diff -r cfed4f87e003 -r 060dba23e9bb src/bridge/examples/csma-bridge.cc
--- a/src/bridge/examples/csma-bridge.cc	Mon Aug 13 10:46:09 2012 -0700
+++ b/src/bridge/examples/csma-bridge.cc	Mon Aug 13 16:08:13 2012 -0700
@@ -112,8 +112,8 @@
 
   OnOffHelper onoff ("ns3::UdpSocketFactory", 
                      Address (InetSocketAddress (Ipv4Address ("10.1.1.2"), 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]"));
 
   ApplicationContainer app = onoff.Install (terminals.Get (0));
   // Start the application