Cisco Cisco 2106 Wireless LAN Controller Release Notes

The following components are part of the Cisco UWN Solution and are compatible in this release:

Software release 4.2.176.0 for all Cisco controllers and lightweight access points

Cisco autonomous to lightweight mode upgrade tool release 3.0

Cisco Wireless Control System (WCS) software release 4.2.110.0

Only Cisco WCS 4.2.110.0 supports controllers running software release 4.2.176.0.

Cisco WCS Navigator 1.1.110.0

Location appliance software release 3.1.42.0

Cisco 2700 Series Location Appliances

Cisco 2000 Series Wireless LAN Controllers

Cisco 2100 Series Wireless LAN Controllers

Cisco 4400 Series Wireless LAN Controllers

Cisco Wireless Services Module (WiSM) for Cisco Catalyst 6500 Series Switches and Cisco 7600 
Series Routers

Cisco Wireless LAN Controller Network Module for Cisco Integrated Services Routers

Catalyst 3750G Wireless LAN Controller Switches

Cisco 3201 Wireless Mobile Interface Card (WMIC)

Cisco Aironet 1000, 1100, 1130, 1200, 1230AG, 1240, 1250, and 1300 Series Lightweight Access 
Points

Only Cisco Aironet 1200 Series Access Points that contain 802.11g (AIR-MP21G) or 
second-generation 802.11a radios (AIR-RM21A or AIR-RM22A) are supported for use with 
controller software releases. The AIR-RM20A radio, which was included in early 1200 
series access point models, is not supported. To see the type of radio module installed in your 
access point, enter this command on the access point: show controller dot11radio n, where 
n is the number of the radio (0 or 1).

The 1250 series access points have a hardware limitation where beacons can only be output 
at intervals that are multiples of 17 milliseconds. When these APs are configured for a 
100-millisecond beacon interval, they transmit beacons every 102 milliseconds. Similarly, 
when the beacon interval is configured for 20 milliseconds, these APs transmit beacons 
every 17 milliseconds.