diff --git a/web/gui/src/main/java/org/onlab/onos/gui/TopologyViewIntentFilter.java b/web/gui/src/main/java/org/onlab/onos/gui/TopologyViewIntentFilter.java
new file mode 100644
index 0000000..0f9a29b
--- /dev/null
+++ b/web/gui/src/main/java/org/onlab/onos/gui/TopologyViewIntentFilter.java
@@ -0,0 +1,250 @@
+/*
+ * Copyright 2014 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.onlab.onos.gui;
+
+import org.onlab.onos.net.ConnectPoint;
+import org.onlab.onos.net.Device;
+import org.onlab.onos.net.DeviceId;
+import org.onlab.onos.net.Host;
+import org.onlab.onos.net.HostId;
+import org.onlab.onos.net.Link;
+import org.onlab.onos.net.device.DeviceService;
+import org.onlab.onos.net.host.HostService;
+import org.onlab.onos.net.intent.HostToHostIntent;
+import org.onlab.onos.net.intent.Intent;
+import org.onlab.onos.net.intent.IntentService;
+import org.onlab.onos.net.intent.LinkCollectionIntent;
+import org.onlab.onos.net.intent.MultiPointToSinglePointIntent;
+import org.onlab.onos.net.intent.OpticalConnectivityIntent;
+import org.onlab.onos.net.intent.PathIntent;
+import org.onlab.onos.net.intent.PointToPointIntent;
+import org.onlab.onos.net.link.LinkService;
+
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import static org.onlab.onos.net.intent.IntentState.INSTALLED;
+
+/**
+ * Auxiliary facility to query the intent service based on the specified
+ * set of end-station hosts, edge points or infrastructure devices.
+ */
+public class TopologyViewIntentFilter {
+
+    private final IntentService intentService;
+    private final DeviceService deviceService;
+    private final HostService hostService;
+    private final LinkService linkService;
+
+    /**
+     * Crreates an intent filter.
+     *
+     * @param intentService intent service reference
+     * @param deviceService device service reference
+     * @param hostService   host service reference
+     * @param linkService   link service reference
+     */
+    TopologyViewIntentFilter(IntentService intentService,
+                             DeviceService deviceService,
+                             HostService hostService, LinkService linkService) {
+        this.intentService = intentService;
+        this.deviceService = deviceService;
+        this.hostService = hostService;
+        this.linkService = linkService;
+    }
+
+    /**
+     * Finds all path (host-to-host or point-to-point) intents that pertains
+     * to the given hosts.
+     *
+     * @param hosts   set of hosts to query by
+     * @param devices set of devices to query by
+     * @return set of intents that 'match' all hosts and devices given
+     */
+    Set<Intent> findPathIntents(Set<Host> hosts, Set<Device> devices) {
+        // Derive from this the set of edge connect points.
+        Set<ConnectPoint> edgePoints = getEdgePoints(hosts);
+
+        // Iterate over all intents and produce a set that contains only those
+        // intents that target all selected hosts or derived edge connect points.
+        return getIntents(hosts, devices, edgePoints);
+    }
+
+
+    // Produces a set of edge points from the specified set of hosts.
+    private Set<ConnectPoint> getEdgePoints(Set<Host> hosts) {
+        Set<ConnectPoint> edgePoints = new HashSet<>();
+        for (Host host : hosts) {
+            edgePoints.add(host.location());
+        }
+        return edgePoints;
+    }
+
+    // Produces a set of intents that target all selected hosts, devices or connect points.
+    private Set<Intent> getIntents(Set<Host> hosts, Set<Device> devices,
+                                   Set<ConnectPoint> edgePoints) {
+        Set<Intent> intents = new HashSet<>();
+        if (hosts.isEmpty() && devices.isEmpty()) {
+            return intents;
+        }
+
+        Set<OpticalConnectivityIntent> opticalIntents = new HashSet<>();
+
+        // Search through all intents and see if they are relevant to our search.
+        for (Intent intent : intentService.getIntents()) {
+            if (intentService.getIntentState(intent.id()) == INSTALLED) {
+                boolean isRelevant = false;
+                if (intent instanceof HostToHostIntent) {
+                    isRelevant = isIntentRelevantToHosts((HostToHostIntent) intent, hosts) &&
+                            isIntentRelevantToDevices(intent, devices);
+                } else if (intent instanceof PointToPointIntent) {
+                    isRelevant = isIntentRelevant((PointToPointIntent) intent, edgePoints) &&
+                            isIntentRelevantToDevices(intent, devices);
+                } else if (intent instanceof MultiPointToSinglePointIntent) {
+                    isRelevant = isIntentRelevant((MultiPointToSinglePointIntent) intent, edgePoints) &&
+                            isIntentRelevantToDevices(intent, devices);
+                } else if (intent instanceof OpticalConnectivityIntent) {
+                    opticalIntents.add((OpticalConnectivityIntent) intent);
+                }
+                // TODO: add other intents, e.g. SinglePointToMultiPointIntent
+
+                if (isRelevant) {
+                    intents.add(intent);
+                }
+            }
+        }
+
