diff --git a/apps/openstacknetworkingui/BUCK b/apps/openstacknetworkingui/BUCK
new file mode 100644
index 0000000..d077328
--- /dev/null
+++ b/apps/openstacknetworkingui/BUCK
@@ -0,0 +1,34 @@
+COMPILE_DEPS = [
+  '//lib:CORE_DEPS',
+  '//lib:JACKSON',
+  '//core/store/serializers:onos-core-serializers',
+  '//lib:javax.ws.rs-api',
+  '//utils/rest:onlab-rest',
+  '//lib:jersey-client',
+  '//cli:onos-cli',
+  '//lib:org.apache.karaf.shell.console',
+]
+
+TEST_DEPS = [
+    '//lib:TEST_ADAPTERS',
+    '//core/api:onos-api-tests',
+    '//core/common:onos-core-common-tests',
+]
+
+osgi_jar_with_tests (
+  deps = COMPILE_DEPS,
+  test_deps = TEST_DEPS,
+  web_context = '/onos/openstacknetworkingui',
+  api_title = 'OpenStack Networking UI REST API',
+  api_version = '0.9',
+  api_description = 'OpenStack Networking UI REST API',
+  api_package = 'org.onosproject.openstacknetworkingui.web',
+)
+
+onos_app (
+  app_name = 'org.onosproject.openstacknetworkingui',
+  title = 'Openstack Networking UI',
+  category = 'Utility',
+  url = 'http://onosproject.org',
+  description = 'Openstack Networking UI Service',
+)
diff --git a/apps/openstacknetworkingui/pom.xml b/apps/openstacknetworkingui/pom.xml
new file mode 100644
index 0000000..de9d24b
--- /dev/null
+++ b/apps/openstacknetworkingui/pom.xml
@@ -0,0 +1,158 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+  ~ Copyright 2017 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.
+  -->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>org.onosproject</groupId>
+        <artifactId>onos-apps</artifactId>
+        <version>1.12.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>onos-apps-openstacknetworkingui</artifactId>
+    <packaging>bundle</packaging>
+
+    <description>OpenStack Networking UI Service</description>
+    <url>http://onosproject.org</url>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <onos.app.name>org.onosproject.openstacknetworkingui</onos.app.name>
+        <onos.app.title>OpenStack Networking UI Service</onos.app.title>
+        <onos.app.category>UI</onos.app.category>
+        <onos.app.url>http://onosproject.org</onos.app.url>
+        <onos.app.readme>OpenStack Networking UI Application</onos.app.readme>
+        <web.context>/onos/openstacknetworkingui</web.context>
+        <api.version>1.0.0</api.version>
+        <api.title>OpenStack Networking UI REST API</api.title>
+        <api.description>
+            APIs for interacting with OpenStack Networking Monitoring server.
+        </api.description>
+        <api.package>org.onosproject.openstacknetworkingui.web</api.package>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.onosproject</groupId>
+            <artifactId>onos-api</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.onosproject</groupId>
+            <artifactId>onlab-osgi</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>javax.ws.rs</groupId>
+            <artifactId>javax.ws.rs-api</artifactId>
+            <version>2.0.1</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.onosproject</groupId>
+            <artifactId>onos-cli</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.karaf.shell</groupId>
+            <artifactId>org.apache.karaf.shell.console</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.felix</groupId>
+            <artifactId>org.apache.felix.scr.annotations</artifactId>
+            <version>1.9.12</version>
+            <scope>provided</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.glassfish.jersey.containers</groupId>
+            <artifactId>jersey-container-servlet</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.glassfish.jersey.core</groupId>
+            <artifactId>jersey-client</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.glassfish.jersey.core</groupId>
+            <artifactId>jersey-common</artifactId>
+            <version>2.25</version>
+        </dependency>
+
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-annotations</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>commons-io</groupId>
+            <artifactId>commons-io</artifactId>
+            <version>2.4</version>
+        </dependency>
+
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.felix</groupId>
+                <artifactId>maven-bundle-plugin</artifactId>
+                <extensions>true</extensions>
+                <configuration>
+                    <instructions>
+                        <_wab>src/main/webapp/</_wab>
+                        <Include-Resource>
+                            WEB-INF/classes/apidoc/swagger.json=target/swagger.json,
+                            {maven-resources}
+                        </Include-Resource>
+                        <Bundle-SymbolicName>
+                            ${project.groupId}.${project.artifactId}
+                        </Bundle-SymbolicName>
+                        <Import-Package>
+                            *,org.glassfish.jersey.servlet
+                        </Import-Package>
+                        <Web-ContextPath>${web.context}</Web-ContextPath>
+                    </instructions>
+                </configuration>
+            </plugin>
+
+            <plugin>
+                <groupId>org.apache.felix</groupId>
+                <artifactId>maven-scr-plugin</artifactId>
+            </plugin>
+
+            <plugin>
+                <groupId>org.onosproject</groupId>
+                <artifactId>onos-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+
+
+
+</project>
diff --git a/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/OpenstackLink.java b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/OpenstackLink.java
new file mode 100644
index 0000000..7da4402
--- /dev/null
+++ b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/OpenstackLink.java
@@ -0,0 +1,102 @@
+/*
+ * Copyright 2017-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.openstacknetworkingui;
+
+import org.onosproject.net.Link;
+import org.onosproject.net.LinkKey;
+
+import org.onosproject.ui.topo.BiLink;
+import org.onosproject.ui.topo.LinkHighlight;
+import org.onosproject.ui.topo.Mod;
+
+import java.util.Objects;
+
+import static com.google.common.base.MoreObjects.toStringHelper;
+import static org.onosproject.ui.topo.LinkHighlight.Flavor.SECONDARY_HIGHLIGHT;
+
+/**
+ * Link for OpenStack Networking UI service.
+ */
+public class OpenstackLink extends BiLink {
+
+    private static final Mod PORT_TRAFFIC_GREEN = new Mod("port-traffic-green");
+    private static final Mod PORT_TRAFFIC_ORANGE = new Mod("port-traffic-orange");
+
+    public OpenstackLink(LinkKey key, Link link) {
+        super(key, link);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj instanceof OpenstackLink) {
+            OpenstackLink that = (OpenstackLink) obj;
+            if (Objects.equals(linkId(), that.linkId())) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(linkId());
+    }
+
+    @Override
+    public String toString() {
+        return toStringHelper(this)
+                .add("linkId", linkId())
+                .add("link src", one().src().deviceId())
+                .add("link dst", one().dst().deviceId())
+                .toString();
+    }
+
+    @Override
+    public LinkHighlight highlight(Enum<?> type) {
+        RequestType requestType = (RequestType) type;
+
+        Mod m = null;
+
+        switch (requestType) {
+            case HOST_SELECTED:
+                m = PORT_TRAFFIC_GREEN;
+                break;
+            case DEVICE_SELECTED:
+                m = PORT_TRAFFIC_ORANGE;
+                break;
+            default:
+                break;
+        }
+        LinkHighlight hlite = new LinkHighlight(linkId(), SECONDARY_HIGHLIGHT);
+        if (m != null) {
+            hlite.addMod(m);
+        }
+
+        return hlite;
+    }
+
+    /**
+     * Designates requested type.
+     */
+    public enum RequestType {
+        HOST_SELECTED,
+        DEVICE_SELECTED,
+    }
+}
diff --git a/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/OpenstackLinkMap.java b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/OpenstackLinkMap.java
new file mode 100644
index 0000000..7086b4c
--- /dev/null
+++ b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/OpenstackLinkMap.java
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2017-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.openstacknetworkingui;
+
+import org.onosproject.net.Link;
+import org.onosproject.net.LinkKey;
+import org.onosproject.ui.topo.BiLinkMap;
+
+/**
+ * Link for OpenStack Networking UI service.
