On Controllers' Utilization in Software-defined Networking by Switch Migration

• Published in: Broadband Communications, Networks, and Systems Vol. 263; pp. 52 - 61
• Main Authors: AL-Tam, Faroq, Ashrafi, Mohammad, Correia, Noélia
• Format: Book Chapter
• Language: English
• Published: Switzerland Springer International Publishing AG 2018; Springer International Publishing
• Series: Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
• Subjects: Load balancing; Multi-controller SDN; Software-defined networking; Switch migration
• ISBN: 9783030051945; 3030051943
• ISSN: 1867-8211; 1867-822X
• DOI: 10.1007/978-3-030-05195-2_6

This work presents a model to solve the switch migration problem in software-defined networking. This model is formulated as a mixed-integer linear programming, and compared against the static mapping approach. Two scenarios of homogeneous and heterogeneous controllers are evaluated. The experimental results show that the dynamic mapping enabled by the proposed model can enhance the controllers’ utilization by \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\approx }63\%$$\end{document} for homogeneous scenario and \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\approx }47\%$$\end{document} for heterogeneous scenario, while maintaining a low control plane overhead.