Which function does a controller typically NOT perform in a wireless network?

In a wireless network, a controller primarily functions to manage and optimize the network's infrastructure. One of its key responsibilities is managing access point configurations, enabling centralized control over the wireless environment. Additionally, controllers are involved in collecting performance data from access points, which is critical for monitoring the network's health and performance.

Providing redundancy for link failures is also a normal function of a controller, as it plays a role in ensuring network reliability by facilitating seamless transitions in case of a failure in connectivity.

However, executing user applications is typically not a role associated with a wireless controller. Controllers are focused on network management and optimization tasks rather than running end-user applications. This distinction highlights the primary objective of the controller, which is to maintain efficient network operations instead of directly handling user-level processing or application execution.