Abstract: Methods and apparatus are disclosed for operating a data network (10), the data network comprising a plurality of network ingestion points (12, 14) via which data traffic (38) may be received from another data network, and a plurality of network attachment points (16) via which data traffic may be forwarded. The method comprises receiving data traffic (38) via said network ingestion points (12, 14), assigning ingestion point indications indicative of a characteristic of the network ingestion points (12, 14); forwarding the traffic via said network attachment points (16); and in respect of data traffic being forwarded via said network attachment points (16), determining traffic information indicative of a characteristic of the data traffic; and selecting a traffic management policy in dependence on said traffic information and the characteristic of the network ingestion point via which the data traffic was received.