From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ob0-x232.google.com (mail-ob0-x232.google.com [IPv6:2607:f8b0:4003:c01::232]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id C928121F27A for ; Tue, 3 Mar 2015 22:07:43 -0800 (PST) Received: by obcva2 with SMTP id va2so4818594obc.6 for ; Tue, 03 Mar 2015 22:07:43 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=v98vAaL8Yt/it19meOZp/qKsDFMDXtDU6lYS5Nh/EEA=; b=fmNU4ukDYoNMC3hZrUc4+d5OR4z7YwmLp3Nb52c9hOh10DYiMhi9/2eOEq7+YQjmlb AXlF+06URmh67NA8PWtucNmVkN/IfAimEvxWPe25MlVhYaGTORVchM6aYaJ2zHg3CmID fvMVMmkKfbcdQQJitSJtHVUQpwybJVinMe3mhVJtNc9LB6JR3jSiUnqtwUxlDltAzog1 vrYAd0LjrsgkskyZbCrdGG/UB0uaUaHshOX0FU4claH5CRp4K9N5jjbJjZwMM7Na8sM2 1ya3Z+uqlhXAnnIOyTqaLcfWxrdXqGWAMWzF6OxVTDdY5LJ+Jf6EMUlTAOC1aGMQowTJ T8Mg== MIME-Version: 1.0 X-Received: by 10.182.144.136 with SMTP id sm8mr1800485obb.63.1425449263290; Tue, 03 Mar 2015 22:07:43 -0800 (PST) Received: by 10.202.51.66 with HTTP; Tue, 3 Mar 2015 22:07:43 -0800 (PST) Date: Tue, 3 Mar 2015 22:07:43 -0800 Message-ID: From: Dave Taht To: "aqm@ietf.org" Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Cc: Vishal Misra , bloat Subject: [Bloat] the cisco pie patent and IETF IPR filing 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, 04 Mar 2015 06:08:13 -0000 Two items: A) The IETF IPR filing http://datatracker.ietf.org/ipr/2187/ points to the wrong patent: 13/874,500. A google search for that patent number brings up http://www.google.com/patents/US20130239255" It is ironically relevant to the discussions at hand, as that one concerns= : Abstract: "Provided are methods of increasing the tolerance of a plant to abiotic stresses and/or increasing the biomass and/or increasing the yield of a plant by expressing within the plant an exogenous polynucleotide homologous to SEQ ID NO:13." ... As I consider myself a near-vegetable, and am 40 pounds heavier, and not responding particularly well to antibiotics, after participating for the past several years on all the ietf mailing lists I just got off of. I am sure that upon acceptance of pie in the ietf, that making that particular patent more generally available for all to use would probably have similar effects on others. The correct patent number for PIE, 13/874,600, is here: http://www.google.com/patents/US20140328175 I would appreciate that the IPR filing be corrected. In the meantime, here's some more great NSFW george carlin routines! https://www.youtube.com/watch?v=3DtVlkxrNlp10 B) Vishal Misra (author of PI) gave me pointers to his PI papers recently (and he had NO idea at all his work was used for pie! - he got his marketing department to issue a press release about it: http://engineering.umass.edu/news/got-bufferbloat-umass-amherst-research-be= hind-fix ) I usually have a pretty strict policy about never reading patents, but I read all those papers [1], and both! patents above. I had not fully realized that the PI-AQM work went as far back as 2001. The PI update equation and the PIE update equation, look pretty darn similar, just the meanings of two variables, changed. C) I am kind of curious if any working code for the original PI algorithm exists for linux? D) oh, never mind, I will blog about the rest one day. [1] still prefer fq_codel. --=20 Dave T=C3=A4ht Let's make wifi fast, less jittery and reliable again! https://plus.google.com/u/0/107942175615993706558/posts/TVX3o84jjmb