You can download the code from the RouteFlow GitHub repository:
Once you start the VM, you only need to point your OpenFlow switches (e.g., Mininet) to the controller IP address and port in the VM.
You can also download a pre-configured VM containing everything that is needed to test RouteFlow (Open vSwitch, MongoDB, RouteFlow and pre-configured LXC containers):
Detailed instructions are provided in the README files in the VM package and in the RouteFlow folder.
We also have detailed explanations of tests 1 and 2 provided in the latest RouteFlow distribution:
Note that the instructions above are a bit dated (they only work in the older version of RouteFlow), but the simulated environments remain the same, so they should provide useful information.