diff --git a/core/net/src/main/java/org/onosproject/net/group/impl/GroupManager.java b/core/net/src/main/java/org/onosproject/net/group/impl/GroupManager.java
index 091265a..1150d05 100644
--- a/core/net/src/main/java/org/onosproject/net/group/impl/GroupManager.java
+++ b/core/net/src/main/java/org/onosproject/net/group/impl/GroupManager.java
@@ -224,6 +224,13 @@
                                      newCookie);
     }
 
+    @Override
+    public void purgeGroupEntries(DeviceId deviceId) {
+        checkPermission(GROUP_WRITE);
+        store.purgeGroupEntry(deviceId);
+    }
+
+
     /**
      * Delete a group associated to an application cookie.
      * GROUP_DELETED or GROUP_DELETE_FAILED notifications would be