Question on host/newtork load

[Gilles Poiret]

Hi, 

I plan to monitor a large network (spread : worldwide, 30 equipments, 60 services to begin)
I have to have very accurate information, so checks will occur every 1 or 2 min, I think.( for instance, to catch a reboot)

First point
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I'm wondering about the type of Nagios host required (CPU, memory,...) in that configuration, and if the volume of equipments/services raise (x2, for instance)
( Is a PIII 750 Mhz, 256 Mo RAM enough ?)  

This host will also run MRTG, to view bandwidth on 20 equipments.

Second point 
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which is the bandwidth overhead generated by those checks ? Is there a way to evaluate it by advance ?

I'd like feedback from people who are using Nagios on that context.


Thanks for advance,
-- 
Gilles Poiret


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