Cisco 4400 Series User Manual

D-2
Cisco Wireless LAN Controller Configuration Guide
OL-17037-01
Appendix D Troubleshooting
Interpreting LEDs
Interpreting LEDs
Interpreting Controller LEDs
Refer to the quick start guide for your specific controller for a description of the LED patterns. You can
find the guides at this URL:
http://www.cisco.com/en/US/products/hw/wireless/index.html
Interpreting Lightweight Access Point LEDs
Refer to the hardware installation guide for your specific access point for a description of the LED
patterns. You can find the guides at this URL:
http://www.cisco.com/en/US/products/hw/wireless/index.html
System Messages
Table D-1 lists some common system messages and their descriptions. For a complete list of system
messages, refer to the Cisco Wireless LAN Controller System Message Guide, Release 5.2.
Table D-1 System Messages and Descriptions
Error Message Description
apf_utils.c 680: Received a CIF field without the
protected bit set from mobile xx:xx:xx:xx:xx:xx
A client is sending an association request on a
security-enabled WLAN with the protected bit set
to 0 (in the Capability field of the association
request). As designed, the controller rejects the
association request, and the client sees an
association failure.
dtl_arp.c 480: Got an idle-timeout message from
an unknown client xx:xx:xx:xx:xx:xx
The controller’s network processing unit (NPU)
sends a timeout message to the central processing
unit (CPU) indicating that a particular client has
timed out or aged out. This normally occurs when
the CPU has removed a wireless client from its
internal database but has not notified the NPU.
Because the client remains in the NPU database, it
ages out on the network processor and notifies the
CPU. The CPU finds the client that is not present
in its database and then sends this message.
STATION_DISASSOCIATE Client may have intentionally terminated usage or
may have experienced a service disruption.
STATION_DEAUTHENTICATE Client may have intentionally terminated usage or
it could indicate an authentication issue.
STATION_AUTHENTICATION_FAIL Check disable, key mismatch or other
configuration issues.

Cisco 4400 Series Specifications

General

Brand	Cisco
Model	4400 Series
Category	Controller
Language	English