Abstract: With the increasing number of P2P users, P2P applications arc consuming most of the Internet bandwidth, otherwise they have a negative effect on traditional Internet applications. In order to solve thwas problem, a P2P traffic control method based on feedback principle and Kalman algorithm was presented. I3y means of feedback principle in con- trol theory and Kalman algorithm, the P2P traffic can be regulated and controlled properly. The experimental results show it can not only reduce the high P2P traffic, but also improve the low P2P traffic. It can make the peers to respond to the changes of network status rapidly and utilize the bandwidth sufficiently.

Key words: P2P traffic,hraffic control,Fecdback thcory,Kalman algorithm