From owner-freebsd-net@FreeBSD.ORG Sun Feb 21 10:35:52 2010 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E422810656B9 for ; Sun, 21 Feb 2010 10:35:51 +0000 (UTC) (envelope-from egorenar@googlemail.com) Received: from ey-out-2122.google.com (ey-out-2122.google.com [74.125.78.26]) by mx1.freebsd.org (Postfix) with ESMTP id 7202D8FC29 for ; Sun, 21 Feb 2010 10:35:51 +0000 (UTC) Received: by ey-out-2122.google.com with SMTP id 9so356173eyd.9 for ; Sun, 21 Feb 2010 02:35:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type; bh=zknncjQ8Lhvz6EIGyqWFOc41Cq5+Fao7UHm2RwnyxzA=; b=t38YCxqMgEkENJIWvtwSMEMQ8qFOdzvJ/acIiSKYa6yHycZ2lpgtfHUfsjSEujqtEX GMBdrhkUOIZtsoU5X+YHsrSSzsNfEYz3cgK3x9ndwH4r+VKH1RiAOtwXBDKMuTyLvXo+ kxVEZXPCL0J+oh9t6L0eDNC+u8ah8TF9LIyUs= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=o+U9zrXcUrad9rAyrSaZ3pIQIyDziM7aoKY9MbRLptmK5ELt3lj4pNodPYVWcWjNzE Z9pDjxvOAHT584RV9q2A2klviTJJDEPItifYIo7aLOrF1lDqmjfXsWM9b8wxzhoSMkud XxN3gH4i4+FRJw6A+HTnQQnyu8t6+VYupLz0I= MIME-Version: 1.0 Received: by 10.213.109.131 with SMTP id j3mr7387604ebp.36.1266748541510; Sun, 21 Feb 2010 02:35:41 -0800 (PST) In-Reply-To: <4B6F2A44.3010205@errno.com> References: <2d3b7e441002060028i5b1fc665p92b10fa21d77284d@mail.gmail.com> <8F5F80D8-A262-49F4-B580-781A44D3190D@freebsd.org> <2d3b7e441002060658h49712201m464dac80208db369@mail.gmail.com> <4B6DE491.8010901@errno.com> <2d3b7e441002070041waa8f968le66328ebeb7b163d@mail.gmail.com> <4B6F2A44.3010205@errno.com> Date: Sun, 21 Feb 2010 11:35:41 +0100 Message-ID: <2d3b7e441002210235q5c6de2bvaedfa460fcb0766e@mail.gmail.com> From: Alexander Egorenkov To: Sam Leffler Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-net@freebsd.org Subject: Re: HT rate set in net80211 not changeable for STA X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 21 Feb 2010 10:35:52 -0000 This MCS32 HT rate causes problems with AMRR. If the connection between a client and an AP is very good and the AP supports MCS32, the client keeps increasing the Tx rate upto MCS32 and then the problems begin because the client starts to send with MCS32. Alex. On Sun, Feb 7, 2010 at 10:01 PM, Sam Leffler wrote: > Alexander Egorenkov wrote: > > >> >> On Sat, Feb 6, 2010 at 10:52 PM, Sam Leffler > sam@errno.com>> wrote: >> >> The advertised rate set should be initially set according to the >> capabilities of the device. There were no devices > 2x2 when I >> wrote the code so MCS15 is the max. To support such devices you >> need to do more than just grow the rateset. >> >> >> But my device is a 2T2R device and supports MCS32 (HT duplicate mode). >> >> > MCS32 is special; as you indicate it forces duplicate signal on the upper > and lower channels in HT40. There is no support for MCS32 in net80211. > > Sam > >