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Cisco Wireless LAN Controller Configuration Guide
OL-17037-01
Appendix D Troubleshooting
Uploading Core Dumps from the Controller
Uploading Core Dumps from the Controller
To help troubleshoot controller crashes, you can configure the controller to automatically upload its core
dump file to an FTP server after experiencing a crash. This section provides instructions to do so using
the controller CLI.
Using the CLI to Upload Controller Core Dumps
Using the controller CLI, follow these steps to enable the controller to automatically upload a core dump
file of the controller.
Step 1
To enable or disable the controller to generate a core dump file following a crash, enter this command:
config coredump {enable | disable}
Step 2
To specify the FTP server to which the core dump file is uploaded, enter this command:
config coredump
ftp
server_ip_address
filename
where
•
server_ip_address
is the IP address of the FTP server to which the controller sends its core dump
file, and
Note
The controller must be able to reach the FTP server.
•
filename
is the name that the controller uses to label the core dump file.
Step 3
To specify the username and password for FTP login, enter this command:
config coredump username
ftp_username
password
ftp_password
Step 4
To save your changes, enter this command:
save config
Step 5
To see a summary of the controller’s core dump file, enter this command:
show coredump summary
Monitoring Memory Leaks
This section provides instructions for troubleshooting hard-to-solve or hard-to-reproduce memory
problems.
Caution
The commands in this section can be disruptive to your system and should be run only when you are
advised to do so by the Cisco Technical Assistance Center (TAC).
