receiving a telemetry packet at an egress node of a data pathway in a data network, the data pathway comprising an ingress node, one or more transit nodes and the egress node, the telemetry packet comprising a telemetry parameter, the telemetry parameter for a node in the data pathway;

comparing, at the egress node, the telemetry parameter with a previous telemetry parameter from a previous telemetry packet transmitted previously on the same data pathway and received at the egress node prior to receiving the telemetry packet;

determining, at the egress node, if a telemetry difference exceeds a telemetry parameter threshold and if the telemetry difference does not exceed the telemetry parameter threshold, the telemetry difference comprising a difference between the telemetry parameter and the previous telemetry parameter;

transmitting telemetry data of the telemetry packet to a network controller if the telemetry difference exceeds the telemetry parameter threshold; and

dropping the telemetry data of the telemetry packet without transmission to the network controller if the telemetry difference does not exceed the telemetry parameter threshold.