Return-path: Received: from mail-bw0-f219.google.com ([209.85.218.219]:38965 "EHLO mail-bw0-f219.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751003AbZGaIEZ (ORCPT ); Fri, 31 Jul 2009 04:04:25 -0400 Received: by bwz19 with SMTP id 19so1048425bwz.37 for ; Fri, 31 Jul 2009 01:04:24 -0700 (PDT) Subject: Re: [PATCH] mac80211: use beacons for connection monitoring From: Maxim Levitsky To: Johannes Berg Cc: Reinette Chatre , linville@tuxdriver.com, linux-wireless@vger.kernel.org In-Reply-To: <1249027087.29587.18.camel@johannes.local> References: <1248903159-17024-1-git-send-email-reinette.chatre@intel.com> <1249024097.7653.6.camel@maxim-laptop> <1249026181.29587.14.camel@johannes.local> <1249027087.29587.18.camel@johannes.local> Content-Type: text/plain Date: Fri, 31 Jul 2009 11:04:20 +0300 Message-Id: <1249027460.2609.2.camel@maxim-laptop> Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Fri, 2009-07-31 at 09:58 +0200, Johannes Berg wrote: > On Fri, 2009-07-31 at 09:43 +0200, Johannes Berg wrote: > > > Fix it then. Offer an implementation of your superior solution. > > I just don't think that this patch is a solution because it means that > we'll be connected to the AP forever, without knowing anything is wrong, > if the AP can reach us but we can't reach the AP (maybe because we have > a good Intel card with great sensitivity). > > Sure -- it's possible to factor in transmit status reports (but remember > that not all hardware gives those reliably) or do things on a different > schedule etc. But as long as nobody wants to really improve things I > don't see why we should take the regression and _remove_ the current > behaviour. > > johannes It is ok to send probes every minute or so, but not each second, and probes must be retried. Because of these probes, wireless literally reconnects every 5 seconds, here, and I am 10 meters from the AP. Maxim