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How to measure network performance through passive traffic analysis


Whichever tool you use it is important to  understand the fundamentals of how network performance metrics (like latency, packet loss or throughput) can be calculated.This calculation can be manual with Wireshark or any other packet analyzer or automated with the NPM solution of your choice.
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Topics: performance troubleshooting, NPM, network performance, Network troubleshooting

What's the Impact of TCP events on Application Performance?


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! 

0-Windows is one of these key indicators. This article will teach you how to interpret this data whether you use Wireshark or PerformanceVision.

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Topics: performance troubleshooting, performance diagnostic, APM, TCP

How to handle IT performance complaints


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. 

This article discusses: 

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Topics: performance troubleshooting, performance diagnostic, application performance

How-to reduce MTTR with Wire Data Real Time Transaction Analysis



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:

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Topics: ITOA, application performance

How To capture traffic with VMware VDS and performancevision


Most of your critical application traffic does not reach your physical network infrastructure anymore: it is carried by virtual switches inside your VMware farm. 

To rundiagnostics, you need to capture this virtual traffic:how can you do that?

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Topics: APM, virtual

How to capture traffic ? (SPAN vs TAP)



This is an extract from Performance Vision’s Users Guide. As this is useful data for most users, we have decided to publish it on our blog.PerformanceVision can rely on two mechanisms to capture network traffic: Port Mirroring (commonly called SPAN) & TAP (Terminal Access Point).

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Topics: Network troubleshooting

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