diff --git a/src/main/java/net/floodlightcontroller/bgproute/BgpRoute.java b/src/main/java/net/floodlightcontroller/bgproute/BgpRoute.java
new file mode 100644
index 0000000..2819253
--- /dev/null
+++ b/src/main/java/net/floodlightcontroller/bgproute/BgpRoute.java
@@ -0,0 +1,181 @@
+package net.floodlightcontroller.bgproute;
+
+import java.util.Collection;
+import java.util.Map;
+import java.util.ArrayList;
+import java.util.HashMap;
+
+import net.floodlightcontroller.core.module.FloodlightModuleContext;
+import net.floodlightcontroller.core.module.FloodlightModuleException;
+import net.floodlightcontroller.core.module.IFloodlightModule;
+import net.floodlightcontroller.core.module.IFloodlightService;
+import net.floodlightcontroller.core.IFloodlightProviderService;
+
+import net.floodlightcontroller.linkdiscovery.ILinkDiscovery.LDUpdate;
+import net.floodlightcontroller.restserver.IRestApiService;
+import net.floodlightcontroller.topology.ITopologyListener;
+import net.floodlightcontroller.topology.ITopologyService;
+import net.floodlightcontroller.restclient.RestClient;
+
+import net.floodlightcontroller.linkdiscovery.ILinkDiscovery;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class BgpRoute implements IFloodlightModule, IBgpRouteService, ITopologyListener {
+	
+	protected static Logger log = LoggerFactory.getLogger(BgpRoute.class);
+
+	protected IFloodlightProviderService floodlightProvider;
+	protected ITopologyService topology;
+	
+	protected static Ptree ptree;
+	
+	@Override
+	public Collection<Class<? extends IFloodlightService>> getModuleServices() {
+		Collection<Class<? extends IFloodlightService>> l = new ArrayList<Class<? extends IFloodlightService>>();
+		l.add(IBgpRouteService.class);
+		return l;
+	}
+
+	@Override
+	public Map<Class<? extends IFloodlightService>, IFloodlightService> getServiceImpls() {
+		Map<Class<? extends IFloodlightService>, IFloodlightService> m = new HashMap<Class<? extends IFloodlightService>, IFloodlightService>();
+		m.put(IBgpRouteService.class, this); 
+		return m;
+	}
+
+	protected IRestApiService restApi;
+	
+	@Override
+	public Collection<Class<? extends IFloodlightService>> getModuleDependencies() {
+		Collection<Class<? extends IFloodlightService>> l = new ArrayList<Class<? extends IFloodlightService>>();
+		l.add(IFloodlightProviderService.class);
+		l.add(ITopologyService.class);
+		l.add(IBgpRouteService.class);
+		return l;
+	}
+	
+	@Override
+	public void init(FloodlightModuleContext context)
+			throws FloodlightModuleException {
+	    
+	    ptree = new Ptree(32);
+		
+		// Register floodlight provider and REST handler.
+		floodlightProvider = context.getServiceImpl(IFloodlightProviderService.class);
+		restApi = context.getServiceImpl(IRestApiService.class);
+		topology = context.getServiceImpl(ITopologyService.class);
+		
+		// Test.
+		//test();
+	}
+
+	public Ptree getPtree() {
+		return ptree;
+	}
+	
+	// Return nexthop address as byte array.
+	public Rib lookupRib(byte[] dest) {
+		if (ptree == null) {
+		    log.debug("lookupRib: ptree null");
+		    return null;
+		}
+		
+		PtreeNode node = ptree.match(dest, 32);
+		if (node == null) {
+            log.debug("lookupRib: ptree node null");
+			return null;
+		}
+		if (node.rib == null) {
+            log.debug("lookupRib: ptree rib null");
+			return null;
+		}
+		ptree.delReference(node);
+		
+		return node.rib;
+	}
+	
+	@SuppressWarnings("unused")
+    private void test() {
+		System.out.println("Here it is");
+		Prefix p = new Prefix("128.0.0.0", 8);
+		Prefix q = new Prefix("8.0.0.0", 8);
+		Prefix r = new Prefix("10.0.0.0", 24);
+		Prefix a = new Prefix("10.0.0.1", 32);
+	
+		ptree.acquire(p.getAddress(), p.masklen);
+		ptree.acquire(q.getAddress(), q.masklen);
+		ptree.acquire(r.getAddress(), r.masklen);
+	
+		System.out.println("Traverse start");
+		for (PtreeNode node = ptree.begin(); node != null; node = ptree.next(node)) {
+			Prefix p_result = new Prefix(node.key, node.keyBits);
+		}
+	
+		PtreeNode n = ptree.match(a.getAddress(), a.masklen);
+		if (n != null) {
+			System.out.println("Matched prefix for 10.0.0.1:");
+			Prefix x = new Prefix(n.key, n.keyBits);
+			ptree.delReference(n);
+		}
+		
+		n = ptree.lookup(p.getAddress(), p.masklen);
+		if (n != null) {
+			ptree.delReference(n);
+			ptree.delReference(n);
+		}
+		System.out.println("Traverse start");
+		for (PtreeNode node = ptree.begin(); node != null; node = ptree.next(node)) {
+			Prefix p_result = new Prefix(node.key, node.keyBits);
+		}
+		
+		n = ptree.lookup(q.getAddress(), q.masklen);
+		if (n != null) {
+			ptree.delReference(n);
+			ptree.delReference(n);
+		}
+		System.out.println("Traverse start");
+		for (PtreeNode node = ptree.begin(); node != null; node = ptree.next(node)) {
+			Prefix p_result = new Prefix(node.key, node.keyBits);
+		}
+		
+		n = ptree.lookup(r.getAddress(), r.masklen);
+		if (n != null) {
+			ptree.delReference(n);
+			ptree.delReference(n);
+		}
+		System.out.println("Traverse start");
+		for (PtreeNode node = ptree.begin(); node != null; node = ptree.next(node)) {
+			Prefix p_result = new Prefix(node.key, node.keyBits);
+		}
+
+	}
+	
+	@Override
+	public void startUp(FloodlightModuleContext context) {
+		restApi.addRestletRoutable(new BgpRouteWebRoutable()); 
+		topology.addListener((ITopologyListener) this);
+	}
+
+	@Override
+	public void topologyChanged() {
+		boolean change = false;
+		String changelog = "";
+		
+		for (LDUpdate ldu : topology.getLastLinkUpdates()) {
+			if (ldu.getOperation().equals(ILinkDiscovery.UpdateOperation.PORT_DOWN)) {
+				change = true;
+				changelog = changelog + " down ";
+			} else if (ldu.getOperation().equals(ILinkDiscovery.UpdateOperation.PORT_UP)) {
+				change = true;
+				changelog = changelog + " up ";
+			}
+		}
+		log.info ("received topo change" + changelog);
+
+		if (change) {
+			RestClient.get ("http://localhost:5000/topo_change");
+		}
+	}
+}