From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Hemminger Subject: Re: 3 packet TCP window limit? Date: Wed, 5 May 2010 15:03:43 -0700 Message-ID: <20100505150343.0c09c6ba@nehalam> References: <4BE171EC.20904@athenacr.com> <4BE1DB82.2030403@athenacr.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: dormando , netdev@vger.kernel.org, Rick Jones , shemminger@osdl.org To: Brian Bloniarz Return-path: Received: from mail.vyatta.com ([76.74.103.46]:54819 "EHLO mail.vyatta.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753501Ab0EEWD6 (ORCPT ); Wed, 5 May 2010 18:03:58 -0400 In-Reply-To: <4BE1DB82.2030403@athenacr.com> Sender: netdev-owner@vger.kernel.org List-ID: On Wed, 05 May 2010 16:56:34 -0400 Brian Bloniarz 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?