Re: [spring] Request to close the LC and move forward//RE: WGLC - draft-ietf-spring-srv6-network-programming
Fernando Gont <fgont@si6networks.com> Thu, 27 February 2020 08:06 UTC
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Subject: Re: [spring] Request to close the LC and move forward//RE: WGLC -
draft-ietf-spring-srv6-network-programming
To: Dirk Steinberg <dirk@lapishills.com>
Cc: "Eric Vyncke (evyncke)" <evyncke=40cisco.com@dmarc.ietf.org>,
Warren Kumari <warren@kumari.net>, John Leddy <john@leddy.net>,
SPRING WG List <spring@ietf.org>, "6man@ietf.org" <6man@ietf.org>,
Bob Hinden <bob.hinden@gmail.com>,
"Zafar Ali (zali)" <zali=40cisco.com@dmarc.ietf.org>
References: <F88E3F76-DD4B-4807-A458-85FABFF20D96@gmail.com>
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<8abfd5a1-e806-3598-c389-8214b3d09447@si6networks.com>
<CAFqxzqZgL_pg6hgW0dGbCzyjUzJdAVkfyicwTiac+8kwGxsuVw@mail.gmail.com>
From: Fernando Gont <fgont@si6networks.com>
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Date: Thu, 27 Feb 2020 05:05:30 -0300
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On 27/2/20 04:51, Dirk Steinberg wrote: > > > On Thu, Feb 27, 2020 at 1:45 AM Fernando Gont <fgont@si6networks.com > <mailto:fgont@si6networks.com>> wrote: > > Hello, Eric, > > On 26/2/20 20:18, Eric Vyncke (evyncke) wrote: > > Writing this without any hat, > > > > Please note that on the logical side, it still have to be > "proven" that this idea is strictly forbidden by RFC 8200. > > Here's the proof part: > > 1) Isn't IPv6 end to end? > > 2) How do core components of IPv6, such as AH and PMTUD work in the > present of intermediate nodes that can add and/or remove arbitrary > extension headers? > > It should be clear from the above that EH insertion/deletion is > forbidden. > > > As I already explained to you this is not true. > The wording of RFC8200 clearly allows this. > The node addresses by the DA of the packet can do this. > I understand that you would like to modify the wording of > RFC8200 to make your point true but it simply is not. > Repeating a false statement does not make it true. Please answer the questions I've asked, and you'll get the response: IPv6 is end to end, and does not support header insertion or deletion en-route to the final destination. It would break core IPv6 components such as PMTUD and AH. If you find that the wording in RFC8200 should be improved, so be it: we already have to improve it from RFC2460, and it seems you still trying to find ways to circumvent the spec. If the spec warrants a *clarification*, so be it: we already did it from RFC2460, we did it for RFC8200 for the fragmentation part, and we may also have to do it for EH processing (and not only for this issue). I have given it a shot here: https://www.rfc-editor.org/errata/eid5933 That's what erratas are for. Thanks, -- Fernando Gont SI6 Networks e-mail: fgont@si6networks.com PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492
- Request to close the LC and move forward//RE: WGL… Lizhenbin
- RE: Request to close the LC and move forward//RE:… Dongjie (Jimmy)
- RE: Request to close the LC and move forward//RE:… Huzhibo
- Re: [spring] Request to close the LC and move for… xiechf@chinatelecom.cn
- RE: Request to close the LC and move forward//RE:… Gengxuesong (Geng Xuesong)
- RE: Request to close the LC and move forward//RE:… Chengli (Cheng Li)
- Re: Re: [spring] Request to close the LC and move… liupengyjy@outlook.com
- RE: Request to close the LC and move forward//RE:… bruno.decraene
- Re: Request to close the LC and move forward//RE:… Fernando Gont
- RE: Request to close the LC and move forward//RE:… bruno.decraene
- Re: [spring] Request to close the LC and move for… Zafar Ali (zali)
- Re: [spring] Request to close the LC and move for… Dirk Steinberg
- Re: [spring] Request to close the LC and move for… Fernando Gont
- Re: [spring] Request to close the LC and move for… Bob Hinden
- Re: [spring] Request to close the LC and move for… John Leddy
- Re: [spring] Request to close the LC and move for… Warren Kumari
- Re: [spring] Request to close the LC and move for… Mike Simpson
- Re: Request to close the LC and move forward//RE:… 神明達哉
- Re: [spring] Request to close the LC and move for… john leddy.net
- Re: [spring] Request to close the LC and move for… Fernando Gont
- Re: Request to close the LC and move forward//RE:… Brian E Carpenter
- Re: [spring] Request to close the LC and move for… Mark Smith
- RE: [spring] Request to close the LC and move for… Voyer, Daniel
- Re: [spring] Request to close the LC and move for… Bob Hinden
- Re: [spring] Request to close the LC and move for… Satoru Matsushima
- Re: [spring] Request to close the LC and move for… Eric Vyncke (evyncke)
- Re: [spring] Request to close the LC and move for… Gaurav Dawra
- Re: [spring] Request to close the LC and move for… Fernando Gont
- Re: [spring] Request to close the LC and move for… Fernando Gont
- Re: [spring] Request to close the LC and move for… Stefano Salsano
- RE: [spring] Request to close the LC and move for… Weiqiang Cheng
