A Survay on the Swarm Intelligence Approaches to Controller Placement Problem in the Software Defined Networks Design and Optimization

Abstract

This article is dedicated to the overview and analysis of the existing approaches
 to the controller placement problem for the multi-controller Software Defined Networks (SDN) with
 a focus on the swarm intelligence methods. For this purpose, the controller placement problem is defined, as well as possible optimization functions and constraints. Research subject of this article
 is a controller placement problem for the multi-controller SDN. As a research method a comparative analysis is used. Core results of the work is a comparison of different approaches based on the different optimality criteria and constraints. Practical relevance of the work is that the results can be used in the SDN design and optimization.