TP-Link TL-SG3109 User Manual page 92

1. Click System > Quality of Service > Queue Mapping > DSCP to Queue. The DSCP to Queue Page opens:
Figure 122: DSCP to Queue Page
The CoS Settings Page page contains the following fields:
DSCP In — Displays the incoming packet's DSCP

value.
Queue — Defines the traffic forwarding queue to

which the DSCP priority is mapped. Four traffic priority
queues are supported.
2. Modify the Queue values.
3. Click
updated.
 
. The DSCP to Queue mapping is