For even the most cloud-wary network engineer, the idea of controlling massive wireless LANs from a centralized data center may hold some appeal. Cisco Systems is banking on the idea that network managers won't be able to resist its new Cisco Flex 7500 Series Cloud Controller, a cloud-based WLAN controller that enables enterprises to centrally control thousands of access points (APs) and mobile clients across hundreds of branch offices from one private cloud. Other companies have gone the cloud-based WLAN management route, but few have the ability to manage WLANs across so many branch offices. What's more, the Flex 7500 supports Layer 2 wireless networking, secure guest access and rogue AP detection. If that doesn't tempt network engineers into the cloud, we're not sure what will.