Dear ns_users, I am using ErrorModel agent in my simulation. And I want to create a link which has a bit error rate of 1e-08. If I set the rate $loss_module1 set rate_ 1e-05 it drops packets. But if I set it to 1e-06 , 1e-07 and so on, It doesn't do anything. I run the simulation 50 sec. Is there a way to make the error rate more sensitive? Thanks in advance... Fusun Inanc