Re: Devmon / MRTG

[mv652 (at) softhome.net]

Thanks for that explanation. 

I'll take a look at the Devmon lists too. 


One of my concerns is 'over-monitoring' and consequently causing too much 
stress on the network and systems being monitored (including the monitoring 
server itself). 

A 5-minute average interface check would be too long for my needs.  Should I 
be concerned if I set the snmp monitoring to a 1-minute average? 

We don't have many devices at the moment, but the network has potential to 
grow quite rapidly. 


I suppose this could be a general question of 'how much monitoring is too 
much much'?  Some would say you could never have too much, but are there any 
benchmarks I can use to minimize any performance hits on my network caused 
by this monitoring? 


Mario 

Greg Hubbard writes: 

> The devmon system is separate from Xymon -- they work as partners.  Devmon
> can read the Xymon bb-hosts file to find directives, and it uses this
> information to configure itself for polling.  Devmon discovers SNMP devices
> and monitors them according to its own set of templates.  Devmon reports
> status to Xymon.  The most recent versions of Xymon and Devmon supposedly
> allow data from Devmon to be graphed in Xymon displays so the two systems
> appear to be very integrated -- but I have not tried this myself. 
>
> Devmon does the monitoring, and it uses its own device templates to control
> what gets monitored for each device type.  The standard template library
> includes a number of device types, but not all devices are equal, and it
> takes a while to get the hang of the devmon template approach so you can
> make your own templates. 
>
> The main devmon developer often participates on this list, but there are
> some devmon lists. 
>
> GLH 
>
>
> On 8/14/09, mv652 (at) softhome.net <mv652 (at) softhome.net> wrote:
> > Hi,
> > Could I get a quick-and-dirty explanation regarding the Devmon
> > implementation in Xymon 4.3.x?
> > The way I understand it, Devmon provides SNMP capabilities to Xymon so the
> > monitoring server can poll SNMP capable devices.
> > How is this different to Integrating MRTF data into XYMON, for example?
> > If I am interesting in getting bandwidth for various device interfaces, I
> > am assuming it is best to do via Devmon rather than integrate MRTG? 
> >
> > Lastly, is there a readme / howto that explains devmon-xymon setup? 
> >
> > Thanks,
> > Mario 
> >
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