Revert "increase interval to 5 secs"

This reverts commit 2d4a49cf0aab7a2ac57da54dbcbee9d7792f7d6c.
diff --git a/src/main/java/net/onrc/onos/ofcontroller/flowmanager/FlowEventHandler.java b/src/main/java/net/onrc/onos/ofcontroller/flowmanager/FlowEventHandler.java
index 340bbd8..337587a 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/flowmanager/FlowEventHandler.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/flowmanager/FlowEventHandler.java
@@ -55,7 +55,7 @@
     // Refresh delay(ms)
     private final static long refreshTopologyDelay = 5000;
     // Refresh interval(ms)
-    private final static long refreshTopologyInterval = 5000;
+    private final static long refreshTopologyInterval = 1000;
     private Timer refreshTopologyTimer;
 
     private FlowManager flowManager;		// The Flow Manager to use