The invention relates to a method and to a device for compressing data. The configuration includes a label that specifies a network topology that is provided by the first physical port and the first target physical port has a port label that matches the label included in the configuration of the LPAR. This contact surface is established both by an outwardly directed collar surrounding the orifice and by a narrow bar which extends into the orifice for example transversely through the center of the orifice in longitudinal direction of the mouthpiece or transversely across the mouthpiece. As a result, the boron nitride film 15 improved in moisture absorption resistance on the interface with the substrate and maintaining low dielectric constant properties is formed. Alternatively, the service can replay the captured signals and detect instances in which an achievement was validly achieved but not properly acknowledged.