[ns] How to set the parameter on ONS-ns

[Ekularn Dhavarudha]

 
Dear all,
          I am using OBS Simulator on ns-allinone-2.28 and I don't know how to 
configure the parameter Classifier/BaseClassifier  nfdl, 
Classifier/BaseClassifier maxfdls, and Classifier/BaseClassifier  option. What 
are different between the nfdl and maxfdls, and what are the relationship 
between them and the option? 
            I'm very confused and looking forward to your kind reply.
Sincerly Yours,
Ekularn Dhavarudha