Splunk Add-on for Netflow: How do we estimate sizing for our Splunk architecture to get NetFlow data into Splunk?

[sunrise]

Hello Splunkers,

We plan to get NetFlow data from Cisco routers and switches by using the Splunk Add-on for NetFlow.
https://splunkbase.splunk.com/app/1658/

We are now sizing Splunk architecture and cannot find any information about it.
If you have already used the Splunk Add-on for NetFlow, please help me by answering following questions.

How many flows can this Add-on process?
How have you scaled your system, and how many routers and switches have you used with this Add-on?
What can be the bottlenecks if incoming NetFlow data increases, like CPU cores or memory ?

Of course, we appreciate other information about this add-on.
Thank you for your help.

[jakemichaelwils · Accepted solution]

Hello,

Curious, why are you worried about sizing? Depending on the flow add on that you choose, you are only going to get summarized data anyway.
http://blog.tmcnet.com/advanced-netflow-traffic-analysis/2015/11/splunk-netflow-support-vendor-compa...

How many flows per second do you plan on sending to splunk?