Added metered annotation to link

Change-Id: Ief7410d442e8e1c556cc97c0578aa5d717a7b127
diff --git a/core/net/src/main/java/org/onosproject/net/link/impl/BasicLinkOperator.java b/core/net/src/main/java/org/onosproject/net/link/impl/BasicLinkOperator.java
index 47cbdc6..05943e5 100644
--- a/core/net/src/main/java/org/onosproject/net/link/impl/BasicLinkOperator.java
+++ b/core/net/src/main/java/org/onosproject/net/link/impl/BasicLinkOperator.java
@@ -113,6 +113,9 @@
         if (cfg.flapping() != DEF_FLAPPING) {
             b.set(AnnotationKeys.FLAPPING, String.valueOf(cfg.flapping()));
         }
+        if (cfg.isMetered() != null) {
+            b.set(AnnotationKeys.METERED, String.valueOf(cfg.isMetered()));
+        }
         return b.build();
     }