OpenFlow网络测量分析系统的设计实现

doi:10.11959/j.issn.1000-436x.2015061

通信学报 ›› 2015, Vol. 36 ›› Issue (3): 81-88.doi: 10.11959/j.issn.1000-436x.2015061

OpenFlow网络测量分析系统的设计实现

翁溪,陈鸣,张国敏,许博,邢长友

解放军理工大学指挥信息系统学院，江苏南京 210007

出版日期:2015-03-25 发布日期:2017-06-21
基金资助:
国家重点基础研究发展计划(“973”计划)基金资助项目;国家自然科学基金资助项目;国家自然科学基金资助项目;国家自然科学基金资助项目

Design and implementation of a network measurement and analysis system in OpenFlow networks

Xi WENG,Ming CHEN,Guo-min ZHANG,Bo XU,Chang-you XING

College of Command Information Systems, PLA Univ. of Sci. ＆ Tech., Nanjing 210007, China

Online:2015-03-25 Published:2017-06-21
Supported by:
The National Basic Research Program of China;The National Natural Science Foundation of China;The National Natural Science Foundation of China;The National Natural Science Foundation of China

摘要/Abstract

摘要：

OpenFlow网络目前缺少支持定量测量分析各种创新应用或机制的有效手段。以升级OpenFlow网络设备为具有本地日志功能的OpenFlow测量实体为基础，设计了一种基于集中式服务器控制测量实体进行分布式测量的机制，制定了其间的通信规程OpenFlow测量控制协议(OMCP)，同时基于正则表达式、散列技术和可扩展的统计函数库等方式设计了一种分析测量日志的功能。原型系统的实验表明，OpenTrace服务器能够灵活部署和控制分布式测量任务，OpenTrace系统不仅能够定量地重现数据平面的数据流传输过程而且能够重现控制平面的控制事件交互过程，从而可为量化分析OpenFlow网络应用和新型机制提供广泛的性能数据。

关键词: 未来互联网, OpenFlow, 分布式测量, 集中式控制

Abstract:

Nowadays OpenFlow networks lack an effective measurement means supporting for quantificationally analyz-ing and measuring various innovative applications or mechanisms yet. On the basis of upgrading equipments in Open-Flow networks to be measurement entities which function local log, a mechanism that the measurement entities can carry out the distributed measurement controlled by a centralized server OpenTrace server is designed, and a communications specification called OpenFlow measurement control protocol (OMCP) is established. Meanwhile, a function to analyze the measurement logs, which is based on the regular expression, hash technique and extended statistical function base, is designed. The experimental results of the prototype show that OpenTrace can flexibly deploy and control the distributed measurements; not only the transmission process of dataflow in the data plane but also the interactive process of control-ling events in the control plane can recur quantificationally by OpenTrace system, and the comprehensive performance data can be provided for the quantificational analysis of applications and new mechanisms in OpenFlow networks.

Key words: future internet, OpenFlow, distributed measurement, centralized control

翁溪,陈鸣,张国敏,许博,邢长友. OpenFlow网络测量分析系统的设计实现[J]. 通信学报, 2015, 36(3): 81-88.

Xi WENG,Ming CHEN,Guo-min ZHANG,Bo XU,Chang-you XING. Design and implementation of a network measurement and analysis system in OpenFlow networks[J]. Journal on Communications, 2015, 36(3): 81-88.

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报文类型	发送方到接收方	主要字段
实体注册报文	服务器到测量实体或相反	实体名称、实体类型、实体IP地址、服务类型和时钟信息
任务定义报文	服务器到测量实体	测量任务组名、任务操作类型、测量模式、开始时刻、持续时间、记录间隔和记录类型
日志获取报文	服务器到测量实体	测量任务组名
日志描述报文	测量实体到服务器	日志文件标志位、当前日志名称、当前日志大小

参数	值	说明
测量任务组名	TestGroup1	标识测量实体集合
任务操作类型	1	任务开始
测量模式	1	结果离线分析
开始时刻	0	立刻开始
持续时间	120	持续120 s
记录间隔	1 000	间隔为1 s
记录类型	00001	仅周期性记录流表项

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OpenFlow网络测量分析系统的设计实现

Design and implementation of a network measurement and analysis system in OpenFlow networks

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