Fat AP: Fat AP can be used independently. At present, some fat APS can be converted to each other by upgrading IOS (upgrading IOS to thin AP).

Characteristics of fat AP: Fat AP is relative to bodybuilding AP. FATAP integrates the functions of WLAN physical layer, user data encryption and authentication, QoS, network management, roaming technology and other application layers. The wireless network solution of fat AP can directly form fat AP on the basis of wired network. Fat AP equipment is complex in structure and difficult to be managed centrally.

Fit ap: Thin ap needs to be used with the controller. No controller, just a piece of iron. At present, some thin APS can be converted to each other by upgrading IOS (by upgrading IOS to become fat AP).

Features of thin AP: Fit AP is relative to fat AP. It is an AP with only encryption and RF functions. Single function, unable to work independently. The whole Fit AP wireless network solution is based on wired network and consists of wireless controller and Fit AP. "Zero configuration" on Fit AP, all configurations are concentrated on the wireless controller. This also makes the Fit AP scheme more convenient for centralized management, and thus has functions that Fat AP does not have, such as three-tier roaming and issuing permissions based on users.