diff --git a/src/main/java/net/floodlightcontroller/core/IOFSwitch.java b/src/main/java/net/floodlightcontroller/core/IOFSwitch.java
index 40aa530..72ec404 100644
--- a/src/main/java/net/floodlightcontroller/core/IOFSwitch.java
+++ b/src/main/java/net/floodlightcontroller/core/IOFSwitch.java
@@ -624,4 +624,9 @@
      */
     public void setTableFull(boolean isFull);
 
+    /**
+     * Get the switch driver hanshake state
+     */
+    public String getSwitchDriverState();
+
 }