comments on draft-bonica-6man-comp-rtg-hdr (Re: Adoption Call for "The IPv6 Compact Routing Header (CRH)")
神明達哉 <jinmei@wide.ad.jp> Fri, 29 May 2020 18:27 UTC
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From: 神明達哉 <jinmei@wide.ad.jp>
Date: Fri, 29 May 2020 11:27:37 -0700
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Subject: comments on draft-bonica-6man-comp-rtg-hdr (Re: Adoption Call for "The IPv6 Compact Routing Header (CRH)")
To: Bob Hinden <bob.hinden@gmail.com>
Cc: IPv6 List <ipv6@ietf.org>
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At Fri, 15 May 2020 15:13:55 -0700, Bob Hinden <bob.hinden@gmail.com> wrote: > Title: The IPv6 Compact Routing Header (CRH) > Authors: R. Bonica, Y. Kamite, T. Niwa, A. Alston, L. Jalil > File Name: draft-bonica-6man-comp-rtg-hdr-21 > Document date: 2020-05-14 > > https://tools.ietf.org/html/draft-bonica-6man-comp-rtg-hdr > > as a working group item. Substantive comments regarding adopting this document should be directed to the mailing list. Editorial suggestions can be sent to the authors. I have no strong opinion on the adoption, while I didn't see any particular reason not for adopting it in the sense of moving the editorial ownership from individual authors to the wg: the topic seems relevant to this wg; it's generally well written and seems to be ready for further detailed discussion without wasting others' time for, e.g., just to understand the draft text. I don't know what else is needed for adoption, but my understanding of the bar for adoption isn't that high and this draft seems to clear it. I've read draft-bonica-6man-comp-rtg-hdr-22 (not 21), mostly out of curiosity. I'm not an expert in this technology area or am not particularly interested in it, but as email messages about the draft and this adoption call consumed 99% of my inbox this week (most of which seemed mere noise to me and I simply archived them without reading) I was curious about what was happening. Here are some comments about that version from such a novice observer (please also forgive me if I'm repeating points already made by someone - as I said I've lazily ignored most of the messages regarding this call): - General In general, I'd like to understand "why we need this" for any new protocol. The motivation described in Section 1 is somewhat understandable, but if one major purpose is to realize source routing "within a network domain", it would be natural to ask why SRv6 isn't enough (I'd also refer to Section 3.2 of RFC1958). Perhaps there's a specific reason for the author not to discuss it within the draft (to avoid distraction?), but for someone without all background details that would be really useful. For example, if CRH is intended to implement a 'source routing within a network domain' while being more compatible with the basic IPv6 protocol (like not relying on insertion or deletion of the CRH in intermediate nodes) that would make it look more persuading to someone like me, who is more concerned about the protocols affected by the new proposal than the new protocol itself. But such points aren't discussed explicitly or can't be figured out (to me) from the protocol description. - Section 1 o Is designed to operate within a network domain. (See Section 9). The term "a network domain" is vague to me. Can't it be more specific? - Section 1 o Because Path MTU Discovery (PMTUD) [RFC8201] is not entirely reliable, many IPv6 hosts refrain from sending packets larger than the IPv6 minimum link MTU (i.e., 1280 bytes). Is this true? I thought TCP (over IPv6) applications still largely use larger packets (implicitly relying on PMTUD) while it's probably pretty common for UDP applications to limit their packets to the minimum MTU size. - Section 5 o Submit the packet and optional parameters to the IPv6 module. I can guess what "IPv6 module" means, but it would be more helpful if it's defined explicitly earlier in the draft (maybe it could have a "Terminology" section). - Section 9 I suspect anyone remembering the type 0 RH fiasco will wonder whether CRH is safe in that sense. So I'd suggest discussing that more explicitly with referring to RFC5095. -- JINMEI, Tatuya
