From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx2.netapp.com (mx2.netapp.com [216.240.18.37]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "MX2.netapp.com", Issuer "VeriSign Class 3 International Server CA - G3" (not verified)) by huchra.bufferbloat.net (Postfix) with ESMTPS id 207B0200519 for ; Fri, 27 Jan 2012 10:11:49 -0800 (PST) X-IronPort-AV: E=Sophos;i="4.71,581,1320652800"; d="p7s'?scan'208";a="620285699" Received: from smtp1.corp.netapp.com ([10.57.156.124]) by mx2-out.netapp.com with ESMTP; 27 Jan 2012 10:11:16 -0800 Received: from sacrsexc2-prd.hq.netapp.com (sacrsexc2-prd.hq.netapp.com [10.99.115.28]) by smtp1.corp.netapp.com (8.13.1/8.13.1/NTAP-1.6) with ESMTP id q0RIAx4Z026036; Fri, 27 Jan 2012 10:11:16 -0800 (PST) Received: from VMWEXCEHT01-PRD.hq.netapp.com ([10.106.76.239]) by sacrsexc2-prd.hq.netapp.com with Microsoft SMTPSVC(6.0.3790.4675); Fri, 27 Jan 2012 10:11:09 -0800 Received: from SACEXCMBX04-PRD.hq.netapp.com ([169.254.6.193]) by vmwexceht01-prd.hq.netapp.com ([10.106.76.239]) with mapi id 14.01.0355.002; Fri, 27 Jan 2012 10:10:31 -0800 From: "Eggert, Lars" To: Jim Gettys Thread-Topic: [Bloat] Traffic patterns for AQM testing.... Bursty behaviour of video players. Thread-Index: AQHM3Ra336haZHregk+gZF8ByvATRJYhCf6A Date: Fri, 27 Jan 2012 18:11:04 +0000 Message-ID: References: <4F21B1E8.9010504@freedesktop.org> <4F22DA7F.6090302@freedesktop.org> In-Reply-To: <4F22DA7F.6090302@freedesktop.org> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: yes X-MS-TNEF-Correlator: x-originating-ip: [10.104.60.115] Content-Type: multipart/signed; boundary="Apple-Mail=_DF597514-44F3-441D-8507-F591D1A37023"; protocol="application/pkcs7-signature"; micalg=sha1 MIME-Version: 1.0 X-OriginalArrivalTime: 27 Jan 2012 18:11:09.0488 (UTC) FILETIME=[0B941300:01CCDD1F] Cc: bloat Subject: Re: [Bloat] Traffic patterns for AQM testing.... Bursty behaviour of video players. 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: Fri, 27 Jan 2012 18:11:49 -0000 --Apple-Mail=_DF597514-44F3-441D-8507-F591D1A37023 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=us-ascii On Jan 27, 2012, at 9:10, Jim Gettys wrote: > I fear these may be large line rate bursts > hitting the broadband head end, and then propagating to the home router > queues... under some circumstances (e.g. the RTO gets driven up due to > bloat, so the congestion window doesn't come down very fast in the idle > periods). Help from people who know TCP better than I do (which isn't > all that well), gratefully appreciated. Justin McCann already provided the reference to RFC2861... 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