+        // As a second pass, try to link up any optical intents with the
+        // packet-level ones.
+        for (OpticalConnectivityIntent intent : opticalIntents) {
+            if (isIntentRelevant(intent, intents) &&
+                    isIntentRelevantToDevices(intent, devices)) {
+                intents.add(intent);
+            }
+        }
+        return intents;
+    }
+
+    // Indicates whether the specified intent involves all of the given hosts.
+    private boolean isIntentRelevantToHosts(HostToHostIntent intent, Set<Host> hosts) {
+        for (Host host : hosts) {
+            HostId id = host.id();
+            // Bail if intent does not involve this host.
+            if (!id.equals(intent.one()) && !id.equals(intent.two())) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    // Indicates whether the specified intent involves all of the given devices.
+    private boolean isIntentRelevantToDevices(Intent intent, Set<Device> devices) {
+        List<Intent> installables = intentService.getInstallableIntents(intent.id());
+        for (Device device : devices) {
+            if (!isIntentRelevantToDevice(installables, device)) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    // Indicates whether the specified intent involves the given device.
+    private boolean isIntentRelevantToDevice(List<Intent> installables, Device device) {
+        for (Intent installable : installables) {
+            if (installable instanceof PathIntent) {
+                PathIntent pathIntent = (PathIntent) installable;
+                if (pathContainsDevice(pathIntent.path().links(), device.id())) {
+                    return true;
+                }
+            } else if (installable instanceof LinkCollectionIntent) {
+                LinkCollectionIntent linksIntent = (LinkCollectionIntent) installable;
+                if (pathContainsDevice(linksIntent.links(), device.id())) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+
+    // Indicates whether the specified intent involves the given device.
+    private boolean pathContainsDevice(Iterable<Link> links, DeviceId id) {
+        for (Link link : links) {
+            if (link.src().elementId().equals(id) || link.dst().elementId().equals(id)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    private boolean isIntentRelevant(PointToPointIntent intent, Set<ConnectPoint> edgePoints) {
+        for (ConnectPoint point : edgePoints) {
+            // Bail if intent does not involve this edge point.
+            if (!point.equals(intent.egressPoint()) &&
+                    !point.equals(intent.ingressPoint())) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    // Indicates whether the specified intent involves all of the given edge points.
+    private boolean isIntentRelevant(MultiPointToSinglePointIntent intent,
+                                     Set<ConnectPoint> edgePoints) {
+        for (ConnectPoint point : edgePoints) {
+            // Bail if intent does not involve this edge point.
+            if (!point.equals(intent.egressPoint()) &&
+                    !intent.ingressPoints().contains(point)) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    // Indicates whether the specified intent involves all of the given edge points.
+    private boolean isIntentRelevant(OpticalConnectivityIntent opticalIntent,
+                                     Set<Intent> intents) {
+        Link ccSrc = getFirstLink(opticalIntent.getSrc(), false);
+        Link ccDst = getFirstLink(opticalIntent.getDst(), true);
+
+        for (Intent intent : intents) {
+            List<Intent> installables = intentService.getInstallableIntents(intent.id());
+            for (Intent installable : installables) {
+                if (installable instanceof PathIntent) {
+                    List<Link> links = ((PathIntent) installable).path().links();
+                    if (links.size() == 3) {
+                        Link tunnel = links.get(1);
+                        if (tunnel.src().equals(ccSrc.src()) &&
+                                tunnel.dst().equals(ccDst.dst())) {
+                            return true;
+                        }
+                    }
+                }
+            }
+        }
+        return false;
+    }
+
+    private Link getFirstLink(ConnectPoint point, boolean ingress) {
+        for (Link link : linkService.getLinks(point)) {
+            if (point.equals(ingress ? link.src() : link.dst())) {
+                return link;
+            }
+        }
+        return null;
+    }
+
+}
diff --git a/web/gui/src/main/java/org/onlab/onos/gui/TopologyViewMessages.java b/web/gui/src/main/java/org/onlab/onos/gui/TopologyViewMessages.java
index e99749e..3084c5f 100644
--- a/web/gui/src/main/java/org/onlab/onos/gui/TopologyViewMessages.java
+++ b/web/gui/src/main/java/org/onlab/onos/gui/TopologyViewMessages.java
@@ -35,7 +35,6 @@
 import org.onlab.onos.net.HostId;
 import org.onlab.onos.net.HostLocation;
 import org.onlab.onos.net.Link;
-import org.onlab.onos.net.Path;
 import org.onlab.onos.net.device.DeviceEvent;
 import org.onlab.onos.net.device.DeviceService;
 import org.onlab.onos.net.host.HostEvent;
@@ -57,6 +56,7 @@
 import org.slf4j.LoggerFactory;
 
