diff --git a/src/main/java/net/onrc/onos/ofcontroller/flowmanager/IFlowSyncService.java b/src/main/java/net/onrc/onos/ofcontroller/flowmanager/IFlowSyncService.java
new file mode 100644
index 0000000..957386f
--- /dev/null
+++ b/src/main/java/net/onrc/onos/ofcontroller/flowmanager/IFlowSyncService.java
@@ -0,0 +1,12 @@
+package net.onrc.onos.ofcontroller.flowmanager;
+
+import net.floodlightcontroller.core.IOFSwitch;
+import net.floodlightcontroller.core.module.IFloodlightService;
+
+/**
+ * @author bocon
+ *
+ */
+public interface IFlowSyncService extends IFloodlightService {
+    public void synchronize(IOFSwitch sw);
+}