| 摘要 |
A method, system, and nodes for peer-to-peer (P2P) content sharing are provided. The method includes the following steps. A super node receives a request for fragments from a common user node, and checks itself to see whether the fragments requested by the common user node are stored therein or not. If yes, the super node uploads its stored fragments to be shared by the common user node; otherwise, the super node requests the fragments desired by the common user node from other super nodes or common user nodes and uploads the obtained fragments to be shared by the common user node. The provided technical solution assists a private network user node that is behind network address translation (NAT) to traverse NAT and achieve P2P transmission. Meanwhile, the problem that the overall sharing rate is limited by the minimum rate in the network where the up-rate and down-rate are unsymmetrical is resolved, and thus real-time P2P business applications with high requirements for bandwidth are made possible.bandwidth are made possible.
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