High-Density Wireless Network Configuration

A.

In a high-density wireless network, it's important to encourage clients to use the 5 GHz spectrum as it provides more channels and higher bandwidth, which reduces congestion and improves overall performance. To achieve this goal, the Band Select feature of the Cisco Wireless LAN Controller (WLC) should be incorporated into the design.

Band Select is a feature of the Cisco WLC that encourages dual-band clients to use the 5 GHz band over the 2.4 GHz band. It works by sending a Band Select announcement frame to the client device, requesting it to switch to the 5 GHz band if it supports it. The announcement frame is sent periodically to the client, and if the client doesn't switch to the 5 GHz band after a certain number of attempts, it will be allowed to connect to the 2.4 GHz band.

RRM (Radio Resource Management) is another feature of the Cisco WLC that can be used to optimize the use of the wireless spectrum. RRM automatically adjusts the power and channel of the access points (APs) to provide optimal coverage and reduce interference. While RRM can help ensure a high-quality wireless connection, it doesn't specifically encourage clients to use the 5 GHz band.

Cisco Centralized Key Management is a feature that simplifies the management of wireless encryption keys. It can be used to centrally manage and distribute encryption keys to APs, which can improve security and simplify key management. However, it doesn't directly impact client behavior regarding which wireless band they use.

Load balancing is a feature that can distribute wireless clients across multiple APs to ensure optimal performance and reduce congestion. While load balancing can help optimize the use of the wireless spectrum, it doesn't specifically encourage clients to use the 5 GHz band.

In summary, the Band Select feature of the Cisco WLC should be incorporated into the design of a high-density wireless network to encourage clients to use the 5 GHz band.