Monitor bandwidth

Hi,
I have a broadband line with 10mb up and down capacity and it is maxing out.
I need to find out which user, or what process, is using the capacity.
Is there a GUI  based tool which you would recommend to help me achieve this?
Thank you
mewtdAsked:
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AntzsConnect With a Mentor Infrastructure ServicesCommented:
Looks like you need a NetFlow Analyzer.  You can try any one of the software listed.  They have a free trial so you can install and use it to find the culprit.

http://www.pcwdld.com/best-free-netflow-analyzers-and-collectors-for-windows

I myself have used the software from SolarWins and ManageEngine.
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Kimberley from PaesslerConnect With a Mentor PRTG Product EvangelistCommented:
You could use PRTG Network Monitor, which will show you how much traffic you have (using SNMP) and who is using up the bandwidth (using netflow).  To give you an idea of what this would look like in PRTG, we have a couple of videos on the Paessler topic page here in Experts Exchange, or you can view the same videos directly on our website:
- [Video] Bandwidth monitoring using SNMP and WMI
- [Video] Bandwidth monitoring using NetFlow and Packet Sniffing

We offer a free 30-day trial version with an unlimited number of sensors (what is a sensor?).  After the 30 days it automatically reverts to our 100-sensor freeware version (free forever).  Generally speaking, for monitoring bandwidth, you would use one SNMP-based traffic sensor for each switch port that you care about, and one netflow sensor per switch.
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Keith RoseTechnical ManagerCommented:
I would second what Kimberly has recommended. PRTG is a very good package, and is extremely affordable.

I've used PRTG100 for smaller customers, and have found it to be one of the best network monitoring packages around. I especially enjoy the extend-ability of the package via scripting.
Have used it to monitor mail queues via shellscripts, track active SSH logins, SIP trunks as well as the usual network traffic & downtime alerts.
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