Impact of Openflow on Wireless Mesh Network (wmSDN)

Software-defined architecture is growing in many computer networks as it reduces costs, increases management power, and improves security and The wireless mesh software defined network (wmSDN) architecture was developed to improve security and management. The most important challenge to this new architecture is to separate the data network from the control network, and various solutions have been proposed to this problem. In the first part of this paper, the wireless mesh network, different methods of implementing the software architecture in a wireless mesh network, the effect of the new architecture on traffic, and its challenges are discussed. This paper mainly explores the effects of the management traffic approach in the new architecture, management traffic classification and the effect of flow quantity, the rule installationpackets in nodes, nodes movement, and graph changes on the management traffic. Simulation results revealed that the management traffic in the new architecture changes unlike the traditional architecture and it grows with an increase in flow and the network management traffic. Our comparisons revealed that the management traffic amount and growth in wireless mesh software defined networks are higher than the software-defined and wireless mesh networks. The classification of the management traffic packets into the operating, monitoring, and event categories also revealed that the operating, monitoring, and event categories had the largest shares of the traffic, respectively.

کلیدواژه ها:

software-defined network ، wireless mesh network ، wireless mesh software-defined network ، openflow