A transmission method for transmitting a data message to at least one electronic receiving device, the method being implemented by an electronic transmitting device, the transmitting device and the one or more receiving device(s) being connected via an avionics network on board an aircraft, at least one device from the transmitting device and the receiving device being an avionics device on board the aircraft;
- the method including:
- the generation of a data message, the message comprising a message header and one or more data packet(s);
- and
- the transmission of the generated message to the one or more receiving device(s);
- wherein each packet comprises one or more data cluster(s), each cluster containing an identifier field, a size field and a payload data field, and each cluster is adapted to include one or more other data cluster(s), the one or more other data cluster(s) then forming the payload data field of said cluster.