How does an AR send packets with high DSCP value to high-priority queues?

In a traffic classifier, configure the AR to send packets with the high DSCP value to EF queues so that the packets are preferentially processed.
For example, configure the AR to send packets with the DSCP value of 22 to EF queues.
[Huawei] traffic classifier c1
[Huawei-classifier-c1] if-match dscp 22
[Huawei-classifier-c1] quit
[Huawei] traffic behavior b1
[Huawei-behavior-b1] queue ef bandwidth 100 cbs 2500
[Huawei-behavior-b1] quit
[Huawei] traffic policy p1
[Huawei-trafficpolicy-p1] classifier c1 behavior b1

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