数据中心间网络中保证带宽的基于OpenFlow路径规划（英文）  

OpenFlow-Based Path-Planning with Bandwidth Guarantee in the Inter-Datacenter Network

作　　者：唐菀[1] 刘果[1] 杨喜敏[1] 陈凡[1] 

机构地区：[1]中南民族大学计算机科学学院,武汉430074

出　　处：《中南民族大学学报（自然科学版）》2016年第2期128-134,共7页Journal of South-Central University for Nationalities：Natural Science Edition

基　　金：国家自然科学基金资助项目(61103248)

摘　　要：为了实时满足依托于数据中心间网络(IDN)的云服务在不同时间尺度的不同带宽需求,提出了一个基于OpenFlow的保证带宽路径规划(OPPBG)策略.当一个流到达时,OPPBG采集实时网络链路状态,生成一个满足带宽需求的虚拟拓扑,并通过基于OpenF low的软件定义网络(SDN)平台为该流规划出一条优化路径.仿真结果表明:与采用传统路径规划策略的IDN相比,基于OPPBG的IDN能够在保证带宽的同时,实现低丢包率和较高的带宽利用率.Cloud services through the inter-datacenter network ( IDN) make requests for different bandwidth demands on different temporal scales in time .In this paper , a path-planning scheme , entitled OpenFlow-based path-planning with bandwidth guarantee (OPPBG), was proposed to address the issue .As long as a flow arrives, the OPPBG scheme firstly collects the real-time link status of the network and returns a virtual topology with sufficient remainder bandwidth .It then plans an optimal routing path for the flow based on a software-defined networking (SDN) management platform applying the OpenFlow protocol .Simulation results revealed that , in comparison to the IDN based on the traditional path-planning scheme, the OPPBG-based IDN can achieve a lower packet loss rate and higher bandwidth utilization with bandwidth guarantee .

关 键 词：软件定义网络 数据中心网络 路径规划 带宽保证 

分 类 号：TP393.09[自动化与计算机技术—计算机应用技术]