Network administrators rely on network traffic analysis to troubleshoot complex problems and specifically performance degradations. The usefulness of network analysis solutions is obvious to all of them.
The main question raised by most network teams is how fast can we get to the root cause and which tools can really help us.
We see two main approaches to network traffic analysis:
You may also be interested in this article: "Understand the 6 reasons which drive your approach to network analysis."
Both approaches have advantages and drawbacks.
We have summarised the challenges which should guide to use packet capture or stream analysis and the operational impacts of each in this performance troubleshooting guide:From Trace file analysis to Real Time Stream Analysis