Date: Sun, 01 May 2005 21:21:03 +0200 From: Carl Gustavsson <carl@thegoodone.mine.nu> To: Marco Stroosnijder <stromanz@zonnet.nl>, freebsd-stable@freebsd.org Subject: Re: wifi limited to 180KBps Message-ID: <42752C1F.80102@thegoodone.mine.nu> In-Reply-To: <1114971968.697.22.camel@freebsd.stromanz.org> References: <0C9AA1AB019C4A44AE29659CF2BB203202E9C1@gir.routemaster.net> <4274B1B8.5080303@thegoodone.mine.nu> <1114971968.697.22.camel@freebsd.stromanz.org>
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Marco Stroosnijder wrote: >Carl, > >Just a hunch... asymetric I/O in your pccard slot? >Try geting and puting files via ftp between the two hosts. >There is a big differance between getting and putting files!! >(number of reads and writes from "pccard slot") >I had problems with normal ethernet 100 Mbit pccards 750 KB max "write". > > > My wireless network consists of a server with a PCI wifi card (Netgear MA311) which acts as a accesspoint and a laptop (Dell Lattitude D600) with a Intel Pro/Wireless 2200BG mini-PCI card. The problem is with the MA311-card. >Wireless links have 2-10 % package loss by default. >To check for package loss or for a general bad link, I just use ping >-a/-A to hear if packets are lost. Ping will be auditable on i.e. in >case of failure, this beats the crap out of watching those sequence >numbers. This may also show succes and failure in bursts. > >Maybe you should (if possible) adjust the rate to 11Mbps or (try to) >"enforce" it from the "other side". Most likely using ifconfig +mediaopt > > >>wi0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps >> >> > >According to the ifconfig output the wi0 interface is 2Mbps >(DS/2Mbps <hostap>) > >Further down your output you find this: > > >>TX rate (selection): [ 11 ] >>TX rate (actual speed): [ 2 ] >> >> > >2Mbit = (theo. aprox.) 256 KBytes - >minus package loss and other factors = 220 KBytes MAX (?)... >Maybe 180 KBytes is not so bad? > >My 2 cents, >Marco Stroosnijder > > The problem is that it won't set to 11Mbps. It's a bug. There is a hack to lock the rate at 11Mbps but when you got bad signal it don't go down as it should and you get high packet loss. See: http://lists.freebsd.org/pipermail/freebsd-hackers/2005-February/010102.html - Carl
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