diff --git a/src/main/java/net/floodlightcontroller/bgproute/IBgpRouteService.java b/src/main/java/net/floodlightcontroller/bgproute/IBgpRouteService.java
index 35bc3d4..0e95d9e 100644
--- a/src/main/java/net/floodlightcontroller/bgproute/IBgpRouteService.java
+++ b/src/main/java/net/floodlightcontroller/bgproute/IBgpRouteService.java
@@ -12,5 +12,9 @@
 
 	public String getRouterId();
 
-	public void  clearPtree() ;
+	public void clearPtree();
+	
+	//TODO This functionality should be provided by some sort of Ptree listener framework
+	public void prefixAdded(PtreeNode node);
+	public void prefixDeleted(PtreeNode node);
 }