netdev - Re: 3 packet TCP window limit?

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Date:	Wed, 05 May 2010 16:56:34 -0400
From:	Brian Bloniarz <bmb@...enacr.com>
To:	dormando <dormando@...ia.net>
CC:	netdev@...r.kernel.org, Rick Jones <rick.jones2@...com>,
	shemminger@...l.org
Subject: Re: 3 packet TCP window limit?

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?
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