Date: Thu, 14 Mar 2013 16:47:01 -0700 From: Adrian Chadd <adrian@freebsd.org> To: Lev Serebryakov <lev@freebsd.org> Cc: freebsd-wireless@freebsd.org Subject: Re: Why FreeBSD AP announce rates over 18Mbit/s as "Extended"? Message-ID: <CAJ-Vmokk-uo3OteGF9U9XDnwr4ek8SFey9szJV1U58E=G7zJBQ@mail.gmail.com> In-Reply-To: <1231231998.20130315032419@serebryakov.spb.ru> References: <1231231998.20130315032419@serebryakov.spb.ru>
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It's likely some hack done by the wifi vendors to "look good'. There's a split between basic (Required) and extended rates. You don't need to talk extended rates to associate. So your tool(s) are demonstrably broken. You should be able to get right up to 54mbit. :) Adrian On 14 March 2013 16:24, Lev Serebryakov <lev@freebsd.org> wrote: > Hello, Freebsd-wireless. > > I've sniffed all WiFi networks in my apartments (a lot of them!) and > compare data in beacons. I found one strangeness: > > Almost all networks (supported by SOHO soapbox-routers like > TP-Link, Zyxel and D-Link) announce rates 1b, 2b, 5.5b, 11b, 16, 24, > 26 and 54Mbit/s in "Supported rates" tag (tag #1) and only 6, 9, 12 > and 48Mbit/s goes to tag "Extended supported rates" (tag #50). > > And my AP FreeBSD-based) announce is rather different: 1b, 2b, 5.5b, > 11b, 16, 9, 12, 18Mbit/s goes to "Supported rates" (tag #1) and 24, > 26, 48 and 54Mbit/s goes to "Extended supported rates" (tag #50). > > It is reason why simple WiFi monitoring tools shows my AP as > capable only 18Mbit/s. :) > > What is reason why FreeBSD is different from all other WiFi stacks? > > -- > // Black Lion AKA Lev Serebryakov <lev@FreeBSD.org> > > _______________________________________________ > freebsd-wireless@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-wireless > To unsubscribe, send any mail to "freebsd-wireless-unsubscribe@freebsd.org"
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