NetFlow NetFlow is a feature that was introduced on Cisco routers around 1996 that provides the ability to collect IP network traffic as it enters or exits an interface. By analyzing the data provided by …

NetFlow provides valuable information about network users and applications, peak usage times, and traffic routing. Cisco invented NetFlow and is the leader in IP traffic flow technology.

Do you know how NetFlow works or how to analyze NetFlow? Learn more about NetFlow and download a free 30-day trial of SolarWinds NetFlow Traffic Analyzer.

NetFlow is a network protocol widely used to collect metadata about the IP traffic flowing across network devices such as routers, switches and hosts.

Oct 18, 2024 · NetFlow is a network monitoring protocol, developed by Cisco, designed to capture measurements about the volume and types of traffic traversing a network device.

Jul 21, 2025 · Netflow is a network protocol that collects & monitors network flow traffic, capturing important aspects such as IP addresses, protocol types, and port numbers.

3 days ago · This article will cover the basics of Netflow, including its use cases, Netflow supported devices, Netflow history, and variants. We’ll also dive into the technical details of how the Netflow …

NetFlow is a network protocol system created by Cisco that collects active IP network traffic as it flows in or out of an interface. The NetFlow data is then analyzed to create a picture of network traffic flow …

NetFlow collects and exports IP flow metadata (not packet payloads) from network devices. Learn how it works, NetFlow v5/v9 vs IPFIX/sFlow, and use cases.

What is NetFlow? NetFlow, the most widely-used standard for flow data statistics, was developed by Cisco to monitor and record all traffic as it passes in to or out of an interface.