From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <tytso@thunk.org>
Received: from imap.thunk.org (imap.thunk.org
	[IPv6:2600:3c02::f03c:91ff:fe96:be03])
	(using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits))
	(Client CN "imap.thunk.org", Issuer "CAcert Class 3 Root" (verified OK))
	by huchra.bufferbloat.net (Postfix) with ESMTPS id 757AB20019C
	for <cerowrt-devel@lists.bufferbloat.net>;
	Tue, 17 Dec 2013 21:05:09 -0800 (PST)
Received: from root (helo=closure.thunk.org)
	by imap.thunk.org with local-esmtp (Exim 4.80)
	(envelope-from <tytso@thunk.org>)
	id 1Vt9Jj-0004af-Ct; Wed, 18 Dec 2013 05:05:07 +0000
Received: by closure.thunk.org (Postfix, from userid 15806)
	id A49E2580BF1; Wed, 18 Dec 2013 00:05:04 -0500 (EST)
DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=thunk.org; s=mail;
	t=1387343104; bh=RdV2PADmptLJyIAkuC0TQY5G1J/5pVET6JJ2DW8FQhA=;
	h=Date:From:To:Cc:Subject:References:In-Reply-To:From;
	b=oGHCsnxgGQ5iv+gCLiKbWHImjeoYlX9TjBrgS8Ua2ilfNnarDrZ6jjKH6JhfFjjZT
	RXOu3KieJtra2QgYbgW4BwVDz10viMNYwbo+zuQCRykWLoTrKeWbKGkgw1uxT1ZkTq
	boXkK5XBP05wE7H2IBsZR74un1R0V694HEkr2KsY=
Date: Wed, 18 Dec 2013 00:05:04 -0500
From: Theodore Ts'o <tytso@mit.edu>
To: David Lang <david@lang.hm>
Message-ID: <20131218050504.GB15289@thunk.org>
References: <CAA93jw7wRuadsrU0MXJt5FspyYTV1ZPuOv=7DMojTWssXG_Sog@mail.gmail.com>
	<alpine.DEB.2.02.1312161327510.6430@nftneq.ynat.uz>
	<52AF797E.6030600@imap.cc> <18972.1387302855@sandelman.ca>
	<CAGhGL2Cd-g2j7f==3cpUFTRHyTQCkhmkyha20wZSw0aRWJTn4A@mail.gmail.com>
	<1387319157.48330794@apps.rackspace.com>
	<CAGhGL2Bfvm=kdJiQ8zPWjrENM5kymj2GnFSV87Sxe+7sGE0ObQ@mail.gmail.com>
	<20131217154345.0e91b65f@nehalam.linuxnetplumber.net>
	<20131218013303.GA19261@thunk.org>
	<alpine.DEB.2.02.1312171901420.26048@nftneq.ynat.uz>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <alpine.DEB.2.02.1312171901420.26048@nftneq.ynat.uz>
User-Agent: Mutt/1.5.21 (2010-09-15)
X-SA-Exim-Connect-IP: <locally generated>
X-SA-Exim-Mail-From: tytso@thunk.org
X-SA-Exim-Scanned: No (on imap.thunk.org); SAEximRunCond expanded to false
Cc: "cerowrt-devel@lists.bufferbloat.net" <cerowrt-devel@lists.bufferbloat.net>
Subject: Re: [Cerowrt-devel] treating 2.4ghz as -legacy?
X-BeenThere: cerowrt-devel@lists.bufferbloat.net
X-Mailman-Version: 2.1.13
Precedence: list
List-Id: Development issues regarding the cerowrt test router project
	<cerowrt-devel.lists.bufferbloat.net>
List-Unsubscribe: <https://lists.bufferbloat.net/options/cerowrt-devel>,
	<mailto:cerowrt-devel-request@lists.bufferbloat.net?subject=unsubscribe>
List-Archive: <https://lists.bufferbloat.net/pipermail/cerowrt-devel>
List-Post: <mailto:cerowrt-devel@lists.bufferbloat.net>
List-Help: <mailto:cerowrt-devel-request@lists.bufferbloat.net?subject=help>
List-Subscribe: <https://lists.bufferbloat.net/listinfo/cerowrt-devel>,
	<mailto:cerowrt-devel-request@lists.bufferbloat.net?subject=subscribe>
X-List-Received-Date: Wed, 18 Dec 2013 05:05:09 -0000

On Tue, Dec 17, 2013 at 07:04:54PM -0800, David Lang wrote:
> As far as I have been able to tell this is purely a software thing.
> I'm not sure that it's even that it's so complicated as it is that
> there are no standards for APs to talk to each other to do this sort
> of thing so nobody has tackled it as an opensource project.

The question is whether you can get the signal strength for a client
from an AP which isn't associated with the client.  It may not require
special hardwar, but it would seem to me that it would require special
firmware in the WiFi device on the AP, right?

						- Ted