Traceroute and Tracepath are tools that can describe the layer 3 'routed' network path between two points. This video discusses ways to schedule regular tests using this tool via the perfSONAR toolkit configuration interface.
traceroute HOST tracepath HOST bwtraceroute -T traceroute -c RECV_HOST -s SEND_HOST bwtraceroute -T tracepath -c RECV_HOST -s SEND_HOST