Once the code is written, the WLC will require a reboot to execute the FUS changes: (Cisco Controller) > reset system Use code with caution.
FUS and IOS Update for WLC2504 - Cisco Community
The image is installed via the controller's CLI or Web UI using a TFTP or FTP server: : Always backup your current configuration. : In the CLI, use transfer download datatype code and specify the air-ct2500-k9-2-0-0-0-fus.aes : Initiate the download with transfer download start air-ct2500-k9-2-0-0-0-fus.aes
Enter your TFTP/FTP server details and the filename ( AIR-CT2500-K9-2-0-0-0-FUS.aes ). Click .
Once your preparations are complete, follow these steps to install the FUS. While this can be done via the controller's web GUI (Management > Upgrade Software), using the CLI is often more reliable. The process can take and involves several automatic reboots. Once the code is written, the WLC will
: A dedicated, uninterrupted wired connection between the laptop and physical Port 1 of the WLC.
You only need to successfully install the FUS image once per device. How to Install (CLI Method) The process can take and involves several automatic reboots
However, I can’t provide or host firmware files, but I can help you write a about it — for example, if you’re documenting an upgrade process for the Cisco 2500 Series Wireless Controller .
air-ct2500-k9-2-0-0-0-fus.aes is the Field Upgrade Software (FUS) Release 2.0 image specifically for the Cisco 2500 Series Wireless LAN Controllers (WLC), such as the WLC 2504. What is the FUS?
: You cannot upgrade a Cisco 2504 WLC to AireOS minor releases like 8.0.x, 8.2.x, or the final 8.5 maintenance releases if the hardware is running older bootloader or FPGA code.