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在一些局域网或城域网中,限制每个主机出口带宽的情况较大地阻碍了P2P的跨网络应用。提出一种新的方法,先将共享资源分散到局域网或城域网内部的其他主机,再由这些主机同时向网络外部需要获取该资源的目的主机传输共享文件;以达到跨限制出口带宽网络间P2P的传输速率最大化并同时对资源进行冗余备份的目的。通过实验,详细分析了该方法对传输效率的影响。结果表明,所提出的方法能较大幅度提高目的主机获取共享资源的速度,为改善P2P在跨限制主机出口带宽网络的应用提供参考方案。
In some LANs or metropolitan area networks, limiting the bandwidth of each host’s exit greatly hinders P2P cross-network applications. Proposed a new method, the first shared resources scattered to the LAN or other hosts within the MAN, and then by these hosts to the network outside the need to obtain the resources of the destination host to transfer shared files; in order to achieve cross-limit export bandwidth between the network P2P transfer rate to maximize the same time, the purpose of redundant backup resources. Through experiments, the effect of this method on transmission efficiency is analyzed in detail. The results show that the proposed method can greatly improve the speed at which the destination host obtains the shared resources and provide a reference scheme for improving the application of P2P in the bandwidth-limiting network of the egress host.