A method implemented by a policy server operating on a network to which is connected a device that performs a data packet inspection function, the method involving: sending a first message over the network from the policy server to the device, the first message instructing the device to detect an occurrence of a particular network traffic or service taking place over a connection on the network and to send a notification to the policy server upon detecting the occurrence of that particular network traffic or service; at the policy server receiving a notification from the device that the device has detected the occurrence of that particular network traffic or service; and in response to receiving the notification, sending a second message over the network from the policy server to a network component, the second message containing information associated with the notification.