|For AIwan only. Setting this to full(1) puts the AIwan Ethernet
interface into Full Duplex mode (sends and receives simultaneously).
Setting this to half(2) puts the AIwan Ethernet interface into
Half Duplex mode (sends OR receives, but not simultaneously -- this
means that collisions are possible). In general, half duplex works
fine for switches AND hubs, whereas full duplex mode should only be
used with switches or other interfaces that are full duplex capable.