基于SDN的网络虚拟化技术研究与应用

发布时间：2018-04-25 06:53

本文选题：软件定义网络 + 虚拟化　；参考：《电子科技大学》2017年硕士论文

【摘要】：软件定义网络(SDN,Software Defined Networking)是一种新型网络架构,它最重要的特征体现在控制层和数据层分开,且采用集中控制而非传统的分布式控制方式及开放的可编程接口,这些特性使得网络变得更具有可编程能力,网络灵活性得到增强。虽然软件定义网络的出现不是专门为了解决网络虚拟化问题,但是SDN推动了网络标准化进程,带给网络极大灵活性,给网络虚拟化的发展增加了新的思路和方向。以下为本论文主要的研究内容:第一,对SDN架构、Open Flow技术进行深入研究,以及对OpenStack云平台及其Neutron组件学习,试图将SDN和OpenFlow技术应用于云计算,并研究将SDN控制器和OpenStack整合在一起的虚拟网络系统的方案。第二,通过对当前市场上的SDN控制器和交换机了解和比较,选取了开源控制器OpenDaylight及Open vSwitch来搭建软件定义网络,并研究使用Open Stack网络相关组件实现与OpenDaylight控制器的融合;并对虚拟系统设计了相关网络网络配置及路径算法改进,初步实现了虚拟系统。第三,为了增强虚拟系统功能,同时研究了云系统和SDN控制器高可用性方案,来提高网络可用性。此外还设计了两种监测方案,并实现了基于Open Flow协议的网络监测模块,增强对虚拟网络系统网络监控,帮助了解虚拟系统网络状态。第四,本论文对基于Open Flow协议来实现对SDN网络相关状态测试方法进行设计,充分发挥SDN自身特性。最后,对虚拟系统并进行了相关测试,并对网络监测模块进行实验验证,说明该方案是可行的。
[Abstract]:SDN (Software Defined networking) is a new network architecture. Its most important feature is that the control layer is separated from the data layer, and the centralized control is used instead of the traditional distributed control mode and the open programmable interface. These features make the network more programmable and more flexible. Although the emergence of software-defined network is not designed to solve the problem of network virtualization, SDN promotes the process of network standardization, brings great flexibility to the network, and adds new ideas and directions to the development of network virtualization. The following are the main contents of this thesis: first, the SDN architecture Open Flow technology is deeply studied, and the OpenStack cloud platform and its Neutron components are studied to try to apply SDN and OpenFlow technology to cloud computing. The scheme of virtual network system which integrates SDN controller and OpenStack is studied. Secondly, the open source controller OpenDaylight and Open vSwitch are selected to build the software definition network by comparing the SDN controller and the switch in the current market, and the integration of Open Stack network components with OpenDaylight controller is studied. The related network configuration and path algorithm improvement are designed for the virtual system, and the virtual system is preliminarily realized. Thirdly, in order to enhance the function of virtual system, the high availability scheme of cloud system and SDN controller is studied to improve the availability of network. In addition, two monitoring schemes are designed, and the network monitoring module based on Open Flow protocol is implemented to enhance the network monitoring of virtual network system and help to understand the network status of virtual system. Fourthly, based on Open Flow protocol, this paper designs the SDN network related state test method, and gives full play to the characteristics of SDN itself. Finally, the virtual system is tested and the network monitoring module is tested, which shows that the scheme is feasible.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP393.0

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