From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from rock.ICSI.Berkeley.EDU (rock.ICSI.Berkeley.EDU [192.150.186.19]) by huchra.bufferbloat.net (Postfix) with ESMTP id 0A0F221F0F2 for ; Wed, 9 Jan 2013 12:14:22 -0800 (PST) Received: from localhost (localhost.localdomain [127.0.0.1]) by rock.ICSI.Berkeley.EDU (Postfix) with ESMTP id E47E32C4010; Wed, 9 Jan 2013 12:14:21 -0800 (PST) X-Virus-Scanned: amavisd-new at ICSI.Berkeley.EDU Received: from rock.ICSI.Berkeley.EDU ([127.0.0.1]) by localhost (maihub.ICSI.Berkeley.EDU [127.0.0.1]) (amavisd-new, port 10024) with LMTP id WNdLe17amcVU; Wed, 9 Jan 2013 12:14:21 -0800 (PST) Received: from guns.icir.org (adsl-69-222-35-58.dsl.bcvloh.ameritech.net [69.222.35.58]) by rock.ICSI.Berkeley.EDU (Postfix) with ESMTP id 847992C400B; Wed, 9 Jan 2013 12:14:21 -0800 (PST) Received: from lawyers.icir.org (localhost [127.0.0.1]) by guns.icir.org (Postfix) with ESMTP id 26C76E25BAF; Wed, 9 Jan 2013 15:14:21 -0500 (EST) Received: from lawyers.icir.org (localhost [127.0.0.1]) by lawyers.icir.org (Postfix) with ESMTP id 299835CC48A; Wed, 9 Jan 2013 15:14:21 -0500 (EST) To: Michael Richardson From: Mark Allman In-Reply-To: <4191.1357761907@sandelman.ca> Organization: International Computer Science Institute (ICSI) Song-of-the-Day: Nobody Told Me X-URL-0: http://www.icir.org/mallman-files/Document19802.pdf X-URL-1: http://www.icir.org/mallman-files/Document67463.xlsx MIME-Version: 1.0 Content-Type: multipart/signed; boundary="--------ma53149-1"; micalg=pgp-sha1; protocol="application/pgp-signature" Date: Wed, 09 Jan 2013 15:14:21 -0500 Sender: mallman@icir.org Message-Id: <20130109201421.299835CC48A@lawyers.icir.org> Cc: bloat Subject: Re: [Bloat] Bufferbloat Paper X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list Reply-To: mallman@icir.org List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Jan 2013 20:14:22 -0000 ----------ma53149-1 Content-Type: text/plain Content-Disposition: inline > It seems to me, that for a given host pair, there is some RTT > theorectical minimum, which represents a completely empty network, and > perhaps one can observe something close to it in the samples, and maybe > a periodic ICMP ping would have been in order, particularly when the > host pair was not observed to have any traffic flowing. > > The question of queuing delay then can be answered by how much higher > the RTT is over some minimum. The solid lines in the plots in figure 1 are the minimums. The lines on figure 2 represent the difference between the samples and the corresponding minimum. allman ----------ma53149-1 Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (Darwin) iEYEARECAAYFAlDtz50ACgkQWyrrWs4yIs7PcwCfcEDKInFgkW9PanReISbf+gYe JWYAnjTtDz5qE2RMG/RpPkz3KDYeFCFa =SI52 -----END PGP SIGNATURE----- ----------ma53149-1--