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Re: [multipathtcp] Time for Long Options?

Mark Handley <M.Handley@cs.ucl.ac.uk> Thu, 29 July 2010 15:42 UTC

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From: Mark Handley <M.Handley@cs.ucl.ac.uk>
Date: Thu, 29 Jul 2010 16:42:29 +0100
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To: Alexander Zimmermann <alexander.zimmermann@nets.rwth-aachen.de>
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Subject: Re: [multipathtcp] Time for Long Options?
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I've also been wondering about the "extended option" option.  For example:

http://tools.ietf.org/html/draft-kohler-tcpm-extopt-00

It seems like it might be good to define this now, even though we know
we can't effectively use it for a long time (many years at least).
The issue is of course middleboxes that might not understand, and
parse extended options as payload.  But as a long-term exercise, it
does seem like the right thing to do.

 - Mark

On 29 July 2010 16:19, Alexander Zimmermann
<alexander.zimmermann@nets.rwth-aachen.de> wrote:
> Hi,
>
> since we decided today to put the signaling stuff into the
> options (good decision), I wonder if it's the right time now
> to extend the option field.
>
> Remember, Linux for example use Timestamps and SACK per
> default, so that no space is free (without loosing SACK
> blocks)...
>
> Alex
>
>
> //
> // Dipl.-Inform. Alexander Zimmermann
> // Department of Computer Science, Informatik 4
> // RWTH Aachen University
> // Ahornstr. 55, 52056 Aachen, Germany
> // phone: (49-241) 80-21422, fax: (49-241) 80-22220
> // email: zimmermann@cs.rwth-aachen.de
> // web: http://www.umic-mesh.net
> //
>
>
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