The Private VLAN port mode on this port.
nonPrivateVlan(1) -- this port is configured to be a
non-Private-VLAN port.
host(2) -- this port is configured to be
a Private-VLAN host port, i.e., private
port.
promiscuous(3) -- this port is configured to be
a Private-VLAN promiscuous port.
trunk(4) -- this port is configured to be a
Private-VLAN trunk port.