diff --git a/README.md b/README.md
index fa45bbf..eefb97c 100755
--- a/README.md
+++ b/README.md
@@ -52,7 +52,8 @@
 * Otherwise, for a classic installation:
  * `python setup.py install`
 * First terminal:
- * `sudo python src/emuvim/example_topology.py`
+ * `sudo python src/emuvim/examples/simple_topology.py 
+`
 * Second terminal:
  * `son-emu-cli compute start -d datacenter1 -n vnf1`
  * `son-emu-cli compute start -d datacenter1 -n vnf2`
diff --git a/setup.py b/setup.py
index f134ffe..f2a6ce9 100644
--- a/setup.py
+++ b/setup.py
@@ -11,7 +11,6 @@
       packages=find_packages('src'),
       install_requires=[
           'pyaml',
-          'six',
           'zerorpc',
           'tabulate',
           'argparse',
diff --git a/src/emuvim/example_topology.py b/src/emuvim/examples/simple_topology.py
similarity index 96%
rename from src/emuvim/example_topology.py
rename to src/emuvim/examples/simple_topology.py
index a63bd7f..8f14b69 100755
--- a/src/emuvim/example_topology.py
+++ b/src/emuvim/examples/simple_topology.py
@@ -19,8 +19,8 @@
 import logging
 from mininet.log import setLogLevel
 from emuvim.dcemulator.net import DCNetwork
-from api.zerorpcapi import ZeroRpcApiEndpoint
-from api.zerorpcapi_DCNetwork import ZeroRpcApiEndpointDCNetwork
+from emuvim.api.zerorpcapi import ZeroRpcApiEndpoint
+from emuvim.api.zerorpcapi_DCNetwork import ZeroRpcApiEndpointDCNetwork
 
 logging.basicConfig(level=logging.INFO)
 
diff --git a/src/emuvim/examples/sonata_y1_demo_topology_1.py b/src/emuvim/examples/sonata_y1_demo_topology_1.py
new file mode 100644
index 0000000..1588190
--- /dev/null
+++ b/src/emuvim/examples/sonata_y1_demo_topology_1.py
@@ -0,0 +1,46 @@
+"""
+A simple topology with two PoPs for the y1 demo story board.
+
+        (dc1) <<-->> s1 <<-->> (dc2)
+"""
+
+import logging
+from mininet.log import setLogLevel
+from emuvim.dcemulator.net import DCNetwork
+from emuvim.api.zerorpcapi import ZeroRpcApiEndpoint
+
+logging.basicConfig(level=logging.INFO)
+
+
+def create_topology1():
+    # create topology
+    net = DCNetwork()
+    dc1 = net.addDatacenter("dc1")
+    dc2 = net.addDatacenter("dc2")
+    s1 = net.addSwitch("s1")
+    net.addLink(dc1, s1)
+    net.addLink(dc2, s1)
+
+    # create a new instance of a endpoint implementation
+    zapi1 = ZeroRpcApiEndpoint("0.0.0.0", 4242)
+    # connect data centers to this endpoint
+    zapi1.connectDatacenter(dc1)
+    zapi1.connectDatacenter(dc2)
+    # run API endpoint server (in another thread, don't block)
+    zapi1.start()
+
+    # TODO add "fake gatekeeper" api endpoint and connect it to both dcs
+
+    # start the emulation platform
+    net.start()
+    net.CLI()
+    net.stop()
+
+
+def main():
+    setLogLevel('info')  # set Mininet loglevel
+    create_topology1()
+
+
+if __name__ == '__main__':
+    main()
\ No newline at end of file
diff --git a/start_dcnetwork b/start_dcnetwork
index 6deb2c9..7280054 100755
--- a/start_dcnetwork
+++ b/start_dcnetwork
@@ -1,6 +1,7 @@
 #!/bin/bash
 
 # start DC Network
-python src/emuvim/example_topology.py
+python src/emuvim/examples/simple_topology.py
+