The AIR-CT5500-K9-8-3-150-0 represents a specific hardware and software combination within the Cisco 5508 Wireless Controller series. This platform has long served as the backbone for medium-to-large enterprise wireless networks, providing the management and scalability required for high-density environments. Understanding the Hardware: Cisco 5508 Series
As of 2025, Cisco no longer provides TAC support for 8.3.x images unless you have a legacy support contract. However, the 8.3.150.0 image is widely available on Cisco’s Software Download portal (requires valid contract). air-ct5500-k9-8-3-150-0
Here is the useful breakdown of what this file name means and whether you should use it. End of Life: Hardware EOL was April 30, 2022
Key Features and Specifications
8.3.150.0 was one of the last stable versions for the original hardware.Connectivity: Equipped with 8 SFP uplink ports for high-throughput network integration. Connectivity : Equipped with 8 SFP uplink ports
show run-config startup-commands: Useful for identifying the web-auth port conflict mentioned above.
AIR-CT5500-K9-8-3-150-0 refers specifically to a software image file ( Cisco 5508 Wireless LAN Controller (WLC) , running version Cisco Community
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