diff --git a/protocols/ospf/ctl/src/main/java/org/onosproject/ospf/controller/impl/OspfControllerImpl.java b/protocols/ospf/ctl/src/main/java/org/onosproject/ospf/controller/impl/OspfControllerImpl.java
new file mode 100755
index 0000000..f7b4a73
--- /dev/null
+++ b/protocols/ospf/ctl/src/main/java/org/onosproject/ospf/controller/impl/OspfControllerImpl.java
@@ -0,0 +1,172 @@
+/*
+ * Copyright 2016 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.ospf.controller.impl;
+
+import com.google.common.collect.Sets;
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.apache.felix.scr.annotations.Service;
+import org.onosproject.net.driver.DriverService;
+import org.onosproject.ospf.controller.OspfAgent;
+import org.onosproject.ospf.controller.OspfController;
+import org.onosproject.ospf.controller.OspfLinkListener;
+import org.onosproject.ospf.controller.OspfLinkTed;
+import org.onosproject.ospf.controller.OspfProcess;
+import org.onosproject.ospf.controller.OspfRouter;
+import org.onosproject.ospf.controller.OspfRouterListener;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+/**
+ * Representation of an OSPF controller implementation.
+ * Serves as a one stop shop for obtaining OSPF devices and (un)register listeners on OSPF events
+ */
+@Component(immediate = true)
+@Service
+public class OspfControllerImpl implements OspfController {
+
+    protected static final Logger log = LoggerFactory.getLogger(OspfControllerImpl.class);
+    private final Controller ctrl = new Controller();
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected DriverService driverService;
+    protected Set<OspfRouterListener> ospfRouterListener = new HashSet<>();
+    protected Set<OspfLinkListener> ospfLinkListener = Sets.newHashSet();
+    protected OspfAgent agent = new InternalDeviceConfig();
+
+    @Activate
+    public void activate() {
+        log.info("OSPFControllerImpl activate...!!!");
+        ctrl.start(agent, driverService);
+        log.info("Started");
+    }
+
+    @Deactivate
+    public void deactivate() {
+        ctrl.stop();
+        log.info("Stopped");
+    }
+
+
+    @Override
+    public void addRouterListener(OspfRouterListener listener) {
+        if (!ospfRouterListener.contains(listener)) {
+            this.ospfRouterListener.add(listener);
+        }
+    }
+
+    @Override
+    public void removeRouterListener(OspfRouterListener listener) {
+        this.ospfRouterListener.remove(listener);
+    }
+
+    @Override
+    public void addLinkListener(OspfLinkListener listener) {
+        ospfLinkListener.add(listener);
+
+    }
+
+    @Override
+    public void removeLinkListener(OspfLinkListener listener) {
+        ospfLinkListener.remove(listener);
+
+    }
+
+    @Override
+    public Set<OspfRouterListener> listener() {
+        return ospfRouterListener;
+    }
+
+    @Override
+    public Set<OspfLinkListener> linkListener() {
+        return ospfLinkListener;
+    }
+
+
+    @Override
+    public List<OspfProcess> getAllConfiguredProcesses() {
+        List<OspfProcess> processes = ctrl.getAllConfiguredProcesses();
+        return processes;
+    }
+
+    @Override
+    public void updateConfig(List processes) {
+        List<OspfProcess> ospfProcesses = new ArrayList<>();
+        if (processes != null) {
+            for (Object process : processes) {
+                ospfProcesses.add((OspfProcess) process);
+            }
+        }
+        log.debug("updateConfig::OspfList::processes::{}", ospfProcesses);
+        ctrl.updateConfig(ospfProcesses);
+    }
+
+    @Override
+    public void deleteConfig(List<OspfProcess> processes, String attribute) {
+        List<OspfProcess> ospfProcesses = new ArrayList<>();
+        if (processes != null) {
+            for (Object process : processes) {
+                ospfProcesses.add((OspfProcess) process);
+            }
+        }
+        log.debug("deleteConfig::OspfList::processes::{}", ospfProcesses);
+        ctrl.deleteConfig(ospfProcesses, attribute);
+    }
+
+    /**
+     * Notifier for internal OSPF device and link changes.
+     */
+    private class InternalDeviceConfig implements OspfAgent {
+
+        @Override
+        public boolean addConnectedRouter(OspfRouter ospfRouter) {
+            for (OspfRouterListener l : listener()) {
+                l.routerAdded(ospfRouter);
+            }
+            return true;
+        }
+
+        @Override
+        public void removeConnectedRouter(OspfRouter ospfRouter) {
+            for (OspfRouterListener l : listener()) {
+                l.routerRemoved(ospfRouter);
+            }
+        }
+
+        @Override
+        public void addLink(OspfRouter ospfRouter, OspfLinkTed ospfLinkTed) {
+            for (OspfLinkListener l : linkListener()) {
+                l.addLink(ospfRouter, ospfLinkTed);
+            }
+
+        }
+
+        @Override
+        public void deleteLink(OspfRouter ospfRouter) {
+            for (OspfLinkListener l : linkListener()) {
+                l.deleteLink(ospfRouter);
+            }
+        }
+    }
+}
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