Starting with macOS High Sierra and existing in Cisco wireless controller release 8.3 is support for QoS Fastlane. Any hardware compatible with macOS High Sierra supports QoS Fastlane. Find more information about High Sierra compatibility for your specific Mac model.
About QoS Fastlane
Wireless application traffic in enterprise environments often needs to be prioritized by its type. For example, due to real-time application constraints, voice over Wi-Fi traffic needs a higher priority than Safari web traffic.
Various standards exist to help network devices agree on how different types of traffic are marked to make sure they are prioritized. QoS Fastlane greatly simplifies this agreement process so that network congestion is minimized and time-sensitive traffic (like voice or video) is delivered on time.
To choose which macOS apps have their traffic prioritized by QoS Fastlane, you must configure the network with a configuration profile.
Cisco wireless controller models compatible with release 8.3 support QoS Fastlane. Cisco access points compatible with 802.11n and 802.11ac support QoS Fastlane.
Find more information about QoS and QoS Fastlane: