On 4/5/07, Jon Lewis <[log in to unmask]> wrote:
> On Mon, 2 Apr 2007, Michael D. Kutyna wrote:
>
> > Cacti.  Very easy to setup.  It uses MRTG though so any short outages more
> > than a few days ago probably won't be noticable to the graphs. Very nice for
> > monitoring trends on your machines.
>
> Cacti doesn't use MRTG and really isn't appropriate for monitoring brief
> intermittent outages.  Since the default is to poll SNMP counters every 5
> minutes, a 30s outage would be indistinguishable from "normal traffic
> fluctuations".
>

Check out smokeping.

-- 

Ben