$ docker run -it --name node1 ubuntu:14.04 /bin/bash
$ docker run -it --name node2 ubuntu:14.04 /bin/bash
Then in each one, I run:
$ apt-get update && apt-get install iperf
Then in node 1, I run:
$ iperf -s -u -B 224.0.55.55 -i 1
And in node 2, I run:
$ iperf -c 224.0.55.55 -u -T 32 -t 3 -i 1