The research of wireless local area networks simulation based on dual-controller architecture

Abstract

Wired campus networks based on optical fiber and twisted pair usually suffer from limited coverage, poor security, and decentralized management. In order to expand the network coverage and provide more secure, convenient, and centrally manageable mobile access services, more and more campus are adopting the controller architecture to transform their campus wireless local area networks on the basis of the original campus wired network. In engineering practice and scientific research, researchers usually face problems such as insufficient network equipment and difficult integration of hardware and software. Based on this background, this research integrates key technologies, such as wireless local area network, software-defined network, network simulation, virtual local area network, and dynamic host configuration protocol, and designs a novel wireless local area network simulation project based on dual-controller architecture of “software-defined network controller + wireless local area network controller,” and describes its realization process in detail. After testing, the wireless local area network simulation project designed in this paper runs stably and the software-defined network controller runs normally. This research is helpful in understanding the working principle of wireless local area network and software-defined network, and also helps to understand the application scenarios of key technologies, such as wireless local area network and software-defined networks, in campus networks, as well as to master the process of designing and realizing them, which provides useful references for the majority of network engineers and technicians.