diff --git a/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/util/OpenstackNodeUtil.java b/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/util/OpenstackNodeUtil.java
new file mode 100644
index 0000000..79526e6
--- /dev/null
+++ b/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/util/OpenstackNodeUtil.java
@@ -0,0 +1,58 @@
+/*
+ * 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.openstacknode.util;
+
+import org.onosproject.net.device.DeviceService;
+import org.onosproject.openstacknode.api.OpenstackNode;
+import org.onosproject.ovsdb.controller.OvsdbClientService;
+import org.onosproject.ovsdb.controller.OvsdbController;
+import org.onosproject.ovsdb.controller.OvsdbNodeId;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * An utility that used in openstack node app.
+ */
+public final class OpenstackNodeUtil {
+    protected static final Logger log = LoggerFactory.getLogger(OpenstackNodeUtil.class);
+
+    /**
+     * Prevents object instantiation from external.
+     */
+    private OpenstackNodeUtil() {
+    }
+
+    /**
+     * Checks whether the controller has a connection with an OVSDB that resides
+     * inside the given openstack node.
+     *
+     * @param osNode openstack node
+     * @param ovsdbPort ovsdb port
+     * @param ovsdbController ovsdb controller
+     * @param deviceService device service
+     * @return true if the controller is connected to the OVSDB, false otherwise
+     */
+    public static boolean isOvsdbConnected(OpenstackNode osNode,
+                                           int ovsdbPort,
+                                           OvsdbController ovsdbController,
+                                           DeviceService deviceService) {
+        OvsdbNodeId ovsdb = new OvsdbNodeId(osNode.managementIp(), ovsdbPort);
+        OvsdbClientService client = ovsdbController.getOvsdbClient(ovsdb);
+        return deviceService.isAvailable(osNode.ovsdb()) &&
+                client != null &&
+                client.isConnected();
+    }
+}