A method for routing data of a session initialized between a terminal and a server, over a first network slice corresponding to a set of data-processing functions of a communication infrastructure, implemented by the terminal. This method includes receiving from the server at least one routing identifier determined as a function of at least one communication parameter of the session, configuring session information as a function of the at least one identifier received, and emitting to the server subsequent data routed over at least one second slice corresponding to the configured information.