A method is disclosed for performing traffic control in a network, the network comprising at least one link, the method comprising: —measuring the data traffic rate, the data traffic comprising at least one data flow, at at least one link which carries the data traffic; —defining a first and a second threshold value, the second threshold value being larger than the first threshold value; —determining whether the measured data rate is larger than the first threshold value; and if so, starting congestion signaling of a first type, —determining whether the data rate is larger than the second threshold value; and if so, starting congestion signaling of a second type, wherein at least one of the first and the second threshold values are modified over time, based on data traffic information.