From owner-freebsd-net@FreeBSD.ORG Sat Apr 14 19:21:29 2012 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2D170106566B for ; Sat, 14 Apr 2012 19:21:29 +0000 (UTC) (envelope-from yuri@rawbw.com) Received: from shell0.rawbw.com (shell0.rawbw.com [198.144.192.45]) by mx1.freebsd.org (Postfix) with ESMTP id F046E8FC12 for ; Sat, 14 Apr 2012 19:21:28 +0000 (UTC) Received: from eagle.yuri.org (stunnel@localhost [127.0.0.1]) (authenticated bits=0) by shell0.rawbw.com (8.14.4/8.14.4) with ESMTP id q3EJLS9i035686; Sat, 14 Apr 2012 12:21:28 -0700 (PDT) (envelope-from yuri@rawbw.com) Message-ID: <4F89CE37.1070706@rawbw.com> Date: Sat, 14 Apr 2012 12:21:27 -0700 From: Yuri User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:10.0.3) Gecko/20120316 Thunderbird/10.0.3 MIME-Version: 1.0 To: Jason Leschnik References: <4F89C005.2020304@rawbw.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-net@freebsd.org Subject: Re: Why host transmit rate on 1Gb ethernet is only ~750Mbps ? X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 14 Apr 2012 19:21:29 -0000 On 04/14/2012 12:11, Jason Leschnik wrote: > I would first start by doing a point-to-point link between your two > end nodes to rule out your network gear as being the problem Now I did this, connected hosts directly with cat5 cable. Sending speed is still 753 Mbits/sec. Receiving speed reported even dropped from 729 to 695 Mbps for some reason. This rules out the router. Yuri