The keyword refers specifically to the Cisco 5508 Wireless LAN Controller (AIR-CT5508-K9) running software image 8.3.150.0 . This hardware and software combination is a staple in enterprise networking, designed to manage high-density wireless environments with up to 500 access points and 7,000 clients . Hardware Foundation: Cisco 5508 Series (AIR-CT5508-K9)
A standard 1RU rack-mountable device with redundant power supply options for maximum reliability. Software Version: 8.3.150.0 Features
Features sub-second stateful failover of all access points and clients from primary to standby controllers to ensure continuous uptime.
It supports a range of base licenses for 12, 25, 50, 100, 250, or 500 access points , which can be expanded as your network grows.
The software image was a significant maintenance release within the 8.3 train, providing enhanced stability and feature support for the 5500 Series Controllers .