Chord是基于覆盖网的典型分布式结构化P2P(Peer—to—peer)系统,其相邻节点在IP Network上可能相距很远.从而导致网络访问速度大大降低.为此对Chord系统进行改进,提出一种新的P2P系统.在该系统中,将同一地区的节点组织为一个局域P2P网络(10cation Area P2P Network,LAPN),使用指针连通这些局域P2P网络,可以很好地解决上述问题,使系统执行效率大大提高.
Because Chord is a typical distributed structured peer-to-peer (P2P) system based on overlay network, the distance between two adjacent peers may be very far on IP network, and the network access speed is greatly reduced. To solve the problem, a new P2P system is proposed to improve the Chord system. The peers in the same location are connected in a Location Area P2P Network (LAPN) which is connected by pointers. The method can resolve the problem and improve the system efficiency.