OpenFlow交换机的远程管理系统设计

发布时间：2018-06-08 23:09

本文选题：OpenFlow交换机 + 远程管理　；参考：《南京邮电大学》2015年硕士论文

【摘要】：基于OpenFlow协议的软件定义网络(SDN),相比于当前的TCP/IP网络体系结构,在灵活性、可扩展性和可管理性方面,更易于满足快速变化的应用需求。SDN技术的出现带来了诸多机遇,同时也面临着更多的挑战,OpenFlow交换机的远程管理就是其中之一。论文基于OpenFlow交换机管理的技术规范,对比传统的网络管理技术,研究OpenFlow网管的关键问题和实现技术。论文首先基于OF-Config协议和管理信息YANG模型,重点分析了网管功能和OVSDB操作的对应关系,给出了OpenFlow交换机的远程管理系统的原型设计,设计了管理程序的功能适配方案,扩展定义了YANG信息模型结构,包括专用的状态容器、逻辑交换机的端口类型和QoS的RPC操作等。其次,论文基于开源软件Yuma,使用其yangdump程序执行YANG模型文件的预编译,包括语法语义校验和服务器端工具库SIL文件生成。通过OVSDB对应功能调用,完成了SIL开发,用于对OpenFlow交换机的配置修改与状态查询。最后,论文对远程管理系统的功能进行了验证测试。利用XenServer虚拟化环境建立了测试网络,针对系统的管理功能需求,设计了测试用例,并通过相应的测试对系统功能进行验证,包括NETCONF会话的建立、控制器的分配以及交换机端口的配置等。
[Abstract]:Compared with the current TCP / IP network architecture, the software definition network based on OpenFlow protocol brings a lot of opportunities in terms of flexibility, extensibility and manageability. At the same time, facing more challenges, the remote management of OpenFlow switch is one of them. Based on the technical specification of OpenFlow switch management, compared with the traditional network management technology, this paper studies the key issues and implementation techniques of OpenFlow network management. Firstly, based on the OF-Config protocol and the management information model, the corresponding relationship between the network management function and the OVSDB operation is analyzed, and the prototype design of the remote management system of OpenFlow switch is presented, and the functional adaptation scheme of the management program is designed. The extension defines the structure of Yang information model, including special state container, port type of logical switch and RPC operation of QoS. Secondly, based on the open source software Yuma, the paper uses its yangdump program to perform pre-compilation of yen model files, including syntax and semantic verification and server-side tool library sil file generation. Through the OVSDB corresponding function call, the sil development is completed, which is used to modify the configuration and query the status of OpenFlow switch. Finally, the function of remote management system is verified and tested. The test network is established by using Xen Server virtualization environment. The test cases are designed according to the management function requirements of the system, and the system functions are verified by the corresponding tests, including the establishment of the NETCONF session. Allocation of controllers and configuration of switch ports.
【学位授予单位】：南京邮电大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TP393.05

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