基于CORBA的分布式VPN策略管理的研究  

Research on policy management based on CORBA VPN

作　　者：李汉菊[1] 张辉艳[1] 李之棠[1] 

机构地区：[1]华中科技大学计算机科学与技术学院,湖北武汉430074

出　　处：《华中科技大学学报（自然科学版）》2005年第6期1-3,共3页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家网络与信息安全保障持续发展计划资助项目(2004研1917021);武汉市科学技术局资助项目(20043001032).

摘　　要：针对复杂的网络环境和不同的VPN实现方式和接入方式,提出了一种以采用分布式数据库逻辑上形成统一视图为规则的基于CORBA的分布式VPN策略管理体系,并对影响系统整体性能的会话管理体系进行了设计和分析,提出了以PUSH/PULL和线程池服务为基础的会话模型.最后采用形式化方法和马尔科夫模型对其性能进行了分析和模拟测试.将系统利用率从传统模型的62.31%提高到89.74%.According to the complicated network environment, different VPN accesses, and their implementation modes, a COBRA-based distributed VPN policy network management architecture with the rule of logically composing the global unique view with through distributed database technology was presented, and the communication session management impacting the system performance analyzed and designed to introduce a PUSH/PULL and thread pool services based communication session model. Some formulization methods and Markovnikovian model were adopted to analyze the system performance with some simulation. It was seen that the system utility has been raised from 62.31% of old prototype to 89.74%.

关 键 词：策略管理 CORBA CV_PBN管理体系 多任务模型 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]