer to = https://www.ietf.org/iesg/statement/discuss-criteria.html = > for more information about IESG DISCUSS and COMMENT positions. >=20 >=20 > The document, along with other ballot positions, can be found here: > https://datatracker.ietf.org/doc/draft-ietf-ospf-encapsulation-cap/ = >=20 >=20 >=20 > ---------------------------------------------------------------------- > DISCUSS: > ---------------------------------------------------------------------- >=20 > * There seems to be an difference between this document's definition = of > sub-TLVs (with 2 octet types and lengths) and those of RFC5512 (with 1 = octet > types and lengths). So I am surprised to see the document point to the = RFC5512 > based TLVs for both syntax and semantics (Sections 5.1, 5.2, 5.3 ...) = . Can you > please explain how these sub-TLVs are encoded on the wire to be = compatible with > this draft? >=20 > I can answer this one since I specifically told the authors to use = this format. If you look at RFC 7770, you=E2=80=99ll see that all OSPF = Router Information (RI) LSA TLVs and Sub-TLVs have 2 octet types and = lengths.=20 >=20 > 2.3. OSPF Router Information LSA TLV Format >=20 > The format of the TLVs within the body of an RI LSA is the same as > the format used by the Traffic Engineering Extensions to OSPF [TE]. > The LSA payload consists of one or more nested Type/Length/Value > (TLV) triplets. The format of each TLV is: >=20 > 0 1 2 3 > 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > | Type | Length | > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ > | Value... | > +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ >=20 > Figure 3. TLV Format >=20 >=20 > Additionally, if you look at = https://www.ietf.org/id/draft-ietf-idr-tunnel-encaps-07.txt = (which = obsoletes RFC 5512), you=E2=80=99ll see that the 1 octet length with = insufficient.=20 >=20 > Each sub-TLV consists of three fields: a 1-octet type, a 1-octet or > 2-octet length field (depending on the type), and zero or more = octets > of value. A sub-TLV is structured as shown in Figure 2: >=20 > +-----------------------------------+ > | Sub-TLV Type (1 Octet) | > +-----------------------------------+ > | Sub-TLV Length (1 or 2 Octets)| > +-----------------------------------+ > | Sub-TLV Value (Variable) | > | | > +-----------------------------------+ >=20 > Figure 2: Tunnel Encapsulation Sub-TLV Format >=20 > o Sub-TLV Type (1 octet): each sub-TLV type defines a certain > property about the tunnel TLV that contains this sub-TLV. >=20 >=20 >=20 >=20 >=20 > Rosen, et al. Expires January 18, 2018 [Page = 7] > =0C > Internet-Draft Tunnel Encapsulation Attribute July = 2017 >=20 >=20 > o Sub-TLV Length (1 or 2 octets): the total number of octets of = the > sub-TLV value field. The Sub-TLV Length field contains 1 octet = if > the Sub-TLV Type field contains a value in the range from 1-127. > The Sub-TLV Length field contains two octets if the Sub-TLV Type > field contains a value in the range from 128-254. >=20 > o Sub-TLV Value (variable): encodings of the value field depend on > the sub-TLV type as enumerated above. The following = sub-sections > define the encoding in detail. I did read the draft-ietf-idr-tunnel-encaps-07 draft (following it from = the references) and I do understand why the document made the switch to = 2 octets for the length. The part that threw me off is that this = document (ospf-encapsulation) mandates *2 Octet* sub-TLV types which are = not even mentioned in draft-ietf-idr-tunnel-encaps-07. Similarly this = document mandates 2 octet lengths without nuancing the length based on = sub-TLV type (>127 or not). And then it states that the syntax is = specified in the documents that use 1 octet types. This is the = discrepancy that needs addressing. Thanks Suresh --Apple-Mail=_50B163AD-F2F3-42F0-818F-BD22E45977CD Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8 Hi Acee,
  Thanks for the quick reply. = Please find comments inline.

