--- a/examples/tcp/tcp-nsc-lfn.cc	Mon Aug 13 10:46:09 2012 -0700
+++ b/examples/tcp/tcp-nsc-lfn.cc	Mon Aug 13 16:08:13 2012 -0700
@@ -125,8 +125,8 @@
     {
       Address remoteAddress (InetSocketAddress (ipv4Interfaces.GetAddress (i), servPort));
       OnOffHelper clientHelper ("ns3::TcpSocketFactory", remoteAddress);
-      clientHelper.SetAttribute ("OnTime", RandomVariableValue (ConstantVariable (1)));
-      clientHelper.SetAttribute ("OffTime", RandomVariableValue (ConstantVariable (0)));
+      clientHelper.SetAttribute ("OnTime", StringValue ("ns3::ConstantRandomVariable[Constant=1]"));
+      clientHelper.SetAttribute ("OffTime", StringValue ("ns3::ConstantRandomVariable[Constant=0]"));
       ApplicationContainer clientApp = clientHelper.Install (n.Get (j));
       clientApp.Start (Seconds (1.0 + i));
       clientApp.Stop (Seconds (runtime + 1.0 + i));