Traditional networks often separate wired and wireless traffic into silos. The Cisco 3850 WLC functionality utilizes the "Converged Access" model. This integrates the wireless controller function directly into the switch's ASIC (Application-Specific Integrated Circuit).
Then, the critical fix. He had to tell the switch to trust the self-signed certificate of the APs, which the new firmware was flagging as a mismatch. cisco 3850 wlc
💡 Because the switch sees wireless traffic as native packets, it can apply granular QoS policies at the port level. This ensures that critical applications like Voice over IP (VoIP) maintain high quality, even over Wi-Fi. even over Wi-Fi.