Allied Telesis AT-FS970M Series - Manual (Page 1680)

Chapter 99: Quality of Service (QoS) Commands
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In the following example, VLAN 50 becomes the voice VLAN on port
1.0.22, and DSCP is trusted on traffic ingressing onto this port:
awplus> enable
awplus# configure terminal
awplus(config)# interface port1.0.22
awplus(config-if)# auto-qos voice 50 trust dscp
In the following example, VLAN 100 becomes the voice VLAN on port
1.0.15:
awplus> enable
awplus# configure terminal
awplus(config)# interface port1.0.15
awplus(config-if)# auto-qos voice 100
In the following example, DSCP is trusted on traffic ingressing onto port
1.0.30:
awplus> enable
awplus# configure terminal
awplus(config)# interface port1.0.30
awplus(config-if)# auto-qos voice trust dscp