We've backed it up with multiple redundant paths. We keep even more than 50% available capacity on the backbone to be ready for bursts on the traffic. The connectivity between any points from our network is never congested. There are still other networks we exchange traffic with, keeping uplinks under congestion and degrading the enduser quality of service. Since we can't control the Internet and other 3rd party networks, we had to find a solution. We've built an AI system that permanently monitors the traffic and picks the best path to each remote network based on latency and stability.