Dahua DH-PFS4212-8GT-96 Web Operation Manual page 54

Click Save.
Step 3
Select Advanced > Seldom-used > QoS > DSCP-Based.
Step 4
Step 5 When setting DSCP to be 4 and 8, the CoS is 2 and DPL are 2 and 1.
1) When DSCP are 4 and 8, select Trust to enable the function. See Figure 3-60.
2) When setting DSCP to be 4, CoS is 2 and DPL is 2.
3) When setting DSCP to be 8, CoS is 2 and DPL is 1.
The larger the CoS of DSCP, the higher the priority. The corresponding port packet will
pass the egress port first.
Figure 3-59 Port classification
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