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11.1.3 Configuration Port QOS 
Page Wizard: QOS → Layer 2 QOS → Configuration Port QOS 
The meanings of key items in the page are shown in the table below. 
Service levels, range <0-3>, the greater the value is, the higher 
the    service level will be 
Scheduling policy of port transmit queue. Optional:   
wrr (Weighted Round Robin policy) 
sp (strict priority policy) 
Change the Tag priority of data frame based on the following 
information: 
Destination MAC, source MAC, VLAN ID. 
Note:  It  is  required  to  create  an  appropriate  static  MAC 
address table and VLAN, and specify the priority. 
Parameter is optional: 
-(indicating not enabled) 
override (enable) 
Map the original Tag priority of data frame 
(in  receiving) to  the  new  Tag priority (in 
DSCP--- Queue Mapping Setting