The 30 second frequency that you configured is the frequency at which the router is testing the connection. So the device is collecting and storing the stats about the connection on that frequency. Orion (UnDP) polls the device on a given interval and collects the current stats about the operation at that point in time. By default Orion will poll UnDP stats every 10 mins. To adjust this you will need to change the status polling frequency for the node where you are polling the operations.