软件定义网络中交换机处理时延的仿真

doi:10.11772/j.issn.1001-9081.2014.09.2472

计算机应用 ›› 2014, Vol. 34 ›› Issue (9): 2472-2475.DOI: 10.11772/j.issn.1001-9081.2014.09.2472

软件定义网络中交换机处理时延的仿真

吕怡龙¹,黄传河¹,²,贾永宏¹,张海¹

1. 武汉大学计算机学院，武汉 430000
2.

收稿日期:2014-03-26 修回日期:2014-05-16 出版日期:2014-09-01 发布日期:2014-09-30
通讯作者: 吕怡龙
作者简介:
吕怡龙(1989-),男,河南平顶山人,硕士研究生,主要研究方向:网络仿真、移动Ad Hoc网络;
黄传河(1963-),男,湖北随州人,教授,博士,主要研究方向:网络安全、分布并行处理、移动Ad Hoc网络;
贾永宏(1990-),男,安徽霍邱人,硕士研究生,主要研究方向:网络仿真、分布并行处理;
张海(1988-),男,山东济宁人,硕士研究生,主要研究方向: 分布式计算、网络仿真。
基金资助:
国家自然科学基金资助项目;湖北省自然科学基金资助项目;教育部博士点基金资助项目

Simulation of switch's processing delay in software defined network

LYV Yilong¹,HUANG Chuanhe¹,JIA Yonghong¹,ZHANG Hai¹

Received:2014-03-26 Revised:2014-05-16 Online:2014-09-01 Published:2014-09-30
Contact: LYV Yilong
Supported by:
;The Ph.D. Programs Foundation of Ministry of Education of China; Key Project of Natural Science Foundation of Hubei Province

摘要/Abstract

摘要：

针对目前的网络仿真工具在对软件定义网络(SDN)的仿真过程中，未考虑交换机的处理时延的问题，提出一种处理时延的仿真方法，目的是为了使仿真结果更加真实和准确。该方法首先将交换机的转发处理过程分解为对流表的查询操作和执行不同的动作；然后，利用交换机的处理器频率和访存周期，将查询流表和执行动作转换为处理时间。实验中测量了真实环境中不同配置的交换机处理时延，并与利用该方法仿真出的处理时延进行对比。实验结果表明，利用该方法仿真出的处理时延和真实交换机的处理时延基本一致，该方法能够较准确地仿真交换机处理时延。

Abstract:

In the simulation of Software Defined Network (SDN), the existing network simulation tools usually do not consider the processing delay of SDN switchs. To make the simulation result more realistic and accurate, a scheme to simulate the processing delay was proposed. First, the scheme divided the process of the switch forwarding into two aspects: inquiry operations on flow table and execution of various actions, and then transferred the two aspects into processing delay by using processor frequency and memory cycle. Measurement and comparison were conducted on the processing delay of switches with different configuration in real and simulation environments. The results show that the simulated processing delay of the proposed method is almost close to that in real environment, it can accurately estimate the processing delay of switches.

中图分类号:

TP393

吕怡龙黄传河贾永宏张海. 软件定义网络中交换机处理时延的仿真[J]. 计算机应用, 2014, 34(9): 2472-2475.

LYV Yilong HUANG Chuanhe JIA Yonghong ZHANG Hai. Simulation of switch's processing delay in software defined network[J]. Journal of Computer Applications, 2014, 34(9): 2472-2475.

参考文献

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软件定义网络中交换机处理时延的仿真

Simulation of switch's processing delay in software defined network

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