Nice post. iperf is a pretty good tool for playing around with this stuff. In my limited testing with EC2 instances, packet size and send rate both have very la

Nice post. iperf is a pretty good tool for playing around with this stuff. In my limited testing with EC2 instances, packet size and send rate both have very large influences on packet loss. Usually loss will be stable up until some threshhold and then it will go nuts with 40-70% dropped, probably from some buffers somewhere filling up. I'd be curious to see more tests with those as variables.