基于全局端口状态感知的拥塞控制算法CAGPS  

A New Congestion Control Algorithm Based on the Awareness of Global Port Status

作　　者：杨学军[1] 吴纯青[1] 

机构地区：[1]国防科技大学计算机学院,湖南长沙410073

出　　处：《计算机工程与科学》2006年第12期1-3,7,共4页Computer Engineering & Science

基　　金：国家自然科学基金资助项目(90604006);国家973计划资助项目(2003CB314802)

摘　　要：针对传统拥塞控制算法主要依据本地信息进行拥塞判断和丢弃决策的缺陷,本文提出了基于全局端口状态感知的拥塞控制算法CAGPS,更全面地考虑远程转发引擎的拥塞状态信息和远程转发引擎各端口的拥塞信息,以期获得更加合理的流控决策,从而提高路由器的整体吞吐率。本文最后描述了CAGPS在基于网络处理器的核心路由器上的实现方法。Traditional congestion control algorithms identify the network congestion status and make drop decisions mainly according to the information in local forward engines. This paper proposes a new congestion control algorithm called CAGPS based on the awareness of global port status named CAGPS. It takes the congestion status of remote forward engines and their ports into account so that the more reasonable flow control decisions can be made. Thus the overall throughput of the router will improve. At the end of this paper, we describe the implementation of CAGPS in a core router based on network processors.

关 键 词：全局端口状态 流量控制 拥塞控制 网络处理器 

分 类 号：TP393.03[自动化与计算机技术—计算机应用技术]