300-430 Question 248
Single answerA network engineer is configuring a Cisco Wireless LAN Controller (WLC) to support a high-density wireless deployment in a corporate environment. The engineer needs to optimize the WLC settings for seamless client roaming between access points without interruptions. Which configuration option should the engineer enable on the Cisco WLC to meet this requirement?
- A
Fast Transition (802.11r)
- B
Load Balancing
- C
Band Select
- D
DHCP Address Assignment
Show answer and explanation
Correct answer: A
Explanation
To ensure seamless client roaming in high-density wireless deployments, enabling Fast Transition (802.11r) on the WLC is critical. This feature reduces the time required for client authentication and reassociation when moving between access points, providing a smoother user experience. Other options like Load Balancing and Band Select address different optimization challenges but do not directly impact roaming performance.
- A. Correct.
Fast Transition (802.11r) is specifically designed to optimize seamless roaming between access points by reducing the authentication and reassociation times, which is crucial in high-density environments.
- B. Incorrect.
Load Balancing ensures clients are evenly distributed across access points but does not directly optimize client roaming between access points.
- C. Incorrect.
Band Select helps steer clients to the 5 GHz band when possible but does not address seamless roaming between access points.
- D. Incorrect.
DHCP Address Assignment allows the WLC to handle IP address allocation but is unrelated to improving roaming performance.