What is a wireless lan controller?

A wireless LAN controller (WLC) is a device that manages and controls multiple access points (APs) in a wireless network, allowing for centralized management of wireless settings, security policies, and user access. It simplifies network administration by enabling features such as load balancing, roaming, and seamless firmware updates across connected APs. WLCs are commonly used in enterprise environments to enhance scalability, security, and performance of wireless networks.