--- a/examples/routing/mixed-global-routing.cc	Mon Aug 13 10:46:09 2012 -0700
+++ b/examples/routing/mixed-global-routing.cc	Mon Aug 13 16:08:13 2012 -0700
@@ -113,8 +113,8 @@
   uint16_t port = 9;   // Discard port (RFC 863)
   OnOffHelper onoff ("ns3::UdpSocketFactory",
                      InetSocketAddress (i5i6.GetAddress (1), port));
-  onoff.SetAttribute ("OnTime", RandomVariableValue (ConstantVariable (1)));
-  onoff.SetAttribute ("OffTime", RandomVariableValue (ConstantVariable (0)));
+  onoff.SetAttribute ("OnTime", StringValue ("ns3::ConstantRandomVariable[Constant=1]"));
+  onoff.SetAttribute ("OffTime", StringValue ("ns3::ConstantRandomVariable[Constant=0]"));
   onoff.SetAttribute ("DataRate", StringValue ("300bps"));
   onoff.SetAttribute ("PacketSize", UintegerValue (50));