What is NetFlow?

Cisco® NetFlow technology is an embedded feature within Cisco IOS devices. NetFlow data records consist of information about source and destination addresses, along with the protocols and ports used in the end-to-end conversation. Caligare Flow Inspector uses this information to generate graphs and reports on traffic patterns and bandwidth utilization.

More detail information (data formats, RFC, configuration) about Netflow is available on the http://netflow.caligare.com web page.