Method of processing a request message, containing information to be processed, of a control unit of a road vehicle, by a server array which is connected to the road vehicle via a communications network, in particular the internet or a mobile radio network, with the steps: - sending of the request message by the control unit via the communications network to a distribution server of the server array, - sending of a first redundant request message containing information to be processed to a first processing server and a second redundant request message containing information to be processed to a second processing server by the distribution server, wherein the processing servers (30, 50) are redundant to one another for a similar or identical processing of the information to be processed, - generation of a first redundant reply message on the basis of the information contained in the first redundant request message and sending of the first redundant reply message to the distribution server by the first processing server, - generation of a second redundant reply message based on the information contained in the second redundant request message and sending of the second redundant reply message to the distribution server by the second processing server, and - generation and sending of a reply message, based on the first redundant reply message and the second redundant reply message, by the distribution server to the control unit, characterised by an end-to-end verification of at least one redundant request message (RQ1, RQ2) or at least the information to be processed contained therein by the first processing server and the second processing server, wherein the end-to-end verification includes at least one check information item provided by the control unit, in particular time information provided by the control unit and/or a checksum generated by the control unit. - sending of the request message by the control unit via the communications network to a distribution server of the server array, - sending of a first redundant request message containing information to be processed to a first processing server and a second redundant request message containing information to be processed to a second processing server by the distribution server, wherein the processing servers (30, 50) are redundant to one another for a similar or identical processing of the information to be processed, - generation of a first redundant reply message on the basis of the information contained in the first redundant request message and sending of the first redundant reply message to the distribution server by the first processing server, - generation of a second redundant reply message based on the information contained in the second redundant request message and sending of the second redundant reply message to the distribution server by the second processing server, and - generation and sending of a reply message, based on the first redundant reply message and the second redundant reply message, by the distribution server to the control unit, characterised by an end-to-end verification of at least one redundant request message (RQ1, RQ2) or at least the information to be processed contained therein by the first processing server and the second processing server, wherein the end-to-end verification includes at least one check information item provided by the control unit, in particular time information provided by the control unit and/or a checksum generated by the control unit.