How to check if 802.11b protection mode is enabled on Access Point (AP)?
When 802.11 b protection is enabled, its allow 802.11b station to associate to the Access Point (AP).
To check the configured value, type the following command from the CLI.
(Aruba2400) #show ap details ip-addr 10.100.101.51 | include 802.11b
802.11b Protection Enabled Configuration