What is CSA?

Aruba Employee
Aruba Employee

Product and Software: This article applies to all Aruba Mobility Controllers and ArubaOS 3.x and later.


Channel switch announcement (CSA) is part of 802.11h. 

When an AP changes channel, it advertises certain information in Element ID=37 to indicate which channel it is going to and when. 

This information helps the client to jump to the same channel and saves scanning time. 

Not all client drivers support this feature, however, the latest drivers from Atheros, Broadcom, and Intel support this feature.

Version history
Revision #:
1 of 1
Last update:
‎07-10-2014 06:15 AM
Updated by:
Labels (1)
Search Airheads
Showing results for 
Search instead for 
Did you mean: