diff --git a/apps/pcep-api/src/main/java/org/onosproject/pcep/api/PcepSwitchListener.java b/apps/pcep-api/src/main/java/org/onosproject/pcep/api/PcepSwitchListener.java
new file mode 100644
index 0000000..01eaaa5
--- /dev/null
+++ b/apps/pcep-api/src/main/java/org/onosproject/pcep/api/PcepSwitchListener.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2015 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.pcep.api;
+
+/**
+ * Notifies providers about switch in events.
+ */
+public interface PcepSwitchListener {
+
+    /**
+     * Notify that the switch was added.
+     *
+     * @param dpid the switch where the event occurred
+     */
+    public void switchAdded(PcepDpid dpid);
+
+    /**
+     * Notify that the switch was removed.
+     *
+     * @param dpid the switch where the event occurred.
+     */
+    public void switchRemoved(PcepDpid dpid);
+
+    /**
+     * Notify that the switch has changed in some way.
+     *
+     * @param dpid the switch that changed
+     */
+    public void switchChanged(PcepDpid dpid);
+
+}