Follow the Flexible NetFlow Configuration Guide to configure Flexible NetFlow:http://www.cisco.com/en/US/docs/ios-xml/ios/fnetflow/configuration/xe-3s/fnf-xe-3s-book.html
Keith, netflow export traffic bypasses output features (for speed) and isn't encrypted.You can work around this by creating a crypto tunnel to the netflow collector, and routing the netflow export through the tunnel.
The CPU utilisation depends on the amount of traffic through the box. Matching each packet to the correct flow takes a tiny amount of CPU - so the more traffic that flows, the more CPU that's needed.Also, exporting those flows from the box takes some...
You can use Cisco Feature Navigator to find this out: http://www.cisco.com/go/fnIn this case choose "Search by Feature", add "IPv6 Tunneling: Automatic 6to4 Tunnels" and "netflow", choose your platform and the relevant releases will be shown.
No reviews or comparisons, just a big table-o-links:Freeware NetFlow Software:http://www.cisco.com/en/US/products/ps6601/networking_solutions_products_generic_content0900aecd805ff72b.htmlNetFlow Commercial Software Packages:http://www.cisco.com/en/US...
