[mrtg] Re: mail generation when the interface is operatively

[Alex van den Bogaerdt]

Williams, Garth wrote:
> 
> 
> One mechanism might be to run a perl script on the Target[] line, and in
> that script set a 1 for up and 0 for down, and the threshMax/MinI/O 0 and
> ThreshOKI/O at 1.  The graph would not be particularly useful, but the
> alerts would work.

I beg to differ...

If you get 1 for up and 0 for down, the average will effectively
display a number closely resembling availability.

Of course other factors play a role here but at least you know
the network interface was up during 98.6 % of the time?

As an added bonus, you get to see when a device was off line?

cheers,
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