... medium-sized enterprises and branch offices. Designed for 802.11n performance, Cisco 2500 series wireless controller is ... of service (QoS) for voice and video. Delivering 802.11n performance and scalability the 2500 series provides low ... 802.3, IEEE 802.3u, IEEE 802.1Q, IEEE 802.11b, IEEE 802.11a, IEEE 802.11g, IEEE 802.1x, IEEE 802.11i, IEEE 802.11h, IEEE 802.11e, IEEE 802.11nConnectivity Technology ...