Allied Telesis AT-FS970M Series - Manual (Page 68)

Chapter 1: AlliedWare Plus Command Line Interface
68
You can also combine individual ports and port ranges in the same
command, as illustrated in these commands, which enter the Port
Interface mode for ports 5 to 11 and ports 16 and 18:
awplus> enable
awplus# configure terminal
awplus(config)# interface port1.0.5-port1.0.11,port1.0.16,
port1.0.18
awplus(config-if)#