A Systematic Review on Software Defined Networks Security: Threats and Mitigations

Abstract

The centralized architecture of the SDN is proving to be a double-edged sword. On the one hand, it gives the network administrator a global view through the controller to facilitate network management. On the other hand, this centralization is a vulnerability for SDN networks, taking over a controller is taking over the overall network. This paper aims to provide a comprehensive review of state of art, accompanied by categorizing the research literature into a taxonomy that highlights each proposal’s main characteristics and contributions to the SDN’s different layers. Based on the analysis of existing work, we also highlight key research gaps that could support future research in this area.