| Nortel still signing up customers Nortel has signed up "hundreds" of new customers since filing for Chapter 11 bankruptcy protection three weeks ago, and is reconsidering its decision to sell its Metro Ethernet Networks business. Nortel quits WiMAX deal with Alvarion Nortel has pulled out of a deal to resell WiMAX equipment from Alvarion and help fund development of Alvarion's WiMAX base stations. Evolution of the router From its gestation period 40 years ago until now, the router has matured along with the Internet to become the linchpin of all communications - data, voice and video. Its application seems limitless as the Internet is enhanced to support more and more features and services. Here's a look at the story of the router. Buy a router: save the world? John Chambers's advice to fix the economy … keep investing in Internet technologies. Spanning tree - oh woe is me blogger Scott Hogg is dismayed over the massive number of dysfunctional spanning tree configurations that he encounters. QoS: Class-based Weighted Fair Queuing This is not a new technology and yet Cisco Subnet blogger Dennis Hartmann says that it remains a neglected or misconfigured router methodology. The Nexxus switch and the Virtual Port-Channel (vPC) Lead network engineer Kamal Vyas discusses the vPC – the so-called spanning tree killer, complete with colorful diagrams. This you gotta see. OSPF Puzzle Part III - Costs Come on and join this mind bender. Cisco training guru Wendell Odom challenges you to figure out how to configure the costs on the interfaces In his OSPF example (and there's a bonus as this info is within the scope of a CCNA exam). QoS and queuing: how it works In data networks, queues form when the output interface is congested and advanced queuing algorithms are needed to determine which packets in the queue get priority, explains blogger Dennis Hartman. Security problems still plague retailers' wireless LANs A large-scale scan by Motorola's AirDefense group has found that wireless LAN vulnerabilities in retailer networks though much improved over last year, are still all too common, despite repeated, widely-publicized wireless security breaches. From Cisco Subnet
Buy a router: save the world? John Chambers's advice to fix the economy … keep investing in Internet technologies; Plus, Brad Reese charts 16 years of Cisco's quarterly earnings and then asks, is Cisco management doing a good job?; and Cisco Tweeps on Twitter, the official list. February giveaways from Cisco Subnet and Microsoft Subnet
Up for grabs: One American Express gift card worth $250 from Global Knowledge; One Microsoft training course worth $2,995 from Global Knowledge; 15 copies each of the hot book titles Voice over IP Security, and CCNA Wireless Official Exam Certification Guide and 15 copies of Exchange Server 2007 How-To: Real Solutions for Exchange Server 2007 SP1 Administrators. Get all the entry details here. | 
Survey takes a look at where IT pros do their social networking.
How to protect laptop data at your local Wi-Fi hot spot.
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