Varna-based optimization:a novel method for capacitated controller placement problem in SDN

作     者：Ashutosh Kumar SINGH Saurabh MAURYA Shashank SRIVASTAVA Ashutosh Kumar SINGH;Saurabh MAURYA;Shashank SRIVASTAVA

作者机构：Department of Computer Science&EngineeringMotilal Nehru National Institute of Technology AllahabadAllahabad 211004U.P.India 

出 版 物：《Frontiers of Computer Science》 (中国计算机科学前沿（英文版）)

年 卷 期：2020年第14卷第3期

页      面：87-111页

核心收录：

学科分类：08[工学] 0835[工学-软件工程] 081202[工学-计算机软件与理论] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

主　　题：SDN controller placement CPP latency VBO 

摘      要：Recently,software defined networking(SDN)is a promising paradigm shift that decouples the control plane from the data *** can centrally monitor and control the network through softwarization,i.e.,*** controllers are a necessity of current SDN based *** multiple controllers in an optimum way is known as controller placement problem(CPP).Earlier,solutions of CPP only concentrated on propagation latency but overlooked the capacity of controllers and the dynamic load on switches,which is a significant factor in real *** this paper,we develop a novel optimization algorithm named varna-based optimization(VBO)and use it to solve *** the best of our knowledge,this is the first attempt to minimize the total average latency of SDN along with the implementation of TLBO and Jaya algorithms to solve CPP for all twelve possible *** experimental results show that TLBO outperforms PSO,and VBO outperforms TLBO and Jaya algorithms in all scenarios for all topologies.