A network includes routing arcs for routing network traffic to a destination. Each arc comprising nodes connected in sequence by reversible links oriented to direct network traffic to first and second edge nodes through which the network traffic exits the arc. The nodes in the arc detect a first failure. In response, the nodes exchange first management frames to reverse links in the arc so that the network traffic in the arc is directed away from the first failure toward the first edge node of the arc through which the network traffic exits the arc. The nodes detect a second failure in the arc that is spaced apart from the first failure. In response, the nodes exchange second management frames to freeze incoming edges of parent arcs to prevent network traffic in the corresponding parent arc from entering the arc.