[mrtg] Re: MRTG methodology

[Roth, Gabrielle]

Hi Tyler,
Welcome to the mrtg list.

The 'clear counters' question is an interesting one.  Here's my post from a
few months ago on the subject:
http://www.ee.ethz.ch/~slist/mrtg/msg08966.html
Here's the official explanation from Cisco:
http://www.cisco.com/warp/public/477/SNMP/5.html#Q5 (that whole doc is
pretty useful actually)

As for how mrtg does its data calculation...I'm pretty sure Alex explained
this in the FAQ (http://faq.mrtg.org/) but I'm getting a 'server down'
message from the FAQ right now.

HTH

-gabrielle
"Five out of four people have a problem with math."


>I think my question is this.  What happens if those counters were to be
>cleared? (by a 'clear counters' on a Cisco for example).  Would all my
>graphs have a spike down to zero on them?  How exactly does 
>the averaging
>work?  I know I can put the 'guage' keyword in the options to 
>signify that
>the data is a 'current status' measurement and not a 
>cumulative one, but
>I'd like to better understand how MRTG does it's data calculation.

--
Unsubscribe mailto:mrtg-request at list.ee.ethz.ch?subject=unsubscribe
Archive     http://www.ee.ethz.ch/~slist/mrtg
FAQ         http://faq.mrtg.org    Homepage     http://www.mrtg.org
WebAdmin    http://www.ee.ethz.ch/~slist/lsg2.cgi