- Re: [spring] Request to close the LC and move for… Brian E Carpenter
- Re: [spring] Request to close the LC and move for… =?utf-8?B?WWlzb25nIExpdQ==?=
- Re: [spring] Request to close the LC and move for… Stefano Salsano
- Re: [spring] Request to close the LC and move for… Brian E Carpenter
- Re: Re: [spring] Request to close the LC and move… li_zhenqiang@hotmail.com
- Re: [spring] Request to close the LC and move for… Bernier, Daniel
- Re: [spring] Request to close the LC and move for… Ahmed Bashandy
- RE: Re: [spring] Request to close the LC and move… Ketan Talaulikar (ketant)
- Re: [spring] Request to close the LC and move for… Dirk Steinberg
- Re: [spring] Request to close the LC and move for… Fernando Gont
- Re: [spring] Request to close the LC and move for… Fernando Gont
- Re: [spring] Request to close the LC and move for… Mark Smith
- RE: [spring] Request to close the LC and move for… bruno.decraene
- Re: [spring] Request to close the LC and move for… Fernando Gont
- RE: Request to close the LC and move forward//RE:… Maojianwei (Mao)
- Re: Request to close the LC and move forward//RE:… Ted Lemon
- RE: Request to close the LC and move forward//RE:… Andrew Alston
- Re: Request to close the LC and move forward//RE:… Fernando Gont
- Re: [spring] Request to close the LC and move for… Stefano Salsano
- RE: [spring] Request to close the LC and move for… bruno.decraene
- RE: Request to close the LC and move forward//RE:… Xiejingrong (Jingrong)
- RE: Request to close the LC and move forward//RE:… Voyer, Daniel
- RE: Request to close the LC and move forward//RE:… Voyer, Daniel
- Re: Request to close the LC and move forward//RE:… Ted Lemon
- Re: Request to close the LC and move forward//RE:… Ted Lemon
- Re: [spring] Request to close the LC and move for… Stefano Salsano
- RE: [spring] Request to close the LC and move for… Alexander Vainshtein
- RE: [spring] Request to close the LC and move for… Andrew Alston
- Re: [spring] Request to close the LC and move for… Joel M. Halpern
- Re: Request to close the LC and move forward//RE:… Nick Hilliard
- Re: [spring] Request to close the LC and move for… John Scudder
- Re: Request to close the LC and move forward//RE:… Stefano Salsano
- RE: [spring] Request to close the LC and move for… James Guichard
- Re: [spring] Request to close the LC and move for… Warren Kumari
- Re: [spring] Request to close the LC and move for… Robert Raszuk
- Re: [spring] Request to close the LC and move for… Ted Lemon
- Re: [spring] Request to close the LC and move for… Joel M. Halpern
- Re: [spring] Request to close the LC and move for… Ted Lemon
- Re: [spring] Request to close the LC and move for… Joel M. Halpern
- Re: [spring] Request to close the LC and move for… Warren Kumari
- Re: Request to close the LC and move forward//RE:… 神明達哉
- Re: Request to close the LC and move forward//RE:… Pablo Camarillo (pcamaril)
- Re: Request to close the LC and move forward//RE:… Pablo Camarillo (pcamaril)
- Re: Request to close the LC and move forward//RE:… Ted Lemon
- Re: [spring] Request to close the LC and move for… Pablo Camarillo (pcamaril)
- Re: Request to close the LC and move forward//RE:… Pablo Camarillo (pcamaril)
- RE: [spring] Request to close the LC and move for… Ron Bonica
- Re: [spring] Request to close the LC and move for… Sander Steffann
- Re: [spring] Request to close the LC and move for… Fernando Gont
- Re: [spring] Request to close the LC and move for… 神明達哉
- Re: [spring] Request to close the LC and move for… Suresh Krishnan
- Re: [spring] Request to close the LC and move for… Fernando Gont
- Re: [spring] Request to close the LC and move for… Mark Smith
- RE: [spring] Request to close the LC and move for… Ron Bonica
- Re: Request to close the LC and move forward//RE:… Darren Dukes (ddukes)
- RE: [spring] Request to close the LC and move for… Ron Bonica
- Re: [spring] Request to close the LC and move for… Keyur Patel
- Re: Request to close the LC and move forward//RE:… 神明達哉
- "penultimate segment" [Re: [spring] Request to cl… Brian E Carpenter
- Re: Request to close the LC and move forward//RE:… Brian E Carpenter
- Re: "penultimate segment" [Re: [spring] Request t… Stefano Salsano
- Re: "penultimate segment" [Re: [spring] Request t… Brian E Carpenter
- RE: "penultimate segment" [Re: [spring] Request t… Ketan Talaulikar (ketant)
- RE: Request to close the LC and move forward//RE:… Ketan Talaulikar (ketant)
- 答复: Request to close the LC and move forward//RE:… huruizhao
- Re: Request to close the LC and move forward//RE:… Tim Chown
- 答复: [spring] Request to close the LC and move for… Chenxia (D)
- Re: [spring] Request to close the LC and move for… Darren Dukes (ddukes)
- RE: [spring] Request to close the LC and move for… Alexander Vainshtein
- Re: [spring] Request to close the LC and move for… Brian E Carpenter
- RE: [spring] Request to close the LC and move for… Alexander Vainshtein
- Re: [spring] Request to close the LC and move for… Darren Dukes (ddukes)
- Re: [spring] Request to close the LC and move for… Alexander Vainshtein