fixed #229: handling rapid switch flapping race conditions gracefully
diff --git a/src/main/resources/floodlightdefault.properties b/src/main/resources/floodlightdefault.properties
index 498fce5..5e1c13f 100644
--- a/src/main/resources/floodlightdefault.properties
+++ b/src/main/resources/floodlightdefault.properties
@@ -17,3 +17,4 @@
 net.floodlightcontroller.forwarding.Forwarding.idletimeout = 5
 net.floodlightcontroller.forwarding.Forwarding.hardtimeout = 0
 net.floodlightcontroller.onoslistener.OnosPublisher.dbconf = /tmp/cassandra.titan
+net.floodlightcontroller.onoslistener.OnosPublisher.EnableCleanup = True