+ */
+public class OpenstackLinkMap extends BiLinkMap<OpenstackLink> {
+    @Override
+    protected OpenstackLink create(LinkKey linkKey, Link link) {
+        return new OpenstackLink(linkKey, link);
+    }
+}
diff --git a/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/OpenstackNetworkingUiManager.java b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/OpenstackNetworkingUiManager.java
new file mode 100644
index 0000000..daeebec
--- /dev/null
+++ b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/OpenstackNetworkingUiManager.java
@@ -0,0 +1,187 @@
+/*
+ * Copyright 2017-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.openstacknetworkingui;
+
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.Streams;
+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.ConnectPoint;
+import org.onosproject.net.Device;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.Port;
+import org.onosproject.net.device.DeviceService;
+import org.onosproject.net.driver.DriverService;
+import org.onosproject.net.link.DefaultLinkDescription;
+import org.onosproject.net.link.LinkDescription;
+import org.onosproject.net.link.LinkStore;
+import org.onosproject.net.provider.ProviderId;
+import org.onosproject.ui.UiExtension;
+import org.onosproject.ui.UiExtensionService;
+import org.onosproject.ui.UiMessageHandlerFactory;
+import org.onosproject.ui.UiTopoOverlayFactory;
+import org.onosproject.ui.UiView;
+import org.onosproject.ui.UiViewHidden;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.onosproject.net.Link.Type;
+
+import java.util.List;
+import java.util.NoSuchElementException;
+import java.util.Optional;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+/**
+ * Implementation of OpenStack Networking UI service.
+ */
+@Service
+@Component(immediate = true)
+public class OpenstackNetworkingUiManager implements OpenstackNetworkingUiService {
+
+    private static final ClassLoader CL = OpenstackNetworkingUiManager.class.getClassLoader();
+    private static final String VIEW_ID = "sonaTopov";
+    private static final String PORT_NAME = "portName";
+    private static final String VXLAN = "vxlan";
+    private static final String OVS = "ovs";
+    private static final String APP_ID = "org.onosproject.openstacknetworkingui";
+    private static final String SONA_GUI = "sonagui";
+
+    private final Logger log = LoggerFactory.getLogger(getClass());
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected UiExtensionService uiExtensionService;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected DeviceService deviceService;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected DriverService driverService;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected LinkStore linkStore;
+    Set<Device> vDevices;
+
+    private OpenstackNetworkingUiMessageHandler messageHandler = new OpenstackNetworkingUiMessageHandler();
+
+    private final List<UiView> uiViews = ImmutableList.of(
+            new UiViewHidden(VIEW_ID)
+    );
+
+
+    private final UiMessageHandlerFactory messageHandlerFactory =
+            () -> ImmutableList.of(messageHandler);
+
+    private final UiTopoOverlayFactory topoOverlayFactory =
+            () -> ImmutableList.of(new OpenstackNetworkingUiOverlay());
+
+    protected UiExtension extension =
+            new UiExtension.Builder(CL, uiViews)
+                    .resourcePath(VIEW_ID)
+                    .messageHandlerFactory(messageHandlerFactory)
+                    .topoOverlayFactory(topoOverlayFactory)
+                    .build();
+
+    @Activate
+    protected void activate() {
+        uiExtensionService.register(extension);
+
+        vDevices = Streams.stream(deviceService.getAvailableDevices())
+                .filter(this::isVirtualDevice)
+                .collect(Collectors.toSet());
+
+        vDevices.forEach(this::createLinksConnectedToTargetvDevice);
+
+        log.info("Started");
+    }
+
+    @Deactivate
+    protected void deactivate() {
+        uiExtensionService.unregister(extension);
+        log.info("Stopped");
+    }
+
+    @Override
+    public void sendMessage(String type, ObjectNode payload) {
+        messageHandler.sendMessagetoUi(type, payload);
+    }
+
+    @Override
+    public void setRestServerIp(String ipAddress) {
+        messageHandler.setRestUrl(ipAddress);
+    }
+
+    @Override
+    public String restServerUrl() {
+        return messageHandler.restUrl();
+    }
+
+    @Override
+    public void setRestServerAuthInfo(String id, String password) {
+        messageHandler.setRestAuthInfo(id, password);
+    }
+
+    @Override
+    public String restServerAuthInfo() {
+        return messageHandler.restAuthInfo();
+    }
+
+
+    private Optional<Port> vxlanPort(DeviceId deviceId) {
+        return deviceService.getPorts(deviceId)
+                .stream()
+                .filter(port -> port.annotations().value(PORT_NAME).equals(VXLAN))
+                .findAny();
+    }
+    private boolean isVirtualDevice(Device device) {
+        return driverService.getDriver(device.id()).name().equals(OVS);
+    }
+
+    private void createLinksConnectedToTargetvDevice(Device targetvDevice) {
+        vDevices.stream().filter(d -> !d.equals(targetvDevice))
+                .forEach(device -> {
+                    if (vxlanPort(targetvDevice.id()).isPresent() && vxlanPort(device.id()).isPresent()) {
+                        ConnectPoint srcConnectPoint = createConnectPoint(targetvDevice.id());
+
+                        ConnectPoint dstConnectPoint = createConnectPoint(device.id());
+
+                        LinkDescription linkDescription = createLinkDescription(srcConnectPoint, dstConnectPoint);
+
+                        linkStore.createOrUpdateLink(new ProviderId(SONA_GUI, APP_ID),
+                                linkDescription);
+                    }
+                });
+    }
+
+    private ConnectPoint createConnectPoint(DeviceId deviceId) {
+        try {
+            return new ConnectPoint(deviceId, vxlanPort(deviceId).get().number());
+        } catch (NoSuchElementException exception) {
+            log.warn("Exception occured because of {}", exception.toString());
+            return null;
+        }
+    }
+
+    private LinkDescription createLinkDescription(ConnectPoint srcConnectPoint, ConnectPoint dstConnectPoint) {
+        return new DefaultLinkDescription(srcConnectPoint, dstConnectPoint, Type.DIRECT, true);
+    }
+
+}
diff --git a/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/OpenstackNetworkingUiMessageHandler.java b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/OpenstackNetworkingUiMessageHandler.java
new file mode 100644
index 0000000..0e8b781
--- /dev/null
+++ b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/OpenstackNetworkingUiMessageHandler.java
@@ -0,0 +1,452 @@
+/*
+ * Copyright 2017-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.openstacknetworkingui;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import com.google.common.base.Strings;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Lists;
+import com.google.common.collect.Sets;
+import com.google.common.collect.Streams;
+import org.onlab.osgi.ServiceDirectory;
+import org.onosproject.cluster.ClusterService;
+import org.onosproject.net.Device;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.Element;
+import org.onosproject.net.Host;
+import org.onosproject.net.HostId;
+import org.onosproject.net.Path;
+import org.onosproject.net.device.DeviceService;
+import org.onosproject.net.host.HostService;
+import org.onosproject.net.topology.PathService;
+import org.onosproject.ui.JsonUtils;
+import org.onosproject.ui.RequestHandler;
+import org.onosproject.ui.UiConnection;
+import org.onosproject.ui.UiMessageHandler;
+import org.apache.commons.io.IOUtils;
+
+import org.onosproject.ui.topo.Highlights;
+import org.onosproject.ui.topo.HostHighlight;
+import org.onosproject.ui.topo.NodeBadge;
+import org.onosproject.ui.topo.NodeBadge.Status;
+import org.onosproject.ui.topo.TopoJson;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.ws.rs.client.Client;
+import javax.ws.rs.client.ClientBuilder;
+import javax.ws.rs.client.Entity;
+import javax.ws.rs.client.Invocation;
+import javax.ws.rs.client.WebTarget;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
+import java.util.Base64;
+import java.util.Collection;
+import java.util.List;
+import java.util.Set;
+
+
+import static org.onosproject.net.DefaultEdgeLink.createEdgeLink;
+
+/**
+ * OpenStack Networking UI message handler.
