Active networking provide a new paradigm for fast deploying defaco network services. However, its praticality is always challenged due to the large processing overhead at each active router node. This thesis propose a Hop - by - hop Qos Control model (HHQC) for an active network to support stream mode transmission of prestored multimedia data. Simulation results show that even though the activer node causes large processing overhead. HHQC can reduce jitter and enable a data source to respond quickly to the media play rate changes.