Abstract: A frame switching device for an AFDX network, the device including a first port, configured to be connected to a frame switch of the network or else to a terminal, for example a computer, and a plurality of second ports configured to be respectively connected to on-board pieces of equipment. Each frame incident on the first port is replicated on each of the second ports. The second ports are periodically polled in turn, each frame present on a second polled port being transferred onto the first port.

Abstract: A redundancy management method of a switched full-duplex Ethernet communication network includes at least two independent elementary networks each of which includes at least one source equipment and at least one destination equipment. The method includes a step for defining a window included within a predetermined interval corresponding to the frames already received at a given instant, a step for comparing the number of the frame received with the window, and a step for accepting the received frame when the frame number is not included in the window.

Abstract: The invention relates to a redundancy management method of a switched full-duplex Ethernet communication network that includes at least two independent elementary networks (RE1, RE2) each of which includes at least one source equipment (13) and at least one destination equipment (14), in which each frame transmitted by a source equipment over a virtual link of an independent elementary network includes a number within a predetermined interval that, during reception by a destination equipment of a frame over a virtual link, includes: a step for defining, for this virtual link, a window included within said predetermined interval corresponding to the frames already received at this given instant, a step for comparing the number of the frame received with said window, a step for accepting the received frame when the frame number is not included in said window. The invention also relates to a communication network.