The invention is related to the field of flow control between two computing nodes over a packet switching network. Furthermore, the invention concerns a method for controlling data flow between a sending node and a receiving node over a packet switching network, data being sent with a current data rate onto a protocol-specific buffer of the receiving node, an application reading data stored in the buffer at a playback rate,According to the invention, it involves the following steps: Notifying by the sending node to the receiving node about its maximum sending rate; Determining by the receiving node a desired sending rate value for the sending node from playback rate value; when the desired sending rate value is significantly different from the current data rate value, notifying the desired sending rate value by the receiving node to the sending node.