 import java.text.DecimalFormat;
+import java.util.HashSet;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
@@ -68,6 +68,8 @@
 import static org.onlab.onos.cluster.ClusterEvent.Type.INSTANCE_ADDED;
 import static org.onlab.onos.cluster.ClusterEvent.Type.INSTANCE_REMOVED;
 import static org.onlab.onos.cluster.ControllerNode.State.ACTIVE;
+import static org.onlab.onos.net.DeviceId.deviceId;
+import static org.onlab.onos.net.HostId.hostId;
 import static org.onlab.onos.net.PortNumber.portNumber;
 import static org.onlab.onos.net.device.DeviceEvent.Type.DEVICE_ADDED;
 import static org.onlab.onos.net.device.DeviceEvent.Type.DEVICE_REMOVED;
@@ -95,6 +97,8 @@
     private static final String KB_UNIT = "KB";
     private static final String B_UNIT = "B";
 
+    private static final String ANIMATED = "animated";
+
     protected final ServiceDirectory directory;
     protected final ClusterService clusterService;
     protected final DeviceService deviceService;
@@ -196,6 +200,64 @@
         return event;
     }
 
+    // Produces a set of all hosts listed in the specified JSON array.
+    protected Set<Host> getHosts(ArrayNode array) {
+        Set<Host> hosts = new HashSet<>();
+        if (array != null) {
+            for (JsonNode node : array) {
+                try {
+                    addHost(hosts, hostId(node.asText()));
+                } catch (IllegalArgumentException e) {
+                    log.debug("Skipping ID {}", node.asText());
+                }
+            }
+        }
+        return hosts;
+    }
+
+    // Adds the specified host to the set of hosts.
+    private void addHost(Set<Host> hosts, HostId hostId) {
+        Host host = hostService.getHost(hostId);
+        if (host != null) {
+            hosts.add(host);
+        }
+    }
+
+
+    // Produces a set of all devices listed in the specified JSON array.
+    protected Set<Device> getDevices(ArrayNode array) {
+        Set<Device> devices = new HashSet<>();
+        if (array != null) {
+            for (JsonNode node : array) {
+                try {
+                    addDevice(devices, deviceId(node.asText()));
+                } catch (IllegalArgumentException e) {
+                    log.debug("Skipping ID {}", node.asText());
+                }
+            }
+        }
+        return devices;
+    }
+
+    private void addDevice(Set<Device> devices, DeviceId deviceId) {
+        Device device = deviceService.getDevice(deviceId);
+        if (device != null) {
+            devices.add(device);
+        }
+    }
+
+    protected void addHover(Set<Host> hosts, Set<Device> devices, String hover) {
+        try {
+            addHost(hosts, hostId(hover));
+        } catch (IllegalArgumentException e) {
+            try {
+                addDevice(devices, deviceId(hover));
+            } catch (IllegalArgumentException ne) {
+                log.debug("Skipping ID {}", hover);
+            }
+        }
+    }
+
     // Produces a cluster instance message to the client.
     protected ObjectNode instanceMessage(ClusterEvent event) {
         ControllerNode node = event.subject();
@@ -382,16 +444,18 @@
                              new Prop("Longitude", annot.value("longitude"))));
     }
 
-    // Produces a path payload to the client.
-    protected ObjectNode pathMessage(Path path, String type) {
-        ObjectNode payload = mapper.createObjectNode();
-        ArrayNode links = mapper.createArrayNode();
-        for (Link link : path.links()) {
-            links.add(compactLinkString(link));
-        }
 
-        payload.put("type", type).set("links", links);
-        return payload;
+    // Produces JSON message to trigger traffic overview visualization
+    protected ObjectNode trafficSummaryMessage(long sid) {
+        ObjectNode payload = mapper.createObjectNode();
+        ArrayNode paths = mapper.createArrayNode();
+        payload.set("paths", paths);
+        for (Link link : linkService.getLinks()) {
+            Set<Link> links = new HashSet<>();
+            links.add(link);
+            addPathTraffic(paths, "plain", "secondary", links);
+        }
+        return envelope("showTraffic", sid, payload);
     }
 
 
@@ -409,11 +473,14 @@
                     for (Intent installable : installables) {
                         String cls = isOptical ? trafficClass.type + " optical" : trafficClass.type;
                         if (installable instanceof PathIntent) {
-                            addPathTraffic(paths, cls, ((PathIntent) installable).path().links());
+                            addPathTraffic(paths, cls, ANIMATED,
+                                           ((PathIntent) installable).path().links());
                         } else if (installable instanceof LinkCollectionIntent) {
-                            addPathTraffic(paths, cls, ((LinkCollectionIntent) installable).links());
+                            addPathTraffic(paths, cls, ANIMATED,
+                                           ((LinkCollectionIntent) installable).links());
                         } else if (installable instanceof OpticalPathIntent) {
-                            addPathTraffic(paths, cls, ((OpticalPathIntent) installable).path().links());
+                            addPathTraffic(paths, cls, ANIMATED,
+                                           ((OpticalPathIntent) installable).path().links());
                         }
 
                     }
@@ -426,7 +493,8 @@
 
     // Adds the link segments (path or tree) associated with the specified
     // connectivity intent
-    protected void addPathTraffic(ArrayNode paths, String type, Iterable<Link> links) {
+    protected void addPathTraffic(ArrayNode paths, String type, String trafficType,
+                                  Iterable<Link> links) {
         ObjectNode pathNode = mapper.createObjectNode();
         ArrayNode linksNode = mapper.createArrayNode();
 
