diff --git a/simple.py b/simple.py
new file mode 100755
index 0000000..e2cd797
--- /dev/null
+++ b/simple.py
@@ -0,0 +1,79 @@
+#!/usr/bin/python
+
+from mininet.topo import Topo
+from mininet.net import Mininet
+from mininet.node import RemoteController, OVSBridge
+from mininet.cli import CLI
+from mininet.log import setLogLevel, info
+from routinglib import BasicAutonomousSystem, RouteServerAutonomousSystem
+from routinglib import SdnAutonomousSystem, AutonomousSystem
+from ipaddress import ip_network
+
+onoses = [ '192.168.56.11' ]
+
+class SdnTopo( Topo ):
+    "Topology built using higher-level abstractions (ASes)"
+    
+    def __init__( self, *args, **kwargs ):
+        Topo.__init__( self, *args, **kwargs )
+        sw1 = self.addSwitch('sw1', dpid='00000000000000a1')
+        sw2 = self.addSwitch('sw2', dpid='00000000000000a2')
+        sw3 = self.addSwitch('sw3', dpid='00000000000000a3')
+        sw4 = self.addSwitch('sw4', dpid='00000000000000a4')
+        sw5 = self.addSwitch('sw5', dpid='00000000000000a5')
+        sw6 = self.addSwitch('sw6', dpid='00000000000000a6')
+        
+        # SDN AS
+        sdnAs = SdnAutonomousSystem(onoses, numBgpSpeakers=1, asNum=65000)
+        
+        # Normal ASes
+        as1 = BasicAutonomousSystem(1, [ip_network(u'172.16.10.0/24')])
+
+        AutonomousSystem.addPeering(as1, sdnAs)
+        as1.addLink(sw3)
+        as1.build(self)
+
+        as2 = BasicAutonomousSystem(2, [ip_network(u'172.16.20.0/24')])
+        
+        AutonomousSystem.addPeering(as2, sdnAs)
+        as2.addLink(sw2)
+        as2.build(self)
+        
+        as3 = BasicAutonomousSystem(3, [ip_network(u'172.16.30.0/24')])
+        
+        AutonomousSystem.addPeering(as3, sdnAs)
+        as3.addLink(sw6)
+        as3.build(self)
+
+        # AS containing a route server
+        #as4 = RouteServerAutonomousSystem('192.168.60.2/24', 4, '192.168.60.1/24', 
+        #                                  [ip_network(u'172.16.60.0/24')])
+        #as4.build(self, sw4);
+        
+        cs0 = self.addSwitch('cs0', cls=OVSBridge)
+        
+        sdnAs.build(self, sw1, cs0)
+
+        self.addLink( sw1, sw2 )
+        self.addLink( sw1, sw3 )
+        self.addLink( sw2, sw4 )
+        self.addLink( sw3, sw4 )
+        self.addLink( sw3, sw5 )
+        self.addLink( sw4, sw6 )
+        self.addLink( sw5, sw6 )
+
+if __name__ == "__main__":
+    setLogLevel('debug')
+    topo = SdnTopo()
+
+    net = Mininet(topo=topo, controller=None)
+    for i in range(len(onoses)):
+        net.addController( RemoteController( 'c%s' % (i+1), ip=onoses[i], checkListening=False )  )
+
+    net.start()
+
+    CLI(net)
+
+    net.stop()
+
+    info("done\n")