A method of operating a data network, the data network comprising a plurality of network ingestion points (12, 14) via which data traffic may be received from another data network, and a plurality of network attachment points via which data traffic may be forwarded, the method comprising: receiving data traffic via at least one of the plurality of network ingestion points (12, 14); and forwarding data traffic from said at least one network ingestion point (12, 14) via at least one of said network attachment points; wherein the method further comprises: in respect of said at least one network ingestion point (12, 14) via which data traffic is received: - assigning an ingestion point indication in respect of said data traffic received via said network ingestion point, said ingestion point indication being indicative of a characteristic of said network ingestion point; and in respect of data traffic being forwarded via at least one of said network attachment points: - determining traffic information indicative of a characteristic of the data traffic; and - selecting a traffic management policy in dependence on said traffic information and in dependence on the characteristic of the network ingestion point (12, 14) via which the data traffic was received, the method characterized in that said characteristic is a categorisation or type of said network ingestion point and is a characteristic of said network ingestion point and of one or more others of the plurality of network ingestion points. receiving data traffic via at least one of the plurality of network ingestion points (12, 14); and forwarding data traffic from said at least one network ingestion point (12, 14) via at least one of said network attachment points; wherein the method further comprises: in respect of said at least one network ingestion point (12, 14) via which data traffic is received: - assigning an ingestion point indication in respect of said data traffic received via said network ingestion point, said ingestion point indication being indicative of a characteristic of said network ingestion point; and in respect of data traffic being forwarded via at least one of said network attachment points: - determining traffic information indicative of a characteristic of the data traffic; and - selecting a traffic management policy in dependence on said traffic information and in dependence on the characteristic of the network ingestion point (12, 14) via which the data traffic was received, the method characterized in that said characteristic is a categorisation or type of said network ingestion point and is a characteristic of said network ingestion point and of one or more others of the plurality of network ingestion points. in respect of said at least one network ingestion point (12, 14) via which data traffic is received: - assigning an ingestion point indication in respect of said data traffic received via said network ingestion point, said ingestion point indication being indicative of a characteristic of said network ingestion point; and - assigning an ingestion point indication in respect of said data traffic received via said network ingestion point, said ingestion point indication being indicative of a characteristic of said network ingestion point; in respect of data traffic being forwarded via at least one of said network attachment points: - determining traffic information indicative of a characteristic of the data traffic; and - selecting a traffic management policy in dependence on said traffic information and in dependence on the characteristic of the network ingestion point (12, 14) via which the data traffic was received, - determining traffic information indicative of a characteristic of the data traffic; and - selecting a traffic management policy in dependence on said traffic information and in dependence on the characteristic of the network ingestion point (12, 14) via which the data traffic was received, the method characterized in that said characteristic is a categorisation or type of said network ingestion point and is a characteristic of said network ingestion point and of one or more others of the plurality of network ingestion points.