From owner-freebsd-wireless@FreeBSD.ORG Tue Nov 13 20:01:06 2012 Return-Path: Delivered-To: freebsd-wireless@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 16FD6917 for ; Tue, 13 Nov 2012 20:01:06 +0000 (UTC) (envelope-from ed@kikkert-online.nl) Received: from out5-smtp.messagingengine.com (out5-smtp.messagingengine.com [66.111.4.29]) by mx1.freebsd.org (Postfix) with ESMTP id D05E18FC15 for ; Tue, 13 Nov 2012 20:01:04 +0000 (UTC) Received: from compute6.internal (compute6.nyi.mail.srv.osa [10.202.2.46]) by gateway1.nyi.mail.srv.osa (Postfix) with ESMTP id 9A60A2054B for ; Tue, 13 Nov 2012 15:00:58 -0500 (EST) Received: from frontend2.nyi.mail.srv.osa ([10.202.2.161]) by compute6.internal (MEProxy); Tue, 13 Nov 2012 15:00:58 -0500 DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d= messagingengine.com; h=from:content-type:subject:date:message-id :to:mime-version; s=smtpout; bh=5dNG7dCDcdKQC6J0oCOusaeKGI4=; b= rCoC017sAJCDjfucceEwTHxTD3VFt9Q4rmfmeYfzH701lIkmlLORnUgh6vY2uf6p 5nbWphWs9OzF8U+KjwFkQljkVVzE9lKpL5P2h5pvAzRSgQbceLsjTkIexFI7zBXw jdzORTq46enhJWAEE5va478xQOtCsd15sVeLs2NiiYo= X-Sasl-enc: A4KtY3/kim4XyGfvEoHuKSPKSbCu2SnfawlvHcO5pT8O 1352836858 Received: from [10.20.30.104] (unknown [62.238.204.95]) by mail.messagingengine.com (Postfix) with ESMTPA id 240E84827C3 for ; Tue, 13 Nov 2012 15:00:58 -0500 (EST) From: Ed Kikkert Subject: Network Event Kit serving 750+ devices at ApacheCon2012 Date: Tue, 13 Nov 2012 21:01:02 +0100 Message-Id: To: freebsd-wireless@freebsd.org Mime-Version: 1.0 (Apple Message framework v1278) X-Mailer: Apple Mail (2.1278) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.14 X-BeenThere: freebsd-wireless@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Discussions of 802.11 stack, tools device driver development." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 13 Nov 2012 20:01:06 -0000 During ApacheCon2012 The Network Event Kit has served 750+ devices, assisted in making ApacheCon2012 a big success. Our newly defined small cell approach designed by Marten Vijn delivered a stable wireless network on both the 2.4Ghz and 5Ghz bands. Main focus was to reduce the txpower to manageable levels, avoid overlap and pro-actively design rules for congestion control on the multiple OSI levels. This all is now implemented and has an proactive monitoring visualization designed by Rick van der Zwet. Having this amount of devices connected to the 20 access points is causing a lot of local broadcast and multicast traffic filling up the = network stack. This was during the first day growing that in the end it was = almost=20 impossible for other traffic to find it's way to the internet. To stop = this we=20 setup some OpenBSD PF rules on each of the access points and not on=20 the firewall. =20 During the event we got new insights with regards of manageability of ath(4) devices and their configuration, most worthy noticing are the finding with regards to the diversity setup of the cards with a single connected antenna in correlation with the 'stuck baecon; resetting' errors. Thanks to athstats(8) and other useful debugging tools provided by Sam Leffner in the FreeBSD source tree. In the next few weeks we will validate this results and post our findings to the various open source communities. Our newly logistics and deployment approach by Ed Kikkert has tackled successfully our issues with storage and distribution and greatly increased our visibility. Main focus was better communication by using peer-radio-devices and stricter task assignment causing more efficiently. A picture impression made by Roel Guldemond can be found at our new Network Kit Website (under construction): http://nek.wifisoft.org/site/node/9 Screen dumps from the proactive monitoring visualization made by Rick = van der Zwet. http://bsd.wifisoft.org/svn/projects/nek/images/monitoring/ =20 Source code and NanoBSD configuration is found at: http://bsd.wifisoft.org/svn/projects/nek/events/ApacheCon-2012/ All improvements will allows us to start powering 2000+ devices events Gerard Mourits will be continue his efforts of finding new interesting events for The Network Event Kit to power. The organisation likes to thank NLNet, InfraData and other sponsors for their continued support and the volunteers for their endeavoured enthusiasm and enlightening week. Best regards, Ed Kikkert - Secratary of WifiSoft Foundation=