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Research and Implementation of Flow Table Optimization Strategy for SDN Switches Based on the Idea of “Main Road”

  • Zhaohui Ma
  • Zenghui Yang
  • Gansen ZhaoEmail author
Conference paper
Part of the Communications in Computer and Information Science book series (CCIS, volume 1042)

Abstract

The seperation of control layer from data layer through SDN (software defined network) enables network administrators to plan the network programmatically without changing network devices, realizing flexible configuration of network devices and fast forwarding of data flows. The controller sends the flow table down to the switch, and the data flow is forwarded through matching flow table items. However, the current flow table resources of the SDN switch are very limited. Therefore, this paper studies the technology of the latest SDN Flow table optimization at home and abroad, proposes an efficient optimization scheme of Flow table item on the main road through the directional flood algorithm, and realizes related applications by setting up experimental topology. Experiments show that this scheme can greatly reduce the number of flow table items of switches, especially the more hosts there are in the topology, the more obvious the experimental effect is. This method can solve the problem of insufficient resources of Flow table items of Open Flow switch, and the experiment proves that the optimization success rate is over 90%.

Keywords

Software defined networking Main road Directional flooding Flow table optimization 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  1. 1.Collaborative Innovation Center for 21st-Century Maritime Silk Road StudiesGuangdong University of Foreign StudiesGuangzhouChina
  2. 2.School of Information Science and TechnologyGuangdong University of Foreign StudiesGuangzhouChina
  3. 3.School of Computer ScienceSouth China Normal UniversityGuangzhouChina
  4. 4.Crime and Professional Information Battalion of Crime and Case Investigation DepartmentNansha District Bureau of Guangzhou Public Security BureaGuangzhouChina

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