diff --git a/tools/dev/mininet/examples/README b/tools/dev/mininet/examples/README
new file mode 100644
index 0000000..5d7e70f
--- /dev/null
+++ b/tools/dev/mininet/examples/README
@@ -0,0 +1,9 @@
+This directory contains examples of using onos.py.
+
+You run them directly as Python scripts:
+
+    sudo ./multicluster.py
+
+
+multicluster.py: creates two ONOS controller clusters, each of
+                 which controls a separate segment of the data network.