基于OpenFlow协议的光与IP网络统一控制架构的研究(英文)

Control Architecture of OpenFlow-based IP and Optical Networks

软件定义网络是近几年才提出的基于集中式控制技术的新型网络架构.本文提出了一个基于软件定义网路为网络中的OpenFlow协议异构网络跨域的统一控制架构.此架构在实现对物理层光交换节点与电交换节点统一控制的基础上,以最小化减小运营商损失的同时最大化保留IP网路与光网络自身的优势为目的,利用SDN实现多域中数据中心服务的统一控制与分配,最大化保留了IP网络无连接交换以及光网络大容量高速率的优势.

Software-defined networkhas recently been proposed and validated as a promising centralized control technique for optical networks.We propose a heterogeneous network convergence architecture based on OpenFlow protocol to realize the unified control of optical/electrical switching nodes in physical layer,which provides maximum flexibility for the operators and can be extended to afford joint optimization of functions and services across underlying network and application with a global view.Therefore,it is important to design an architecture to integrate the multi-stratum resources for data center application through multiple controllers interaction.The signaling procedure of the proposed architecture are experimentally verified on our testbed.