[mrtg] Re: A target arithmetic issue

[MrPaul]

On 5/31/06, Adam Bayless <adam at baylessfamily.org> wrote:
>
> Morgan Miskell thought no one was listening and belted out:
> > Makes sure that you use SNMP v2, your probably just exceeding traffic
> > levels for version one....just change your Top line to be:
> >
> > Target[oc3-total]: \POS3/0/0:community at router:::::2 +
> >                  \POS8/0/0:community at router:::::2 +
> >                  \POS8/0/0:community at router:::::2
> >
> >
>
>
> Thanks, Morgan, but I already looked into that. I would just switch to v2, but one of
> the cards doesn't seem to support it correctly... it gives zeros all the time in the
> ifHCInOctets counters, which is less useful than the current situation. In any case,
> I know the interfaces themselves are not exceeding the limits of 32bit counters at
> this point, though they will as we increase traffic at some point in the future.
>
> -adam

My reccomendation would be do the totaling of data outside of MRTG.
It's probably easiest to use something like a user defined graph in
routers2.cgi to do this.  You can also do this with some pretty
straighforward CDEFs in rrdtool diretcly.

Paul

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