+ */
+public class OpenstackNetworkingUiMessageHandler extends UiMessageHandler {
+
+    private static final String OPENSTACK_NETWORKING_UI_START = "openstackNetworkingUiStart";
+    private static final String OPENSTACK_NETWORKING_UI_UPDATE = "openstackNetworkingUiUpdate";
+    private static final String OPENSTACK_NETWORKING_UI_STOP = "openstackNetworkingUiStop";
+    private static final String ANNOTATION_NETWORK_ID = "networkId";
+    private static final String FLOW_TRACE_REQUEST = "flowTraceRequest";
+    private static final String SRC_IP = "srcIp";
+    private static final String DST_IP = "dstIp";
+    private static final String ANNOTATION_SEGMENT_ID = "segId";
+    private static final String AUTHORIZATION = "Authorization";
+    private static final String COMMAND = "command";
+    private static final String FLOW_TRACE = "flowtrace";
+    private static final String REVERSE = "reverse";
+    private static final String TRANSACTION_ID = "transaction_id";
+    private static final String TRANSACTION_VALUE = "sona";
+    private static final String APP_REST_URL = "app_rest_url";
+    private static final String MATCHING_FIELDS = "matchingfields";
+    private static final String SOURCE_IP = "source_ip";
+    private static final String DESTINATION_IP = "destination_ip";
+    private static final String TO_GATEWAY = "to_gateway";
+    private static final String IP_PROTOCOL = "ip_protocol";
+    private static final String HTTP = "http://";
+    private static final String OPENSTACK_NETWORKING_UI_RESULT = ":8181/onos/openstacknetworkingui/result";
+
+    private static final String ID = "id";
+    private static final String MODE = "mode";
+    private static final String MOUSE = "mouse";
+
+    private enum Mode { IDLE, MOUSE }
+
+    private final Logger log = LoggerFactory.getLogger(getClass());
+
+    private DeviceService deviceService;
+    private HostService hostService;
+    private PathService pathService;
+    private ClusterService clusterService;
+    private String restUrl;
+    private String restAuthInfo;
+    private Mode currentMode = Mode.IDLE;
+    private Element elementOfNote;
+    private final Client client = ClientBuilder.newClient();
+
+
+    // ===============-=-=-=-=-=-======================-=-=-=-=-=-=-================================
+
+
+    @Override
+    public void init(UiConnection connection, ServiceDirectory directory) {
+        super.init(connection, directory);
+        deviceService = directory.get(DeviceService.class);
+        hostService = directory.get(HostService.class);
+        pathService = directory.get(PathService.class);
+        clusterService = directory.get(ClusterService.class);
+    }
+
+    @Override
+    protected Collection<RequestHandler> createRequestHandlers() {
+        return ImmutableSet.of(
+                new DisplayStartHandler(),
+                new DisplayUpdateHandler(),
+                new DisplayStopHandler(),
+                new FlowTraceRequestHandler()
+        );
+    }
+
+    public void setRestUrl(String ipAddress) {
+        restUrl = "http://" + ipAddress + ":8000/trace_request";
+    }
+
+    public String restUrl() {
+        return restUrl;
+    }
+
+    public void setRestAuthInfo(String id, String password) {
+        restAuthInfo = Base64.getEncoder().encodeToString(id.concat(":").concat(password).getBytes());
+    }
+
+    public String restAuthInfo() {
+        return restAuthInfo;
+    }
+
+    private final class DisplayStartHandler extends RequestHandler {
+
+        public DisplayStartHandler() {
+            super(OPENSTACK_NETWORKING_UI_START);
+        }
+
+        @Override
+        public void process(ObjectNode payload) {
+            String mode = string(payload, MODE);
+
+            log.debug("Start Display: mode [{}]", mode);
+            clearState();
+            clearForMode();
+
+            switch (mode) {
+                case MOUSE:
+                    currentMode = Mode.MOUSE;
+                    sendMouseData();
+                    break;
+
+                default:
+                    currentMode = Mode.IDLE;
+                    break;
+            }
+        }
+    }
+
+    private final class FlowTraceRequestHandler extends RequestHandler {
+        public FlowTraceRequestHandler() {
+            super(FLOW_TRACE_REQUEST);
+        }
+
+        @Override
+        public void process(ObjectNode payload) {
+            String srcIp = string(payload, SRC_IP);
+            String dstIp = string(payload, DST_IP);
+            log.debug("SendEvent called with src IP: {}, dst IP: {}", srcIp, dstIp);
+
+            ObjectNode objectNode = getFlowTraceRequestAsJson(srcIp, dstIp);
+            InputStream byteArrayInputStream
+                    = new ByteArrayInputStream(objectNode.toString().getBytes());
+
+            Invocation.Builder builder = getClientBuilder(restUrl);
+
+            if (builder == null) {
+                log.error("Fail to get the client builder for the trace from {} to {}", srcIp, dstIp);
+                return;
+            }
+
+            try {
+                Response response = builder.header(AUTHORIZATION, restAuthInfo.toString())
+                        .post(Entity.entity(IOUtils.toString(byteArrayInputStream, StandardCharsets.UTF_8),
+                                MediaType.APPLICATION_JSON_TYPE));
+
+                log.debug("Response from server: {}", response);
+
+                if (response.getStatus() != 200) {
+                    log.error("FlowTraceRequest failed because of {}", response);
+                }
+
+            } catch (IOException e) {
+                log.error("Exception occured because of {}", e.toString());
+            }
+
+        }
+    }
+
+    private ObjectNode getFlowTraceRequestAsJson(String srcIp, String dstIp) {
+        ObjectMapper mapper = new ObjectMapper();
+        String controllerUrl = HTTP + clusterService.getLocalNode().ip()
+                + OPENSTACK_NETWORKING_UI_RESULT;
+
+        ObjectNode objectNode = mapper.createObjectNode();
+
+        objectNode.put(COMMAND, FLOW_TRACE)
+                .put(REVERSE, false)
+                .put(TRANSACTION_ID, TRANSACTION_VALUE)
+                .put(APP_REST_URL, controllerUrl);
+
+        if (srcIp.equals(dstIp)) {
+            objectNode.putObject(MATCHING_FIELDS)
+                    .put(SOURCE_IP, srcIp)
+                    .put(DESTINATION_IP, dstIp)
+                    .put(TO_GATEWAY, true)
+                    .put(IP_PROTOCOL, 1);
+
+        } else {
+            objectNode.putObject(MATCHING_FIELDS)
+                    .put(SOURCE_IP, srcIp)
+                    .put(DESTINATION_IP, dstIp);
+        }
+        return  objectNode;
+    }
+
+    private Invocation.Builder getClientBuilder(String url) {
+        if (Strings.isNullOrEmpty(url)) {
+            log.warn("URL in not set");
+            return null;
+        }
+
+        WebTarget wt = client.target(url);
+
+        return wt.request(MediaType.APPLICATION_JSON_TYPE);
+    }
+
+    private final class DisplayUpdateHandler extends RequestHandler {
+        public DisplayUpdateHandler() {
+            super(OPENSTACK_NETWORKING_UI_UPDATE);
+        }
+
+        @Override
