From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cassarossa.samfundet.no (cassarossa.samfundet.no [IPv6:2001:67c:29f4::29]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (Client did not present a certificate) by huchra.bufferbloat.net (Postfix) with ESMTPS id 9811021F2F1 for ; Thu, 21 Aug 2014 02:30:51 -0700 (PDT) Received: from pannekake.samfundet.no ([2001:67c:29f4::50] ident=unknown) by cassarossa.samfundet.no with esmtps (TLS1.2:DHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.80) (envelope-from ) id 1XKOhl-0001Kl-5s for bloat@lists.bufferbloat.net; Thu, 21 Aug 2014 11:30:49 +0200 Received: from sesse by pannekake.samfundet.no with local (Exim 4.80) (envelope-from ) id 1XKOhk-0007OL-Sd for bloat@lists.bufferbloat.net; Thu, 21 Aug 2014 11:30:48 +0200 Date: Thu, 21 Aug 2014 11:30:48 +0200 From: "Steinar H. Gunderson" To: bloat@lists.bufferbloat.net Message-ID: <20140821093048.GA26169@sesse.net> References: <91696A3A-EF44-4A1A-8070-D3AF25D0D9AC@netapp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: X-Operating-System: Linux 3.16.0-rc5 on a x86_64 User-Agent: Mutt/1.5.21 (2010-09-15) Subject: Re: [Bloat] sigcomm wifi X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 Aug 2014 09:30:52 -0000 On Thu, Aug 21, 2014 at 11:23:01AM +0200, Mikael Abrahamsson wrote: > I also remember a problem that was solved by turning down the > transmit power of the APs, as they were causing problems due to too > much interference between them. Sometimes the solutions aren't all > intuitive, and +1 on the experience of running these kinds of > networks being important. This is very common on 2.4 GHz (and will happen by itself in a controller-based setup). Anything that reduces the cell size is good (assuming you have enough APs for all the resulting cells); if you go to big stadiums etc., you will also see lots of directional antennas to reduce the cell size further. Note that the AP also can ask _clients_ to reduce their power level accordingly. /* Steinar */ -- Homepage: http://www.sesse.net/