Dell S4820T Configuration Manual page 327

Figure 34. PFC and ETS Applied to LAN, IPC, and SAN Priority Traffic
QoS Traffic Classification: The service-class dynamic dot1p command has been used in Global
Configuration mode to map ingress dot1p frames to the queues shown in the following table. For more
information, refer to QoS dot1p Traffic Classification and Queue
The following describes the dot1p-priority class group assignment
dot1p Value in the Priority Group Assignment
Incoming Frame
0 LAN
1 LAN
2 LAN
Data Center Bridging (DCB)
Assignment.
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