[mrtg] Re: graph last value with current?

Alex van den Bogaerdt alex at ergens.op.het.net
Mon Sep 22 22:41:53 MEST 2003

On Mon, Sep 22, 2003 at 02:26:14PM -0500, John wrote:

> What i want to get the last value recieved and add it to the current
> value that it just recieved, then graph that as a gauge so i have a 
> ever increasing graph. BTW this is for manager fluff. 
> like "$BW bandwidth saved to date!" or something like that.

You mean you need the opposite of what a normal counter accomplishes?

You get some kind of value starting at zero each time you poll (just
like ABSOLUTE) and need to graph the total (as with GAUGE) ?

It is probably best to gather the numbers using a separate script,
add them to the grand total and feed this grand total to MRTG
(using the external program interface).

This being said, I think you really should use another program, such
as excel, in stead of creating a workaround using MRTG.


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