[mrtg] Re: using MRTG to graph cablemodem

[Daniel R . Kilbourne]

Here is what works for me:


WorkDir: /mrtg/httpd/html/MRTG/cable/michigan
Options[^]: absolute, gauge, nopercent,growright

Title[snr-c300]: Michigan uBR SNR for C3/0 u0 (snr * 10)
PageTop[snr-c300]: Michigan uBR SNR for C3/0 u0 (snr * 10)
Target[snr-c300]: 1.3.6.1.2.1.10.127.1.1.4.1.5.9&1.3.6.1.2.1.10.127.1.1.4.1.5.9:string at ip.address.of.ubr
Maxbytes[snr-c300]: 400
ShortLegend[snr-c300]: snr (* 10)
YLegend[snr-c300]: snr (* 10)
Legend1[snr-c300]: snr (* 10)
Legend2[snr-c300]: snr (* 10)
Unscaled[snr-c300]: dwmy

since the number returned is xx.x , I multiply by 10 before graphing. Let me know if you need more.





On Fri, Oct 27, 2000 at 03:16:29PM +0200, Roman Hochuli spake:

> 
> Hello List
> 
> I am trying to graph the SignalNoiseRatio of DOCSIS Cablemodems.
> 
> My problem is the values returned are as shown below like '37.6 dB'.
> MRTG seems to have trouble with the characters in this string. Am I
> right with this...? Or is there somebody who is already doing this...?
> 
> Is the only possibility to cut off the ' dB' with writing an external
> measuring software which gives the numbers back to mrtg...?
> 
> Thanks for you inputs.
> 
> > [garfield at lab garfield]$ snmpget -m all elsa-router public docsIfSigQSignalNoise.3 >    docsIfCmStatusTxPower.2
> > > transmission.docsIfMib.docsIfMibObjects.docsIfBaseObjects.
> >    docsIfSignalQualityTable.docsIfSignalQualityEntry.docsIfSigQSignalNoise.3 = 37.6 dB
> > transmission.docsIfMib.docsIfMibObjects.docsIfCmObjects.
> >    docsIfCmStatusTable.docsIfCmStatusEntry.docsIfCmStatusTxPower.2 = 29.5 dBmV
> 
> --snip
> ### Interface 6 >> Descr: 'SignalNoiseRatio' | Name: 'Signal-Noise
> Ratio' | Ip: '' | Eth: '' ###
> 
> Target[elsa-router.cablelab.gpstechnik.ch_6]:
> docsIfSigQSignalNoise.3&docsIfCmStatusTxPower.2:public at elsa-router.cablelab.gpstech
> nik.ch:::::2
> MaxBytes[elsa-router.cablelab.gpstechnik.ch_6]: 45
> Title[elsa-router.cablelab.gpstechnik.ch_6]: Traffic Analysis for 6 --
> Options[elsa-router.cablelab.gpstechnik.ch_6]: gauge
> PageTop[elsa-router.cablelab.gpstechnik.ch_6]: <H1>Traffic Analysis for
> 6 -- </H1>
>  <TABLE>
>    <TR><TD>System:</TD>     <TD> in </TD></TR>
>    <TR><TD>Maintainer:</TD> <TD></TD></TR>
>    <TR><TD>Description:</TD><TD>Signal-Noise Ratio  </TD></TR>
>    <TR><TD>ifType:</TD>     <TD>CATV Signal-Noise Ratio </TD></TR>
>    <TR><TD>ifName:</TD>     <TD>Signal-Noise Ratio</TD></TR>
>    <TR><TD>Max Speed:</TD>  <TD>45 dbmV</TD></TR>
>  </TABLE>
> --snap
> 
> 
> -- 
> Kind regards,
> Roman Hochuli
> 
> GPS-Technik AG
> Zürcherstrasse 137
> 8952 Schlieren
> Switzerland
> Tel +41-1-7329977
> Fax +41-1-7311840
> 
> --
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-- 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Daniel R. Kilbourne
daniel.kilbourne at voyager.net
Voyager.net Network Engineer

^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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