Re: [tcpm] poll for adoption of draft-gont-tcpm-tcp-timestamps-03
Mark Allman <mallman@icir.org> Tue, 30 March 2010 03:06 UTC
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To: Joe Touch <touch@isi.edu>
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Cc: Christian Huitema <huitema@microsoft.com>, "tcpm@ietf.org" <tcpm@ietf.org>, Fernando Gont <fernando@gont.com.ar>
Subject: Re: [tcpm] poll for adoption of draft-gont-tcpm-tcp-timestamps-03
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Catching up, I will chime in with three things ... - It still seems to me like we have pretty well converged that the draft's value is in terms of the TIME_WAIT truncation scheme. - My own opinion is that the draft can simply say "this scheme works best with monotonically increasing timestamps" and leave it at that. I.e., it isn't a strict requirement because the fall-back is just what we have without timestamps and if it were a strict requirement we'd have to think about flags and such. I.e., TCP implementers are smart folks who don't need RFC pages to define for them how to generate a monotonic sequence of timestamps and so my view is that doing so is useless detail. - I agree with Joe's note below that this discussion has led to an evolved understanding of the issues and what will be in the draft and it'd be nice to see either (a) a new draft from Fernando that we can adopt or at least (b) an outline from the chairs that sketches a WG document and its major components that can then be filled in by some editor. allman > The 03 draft focused on creating an algorithm that prevented guess-based > attacks. > > The discussion, as far as I can tell, has focused on the most peripheral > part of 03 - the use of TS to cut TIME_WAIT. > > IMO, that's a sufficient change that we're no longer considering a mere > evolution of 03. The title, abstract, and most of the discussion will > change. > > Other points need to be addressed, notably: > > - are TS values already sufficiently monotonic, or is > an alg needed? > > - is per-socketpair state needed to support monotonicity? > > - interaction with SYN cookies > > - corner cases (when not monotonic, whether that can be > known, when it's supported on only one side, etc.) > > - whether this depends on knowing which end will close the > connection first at SYN time > > I don't feel discussion on the mailing list is sufficient to consider > the entirety of this proposal, and not just whether it's possible, but > whether it's necessary.
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Alfred Hönes
- [tcpm] poll for adoption of draft-gont-tcpm-tcp-t… Eddy, Wesley M. (GRC-MS00)[ASRC AEROSPACE CORP]
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Mark Allman
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Anantha Ramaiah (ananth)
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Alfred Hönes
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… L.Wood
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Mark Allman
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Joe Touch
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Fernando Gont
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… John Heffner
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Joe Touch
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Fernando Gont
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Mark Allman
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Joe Touch
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Mark Allman
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Mark Allman
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Fernando Gont
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Mark Allman
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Fernando Gont
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Joe Touch
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Fernando Gont
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Mark Allman
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Joe Touch
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Fernando Gont
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Alexander Zimmermann
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Fernando Gont
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Alexander Zimmermann
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Joe Touch
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Fernando Gont
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Christian Huitema
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Fernando Gont
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Joe Touch
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Fernando Gont
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Joe Touch
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Fernando Gont
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Mark Allman
- Re: [tcpm] poll for adoption of draft-gont-tcpm-t… Fernando Gont
- Re: [tcpm] draft-ietf-tcpm-1323bis Scheffenegger, Richard