netdev - Re: [PATCH iproute2] document initcwnd

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Message-ID: <20100505193307.42382590@nehalam>
Date:	Wed, 5 May 2010 19:33:07 -0700
From:	Stephen Hemminger <shemminger@...tta.com>
To:	Brian Bloniarz <bmb@...enacr.com>
Cc:	dormando <dormando@...ia.net>, netdev@...r.kernel.org,
	Rick Jones <rick.jones2@...com>, shemminger@...l.org
Subject: Re: [PATCH iproute2] document initcwnd

On Wed, 05 May 2010 21:37:40 -0400
Brian Bloniarz <bmb@...enacr.com> wrote:

> Stephen Hemminger wrote:
> > On Wed, 05 May 2010 16:56:34 -0400
> > Brian Bloniarz <bmb@...enacr.com> wrote:
> > 
> >> dormando wrote:
> >>>> This sounds like TCP slow start.
> >>>>
> >>>> http://en.wikipedia.org/wiki/Slow-start
> >>>>
> >>>> As far as tunables you might want to play with the initcwnd route
> >>>> flag (see "ip route help")
> >>> Ah, yes, initcwnd was it. I'm well aware of TCP Congestion control / slow
> >>> start / etc. However I couldn't find the damn tunable for it :)
> >> Documenting the flag in ip(8) might increase its visibility
> >> a little. I don't see it documented in the iproute2 git head,
> >> though it shows up on http://linux.die.net/man/8/ip somehow.
> >>
> >> Stephen, do you know why that is?
> > 
> > No one sent me an official patch to change it?
> 
> Mention initcwnd in ip(8). Text taken from doc/ip-cref.tex.
> 
> Signed-off-by: Brian Bloniarz <bmb@...enacr.com>

Ok, I will add it with an explicit caution about not doing this on public
networks.
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