[Ntop] Question about licenses and ipfix traffic

[Roberto Alvarado]

Hi Folks,

A question, if I have a router with around 50 Gbps of traffic and I want to send this traffic to ntong/nprobe using IPFIX, 

What is the correct license for this?

We use a 1:1000 ratio for the collectors(peakflow) actually.

Thanks
Regards