- RE: Adoption Call for "The IPv6 Compact Routing H… Ketan Talaulikar (ketant)
- Re: Adoption Call for "The IPv6 Compact Routing H… Brian E Carpenter
- RE: Adoption Call for "The IPv6 Compact Routing H… Ketan Talaulikar (ketant)
- RE: Adoption Call for "The IPv6 Compact Routing H… Ketan Talaulikar (ketant)
- Re: Adoption Call for "The IPv6 Compact Routing H… Xing Li
- Adoption Call for "The IPv6 Compact Routing Heade… Bob Hinden
- Re: Adoption Call for "The IPv6 Compact Routing H… Mark Smith
- Re: Adoption Call for "The IPv6 Compact Routing H… Andrew Alston
- Re: Adoption Call for "The IPv6 Compact Routing H… Joel M. Halpern
- RE: Adoption Call for "The IPv6 Compact Routing H… Ron Bonica
- Re: Adoption Call for "The IPv6 Compact Routing H… Xing Li
- Re: Adoption Call for "The IPv6 Compact Routing H… Tom Herbert
- Re: Adoption Call for "The IPv6 Compact Routing H… Brian E Carpenter
- RE: Adoption Call for "The IPv6 Compact Routing H… Xiejingrong (Jingrong)
- Re: Adoption Call for "The IPv6 Compact Routing H… Mark Smith
- RE: Adoption Call for "The IPv6 Compact Routing H… Ron Bonica
- Re: Adoption Call for "The IPv6 Compact Routing H… Krzysztof Szarkowicz
- Re: Adoption Call for "The IPv6 Compact Routing H… Melchior Aelmans
- RE: Adoption Call for "The IPv6 Compact Routing H… Xiejingrong (Jingrong)
- RE: Adoption Call for "The IPv6 Compact Routing H… Xiejingrong (Jingrong)
- Re: Adoption Call for "The IPv6 Compact Routing H… Nick Hilliard
- RE: Adoption Call for "The IPv6 Compact Routing H… Jeffrey (Zhaohui) Zhang
- Re: Adoption Call for "The IPv6 Compact Routing H… Darren Dukes (ddukes)
- Re: Adoption Call for "The IPv6 Compact Routing H… Andrew Alston
- Re: Adoption Call for "The IPv6 Compact Routing H… Tony Przygienda
- RE: Adoption Call for "The IPv6 Compact Routing H… Vishal Singh
- Re: Adoption Call for "The IPv6 Compact Routing H… John Scudder
- Re: Adoption Call for "The IPv6 Compact Routing H… Greg Mirsky
- Re: Adoption Call for "The IPv6 Compact Routing H… Greg Mirsky
- Re: Adoption Call for "The IPv6 Compact Routing H… Gyan Mishra
- Re: Adoption Call for "The IPv6 Compact Routing H… Mark Smith
- Re: Adoption Call for "The IPv6 Compact Routing H… Brian E Carpenter
- Re: Adoption Call for "The IPv6 Compact Routing H… Michael Richardson
- RE: Adoption Call for "The IPv6 Compact Routing H… Ron Bonica
- Re: Adoption Call for "The IPv6 Compact Routing H… Greg Mirsky
- Re: Adoption Call for "The IPv6 Compact Routing H… Darren Dukes (ddukes)
- Re: Adoption Call for "The IPv6 Compact Routing H… Andrew Alston
- RE: Adoption Call for "The IPv6 Compact Routing H… Pascal Thubert (pthubert)
- Re: Adoption Call for "The IPv6 Compact Routing H… Wen Lin
- Re: Adoption Call for "The IPv6 Compact Routing H… Darren Dukes (ddukes)
- RE: Adoption Call for "The IPv6 Compact Routing H… Ketan Talaulikar (ketant)
- FW: Adoption Call for "The IPv6 Compact Routing H… Ketan Talaulikar (ketant)
- Re: Adoption Call for "The IPv6 Compact Routing H… Zafar Ali (zali)
- Re: Adoption Call for "The IPv6 Compact Routing H… Naveen Kottapalli
- Re: Adoption Call for "The IPv6 Compact Routing H… John Scudder
- Re: Adoption Call for "The IPv6 Compact Routing H… Brian E Carpenter
- RE: Adoption Call for "The IPv6 Compact Routing H… Pablo Camarillo (pcamaril)
- RE: Adoption Call for "The IPv6 Compact Routing H… Andrew Alston
- Re: Adoption Call for "The IPv6 Compact Routing H… Eric Vyncke (evyncke)
