Traffic utilization on Interface for Netflow Data.

Question

Is there any minimum utilization on interface required to capture the NetFlow Data for that interface?

I have came across interfaces which shows intermittent NetFlow data getting captured for an interface, checked on the Wireshark Capture I can see the CFLOW data, but there is no data on the SW dashboard.

any ideas or any document/article related, would also help.

Node referred : CISCO ASR.

NetDev_sol · Answer

Thanks @stuartd , It helped. Just to inform, we have raised case to check on the same, as per support Yes there is possibility of NetFlow getting dropped if there is no or less utilization on the interface, but haven't confirmed on the amount of utilization, as in our case the utilization was hardly reaching to 1%.

stuartd · Answer

I don't know if there is a minimum but ....

We have an open case (or did) with Cisco TAC with a similar Netflow issue, and it has been recognised as a bug with the current 'workaround' being to remove and re-add the NetFlow config. We've scripted a job to do this every so many hours.