We present a packet loss control scheme for IP networks-Dynamic Partial Buffer Sharing (DPBS).Compared with Static Partial Buffer Sharing (SPBS)

the new scheme adjusts control thresholds dynamically according to packets loss behavior

which is endowed with better adaptability to changing network traffic.Also

DPBS avoids complicated threshold-setting problem:arbitrary initial value will never degrade system steady-state performance.Simulation results show that

DPBS can assure nearly fixed relative loss ratio

and its loss jitter performance is also better than SPBS under same traffic condition.