diff --git a/tools/test/topos/uk-region-onos.py b/tools/test/topos/uk-region-onos.py
new file mode 100644
index 0000000..744844d
--- /dev/null
+++ b/tools/test/topos/uk-region-onos.py
@@ -0,0 +1,6 @@
+#!/usr/bin/python
+
+from onosnet import run
+from ukRegion import UkRegionTopo
+
+run( UkRegionTopo() )
diff --git a/tools/test/topos/uk-region.json b/tools/test/topos/uk-region.json
new file mode 100644
index 0000000..a498bc9
--- /dev/null
+++ b/tools/test/topos/uk-region.json
@@ -0,0 +1,98 @@
+{
+  "devices": {
+    "of:0000000000000010": { "basic": { "name": "DOVER",    "latitude": 51.1295, "longitude":  1.3089  }},
+
+    "of:0000000000000021": { "basic": { "name": "BRGHTN-A", "latitude": 50.9000, "longitude": -0.1313  }},
+    "of:0000000000000022": { "basic": { "name": "BRGHTN-B", "latitude": 50.8429, "longitude": -0.1413  }},
+    "of:0000000000000023": { "basic": { "name": "BRGHTN-C", "latitude": 50.8429, "longitude": -0.1213  }},
+
+    "of:0000000000000031": { "basic": { "name": "LONDON-A", "latitude": 51.5091, "longitude": -0.2704  }},
+    "of:0000000000000032": { "basic": { "name": "LONDON-B", "latitude": 51.5091, "longitude":  0.0432  }},
+    "of:0000000000000033": { "basic": { "name": "LONDON-C", "latitude": 51.4513, "longitude": -0.1058  }},
+    "of:0000000000000034": { "basic": { "name": "LONDON-D", "latitude": 51.5418, "longitude": -0.1931  }},
+    "of:0000000000000035": { "basic": { "name": "LONDON-E", "latitude": 51.5072, "longitude": -0.1175  }}
+  },
+
+  "hosts": {
+    "00:00:00:00:00:10/-1": { "basic": { "location": "of:0000000000000010/1", "ips": [ "10.0.1.0" ],  "name": "DOVER", "latitude": 51.6295, "longitude":  1.9089 }},
+
+    "00:00:00:00:00:21/-1": { "basic": { "location": "of:0000000000000021/1", "ips": [ "10.0.2.1" ],  "name": "BRGHTN-A", "latitude": 51.4000, "longitude":  -0.6313 }},
+    "00:00:00:00:00:22/-1": { "basic": { "location": "of:0000000000000022/1", "ips": [ "10.0.2.2" ],  "name": "BRGHTN-B", "latitude": 52.3429, "longitude":  -0.6413 }},
+    "00:00:00:00:00:23/-1": { "basic": { "location": "of:0000000000000023/1", "ips": [ "10.0.2.3" ],  "name": "BRGHTN-C", "latitude": 52.3429, "longitude":  -0.6213 }},
+
+    "00:00:00:00:00:31/-1": { "basic": { "location": "of:0000000000000031/1", "ips": [ "10.0.3.1" ],  "name": "LONDON-A", "latitude": 52.0091, "longitude":  -0.7704 }},
+    "00:00:00:00:00:32/-1": { "basic": { "location": "of:0000000000000032/1", "ips": [ "10.0.3.2" ],  "name": "LONDON-B", "latitude": 52.0091, "longitude":   0.0432 }},
+    "00:00:00:00:00:33/-1": { "basic": { "location": "of:0000000000000033/1", "ips": [ "10.0.3.3" ],  "name": "LONDON-C", "latitude": 51.9513, "longitude":  -0.6058 }},
+    "00:00:00:00:00:34/-1": { "basic": { "location": "of:0000000000000034/1", "ips": [ "10.0.3.4" ],  "name": "LONDON-D", "latitude": 52.0418, "longitude":  -0.6931 }},
+    "00:00:00:00:00:35/-1": { "basic": { "location": "of:0000000000000035/1", "ips": [ "10.0.3.5" ],  "name": "LONDON-E", "latitude": 52.0072, "longitude":  -0.6175 }}
+  },
+
+  "regions": {
+    "rBri": {
+      "basic": {
+        "name": "Brighton Area",
+        "type": "metro",
+        "devices": [
+          "of:0000000000000021",
+          "of:0000000000000022",
+          "of:0000000000000023"
+        ]
+      }
+    },
+    "rLon": {
+      "basic": {
+        "name": "Greater London",
+        "type": "metro",
+        "devices": [
+          "of:0000000000000031",
+          "of:0000000000000032"
+        ]
+      }
+    },
+    "rLonWest": {
+      "basic": {
