With various multimedia applications rapidly advanced in the current INTERNET

the frequent occurrence of congestion has led many researchers to re-examine the issue of congestion control.At present

the congestion control technologies we master and use adopt end-to-end control which regards TCP as core and is based on window.However

this art has its own drawbacks such as high packet loss

low response speed etc.In this study

the authors give a queue managing algorithm based on priority and self-adaptation.The algorithm is called Priority Random Early Detection (PRED).The algorithm can make router more accurately schedule queue.The primary parameter of algorithm can adapt dynamic change of network load in true surroundings.Validly

it avoids the drawbacks of congestion control we master.Experiments prove

under the same configurations

that PRED algorithm is better than end-to-end congestion control arts in terms of reducing the rate of packet loss and oscillation of queue.