Allied Telesis AT-FS970M Series - Manual (Page 1682)

Chapter 99: Quality of Service (QoS) Commands
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In the following example, VLAN 50 becomes the voice VLAN on port
1.0.14, and DSCP is trusted on traffic ingressing onto this port:
awplus> enable
awplus# configure terminal
awplus(config)# interface port1.0.14
awplus(config-if)# auto-qos-med voice 50 trust dscp
In the following example, VLAN 100 becomes the voice VLAN on port
1.0.13:
awplus> enable
awplus# configure terminal
awplus(config)# interface port1.0.13
awplus(config-if)# auto-qos-med voice 100
In the following example, DSCP is trusted on traffic ingressing on port 17:
awplus> enable
awplus# configure terminal
awplus(config)# interface port1.0.17
awplus(config)# auto-qos-med voice trust dscp