Cisco router at fault for Duke&#39;s wireless issues
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After blaming Apple&#8217;s iPhone for its wireless networking problems, Duke University said earlier today that it hadn&#8217;t been able to pinpoint what the problem was. Now, it has been confirmed that a Cisco router was at fault for the networking issues.
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Electronics maker Fujitsu and Internet technology giant Cisco have agreed to work together on developing high-end routers used for advanced Internet networks in Japan, the two companies announced Monday.
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Cisco said that its IP Phone allows unconstrained Gigabit Ethernet-enabled bandwidth from the network to desktop phone. Cisco&#39;s Catalyst 6500 Supervisor Engine 32 has been enhanced to allow customers to enable
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Cisco Systems&#39; $2 billion push into the SMB space is forcing it to re-evaluate the role it has assigned its upstart Linksys division.
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BlackBerry mobile data services were disrupted Monday afternoon due to a problem with Research In Motion&#39;s infrastructure, apparently affecting customers of all major North American mobile operators, an AT&amp;T Wireless spokesman said.RIM told AT&amp;T the problem began at about 3:30 p.m. Eastern Time and that the Waterloo, Ontario, company was working to identify and solve the problem, said AT&amp;T spokesman Mark Siegel. RIM officials were not immediately available for comment.After 6 p.m. Eastern, users on a BlackBerry Internet message board began reporting that service had returned to normal.The popular smart phones rely on both a cellular network for transport and RIM&#39;s own network for pushing e-mail to end-users. Last month, problems with AT&amp;T&#39;s network disrupted service to some of its subscribers with BlackBerrys, as well as iPhone users.Several users on various mobile networks reported connection problems on Monday afternoon on the message board.BlackBerry users may not be able to send or receive messages, browse the Internet, or use the BlackBerry Internet Service Web site, according to a message from RIM that some users on the board posted. In addition, BlackBerry Enterprise Servers may not be able to connect to RIM&#39;s infrastructure, and carriers and resellers may not be able to create accounts or provision services, the notice said. The outage happened because &quot;a component of the network infrastructure is experiencing a service interruption.&quot;Zenprise, a maker of service management software that monitors BlackBerry service and notifies administrators of problems, detected the outage and notified customers at 3:23 p.m. Eastern, according to Ahmed Datoo, Zenprise&#39;s vice president of marketing. After running a series of tests, Zenprise determined that the root of the problem was in RIM&#39;s infrastructure. The Fremont, California, company, which counts about 100 enterprises and SMBs among its customers, has not determined the total scope of the outage. BlackBerry service for Zenprise&#39;s own customers has been going up and down during the outage, Datoo said.
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Two new switches from Cisco demonstrate a sweeping change in the company&#39;s assumptions about the technical knowledge of network managers.
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Duke stumbled and LSU and Ohio State were there to take advantage.
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(InfoWorld) - Cisco Systems Inc. is clearing the air around enterprise wireless LANs with a partner that specializes in radio spectrum analysis. The company is offering Cognio Inc.'s Spectrum Expert for Wi-Fi, a tool for studying interference around a wireless LAN, to complement its own Wireless Control System. Together, the tools are intended to help enterprises lay out wireless LANs and take care of rogue wireless gear and interference from a variety of sources, including non-Wi-Fi devices such as microwave ovens. Cognio's product is available now through Cisco's regular sales channels. Interference and security are two key issues for enterprises that want to set up comprehensive wireless LANs for demanding new applications, namely VOIP (voice over Internet Protocol). Cognio is one of many specialist companies that offer tools for working out those issues. Cisco, which is betting big on the spread of Wi-Fi from vertical industries to general businesses, wants to make sure its networks deliver a good experience. The Spectrum Expert is a CardBus device that plugs into a Windows notebook and works with software to detect and identify interfering devices and help a technician locate the device. Wireless LAN security systems from AirMagnet Inc., Fluke Networks Inc. and WildPackets Inc. use Cognio technology. Cisco's Wireless Control System is a server-based application for planning, designing, monitoring and managing wireless LANs. It can support thousands of access points around an enterprise and carry out tasks including user tracking and security monitoring, according to Cisco.ADVERTISEMENTMAKE SOA REAL WITH IBM WEBSPHERE PODCASTStreamline processes and maximize efficiency within a proven service oriented architecture. Take back control of your business processes with IBM WebSphere.
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By Hochmuth, Phil  When some network architects deploy thousands of LAN ports for users, they use chassis switches at the LAN edge for easier management and failover. Duke University, however, finds better network management and cost savings through stacking switches.
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Cisco Systems Inc. CSCO.O, the  biggest maker of network gear for directing Internet traffic,  on Monday said it will introduce a new line of low-end routers  in the coming weeks aimed at winning more corporate business.
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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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Software update patches bug in wireless drivers that left systems vulnerable.
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Blog: It turns out Apple's new device wasn't the culprit for wireless network outages at Duke University, as reports alleged earlier this week.
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Company reports a decline in its router business during its quarterly earnings, which barely met analyst expectations.
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We&#8217;re showing ethernet going up and down on our server tonight. We&#8217;ve put in a ticket but it may not be resolved until tomorrow (Friday) morning. If the site is slow or unresponsive, please sit tight with us. Thanks! -Scott Share This
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SAN JOSE, Calif. _ Just days after Cisco System
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Cisco&#39;s Tokyo R&amp;D center will focus on advanced Internet technologies such as IPv6, multicast, and wireless, in addition to improving existing security and quality-of-service (QoS) technologies.