From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-out5.uio.no (mail-out5.uio.no [IPv6:2001:700:100:10::17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by huchra.bufferbloat.net (Postfix) with ESMTPS id 523D921F3AF for ; Mon, 25 Aug 2014 00:25:20 -0700 (PDT) Received: from mail-mx1.uio.no ([129.240.10.29]) by mail-out5.uio.no with esmtp (Exim 4.80.1) (envelope-from ) id 1XLoeL-0007IE-M4; Mon, 25 Aug 2014 09:25:09 +0200 Received: from boomerang.ifi.uio.no ([129.240.68.135]) by mail-mx1.uio.no with esmtpsa (TLSv1:AES128-SHA:128) user michawe (Exim 4.80) (envelope-from ) id 1XLoeL-0003Ni-AS; Mon, 25 Aug 2014 09:25:09 +0200 Mime-Version: 1.0 (Apple Message framework v1283) Content-Type: text/plain; charset=us-ascii From: Michael Welzl In-Reply-To: Date: Mon, 25 Aug 2014 09:25:06 +0200 Content-Transfer-Encoding: quoted-printable Message-Id: <250B684F-76DC-43B4-A01A-78EE70D955A9@ifi.uio.no> References: <91696A3A-EF44-4A1A-8070-D3AF25D0D9AC@netapp.com> <64CD1035-2E14-4CA6-8E90-C892BAD48EC6@netapp.com> <4C1661D0-32C6-48E7-BAE6-60C98D7B2D69@ifi.uio.no> <8651E326-171F-472F-9456-920A9E43367D@gmail.com> <4265A8B2-10DA-455A-BA61-41907752365D@gmail.com> <5DEDBF8E-EA25-4CEC-B235-1F0122CAB228@gmail.com> To: David Lang X-Mailer: Apple Mail (2.1283) X-UiO-SPF-Received: X-UiO-Ratelimit-Test: rcpts/h 6 msgs/h 2 sum rcpts/h 7 sum msgs/h 3 total rcpts 19462 max rcpts/h 44 ratelimit 0 X-UiO-Spam-info: not spam, SpamAssassin (score=-6.0, required=5.0, autolearn=disabled, RP_MATCHES_RCVD=-1.05, UIO_MAIL_IS_INTERNAL=-5, uiobl=NO, uiouri=NO) X-UiO-Scanned: B67D513A6414E70385600A06FDAC6239D19D391F X-UiO-SPAM-Test: remote_host: 129.240.68.135 spam_score: -59 maxlevel 80 minaction 2 bait 0 mail/h: 2 total 5870 max/h 17 blacklist 0 greylist 0 ratelimit 0 Cc: bloat Mainlinglist Subject: Re: [Bloat] sigcomm wifi 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: Mon, 25 Aug 2014 07:25:21 -0000 >> The conditions are probably different in each direction. The AP is = more likely to be sending large packets (DNS response, HTTP payload) = while the client is more likely to send small packets (DNS request, TCP = SYN, HTTP GET). The AP is also likely to want to aggregate a TCP SYN/ACK = with another packet. >=20 > If your use case is web browsing or streaming video yes. If it's = gaming or other interactive use, much less so. There's worse. Every time I'm on a public wifi network and send an email = with an attached file (say, a paper I forward to someone), I wonder what = that does to all the others on the network... these things happen. Dropbox sync's in the background. Maybe some people = try to use skype with video even when the link conditions are bad. Do = such behaviors have a DoS'ish effect? They really shouldn't... Cheers, Michael