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AssigneeAirbus France
InventorsJean-Francois Saint Etienne, Juan Lopez, Dominique Portes, Eddie Gambardella, Bruno Pasquier, Philippe Almeida
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The invention relates to a process for checking the deterministic behavior of a packet switching network comprising subscriber stations connected to each other through at least one switch, this behavior being said to be deterministic in the sense that every packet sent on the network from a source subscriber station joins the destination subscriber station(s) within a limited time, characterized in that the following relation is satisfied for each output port on each switch on the network: 1 i number of virtual links passing through the buffer [ 1 + int ( ( Jitter In ) i i + max Latency BAGi ) ] * ( max frame duration ) ≤ max latency in which: the max latency value is the maximum residence time in the output buffer of a switch, this value may be different for each switch in the network. BAGi is the minimum time between two consecutive frames belonging to a vertical link i, before they are transmitted on the physical support. (Jitter In) i is the Jitter associated with a virtual link i that represents the time interval between the theoretical instant at which a frame is transmitted, and its effective transmission which may be before or after the theoretical instant. (max frame duration) i is the duration of the longest frame on the virtual link i.
Process for checking the deterministic behavior of a packet switching network comprising subscriber stations connected to each other through at least one switch, this behavior being said to be deterministic in the sense that any packet sent on the network from a source subscriber station reaches the destination subscriber station(s) within a duration that is limited in time, and characterized in that the following relation is satisfied for each output port from each switch on the network:
Dependencies are inferred from the claim text.