软件定义网络中网络信息库的研究与设计

发布时间：2018-01-05 07:23

本文关键词：软件定义网络中网络信息库的研究与设计　出处：《北京邮电大学》2015年硕士论文　论文类型：学位论文

【摘要】：软件定义网络(SDN),作为一种全新的网络架构,自被提出后,发展迅猛。国内外主流的网络厂商都纷纷加入到了研究SDN技术的阵营。软件定义网络把网络的控制与转发分离,并且可直接对网络进行编程。短短时间,就吸引了包括学术界和工业界等在内的广泛关注。SDN控制和转发分离后,SDN控制器中应具有一个包含整个网络的经过抽象后的网络信息,称之为网络信息库(network information base,简称NIB)。随着网络的发展,现在计算机网络无论是在服务的数量还是配置时间等方面变得越来越复杂,对软件定义网络、网络信息库的要求也就越来越高。虽然现有多种数据模型技术,但是这些数据模型主要针对一个单独的设备进行设计,他们在NIB中存在一些不适应性。因此,有必要设计出一个面向SDN的网络信息库模型。当前人们对网络信息库的研究比较少,而NIB在整个框架中非常重要,NIB与其他几个模块都有紧密的关系,本文经过对现状及现有技术的研究,主要工作成果如下： 1、本文设计了软件定义网络中的网络信息库模型——OpenNML。本文分析和研究了现有软件定义网络中的控制器、北向接口以及Openflow等的概况,总结出了当前网络信息库的需求。在研究了现有的数据建模技术,通过对比分析了解了当前现有技术的现状与不足的基础上,本文提出了OpenNML模型系统,并对模型的框架,各个模块以及关系进行了详细介绍。 2、本文完成了对于网络信息库OpenNML模型的实现。根据对于OpenNML模型的设计方案,结合现有技术,本文给予了具体的实现,对于模型的实现框架、物理存储、模型语言等模块均给出了详细介绍。最后,本文选取了常见的两个场景,从网络拓扑图的配置、脚本的生成到数据库的存储给予了具体的实例展示。
[Abstract]:As a new network architecture , the software - defined network , as a brand - new network architecture , has developed rapidly since it was put forward . The mainstream network vendors at home and abroad have joined in researching the networking technology . The software - defined network separates the control and forwarding of the network , and can directly program the network . After the network is controlled and forwarded , it should have an abstracted network information , called the network information base ( NIB ) , which contains the whole network . With the development of the network , the computer network has become more and more complicated in terms of the number of services and the time of configuration , and the requirements of the network and the network information base are becoming more and more complicated . Although there are many kinds of data model technologies , these data models are mainly designed for a single device . 1 . The paper designs the network information base model _ OpenNML in the software - defined network . This paper analyzes and studies the general situation of the controller , the north interface and Openflow in the existing software - defined network , summarizes the requirements of the current network information base . After studying the existing data modeling technology , this paper presents the OpenNML model system and gives a detailed introduction to the framework , modules and relationships of the model . 2 . The implementation of OpenNML model is completed in this paper . According to the design scheme of OpenNML model , this paper gives a detailed introduction to the implementation framework , physical storage , model language and so on . Finally , the paper selects two common scenarios , from the configuration of network topology diagram , the generation of script to the storage of the database .

【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TP393.02

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