Lightweight Access Point Split MAC Architecture
Lightweight Access Point Protocol (LWAPP) changed the way that WLAN deployments were managed with the concept of a "split MAC"—the ability to separate the real-time aspects of the 802.11 protocol from most of its management aspects.
Lightweight Access Point—Split MAC Architecture
Cisco has designed a centralized, lightweight access point wireless architecture to address the unique RF management needs of enterprises. A core component is its split MAC architecture, where the processing of 802.11 data and management protocols and access point capabilities is distributed between a lightweight access point and a centralized WLAN controller.
More specifically, time-sensitive activities, such as beacon handling, handshakes with clients, MAC layer encryption, and RF monitoring, are handled in the access point. All other functions are handled in the WLAN controller, where systemwide visibility is required. These functions include IEEE 802.11 management protocol, frame translation, and bridging functions, as well as systemwide policies for user mobility, security, QoS, and, perhaps most importantly, realtime RF management.
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