+        public void process(ObjectNode payload) {
+            String id = string(payload, ID);
+            log.debug("Update Display: id [{}]", id);
+            if (!Strings.isNullOrEmpty(id)) {
+                updateForMode(id);
+            } else {
+                clearForMode();
+            }
+        }
+    }
+
+    private final class DisplayStopHandler extends RequestHandler {
+        public DisplayStopHandler() {
+            super(OPENSTACK_NETWORKING_UI_STOP);
+        }
+
+        @Override
+        public void process(ObjectNode payload) {
+            log.debug("Stop Display");
+            clearState();
+            clearForMode();
+        }
+    }
+
+    // === ------------
+
+    private void clearState() {
+        currentMode = Mode.IDLE;
+        elementOfNote = null;
+    }
+
+    private void updateForMode(String id) {
+
+        try {
+            HostId hid = HostId.hostId(id);
+            elementOfNote = hostService.getHost(hid);
+
+        } catch (Exception e) {
+            try {
+                DeviceId did = DeviceId.deviceId(id);
+                elementOfNote = deviceService.getDevice(did);
+
+            } catch (Exception e2) {
+                log.debug("Unable to process ID [{}]", id);
+                elementOfNote = null;
+            }
+        }
+
+        switch (currentMode) {
+            case MOUSE:
+                sendMouseData();
+                break;
+
+            default:
+                break;
+        }
+
+    }
+
+    private void clearForMode() {
+        sendHighlights(new Highlights());
+    }
+
+    private void sendHighlights(Highlights highlights) {
+        sendMessage(TopoJson.highlightsMessage(highlights));
+    }
+
+    public void sendMessagetoUi(String type, ObjectNode payload) {
+        sendMessage(JsonUtils.envelope(type, payload));
+    }
+
+    private int getVni(Host host) {
+        String vni = host.annotations().value(ANNOTATION_SEGMENT_ID);
+
+        return vni == null ? 0 : Integer.valueOf(vni).intValue();
+    }
+
+    private void sendMouseData() {
+        Highlights highlights = new Highlights();
+
+        if (elementOfNote != null && elementOfNote instanceof Device) {
+            DeviceId deviceId = (DeviceId) elementOfNote.id();
+
+            List<OpenstackLink> edgeLinks = edgeLinks(deviceId);
+
+            edgeLinks.forEach(edgeLink -> {
+                highlights.add(edgeLink.highlight(OpenstackLink.RequestType.DEVICE_SELECTED));
+            });
+
+            hostService.getConnectedHosts(deviceId).forEach(host -> {
+                HostHighlight hostHighlight = new HostHighlight(host.id().toString());
+                hostHighlight.setBadge(createBadge(getVni(host)));
+                highlights.add(hostHighlight);
+            });
+
+            sendHighlights(highlights);
+
+        } else if (elementOfNote != null && elementOfNote instanceof Host) {
+
+            HostId hostId = HostId.hostId(elementOfNote.id().toString());
+            if (!hostMadeFromOpenstack(hostId)) {
+                return;
+            }
+
+            List<OpenstackLink> openstackLinks = linksInSameNetwork(hostId);
+
+            openstackLinks.forEach(openstackLink -> {
+                highlights.add(openstackLink.highlight(OpenstackLink.RequestType.HOST_SELECTED));
+            });
+
+            hostHighlightsInSameNetwork(hostId).forEach(highlights::add);
+
+            sendHighlights(highlights);
+
+        }
+    }
+
+    private boolean hostMadeFromOpenstack(HostId hostId) {
+        return hostService.getHost(hostId).annotations()
+                .value(ANNOTATION_NETWORK_ID) == null ? false : true;
+    }
+
+    private String networkId(HostId hostId) {
+        return hostService.getHost(hostId).annotations().value(ANNOTATION_NETWORK_ID);
+    }
+
+    private Set<HostHighlight> hostHighlightsInSameNetwork(HostId hostId) {
+
+        Set<HostHighlight> hostHighlights = Sets.newHashSet();
+        Streams.stream(hostService.getHosts())
+                .filter(host -> isHostInSameNetwork(host, networkId(hostId)))
+                .forEach(host -> {
+                    HostHighlight hostHighlight = new HostHighlight(host.id().toString());
+                    hostHighlight.setBadge(createBadge(getVni(host)));
+                    hostHighlights.add(hostHighlight);
+                });
+
+        return hostHighlights;
+    }
+
+    private List<OpenstackLink> edgeLinks(DeviceId deviceId) {
+        OpenstackLinkMap openstackLinkMap = new OpenstackLinkMap();
+
+        hostService.getConnectedHosts(deviceId).forEach(host -> {
+            openstackLinkMap.add(createEdgeLink(host, true));
+            openstackLinkMap.add(createEdgeLink(host, false));
+        });
+
+        List<OpenstackLink> edgeLinks = Lists.newArrayList();
+
+        openstackLinkMap.biLinks().forEach(edgeLinks::add);
+
+        return edgeLinks;
+    }
+
+    private List<OpenstackLink> linksInSameNetwork(HostId hostId) {
+        OpenstackLinkMap linkMap = new OpenstackLinkMap();
+
+        Streams.stream(hostService.getHosts())
+                .filter(host -> isHostInSameNetwork(host, networkId(hostId)))
+                .forEach(host -> {
+                    linkMap.add(createEdgeLink(host, true));
+                    linkMap.add(createEdgeLink(host, false));
+
+                    Set<Path> paths = pathService.getPaths(hostId,
+                            host.id());
+
+                    if (!paths.isEmpty()) {
+                        paths.forEach(path -> path.links().forEach(linkMap::add));
+                    }
+                });
+
+        List<OpenstackLink> openstackLinks = Lists.newArrayList();
+
+        linkMap.biLinks().forEach(openstackLinks::add);
+
+        return openstackLinks;
+    }
+
+    private boolean isHostInSameNetwork(Host host, String networkId) {
+        return hostService.getHost(host.id()).annotations()
+                .value(ANNOTATION_NETWORK_ID).equals(networkId);
+    }
+
+    private NodeBadge createBadge(int n) {
+        return NodeBadge.number(Status.INFO, n, "Openstack Node");
+    }
+}
diff --git a/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/OpenstackNetworkingUiOverlay.java b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/OpenstackNetworkingUiOverlay.java
new file mode 100644
index 0000000..8ad477c
--- /dev/null
+++ b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/OpenstackNetworkingUiOverlay.java
@@ -0,0 +1,79 @@
+/*
+ * Copyright 2017-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.openstacknetworkingui;
+
+import org.onlab.osgi.DefaultServiceDirectory;
+import org.onosproject.net.HostId;
+import org.onosproject.net.host.HostService;
+import org.onosproject.ui.UiTopoOverlay;
+import org.onosproject.ui.topo.ButtonId;
+import org.onosproject.ui.topo.PropertyPanel;
+
+import static org.onosproject.ui.topo.TopoConstants.Properties.INTENTS;
+import static org.onosproject.ui.topo.TopoConstants.Properties.TOPOLOGY_SSCS;
+import static org.onosproject.ui.topo.TopoConstants.Properties.TUNNELS;
+import static org.onosproject.ui.topo.TopoConstants.Properties.VERSION;
+import static org.onosproject.ui.topo.TopoConstants.Properties.VLAN;
+
+/**
+ * Topology overlay for OpenStack Networking UI.
