| 摘要 |
<p>The present invention relates to a method of and a device for arranging a P2P overlay network comprising a streaming source arranged to stream data content and a plurality of peers arranged in distribution layers. The method comprises the step of arranging the peers in the distribution layers such that data content download requirements of peers in any one distribution layer does not exceed data content distribution capacity of an immediately preceding distribution layer. The method further comprises the step of selecting, when a first peer has capacity to distribute a data content stream to another peer in an immediately subsequent layer but is restricted from doing so, a second peer from a distribution layer subsequent to that of the first peer, which second peer is not being restricted from distributing the data content stream to said another peer. Moreover, the method comprises the step of switching positions of the first peer and the selected second peer in the overlay network. An advantage of the present invention is that it reduces load on the streaming source in a P2P overlay network where restrictions for streaming data content is imposed.</p> |
