cfmIpCbrMetricsCfgMediaPktSize 1.3.6.1.4.1.9.9.697.1.1.1.1.4

This object indicates the configured media packet size used by the flow monitor to compute the DF for the traffic flow. The value of this column only has relevance if the corresponding instance of cfmIpCbrMetricsCfgRateType is 'mediaRate'.