How does a Split-MAC architecture differ from an Autonomous AP?

In a Split-MAC architecture, certain functions of the wireless access point (AP) are offloaded to a Wireless LAN Controller (WLC), distinguishing it from an Autonomous AP. An Autonomous AP is fully self-contained, meaning it handles all the management and control data locally, without relying on a centralized controller. In contrast, in a Split-MAC architecture, while the AP still performs some role in managing wireless traffic, a portion of the processing load (such as management tasks and control plane functions) is shifted to the WLC. This division allows for better scalability and centralized management, making it easier to manage multiple APs within a network.

This architecture provides benefits like improved network performance and efficiency, as the WLC can handle tasks such as client authentication, roaming, and load balancing, which would otherwise overburden the individual APs in an Autonomous setup. By centralizing intelligence in the WLC while retaining some functionality at the AP, this approach enhances overall network capabilities.