This work presents an open distributed platform for traffic generation that we called Distributed Internet Traffic Generator (D-ITG), capable of producing traffic (network, transport and application layer) and of accurately replicating appropriate stochastic processes for both IDT (Inter Departure Time) and PS (Packet Size) random Variables. We implemented two different versions of our distributed generator. In the first one, a log server is in charge of recording the information transmitted by senders and receivers and these communications are based either on TCP or UDP. In the other one, senders and receivers make use of the MPI library. A complete performance analysis among centralized version and the two versions of D-ITG is presented. To our knowledge, no similar works are available.