Setting of the point-to-point state of this port.
auto(0). The state becomes `true(1)' if the port is a
full-duplex physical port, or an ETS TTP with a maximum of
one terminating channel. Otherwise the state becomes
`false(2)'.
true(1). The port is a point-to-point port.
false(2). The port is not a point-to-point port.