Re: [tcpm] New Version Notification for draft-touch-tcpm-tcp-edo-01.txt
Bob Briscoe <bob.briscoe@bt.com> Fri, 23 May 2014 10:03 UTC
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Date: Fri, 23 May 2014 11:03:25 +0100
To: Joe Touch <touch@isi.edu>
From: Bob Briscoe <bob.briscoe@bt.com>
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References: <20140425221257.12559.43206.idtracker@ietfa.amsl.com> <2586_1398464386_535ADF82_2586_915_1_535ADF56.9050106@isi.edu> <CF8D8E25-E435-4199-8FD6-3F7066447292@iki.fi> <5363AF84.8090701@mti-systems.com> <5363B397.8090009@isi.edu> <CAO249yeyr5q21-=e6p5azwULOh1_jUsniZ6YPcDYd69av8MMYw@mail.gmail.com> <DCC98F94-EA74-4AAA-94AE-E399A405AF13@isi.edu> <655C07320163294895BBADA28372AF5D2CFE36@FR712WXCHMBA15.zeu.alcatel-lucent.com> <20140503122950.GM44329@verdi> <655C07320163294895BBADA28372AF5D2D009E@FR712WXCHMBA15.zeu.alcatel-lucent.com> <201405221710.s4MHAY4S002037@bagheera.jungle.bt.co.uk> <537E3ACD.5000308@isi.edu> <537E48CE.8040704@mti-systems.com> <537E66A7.4080907@isi.edu>
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Subject: Re: [tcpm] New Version Notification for draft-touch-tcpm-tcp-edo-01.txt
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Joe, and everyone else who wants to work on this, Just because it's easier to make a chocolate teapot than a cast-iron one, doesn't imply that there is any need for chocolate teapots. IOW, we will be asking the IESG to spend reviewer time on EDO, so we need to give some plausible indication that someone might find it useful and it's not just an academic exercise. The current draft solely gives SACK + MPTCP + TCP-AO as an example, but is that really something that can't be done today? Adding more complexity to the TCP stack (with the potential for more vulnerabilities) is only worthwhile if there's an identifiable benefit, otherwise few production stacks are going to implement it anyway. Bob At 22:05 22/05/2014, Joe Touch wrote: >On 5/22/2014 11:58 AM, Wesley Eddy wrote: >>On 5/22/2014 1:58 PM, Joe Touch wrote: >>>>2) However, I think the main problem is that many important cases will >>>>need as large or larger TCP option space on the SYN as on non-SYNs. >>> >>>Oh, I certainly agree with this. The point of this proposal is twofold: >>> >>> a) (primary) to put to bed the notion that 'there is a way' >>> to extend SYN option space without contaminating connections to >>> legacy hosts >>> >>> b) (secondary) to do the only extension possible - post-SYN. >> >> >>I agree with this. In my view, we actually have had consensus >>for a long time that extending the SYN is "really hard" (requiring >>some creativity), > >Well, AFAICT we've also known for a long time that it's basically >impossible when needed - i.e., to new endpoints, without impacting >legacy endpoints (i.e., making their connections to new systems slow >or misinterpreting option info as user data). > >Yes, there are a few other potential solutions that need to be >discussed as non-viable, but IMO that's an important part of this doc. > >At the very least, even if it's not provably impossible, the obvious >solutions don't work and it's harder than it looks. > >Joe ________________________________________________________________ Bob Briscoe, BT
- [tcpm] Fwd: New Version Notification for draft-to… Joe Touch
- Re: [tcpm] New Version Notification for draft-tou… Pasi Sarolahti
- Re: [tcpm] New Version Notification for draft-tou… Wesley Eddy
- Re: [tcpm] New Version Notification for draft-tou… Joe Touch
- Re: [tcpm] New Version Notification for draft-tou… John Leslie
- Re: [tcpm] New Version Notification for draft-tou… Yoshifumi Nishida
- Re: [tcpm] New Version Notification for draft-tou… Joe Touch
- Re: [tcpm] New Version Notification for draft-tou… Scharf, Michael (Michael)
- Re: [tcpm] New Version Notification for draft-tou… John Leslie
- Re: [tcpm] New Version Notification for draft-tou… Olivier Bonaventure
- Re: [tcpm] New Version Notification for draft-tou… Scharf, Michael (Michael)
- Re: [tcpm] New Version Notification for draft-tou… Costin Raiciu
- Re: [tcpm] New Version Notification for draft-tou… John Leslie
- Re: [tcpm] New Version Notification for draft-tou… John Leslie
- Re: [tcpm] New Version Notification for draft-tou… Joe Touch
- Re: [tcpm] New Version Notification for draft-tou… Wesley Eddy
- Re: [tcpm] New Version Notification for draft-tou… Joe Touch
- Re: [tcpm] New Version Notification for draft-tou… Joe Touch
- Re: [tcpm] New Version Notification for draft-tou… Joe Touch
- Re: [tcpm] New Version Notification for draft-tou… Costin Raiciu
- Re: [tcpm] New Version Notification for draft-tou… Joe Touch
- Re: [tcpm] New Version Notification for draft-tou… John Leslie
- Re: [tcpm] New Version Notification for draft-tou… John Leslie
