This sets the numerator of the cell-rate ratio for this shaper, where the shaper serves this many cells within pportTrafficShaperCellRatioDivisor cell times to produce the shaper's average rate. Because the actual rate is a ratio rather than a directly specified bps value, tuning this specific shaper's rate on this port means adjusting both this dividend and its paired divisor together, and the achievable granularity of rates depends on how large a divisor the shaper supports. A shaper configured with a dividend of 1 against a divisor of 100 on this port would serve roughly 1 percent of available cell slots, producing a much lower average rate than a dividend of 50 against that same divisor.