User's Manual Part 1

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6. DSCP setting : you can set your own DSCP value here.
DiffServ Code Point : you can select code value.
Service Type : you can select their service type.
Function : PRI
Function data- Priority : 1~6
DSCP marking : you can add your inbound / outbound packets a DCSP marking, please
see one example as below.
Ex. Please mark CS3 when an packet in/ out via UDP port 5060.
Once you saved the QoS rule, system will show you the rule as below, you can add
another new rule accordingly.