From owner-freebsd-questions@FreeBSD.ORG Thu Oct 27 09:30:48 2005 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 45FE816A41F for ; Thu, 27 Oct 2005 09:30:48 +0000 (GMT) (envelope-from ptitoliv@frenchsuballiance.cjb.net) Received: from ares.ptitoliv.net (ares.ptitoliv.net [195.140.141.36]) by mx1.FreeBSD.org (Postfix) with ESMTP id C7C6A43D45 for ; Thu, 27 Oct 2005 09:30:47 +0000 (GMT) (envelope-from ptitoliv@frenchsuballiance.cjb.net) Received: from localhost (localhost [127.0.0.1]) by ares.ptitoliv.net (Postfix) with ESMTP id 4D8AE20F8 for ; Thu, 27 Oct 2005 11:32:07 +0200 (CEST) Received: from ares.ptitoliv.net ([127.0.0.1]) by localhost (ares.ptitoliv.net [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 54537-09 for ; Thu, 27 Oct 2005 11:32:06 +0200 (CEST) Received: from webmail.ptitoliv.net (localhost [127.0.0.1]) by ares.ptitoliv.net (Postfix) with ESMTP id CD8B1207D for ; Thu, 27 Oct 2005 11:32:05 +0200 (CEST) Received: from 82.228.88.181 (SquirrelMail authenticated user ptitoliv) by webmail.ptitoliv.net with HTTP; Thu, 27 Oct 2005 11:32:05 +0200 (CEST) Message-ID: <1481.82.228.88.181.1130405525.squirrel@webmail.ptitoliv.net> Date: Thu, 27 Oct 2005 11:32:05 +0200 (CEST) From: "ptitoliv" To: freebsd-questions@freebsd.org User-Agent: SquirrelMail/1.4.5 MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Priority: 3 (Normal) Importance: Normal X-Virus-Scanned: amavisd-new at ares.ptitoliv.net Subject: Window Scaling X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: ptitoliv@frenchsuballiance.cjb.net List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Oct 2005 09:30:48 -0000 Hello everybody, I have got 2 dedicated servers located on the same network. 1 is running on FreeBSD and the other under Linux Debian. The problem is that on the BSD box, it is impossible to have a transfer rate higer than 200 kB/s with one connection. If I create simultaneous connections, I can reach more higher transfer rates. On my Debian Box, I can reach easily 900 KB/s with only one connection. I have heard about TCP Window size and Window scaling. Do you think that it is possible to modify parameters on the BSD box in order to reach the same transfer rates than the Debian box with only one connection ? Thank you for your answers. Best Regards, Ptitoliv