On = Aug 31, 2017, at 5:50 AM, Acee Lindem (acee) <acee@cisco.com> = wrote:

Hi Suresh, 

On 8/30/17, 10:49 PM, "Suresh Krishnan" <suresh.krishnan@gmail.com> wrote:

Suresh Krishnan has entered the following ballot = position for
draft-ietf-ospf-encapsulation-cap-06: Discuss

When responding, please keep the subject line intact and = reply to all
email addresses included in the To and CC lines. (Feel = free to cut this
introductory paragraph, however.)


Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html
for more information about IESG DISCUSS and COMMENT = positions.


The document, along with other ballot positions, can be = found here:
https://datatracker.ietf.org/doc/draft-ietf-ospf-encapsulation-= cap/



---------------------------------------------------------------= -------
DISCUSS:
---------------------------------------------------------------= -------

* There seems to be an difference between this = document's definition of
sub-TLVs (with 2 octet types and lengths) and those of = RFC5512 (with 1 octet
types and lengths). So I am surprised to see the = document point to the RFC5512
based TLVs for both syntax and semantics (Sections 5.1, = 5.2, 5.3 ...) . Can you
please explain how these sub-TLVs are encoded on the = wire to be compatible with
this draft?

I can answer this one since I specifically told the authors to use this = format. If you look at RFC 7770, you=E2=80=99ll see that all OSPF Router = Information (RI) LSA TLVs and Sub-TLVs have 2 octet types and = lengths. 

2.3. OSPF Router = Information LSA TLV Format

The format of the TLVs = within the body of an RI LSA is the same as
the format used by the = Traffic Engineering Extensions to OSPF [TE].
The LSA payload = consists of one or more nested Type/Length/Value
(TLV) triplets. The = format of each TLV is:

 0 1 2 = 3
 0 1 2 3 4 5 6 7 = 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+= -+
| Type | Length = |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+= -+
| Value... = |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+= -+

Figure 3. TLV = Format


Additionally, if you = look at https://www.ietf.org/id/draft-ietf-idr-tunnel-encaps-07.txt=  (which obsoletes RFC 5512), you=E2=80=99ll see that the 1 = octet length with insufficient. 

   Each sub-TLV consists of three fields: a 1-octet =
type, a 1-octet or
   2-octet length field (depending on the type), and zero or more octets
   of value.  A sub-TLV is structured as shown in Figure 2:

                   +-----------------------------------+
                   |      Sub-TLV Type (1 Octet)       |
                   +-----------------------------------+
                   |     Sub-TLV Length (1 or 2 Octets)|
                   +-----------------------------------+
                   |     Sub-TLV Value (Variable)      |
                   |                                   |
                   +-----------------------------------+

               Figure 2: Tunnel Encapsulation Sub-TLV Format

   o  Sub-TLV Type (1 octet): each sub-TLV type defines a certain
      property about the tunnel TLV that contains this sub-TLV.





Rosen, et al.           Expires January 18, 2018                [Page 7]
=0C
Internet-Draft       Tunnel Encapsulation Attribute            July 2017


   o  Sub-TLV Length (1 or 2 octets): the total number of octets of the
      sub-TLV value field.  The Sub-TLV Length field contains 1 octet if
      the Sub-TLV Type field contains a value in the range from 1-127.
      The Sub-TLV Length field contains two octets if the Sub-TLV Type
      field contains a value in the range from 128-254.

   o  Sub-TLV Value (variable): encodings of the value field depend on
      the sub-TLV type as enumerated above.  The following sub-sections
      define the encoding in =
detail.
I did read = the draft-ietf-idr-tunnel-encaps-07 draft (following it from the = references) and I do understand why the document made the switch to 2 = octets for the length. The part that threw me off is that this document = (ospf-encapsulation) mandates *2 Octet* sub-TLV types which are not even = mentioned in draft-ietf-idr-tunnel-encaps-07. Similarly this document = mandates 2 octet lengths without nuancing the length based on sub-TLV = type (>127 or not). And then it states that the syntax is specified = in the documents that use 1 octet types. This is the discrepancy that = needs addressing.

Thanks
Suresh

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