diff --git a/examples/synthetic-topology.cc b/examples/synthetic-topology.cc
index 39c45eb..0b03c7c 100644
--- a/examples/synthetic-topology.cc
+++ b/examples/synthetic-topology.cc
@@ -91,15 +91,19 @@
   CcnxAppHelper consumerHelper ("ns3::CcnxConsumer");
 
   consumerHelper.SetPrefix ("/6");
+  consumerHelper.SetAttribute ("MeanRate", StringValue ("1Mbps"));
   ApplicationContainer consumers = consumerHelper.Install (Names::Find<Node> ("/synthetic", "c1"));
 
   consumerHelper.SetPrefix ("/7");
+  consumerHelper.SetAttribute ("MeanRate", StringValue ("2Mbps"));
   ApplicationContainer consumers2 = consumerHelper.Install(Names::Find<Node> ("/synthetic", "c2"));
 
   consumerHelper.SetPrefix ("/8");
+  consumerHelper.SetAttribute ("MeanRate", StringValue ("3Mbps"));
   ApplicationContainer consumers3 = consumerHelper.Install(Names::Find<Node> ("/synthetic", "c3"));
   
   consumerHelper.SetPrefix ("/10");
+  consumerHelper.SetAttribute ("MeanRate", StringValue ("10Mbps"));
   ApplicationContainer consumers4 = consumerHelper.Install(Names::Find<Node> ("/synthetic", "c4"));
 
   consumers.Start (Seconds (0));