Case study: NY college plans 11n WLAN rollout
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The students and staff of a small college in upstate New York will become a living laboratory for deployment of a campus-wide draft 802.11n wireless network.
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How the BBC News website's technology team covered the launch of a free Wi-fi network in Norwich
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Columnist Craig J. Mathias takes a look at the Wi-Fi Alliance's unprecedented decision to develop a specification based on a draft of the 802.11n standard and concludes it was the right thing to do.
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Next week, the Wi-Fi Alliance will release Wi-Fi Multimedia, or WMM, an interim standard that will provide early quality-of-service functionality for multimedia equipment based on the emerging 802.
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Software radio could offer an elegant solution to a vexing problem: how to have a single handset communicate across multiple networks.
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(InfoWorld) - Duke University said Friday that widely publicizedÂ problems with its campus wireless networkÂ it had originally blamed on Apple iPhones had instead been traced to Cisco Systems hardware. A fix has been applied, the school added. For their part, Apple supporters blasted Duke for falsely accusing the new iPhone for playing a part in the flap. First reported last Wednesday by Computerworld's sister publication Network World, the problem involved failures of up to 30 wireless access points at a time across Duke's Durham, N.C. campus. The cause, school IT administrators thought then, was the built-in Wi-Fi adapters on iPhones, which were pinging the hotspots with thousands of address requests each second. The relatively small number of iPhones registered to Duke's wireless LAN -- just 150, according to the Network World story -- were nevertheless hogging bandwidth with endless address requests and taking down access points for 10 to 15 minutes at a stretch. Friday, Duke's chief information officer, Tracy Futhey, posted a note on the university's Web site thatÂ fingeredÂ an unspecified Cisco issue for the trouble. "Cisco worked closely with Duke and Apple to identify the source of this problem, which was caused by a Cisco-based network issue," said Futhey. "Cisco has provided a fix that has been applied to Duke's network and there have been no recurrences of the problem since." Futhey also took exception with news reports that she said made it sound like Duke's wireless infrastructure was falling apart, and that the iPhone wouldn't work with its network. "The reality is that a particular set of conditions made the Duke wireless network experience some minor and temporary disruptions in service," she argued. "Those conditions involve our deployment of a very large Cisco-based wireless network that supports multiple network protocols. "Earlier reports that this was a problem with the iPhone in particular have proved to be inaccurate," Futhey added. Those reports, however, were largely based on a statement by another Duke administrator, Kevin Miller, assistant director of communications infrastructure with the school's Office of Information Technology, who pinned the blame on the iPhone. "I don't believe it's a Cisco problem in any way, shape or form," Miller told Network World on July 18. Neither Duke nor Cisco spelled out the applied fix or the root cause. Cisco did not immediately reply to a request for additional information. Not surprisingly, Apple and iPhone supporters were angry at Duke for rushing to judgment. "They should not have 'announced' that it was the iPhone until after the problem was resolved," said a user identified as "jwilkinson1977" on Apple's iPhone support forum. "It's just bad publicity and wasn't warranted." Traditional college rivalries even played a part in the Duke bashing. "I think Dook [sic] owes Apple an apology!!!!!!!" wrote another user, pegged as Evangelist on the same thread. "Of course, I am a graduate of UNC-Chapel Hill, if that makes a difference.....AND IT DOES! I knew all along that the percentile was like 99.99999999999988998 that Dook had either done or not done something." Computerworld is an InfoWorld affiliate.
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Compatible. Maybe. The Wi-Fi Alliance is to start certifying 802.11n products in March 2007, despite the fact the standard won't be completed until the following year, according to CNet.â¦
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Although the IEEE 802.11n wireless standard isn't expected to be ratified before early 2008, Intel plans to include a prestandard version of the wireless networking technology in its Centrino chips next year.
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802.11n wireless networking came closer to becoming an actual standard on Tuesday, as the IEEE said that 'Draft 2.0' received more than the required 75 percent supermajority required for the process to move forward.
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One of the big selling points of Apple&#39;s iPhone is the ability to connect to the Internet via Wi-Fi, but I.T. pros at Duke University might say otherwise. The iPhones on campus are flooding the school&#39;s wireless LAN with as many as 18,000 access requests per second, temporarily knocking out access points for 10 to 15 minutes at a time, according to Kevin Miller, Duke&#39;s assistant director of communications infrastructure.
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It will be more than a year before the 802.11n wireless LAN standard is officially ratified, but columnist Craig Mathias claims that the time to deploy this new technology is now.
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New York is on the verge of becoming a wireless city, but not everyone is happy about the prospect.
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Wi-Fi users can now enjoy high-speed wireless connections at distances up to 50% greater than existing solutions, thanks to two new 54g wireless LAN chipsets, introduced by Broadcom Corporation.
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Missouri's Lincoln University has deployed Alcatel-Lucent's higher education offering to transform its campus-wide communications network. The new network enables the university to offer a secure, 'always on' learning environment, and streamline communications among administrators and staff.
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Blog: A report has surfaced that iPhones are apparently knocking out Duke University's Wi-Fi network with an abnormally high number of requests to connect.
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Businesses looking to deploy wireless LANs will soon have an alternative to installing access points on the ceiling. Aruba Wireless Networks, a Wi-Fi systems vendor, and Ortronics Inc.
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InfoWorld - During a presentation at the IEEE Globecom 2006 Expo in San Francisco on Tuesday, Alan Crouch, director and general manager at Intel's Communications Technology Lab told the audience to expect Intel to put a pre-standard version of IEEE 802.11n Wi-Fi into its Centrino chips by next year.