Method for measuring a transmission delay with control of the degrees of contention applied to a data frame

摘要

The invention relates to a method for transmitting a target data frame (fA) on a path comprising at least one router (R) which has input ports (P1, P2, P3), at least one output port. (PS) and an arbitration unit (UA) configured to select a data frame from a plurality of data frames each coming from a different input port and competing for transmission by a same output port. The method includes specifying, for each of the router's access ports, competing data frames (fB, fC) with the target data frame for transmission through a target output port of the router. The measurement of an end-to-end transmission time of the target data frame on the path is then carried out while the arbitration unit selects for transmission by the target output port (PS) the data frames competing (fB) before the target data frame (fA). Figure for the abstract: Figure 1