$rrd_def = RrdDefinition::make()
                        ->addDataset('PacketLoss', 'GAUGE', 0)
                        ->addDataset('PacketOosSD', 'GAUGE', 0)
                        ->addDataset('PacketOosDS', 'GAUGE', 0)
                        ->addDataset('PacketLateArrival', 'GAUGE', 0)