... communication between lightweight access points and other wireless LAN controllers to deliver centralized security policies, wireless intrusion prevention system (IPS) capabilities, ... AES-CCMP, AES-CCMCompliant StandardsIEEE 802.3, IEEE 802.3u, IEEE 802.1D, IEEE 802.1Q, IEEE 802.11b, IEEE 802.11a, IEEE 802.11d, IEEE 802.11g, X.509, IEEE 802.11h, IEEE 802.11nExpansion / ConnectivityExpansion Slot(s) ...