Computer Science

Computer Science ›› 2018, Vol. 45 ›› Issue (11): 75-81.doi: 10.11896／j.issn.1002-137X.2018.11.010

• Network & Communication • Previous Articles     Next Articles

SDN Dynamic Load Balancing Method for Smart Healthcare Cloud

LI Xiong-ying1,2, DONG Qing-he1, HE Qian1,2, ZHOU Shui-ming1,2   

  1. (Guangxi Key Lab of Cloud Computing and Complex System,Guilin University of Electronic Technology,Guilin,Guangxi 541004,China)1
    (Key Laboratory of Cognitive Radio and Information Processing of the Ministry of Education,Guilin University of Electronic Technology,Guilin,Guangxi 541004,China)2
  • Received:2017-10-07 Published:2019-02-25

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Abstract: This paper introduced software defined network (SDN)to manage smart healthcare cloud network,and designed a smart healthcare distributed SDN controller system to address the problems of single point failure and unba-lanced load distribution in traditional SDN controller.This system is composed of three layers:SDN controller cluster,data forwarding plane and smart healthcare cloud service system.On this basis,this paper proposed a DAF (Dynamic Adaptive and Fast Load Balancing) algorithm.In this algorithm,the load information aware component periodically collects its own load information,and automatically interacts the load information between controllers.When the load value of controller exceeds its threshold,the switch migration action is triggered to configure the mapping relationship between switches and controllers dynamically.The experimental results show that the distributed SDN control system for smart healthcare cloud has good performance,besides,the DAF algorithm can quickly balance the load among the SDN controllers and improve the network throughput of healthcare cloud.

Key words: Controller cluster, Load balancing, Single point failure, Smart healthcare cloud, Software defined network

CLC Number: 

  • TP393
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