Order available ports in numerical order rather than alphabetical
order.

Signed-off-by: Min Chen <minchnew@gmail.com>
Tune link speed info.

In the Configuration tab, the link speed of a port represents its
link speed configuration; while in the Monitor tab, the link speed
of a port represents its actual link speed.

Signed-off-by: Min Chen <minchnew@gmail.com>
Filter out invalid ports and show full port name.

Signed-off-by: Min Chen <minchnew@gmail.com>