Combining SDN and ICN for Network Survivability Improvement
Zhengyang Ai, Fei Song, Xi Wang · Research Briefs on Information and Communication Technology Evolution · 2017
With the rapid development of Information Communication Technology (ICT), the traditional networksare facing tremendous challenges. In recent years, the network security has been constantlyaffected by various factors (e.g., the damages of natural disaster, network intrusion, and limitedproperties of network). It is urgent to make some appropriate adjustments for current network architecture.Software Defined Networking (SDN) and Information-Centric Networking (ICN) bringinnovation, speediness in recovery and reconfiguration for network computing. SDN decouples theforwarding plane from controlling plane, thus moving the control logic from a node to the centralcontroller for the real-time supervision. ICN separates the resources from the location, to make thehost-oriented model transform into content-centric model, which promotes the utilization of networkresources and relieves the explosive growth of network flow. In this paper, we present a novel safetynetwork model by applying SDN and ICN to the network recovery and reconfiguration. The proposedmodel prevents the network congestion and monitors the network status in real time. Thesystem can be quickly restored after being damaged, which improves the network survivability. Weconsidered three scenarios (natural disaster, malicious damage, and system self-defect) to discuss theproposed model. We simulated the situation where system was damaged and calculated the recoverytime. The simulation results show that recovery time of system is shorter in the proposed model thanin traditional network. Finally, we explore the broader perspectives for the network security.