Need Network Traffic Generator (Free/Open source) to push 50+ MBPS. ISP grade.

I work for a wholesale ISP.  We have a circuit that we need to stress test by pushing as much traffic as possible through it.  It is a 50MBPS circuit. Our own tests with FTP, we have only been able to reach 15MPBS.  

Is their any free/open source software that we can use to max out this circuit?  I am assuming we may need a distributed program that will run on multiple machines to reach this speed?
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Kamran ArshadConnect With a Mentor IT AssociateCommented:

You can check out the below traffic generators;
yegs2000Connect With a Mentor Commented:
Not sure if this helps or not, but do you have Cisco equipment / Cisco contract? If so you may be able to talk to them and use their Pagent software.

This is Cisco's proprietary traffic generation software and is very "closed-source" but its worth a try. Other than that I don't really know many other pieces of software used for traffic-generation that are free.

Hope this helps!

Best of luck,
Steve JenningsConnect With a Mentor IT ManagerCommented:
Try iperf:

You will certainly need to run it from several machines AND it relies on a client / server relationship. But it seems to work and you can achieve some high through put by configuring window sizes/buffers.

Good luck,
gui4lifeAuthor Commented:
Thank you,

However, none of these say how much data they can actually generate.  Is to generate this much data with 1 client at each end?
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