[Ntop] Ntop data sFlow not right.

[mario.carassale]

Hi Guys,

i have got Ntop 3.2 running on Debian and all seems to be working fine 
except one thing which i don't understand.

The data sent and received is just not right to me.
The Ntop is receiving sFlow from three different Foundry box which are 
Core routers one of which is monitoring transit traffic.
The data shown is just too low. We are talking about KB of data. It just 
can't be right.

Can someone help please with any suggestions?

Thank you

Mario