Research Of The Routing Mechanism Based On Structured Peer-to-Peer Network

With the rapid growth of Internet and computing power, peer-to-peer (P2P) networks have gained much attention from both industrial and academic fields. The structured P2P networks which base on Distribute Hash Table (DHT) prove the scalability flexibility resources directing and routing servers for the distributed application that includes centre store and content public system. The routing mechanism of P2P network has decided its inquiry efficiency and network applications.P2P network technology current situation and hot spot studying is introduced firstly. After introducing the DHT technology, several classic structured P2P network is introduced and carried out analytical comparison. After having given the formula to compute the ability of a node, carries out the layering of the structured P2P network by the chose mechanism of super nodes. By the analysis to small world theory, have brought forward two-way route routing algorithm.Have improving the Chord protocol; the HChord network model which realizes the layering two-way route algorithm is designed. Then the generate process of the HChord network model, the nodes' structure of routing table and the inquire mechanism are introduced. After giving out the maintained method of clusters in the HChord, the process of cluster split up and that of cluster combine is discussed.Finally HChord network model simulation has been realized in using C# language and the entity design and code in the model process has been detailed given out. Carry out an analogue test on layering two-way route routing algorithm, after the comparison with Chord, have indicated that the layering HChord adopt the two-way route has higher routing and querying efficiency than Chord, and decreases the system cost of maintenance of the routing table.