question about ns source code

[Sonia Tsui <sonia@CS.UCLA.EDU>]

Hi,

We are doing our simulation based on ns-2. We have some specific 
questions, can you please help?

We are doing simulation on RED (Random Early Detection).  We use all the
default parameters values set in red.cc.  But we found out that the
average queue length throughout our whole simulation is less than 0.1
which is far less than the default minimum threshould (which is 5).  So
RED's random drop never palyed a role in our simulation.  We are wondering 
if we need to adjust our network topology in order to raise the average queue,
or should we adjust red parameters, for example, lower the value of minimum 
threshold. 

thank you
---Sonia