# A downlink that congests mid-run: 1 Mbit/s behind a one second queue, collapsing to 16 kbit/s at # 25 s for a second and a half, then back. # # The tone needs about 140 kbit/s, so for that spell the queue fills to its second of wait and drops # the rest. The stall outlasts any row's target, and once the rate returns the transport delivers # the backlog: the queue's and every retransmit. Times are from shaper startup, like `step`. name = "congestion" seed = 8 shared = true [down.rate] bits_per_second = 1000000 burst = 1500 queue = "1s" [[down.steps]] at = "25s" bits_per_second = 16000 [[down.steps]] at = "26500ms" bits_per_second = 1000000