10 Top Network Traffic Analysis Tools for Faster Troubleshooting and Capacity Planning
A request to upgrade a saturated circuit is easy to raise and hard to defend. The interface graph proves the link is full. It says nothing about which application, host or conversation filled it, so the spend gets approved on assumption instead of evidence. The same missing detail turns up everywhere else. Incidents run long because the cause is guessed at, capacity planning rests on estimates, and security questions arrive weeks after the traffic record expired.