Implement link resource request/allocation objects.
diff --git a/core/api/src/main/java/org/onlab/onos/net/resource/BandwidthResourceAllocation.java b/core/api/src/main/java/org/onlab/onos/net/resource/BandwidthResourceAllocation.java
index b542533..77db287 100644
--- a/core/api/src/main/java/org/onlab/onos/net/resource/BandwidthResourceAllocation.java
+++ b/core/api/src/main/java/org/onlab/onos/net/resource/BandwidthResourceAllocation.java
@@ -3,6 +3,14 @@
 /**
  * Representation of allocated bandwidth resource.
  */
-public interface BandwidthResourceAllocation extends BandwidthResourceRequest {
-
+public class BandwidthResourceAllocation extends BandwidthResourceRequest {
+    /**
+     * Creates a new {@link BandwidthResourceAllocation} with {@link Bandwidth}
+     * object.
+     *
+     * @param bandwidth allocated bandwidth
+     */
+    public BandwidthResourceAllocation(Bandwidth bandwidth) {
+        super(bandwidth);
+    }
 }