1. A method in a network node, the method comprising: detecting by a network interface in the network node a depletion of flow control resources representing a depletion of network bandwidth for a prescribed data stream; outputting by the network interface a data flow interruption request based on the detected depletion of flow control resources; and reducing, by a processor in the network node and based on the data flow interruption request, the prescribed data stream by reducing execution of a prescribed application resource configured for generating the prescribed data stream.