Cisco Cisco 2106 Wireless LAN Controller Release Notes

Client reporting—This protocol is used by CCXv5 clients and the access point to exchange client 
information. Client reports are collected automatically when the client associates. There are four 
types of client reports:

Client profile—Provides information about the configuration of the client.

Operating parameters—Provides the details of the client’s current operational modes.

Manufacturers’ information—Provides data about the wireless LAN client adapter in use.

Client capabilities—Provides information about the client’s capabilities.

Roaming and real-time diagnostics—You can use roaming and real-time logs and statistics to 
solve system problems. The event log enables you to identify and track the behavior of a client 
device. It provides a log of events and reports them to the access point. There are three categories 
of event logs: 

Roaming log—Provides a historical view of the roaming events for a given client.

Robust Security Network Association (RSNA) log—Provides a historical view of the 
authentication events for a given client.

Syslog—Provides internal system information from the client. For example, it may indicate 
problems with 802.11 operation, system operation, and so on.

Monitor and Controller Menus—The options on these menus have been rearranged.

All APs page— This page now shows the access point mode, and the layout has been changed to a 
tabbed format.

AP Policies page—You can now search for an access point in the authorization list by MAC address.

Clients page—You can filter clients so that only clients that meet certain criteria (such as MAC 
address, access point name, WLAN profile, status, radio type, and/or WGB status) are displayed on 
the Clients page.

Summary page—You can view the default mobility group under Controller Summary.

Cisco Aironet 1250 Series Access Point—All controllers now support the Cisco Aironet 1250 
Series Access Point. This access point supports two (draft IEEE 802.11n version 2.0) radio modules: 
a 2.4-GHz radio and a 5-GHz radio. You can configure the radios separately, using different settings 
on each. For more information, refer to the Cisco Aironet 1250 Series Access Point Q&A at this 
URL:

Support for 16 BSSIDs—All Cisco lightweight access points support 16 BSSIDs per radio and a 
total of 16 wireless LANs per access point. In previous releases, they supported only 8 BSSIDs per 
radio and a total of 8 wireless LANs per access point.

These additional changes are applicable to controller software release 4.2.61.0:

The PMK cache lifetime timer, which is used to trigger reauthentication with the client when 
necessary, has been changed. It is now based on the timeout value received from the AAA server or 
the WLAN session timeout setting rather than on the default PMK cache lifetime default value of 
12 hours.