@@ -445,7 +513,7 @@
                     labels.add(label);
                 }
             }
-            pathNode.put("class", hasTraffic ? type + " animated" : type);
+            pathNode.put("class", hasTraffic ? type + " " + trafficType : type);
             pathNode.put("traffic", hasTraffic);
             pathNode.set("links", linksNode);
             pathNode.set("labels", labels);
diff --git a/web/gui/src/main/java/org/onlab/onos/gui/TopologyViewWebSocket.java b/web/gui/src/main/java/org/onlab/onos/gui/TopologyViewWebSocket.java
index 935ba79..99e9aeb 100644
--- a/web/gui/src/main/java/org/onlab/onos/gui/TopologyViewWebSocket.java
+++ b/web/gui/src/main/java/org/onlab/onos/gui/TopologyViewWebSocket.java
@@ -15,7 +15,6 @@
  */
 package org.onlab.onos.gui;
 
-import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.node.ArrayNode;
 import com.fasterxml.jackson.databind.node.ObjectNode;
 import org.eclipse.jetty.websocket.WebSocket;
@@ -24,7 +23,6 @@
 import org.onlab.onos.cluster.ControllerNode;
 import org.onlab.onos.core.ApplicationId;
 import org.onlab.onos.core.CoreService;
-import org.onlab.onos.net.ConnectPoint;
 import org.onlab.onos.net.Device;
 import org.onlab.onos.net.Host;
 import org.onlab.onos.net.HostId;
@@ -39,17 +37,11 @@
 import org.onlab.onos.net.intent.Intent;
 import org.onlab.onos.net.intent.IntentEvent;
 import org.onlab.onos.net.intent.IntentListener;
-import org.onlab.onos.net.intent.MultiPointToSinglePointIntent;
-import org.onlab.onos.net.intent.OpticalConnectivityIntent;
-import org.onlab.onos.net.intent.PathIntent;
-import org.onlab.onos.net.intent.PointToPointIntent;
 import org.onlab.onos.net.link.LinkEvent;
 import org.onlab.onos.net.link.LinkListener;
 import org.onlab.osgi.ServiceDirectory;
 
 import java.io.IOException;
-import java.util.HashSet;
-import java.util.List;
 import java.util.Set;
 import java.util.Timer;
 import java.util.TimerTask;
@@ -60,7 +52,6 @@
 import static org.onlab.onos.net.HostId.hostId;
 import static org.onlab.onos.net.device.DeviceEvent.Type.DEVICE_ADDED;
 import static org.onlab.onos.net.host.HostEvent.Type.HOST_ADDED;
-import static org.onlab.onos.net.intent.IntentState.INSTALLED;
 import static org.onlab.onos.net.link.LinkEvent.Type.LINK_ADDED;
 
 /**
@@ -99,6 +90,8 @@
     private long lastActive = System.currentTimeMillis();
     private boolean listenersRemoved = false;
 
+    private TopologyViewIntentFilter intentFilter;
+
     /**
      * Creates a new web-socket for serving data to GUI topology view.
      *
@@ -106,6 +99,9 @@
      */
     public TopologyViewWebSocket(ServiceDirectory directory) {
         super(directory);
+
+        intentFilter = new TopologyViewIntentFilter(intentService, deviceService,
+                                                   hostService, linkService);
         appId = directory.get(CoreService.class).registerApplication(APP_ID);
     }
 
@@ -168,24 +164,30 @@
     public void onMessage(String data) {
         lastActive = System.currentTimeMillis();
         try {
-            ObjectNode event = (ObjectNode) mapper.reader().readTree(data);
-            String type = string(event, "event", "unknown");
-            if (type.equals("requestDetails")) {
-                requestDetails(event);
-            } else if (type.equals("updateMeta")) {
-                updateMetaUi(event);
-            } else if (type.equals("addHostIntent")) {
-                createHostIntent(event);
-            } else if (type.equals("requestTraffic")) {
-                requestTraffic(event);
-            } else if (type.equals("cancelTraffic")) {
-                cancelTraffic(event);
-            }
+            processMessage((ObjectNode) mapper.reader().readTree(data));
         } catch (Exception e) {
             log.warn("Unable to parse GUI request {} due to {}", data, e);
         }
     }
 
