BWCTL is a policy and scheduling daemon that wraps a number of other performance measurement tools such as IPERF, NUTTCP, Ping, OWAMP, Traceroute, and Tracepath. Traceroute and Tracepath are tools that can describe the layer 3 'routed' network path between two points. This video discusses how these tools work, and offers practical examples.
 bwtraceroute -T traceroute -c RECV_HOST -s SEND_HOST
 bwtraceroute -T tracepath -c RECV_HOST -s SEND_HOST