diff --git a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/event/VtnRscEvent.java b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/event/VtnRscEvent.java
index ce3faae..ede90fb 100644
--- a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/event/VtnRscEvent.java
+++ b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/event/VtnRscEvent.java
@@ -37,6 +37,14 @@
          */
         FLOATINGIP_DELETE,
         /**
+         * Signifies that Floating IP has been bound.
+         */
+        FLOATINGIP_BIND,
+        /**
+         * Signifies that Floating IP has been unbound.
+         */
+        FLOATINGIP_UNBIND,
+        /**
          * Signifies that router has create.
          */
         ROUTER_PUT,