To exploit the Quality of Service function provided by this device, you need to enable QoS first and create queues which are associated with egress interface and transmission priority. Then you can classify the packets from ingress interfaces by configuring various classification criteria. If the packets match all of the specified criteria, they will be transmitted in priority through egress interface which are defined in specified queue.
Quality of Service:
Disabled
Enabled
Default DiffServ Codepoint(DSCP):
Default DSCP is used to overwrite the corresponding DSCP value of all egress packets that do not match any classification rules. If the Auto Marking is selected, the DSCP value will be marked according to 802.1p value.
Queue Configuration
Those queues configured here will be used by traffic classification rules to place packets from ingress interfaces appropriately. Lower numbers of queue priority imply higher transmission priority.