Avaya 106760804 Command Reference Manual page 519

Sample Output
Systems
Document No. 10-300090, Issue 1
The following command sets ports 4 through 12 on the module in slot 6 to
classify bridged IP traffic by DSCP:
(configure)# set port use-diffserv 6/4-12 on
P550R and P880, 80-series modules only.
P580 and P882.
80-Series QoS
23-31