9-12
Cisco Wireless LAN Controller Configuration Guide
OL-17037-01
Chapter 9 Managing Controller Software and Configurations
Upgrading Controller Software
Note
The default values of 10 retries and a 6-second timeout should work correctly without any
adjustment. However, you can change these values. To do so, enter the maximum number of
times that the TFTP server attempts to download the software for the
retries
parameter and
the amount of time (in seconds) that the TFTP server attempts to download the software for
the
timeout
parameter.
If you are using an FTP server, also enter these commands:
•
transfer download username
username
•
transfer download password
password
•
transfer download port
port
Note
The default value for the
port
parameter is 21.
Step 11
Enter
transfer download start
to view the updated settings and answer
y
to the prompt to confirm the
current download settings and start the software download. Information similar to the following appears:
Mode........................................... TFTP
Data Type...................................... Code
TFTP Server IP.................................... xxx.xxx.xxx.xxx
TFTP Packet Timeout............................... 6
TFTP Max Retries............................... 10
TFTP Path...................................... <directory path>
TFTP Filename.................................. xxx.aes
Are you sure you want to start? (y/n)
y
TFTP Code transfer starting.
TFTP receive complete... extracting components.
Writing new bootloader to flash.
Making backup copy of RTOS.
Writing new RTOS to flash.
Making backup copy of Code.
Writing new Code to flash.
TFTP File transfer operation completed successfully.
Please restart the switch (reset system) for update to complete.
Step 12
Enter
reset system
to save the code update to non-volatile NVRAM and reboot the controller. The
controller completes the bootup process.
Step 13
After the controller reboots, repeat
to install the remaining file (either the 5.2 controller
software or the Cisco Unified Wireless Network Controller Boot Software 5.2.157.0 ER.aes file).
Step 14
Enter
config wlan enable
wlan_id
to re-enable the WLANs.
Step 15
For Cisco WiSMs, re-enable the controller port channel on the Catalyst switch.
Step 16
Re-enable your 802.11a and 802.11b/g networks.
Step 17
If desired, reload your latest configuration file to the controller.
Step 18
To verify that the 5.2 controller software is installed on your controller, enter
show sysinfo
and look at
the Product Version field.
Step 19
To verify that the Cisco Unified Wireless Network Controller Boot Software 5.2.157.0 ER.aes file is
installed on your controller, enter the
show sysinfo
command on the controller CLI and look at the Field
Recovery Image Version field.
