A method is provided for the transmission of data flows through multiple interfaces. The method includes: comparing a maximum throughput value offered by an interface with a cumulative value resulting from a sum of the throughputs attributed to the flows effectively travelling through the interface; and switching a flow to another interface when the maximum throughput value offered is less than the cumulative value. The method can be used to redirect data flows to an interface other than the current interface when a congestion is detected in the comparison step and to perform optimum dynamic management of the resources of different interfaces as a function of the operating conditions of the interfaces.