The invention relates to the field of data transmission in a network of distributed stations (12 to 16). One problem, particularly in a UPnP based network, is that the UPnP devices need to be constantly switched on in order to be available in the network. The invention intervenes at this point and describes ways in which unused network stations can be switched off but continue to be identified as devices in the network. If a device which is switched off is needed, it is automatically switched on. This allows a considerable power saving to be achieved in the network. The invention provides for a network connection switching unit (10) to contain 'communication maintenance means' (22 to 26) which maintain the communication for an inactivated network station (15) at least to a restricted extent instead of the inactivated network station (15) . A network station (15) matched thereto is also proposed.