300-365 · Question #107
Which IEEE standard allows for the client-AP handshake to be completed before the client roams?
The correct answer is C. 802.11r. IEEE 802.11r (Fast BSS Transition) enables the authentication handshake to occur before the client physically moves to a new AP, reducing roaming latency.
Question
Which IEEE standard allows for the client-AP handshake to be completed before the client roams?
Options
- A802.11v
- B802.11e
- C802.11r
- D802.11k
How the community answered
(45 responses)- A2% (1)
- B2% (1)
- C96% (43)
Why each option
IEEE 802.11r (Fast BSS Transition) enables the authentication handshake to occur before the client physically moves to a new AP, reducing roaming latency.
802.11v (BSS Transition Management) provides mechanisms for APs to suggest roam targets to clients but does not perform the handshake in advance.
802.11e defines QoS enhancements and the WMM framework for wireless traffic prioritization, not roaming procedures.
802.11r defines Fast BSS Transition (FT), which allows the 4-way key handshake and PMK caching to be completed with the target AP before the client disassociates from the current AP. This pre-roaming negotiation eliminates the full re-authentication delay, making it the only standard that completes the handshake prior to the actual roam event.
802.11k (Radio Resource Management) enables clients to request neighbor reports to identify candidate APs but does not pre-complete the authentication handshake.
Concept tested: IEEE 802.11r Fast BSS Transition roaming
Source: https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-10/config-guide/b_cg810/fast_secure_roaming.html
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