An engineer configures a WLAN with fast transition enabled.
Some legacy clients fail to connect to this WLAN.
Which feature allows the legacy clients to connect while still allowing other clients to use fast transition based on their OUIs?
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A. B. C. D.C.
Fast transition is a feature that allows clients to transition quickly between access points (APs) while maintaining a secure connection. It is based on the IEEE 802.11r standard, which defines a fast transition method that reduces the time required for clients to roam between APs.
When fast transition is enabled on a WLAN, some legacy clients may not be able to connect to the network. This is because fast transition requires specific hardware and software support, and some older clients may not have this capability.
To address this issue, Cisco introduced a feature called Over-the-DS (Distribution System) Fast Transition. This feature allows legacy clients to connect to a WLAN with fast transition enabled by using the existing infrastructure without requiring any additional hardware or software support. Over-the-DS fast transition is compatible with both Fast BSS Transition (FT) and Fast Initial Link Setup (FILS) fast transition methods.
The other options mentioned in the question (802.11k, adaptive R, and 802.11v) are unrelated to fast transition and would not address the issue of legacy clients failing to connect. However, it's worth noting that these features are all related to WLAN performance and management:
802.11k is a standard that defines Radio Resource Management (RRM) capabilities, which allow APs to optimize WLAN performance by measuring and reporting on channel usage, signal strength, and other factors.
Adaptive R is a feature that allows APs to dynamically adjust their transmit power based on the number of clients and the level of interference in the area. This can help to reduce interference and improve overall WLAN performance.
802.11v is a standard that defines a set of features for WLAN management, including client information, network capabilities, and performance metrics. These features can be used to optimize WLAN performance and troubleshoot issues.