From owner-freebsd-chat@FreeBSD.ORG Sun Oct 12 16:18:19 2003 Return-Path: Delivered-To: freebsd-chat@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id C3ED216A4B3 for ; Sun, 12 Oct 2003 16:18:19 -0700 (PDT) Received: from dmlb.org (cpc2-cmbg4-6-0-cust36.cmbg.cable.ntl.com [81.96.76.36]) by mx1.FreeBSD.org (Postfix) with ESMTP id 3979243FAF for ; Sun, 12 Oct 2003 16:18:18 -0700 (PDT) (envelope-from dmlb@dmlb.org) Received: from orac.my.domain ([192.168.200.67] helo=orac) by dmlb.org with smtp (Exim 3.36 #1) id 1A8pTc-0008mY-00; Mon, 13 Oct 2003 00:18:16 +0100 Message-ID: <054d01c39117$215379e0$43c8a8c0@orac> From: "Duncan Barclay" To: "Christian Weisgerber" , References: <20031011212201.GA67228@bishop.my.domain> Date: Mon, 13 Oct 2003 00:18:22 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1158 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 Subject: Re: General Wireless Network Question X-BeenThere: freebsd-chat@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Non technical items related to the community List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 12 Oct 2003 23:18:19 -0000 > Brad Knowles wrote: > > > With 802.11b devices, the best speed you will be able to see is > > about 3Mbps, > > "11Mbit/s" nominally. In practice, I can get ~550kbytes/s out of > it. That is very slow if you're used to Fast Ethernet. Not that > you are going to notice for web browsing. OTOH, if you copy around > CD images... > > > I would say that VOIP over 802.11b could very easily be marginal at > > best. > > Oh c'mon, standard telephony voice is 64kbit/s. But it requires guaranteed latency for acceptable quality. All RF protocols that are designed to carry voice have contention free (i.e. reserved) periods to ensure latency. e.g. Bluetooth, HomeRF etc. That's not to say it can't be done with .11b but any 802.3 or 802.11 (802.15 MACs are different) MAC is more concerned with getting the data through whatever the latency rather than guaranteeing latency with some packet loss. > > Myself, I'm a strong believer in having much higher LAN bandwidth > > than your WAN upstream. > > Funnily enough, I just ordered my first GigE parts today. > > -- > Christian "naddy" Weisgerber naddy@mips.inka.de > > _______________________________________________ > freebsd-chat@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-chat > To unsubscribe, send any mail to "freebsd-chat-unsubscribe@freebsd.org" > >