Added a summary command.
diff --git a/cli/src/main/java/org/onlab/onos/cli/SummaryCommand.java b/cli/src/main/java/org/onlab/onos/cli/SummaryCommand.java
new file mode 100644
index 0000000..592b737
--- /dev/null
+++ b/cli/src/main/java/org/onlab/onos/cli/SummaryCommand.java
@@ -0,0 +1,32 @@
+package org.onlab.onos.cli;
+
+import org.apache.karaf.shell.commands.Command;
+import org.onlab.onos.cluster.ClusterService;
+import org.onlab.onos.net.device.DeviceService;
+import org.onlab.onos.net.flow.FlowRuleService;
+import org.onlab.onos.net.host.HostService;
+import org.onlab.onos.net.intent.IntentService;
+import org.onlab.onos.net.link.LinkService;
+import org.onlab.onos.net.topology.TopologyService;
+
+/**
+ * Provides summary of ONOS model.
+ */
+@Command(scope = "onos", name = "summary",
+         description = "Provides summary of ONOS model")
+public class SummaryCommand extends AbstractShellCommand {
+
+    @Override
+    protected void execute() {
+        TopologyService topologyService = get(TopologyService.class);
+        print("nodes=%d, devices=%d, links=%d, hosts=%d, clusters=%s, flows=%d, intents=%d",
+              get(ClusterService.class).getNodes().size(),
+              get(DeviceService.class).getDeviceCount(),
+              get(LinkService.class).getLinkCount(),
+              get(HostService.class).getHostCount(),
+              topologyService.getClusters(topologyService.currentTopology()).size(),
+              get(FlowRuleService.class).getFlowRuleCount(),
+              get(IntentService.class).getIntentCount());
+    }
+
+}
diff --git a/cli/src/main/resources/OSGI-INF/blueprint/shell-config.xml b/cli/src/main/resources/OSGI-INF/blueprint/shell-config.xml
index 9ed8a47..96f974a 100644
--- a/cli/src/main/resources/OSGI-INF/blueprint/shell-config.xml
+++ b/cli/src/main/resources/OSGI-INF/blueprint/shell-config.xml
@@ -2,6 +2,9 @@
 
     <command-bundle xmlns="http://karaf.apache.org/xmlns/shell/v1.1.0">
         <command>
+            <action class="org.onlab.onos.cli.SummaryCommand"/>
+        </command>
+        <command>
             <action class="org.onlab.onos.cli.NodesListCommand"/>
         </command>
         <command>