A customer has noticed that Client Band Select is enabled and no clients are utilizing the 5 GHz band.
Which three parameters must be met to ensure that wireless clients use the 5 GHz band? (Choose three.)
Click on the arrows to vote for the correct answer
A. B. C. D. E. F.CDE.
The question is asking which three parameters must be met to ensure that wireless clients use the 5 GHz band, despite the Client Band Select feature being enabled and no clients currently utilizing the 5 GHz band.
A. Ensure that channel bonding is enabled on the WLAN: Channel bonding allows for increased throughput by bonding two 20 MHz channels to create a 40 MHz channel. This can potentially increase the number of channels available for 5 GHz devices, which can lead to increased utilization of the 5 GHz band.
B. Ensure that the co-channel interference has not exceeded -85 dBm: Co-channel interference occurs when multiple access points (APs) are broadcasting on the same channel and interfering with each other. If interference levels are too high, clients may avoid using the 5 GHz band. -85 dBm is a common threshold for acceptable levels of interference.
C. Ensure that the UNII-2 extended channels are enabled on the 802.11a radios: The UNII-2 extended channels are a set of channels in the 5 GHz band that are only available in certain regions. Enabling these channels can increase the number of channels available for use by 5 GHz devices, potentially increasing their utilization of the 5 GHz band.
D. Ensure that the client is receiving RSSI above the minimum band select RSSI threshold: RSSI stands for Received Signal Strength Indicator and is a measure of the strength of the signal between the AP and the client. The minimum band select RSSI threshold is a configurable value that determines the minimum signal strength required for a client to be considered for connection to the 5 GHz band. If the client is not receiving a strong enough signal, it may not connect to the 5 GHz band.
E. Ensure that the client is dual-band capable: Not all devices are capable of connecting to both the 2.4 GHz and 5 GHz bands. If the client is not dual-band capable, it will not be able to connect to the 5 GHz band.
F. Ensure that the WLAN has 802.11a enabled: 802.11a is the standard that defines the use of the 5 GHz band for Wi-Fi. If 802.11a is not enabled on the WLAN, clients will not be able to connect to the 5 GHz band.
Therefore, the correct answers are A, C, and D.