+ */
+public class OpenstackNetworkingUiOverlay extends UiTopoOverlay {
+    private static final String OVERLAY_ID = "sona-overlay";
+    private static final String SONA = "SONA";
+    private static final String SUMMARY_TITLE = "OpenStack Networking UI";
+    private static final String SUMMARY_VERSION = "0.9";
+    private static final String VNI = "VNI";
+    private static final String ANNOTATION_SEGMENT_ID = "segId";
+
+    private static final String NOT_AVAILABLE = "N/A";
+
+    private static final ButtonId FLOW_TRACE_BUTTON = new ButtonId("flowtrace");
+    private static final ButtonId RESET_BUTTON = new ButtonId("reset");
+    private static final ButtonId TO_GATEWAY_BUTTON = new ButtonId("toGateway");
+    private static final ButtonId TO_EXTERNAL_BUTTON = new ButtonId("toExternal");
+
+    private final HostService hostService = DefaultServiceDirectory.getService(HostService.class);
+
+    public OpenstackNetworkingUiOverlay() {
+        super(OVERLAY_ID);
+    }
+
+
+    @Override
+    public void modifySummary(PropertyPanel pp) {
+        pp.title(SUMMARY_TITLE)
+                .removeProps(
+                        TOPOLOGY_SSCS,
+                        INTENTS,
+                        TUNNELS,
+                        VERSION
+                )
+                .addProp(SONA, VERSION, SUMMARY_VERSION);
+    }
+
+    @Override
+    public void modifyHostDetails(PropertyPanel pp, HostId hostId) {
+        String vni = hostService.getHost(hostId).annotations().value(ANNOTATION_SEGMENT_ID);
+
+        pp.removeProps(VLAN);
+        pp.addProp(SONA, VNI, vni == null ? NOT_AVAILABLE : vni)
+                .addButton(FLOW_TRACE_BUTTON)
+                .addButton(RESET_BUTTON)
+                .addButton(TO_GATEWAY_BUTTON)
+                .addButton(TO_EXTERNAL_BUTTON);
+    }
+}
diff --git a/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/OpenstackNetworkingUiService.java b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/OpenstackNetworkingUiService.java
new file mode 100644
index 0000000..aea9763
--- /dev/null
+++ b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/OpenstackNetworkingUiService.java
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2017-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.openstacknetworkingui;
+
+import com.fasterxml.jackson.databind.node.ObjectNode;
+
+/**
+ * Service for OpenStack Networking UI.
+ */
+public interface OpenstackNetworkingUiService {
+
+    /**
+     * Sends message to OpenStack Networking UI.
+     *
+     * @param type event type
+     * @param payload payload
+     */
+    void sendMessage(String type, ObjectNode payload);
+
+    /**
+     * Sets the REST server ip address.
+     *
+     * @param ipAddress rest server ip address
+     */
+    void setRestServerIp(String ipAddress);
+
+    /**
+     * Gets the REST server url.
+     *
+     * @return REST server url
+     */
+    String restServerUrl();
+
+    /**
+     * Sets the REST server authorization information.
+     *
+     * @param id id
+     * @param password password
+     */
+    void setRestServerAuthInfo(String id, String password);
+
+    /**
+     * Gets the REST server authorization information.
+     *
+     * @return REST server authorization information as String
+     */
+    String restServerAuthInfo();
+
+}
diff --git a/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/cli/GetRestServerAuthInfoCommand.java b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/cli/GetRestServerAuthInfoCommand.java
new file mode 100644
index 0000000..fdaf23d
--- /dev/null
+++ b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/cli/GetRestServerAuthInfoCommand.java
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2017-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.openstacknetworkingui.cli;
+
+import org.apache.karaf.shell.commands.Command;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.openstacknetworkingui.OpenstackNetworkingUiService;
+
+/**
+ * Gets the REST server authorization information.
+ */
+@Command(scope = "onos", name = "openstacknetworking-ui-get-restserver-auth",
+        description = "Gets the REST server authorization information")
+public class GetRestServerAuthInfoCommand extends AbstractShellCommand {
+
+    @Override
+    protected void execute() {
+        OpenstackNetworkingUiService service = AbstractShellCommand.get(OpenstackNetworkingUiService.class);
+        print("Encoded information for the REST server authorization: %s", service.restServerAuthInfo());
+    }
+}
diff --git a/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/cli/GetRestServerCommand.java b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/cli/GetRestServerCommand.java
new file mode 100644
index 0000000..6cccfa1
--- /dev/null
+++ b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/cli/GetRestServerCommand.java
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2017-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.openstacknetworkingui.cli;
+
+import org.apache.karaf.shell.commands.Command;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.openstacknetworkingui.OpenstackNetworkingUiService;
+
+/**
+ * Gets the REST server url.
+ */
+
+@Command(scope = "onos", name = "openstacknetworking-ui-get-restserver-url",
+        description = "Gets the REST server url")
+public class GetRestServerCommand extends AbstractShellCommand {
+
+    @Override
+    protected void execute() {
+        OpenstackNetworkingUiService service = AbstractShellCommand.get(OpenstackNetworkingUiService.class);
+        print("REST server url : %s", service.restServerUrl());
+    }
+}
diff --git a/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/cli/SetRestServerAuthInfoCommand.java b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/cli/SetRestServerAuthInfoCommand.java
new file mode 100644
index 0000000..148818c
--- /dev/null
+++ b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/cli/SetRestServerAuthInfoCommand.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2017-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.openstacknetworkingui.cli;
+
+import org.apache.karaf.shell.commands.Argument;
+import org.apache.karaf.shell.commands.Command;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.openstacknetworkingui.OpenstackNetworkingUiService;
+
+/**
+ * Sets the REST server authorization information.
+ */
+@Command(scope = "onos", name = "openstacknetworking-ui-set-restserver-auth",
+        description = "Sets the REST server authorization information")
+public class SetRestServerAuthInfoCommand extends AbstractShellCommand {
+
+    @Argument(index = 0, name = "restServerAuthId", description = "REST server authorization id",
+            required = true, multiValued = false)
+    private String restServerAuthId = null;
+
+    @Argument(index = 1, name = "restServerAuthPass", description = "REST server authorization password",
+            required = true, multiValued = false)
+    private String restServerAuthPass = null;
+
+    @Override
+    protected void execute() {
+        OpenstackNetworkingUiService service = AbstractShellCommand.get(OpenstackNetworkingUiService.class);
+        service.setRestServerAuthInfo(restServerAuthId, restServerAuthPass);
+        print("Id and password for the REST server authorization are %s and %s.", restServerAuthId, restServerAuthPass);
+        print("Encoded result as based 64 format: %s", service.restServerAuthInfo());
+    }
+}
diff --git a/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/cli/SetRestServerCommand.java b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/cli/SetRestServerCommand.java
new file mode 100644
index 0000000..f9cef4d
--- /dev/null
+++ b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/cli/SetRestServerCommand.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2017-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.openstacknetworkingui.cli;
+
+import org.apache.karaf.shell.commands.Argument;
+import org.apache.karaf.shell.commands.Command;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.openstacknetworkingui.OpenstackNetworkingUiService;
+
+/**
+ * Sets the REST server ip address.
+ */
+@Command(scope = "onos", name = "openstacknetworking-ui-set-restserver-ip",
+        description = "Sets the REST server ip address")
+public class SetRestServerCommand extends AbstractShellCommand {
+
+    @Argument(index = 0, name = "restServerIp", description = "REST server ip address",
+            required = true, multiValued = false)
+    private String restServerIp = null;
+
+    @Override
+    protected void execute() {
+        OpenstackNetworkingUiService service = AbstractShellCommand.get(OpenstackNetworkingUiService.class);
+        service.setRestServerIp(restServerIp);
+        print("The REST server url is set to %s", service.restServerUrl());
+    }
+}
diff --git a/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/cli/package-info.java b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/cli/package-info.java
new file mode 100644
index 0000000..2a69dda
--- /dev/null
+++ b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/cli/package-info.java
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2017-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.
+ */
+
+/**
+ *  CLI handlers of OpenStack Networking UI service.
+ */
+package org.onosproject.openstacknetworkingui.cli;
\ No newline at end of file
diff --git a/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/package-info.java b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/package-info.java
new file mode 100644
index 0000000..3e08d0b
--- /dev/null
+++ b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/package-info.java
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2017-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.
