Cisco Cisco Wireless Services Module 2 (WiSM2) Notas de publicación

When you upgrade to the latest software release, the software on the access points associated with the 
controller is also automatically upgraded. When an access point is loading software, each of its LEDs 
blinks in succession.

Predownloading a 7.2.103.0 version on a Cisco Aironet 1240 access point is not supported when 
upgrading from a controller version prior to 7.2.103.0. If predownloading is attempted to a Cisco 
Aironet 1240, an AP disconnect will occur momentarily. 

The Cisco 5500 Series Controllers can download the 7.2.103.0 software to 500 access points 
simultaneously.

Do not power down the controller or any access point during the upgrade process; otherwise, you 
might corrupt the software image. Upgrading a controller with a large number of access points can 
take as long as 30 minutes, depending on the size of your network. However, with the increased 
number of concurrent access point upgrades supported, the upgrade time should be significantly 
reduced. The access points must remain powered, and the controller must not be reset during this 
time.

If you want to downgrade from the 7.2.103.0 release to a previous release, do either of the following:

Delete all WLANs that are mapped to interface groups and create new ones.

Y

N

N

N

N

N

N

N

N

N

N

Y

N

Y

N

Y

Y

N

Y

Y

Y

N

Y

Y

Y

Y

N

Y

Y

Y

Y

Y

N

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

Y

Y