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network load analysis

is there a GUI software that gives a network load analysis. I thought a while ago I saw something that had a GUI that showed connections on a network, and graphically showed which connections where using the most bandwidth.
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JeffBeall
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JeffBeall
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rfc1180Commented:
Something quick and dirty:

http://www.paessler.com/prtg/

Might need to use wireshark in conjunction with PRTG.

If you need a long term solution, you can use cact and ntop:

http://www.cacti.net/
http://www.ntop.org/overview.html

Billy
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JeffBeallAuthor Commented:
would ntop or cacti analyze the whole network? or just from the network port on the pc it's installed on?
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rfc1180Commented:
Well, you have to configure it on how you want to analyze the network, it ultimately can analyze anything you want it to analyze (Almost anything); the protocol they use for gather data to analyze is SNMP. Cacti would poll your devices, and ntop would be used with a switch that had the capability capturing data on a SPAN (Mirror port).

Cact is a Graphing Tool that can monitor servers, nodes, hosts, network devices, etc (Memory, CPU, Bandwidth, Sessions, Load, etc)
Ntop can be used to analyze data packets for top users using certain protocols, bandwidth usage base on protocol, etc.

Billy
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JeffBeallAuthor Commented:
thank you.
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