This object indicates the status of the port.
unknown(1) - indicates either a state of off with the
reason being not known or the state is
on.
offAdmin(2) - indicates the port is administratively
disabled.
offPowerManagement(3) - indicates the port is off due to power
management.
offIllegalClass(4) - indicates the port is off because the PD
is of illegal class.
offDetectionProgress(5)- indicates the port is off because the PD
detection is in progress.
offHardwareError(6) - indicates the port is off because of
hardware error.
offNonStandardPd(7) - indicates the port is off because the PD
is a non standard one.