diff --git a/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/event/AbstractVirtualListenerManager.java b/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/event/AbstractVirtualListenerManager.java
new file mode 100644
index 0000000..fe6b2f9
--- /dev/null
+++ b/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/event/AbstractVirtualListenerManager.java
@@ -0,0 +1,88 @@
+/*
+ * Copyright 2017-present Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.incubator.net.virtual.event;
+
+import org.onosproject.event.Event;
+import org.onosproject.event.EventDeliveryService;
+import org.onosproject.event.EventListener;
+import org.onosproject.event.ListenerService;
+import org.onosproject.incubator.net.virtual.NetworkId;
+
+/**
+ * Basis for virtual event components which need to export listener mechanism.
+ */
+public abstract class AbstractVirtualListenerManager
+        <E extends Event, L extends EventListener<E>>
+    implements ListenerService<E, L> {
+
+    protected final NetworkId networkId;
+
+    protected EventDeliveryService eventDispatcher;
+
+    VirtualListenerRegistryManager listenerManager =
+            VirtualListenerRegistryManager.getInstance();
+
+    public AbstractVirtualListenerManager(NetworkId networkId) {
+        this.networkId = networkId;
+    }
+
+    @Override
+    public void addListener(L listener) {
+        listenerManager.getRegistry(networkId, getEventClass())
+                .addListener(listener);
+    }
+
+    @Override
+    public void removeListener(L listener) {
+        listenerManager.getRegistry(networkId, getEventClass())
+                .removeListener(listener);
+    }
+
+    /**
+     * Safely posts the specified event to the local event dispatcher.
+     * If there is no event dispatcher or if the event is null, this method
+     * is a noop.
+     *
+     * @param event event to be posted; may be null
+     */
+    protected void post(E event) {
+        if (event != null && eventDispatcher != null) {
+            VirtualEvent<E> vEvent =
+                    new VirtualEvent<E>(networkId, VirtualEvent.Type.POSTED, event);
+            eventDispatcher.post(vEvent);
+        }
+    }
+
+    /**
+     * Returns the class type of parameter type.
+     * More specifically, it returns the class type of event class.
+     *
+     * @return the class type of provider service of the service
+     */
+    private Class getEventClass() {
+        String className = this.getClass().getGenericSuperclass().toString();
+        String pramType = className.split("<")[1].split(",")[0];
+
+        try {
+            return Class.forName(pramType);
+        } catch (ClassNotFoundException e) {
+            e.printStackTrace();
+        }
+
+        return null;
+    }
+
+}
diff --git a/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/event/VirtualEvent.java b/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/event/VirtualEvent.java
new file mode 100644
index 0000000..5ffdc37
--- /dev/null
+++ b/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/event/VirtualEvent.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2017-present Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.incubator.net.virtual.event;
+
+import org.onosproject.event.AbstractEvent;
+import org.onosproject.event.Event;
+import org.onosproject.incubator.net.virtual.NetworkId;
+
+/**
+ * Base class for virtual network event that encapsulates a normal event.
+ */
+public class VirtualEvent<E extends Event>
+        extends AbstractEvent<VirtualEvent.Type, E> {
+
+    private NetworkId networkId;
+
+    /**
+     * Type of virtual network events.
+     */
+    public enum Type {
+        /**
+         * A new virtual event has been posted.
+         */
+        POSTED
+    }
+
+    protected VirtualEvent(NetworkId networkId, Type type, E subject) {
+        super(type, subject);
+        this.networkId = networkId;
+    }
+
+    protected VirtualEvent(NetworkId networkId, Type type, E subject, long time) {
+        super(type, subject, time);
+        this.networkId = networkId;
+    }
+
+    public NetworkId networkId() {
+        return networkId;
+    }
+}
diff --git a/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/event/VirtualListenerRegistryManager.java b/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/event/VirtualListenerRegistryManager.java
new file mode 100644
index 0000000..9d01a00
--- /dev/null
+++ b/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/event/VirtualListenerRegistryManager.java
@@ -0,0 +1,97 @@
+/*
+ * Copyright 2017-present Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.incubator.net.virtual.event;
+
+import com.google.common.collect.Maps;
+import org.onosproject.event.Event;
+import org.onosproject.event.EventSink;
+import org.onosproject.event.ListenerRegistry;
+import org.onosproject.incubator.net.virtual.NetworkId;
+
+import java.util.Map;
+
+/**
+ * Base implementation of an virtual event sink and a registry capable of tracking
+ * listeners and dispatching events to them as part of event sink processing.
+ */
+public final class VirtualListenerRegistryManager
+        implements EventSink<VirtualEvent> {
+
+    private Map<NetworkId, Map<Class<? extends Event>, ListenerRegistry>>
+            listenerMapByNetwork = Maps.newConcurrentMap();
+
+    ListenerRegistry lastStart;
+
+    // non-instantiable (except for our Singleton)
+    private VirtualListenerRegistryManager() {
+
+    }
+
+    public static VirtualListenerRegistryManager getInstance() {
+        return SingletonHelper.INSTANCE;
+    }
+
+    public ListenerRegistry getRegistry(NetworkId networkId,
+                                        Class<? extends Event> eventClass) {
+        Map<Class<? extends Event>, ListenerRegistry> listenerMapByEvent =
+                listenerMapByNetwork.get(networkId);
+
+        if (listenerMapByEvent == null) {
+            listenerMapByEvent = Maps.newConcurrentMap();
+            listenerMapByNetwork.putIfAbsent(networkId, listenerMapByEvent);
+        }
+
+        ListenerRegistry listenerRegistry = listenerMapByEvent.get(eventClass);
+
+        if (listenerRegistry == null) {
+            listenerRegistry = new ListenerRegistry();
+            listenerMapByEvent.putIfAbsent(eventClass, listenerRegistry);
+        }
+
+        return listenerRegistry;
+    }
+
+    @Override
+    public void process(VirtualEvent event) {
+        NetworkId networkId = event.networkId();
+        Event originalEvent = (Event) event.subject();
+
+        ListenerRegistry listenerRegistry =
+                listenerMapByNetwork.get(networkId).get(originalEvent.getClass());
+        listenerRegistry.process(originalEvent);
+        lastStart = listenerRegistry;
+    }
+
+    @Override
+    public void onProcessLimit() {
+        lastStart.onProcessLimit();
+    }
+
+    /**
+     * Prevents object instantiation from external.
+     */
+    private static final class SingletonHelper {
+        private static final String ILLEGAL_ACCESS_MSG =
+                "Should not instantiate this class.";
+        private static final VirtualListenerRegistryManager INSTANCE =
+                new VirtualListenerRegistryManager();
+
+        private SingletonHelper() {
+            throw new IllegalAccessError(ILLEGAL_ACCESS_MSG);
+        }
+    }
+}
diff --git a/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/event/package-info.java b/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/event/package-info.java
new file mode 100644
index 0000000..5032dc3
--- /dev/null
+++ b/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/event/package-info.java
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2017-present Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Virtual network event delivery subsystem interfaces &amp; supporting abstractions.
+ */
+package org.onosproject.incubator.net.virtual.event;