Abstract: The invention relates to a service information entity configured to provide information about a data stream provided to a traffic participant. The service information entity comprises a memory and at least one processor. The memory contains instructions executable by said at least one processor, wherein the service information entity is operative to carry out the following steps: Service information indicating which kind of service the data stream is providing is stored and interface information is stored about at least two interfaces with which the data stream is offered to the traffic participant, wherein the at least two interfaces differ from one another in at least one interface parameter describing how the data stream is transmitted to the traffic participant. Furthermore, the service information which kind of service the data stream is providing and the interface information about the at least two interfaces to the traffic participant is exposed.