Method for operating a multi-port bridge for the routing of data packets, differentiated in accordance with traffic classes, characterized in that in the method, an additional traffic class is introduced and in that the multi-port bridge is configured in such a manner that, for each transmission direction, at least one predetermined port is operated in the “forwarding” state in which the predetermined port forwards data packets of the additional traffic class from a queue and in that during the forwarding, all ports apart from the predetermined port or port pair are deactivated.