Extreme Networks Summit WM3000 Series Reference Manual page 154

Network Setup
With a drastic increase in bandwidth absorbing network traffic (VOIP, multimedia etc.), the
importance of data prioritization is critical to effective network management.
Refer to the following fields within the QoS Mapping screen to optionally revise the existing settings
to in respect to the data traffic requirements for this WLAN.
Access Category to
802.1p
802.1p to Access
Category
154
Optionally revise the 802.1p Prioritization
prioritize the network traffic expected on this WLAN.
Set the access category accordingly in respect to its importance for this
WLAN's target network traffic.
for each access category to
Summit WM3000 Series Controller System Reference Guide