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.