become one of the greatest internet network-bandwidth consumers. So
It's indispensable to reduce the network bandwidth consume of P2P application
especially of P2P media streaming. This paper proposes a fast-inferring method based on network tomography in order to limit the traffic in smaller network
to decrease network-cross traffic and backbone network-bandwidth consume internally
and to suppress the congestions. The simulation shows that such technique can adapt the high dynamics of P2P media streaming system
and effectively slow down the network-cross traffic and backbone network-bandwidth consume.