+ */
+
+/**
+ * OpenStack Networking UI package.
+ */
+package org.onosproject.openstacknetworkingui;
\ No newline at end of file
diff --git a/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/web/FlowTraceWebResource.java b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/web/FlowTraceWebResource.java
new file mode 100644
index 0000000..d4fbf28
--- /dev/null
+++ b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/web/FlowTraceWebResource.java
@@ -0,0 +1,75 @@
+/*
+ * Copyright 2017-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.openstacknetworkingui.web;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.SerializationFeature;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.onlab.osgi.DefaultServiceDirectory;
+import org.onosproject.openstacknetworkingui.OpenstackNetworkingUiService;
+import org.onosproject.rest.AbstractWebResource;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.ws.rs.Consumes;
+import javax.ws.rs.POST;
+import javax.ws.rs.Path;
+import javax.ws.rs.Produces;
+import javax.ws.rs.core.Context;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.UriInfo;
+import java.io.IOException;
+import java.io.InputStream;
+
+import static javax.ws.rs.core.Response.status;
+
+/**
+ * Handles REST API from monitoring server.
+ */
+
+@Path("result")
+public class FlowTraceWebResource extends AbstractWebResource {
+    protected final Logger log = LoggerFactory.getLogger(getClass());
+    private final OpenstackNetworkingUiService uiService =
+            DefaultServiceDirectory.getService(OpenstackNetworkingUiService.class);
+
+    private static final String FLOW_TRACE_RESULT = "flowTraceResult";
+
+    @Context
+    private UriInfo uriInfo;
+
+    @POST
+    @Consumes(MediaType.APPLICATION_JSON)
+    @Produces(MediaType.APPLICATION_JSON)
+    public Response flowTraceResponse(InputStream inputStream) throws IOException {
+        try {
+            JsonNode jsonNode = mapper().enable(SerializationFeature.INDENT_OUTPUT).readTree(inputStream);
+            ObjectNode objectNode = jsonNode.deepCopy();
+
+            log.debug("FlowTraceResponse: {}", jsonNode.toString());
+
+            uiService.sendMessage(FLOW_TRACE_RESULT, objectNode);
+
+        } catch (IOException e) {
+            log.error("Exception occured because of {}", e.toString());
+        }
+
+        return status(Response.Status.OK).build();
+    }
+
+}
diff --git a/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/web/package-info.java b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/web/package-info.java
new file mode 100644
index 0000000..570f9cf
--- /dev/null
+++ b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/web/package-info.java
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2017-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.
+ */
+
+/**
+ *  Web implementation of OpenStack Networking UI service.
+ */
+package org.onosproject.openstacknetworkingui.web;
\ No newline at end of file
diff --git a/apps/openstacknetworkingui/src/main/resources/OSGI-INF/blueprint/shell-config.xml b/apps/openstacknetworkingui/src/main/resources/OSGI-INF/blueprint/shell-config.xml
new file mode 100644
index 0000000..9e78f63
--- /dev/null
+++ b/apps/openstacknetworkingui/src/main/resources/OSGI-INF/blueprint/shell-config.xml
@@ -0,0 +1,31 @@
+<!--
+~ Copyright 2017-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.
+-->
+<blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0">
+    <command-bundle xmlns="http://karaf.apache.org/xmlns/shell/v1.1.0">
+        <command>
+            <action class="org.onosproject.openstacknetworkingui.cli.SetRestServerCommand"/>
+        </command>
+        <command>
+            <action class="org.onosproject.openstacknetworkingui.cli.GetRestServerCommand"/>
+        </command>
+        <command>
+            <action class="org.onosproject.openstacknetworkingui.cli.GetRestServerAuthInfoCommand"/>
+        </command>
+        <command>
+            <action class="org.onosproject.openstacknetworkingui.cli.SetRestServerAuthInfoCommand"/>
+        </command>
+    </command-bundle>
+</blueprint>
diff --git a/apps/openstacknetworkingui/src/main/resources/app/view/sonaTopov/sonaTopov.css b/apps/openstacknetworkingui/src/main/resources/app/view/sonaTopov/sonaTopov.css
new file mode 100644
index 0000000..11523e1
--- /dev/null
+++ b/apps/openstacknetworkingui/src/main/resources/app/view/sonaTopov/sonaTopov.css
@@ -0,0 +1,126 @@
+/*
+ * Copyright 2017-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.
+ */
+
+/* css for OpenStack Networking UI.  */
+
+#traceInfoDialogId h2 {
+    text-align: center;
+    width: 200px;
+    margin: 0;
+    font-weight: lighter;
+    word-wrap: break-word;
+    display: inline-block;
+    vertical-align: middle;
+    font-size: 14pt;
+}
+
+div.traceInfo table {
+    border-collapse: collapse;
+    table-layout: fixed;
+    empty-cells: show;
+    margin: 0;
+    width: 200px;
+}
+
+div.traceInfo td {
+    cursor: pointer;
+    font-variant: small-caps;
+
+    font-size: 10pt;
+    padding-top: 14px;
+    padding-bottom: 14px;
+
+    letter-spacing: 0.02em;
+    cursor: pointer;
+
+    color: #3c3a3a;
+    width: 100px;
+}
+
+div.traceInfo td.label {
+    font-weight: bold;
+}
+
+#flowTraceResultDialogId h2 {
+    text-align: center;
+    width: 600px;
+
+    padding: 0 0 0 10px;
+    margin: 0;
+    font-weight: lighter;
+    word-wrap: break-word;
+    display: inline-block;
+    vertical-align: middle;
+}
+
+div.flowTraceResult table {
+    border-collapse: collapse;
+    table-layout: fixed;
+    empty-cells: show;
+    margin: 0;
+    width: 600px;
+}
+
+div.flowTraceResult td {
+    padding: 4px;
+    text-align: center;
+    word-wrap: break-word;
+    font-size: 12pt;
+}
+
+div.flowTraceResult .table-header td {
+    font-weight: bold;
+    font-variant: small-caps;
+    text-transform: uppercase;
+    font-size: 11pt;
+    padding-top: 14px;
+    padding-bottom: 14px;
+
+    letter-spacing: 0.02em;
+    cursor: pointer;
+
+    background-color: #e5e5e6;
+    color: #3c3a3a;
+    width: 120px;
+
+}
+
+div.flowTraceResult .table-body tr:nth-child(even) {
+    background-color: #f4f4f4;
+}
+
+div.flowTraceResult .table-body tr:nth-child(odd) {
+    background-color: #fbfbfb;
+}
+
+div.flowTraceResult .table-body td {
+    cursor: pointer;
+    font-variant: small-caps;
+
+    font-size: 10pt;
+    padding-top: 14px;
+    padding-bottom: 14px;
+
+    letter-spacing: 0.02em;
+    cursor: pointer;
+
+    color: #3c3a3a;
+    width: 120px;
+}
+
+div.flowTraceResult .table-body tr.drop {
+    background-color: #e28d8d;
+}
\ No newline at end of file
diff --git a/apps/openstacknetworkingui/src/main/resources/app/view/sonaTopov/sonaTopov.html b/apps/openstacknetworkingui/src/main/resources/app/view/sonaTopov/sonaTopov.html
new file mode 100644
index 0000000..8d31977
--- /dev/null
+++ b/apps/openstacknetworkingui/src/main/resources/app/view/sonaTopov/sonaTopov.html
@@ -0,0 +1,4 @@
+<!-- partial HTML -->
+<div id="ov-sona-topov">
+    <p>This is a hidden view .. just a placeholder to house the javascript</p>
+</div>
diff --git a/apps/openstacknetworkingui/src/main/resources/app/view/sonaTopov/sonaTopovOverlay.js b/apps/openstacknetworkingui/src/main/resources/app/view/sonaTopov/sonaTopovOverlay.js
new file mode 100644
index 0000000..39517b6
--- /dev/null
+++ b/apps/openstacknetworkingui/src/main/resources/app/view/sonaTopov/sonaTopovOverlay.js
@@ -0,0 +1,220 @@
+/*
+ * Copyright 2017-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.
