From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-x235.google.com (mail-wm0-x235.google.com [IPv6:2a00:1450:400c:c09::235]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 0AE1D3B29E for ; Sat, 4 Nov 2017 10:05:55 -0400 (EDT) Received: by mail-wm0-x235.google.com with SMTP id r196so6218614wmf.2 for ; Sat, 04 Nov 2017 07:05:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=QYoRzpatbY4YouZrb36FE4GJeNVwiEgnFoOZZSTajoU=; b=buXNPowSqfL5VfLB8DKMS0dtbVAiyA9uH+L7knjh3Rgk8j4uAjiDutzFxqsxr42nDV SS+yrD1glYrF4eXqHDk9OfOAu3m2q2nJSnSPIaNBEdhWXt7y1oFF/hGSSJHsI0Cryc8P gf4x281RR7cat/IyaIgrHUZ+nHUYiOcdPme775PRqpf7kxJy4FXnMljeF64DgiLWzGsQ z4JftTKh4I8N4ZDbJkNXNQFUofkAE25wOnRv1mE/k2VWak6Qeb2rVJE4mM/QzUG6JSQ/ DzuICdhifqyhChJa+6CVtLrggObKkd3lb1y7ZmXOi8xNCKBcQh8zurxMUZKsghBsveMB FMEQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=QYoRzpatbY4YouZrb36FE4GJeNVwiEgnFoOZZSTajoU=; b=A8hJnXDKv0uANsKjXB4Clahxq8LC3NfQauWX770eds/9B7VrdLGeupmKpWDfdz7Dp9 XcOvh2Aw1iEcvzvxkM1fE8ApxoUO2r9Zvhd8SrSJSW9emQws+Vi9JP8sQmwXPuAZZCa9 vTpWjvoG/GJS7Pi0kd74fr5KMMNSpwjeX7Ayw1udKxiH7gdhoLyOhJDAs02Z1uL9bOkt OhbqIsXvyW6gB9TuI3HRpHr/QjmLbyZX7kHrGbyJ9gyRQNr0MOcd4v2Vw2sZCXwOkKn5 nJ/gTD8NyIHgz8vvaA/iF26D9S735gcOpBpYSI53ebeM1TWVm0faOSsTJdtGSfNJ62KQ HVpQ== X-Gm-Message-State: AJaThX4MesOWlAlh8hVdurMRMRQmwgUUr7JuJzJZ4mI3On+pZuENP7S/ x/o8FEul6cMQ8+N5IwWyFHcabgNa X-Google-Smtp-Source: ABhQp+QhzPlOXtgFA+j5mPOXabeOrVpEK+UZXv5rGWSgvHgyW+FPCeL1oG2I5RHwvHXKYf0efvczxA== X-Received: by 10.28.207.130 with SMTP id f124mr1718875wmg.88.1509804354659; Sat, 04 Nov 2017 07:05:54 -0700 (PDT) Received: from [10.72.0.130] (h-1169.lbcfree.net. [185.99.119.68]) by smtp.gmail.com with ESMTPSA id c17sm10706451wrg.26.2017.11.04.07.05.53 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sat, 04 Nov 2017 07:05:53 -0700 (PDT) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) From: Pete Heist In-Reply-To: Date: Sat, 4 Nov 2017 15:05:53 +0100 Content-Transfer-Encoding: quoted-printable Message-Id: References: To: make-wifi-fast@lists.bufferbloat.net X-Mailer: Apple Mail (2.3124) Subject: Re: [Make-wifi-fast] Wiring up a wireless testbed X-BeenThere: make-wifi-fast@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 04 Nov 2017 14:05:56 -0000 > Date: Fri, 03 Nov 2017 23:51:05 +0100 > From: Toke H=C3=B8iland-J=C3=B8rgensen > To: make-wifi-fast@lists.bufferbloat.net > Subject: [Make-wifi-fast] Wiring up a wireless testbed > Message-ID: <87tvybm0x2.fsf@toke.dk> > Content-Type: text/plain >=20 > Since I had to (physically) move my wireless testbed recently, I had = to > figure out a way to run reliable WiFi experiments in a cramped server > room. I ended up wiring everything up instead of running over the air, > and documented the process here, in case anyone wants to replicate it: >=20 > = https://blog.tohojo.dk/2017/11/building-a-wireless-testbed-with-wires.html= >=20 > Also, if anyone sees any fatal flaw in that setup, please do let me = know :) That looks really nice, especially for reproducing and fixing software = bugs. I=E2=80=99d second Aaron=E2=80=99s comments that what you get here = is repeatability at the expense of not seeing things you see in the real = world, which you=E2=80=99re probably aware of. As an example of what I=E2=80=99ve seen, in the 2.4 GHz band with my = OM2P-HS routers running LEDE, I sometimes see CTS protection suddenly = flipping on or off in the middle of tests, changing throughput and = results considerably. It doesn=E2=80=99t help that one distant neighbor = seems to be using 40 MHz channels, so I=E2=80=99m sometimes struggling = to find clear 2.4 GHz spectrum, but this is what can happen in the real = world anyway. Unfortunately, I don=E2=80=99t think I can replicate this =E2=80=9Cwired = wireless" setup in my test closet at the moment, because none of my six = APs (NanoStation M5s or OM2P-HSs) have external antenna connectors. Nor = do the older MacBooks I started using for clients in point-to-multipoint = testing. I=E2=80=99m not sure I=E2=80=99ll even do much more = point-to-multipoint testing because of how disastrously the results vary = between runs, or if I do, I sense it=E2=80=99s going to consume a lot of = time. :)