The maximum value that the layer-4 destination port number in
the packet must have in order to match this classifier entry.
This value must be equal to or greater than the value specified
for this entry in cTapStreamIpSourceL4PortMin.
If both cTapStreamIpSourceL4PortMin and
cTapStreamIpSourceL4PortMax are at their default values, the
port number is effectively unused.