+ */
+
+/* OpenStack Networking UI Overlay description */
+(function () {
+    'use strict';
+
+    // injected refs
+    var $log, tov, sts, flash, ds, wss;
+    var traceSrc = null;
+    var traceDst = null;
+
+    var traceInfoDialogId = 'traceInfoDialogId',
+        traceInfoDialogOpt = {
+            width: 200,
+            edge: 'left',
+            margin: 20,
+            hideMargin: -20
+        }
+
+       var overlay = {
+        // NOTE: this must match the ID defined in AppUiTopovOverlay
+        overlayId: 'sona-overlay',
+        glyphId: '*star4',
+        tooltip: 'OpenstackNetworking UI',
+
+        glyphs: {
+            star4: {
+                vb: '0 0 8 8',
+                d: 'M1,4l2,-1l1,-2l1,2l2,1l-2,1l-1,2l-1,-2z'
+            },
+            banner: {
+                vb: '0 0 6 6',
+                d: 'M1,1v4l2,-2l2,2v-4z'
+            }
+        },
+
+        activate: function () {
+            $log.debug("OpenstackNetworking UI ACTIVATED");
+        },
+        deactivate: function () {
+            sts.stopDisplay();
+            $log.debug("OpenstackNetworking UI DEACTIVATED");
+        },
+
+        // detail panel button definitions
+        buttons: {
+            flowtrace: {
+                gid: 'checkMark',
+                tt: 'Flow Trace',
+                cb: function (data) {
+
+                    if (traceSrc == null && data.navPath == 'host') {
+                        traceSrc = data.title;
+
+                        flash.flash('Src ' + traceSrc + ' selected. Please select the dst');
+                    } else if (traceDst == null && data.title != traceSrc && data.navPath == 'host') {
+                        traceDst = data.title;
+                        openTraceInfoDialog();
+                        flash.flash('Dst ' + traceDst + ' selected. Press Request button');
+                    }
+
+                    $log.debug('Perform flow trace test between VMs:', data);
+                }
+            },
+
+            reset: {
+                gid: 'xMark',
+                tt: 'Reset',
+                cb: function (data) {
+                    flash.flash('Reset flow trace');
+                    traceSrc = null;
+                    traceDst = null;
+                    ds.closeDialog();
+                    $log.debug('BAR action invoked with data:', data);
+                }
+            },
+            toGateway: {
+                gid: 'm_switch',
+                tt: 'Trace to Gateway',
+                cb: function (data) {
+                    if (traceSrc != null && data.title == traceSrc && data.navPath == 'host') {
+                        //Set traceSrc to traceDst in case trace to gateway
+                        traceDst = traceSrc;
+                        openTraceInfoDialog();
+                        flash.flash('Trace to Gateway');
+                    }
+                }
+            },
+            toExternal: {
+                gid: 'm_cloud',
+                tt: 'Trace to External',
+                cb: function (data) {
+                    if (traceSrc != null && data.title == traceSrc && data.navPath == 'host') {
+                        //Set traceDst to 8.8.8.8 to check external connection
+                        traceDst = '8.8.8.8';
+                        openTraceInfoDialog();
+                        flash.flash('Trace to External')
+                    }
+               }
+            }
+        },
+
+        keyBindings: {
+                    0: {
+                        cb: function () { sts.stopDisplay(); },
+                        tt: 'Cancel OpenstackNetworking UI Overlay Mode',
+                        gid: 'xMark'
+                    },
+                    V: {
+                        cb: function () {
+                            wss.bindHandlers({
+                                flowTraceResult: sts,
+                            });
+                            sts.startDisplay('mouse');
+                        },
+                        tt: 'Start OpenstackNetworking UI Overlay Mode',
+                        gid: 'crown'
+                    },
+
+                    _keyOrder: [
+                        '0', 'V'
+                    ]
+                },
+
+        hooks: {
+            // hook for handling escape key
+            // Must return true to consume ESC, false otherwise.
+            escape: function () {
+                // Must return true to consume ESC, false otherwise.
+                return sts.stopDisplay();
+            },
+            mouseover: function (m) {
+                // m has id, class, and type properties
+                $log.debug('mouseover:', m);
+                sts.updateDisplay(m);
+            },
+            mouseout: function () {
+                $log.debug('mouseout');
+                sts.updateDisplay();
+            }
+        }
+    };
+
+    function openTraceInfoDialog() {
+        ds.openDialog(traceInfoDialogId, traceInfoDialogOpt)
+            .setTitle('Flow Trace Information')
+            .addContent(createTraceInfoDiv(traceSrc, traceDst))
+            .addOk(flowTraceResultBtn, 'Request')
+            .bindKeys();
+    }
+
+    function createTraceInfoDiv(src, dst) {
+        var texts = ds.createDiv('traceInfo');
+        texts.append('hr');
+        texts.append('table').append('tbody').append('tr');
+
+        var tBodySelection = texts.select('table').select('tbody').select('tr');
+
+        tBodySelection.append('td').text('Source IP:').attr("class", "label");
+        tBodySelection.append('td').text(src).attr("class", "value");
+
+        texts.select('table').select('tbody').append('tr');
+
+        tBodySelection = texts.select('table').select('tbody').select('tr:nth-child(2)');
+
+        tBodySelection.append('td').text('Destination IP:').attr("class", "label");
+        if (dst == src) {
+            tBodySelection.append('td').text('toGateway').attr("class", "value");
+        } else {
+            tBodySelection.append('td').text(dst).attr("class", "value");
+        }
+
+        texts.append('hr');
+
+        return texts;
+
+    }
+
+    function flowTraceResultBtn() {
+        sts.sendFlowTraceRequest(traceSrc, traceDst);
+        ds.closeDialog();
+        traceSrc = null;
+        traceDst = null;
+        flash.flash('Send Flow Trace Request');
+    }
+
+    function buttonCallback(x) {
+        $log.debug('Toolbar-button callback', x);
+    }
+
+    // invoke code to register with the overlay service
+    angular.module('ovSonaTopov')
+        .run(['$log', 'TopoOverlayService', 'SonaTopovService',
+                'FlashService', 'DialogService', 'WebSocketService',
+
+        function (_$log_, _tov_, _sts_, _flash_, _ds_, _wss_) {
+            $log = _$log_;
+            tov = _tov_;
+            sts = _sts_;
+            flash = _flash_;
+            ds = _ds_;
+            wss = _wss_;
+            tov.register(overlay);
+        }]);
+
+}());
diff --git a/apps/openstacknetworkingui/src/main/resources/app/view/sonaTopov/sonaTopovService.js b/apps/openstacknetworkingui/src/main/resources/app/view/sonaTopov/sonaTopovService.js
new file mode 100644
index 0000000..a9bbf69
--- /dev/null
+++ b/apps/openstacknetworkingui/src/main/resources/app/view/sonaTopov/sonaTopovService.js
@@ -0,0 +1,198 @@
+/*
+ * 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.
+ */
+
+/*
+ OpenStack Networking UI Service
+
+  Provides a mechanism to highlight hosts, devices and links according to
+  a virtual network. Also provides trace functionality to prove that
+  flow rules for the specific vm are installed appropriately.
