diff --git a/apps/odtn/api/src/main/java/org/onosproject/odtn/behaviour/OdtnDeviceDescriptionDiscovery.java b/apps/odtn/api/src/main/java/org/onosproject/odtn/behaviour/OdtnDeviceDescriptionDiscovery.java
new file mode 100644
index 0000000..e8657ea
--- /dev/null
+++ b/apps/odtn/api/src/main/java/org/onosproject/odtn/behaviour/OdtnDeviceDescriptionDiscovery.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+ *
+ * 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.odtn.behaviour;
+
+import java.util.List;
+
+import org.onosproject.net.device.DeviceDescriptionDiscovery;
+import org.onosproject.net.device.PortDescription;
+
+/**
+ * DeviceDescriptionDiscovery used in ODTN.
+ *
+ * Just declaring certain Annotations will be required.
+ */
+public interface OdtnDeviceDescriptionDiscovery
+        extends DeviceDescriptionDiscovery {
+
+    /**
+     * Annotations key, which stores OpenConfig component name.
+     */
+    String OC_NAME = "oc-name";
+
+    /**
+     * Annotations key, which stores OpenConfig component type.
+     */
+    String OC_TYPE = "oc-type";
+
+    // overriding just to make checkstyle happy
+    @Override
+    List<PortDescription> discoverPortDetails();
+
+}