+    // Processes the specified event.
+    private void processMessage(ObjectNode event) {
+        String type = string(event, "event", "unknown");
+        if (type.equals("requestDetails")) {
+            requestDetails(event);
+        } else if (type.equals("updateMeta")) {
+            updateMetaUi(event);
+        } else if (type.equals("addHostIntent")) {
+            createHostIntent(event);
+        } else if (type.equals("requestTraffic")) {
+            requestTraffic(event);
+        } else if (type.equals("requestAllTraffic")) {
+            requestAllTraffic(event);
+        } else if (type.equals("cancelTraffic")) {
+            cancelTraffic(event);
+        }
+    }
+
     // Sends the specified data to the client.
     private synchronized void sendMessage(ObjectNode data) {
         try {
@@ -253,22 +255,36 @@
         intentService.submit(hostIntent);
     }
 
-    // Sends traffic message.
+    // Subscribes for host traffic messages.
+    private synchronized void requestAllTraffic(ObjectNode event) {
+        ObjectNode payload = payload(event);
+        long sid = number(event, "sid");
+        monitorRequest = event;
+        sendMessage(trafficSummaryMessage(sid));
+    }
+
+    // Subscribes for host traffic messages.
     private synchronized void requestTraffic(ObjectNode event) {
         ObjectNode payload = payload(event);
+        if (!payload.has("ids")) {
+            return;
+        }
+
         long sid = number(event, "sid");
         monitorRequest = event;
 
         // Get the set of selected hosts and their intents.
-        Set<Host> hosts = getHosts((ArrayNode) payload.path("ids"));
-        Set<Intent> intents = findPathIntents(hosts);
+        ArrayNode ids = (ArrayNode) payload.path("ids");
+        Set<Host> hosts = getHosts(ids);
+        Set<Device> devices = getDevices(ids);
+        Set<Intent> intents = intentFilter.findPathIntents(hosts, devices);
 
         // If there is a hover node, include it in the hosts and find intents.
         String hover = string(payload, "hover");
         Set<Intent> hoverIntents;
         if (!isNullOrEmpty(hover)) {
-            addHost(hosts, hostId(hover));
-            hoverIntents = findPathIntents(hosts);
+            addHover(hosts, devices, hover);
+            hoverIntents = intentFilter.findPathIntents(hosts, devices);
             intents.removeAll(hoverIntents);
 
             // Send an initial message to highlight all links of all monitored intents.
@@ -288,157 +304,6 @@
         monitorRequest = null;
     }
 
