Cisco Networking Simplified, Second Edition

Chapter . Network Admission Control

Combating Virus Outbreaks

Mobility has given corporate employees huge productivity gains. They can access corporate applications from home, while traveling, and via wireless hotspots at coffee shops and airports. Always-on broadband networks have also led to huge strides in productivity. Employees can work from home in the evenings or even during extended periods when they are unable to get to work, such as during an ice storm.

But mobility and flexibility come at a price. Increasingly, corporate computer assets including laptops, PDAs, and handheld computers are used in public environments—home, Wi-Fi hotspots, hotels—which are shared networks. With shared networks also comes the opportunity for more frequent ...