Abstract: A router comprising a number n of inputs (9, 19, 29, 39) and a number n of outputs (49, 59, 69, 79) is intended for routing data packets from the inputs (9, 19, S29, 39) to the outputs (49, 59, 69, 79). The router includes a reticular routing switch constituted by a number n of first incoming lines (5, 6, 7, 8), a number n of second incoming lines (1, 2, 3, 4), a number n of first outgoing lines (50, 60, 70, 80) and a number n of second outgoing lines (10, 20, 30, 40, each of the first incoming lines (5, 6, 7, 8) being respectively connected to an input (9, 19, 29, 39) and each of the first outgoing lines (50, 60, 70, 80) being respectively connected to an input (49, 59, 69, 79).