Cisco Systems 3.2 Manuale Utente

Each controller can support lightweight access points across multiple floors and buildings 
simultaneously. However, full functionality of the Cisco Wireless LAN Solution is realized when it 
includes multiple controllers. A multiple-controller system has the following additional features:

Autodetecting and autoconfiguring RF parameters as the controllers are added to the network.

 and 

Automatic access point failover to any redundant controller with a reduced access point load (refer 
to the 

The following figure shows a typical multiple-controller deployment. The figure also shows an optional 
dedicated Management Network and the three physical connection types between the network and the 
controllers.