From owner-freebsd-stable@FreeBSD.ORG Tue Jun 1 14:39:28 2004 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0D1AE16A4CE for ; Tue, 1 Jun 2004 14:39:28 -0700 (PDT) Received: from absinthe.tincture.us (dsl081-048-058.sfo1.dsl.speakeasy.net [64.81.48.58]) by mx1.FreeBSD.org (Postfix) with ESMTP id AE1BA43D41 for ; Tue, 1 Jun 2004 14:39:27 -0700 (PDT) (envelope-from fred@tincture.us) Received: from [192.168.1.2] (dsl081-244-007.sfo1.dsl.speakeasy.net [64.81.244.7]) (authenticated bits=0)i51LdQr8066170 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NO); Tue, 1 Jun 2004 14:39:26 -0700 (PDT) (envelope-from fred@tincture.us) In-Reply-To: <1086120145.485.482.camel@zircon> References: <1086120145.485.482.camel@zircon> Mime-Version: 1.0 (Apple Message framework v618) Content-Type: text/plain; charset=US-ASCII; format=flowed Message-Id: <2ACC3C06-B414-11D8-9D9B-003065C7DFE8@tincture.us> Content-Transfer-Encoding: 7bit From: Fred Condo Date: Tue, 1 Jun 2004 14:39:31 -0700 To: Joe Kelsey X-Mailer: Apple Mail (2.618) cc: stable@freebsd.org Subject: Re: Network Bandwidth Issues X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 01 Jun 2004 21:39:28 -0000 On Jun 1, 2004, at 13:02, Joe Kelsey wrote: > I have experienced severe network bandwidth issues on all versions of > -stable since 4.8, and yet I have never seen any discussion of these > issues. > > The way I see these issues has come from having side-by-side boxes on > the same 100M switch have wildly different bandwidth when talking to > various remote sites. For instance, downloading ports, the newer box > (post 4.8) regularly suffers under 1M bandwidth, while the 4.7 box > merrily trots along at maximum speed. This seems somehow unrelated to > the actual network hardware, as I have seen the same thing with fxp, de > and rl cards. > > Has anyone explored network bandwidth issues in -stable recently? What > can I do to work out these problems? > First make sure the duplex setting is the same on the NIC and on the switch.