The disclosure relates to a network interface controller for dynamically managing a retransmission delay of a message to resend the message if the retransmission delay is exceeded. The controller includes a communication module to receive an instruction for transmitting a message, said instruction including characteristic data of the message; transmission buffer memory to store the characteristic data and to associate it with a retransmission delay; a slowdown defining calculator to define a value of the division factor from said characteristic data; a reference clock to generate a fixed frequency signal; a frequency divider to generate a reduced frequency signal from the value of the division factor and the fixed frequency signal; and a reduced frequency clock associated with the transmission buffer memory to allow the retransmission delay to be timed from the reduced frequency signal and to trigger a retransmission of the message if the retransmission delay is exceeded.