| 摘要 |
<p>An Internet Service Provider (ISP) aware peer-to-peer (P2P) content exchange system and method for exchanging content over a P2P network using the Internet. The system and method accounts for the type of relationship between peers and classifies and groups each peer according to these relationships. A peer overlay is constructed and peers within a peer's neighborhood are favored over peers outside of the neighborhood. Peer scheduling is utilized to exchange information regarding availability of blocks of content. This block availability information can be exchanged differently and its frequency changed depending on a peer's classification. Peers are selected for block exchange based on their classification. A peer selection proportion may be defined that dynamically changes depending on contents of a peer's download buffer. The blocks to be exchanged are selected based on the block availability information, and the rarest blocks are exchanged before the more common blocks.</p> |
