基于网络探针的流量均衡VOD系统及仿真  

Network probe-based VOD system with flow balance and its simulation

作　　者：蒋亚军[1] 杨震伦[1,2] 詹增荣[1] 

机构地区：[1]广州番禺职业技术学院信息工程学院,广东广州511483 [2]华南理工大学计算机科学与工程学院,广东广州510640

出　　处：《浙江工业大学学报》2011年第2期158-162,共5页Journal of Zhejiang University of Technology

基　　金：番禺区科技攻关项目(2008-Z-54-1)

摘　　要：提出一种园区网流量均衡VOD方案,在基于代理服务器的VOD应用系统中以区域覆盖的方式植入网络探针,实现对各个区域数据流量及相应代理服务器性能参数的分布式测量,并由全局管理模块周期性获取网络探针的测量数据并以LLE算法为核心进行流量均衡调度,调整代理服务器为不同的区域提供服务,以优化数据流量分布,从而实现了各个代理服务器的负载均衡及网络各个区域的数据流量均衡,仿真实验结果表明该方案有效,具有较高的实用价值.This paper proposes a VOD scheme with flow balance in local area.The scheme is based on the proxy-based VOD system with network probe embedding in a regional coverage deployment.The probes measure the stream distribution of the network and the performance of proxy in corresponding local areas.The global management module accesses the measurement data from network probe periodically and schedules the proxy servers in order to provide various services for different areas based on core LLE algorithm for flow balance.It can optimize the data distribution and realize the load balance of each proxy server.It can balance the stream form each network region.The simulation experiment result shows that the scheme is effective and has a high practical value.

关 键 词：视频点播 网络探针 代理服务器 LLE 流量均衡 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]