-    // Finds all path (host-to-host or point-to-point) intents that pertains
-    // to the given hosts.
-    private Set<Intent> findPathIntents(Set<Host> hosts) {
-        // Derive from this the set of edge connect points.
-        Set<ConnectPoint> edgePoints = getEdgePoints(hosts);
-
-        // Iterate over all intents and produce a set that contains only those
-        // intents that target all selected hosts or derived edge connect points.
-        return getIntents(hosts, edgePoints);
-    }
-
-    // Produces a set of intents that target all selected hosts or connect points.
-    private Set<Intent> getIntents(Set<Host> hosts, Set<ConnectPoint> edgePoints) {
-        Set<Intent> intents = new HashSet<>();
-        if (hosts.isEmpty()) {
-            return intents;
-        }
-
-        Set<OpticalConnectivityIntent> opticalIntents = new HashSet<>();
-
-        for (Intent intent : intentService.getIntents()) {
-            if (intentService.getIntentState(intent.id()) == INSTALLED) {
-                boolean isRelevant = false;
-                if (intent instanceof HostToHostIntent) {
-                    isRelevant = isIntentRelevant((HostToHostIntent) intent, hosts);
-                } else if (intent instanceof PointToPointIntent) {
-                    isRelevant = isIntentRelevant((PointToPointIntent) intent, edgePoints);
-                } else if (intent instanceof MultiPointToSinglePointIntent) {
-                    isRelevant = isIntentRelevant((MultiPointToSinglePointIntent) intent, edgePoints);
-                } else if (intent instanceof OpticalConnectivityIntent) {
-                    opticalIntents.add((OpticalConnectivityIntent) intent);
-                }
-                // TODO: add other intents, e.g. SinglePointToMultiPointIntent
-
-                if (isRelevant) {
-                    intents.add(intent);
-                }
-            }
-        }
-
-        for (OpticalConnectivityIntent intent : opticalIntents) {
-            if (isIntentRelevant(intent, intents)) {
-                intents.add(intent);
-            }
-        }
-        return intents;
-    }
-
-    // Indicates whether the specified intent involves all of the given hosts.
-    private boolean isIntentRelevant(HostToHostIntent intent, Set<Host> hosts) {
-        for (Host host : hosts) {
-            HostId id = host.id();
-            // Bail if intent does not involve this host.
-            if (!id.equals(intent.one()) && !id.equals(intent.two())) {
-                return false;
-            }
-        }
-        return true;
-    }
-
-    // Indicates whether the specified intent involves all of the given edge points.
-    private boolean isIntentRelevant(PointToPointIntent intent,
-                                     Set<ConnectPoint> edgePoints) {
-        for (ConnectPoint point : edgePoints) {
-            // Bail if intent does not involve this edge point.
-            if (!point.equals(intent.egressPoint()) &&
-                    !point.equals(intent.ingressPoint())) {
-                return false;
-            }
-        }
-        return true;
-    }
-
-    // Indicates whether the specified intent involves all of the given edge points.
-    private boolean isIntentRelevant(MultiPointToSinglePointIntent intent,
-                                     Set<ConnectPoint> edgePoints) {
-        for (ConnectPoint point : edgePoints) {
-            // Bail if intent does not involve this edge point.