+ */
+
+(function () {
+    'use strict';
+
+    // injected refs
+    var $log, fs, flash, wss, ds;
+
+    // constants
+    var displayStart = 'openstackNetworkingUiStart',
+        displayUpdate = 'openstackNetworkingUiUpdate',
+        displayStop = 'openstackNetworkingUiStop',
+        flowTraceRequest = 'flowTraceRequest';
+
+    // internal state
+    var currentMode = null;
+
+    // === ---------------------------
+    // === Helper functions
+
+    function sendDisplayStart(mode) {
+        wss.sendEvent(displayStart, {
+            mode: mode
+        });
+    }
+
+    function sendDisplayUpdate(what) {
+        wss.sendEvent(displayUpdate, {
+            id: what ? what.id : ''
+        });
+    }
+
+    function sendDisplayStop() {
+        wss.sendEvent(displayStop);
+    }
+
+    function sendFlowTraceRequest(src, dst) {
+        wss.sendEvent(flowTraceRequest, {
+            srcIp: src,
+            dstIp: dst
+        });
+        flash.flash('sendFlowTraceRequest called');
+    }
+
+    // === ---------------------------
+    // === Main API functions
+
+    function startDisplay(mode) {
+        if (currentMode === mode) {
+            $log.debug('(in mode', mode, 'already)');
+        } else {
+            currentMode = mode;
+            sendDisplayStart(mode);
+
+            flash.flash('Starting Openstack Networking UI mode');
+        }
+    }
+
+    function updateDisplay(m) {
+        if (currentMode) {
+            sendDisplayUpdate(m);
+        }
+    }
+
+    function stopDisplay() {
+        if (currentMode) {
+            currentMode = null;
+            sendDisplayStop();
+            flash.flash('Canceling Openstack Networking UI Overlay mode');
+            return true;
+        }
+        return false;
+    }
+
+
+    function dOk() {
+        ds.closeDialog();
+    }
+    function openFlowTraceResultDialog(data) {
+        var flowTraceResultDialogId = 'flowTraceResultDialogId',
+            flowTraceResultDialogOpt = {
+                width: 650,
+                edge: 'left',
+                margin: 20,
+                hideMargin: -20
+            }
+        var traceSuccess = data.trace_success == true ? "SUCCESS" : "FALSE";
+        ds.openDialog(flowTraceResultDialogId, flowTraceResultDialogOpt)
+                    .setTitle('Flow Trace Result: ' + traceSuccess)
+                    .addContent(createTraceResultInfoDiv(data))
+                    .addOk(dOk, 'Close')
+                    .bindKeys();
+    }
+
+    function createTraceResultInfoDiv(data) {
+        var texts = ds.createDiv('flowTraceResult');
+
+        texts.append('div').attr("class", "table-header");
+        texts.append('div').attr("class", "table-body");
+
+        texts.select('.table-header').append('table').append('tbody').append('tr');
+        texts.select('.table-body').append('table').append('tbody');
+
+
+        var theaderSelection = texts.select('.table-header')
+            .select('table').select('tbody').select('tr');
+
+        theaderSelection.append('td').text('Node');
+        theaderSelection.append('td').text('Table Id');
+        theaderSelection.append('td').text('Priority');
+        theaderSelection.append('td').text('Selector');
+        theaderSelection.append('td').text('Action');
+
+        var tbodySelection = texts.select('.table-body').select('table').select('tbody');
+        var rowNum = 1;
+
+        data.trace_result.forEach(function(result) {
+            result.flow_rules.forEach(function(flowRule) {
+                tbodySelection.append('tr');
+                var tbodyTrSelection = tbodySelection.select('tr:nth-child(' + rowNum + ')');
+                tbodyTrSelection.append('td').text(result.trace_node_name);
+                tbodyTrSelection.append('td').text(flowRule.table);
+                tbodyTrSelection.append('td').text(flowRule.priority);
+                tbodyTrSelection.append('td').text(jsonToSring(flowRule.selector));
+                tbodyTrSelection.append('td').text(jsonToSring(flowRule.actions));
+                if (jsonToSring(flowRule.actions).includes("drop")) {
+                    tbodyTrSelection.attr("class", "drop");
+                }
+                rowNum++;
+            });
+
+        });
+
+        return texts;
+    }
+
+    function jsonToSring(jsonData) {
+        var result = [];
+        for (var key in jsonData) {
+            result.push(key + ':' + jsonData[key]);
+        }
+
+        return result.join('/');
+
+    }
+
+    function flowTraceResult(data) {
+        flash.flash('flowTraceResult called');
+        $log.debug(data);
+
+        openFlowTraceResultDialog(data)
+    }
+
+    // === ---------------------------
+    // === Module Factory Definition
+
+    angular.module('ovSonaTopov', [])
+        .factory('SonaTopovService',
+        ['$log', 'FnService', 'FlashService', 'WebSocketService', 'DialogService',
+
+        function (_$log_, _fs_, _flash_, _wss_, _ds_) {
+            $log = _$log_;
+            fs = _fs_;
+            flash = _flash_;
+            wss = _wss_;
+            ds = _ds_;
+
+            return {
+                startDisplay: startDisplay,
+                updateDisplay: updateDisplay,
+                stopDisplay: stopDisplay,
+                flowTraceResult: flowTraceResult,
+                sendFlowTraceRequest: sendFlowTraceRequest,
+            };
+        }]);
+}());
diff --git a/apps/openstacknetworkingui/src/main/resources/sonaTopov/css.html b/apps/openstacknetworkingui/src/main/resources/sonaTopov/css.html
new file mode 100644
index 0000000..a2e04f4
--- /dev/null
+++ b/apps/openstacknetworkingui/src/main/resources/sonaTopov/css.html
@@ -0,0 +1 @@
+<link rel="stylesheet" href="app/view/sonaTopov/sonaTopov.css">
\ No newline at end of file
diff --git a/apps/openstacknetworkingui/src/main/resources/sonaTopov/js.html b/apps/openstacknetworkingui/src/main/resources/sonaTopov/js.html
new file mode 100644
index 0000000..72026ff
--- /dev/null
+++ b/apps/openstacknetworkingui/src/main/resources/sonaTopov/js.html
@@ -0,0 +1,2 @@
+<script src="app/view/sonaTopov/sonaTopovService.js"></script>
+<script src="app/view/sonaTopov/sonaTopovOverlay.js"></script>
\ No newline at end of file
diff --git a/apps/openstacknetworkingui/src/main/webapp/WEB-INF/web.xml b/apps/openstacknetworkingui/src/main/webapp/WEB-INF/web.xml
new file mode 100644
index 0000000..616ad86
--- /dev/null
+++ b/apps/openstacknetworkingui/src/main/webapp/WEB-INF/web.xml
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Copyright 2016-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.
+  -->
+<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee"
+         xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
+         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
+         id="ONOS" version="2.5">
+    <display-name>SONA GUI REST API v1.0</display-name>
+
+    <servlet>
+        <servlet-name>JAX-RS Service</servlet-name>
+        <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
+        <init-param>
+            <param-name>jersey.config.server.provider.classnames</param-name>
+            <param-value>
+                org.onosproject.openstacknetworkingui.web.FlowTraceWebResource
+            </param-value>
+        </init-param>
+        <load-on-startup>1</load-on-startup>
+    </servlet>
+
+    <servlet-mapping>
+        <servlet-name>JAX-RS Service</servlet-name>
+        <url-pattern>/*</url-pattern>
+    </servlet-mapping>
+</web-app>
diff --git a/apps/pom.xml b/apps/pom.xml
index b43c0db..26deeee 100644
--- a/apps/pom.xml
+++ b/apps/pom.xml
@@ -96,6 +96,7 @@
         <module>route-service</module>
         <module>evpn-route-service</module>
         <module>l3vpn</module>
+        <module>openstacknetworkingui</module>
     </modules>
 
     <properties>