TopoSync-SFC Demonstrator Code Repository

This repository contains the TopoSync-SFC demonstrator code.

Prerequisites

• Ubuntu 18.04 LTS (other linux distros may work as well, but were not tested)
• ONOS SDN Controller (Version 1.13.6)
• Gurobi ILP Solver (Version 8.1.0)
• Containernet v2.0 (using mininet Version 2.3.0d1)
• Java 11
• Python 2.7.15+

Make sure to have all of the above installed and a valid Gurobi license set up (free for academic use).

Run the demo

1. Start the ONOS controller on localhost.

2. Deploy the TopoSync-SFC SDN application. Use the bash script toposync-app/buildAndDeploy.sh.

3. Build the whack-a-mole applications (client and server) using mvn package in the whack-a-mole-client and whack-a-mole-server subdirectories.

4. Start the mininet instance with sudo python mn/startup/start_topo.py paper. Note that this step will run the demo in an fully emulated environment: both clients are emulated using containernet. Executing this step will therefore open the ping plot as well as two windows displaying the whack-a-mole client view of both clients.

5. (optional) As alternative to 4., you can also use the hardware setup like described in the paper with sudo python mn/startup/start_topo.py paper --hw In this case, the whack-a-mole clients need to be manually started on the hardware devices.

6. Build the GUI which is supposed to run on the main laptop with mvn package in the toposync-demo-gui directory. Run it using toposync-demo-gui/run.sh. It will prompt for root priviliges, as dynamically changing link delays requires those.