+        "name": "London West End",
+        "type": "metro",
+        "devices": [
+          "of:0000000000000033",
+          "of:0000000000000034",
+          "of:0000000000000035"
+        ]
+      }
+    }
+  },
+
+  "layouts": {
+    "_default_": {
+      "basic": {
+        "geomap": "uk",
+        "scale": 1.2,
+        "offsetX": -50,
+        "offsetY": 0
+      }
+    },
+    "lBri": {
+      "basic": {
+        "region": "rBri",
+        "geomap": "uk-brighton",
+        "scale": 0.9,
+        "offsetX": 200,
+        "offsetY": -45
+      }
+    },
+    "lLon": {
+      "basic": {
+        "region": "rLon",
+        "geomap": "uk-london"
+      }
+    },
+    "lLonWest": {
+      "basic": {
+        "parent": "lLon",
+        "region": "rLonWest",
+        "sprites": "uk-london-westend"
+      }
+    }
+  }
+
+}
diff --git a/tools/test/topos/ukRegion.py b/tools/test/topos/ukRegion.py
new file mode 100644
index 0000000..a3a8696
--- /dev/null
+++ b/tools/test/topos/ukRegion.py
@@ -0,0 +1,70 @@
+#!/usr/bin/env python
+
+"""
+  Sample network for demonstrating regions (see uk-region.json)
+"""
+from mininet.topo import Topo
+
+
+class UkRegionTopo(Topo):
+    """Switches projected onto a portion of the UK map"""
+
+    def __init__(self):
+        """Create a topology."""
+
+        # Initialize Topology
+        Topo.__init__(self)
+
+        # add nodes, switches first...
+        DOVER = self.addSwitch('s1')
+        BRGHTN_A = self.addSwitch('s2')
+        BRGHTN_B = self.addSwitch('s3')
+        BRGHTN_C = self.addSwitch('s4')
+        LONDON_A = self.addSwitch('s5')
+        LONDON_B = self.addSwitch('s6')
+        LONDON_C = self.addSwitch('s7')
+        LONDON_D = self.addSwitch('s8')
+        LONDON_E = self.addSwitch('s9')
+
+        # ... and now hosts
+        DOVER_host = self.addHost('h1')
+        BRGHTN_A_host = self.addHost('h2')
+        BRGHTN_B_host = self.addHost('h3')
+        BRGHTN_C_host = self.addHost('h4')
+        LONDON_A_host = self.addHost('h5')
+        LONDON_B_host = self.addHost('h6')
+        LONDON_C_host = self.addHost('h7')
+        LONDON_D_host = self.addHost('h8')
+        LONDON_E_host = self.addHost('h9')
+
+        # add edges between switch and corresponding host
+        self.addLink(DOVER, DOVER_host)
+        self.addLink(BRGHTN_A, BRGHTN_A_host)
+        self.addLink(BRGHTN_B, BRGHTN_B_host)
+        self.addLink(BRGHTN_C, BRGHTN_C_host)
+        self.addLink(LONDON_A, LONDON_A_host)
+        self.addLink(LONDON_B, LONDON_B_host)
+        self.addLink(LONDON_C, LONDON_C_host)
+        self.addLink(LONDON_D, LONDON_D_host)
+        self.addLink(LONDON_E, LONDON_E_host)
+
+        # add edges between switches
+        self.addLink(DOVER, BRGHTN_A, bw=10, delay='1.0ms')
+        self.addLink(BRGHTN_A, BRGHTN_B, bw=10, delay='1.0ms')
+        self.addLink(BRGHTN_A, BRGHTN_C, bw=10, delay='1.0ms')
+        self.addLink(BRGHTN_B, BRGHTN_C, bw=10, delay='1.0ms')
+        self.addLink(BRGHTN_C, LONDON_A, bw=10, delay='1.0ms')
+        self.addLink(LONDON_A, LONDON_B, bw=10, delay='1.0ms')
+        self.addLink(LONDON_A, LONDON_C, bw=10, delay='1.0ms')
+        self.addLink(LONDON_B, LONDON_D, bw=10, delay='1.0ms')
+        self.addLink(LONDON_C, LONDON_D, bw=10, delay='1.0ms')
+        self.addLink(LONDON_C, LONDON_E, bw=10, delay='1.0ms')
+        self.addLink(LONDON_D, LONDON_E, bw=10, delay='1.0ms')
+
+
+topos = {'uk': (lambda: UkRegionTopo())}
+
+if __name__ == '__main__':
+    from onosnet import run
+
+    run(UkRegionTopo())