This article applies to all the controllers running AOS version 6.3.0.0 or higher.
Two methods of Fast BSS transition can be used: a.Over-the-Air Fast BSS Transition b.Over-the-DS Fast BSS TransitionAruba only supports “Over-the-air Fast BSS Transition method.How does Over-the-air Fast BSS transition works 802.11r enabled Access Points advertise this capability in Beacon and Probe response frames by including a Mobility Domain Information Element (MDIE).
The 802.11r amendment attempts to reduce latency by combining the 802.11 authentication and re-association frames with the 4-Way Handshake frames. So,the four key message frames are no more needed when the client roams, thus speeding up the roaming process.
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