# Flow-Based Monitoring (NetFlow/sFlow)

> Master flow-based network monitoring using NetFlow and sFlow to analyze traffic patterns, detect anomalies, and optimize bandwidth.

Canonical: https://codelivly.com/rooms/flow-based-monitoring-netflowsflow
Last updated: 2026-09-07

| | |
|---|---|
| Level | Intermediate |
| Category | Networking |
| Lessons | 3 |
| Estimated time | 30 min |
| XP | 100 |

This module explores flow-based network monitoring, focusing on industry standards like NetFlow, sFlow, and IPFIX. You will learn how flow data is generated, exported, and analyzed to provide deep visibility into network traffic patterns, top talkers, and application usage without the massive overhead of full packet capture. From a cybersecurity perspective, flow data is critical for detecting volumetric DDoS attacks, identifying data exfiltration, and mapping lateral movement. You will discover how defenders leverage flow collectors to establish baselines, hunt for network anomalies, and respond to threats at scale across complex enterprise environments.

## Lessons

1. What Is Flow-Based Monitoring and Why Does It Matter (30 min)
2. NetFlow vs sFlow vs IPFIX (30 min)
3. Guided Lab: Analyzing Traffic Patterns with NetFlow (30 min)

## Related

- [Learning path: Network Troubleshooting and Monitoring](https://codelivly.com/learning-paths/network-troubleshooting-and-monitoring)
- [All rooms](https://codelivly.com/rooms)