基于SDN的网络虚拟化平台搭建
（1）分析网络虚拟化领域的研究现状。对网络虚拟化平台模型进行了研究，剖析了网络虚拟化平台的核心——FlowVisor的体系架构。
（2）在LINUX环境下，搭建基于FlowVsior方案的虚拟化网络平台，并进行相应测试。验证了给出方案的可行性、可扩展性及可控性等方面的性能。
（3）针对多个虚拟网络，设计了它们控制器系统。验证了该设计方案中网络拓扑与控制器间的连通性，虚拟化层的透明性，以及分片间的隔离性。
实验结果表明，本课题设计的方案较为合理，且达到了任务书规定的要求。30150
关键词 软件定义网络 虚拟化 隔离性 网络拓扑
毕业论文设计说明书外文摘要
Title The Establishment of Network Virtualization Platform Based on Software Defined Network
Abstract
As a new network architecture, software defined network（SDN）separates control platform from forwarding layer，and makes control of the network programmable. The virtualization platform of SDN established by this project can be flexibly applied in the fields of network virtualization, providing solutions for resource optimization in network virtualization process. The main works of this paper are as follows:
1. In the paper, we describe the research status of Network virtualization, and the network virtualization platform model and the architecture of platform's core –FlowVisor are analyzed.
2. The virtual platform based on FlowVsior program is built under the environment of LINUX, and the corresponding test is conducted to verify the feasibility, scalability, controllability and so on properties of given program.
3. For multiple virtual networks, their controller system is designed to verify the connectivity between network topology and the controller, the transparency of the virtualization layer, as well as isolation mechanism between slices.
Experimental results show that the design of the project is reasonable, and meets the requirements specified in the mission statement.
Keywords SDN Virtualization Isolation mechanism Network topology
目 次
1 绪论 1
1.1 研究背景及意义 1
1.2 SDN技术概述 3
1.3 基于SDN 的网络虚拟化研究现状 4
1.4 论文的组织结构 5
2 虚拟化平台的设计方案 6
2.1 网络虚拟化平台的总体结构 6
2.2 搭建环境及所用软件 8
3 基于FlowVisor的虚拟化平台的设计 9
3.1 引言 9
3.2 流空间（Flowspace）和切片定义策略 9
3.3 实现目标 9
3.4 系统描述 10
3.5 隔离机制的设计 11
4 虚拟化网络平台的搭建 13
4.1 环境构建与参数配置 13
4.2 平台整合 17
5 连通性与隔离性分析 24
5.1 引言 24
5.2 系统模型 24
5.3 实验结果 27
结 论 30