dcsimg
Main » TERM » N »

NetFlow

NetFlow is a network protocol (developed by Cisco) that monitors and collects important network traffic information, including peak usage times, traffic routing and application usage, to show the overall flow and volume of the network. Basically, it can track where traffic is coming from, where it is going and how much traffic is being generated at any time.

This network data can be captured at the device level, using for example, a router with the NetFlow feature enabled. Devices that use a NetFlow collector (hardware or software-based controllers) process the data and present it in readable format. There are a number of NetFlow collectors including Cisco, freeware and third party commercial vendors' products that report and utilize NetFlow data.

Cisco NetFlow

Image: Creating a flow in NetFlow, source; Introduction to Cisco IOS NetFlow










LATEST ARTICLES
Texting & Chat Abbreviations

From A3 to ZZZ this guide lists 1,500 text message and online chat abbreviations to help you translate and understand today's texting lingo. Read More »

List of Well-Known TCP Port Numbers

Port numbers 0 to 1024 are reserved for privileged services and designated as well-known ports. This list of port numbers  are specified in... Read More »

STUDY GUIDES
Computer Architecture Study Guide

Computer architecture provides an introduction to system design basics for most computer science students. Read More »

Network Fundamentals Study Guide

Networking fundamentals teaches the building blocks of modern network design. Learn different types of networks, concepts, architecture and... Read More »

The Five Generations of Computers

Learn about each of the five generations of computers and major technology developments that have led to the computing devices that we use... Read More »