Congestion in computer networking occurs by these characteristics. The characteristics exhibited are multiple packet losses, low link utilization, high queuing delay and congestion collapse. A scheme for congestion control was proposed in packet switched wide area networks. The scheme used feedback from destinations of the network to the source. The scheme used a minimal amount of feedback (bits in each packet) from the network to adjust the flow of packet into the network. The routers in the network detect congestion and set the congestion indication bits on packets flowing in the forward direction.