-            if (!point.equals(intent.egressPoint()) &&
-                    !intent.ingressPoints().contains(point)) {
-                return false;
-            }
-        }
-        return true;
-    }
-
-    // Indicates whether the specified intent involves all of the given edge points.
-    private boolean isIntentRelevant(OpticalConnectivityIntent opticalIntent,
-                                     Set<Intent> intents) {
-        Link ccSrc = getFirstLink(opticalIntent.getSrc(), false);
-        Link ccDst = getFirstLink(opticalIntent.getDst(), true);
-
-        for (Intent intent : intents) {
-            List<Intent> installables = intentService.getInstallableIntents(intent.id());
-            for (Intent installable : installables) {
-                if (installable instanceof PathIntent) {
-                    List<Link> links = ((PathIntent) installable).path().links();
-                    if (links.size() == 3) {
-                        Link tunnel = links.get(1);
-                        if (tunnel.src().equals(ccSrc.src()) &&
-                                tunnel.dst().equals(ccDst.dst())) {
-                            return true;
-                        }
-                    }
-                }
-            }
-        }
-        return false;
-    }
-
-    private Link getFirstLink(ConnectPoint point, boolean ingress) {
-        for (Link link : linkService.getLinks(point)) {
-            if (point.equals(ingress ? link.src() : link.dst())) {
-                return link;
-            }
-        }
-        return null;
-    }
-
-    // Produces a set of all host ids listed in the specified JSON array.
-    private Set<Host> getHosts(ArrayNode array) {
-        Set<Host> hosts = new HashSet<>();
-        if (array != null) {
-            for (JsonNode node : array) {
-                try {
-                    addHost(hosts, hostId(node.asText()));
-                } catch (IllegalArgumentException e) {
-                    log.debug("Skipping ID {}", node.asText());
-                }
-            }
-        }
-        return hosts;
-    }
-
-    private void addHost(Set<Host> hosts, HostId hostId) {
-        Host host = hostService.getHost(hostId);
-        if (host != null) {
-            hosts.add(host);
-        }
-    }
-
-    // Produces a set of edge points from the specified set of hosts.
-    private Set<ConnectPoint> getEdgePoints(Set<Host> hosts) {
-        Set<ConnectPoint> edgePoints = new HashSet<>();
-        for (Host host : hosts) {
-            edgePoints.add(host.location());
-        }
-        return edgePoints;
-    }
-
-
     // Adds all internal listeners.
     private void addListeners() {
         clusterService.addListener(clusterListener);
@@ -506,7 +371,12 @@
         @Override
         public void run() {
             if (monitorRequest != null) {
-                requestTraffic(monitorRequest);
+                String type = string(monitorRequest, "event", "unknown");
+                if (type.equals("requestAllTraffic")) {
+                    requestAllTraffic(monitorRequest);
+                } else {
+                    requestTraffic(monitorRequest);
+                }
             }
         }
     }
diff --git a/web/gui/src/main/webapp/topo2.css b/web/gui/src/main/webapp/topo2.css
index 45377b1..0514a6f 100644
--- a/web/gui/src/main/webapp/topo2.css
+++ b/web/gui/src/main/webapp/topo2.css
@@ -135,28 +135,26 @@
     stroke-dasharray: 8 4;
 }
 
