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OpenNMS: Visualize and monitor everything on your local and distributed networks

opennms.com

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Re: OpenNMS: Visualize and monitor everything on your local and distributed networks

#31

Network visualization tools have generally been a solution in search of a problem for me. At both work and home, my network is very stable and unchanging.

NMS systems are useful for monitoring large networks where something is likely to fail due to sheer quantity of devices/interfaces. Visualization is secondary to state capture and alerting.

Re: OpenNMS: Visualize and monitor everything on your local and distributed networks

#34
post #24

Earlier quoted context omitted.

...and good, too. In the default mode, all you have to do for configuration is tell it the names or IPs of things to monitor and an SNMP community string. It scans for every tree that it understands, and will rescan occasionally.

Does that mean that it has a library of devices so that it knows what SNMP stuff from them means? (I barely know how SNMP works).

Yes. That's called SNMP MIBs, and LibreNMS has a lot of the standard/well known device MIBs to parse out the details.

https://docs.librenms.org/Support/FAQ/#how-does-librenms-use...

Re: OpenNMS: Visualize and monitor everything on your local and distributed networks

#36
This has been on the front page for several hours, and it appears to be a $12,000 network visualization tool, but the website fails to show any screenshots or really much beyond an enterprise sales pitch.

Would someone whose upvoting this mind sharing what is interesting or compelling about this? I haven't been able to figure it out clicking around the website and 'Visualizing and monitoring everything on your local and distributed networks' is something kinda up my alley.

Re: OpenNMS: Visualize and monitor everything on your local and distributed networks

#38
I've been managing multiple instances of the free "Horizon" version of OpenNMS for nearly 10 years, even contributed a couple of bug fixes. It doesn't get much love from coworkers and it's an absolute beast to learn but it generally does the job. It's got a LOT of bells and whistles including support for all sorts of Comms and IT gear. It can be a tad clunky, pretty RAM and I/O intensive (Java) and the vast number of XML config files can be very daunting for new users. But it largely does what's needed including custom detection and status polling of services, recieving and processing SNMP traps and polling SNNP metrics. The built in graphs are useful but a bit old and ugly however it has Grafana integration and one day I'll look into trying that out.

It heavyweight and very "enterprise" - not necessarily going to cut it for home or small business use, but if you've got a huge sprawl of legacy systems and applications then it might be a decent fit for centralised monitoring.

Re: OpenNMS: Visualize and monitor everything on your local and distributed networks

#39

This has been on the front page for several hours, and it appears to be a $12,000 network visualization tool, but the website fails to show any screenshots or really much beyond an enterprise sales pitch. Would someone whose upvoting this mind sharing what is interesting or compelling about this? I haven't been able to figure it out clicking around the website and 'Visualizing and monitoring everything on your local…

Used it once, based on java, worked slow... reminded me of other "enterprise systems" of the era, big, clunky, java-based and slow.

https://docs.opennms.com/horizon/30/operation/admin/webui/da...

here are the screenshots

2/10, would not recommend. I liked zabbix a lot more, but then switched to nagios because "everyone else" was using it, and it was easier.

Re: OpenNMS: Visualize and monitor everything on your local and distributed networks

#40

This has been on the front page for several hours, and it appears to be a $12,000 network visualization tool, but the website fails to show any screenshots or really much beyond an enterprise sales pitch. Would someone whose upvoting this mind sharing what is interesting or compelling about this? I haven't been able to figure it out clicking around the website and 'Visualizing and monitoring everything on your local…

Used it once, based on java, worked slow... reminded me of other "enterprise systems" of the era, big, clunky, java-based and slow. https://docs.opennms.com/horizon/30/operation/admin/webui/da... here are the screenshots 2/10, would not recommend. I liked zabbix a lot more, but then switched to nagios because "everyone else" was using it, and it was easier.

Thanks! Though I am still left wondering who is upvoting this link.
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