From: "David S. Miller" <davem@redhat.com>
To: Stephen Hemminger <shemminger@osdl.org>
Cc: jbglaw@lug-owl.de, linux-net@vger.kernel.org,
linux-kernel@vger.kernel.org, netdev@oss.sgi.com
Subject: Re: [PATCH] fix tcp_default_win_scale.
Date: Tue, 6 Jul 2004 13:33:43 -0700 [thread overview]
Message-ID: <20040706133343.111556a8.davem@redhat.com> (raw)
In-Reply-To: <20040706133146.7ed47c69@dell_ss3.pdx.osdl.net>
On Tue, 6 Jul 2004 13:31:46 -0700
Stephen Hemminger <shemminger@osdl.org> wrote:
> The default tcp_rmem[2] is 174760, so we only need a wscale of 2 to represent
> that. We were sending 7.
It's only going to paper over this problem, because a window scale
of 2 still gets edited by the firewalls yet doesn't cause the
kind of damage 7 does.
Also, using a value of 7 is very safe, because it handles even the
tinyest of MTU's in use today (512 byte SLIP connections, for example
can still advertise sub-MTU sized chunks in the window). Since
a window scale of 7 allows a granularity of 128 octets.
next prev parent reply other threads:[~2004-07-06 20:37 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <32886.63.170.215.71.1088564087.squirrel@www.osdl.org>
[not found] ` <20040629222751.392f0a82.davem@redhat.com>
[not found] ` <20040630152750.2d01ca51@dell_ss3.pdx.osdl.net>
[not found] ` <20040630153049.3ca25b76.davem@redhat.com>
[not found] ` <20040701133738.301b9e46@dell_ss3.pdx.osdl.net>
[not found] ` <20040701140406.62dfbc2a.davem@redhat.com>
[not found] ` <20040702013225.GA24707@conectiva.com.br>
[not found] ` <20040706093503.GA8147@outpost.ds9a.nl>
2004-07-06 18:47 ` [PATCH] fix tcp_default_win_scale Stephen Hemminger
2004-07-06 18:58 ` Jan-Benedict Glaw
2004-07-06 20:17 ` David S. Miller
2004-07-06 20:31 ` Stephen Hemminger
2004-07-06 20:33 ` David S. Miller [this message]
2004-07-06 19:40 ` Jamie Lokier
2004-07-06 20:05 ` Stephen Hemminger
2004-07-06 20:28 ` David S. Miller
2004-07-06 20:36 ` Stephen Hemminger
2004-07-06 20:35 ` David S. Miller
2004-07-06 21:55 ` John Heffner
2004-07-06 22:50 ` David S. Miller
2004-07-07 1:32 ` John Heffner
2004-07-06 23:01 ` PLS help fix: recent 2.6.7 won't connect to anything " bert hubert
2004-07-06 20:12 ` David S. Miller
2004-07-06 22:44 ` bert hubert
2004-07-06 22:49 ` David S. Miller
2004-07-07 18:06 ` Stephen Hemminger
2004-07-07 19:31 ` Jamie Lokier
2004-07-07 19:38 ` bert hubert
2004-07-07 19:41 ` John Heffner
2004-07-09 23:14 ` David S. Miller
2004-07-06 20:00 ` Nivedita Singhvi
2004-07-06 20:16 ` David S. Miller
2004-07-06 20:26 ` David Ford
2004-07-06 20:24 ` David S. Miller
2004-07-06 23:16 ` Andi Kleen
2004-07-07 7:50 ` Chris Wedgwood
2004-07-06 23:19 ` Redeeman
2004-07-06 23:25 ` bert hubert
2004-07-07 5:39 ` Redeeman
2004-07-07 6:05 ` Redeeman
2004-07-07 19:47 ` John Heffner
2004-07-06 20:35 Tim Berti
2004-07-06 20:54 ` David Ford
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