The type of VLAN membership assigned to this port.
A port with static vlan membership is assigned to a
single VLAN directly. A port with dynamic membership
is assigned a single VLAN based on content of packets
received on the port and via VQP queries to VMPS.
A port with multiVlan membership may be assigned to
one or more VLANs directly.
A static or dynamic port membership is specified
by the value of vmVlan. A multiVlan port membership is
specified by the value of vmVlans.