Two things:

1) Update examples to show usage of metric
2) Discuss reasoning for using such a high metric.
Signed-off-by: NDonald Sharp <sharpd@cumulusnetworks.com>
Acked-by: NDavid Ahern <dsa@cumulusnetworks.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>