Method for managing traffic in a network based upon ethernet switches, vehicle, communication interface, and corresponding computer program product

A communication interface for a network based upon Ethernet switches, which are, in particular, compliant with the IEEE 802.1Q and TSN communication standards, comprising:

• a plurality of queues, that receives frames, belonging to a plurality of traffic classes, classified on the basis of respective priorities, the plurality of traffic classes comprising an event-triggered traffic class, which includes high-priority real-time event-triggered received frames, each queue being dedicated to a respective traffic class in the plurality of traffic classes,
• traffic-management that schedules transmission of said frames contained in said queues in the plurality of queues on the basis of the respective priorities of the traffic classes in the plurality of traffic classes, and
• a transmission that transmits said received frames under the following conditions:
• if frames are present belonging to a traffic class in the plurality of traffic classes that has a higher priority than the frames belonging to the event-triggered traffic class and when at least one protected time window is active, transmitting the frames that belong to the traffic class with higher priority, and blocking transmission of the frames that belong to the remaining traffic classes in the plurality of traffic classes;
• if no frames are present belonging to a traffic class in the plurality of traffic classes that has a higher priority than frames belonging to the event-triggered traffic class, or else the at least one protected time window is inactive, carrying out operations of transmission of a frame belonging to one of the remaining traffic classes, amongst which:
• transmitting a frame contained in the queue dedicated to the event-triggered traffic class;
• and
• transmitting a frame belonging to one of the remaining traffic classes in the plurality of traffic classes that have frames with lower priority than the frames belonging to the event-triggered traffic class, on the basis of said scheduling, if said queue dedicated to the event-triggered traffic class is empty.