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What commercial or open-source tools are available to measure bandwidth utilization on a network? The tools should provide current and historical snapshots.

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closed as off-topic by HopelessN00b, dawud, Katherine Villyard, Rex, mdpc Feb 23 at 4:37

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1 Answer

up vote 6 down vote accepted

For monitoring, I would say something like Cacti, Ganglia or Munin. And for alerts, I would use Nagios.

For spot monitoring, ntop is useful for a quick graphical overview. One could always use netstat or tcpdump if you are into the command line stuff.

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do any of these use the .NET stack so we don't need to install other languages? –  Pure.Krome Apr 30 '09 at 8:22
    
Sorry, I'm not a Windows guy. =) –  Jauder Ho Apr 30 '09 at 8:52
    
Cacti (often) collects data via SNMP, so you could set up Cacti running in a VM monitoring your servers. –  Tom Ritter Apr 30 '09 at 13:59
    
Even MRTG works fine. Have a try. –  Caterpillar Jun 4 '09 at 11:07
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