diff --git a/apps/openstacknetworking/api/src/main/java/org/onosproject/openstacknetworking/OpenstackRoutingService.java b/apps/openstacknetworking/api/src/main/java/org/onosproject/openstacknetworking/OpenstackRoutingService.java
index c6627af..0d4e7d6 100644
--- a/apps/openstacknetworking/api/src/main/java/org/onosproject/openstacknetworking/OpenstackRoutingService.java
+++ b/apps/openstacknetworking/api/src/main/java/org/onosproject/openstacknetworking/OpenstackRoutingService.java
@@ -80,5 +80,11 @@
      */
     void removeRouterInterface(OpenstackRouterInterface openstackRouterInterface);
 
-
+    /**
+     * Checks floatingIp deassociation when corresponding deleted vm.
+     *
+     * @param portId Deleted vm
+     * @param portInfo
+     */
+    void checkDisassociatedFloatingIp(String portId, OpenstackPortInfo portInfo);
 }