This object specifies the min WRED threshold parameter of a
threshold number for the specific port type when WRED drop
algorithm is used.
WRED (Weighted Random Early Detect) is a mechanism which drops
packets fairly during congestion so that adaptive applications
can react to congestion. This object specifies a percentage of
the buffer size.
This object is instantiated only if the value of
caqQueueThreshDropAlgorithm is wred(2).