--- a/src/helper/csma-helper.cc	Mon Apr 14 16:19:17 2008 -0700
+++ b/src/helper/csma-helper.cc	Thu Apr 17 13:42:25 2008 -0700
@@ -39,10 +39,10 @@
 
 void 
 CsmaHelper::SetQueue (std::string type,
-		      std::string n1, Attribute v1,
-		      std::string n2, Attribute v2,
-		      std::string n3, Attribute v3,
-		      std::string n4, Attribute v4)
+		      std::string n1, const AttributeValue &v1,
+		      std::string n2, const AttributeValue &v2,
+		      std::string n3, const AttributeValue &v3,
+		      std::string n4, const AttributeValue &v4)
 {
   m_queueFactory.SetTypeId (type);
   m_queueFactory.Set (n1, v1);
@@ -52,13 +52,13 @@
 }
 
 void 
-CsmaHelper::SetDeviceParameter (std::string n1, Attribute v1)
+CsmaHelper::SetDeviceParameter (std::string n1, const AttributeValue &v1)
 {
   m_deviceFactory.Set (n1, v1);
 }
 
 void 
-CsmaHelper::SetChannelParameter (std::string n1, Attribute v1)
+CsmaHelper::SetChannelParameter (std::string n1, const AttributeValue &v1)
 {
   m_channelFactory.Set (n1, v1);
 }