By almost any measure, Cisco Systems is the biggest fish in the networking pond. Thanks to more than 130 acquisitions, a brisk pace of internal development and a much-discussed new organizational structure that the company is using to attack a slew of new markets, Cisco's reach extends from the consumer to the enterprise and deep into service provider networks. The company offers everything from personal video cameras to high-end telepresence systems, set-top video boxes to, lately, servers for the data center, in addition to more traditional network gear like routers and switches.