diff --git a/src/main/java/net/onrc/onos/ofcontroller/core/IOFSwitchPortListener.java b/src/main/java/net/onrc/onos/ofcontroller/core/IOFSwitchPortListener.java
new file mode 100644
index 0000000..5deae69
--- /dev/null
+++ b/src/main/java/net/onrc/onos/ofcontroller/core/IOFSwitchPortListener.java
@@ -0,0 +1,26 @@
+/**
+ * 
+ */
+package net.onrc.onos.ofcontroller.core;
+
+import org.openflow.protocol.OFPhysicalPort;
+
+import net.floodlightcontroller.core.IOFSwitchListener;
+
+/**
+ * @author y-higuchi
+ *
+ */
+public interface IOFSwitchPortListener extends IOFSwitchListener {
+
+	/**
+	 * Fired when ports on a switch area added
+	 */
+	public void switchPortAdded(Long switchId, OFPhysicalPort port);
+
+	/**
+	 * Fired when ports on a switch area removed
+	 */
+	public void switchPortRemoved(Long switchId, OFPhysicalPort port);
+
+}
diff --git a/src/main/java/net/onrc/onos/ofcontroller/onoslistener/OnosPublisher.java b/src/main/java/net/onrc/onos/ofcontroller/onoslistener/OnosPublisher.java
index 01ca69b..db18296 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/onoslistener/OnosPublisher.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/onoslistener/OnosPublisher.java
@@ -27,6 +27,7 @@
 import net.floodlightcontroller.linkdiscovery.internal.LinkStorageImpl;
 import net.floodlightcontroller.routing.Link;
 import net.floodlightcontroller.threadpool.IThreadPoolService;
+import net.onrc.onos.ofcontroller.core.IOFSwitchPortListener;
 import net.onrc.onos.ofcontroller.core.ISwitchStorage;
 import net.onrc.onos.ofcontroller.core.INetMapStorage.DM_OPERATION;
 import net.onrc.onos.ofcontroller.core.INetMapTopologyObjects.ISwitchObject;
@@ -43,7 +44,7 @@
 import net.onrc.onos.util.IDBConnection;
 import net.onrc.onos.util.LocalTopologyEventListener;
 
-public class OnosPublisher implements IDeviceListener, IOFSwitchListener,
+public class OnosPublisher implements IDeviceListener, IOFSwitchListener, IOFSwitchPortListener,
 		ILinkDiscoveryListener, IFloodlightModule {
 	
 	protected IDeviceStorage devStore;