The invention relates, in a packet transport communication network comprising a connection (5) between an input node (3) and an output node (4), said connection (5) being able to be established by at least two different paths comprising at least two heterogeneous links (L1-L3), to a distribution method for distributing an incoming packet toward one of said links (L1-L3), comprising the following steps: identifying an object coherently grouping together packets, determining the size of the identified object, sending an incoming packet over one of said links (L1-L3), chosen based on the size of the object to which the packet belongs.