This objects specifies age out period after which mobile station entry will be removed for dual band AP. When AP sees probe request from any mobile station in both 2.4GHz and 5GHz band AP will know that mobile station is capable of operating on both band. Dual band capable mobile stations are recorded in a dual band table which is stored in internal database of controllers. This record are kept to make sure 5GHz capable mobile station should join 5GHz band only. Entries in the table will be age out to make space for new entries. The AP will not respond to the dual band mobile station's 2.4GHz probe until is removed from the dual band table. AP fills the dual band table in the following order until it is full: 1) mobile station with 5GHz probe that have associated to 2.4GHz. 2) mobile station with 5GHz probe that also have 2.4GHz probes. 3) mobile station with just 5GHz probe detected and 5GHz association.