[111854] in North American Network Operators' Group
Re: Linux Router: TCP slow, UDP fast
daemon@ATHENA.MIT.EDU (Mikael Abrahamsson)
Sat Feb 14 08:11:01 2009
Date: Sat, 14 Feb 2009 14:09:33 +0100 (CET)
From: Mikael Abrahamsson <swmike@swm.pp.se>
To: Lee <ler762@gmail.com>
In-Reply-To: <dd5f2deb0902140451k5d3cd7ees869846de6374dfa3@mail.gmail.com>
Cc: nanog list <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
On Sat, 14 Feb 2009, Lee wrote:
> Try enabling window scaling
> echo 1 > /proc/sys/net/ipv4/tcp_window_scaling
> or, if you really want it disabled, configure a larger minimum window size
> net.ipv4.tcp_rmem = 64240 87380 16777216
Without window scaling, you're limited to 64k window size anyway.
Chris, what is the round trip delay between the machines involved in your
TCP session?
--
Mikael Abrahamsson email: swmike@swm.pp.se