-#topo svg .link.primary {
-    stroke: #ffA300;
-    stroke-width: 4px;
-}
 #topo svg .link.secondary {
     stroke: rgba(0,153,51,0.5);
     stroke-width: 3px;
 }
+#topo svg .link.primary {
+    stroke: #ffA300;
+    stroke-width: 4px;
+}
 #topo svg .link.animated {
     stroke: #ffA300;
-    Xstroke-width: 6px;
-    Xstroke-dasharray: 8 8
 }
 
-#topo svg .link.primary.optical {
-    stroke: #74f;
-    stroke-width: 6px;
-}
 #topo svg .link.secondary.optical {
     stroke: rgba(128,64,255,0.5);
     stroke-width: 4px;
 }
+#topo svg .link.primary.optical {
+    stroke: #74f;
+    stroke-width: 6px;
+}
 #topo svg .link.animated.optical {
     stroke: #74f;
     stroke-width: 10px;
@@ -164,8 +162,6 @@
 }
 
 #topo svg .linkLabel rect {
-    Xstroke: #ccc;
-    Xstroke-width: 2px;
     fill: #eee;
     stroke: none;
 }
diff --git a/web/gui/src/main/webapp/topo2.js b/web/gui/src/main/webapp/topo2.js
index 2a36dfd..e9a8c1e 100644
--- a/web/gui/src/main/webapp/topo2.js
+++ b/web/gui/src/main/webapp/topo2.js
@@ -141,6 +141,8 @@
         U: unpin,
         R: resetZoomPan,
         H: toggleHover,
+        V: showTrafficAction,
+        A: showAllTrafficAction,
         esc: handleEscape
     };
 
@@ -832,8 +834,9 @@
         }
 
         // NOTE: hover is only populated if "show traffic on hover" is
-        //        toggled on, and the item hovered is a host...
-        var hoverId = (trafficHover() && hovered && hovered.class === 'host')
+        //        toggled on, and the item hovered is a host or a device...
+        var hoverId = (trafficHover() && hovered &&
+                (hovered.class === 'host' || hovered.class === 'device'))
                         ? hovered.id : '';
         sendMessage('requestTraffic', {
             ids: selectOrder,
@@ -841,6 +844,10 @@
         });
     }
 
+    function showAllTrafficAction() {
+        sendMessage('requestAllTraffic', {});
+    }
+
 
     // ==============================
     // onos instance panel functions
@@ -1367,14 +1374,14 @@
 
     function nodeMouseOver(d) {
         hovered = d;
-        if (trafficHover() && d.class === 'host') {
+        if (trafficHover() && (d.class === 'host' || d.class === 'device')) {
             showTrafficAction();
         }
     }
 
     function nodeMouseOut(d) {
         hovered = null;
-        if (trafficHover() && d.class === 'host') {
+        if (trafficHover() && (d.class === 'host' || d.class === 'device')) {
             showTrafficAction();
         }
     }