The Cisco Catalyst 3750G Integrated Wireless LAN Controller adds wireless LAN controller functions to the stackable, highly resilient Cisco Catalyst 3750G Series Switches to improve operating efficiency and security, mobility, and ease of use for business-critical wireless LANs. The Cisco Catalyst 3750G Integrated Wireless LAN Controller delivers centralized security policies, wireless intrusion prevention system (IPS) capabilities, award-winning RF management, QoS, and Layer 3 fast secure roaming for WLANs. It provides the control, security, redundancy, and reliability that network managers need to scale and manage their wireless networks as easily as they scale and manage their traditional wired networks. As a member of the Cisco Wireless LAN Controller family, the Cisco Catalyst 3750G Integrated Wireless LAN Controller works in conjunction with Cisco Aironet lightweight access points, the Cisco Wireless Control System (WCS), and the Cisco Wireless Location Appliance to support mission-critical wireless data, voice, and video applications. It provides real-time communication between lightweight access points and other wireless LAN controllers to deliver a secure and unified wireless solution.