diff --git a/net/api/src/main/java/org/onlab/onos/net/ElementId.java b/net/api/src/main/java/org/onlab/onos/net/ElementId.java
index 73e1f29..e205bb6 100644
--- a/net/api/src/main/java/org/onlab/onos/net/ElementId.java
+++ b/net/api/src/main/java/org/onlab/onos/net/ElementId.java
@@ -3,8 +3,6 @@
 import java.net.URI;
 import java.util.Objects;
 
-import static com.google.common.base.MoreObjects.toStringHelper;
-
 /**
  * Immutable representation of a network element identity.
  */
@@ -47,7 +45,7 @@
 
     @Override
     public String toString() {
-        return toStringHelper(this).add("uri", uri).toString();
+        return uri.toString();
     }
 
 }
diff --git a/net/api/src/main/java/org/onlab/onos/net/device/DeviceService.java b/net/api/src/main/java/org/onlab/onos/net/device/DeviceService.java
index 6c46627..8364935 100644
--- a/net/api/src/main/java/org/onlab/onos/net/device/DeviceService.java
+++ b/net/api/src/main/java/org/onlab/onos/net/device/DeviceService.java
@@ -55,13 +55,22 @@
 
     /**
      * Returns the port with the specified number and hosted by the given device.
-     * @param deviceId device identifier
+     *
+     * @param deviceId   device identifier
      * @param portNumber port number
      * @return device port
      */
     Port getPort(DeviceId deviceId, PortNumber portNumber);
 
     /**
+     * Indicates whether or not the device is presently online and available.
+     *
+     * @param deviceId device identifier
+     * @return true if the device is available
+     */
+    boolean isAvailable(DeviceId deviceId);
+
+    /**
      * Adds the specified device listener.
      *
      * @param listener device listener