K 10
svn:author
V 7
thompsa
K 8
svn:date
V 27
2008-09-21T06:01:52.617095Z
K 7
svn:log
V 131
MFC r183135

 Make sure there is at least one port to avoid divide by zero when choosing the
 tx port.

Approved by:	re (kensmith)

END