From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from out3-smtp.messagingengine.com (out3-smtp.messagingengine.com [66.111.4.27]) (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 EDD8121F277 for ; Sun, 20 Jul 2014 11:41:40 -0700 (PDT) Received: from compute4.internal (compute4.nyi.mail.srv.osa [10.202.2.44]) by gateway1.nyi.mail.srv.osa (Postfix) with ESMTP id 47CE22148F for ; Sun, 20 Jul 2014 14:41:38 -0400 (EDT) Received: from frontend1 ([10.202.2.160]) by compute4.internal (MEProxy); Sun, 20 Jul 2014 14:41:38 -0400 DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=hmh.eng.br; h=date :from:to:cc:subject:message-id:references:mime-version :content-type:in-reply-to; s=mesmtp; bh=Na3Fp90HgZXwXNMxjUTUrpdq tKE=; b=oGFga15QLk21G8wPUeoPVmbcfFp43kP1XrWroaQsGEWjnuL65bVroQyj zWwsZhFpaS3apsNCeTfGmUlUXR4edqRKK7tUsL5MvEy/Z9NkOXznFuTnsOh1jQYB RZCVmH5FajRyCsbKPwnIcMUrHcc7h9XPW0sq+mYthlNk8g13y0A= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d= messagingengine.com; h=date:from:to:cc:subject:message-id :references:mime-version:content-type:in-reply-to; s=smtpout; bh=Na3Fp90HgZXwXNMxjUTUrpdqtKE=; b=UM+oyYLM53z5VKYYnqQg4u6GatEy RtevihELWkWxf7VWnceZubxVlYoDlDBZc5mpeho8kbc1W1Bg1tB3Av8pnEZgfJ7v PJzx/Bs8wagsBhfVMqGaeH5mA0EZuF9tqjWR2ELgv9C/MGXRdi9d8wntw8gCjiND cSkjC6ehCfUlobI= X-Sasl-enc: u7pW3Rf+UwuQQ9wPiPm70dXjma/t/ujklxANq6yDTmuU 1405881697 Received: from khazad-dum.debian.net (unknown [177.194.3.78]) by mail.messagingengine.com (Postfix) with ESMTPA id EDF4FC00003; Sun, 20 Jul 2014 14:41:37 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by localhost.khazad-dum.debian.net (Postfix) with ESMTP id 8B0F89016F04; Sun, 20 Jul 2014 15:41:36 -0300 (BRT) X-Virus-Scanned: Debian amavisd-new at khazad-dum.debian.net Received: from khazad-dum.debian.net ([127.0.0.1]) by localhost (khazad-dum2.khazad-dum.debian.net [127.0.0.1]) (amavisd-new, port 10024) with LMTP id lNIB2SDk6CoP; Sun, 20 Jul 2014 15:41:32 -0300 (BRT) Received: by khazad-dum.debian.net (Postfix, from userid 1000) id 395A99016F02; Sun, 20 Jul 2014 15:41:32 -0300 (BRT) Date: Sun, 20 Jul 2014 15:41:32 -0300 From: Henrique de Moraes Holschuh To: Rich Brown Message-ID: <20140720184132.GA18864@khazad-dum.debian.net> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-GPG-Fingerprint1: 4096R/39CB4807 C467 A717 507B BAFE D3C1 6092 0BD9 E811 39CB 4807 X-GPG-Fingerprint2: 1024D/1CDB0FE3 5422 5C61 F6B7 06FB 7E04 3738 EE25 DE3F 1CDB 0FE3 User-Agent: Mutt/1.5.21 (2010-09-15) Cc: cerowrt-devel , bloat Subject: [Cerowrt-devel] SIMET: nationwide bw/latency/jitter test effort in Brazil X-BeenThere: cerowrt-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: Development issues regarding the cerowrt test router project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 20 Jul 2014 18:41:41 -0000 On Sun, 20 Jul 2014, Rich Brown wrote: > Now if we could get them to a) allow longer/bigger tests to circumvent > PowerBoost, and b) include a latency measurement so people could point out > their bufferbloated equipment. You may find this interesting: http://simet.nic.br/ NIC.br has it deployed nation-wide in Brazil, with remote endpoint servers in most public IXPs ("PTTMetro" IXPs, which are also managed by NIC.br). The end user client is available over the web (java applet), and also as a mobile app for Android and iOS. There's also an openwrt-based firmware for a very inexpensive home-router box ("SIMET box"), which they've been giving out to the general public so as to increase their test coverage. SIMET does bandwidth (TCP and UDP) as well as latency and jitter measurements, but it doesn't attempt to measure bufferbloat so I never thought of mentioning it around here. One interesting detail is that SIMET measurements are trusted (as in "can have legal standing in Brazil"): the SIMET system is certified[1] by INMETRO, Brazil's national body for scientific, industrial and legal metrology. There's not much material in english about SIMET, unfortunately. Outside of Brazil, I like the Berkeley ICSI Netalyzr (http://netalyzr.icsi.berkeley.edu/). VERY comprehensive measurements and several network diagnostics... and it does measure worst-case steady-state latency (aka bufferbloat). [1] "certified" is not exactly correct. I don't know an exact word in english for "has been verified to be correctly calibrated in accordance with the official measurement standards and procedures", in portuguese: "aferido". -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh