广域网中RPC应用加速网关的研究与实现  

Research and Implementation of WAN Application Acceleration

作　　者：彭伟文[1] 王建新[1] 彭娜[1] 

机构地区：[1]中南大学信息科学与工程学院,湖南长沙410083

出　　处：《计算技术与自动化》2009年第4期107-111,共5页Computing Technology and Automation

基　　金：国家自然科学基金项目(60673164);新世纪优秀人才支持计划项目(NECT-05-0683);高等学校博士学科点专项科研基金项目(20060533057);湖南省杰出青年基金项目(06JJ10009)

摘　　要：通过分析时延和带宽对传输控制协议和应用协议性能的影响,得出广域网的高时延是造成广域网数据传输速率低下的主要原因,尤其对应用层中请求-响应式协议影响更为明显。针对此问题设计基于应用代理的加速方案,并且实现基于RPC协议的应用加速。实验数据表明这种基于应用代理的加速方法对请求-响应式应用层协议的网络传输性能有良好的加速效果。By analyzing the impact of delay and bandwidth on the performance of transmission control protocol and application protocol, we can get the conclusion that the main reason of low data transfer rate in WAN is caused by its high latency. Especially, the performance of chatty protocols is influenced by the latency in WAN greatly. Aimed to improve the application performance in WAN, the application proxy based acceleration is designed and RPC--based application acceleration is implemented. The experimental results show that this application proxy based acceleration has a good effect on the performance of chatty protocols application.

关 键 词：广域网 网络加速 应用网关 应用代理 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]