- Re: Adoption Call for "The IPv6 Compact Routing H… John Scudder
- RE: Adoption Call for "The IPv6 Compact Routing H… Parag Kaneriya
- RE: Adoption Call for "The IPv6 Compact Routing H… Ketan Talaulikar (ketant)
- Reply: Re: Adoption Call for "The IPv6 Compact Ro… Chengli (Cheng Li)
- Re: Adoption Call for "The IPv6 Compact Routing H… John Scudder
- RE: Reply: Re: Adoption Call for "The IPv6 Compac… Ron Bonica
- 答复: Adoption Call for "The IPv6 Compact Routing H… Weiqiang Cheng
- RE: Adoption Call for "The IPv6 Compact Routing H… Huzhibo
- G-SRv6 (was Re: Adoption Call for "The IPv6 Compa… Tom Herbert
- RE: G-SRv6 (was Re: Adoption Call for "The IPv6 C… Huzhibo
- Re: Adoption Call for "The IPv6 Compact Routing H… 刘毅松
- 回复: Re: Adoption Call for "The IPv6 Compact Routi… duzongpeng@foxmail.com
- Re: Adoption Call for "The IPv6 Compact Routing H… Srihari Sangli
- 回复: 回复: Adoption Call for "The IPv6 Compact Routi… Peng Liu
- Re: Adoption Call for "The IPv6 Compact Routing H… stefano previdi
- Re: G-SRv6 (was Re: Adoption Call for "The IPv6 C… Tom Herbert
- Re: Adoption Call for "The IPv6 Compact Routing H… Henderickx, Wim (Nokia - BE/Antwerp)
- RE: Adoption Call for "The IPv6 Compact Routing H… Ron Bonica
- Re: Adoption Call for "The IPv6 Compact Routing H… Ahmed Abdelsalam
- Re: Adoption Call for "The IPv6 Compact Routing H… stefano previdi
- Re: Adoption Call for "The IPv6 Compact Routing H… Greg Mirsky
- Re: Adoption Call for "The IPv6 Compact Routing H… Gyan Mishra
- RE: Adoption Call for "The IPv6 Compact Routing H… Mach Chen
- RE: Adoption Call for "The IPv6 Compact Routing H… Ron Bonica
- Re: Adoption Call for "The IPv6 Compact Routing H… Henderickx, Wim (Nokia - BE/Antwerp)
- Re: Adoption Call for "The IPv6 Compact Routing H… Henderickx, Wim (Nokia - BE/Antwerp)
- Re: Adoption Call for "The IPv6 Compact Routing H… Gyan Mishra
- RE: Adoption Call for "The IPv6 Compact Routing H… Mach Chen
- Re: Adoption Call for "The IPv6 Compact Routing H… Gyan Mishra
- RE: Adoption Call for "The IPv6 Compact Routing H… Mach Chen
- Re: Adoption Call for "The IPv6 Compact Routing H… Henderickx, Wim (Nokia - BE/Antwerp)
- Re: Adoption Call for "The IPv6 Compact Routing H… xiechf@chinatelecom.cn
- RE: Adoption Call for "The IPv6 Compact Routing H… Dongjie (Jimmy)
- Re: Adoption Call for "The IPv6 Compact Routing H… Reji Thomas
- Re: Adoption Call for "The IPv6 Compact Routing H… Robert Raszuk
- Re: Adoption Call for "The IPv6 Compact Routing H… Antonio Cianfrani
- Re: Adoption Call for "The IPv6 Compact Routing H… Robert Raszuk
- Re: Adoption Call for "The IPv6 Compact Routing H… Rabadan, Jorge (Nokia - US/Mountain View)
- RE: Adoption Call for "The IPv6 Compact Routing H… Van De Velde, Gunter (Nokia - BE/Antwerp)
- RE: Adoption Call for "The IPv6 Compact Routing H… Xiejingrong (Jingrong)
- Re: Adoption Call for "The IPv6 Compact Routing H… Srihari Sangli
- RE: Adoption Call for "The IPv6 Compact Routing H… Ron Bonica
- RE: Adoption Call for "The IPv6 Compact Routing H… Templin (US), Fred L
- Re: Adoption Call for "The IPv6 Compact Routing H… Henderickx, Wim (Nokia - BE/Antwerp)
- Re: Adoption Call for "The IPv6 Compact Routing H… Greg Mirsky
- Re: Adoption Call for "The IPv6 Compact Routing H… Greg Mirsky
- Re: Adoption Call for "The IPv6 Compact Routing H… Tom Herbert
- Re: Adoption Call for "The IPv6 Compact Routing H… Greg Mirsky
- Re: Adoption Call for "The IPv6 Compact Routing H… Tom Herbert
- Re: Adoption Call for "The IPv6 Compact Routing H… Darren Dukes (ddukes)
- Re: Adoption Call for "The IPv6 Compact Routing H… Martin Horneffer
- Re: Adoption Call for "The IPv6 Compact Routing H… Greg Mirsky
- Re: Adoption Call for "The IPv6 Compact Routing H… Tetsuya Murakami
- Re: Adoption Call for "The IPv6 Compact Routing H… Kalyani Rajaraman