- Re: [tcpm] New Version Notification for draft-tou… Joe Touch
- Re: [tcpm] New Version Notification for draft-tou… Joe Touch
- Re: [tcpm] New Version Notification for draft-tou… Scheffenegger, Richard
- Re: [tcpm] New Version Notification for draft-tou… Bob Briscoe
- Re: [tcpm] New Version Notification for draft-tou… John Leslie
- Re: [tcpm] New Version Notification for draft-tou… Joe Touch
- Re: [tcpm] New Version Notification for draft-tou… Wesley Eddy
- Re: [tcpm] New Version Notification for draft-tou… Joe Touch
- Re: [tcpm] New Version Notification for draft-tou… David Borman
- Re: [tcpm] New Version Notification for draft-tou… Bob Briscoe
- Re: [tcpm] New Version Notification for draft-tou… Bob Briscoe
- Re: [tcpm] New Version Notification for draft-tou… David Borman
- Re: [tcpm] New Version Notification for draft-tou… Joe Touch
- Re: [tcpm] New Version Notification for draft-tou… Joe Touch
- Re: [tcpm] New Version Notification for draft-tou… Joe Touch
- [tcpm] timestamp options (was Re: New Version Not… Eggert, Lars
- Re: [tcpm] timestamp options (was Re: New Version… Brian Trammell
- Re: [tcpm] timestamp options (was Re: New Version… Scharf, Michael (Michael)
- Re: [tcpm] timestamp options (was Re: New Version… Scheffenegger, Richard
- Re: [tcpm] timestamp options (was Re: New Version… Scharf, Michael (Michael)
- Re: [tcpm] timestamp options (was Re: New Version… Scheffenegger, Richard
- Re: [tcpm] timestamp options (was Re: New Version… Scharf, Michael (Michael)
- Re: [tcpm] timestamp options (was Re: New Version… Yoshifumi Nishida
- Re: [tcpm] timestamp options (was Re: New Version… Joe Touch
- Re: [tcpm] timestamp options (was Re: New Version… Yoshifumi Nishida
- Re: [tcpm] timestamp options (was Re: New Version… Scheffenegger, Richard
- Re: [tcpm] New Version Notification for draft-tou… Bob Briscoe
- Re: [tcpm] New Version Notification for draft-tou… Bob Briscoe
- Re: [tcpm] New Version Notification for draft-tou… Joe Touch
- Re: [tcpm] New Version Notification for draft-tou… Joe Touch
- Re: [tcpm] New Version Notification for draft-tou… Bob Briscoe
- Re: [tcpm] New Version Notification for draft-tou… John Leslie
- Re: [tcpm] New Version Notification for draft-tou… Christoph Paasch
- Re: [tcpm] New Version Notification for draft-tou… Bob Briscoe
- Re: [tcpm] New Version Notification for draft-tou… Bob Briscoe
- Re: [tcpm] New Version Notification for draft-tou… Joe Touch
- Re: [tcpm] New Version Notification for draft-tou… Olivier Bonaventure
- Re: [tcpm] New Version Notification for draft-tou… Olivier Bonaventure
- Re: [tcpm] New Version Notification for draft-tou… Joe Touch
- Re: [tcpm] New Version Notification for draft-tou… Joe Touch
- Re: [tcpm] New Version Notification for draft-tou… Joe Touch
- Re: [tcpm] New Version Notification for draft-tou… Joe Touch
- Re: [tcpm] timestamp options (was Re: New Version… Joe Touch
- Re: [tcpm] timestamp options (was Re: New Version… Joe Touch
- Re: [tcpm] New Version Notification for draft-tou… John Leslie
- Re: [tcpm] New Version Notification for draft-tou… Joe Touch
- Re: [tcpm] New Version Notification for draft-tou… Olivier Bonaventure
- Re: [tcpm] New Version Notification for draft-tou… Olivier Bonaventure
- [tcpm] More TCP option space on SYNs Bob Briscoe
- Re: [tcpm] More TCP option space on SYNs Joe Touch
- Re: [tcpm] New Version Notification for draft-tou… Joe Touch
- Re: [tcpm] New Version Notification for draft-tou… Joe Touch
- [tcpm] SYN extension using ACK=0 data packets Bob Briscoe
- Re: [tcpm] SYN extension using ACK=0 data packets Joe Touch
- Re: [tcpm] More TCP option space on SYNs Bob Briscoe
- Re: [tcpm] SYN extension using ACK=0 data packets Bob Briscoe
- Re: [tcpm] timestamp options (was Re: New Version… Yoshifumi Nishida
- Re: [tcpm] timestamp options (was Re: New Version… Joe Touch
- Re: [tcpm] timestamp options (was Re: New Version… Mark Allman
- Re: [tcpm] timestamp options (was Re: New Version… Mark Allman
- Re: [tcpm] timestamp options (was Re: New Version… Scharf, Michael (Michael)
- Re: [tcpm] timestamp options (was Re: New Version… Joe Touch
- Re: [tcpm] timestamp options (was Re: New Version… Joe Touch
- Re: [tcpm] timestamp options (was Re: New Version… Scharf, Michael (Michael)
- Re: [tcpm] timestamp options (was Re: New Version… Mark Allman
- Re: [tcpm] timestamp options (was Re: New Version… Mark Allman
- Re: [tcpm] timestamp options (was Re: New Version… Joe Touch
- Re: [tcpm] timestamp options (was Re: New Version… Yoshifumi Nishida
- Re: [tcpm] timestamp options (was Re: New Version… Yuchung Cheng
- Re: [tcpm] timestamp options (was Re: New Version… Mark Allman
- Re: [tcpm] timestamp options (was Re: New Version… Yuchung Cheng
- Re: [tcpm] More TCP option space on SYNs Martin Duke
- Re: [tcpm] More TCP option space on SYNs Joe Touch