Failure Handling for Time-Sensitive Networks using SDN and Source Routing

We propose a Software-Defined Network (SDN)based approach for ultra-fast recovery of Time Sensitive Networks (TSN) in the case of failure events. We exploit the Source Routing paradigm for explicit path control and the creation of a stateless TSN data plane. We further propose a TSN failure recovery routing heuristic used to minimise link congestion, while we also introduce the concept of TSN subgraphs to quickly reschedule the flows traversing the problematic area. We evaluate our approach using SDN-based Source Routing and Linux-based TSN scheduling integrated into Mininet.