摘要： 以Chord为基础,提出了一种新的P2P系统——双层环。双层环中简化了节点路由表的构造、维护,并降低了路由表维护的带宽开销,同时改变了查询算法,降低了查询的平均路径长度。双层环中还部分地实现了结合物理层拓扑的构建方式,并留下了可进一步扩展的空间。

关键词: P2P Chord, 可维护性, 双层环

Abstract: According to the Chord,a new P2P system—two layer Chord(TLChord),is put forward.In this P2P system,the construction and maintenance of node’s routing table is simplified,thereby,it can reduce the spending of network bandwidth.Simultaneity,TLChord changes the querying algorithm and falls the average path length.Besides,topology-aware construction is combined,and more expanded space is provided.

中图分类号: 

• TP393.02