--- a/src/test/ns3wifi/wifi-msdu-aggregator-test-suite.cc	Thu Aug 23 10:52:15 2012 -0700
+++ b/src/test/ns3wifi/wifi-msdu-aggregator-test-suite.cc	Thu Aug 23 16:00:17 2012 -0700
@@ -149,10 +149,8 @@
   OnOffHelper onoff ("ns3::UdpSocketFactory",
                      InetSocketAddress (staNodeInterface.GetAddress (0),
                                         udpPort));
-  onoff.SetAttribute ("DataRate", DataRateValue (DataRate ("1Mbps")));
   onoff.SetAttribute ("PacketSize", UintegerValue (100));
-  onoff.SetAttribute ("OnTime", StringValue ("ns3::ConstantRandomVariable[Constant=1]"));
-  onoff.SetAttribute ("OffTime", StringValue ("ns3::ConstantRandomVariable[Constant=0]"));
+  onoff.SetConstantRate (DataRate ("1Mbps"));
   ApplicationContainer sourceApp = onoff.Install (ap.Get (0));
   sourceApp.Start (Seconds (1.0));
   sourceApp.Stop (Seconds (9.0));