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Date: Thu, 24 Sep 2009 19:46:41 -0700
From: Sam Leffler <sam@freebsd.org>
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To: Denis Shaposhnikov <dsh@wizard.volgograd.ru>
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Cc: stef-list@memberwebs.com, stef@memberwebs.com, freebsd-net@freebsd.org
Subject: Re: low ath speed on 8.0-RC1
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Denis Shaposhnikov wrote:
> Hello,
> 
> On Tue, 22 Sep 2009 11:43:31 -0500
> Stef Walter <stef-list@memberwebs.com> wrote:
> 
>>> I see also it periodically changes "media:" between OFDM/54Mbps and
>>> OFDM/48Mbps.
>> That's normal behavior. ath_rate_sample is finding the OFDM speed at
>> which traffic flows best.
> 
> May be do you know why I'm getting normal speed (2Mb/s) for some time
> after using "ifconfig bssid ..." command only?

When you set the bssid you reset the state of the tx rate control code
and that probably resets the tx rate to 24M.

	Sam