First, we also perform experiments with synthetically generated ON/OFF Pareto UDP foreground traffic, which is much burstier and less predictable than TCP foreground flows. We observe that Nice still causes lower interference than Reno or Vegas, but does not match router prioritization as closely. The utilization of spare capacity by Nice is also lower compared to the trace workload case. This suggests that the benefits of Nice are reduced when traffic is unpredictable. Second, we compare Nice to simple rate limited Reno flows. When the rate is tuned to approximate the spare capacity of the network, rate limiting performs well. Nice, however, outperforms rate limiting and does not require hand tuning.