[Xymon] network traffic monitoring

Scot Kreienkamp SKreien at la-z-boy.com
Fri Dec 6 15:31:38 CET 2013

MRTG has the ability to monitor much more than just throughput.  MRTG will collect and graph any number of variables (up to 4 I believe, I've never tried more than two) that can be collected by SNMP or scripts.  I have used it to monitor temperature, CPU load, length in minutes of daylight during the day, and several other things as well as throughput over the years I've used it.  I've also used RRDTool directly to monitor and maintain graphs of various things when MRTG didn't allow enough variables in a single graph or if I wanted more control over the process.

The bottom line is both MRTG and Devmon will work, as well as doing something directly with RRDTool like I have if Kris cares to do that.  I advocate for MRTG simply because I think setup/integration is easier with MRTG and Xymon.

From: Xymon [mailto:xymon-bounces at xymon.com] On Behalf Of W.J.M. Nelis
Sent: Friday, December 06, 2013 9:11 AM
To: Xymon MailingList
Subject: Re: [Xymon] network traffic monitoring

MRTG is easy to integrate with Xymon.... I had mine setup and running in less than five minutes since my distro had an MRTG RPM readily available.  Not trying to say anything against Devmon but the MRTG integration is a no brainer.  I would say go back to that if you think it will do what you want.

MRTG will monitor throughput only. One can tweak MRTG to measure two other things in stead of input and output, but the options are limited compared to Devmon. Thus if one wants to monitor only throughput, MRTG will do well. If one wants to monitor a number of other parameters as well, for instance temperature, memory utilisation or stack status, Devmon is a better option.

  Wim Nelis.

From: Xymon [mailto:xymon-bounces at xymon.com] On Behalf Of Kris Springer
Sent: Friday, December 06, 2013 2:58 AM
To: W.J.M. Nelis; Xymon MailingList
Subject: Re: [Xymon] network traffic monitoring

Does anyone have an easy installation guide for devmon on Ubuntu?  I installed it and got the SNMP_Session perl stuff installed, but I'm not adept enough at linux or perl to get devmon to start for some reason.  It's got a start script prebuilt for RedHat but that doesn't work for me and I don't know which paths to edit to make it work.  Even if I do get it running it looks like I'll need some advanced configs with OID's that I have no idea about.  Devmon was suggested by previous posts so I thought I'd give it a shot.  MRTG seems way easier than this and doesn't require OID's.  Should I just go back to that?

Thank you.
Kris Springer


On Thu, Dec 5, 2013 at 11:23 PM, W.J.M. Nelis <Wim.Nelis at nlr.nl<mailto:Wim.Nelis at nlr.nl>> wrote:
That's great for the monitoring server, but I want it for all the network devices and servers that I'm monitoring.  I'm going to get 'devmon' going and see if that will work for us.

When installing Devmon, consider installing the patches on the SourceForge Devmon page as well. Although the latest svn version dates of last September, a number of improvements (patches) submitted in the last two years are not yet included in the distribution version of Devmon.

Kind regards,
  Wim Nelis.

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