摘要
软件定义网络是一种数据和控制平面分离、软件可编程的新型网络架构及技术,控制平面使用以Open Flow为代表的协议对转发平面进行集中式控制。SDN架构的这些特点能很好地满足了云计算对虚拟网络的集中化、标准化、自动化的配置管理要求。针对传统虚拟网络技术支持云计算平台的不足,提出基于Open Flow的SDN技术设计虚拟网络的思路,论述了几种虚拟网络实现的原理与处理流程,并给出了模块化的软件设计及部分关键代码功能描述。
SDN（ Software Defined Networking）is a software programmable network framework and technology featuring decoupled data and control planes,and some procotols represented by Open Flow are usd by the control plane to realize central control of the forwarding plane.With these characteristics,SDN framework could fairly meets the demands by cloud-computing for centralized,standardized and automutized configuration and management of virtual network.Aiming at the deficient support for cloud computing platform by traditional virtual network technology,this paper proposes a design of virtual network based on Open Flow-based SDN technology,describes the principles and and processing flows of several virtual network solutions,and finally discusses the modular software design and functions of some key codes.
出处
《通信技术》
2015年第3期335-341,共7页
Communications Technology
