From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout.gmx.net (mout.gmx.net [212.227.17.21]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "mout.gmx.net", Issuer "TeleSec ServerPass DE-1" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id 14DC321F301 for ; Wed, 25 Feb 2015 01:30:20 -0800 (PST) Received: from hms-beagle-2.lan ([134.2.89.70]) by mail.gmx.com (mrgmx101) with ESMTPSA (Nemesis) id 0LraSn-1XNLxU2yrt-013Nll; Wed, 25 Feb 2015 10:30:01 +0100 Content-Type: text/plain; charset=windows-1252 Mime-Version: 1.0 (Mac OS X Mail 7.3 \(1878.6\)) From: Sebastian Moeller In-Reply-To: Date: Wed, 25 Feb 2015 10:29:58 +0100 Content-Transfer-Encoding: quoted-printable Message-Id: <4A80D1F9-F4A1-4D14-AC75-958C5A2E8168@gmx.de> References: <201502250806.t1P86o5N011632@bagheera.jungle.bt.co.uk> To: Michael Welzl X-Mailer: Apple Mail (2.1878.6) X-Provags-ID: V03:K0:+sf51/FM9Gy69jDHQX/n4APiDvop32s9x+nz/Xr8VENqM7E1+dq ksFn5inArYnijKsI/ZWqWZ56Yp0mJcSAKJlF4uGcJYWdtJcXLzffhS5BZ2Iy8NAtV0sY1rf ORJtN9gf8EzHDTav9h3jsycio0Zq9gelCvZdwuPw4c1rVXBnIqQA22FC/DpLGI3vppsqtAm /8ABqzV/+81AHBCcE5ymA== X-UI-Out-Filterresults: notjunk:1; Cc: Alex Elsayed , "bloat@lists.bufferbloat.net" Subject: Re: [Bloat] RED against bufferbloat 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: Wed, 25 Feb 2015 09:30:49 -0000 Hi Michael, On Feb 25, 2015, at 10:18 , Michael Welzl wrote: > Two points, >=20 > below... >=20 > [...] > Why exactly did you think we should have looked at asymmetric paths? = To study what? > ( I'm not debating that asymmetric paths play out different in = behavior. I'm just saying that one needs to be clear about what exactly = is being investigated, and why.) >=20 > [...] I have an opinion on that: because a) asymmetric is the general = case and symmetric the special case b) a large percentage of end-nodes = sit behind asymmetric paths that often are the bottlenecks that cause = the queues for AQM to act on, so any AQM better work well in that = situation to avoid spending its live in the ivory tower ;). So to put it = in different words, as reality has an "asymmetry bias=94 ;)=20 Best Regards=