Controller Based WLANs

Question:  How do I disable high-throughput (HT) mode for an AP that supports 802.11n?

Product and Software: This article applies to all Aruba controllers and Aruba APs that can support 802.11n. This article applies to ArubaOS 3.3 and later.
You might have APs that support 802.11n, but you do not yet want to enable high-throughput (HT) mode (40 MHz channel). To disable HT mode on a per SSID basis or a per radio basis, make the following configuration changes.
To disable HT mode for the whole radio, make the following configuration change to the relevant radio profile:
rf dot11a-radio-profile "no_HT"
no high-throughput-enable

and apply it to the relevant AP group:

ap-group "default"
dot11a-radio-profile no_HT

To disable HT mode on a per SSID basis, make the following configuration change to the relevant HT SSID profile:

wlan ht-ssid-profile no_HT
no high-throughput-enable

and apply it to the relevant SSID profile:
wlan ssid-profile legacy
ht-ssid-profile no_HT