The scenario do need to match what is expected. Are the ACK messages ok or 
expected when you look at the wireshark?

What is the call flow you are expecting vs what you are getting. If you can't 
or don't want to share, you do have to make sure the scenario match what you 
expect as well as what the OpenSIPs gives you in responses.

greg
On Sep 12, 2011, at 9:32 AM, Luis Morales wrote:

> Greetings,
> 
> I'm trying to use SIPp to perform a stress test on a SIP proxy Server ( I'm 
> using Opensips as a Proxy Server), but with a low CPS (starting with 200 CPS) 
>  I'm getting a lot of unexpected messages errors in SIPp. I used -trace_err 
> to see what the error where, and basically it's receiving some responses that 
> it did not expect, such as receiving and ACK while expecting and OK. I've 
> also used Wireshark to analyze what was going on, and I saw that the proxy 
> was apparently working fine, so I'm wondering if i have to modify the SIPp 
> scenarios for it to work, or what else could I be doing wrong? (I've tried 
> the defaults SIPp scenarios, and I've also modified them, and I've always get 
> the same results).
> 
> 
> Thanks, 
> Luis Morales.
> ------------------------------------------------------------------------------
> Doing More with Less: The Next Generation Virtual Desktop 
> What are the key obstacles that have prevented many mid-market businesses
> from deploying virtual desktops?   How do next-generation virtual desktops
> provide companies an easier-to-deploy, easier-to-manage and more affordable
> virtual desktop 
> model.http://www.accelacomm.com/jaw/sfnl/114/51426474/_______________________________________________
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Doing More with Less: The Next Generation Virtual Desktop 
What are the key obstacles that have prevented many mid-market businesses
from deploying virtual desktops?   How do next-generation virtual desktops
provide companies an easier-to-deploy, easier-to-manage and more affordable
virtual desktop model.http://www.accelacomm.com/jaw/sfnl/114/51426474/
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