基于SDN的可扩展转发设备架构设计及关键技术实现

发布时间：2018-01-07 01:02

本文关键词：基于SDN的可扩展转发设备架构设计及关键技术实现　出处：《内蒙古大学》2017年硕士论文　论文类型：学位论文

【摘要】：计算机网络正在随着网络需求的多样性而变得越来越多样化,软件定义网络技术(Software Defined Network,SDN)以其独特的数控分离和灵活可编程特性吸引了学术界和工业界越来越多的关注。当前软件定义网络技术主要关注和解决了控制平面的可扩展性和动态部署问题,对数据平面的可扩展性和动态部署问题的研究才刚刚起步,数据平面正越来越成为限制软件定义网络技术发展的一个瓶颈。解决数据平面的可扩展性和动态部署问题的关键之一在于提出一种合适的转发设备体系架构,因此本文将关注的重点放在了转发设备的新型架构设计和该架构中关键技术的详细设计与原型系统实现上。本文的主要研究内容包括:(1)针对当前转发设备可扩展性和动态部署能力不足的问题,结合转发设备方向的最新研究内容提出了一种新型转发设备架构,对该架构中的语言部件、系统构建部件、构件库管理部件、运行环境部件和网络环境部件进行了详细的定义与描述。(2)对本文架构中五个部件的关键技术进行详细设计与原型实现,主要包括基于Java实现的网络功能开发类库、基于有向图的系统构建部件的实现方案、基于OSGI(Open Service Gateway Initiative)框架的运行环境部件实例设计与实现、基于扩展协议解析树模型的数据包解析方案和扩展OpenFlow协议使其支持对运行环境部件的网络功能进行重构。(3)通过特定应用场景分析本文架构在可扩展性和动态部署方面的优势,并以原型系统为基础快速部署了本文设计的UUID(Universally Unique Identifier)网络,证明了该架构的可行性和灵活性。
[Abstract]:Computer network is becoming more and more diverse with the diversity of network requirements, software defined network technology software Defined Network. SDN). Because of its unique numerical control separation and flexible programmable characteristics, it has attracted more and more attention in academia and industry. Currently, the software definition network technology mainly focuses on and solves the scalability and dynamic deployment of control plane. The research on scalability and dynamic deployment of data plane is just beginning. Data plane is becoming a bottleneck restricting the development of software definition network technology. One of the keys to solve the problem of scalability and dynamic deployment of data plane is to propose a suitable forwarding device architecture. Therefore, this paper focuses on the design of the new architecture of the forwarding device, the detailed design of the key technologies in the architecture and the implementation of the prototype system. In order to solve the problem of current forwarding device scalability and dynamic deployment ability is insufficient. Combined with the latest research on the direction of forwarding devices, this paper proposes a new forwarding device architecture, including language components, system building components and component library management components. The running environment component and the network environment component are defined and described in detail. 2) the key technologies of the five components in this paper are designed and prototype implemented in detail. It mainly includes the class library of network function development based on Java and the implementation scheme of system building parts based on directed graph. The design and implementation of running environment component based on OSGI(Open Service Gateway initiate framework. Packet parsing Scheme based on extended Protocol parsing Tree Model and extended OpenFlow Protocol to support Reconfiguration of Network functions of running Environment components. The advantages of this architecture in scalability and dynamic deployment are analyzed through specific application scenarios. Based on the prototype system, the UUID(Universally Unique Identifier network designed in this paper is rapidly deployed. The feasibility and flexibility of the architecture are proved.
【学位授予单位】：内蒙古大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP393.0

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