计算机应用 ›› 2010, Vol. 30 ›› Issue (06): 1483-1485.

• 信息安全 • 上一篇    下一篇

分布式代理记忆机制的P2P网络研究

龚尚福   

  1. 西安科技大学
  • 收稿日期:2009-11-26 修回日期:2010-01-29 发布日期:2010-06-01 出版日期:2010-06-01
  • 通讯作者: 龚尚福

Study of P2P network model based on distributed Agent memory mechanism

Gong shangfu   

  • Received:2009-11-26 Revised:2010-01-29 Online:2010-06-01 Published:2010-06-01
  • Contact: Gong shangfu

摘要: 为了解决节点频繁离线、信任机制缺乏和带宽有限等问题对P2P网络服务质量的影响,提出了一种分布式代理记忆机制的P2P网络模型。在该模型中,数据被分成若干个数据块,节点访问结束后对数据块的服务进行评价,数据块内容和服务评价更新存储于邻域节点及后继节点;节点访问信息时,根据本地策略优化搜索代理记忆;对服务评价较低的代理记忆进行定期更新与清除。该模型通过数据块分布式代理记忆和数据动态更新的方法,有效地提高了数据可用性,阻止了病毒文件的传播,减轻了带宽压力,提高了搜索效率,增强了系统的安全性和网络性能。

关键词: P2P网络, 分布式代理, 记忆更新, 服务评价, 本地策略

Abstract: Since such problems of P2P network as node frequent offline, lack of trust mechanism and bandwidth limited influence the service quality, a distributed Agent memory mechanism of P2P network model was presented. In this model, the data were divided into several blocks of data, the block service was evaluated after the node visit, and data block content and service evaluation update were stored in the neighborhood node and subsequent node; when the node visits information, according to local strategy, optimize memory, and regularly update and delete for a low service evaluation memory. The model of distributed data blocks through memory and dynamic data updated Agent improves the data availability effectively, stops the spread of the virus document, reduces bandwidth pressure, improves the searching efficiency, and increases the system security and network performance.

Key words: P2P networks, Distributed agent,, Memory updated, Service evaluation, Local strategy