A method and apparatus for testing of the accessibility of ethernet - network node in heterogeneous networks

摘要

A method for testing of the accessibility of ethernet - network node (1) in a heterogeneous network (8), in particular a vehicle electrical system, wherein the network both an ethernet - sub-network, as well as at least one further sub-network, in particular of a different type, with the ethernet - sub-network independent signaling and / or addressing, and the ethernet - sub-network a plurality of first ethernet - network node (1) and connected with each of them, second ethernet - network node (1), wherein the respective first ethernet - network node (1), except by way of an ethernet - connection to the respective second ethernet - network node (1) of the ethernet - of the sub-network, in addition, also by means of at least a network segment (6) via the further sub-network can be achieved, and wherein said method comprising the steps of:Provision of a desired - directory of ethernet - network node (1) of the ethernet - of the sub-network;Sending a test signal via the network to the ethernet - network node (1) of the ethernet - of the sub-network, to test their availability, wherein the test signal is configured, these first ethernet - network node (1) to cause, in each case their ethernet - mac - address via a corresponding ethernet - connection to the respective, with them, thereby connected second ethernet - network node (1) of the ethernet - of the sub-network to transmit, by means of a message;Receiving the messages of this first ethernet - network node (1) at the respective second ethernet - network node (1) and storing the reported respective ethernet - mac - addresses in at least one data memory (16, 17); andTesting, by means of a comparison of the communicated to the ethernet mac addresses - - - network node ethernet belonging to the - directory is contained in the ethernet - network nodes, whether one or severaln="21" Ethernet - network node exist, which are listed in the if - directory, but whose ethernet - mac - address is not successfully the respective second ethernet - network node (1) have been informed, so as to a defect of the to these ethernet - mac - addresses which are associated with a first ethernet - network node (1) and / or its connection to the ethernet - sub-network to be closed; andOutputting a result of the test at an output interface.