- RE: Adoption Call for "The IPv6 Compact Routing H… Michael McBride
- Re: Adoption Call for "The IPv6 Compact Routing H… Tom Herbert
- Re: Adoption Call for "The IPv6 Compact Routing H… Ran Pang(联通集团联通网络技术研究 院本部)
- Re: Adoption Call for "The IPv6 Compact Routing H… Miya Kohno
- Re: Adoption Call for "The IPv6 Compact Routing H… Kentaro Ebisawa
- RE: Adoption Call for "The IPv6 Compact Routing H… licong@chinatelecom.cn
- Re: Adoption Call for "The IPv6 Compact Routing H… Fernando Gont
- 答复: Adoption Call for "The IPv6 Compact Routing H… qinfengwei
- RE: Adoption Call for "The IPv6 Compact Routing H… Ketan Talaulikar (ketant)
- Re: Adoption Call for "The IPv6 Compact Routing H… Satoru Matsushima
- RE: Adoption Call for "The IPv6 Compact Routing H… Voyer, Daniel
- Re: Adoption Call for "The IPv6 Compact Routing H… Miya Kohno
- Re: Adoption Call for "The IPv6 Compact Routing H… Joel M. Halpern
- Re: Adoption Call for "The IPv6 Compact Routing H… Tom Herbert
- Re: Adoption Call for "The IPv6 Compact Routing H… Greg Mirsky
- RE: Adoption Call for "The IPv6 Compact Routing H… Templin (US), Fred L
- Re: Adoption Call for "The IPv6 Compact Routing H… Tom Herbert
- Re: Adoption Call for "The IPv6 Compact Routing H… Greg Mirsky
- Re: Adoption Call for "The IPv6 Compact Routing H… Tom Herbert
- Re: Adoption Call for "The IPv6 Compact Routing H… Kamran Raza (skraza)
- Re: Adoption Call for "The IPv6 Compact Routing H… Fernando Gont
- Re: Adoption Call for "The IPv6 Compact Routing H… Jakob Heitz (jheitz)
- RE: Adoption Call for "The IPv6 Compact Routing H… Wang, Weibin (NSB - CN/Shanghai)
- Re: Re: Adoption Call for "The IPv6 Compact Routi… 이기훈/책임
- Re: Adoption Call for "The IPv6 Compact Routing H… Swadesh Agrawal (swaagraw)
- Re: Adoption Call for "The IPv6 Compact Routing H… Gyan Mishra
- RE: Re: Adoption Call for "The IPv6 Compact Routi… Chengli (Cheng Li)
- RE: Adoption Call for "The IPv6 Compact Routing H… Chengli (Cheng Li)
- Re: Re: Adoption Call for "The IPv6 Compact Routi… Rakesh Gandhi
- Re: [spring] FW: Adoption Call for "The IPv6 Comp… Dirk Steinberg
- comments on draft-bonica-6man-comp-rtg-hdr (Re: A… 神明達哉
- Re: Adoption Call for "The IPv6 Compact Routing H… Francois Clad (fclad)
- Compatibility with SRH requirement (was Re: Adopt… Tom Herbert
- Conclusion of the Adoption Call for "The IPv6 Com… Bob Hinden
- Re: Adoption Call for "The IPv6 Compact Routing H… Zafar Ali (zali)
- RE: Compatibility with SRH requirement (was Re: A… James Guichard
- Re: Compatibility with SRH requirement (was Re: A… Greg Mirsky
- Re: Compatibility with SRH requirement (was Re: A… Tom Herbert
- RE: Compatibility with SRH requirement (was Re: A… James Guichard
- Re: Adoption Call for "The IPv6 Compact Routing H… Richard Vallee (rvallee)
- Re: Adoption Call for "The IPv6 Compact Routing H… Kris Michielsen
- Re: Compatibility with SRH requirement (was Re: A… Tom Herbert
- Re: Compatibility with SRH requirement (was Re: A… Robert Raszuk
- RE: Compatibility with SRH requirement (was Re: A… James Guichard
- Re: Compatibility with SRH requirement (was Re: A… Tom Herbert
- RE: Compatibility with SRH requirement (was Re: A… James Guichard
- Re: Compatibility with SRH requirement (was Re: A… John Scudder
- Re: Compatibility with SRH requirement (was Re: A… Nick Hilliard
- RE: Compatibility with SRH requirement (was Re: A… James Guichard
- RE: Compatibility with SRH requirement (was Re: A… Adrian Farrel
- RE: Compatibility with SRH requirement (was Re: A… James Guichard
- Re: Compatibility with SRH requirement (was Re: A… Tom Herbert
- Re: Adoption Call for "The IPv6 Compact Routing H… Jen Linkova
- Re: Conclusion of the Adoption Call for "The IPv6… Erik Kline
- Followup Conclusion of the Adoption Call for "The… Bob Hinden