Cisco Aironet 1140 Series Panduan Memulai - Halaman 16
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Table 1
LED Status Indications (continued)
Message
Type
Boot loader warnings
Boot loader errors
Cisco IOS errors
Troubleshooting the Access Point Join Process
Access points can fail to join a controller for many reasons: a RADIUS authorization is pending;
self-signed certificates are not enabled on the controller; the access point's and controller's regulatory
domains don't match, and so on.
Controller software enables you to configure the access points to send all CAPWAP-related errors to
a syslog server. You do not need to enable any debug commands on the controller because all of the
CAPWAP error messages can be viewed from the syslog server itself.
The state of the access point is not maintained on the controller until it receives a CAPWAP join
request from the access point. Therefore, it can be difficult to determine why the CAPWAP discovery
request from a certain access point was rejected. In order to troubleshoot such joining problems
16
Status
LED
Blinking blue
Red
Blinking green
Red
Blinking red and blue
Blinking red and off
Red
Cycling through blue,
green, red, and off
Message
Meaning
Configuration recovery in progress (MODE
button pushed for 2 to 3 seconds)
Ethernet failure or image recovery (MODE
button pushed for 20 to 30 seconds)
Image recovery in progress (MODE button
released)
DRAM memory test failure
FLASH file system failure
Environment variable failure
Bad MAC address
Ethernet failure during image recovery
Boot environment failure
No Cisco image file
Boot failure
Software failure; try disconnecting and
reconnecting unit power
General warning; insufficient inline power