Design of Data Flow Scheduling Algorithm Under SDN Architecture

XU Wen-qing; YU Geng

doi:10.13756/j.gtxyj.2018.03.002

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Design of Data Flow Scheduling Algorithm Under SDN Architecture

- Design of Data Flow Scheduling Algorithm Under SDN Architecture
- Study on Optical communication Issue 3, Pages: 5-8(2018)
- 作者机构：
  
  1. 福州理工学院
  2. 福建工程学院国脉信息学院
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2018.03.002
  CLC： TP393.02
- Published：2018，
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[1]许文庆,余庚.SDN架构下数据流量调度算法的设计[J].光通信研究,2018(03):5-8+20.

XU Wen-qing, YU Geng. Design of Data Flow Scheduling Algorithm Under SDN Architecture. [J]. (3):5-8(2018)
[1]许文庆,余庚.SDN架构下数据流量调度算法的设计[J].光通信研究,2018(03):5-8+20. DOI： 10.13756/j.gtxyj.2018.03.002.

XU Wen-qing, YU Geng. Design of Data Flow Scheduling Algorithm Under SDN Architecture. [J]. (3):5-8(2018) DOI： 10.13756/j.gtxyj.2018.03.002.

摘要

目前云技术被广泛应用于数据中心网络（DCN）

为确保DCN服务质量（QoS）

等价多路径路由（ECMP）算法和动态负载均衡（DLB）算法被作为解决方案。然而这些算法仅能获得局部优化效果

将其应用在DCN重载环境下时

得到的传输时延和带宽利用率等指标不尽如人意。文章针对这些算法的局限性

从全局优化的角度提出一种软件定义网络（SDN）架构下的胖树网络数据流量载荷均衡调度算法。该算法通过Ryu控制器监视全局实时参量来评估SDN节点和链路载荷情况

选出最符合流量载荷需求的最优转发路径。实验表明

所提算法在改善DCN服务性能方面较等价多路径路由算法和动态负载均衡算法有显著提升。

Abstract

Recently

cloud technology is widely used in Data Center Network（DCN）.In order to ensure Quality of Service（QoS）in DCN

Equal Cost Multipath Routing（ECMP）algorithms and Dynamic Load Balancing（DLB）algorithms are employed as solutions.However

these algorithms only obtain local optimization results.In particular

the transmission delay and bandwidth utilization are not satisfactory when these algorithms are applied in the DCN overloaded environment.Considering the limitations of these algorithms

this paper proposes a load balancing scheduling mechanism for fat tree network data traffic under Software Defined Network（SDN）architecture from the perspective of global optimization.The mechanism evaluates the SDN node and link load by monitoring the global real-time parameters through the Ryu controller

and selecting the optimal forwarding path which meets the demand of traffic load.Experiments show that the scheduling mechanism proposed in this paper has significantly improved the performance of DCN services compared with the ECMP/DLB algorithm.

关键词

软件定义网络数据中心网络评估均衡仿真

Keywords

SDNDCNevaluationbalancesimulation

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