A method for determining a hosting device of a network infrastructure of an operator for the installation of a virtualized function. The virtualized function contributes to transmission and processing of at least one item of information relating to a service. The method is implemented by a management entity of the infrastructure and includes: transmitting to a virtualization entity a compatibility request including at least one datum relating to a test of a resource of the hosting device; receiving from the virtualization entity at least one first variable derived from the test, relating to the transmitted datum, executed on the resource; and determining an aptitude of the hosting device to accommodate the virtualized function as a function of the at least one first variable received.