Traffic Analysis with Netflow

SNMP is useful for collecting basic network statistics such as packet counts, interface status, and overall device health. However, when deeper visibility is needed into the type of traffic moving through the network, SNMP alone is not enough. NetFlow was introduced by Cisco to provide more detailed traffic analysis and flow-based monitoring. In this course, learners will understand how NetFlow identifies traffic passing through an interface, organizes it into unique flows, collects statistics about those flows, and exports the information to a NetFlow Collector. The course covers key NetFlow concepts such as NetFlow Records, NetFlow Cache, NetFlow Monitors, and NetFlow Exporters. Learners will also explore how to configure both Original NetFlow and Flexible NetFlow using IOS commands. In addition, the course explains how to control the amount of data collected by using optional NetFlow Samplers and Input Filters. This course is ideal for anyone who wants to understand how NetFlow works and how it can be used for better network visibility, traffic analysis, and monitoring.