Network monitoring tools

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Hi,

Does anyone know of any good network monitoring tools? Need something that will run on Windows and will monitor and log bandwith, trafic coming inside/outside, what apps are using most of the bandwith . Our current network aplliances are all Cisco. We have Cisco 3750s switches, Cisco ASA 5510 and 5505 firewalls. Since last week our network seems to be suffering a lot e.g copying a file of about 1gb from one site to another. We got a 100mb point to point link. Problem seem to start from nowhere.

Help would be greatly appreaciated.

 

Nagios comes highly recommended, worth checking out to see if it meets all your requirements - Nagios - The Industry Standard in IT Infrastructure Monitoring

 

Are the issues only apparent when copying across the WAN link? Is traffic routed or switched across the WAN link?

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Try this tool for monitoring interface utilisation. It will give you real-time utilisation. Just make sure you set the interface speed to the correct figure as the results are in %.

 

Thanks guys, been looking at nagios and solarwinds. Will test this apps tomorrow.

Thanks Daniel, will try you're software tomorrow.

 

Don't forget cacti too. It's great a showing the performance (or not ) of a device over time.
We use centreon as well.

 

The company ive just started working for this week use Nagios.....looks very impressive.