Gnutella网络中的短路效应及其解决方案

Short-circuiting Effect and the Solution in Gnutella Network

在基于Gnutella协议的Peer-to-Peer网络中,消息生存时间(TTL)机制、唯一标示符(UID)机制和网络异构延迟共同作用形成了短路效应,限制了查询消息的转发范围。提出了一个短路效应的解决方案,通过在拓扑结构中加入环形结构并改进查询消息转发算法,消除了短路效应的影响,提高了Gnutella网络的查询效率。仿真实验证明了该方案的有效性。

In the Peer-to-Peer network based on Gnutella protocol, the combined action of Time-to-Live（TTL）mechanism, Unique Identification mechanism and heterogeneous latency formed the Short- circuiting Effect, which limited the forwarding scope of query message. This paper proposed a solution which added a ring structure to Gnutella topology and modified the query message forwarding algorithm. The solution eliminated short-circuiting effect and increased the query efficiency in Gnutella network and was indicated to be practical and effective in simulations.