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.
Traditionally network administrators have learnt to use packet analysis for troubleshooting complex problems. Some invested in expensive traffic capture appliance to capture and retain the traffic for later analysis; in case they get reports for a performance degradation, they can extract trace files and load them into a network analyzer (Wireshark or commercial) and look at packets.
The behaviour of clients and servers has an impact on the performance of the application delivery. Tracking key indicators at the TCP level can help to diagnose performance issues. Understanding these metrics is key to troubleshooting slowdown!
Do you know how many tickets does your helpdesk handle regarding application performance? While you probably have some stats about this (or your helpdesk team can gather it for you), the more important question is how many of these cases are diagnosed and fixed is more of a challenge.
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Today an increasing number of IT professionals focus their attention on network reporting. There are a lot of reasons for this. Indeed, reports synthesizethe operational analytics which reflect the health of applications and IT infrastructure, allowing to: