For a production environment:

Now came the moment of no return. Alex clicked . The web interface went white. The "Power" LED on the front of the 2504 began to blink amber.

To minimize downtime, use the feature found under Wireless > Access Points > Global Configuration . This allows APs to download the new firmware in the background while they are still serving clients. When you finally reboot the WLC, the APs simply swap partitions and reboot, cutting down the "dark" time from minutes to seconds.

Click . You will be prompted to save your configuration—do so now. Step 5: Post-Upgrade Verification Once the controller reboots (this can take 5-10 minutes):

# Transfer the new image (example using TFTP) (Cisco Controller) >transfer download mode tftp (Cisco Controller) >transfer download datatype code (Cisco Controller) >transfer download serverip 192.168.1.100 (Cisco Controller) >transfer download path ./ (Cisco Controller) >transfer download filename AIR-CT2500-K9-8-5-182-0.aes (Cisco Controller) >transfer download start

Cisco 2500 Series Wireless Controller Firmware Update -

For a production environment:

Now came the moment of no return. Alex clicked . The web interface went white. The "Power" LED on the front of the 2504 began to blink amber. cisco 2500 series wireless controller firmware update

Click . You will be prompted to save your configuration—do so now. Step 5: Post-Upgrade Verification Once the controller reboots (this can take 5-10 minutes): The "Power" LED on the front of the