SDN Multi-Domain Routing for Knowledge-Defined Networking

With the rapid rise of smart devices, such as smartphones and smart home devices, intelligent routing through Software Defined Network(SDN) has become a research focus. Recently, the concept of Knowledge-Defined Networking (KDN) has been proposed. In this paper, we propose Knowledge-Defined Networking oriented SDN multi-domain routing, and a DDQN routing algorithm based on graph neural network at the knowledge layer. The communication of SDN multi-domain architecture for Knowledge-Defined Networking and intelligent routing decision are realized. The network performance such as delay jitter, packet loss rate and throughput is improved compared to existing approaches in simulation.