Switch for an aircraft communication system, and associated aircraft communication system and transmission method

A switch for an aircraft communication system capable of transmitting digital data in the form of frames, each frame having an identification field and being of a first type or second type, the identification field of each frame defining an identification value, the frames of the first type conforming to a protocol of the ARINC 664 P7 type and the frames of the second type conforming to a protocol of the IEEE 802 type, the set of frames of the first type having the same identification value forming a single flow of the first type and the set of frames of the second type having the same identification value forming a single flow of the second type;

• the switch comprising a plurality of input ports capable of receiving frames, a plurality of output ports capable of transmitting frames received by one or more input ports, and a configuration table comprising, for each identification value, transmission parameters for frames having this identification value;
• the switch being configured to switch each frame received by an input port by:
• determining the identification value of the received frame;
• determining the transmission parameters in the configuration table corresponding to this identification value;
• switching the received frame between the input port and at least one output port exclusively based on the determined transmission parameters, independently of the type of the received frame chosen between the first and the second types;
• wherein each frame of the first type has higher priority over each frame of the second type
• wherein for each identification value, the transmission parameters define a timing period for frames having this identification value and at least one output port for those frames;
• and
• wherein the transmission parameters further define priority level of the frames having the corresponding identification value.