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Performance Center - bandwidth simulation

Hi all, could you please help me with this question:  

We use Performance Center in order to simulate bandwidth of 100 MBytes ( indeed we have 1 GB).

So we go to Runtime Settings > Speed Simulation and use the following: 838860800 (bits in 100 MBytes) / number of Vusers in scenario. First of all, is it correct?

We suppose to see reponse time higher than usual and network utilization less than usual.  It's true about response time, but we are not sure about accurate limitation of bandwidth - if we go to one of our load generators, the graph of Network Utilization seems to be the same for different bandwidth defenitions.  

In other hand, our load generators are virtual (VMWare), so Network Utilization may be shown incorrect.  Please recommend how can we check the bandwidth changing (or how can the bandwidth on virtual load generators can be limited)  

Thank you!  

Yuliya

P.S. Unfortunatelly, we have no Shunra's network virtualization.


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