An Efficient Flow Table Management Scheme for SDNs Based On Flow Forwarding Paths
Dongryeol Kim, Byoung-Dai Lee · Advanced science and technology letters · 2016
As essential infrastructure networks become more common in diverse areas, a wide range of services have appeared related to increasing traffic and high-capacity content, though network-management problems have also increased. Because these problems cannot be easily solved within existing networks, new software defined networks (SDNs) technology has appeared. However, when the network becomes too large, the control plane's overhead may increase due to differing device performance within the data plane. This leads to network performance problems because of the characteristics of SDNs, in which the control plane controls management of the entire network. In this paper, problems that occur because of performance differences among the devices that constitute the data plane are explained, and a flow table management scheme able to reduce network overhead, occurring when the controller manages the flow table, is proposed.