Dell PowerEdge FN I/O Module Configuration Guide 9.10(0.0)

Before you configure PFC and ETS on a switch see the priority group setting taken into account the following default settings:

DCB is enabled.

PFC and ETS are globally enabled by default.

The default dot1p priority-queue assignments are applied as follows:

Dell(conf)#do show qos dot1p-queue-mapping 
                                 Dot1p Priority : 0  1  2  3  4  5  6  7
                                 Queue : 0  0  0  1  2  3  3  3  
                                 Dell(conf)#
                                 
                              

PFC is not applied on specific dot1p priorities.

ETS: Equal bandwidth is assigned to each port queue and each dot1p priority in a priority group.