The Cisco Catalyst 6500 Series Wireless Services Module (WiSM) provides unparalleled security, mobility, redundancy, and ease of use for business-critical wireless LANs (WLANs). It delivers the most secure wireless system available for enterprise-scale WLANs. As a Cisco Catalyst 6500 Series module, it delivers centralized security policies, wireless intrusion prevention system (IPS) capabilities, award-winning RF management, quality of service (QoS), and Layer 3 fast secure roaming for WLANs.