Optimizing Routing Algorithm of Virtual Optical Networks based on SDN

LI Ting-qing; LIU Feng-qing

doi:10.13756/j.gtxyj.2018.03.001

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Optimizing Routing Algorithm of Virtual Optical Networks based on SDN

- Optimizing Routing Algorithm of Virtual Optical Networks based on SDN
- Study on Optical communication Issue 3, Pages: 1-4(2018)
- 作者机构：
  
  南京邮电大学光电工程学院
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2018.03.001
  CLC： TN929.1
- Published：2018，
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[1]李廷清,刘逢清.基于SDN的虚拟光网络优化路由算法[J].光通信研究,2018(03):1-4.

LI Ting-qing, LIU Feng-qing. Optimizing Routing Algorithm of Virtual Optical Networks based on SDN. [J]. (3):1-4(2018)
[1]李廷清,刘逢清.基于SDN的虚拟光网络优化路由算法[J].光通信研究,2018(03):1-4. DOI： 10.13756/j.gtxyj.2018.03.001.

LI Ting-qing, LIU Feng-qing. Optimizing Routing Algorithm of Virtual Optical Networks based on SDN. [J]. (3):1-4(2018) DOI： 10.13756/j.gtxyj.2018.03.001.

摘要

针对传统光网络传输数据过程中带宽利用率低和网络出现拥塞等不足

基于软件定义网络构建出分组网络与光网络互联的虚拟光网络拓扑结构

并提出一种多路径优化路由分配算法

在链路固定带宽的限制下

仿真计算出各个链路的最大负载以及优化路由分配比例

并借助于ONOS和Mininet仿真工具进行了仿真分析。仿真结果表明

与平均分配算法相比

所提算法可以有效降低数据的传输时延

避免网络拥塞。

Abstract

Considering the shortage of low bandwidth utilization and congestion of data transmission in traditional optical networks

we construct a Software Defined Network（SDN）-based virtual optical network that comprises of a packet network and an optical network

and propose a multi-path routing algorithm that optimizes the bandwidth allocation.Under the capacity constraints of the transmission link

we calculate the maximum load of each link and optimize the bandwidth allocation in multipath routing.With the help of ONOS and Mininet simulation tools

we verify that our algorithm can effectively reduce the delay of data transmission and avoid network congestion.

关键词

软件定义网络分组网络虚拟光网络优化路由分配算法

Keywords

SDNpacket networkvirtual optical networkoptimized routing algorithm

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