I am Using Netflow with several Juniper, in most of them i just see a part of the trafic, in some cases is like half of the real trafic or even more, but i discover under the interface options (Edit) an option that says Sampling Frequency, the default value is 1 if i change this value por 100 the trafic that the interface shows a lot more than before, the problem is that still is not real now is much more than real trafic, what value should I configure? How this option modify the configuration on the Juniper Router?

Thank You for answer!!!