Cisco Cisco 2106 Wireless LAN Controller Release Notes

When you change the antenna gain on either the 1522 or 1524 access point radio using the controller 
GUI (Wireless > Access Points > Radios) or CLI (config 802.11a antenna extAntGain), the following 
message appears: “Changing antenna gain can make current channel unusable. The AP will be rebooted. 
A new channel must be chosen once the AP rejoins. If no channel is available with the new antenna gain, 
it will return back to the original value. Are you sure you want to continue?” (CSCsl75327).

When you run a linktest that might oversubscribe the link using the controller GUI (Wireless > All APs 
> Access_Point_Name > Neighbor_Info) or CLI (config mesh linktest), the following message appears: 
“Warning! Data Rate (100 Mbps) is not enough to perform this link test on packet size (2000 bytes) and 
(1000) packets per second. This may cause AP to disconnect or reboot. Are you sure you want to 
continue?” (CSCsm11349).

The following controller features are not supported on mesh networks:

Multi-country support

Load-based CAC (Mesh networks support only bandwidth-based, or static, CAC.)

High availability (fast heartbeat and primary discovery join timer)

EAP-FASTv1 and 802.11x authentication

Access point join priority (Mesh access points have a fixed priority.)

Locally significant certificate

Location-based services

This section lists 

 and 

 for Cisco controllers and lightweight access 

points.

These caveats are open in controller software release 5.2.157.0.

CSCsd54928—The CPU ACL is unable to block LWAPP packets that are destined for the IP address 
of the dynamic interface.

Workaround: None.

CSCsd84706—Containment information for ad-hoc rogue access points is not shown on the 
controller GUI.

Workaround: Use the controller CLI.