Using OpenFlow to control redundant paths in wireless networks

Abstract

The deployment of wireless networks in critical industrial environments must ensure the availability of monitoring and control applications, for which it is essential to exploit redundancy techniques. In order to reduce to zero the failover time, in this paper, the Parallel Redundancy Protocol (PRP) is used in Wireless Local Area Networks (WLAN) which are implemented under the Software-Defined Networking (SDN) paradigm. It is discussed how the OpenFlow protocol allows an external controller to configure redundant paths between dualhomed devices. As a result, critical services can be protected in interference and mobility situations. The improvement in availability has been obtained by using both emulation and simulation.

Automatic Configuration of OpenFlow in Wireless Mobile Ad hoc Networks

“…The authors in [16] addresses the issues of low transfer rate and small coverage of meshed ad hoc networks by using a combination of BATMAN (Better Approach To Mobile Ad-hoc Network) routing protocol, Open vSwitch, and Dijkstra algorithm. In [18], the Parallel Redundancy Protocol (PRP) is used using OpenFlow/SDN paradigm in Wireless Local Area Networks to reduce the fail-over time. The main critique of the existing work is that they do not discuss the automatic deployment of OpenFlow without any manual configuration in the context of MANET or any other wireless networks.…”

Recent Advances on Telematics Engineering

“…In [7], E. Molina et al exploit the Software Defined Networking paradigm, and the OpenFlow protocol, to develop a protocol to establish redundant paths. The so-called Parallel Redundancy Protocol (PRP) is used to ensure reliability in critical industrial environments over wireless local area networks (WLAN) infrastructure.…”