基于OpenFlow网络的数据流管控系统的设计与实现

发布时间：2018-02-01 12:41

本文关键词： 数据流 OpenFlow 管控系统网络安全　出处：《北京邮电大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着网络信息技术的不断发展,网络规模也因此不断增长,现有互联网承载的用户业务数量日趋庞大、种类也日趋复杂。由于传统的网络体系中存在着网络异构化、架构方面的设计缺陷等,己经不足以满足用户对网络可控性以及安全性方面的要求。而对传统网络进行修补的方式,造成了的网络中结构的冗余和网络异构化,无法根本性解决当前问题,只有通过一种新型的网络体系架构,来满足当前互联的发展需求,才能从根本上解决上述问题。在2008年,美国斯坦福大学的Clean Slate项目组提出一种OpenFlow新型网络模型,它的核心思想是将网络的传输层面和控制层面进行分离。OpenFlow的出现,使人们可以自由的在网络中部署各种新型协议和研究成果,为广大的网络研究人员提供了一个可扩展、完全可控、可编程的网络实验平台,使研究人员可以用户OpenFlow控制器提供的多种可扩展接口,可以实现对网络的统一、灵活、高效管理和维护,极大推动和促进了网络的创新和发展。本文通过分析现有网络中的不足,在深入研究OpenFlow网络相关技术的基础上,提出改进的方案,研究并设计了一种基于OpenFlow网络的数据流管控系统。本文首先对当今互联网的现状以及发展趋势做了介绍,总结了现有互联网技术中存在的问题,提出系统的功能需求,然后通过对OpenFlow网络的原理以及相关技术进行详细的介绍,说明了利用OpenFlow技术解决现有网络问题的实现方式。其次根据OpenFlow网络的技术特点,本文设计了一种集中式的网络管控框架,对系统提出功能需求进行模块化设计,并对每个模块需要实现的功能进行了详细的阐述。在此基础之上,对系统中的功能进行实现,并论述了包括个模块的实现方案,以及使用到的相关技术和具体的实现细节。然后通过对系统的功能模块进行测试,验证系统实现功能的正确性。最后,对全文的主要工作进行了总结,阐述了系统中现有的不足,以及进一步的改进方向。
[Abstract]:With the continuous development of network information technology, the scale of the network is also growing, and the number of user services carried by the Internet is becoming larger and larger. Because of the network isomerization in the traditional network system, the design defects in the architecture, and so on. Has not enough to meet the users' requirements for network controllability and security. But the traditional network repair, resulting in the network structure redundancy and network isomerization. Only through a new network architecture to meet the development needs of the current interconnection, can the above problems be solved fundamentally. In 2008, the Clean Slate project team at Stanford University in the United States proposed a new OpenFlow network model. Its core idea is to separate the transmission layer and control level of network. OpenFlow makes people can freely deploy various new protocols and research results in the network. For the vast number of network researchers to provide a scalable, completely controllable, programmable network experimental platform, so that researchers can user OpenFlow controller to provide a variety of extensible interfaces. Can achieve the unity of the network, flexible, efficient management and maintenance, greatly promote and promote the innovation and development of the network. This paper analyzes the shortcomings of the existing network. Based on the research of OpenFlow network technology, an improved scheme is proposed, and a data flow management and control system based on OpenFlow network is studied and designed. This paper first introduces the current situation and development trend of the Internet, summarizes the existing problems in Internet technology, and puts forward the functional requirements of the system. Then the principle of OpenFlow network and related technologies are introduced in detail. This paper explains how to use OpenFlow technology to solve the existing network problems. Secondly, according to the technical characteristics of OpenFlow network, this paper designs a centralized network management and control framework. The function requirement of the system is designed by modularization, and the function of each module is described in detail. On this basis, the function of the system is implemented. And discusses the implementation scheme including a module, as well as the use of relevant technology and specific implementation details. Then through the system functional modules to test, verify the correctness of the system function. Finally. The main work of this paper is summarized, and the shortcomings of the system and the direction of further improvement are described.
【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.08

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