Multi-domain Software Defined Networking: Research status and challenges

Abstract

A key focus of the transition to next generation computer networking is to improve management of network services thereby enhancing traffic control and flows while simplifying higher-level functionality. Software-defined networking (SDN) is an approach that is being developed to facilitate next generation computer networking by decoupling the traffic control system from the underlying traffic transmission system. SDN offers programmability in network services by separating the control plane from the data plane within network devices and providing programmability for network services. Enhanced connectivity services across the global digital network require a multi-domain capability. This paper presents a review of the current research status in SDN and multi-domain SDN, focusing on OpenFlow protocol, and its future related challenges.

Scalable Load Balancing Scheme for Distributed Controllers in Software Defined Data Centers

“…Issue related to implementing LB mechanism in SDN control plane, based on distributed multi-controllers architecture, had been investigated in several previous works where LB making decision is either centralized [4], [12] or distributed [19]. Authors in [17] introduce an overview of current research status in SDN and multi-domain SDN, focusing particularly on OpenFlow protocol, and its future related challenges. SDN control plane synchronization issue has been addressed in [20] and [1].…”

Towards the autonomous provision of self-protection capabilities in 5G networks

“…Focusing on the last aspect, the Software-Defined Networking (SDN) is a recent paradigm developed to facilitate network management in diverse scenarios such as IoT [9] and industry [10], by decoupling control and data planes [2]. In the last few years, many efforts have been made to provide dynamism to network management through the SDN paradigm, which is showcased in a recent review of this paradigm [11]. This review focuses on the current research status of multi-domain SDN implementations as well as its future challenges.…”

Validating User Flows to Protect Software Defined Network Environments

“…An SDN has a dynamic networking architecture that uses the standardized open protocol called OpenFlow [4]. OpenFlow switches provide consolidated intelligence for performance optimization, coarse policy management, acceleration of novel features, and so on.…”

“…We demonstrate that our proposed work effectively validates flows in an SDN to maintain a secure SDN environment. We perform a comparative analysis with two peer strategies for SDNs: the strategy from [4] and the multiqueue SDN controller scheduling algorithm [5]. Table 2 lists the limitations and problems that exist in the state-of-the-art works that are overcome in our work through SDN design and construction.…”

“…SDNs have gained worldwide attention from academia and industry and have been the subject of numerous research efforts. SDN architecture is decoupled into a data plane and a control plane [1][2][3]; this architecture comprises an application layer, a control layer, and an infrastructure layer [4]. However, an SDN is vulnerable without additional security, because it is subject to attacks such as control plane saturation, flow table overloading, Distributed Denial of Service (DDoS), ID spoofing, link spoofing, new flow, and man-in-the-middle attacks [5][6][7][8][9][10].…”