Abstract: A method of operating a service provider network comprising selecting a first access network from a plurality of access networks, transmitting first traffic for a first service from a testing system in the service provider network to the first access network over a first virtual connection between the testing system and the first access network wherein the first traffic indicates a first subscriber of the first access network as the origin of the first traffic and the testing system as the destination of the first traffic, receiving second traffic for the first service into the testing system from the first access network over a first service connection wherein the second traffic indicates the first subscriber as the origin of the second traffic and the testing system as the destination of the second traffic, and processing the second traffic to test the first service.