摘要
拥塞控制是计算机网络课程中的一个重点和难点。文章通过引入NS3网络仿真工具,对构建复杂混合网络实验环境的方法和步骤进行了论述,并在4∶4哑铃网络拓扑结构的基础上,实现了多个网络实验场景;以拥塞窗口大小为依据,对常见的多种拥塞控制算法进行了理论验证性实验;以吞吐量为依据,对同类拥塞控制算法之间的公平性和异类拥塞控制算法之间的友好性进行了对比实验。实验结果与理论分析相符,并对拥塞控制的算法思路和控制过程进行了形象直观的展示。
Congestion control is an important and difficult point in the computer network course. By introducing NS3 network simulation tool, this paper discusses the methods and steps of constructing complex hybrid network experimental environment and realizes several network experimental scenes based on 4:4 dumbbell network topology. Based on the size of congestion window, the theoretical verification experiments of several common congestion control algorithms are carried out. Based on the throughput, the fairness between the same congestion control algorithms and the friendliness between different congestion control algorithms are compared. The experimental results are consistent with the theoretical analysis, and the algorithm idea and control process of congestion control are visually displayed.
作者
姜雨菲
梁向阳
JIANG Yufei;LIANG Xiangyang(National and Local Joint Engineering Laboratory for New Network and Detection Control,School of Computer Science and Engineering,Xi'an Technological University,Xi'an 710021,China)
出处
《实验技术与管理》
CAS
北大核心
2021年第1期163-169,共7页
Experimental Technology and Management
基金
“十三五”装备发展预研项目(41402020202)
西安工业大学重点教改项目(17JGZ10)。
关键词
网络仿真
NS3
拥塞控制算法
实验教学
network simulation
NS3
congestion control algorithm
experimental teaching
