NetFlow across WAN

[CPBCAnderson]

Hello,
We're preparing to install NNA for the first time and I couldn't find any architectural documentation or discussions, so I thought I'd ask here. Does anyone have any experience putting the NNA server at a different location than the switches?

We have 6 offices and a datacenter, so I was planning on putting NNA in our datacenter where our XI server is hosted and then ship all NetFlow traffic across our site to site connections. I think most of our offices have fast enough internet to accommodate this, but has anyone else run into any problems that we should consider or gotchas we'll have to work around?

Thanks,
Chris

[tgriep]

The traffic generated when the Netflow data is sent is fairly small.
All that is being sent in the flow data is the statics of what is passing through the device and not the actual data itself.
Plus, the data is sent using UDP so the overhead is even lower and you shouldn't see more than a few megabytes of data being sent across the link every 5 minutes.
If you have any more questions, let us know.

[CPBCAnderson]

Just following up on this. We've implemented NNA and have all remote locations sending their NetFlow data across site to site VPNs and have not noticed any increase in bandwidth usage. Our pipes are pretty beefy, but so far it's been all good!

Thanks.

[scottwilkerson]

Just following up on this. We've implemented NNA and have all remote locations sending their NetFlow data across site to site VPNs and have not noticed any increase in bandwidth usage. Our pipes are pretty beefy, but so far it's been all good!

Thanks.

Thanks for following up!