[rrd-users] Fwd: Re: Aggregated Graph gives blank space when one of the interfaces does not give response

[Firdous Saleheen]

Hi Martin,
thanks for your prompt response!

the syntax I used here for aggregation is just the way I found it on mrtg-reference.

the suggestion you gave would really help me if you can give a clearer idea about in which part of mrtg .cfg file or in rrdtool I have to make change. or it may be an issue of mrtg itself. then I will post the problem to mrtg site.

I am a newbee in the mrtg-rrdtool arena. your help would be higly appreciated.

Thanking again

Firdous Saleheen

From: Martin Sperl <rrdtool at martin.sperl.org>
To: Firdous Saleheen <saleheen.firdous at mango.com.bd>
Cc: rrd-users at lists.oetiker.ch
Sent: Sun, 12 Apr 2009 16:23:06 +0600 (BDT)
Subject: Re: [rrd-users] Aggregated Graph gives blank space when one of the interfaces does not give response

Hi Firdous!

When using rrdtool CDEFS directly: use ADDNAN instead of + in your CDEF 
- this will ignore the NAN
As for how this works with MRTG - no idea...

Martin

Firdous Saleheen wrote:
> Hi, 
> Anyone please raise hand on the issue.
>
> Cheers,
>
> FIRDOUS SALEHEEN
>
>
> -----Original Message-----
> From: Firdous Saleheen [mailto:saleheen.firdous at mango.com.bd] 
> Sent: Friday, April 10, 2009 3:08 PM
> To: 'rrd-users at lists.oetiker.ch'
> Subject: Aggregated Graph gives blank space when one of the interfaces does
> not give response
>
> Hi,
>
> We graph our three STM-1 uplink with MRTG-RRD: singtel, tis and singtel-ctg.
> We also graph submarine= singtel+tis+singtel-ctg writing this line in cfg
> file :
> Target[submarine]: 24:user at ip1:::::3 + 33:user at ip1:::::3 +
> 17:user at ip2:::::3
>
>
> It happened that there occurred a flap in our transmission line and we are
> unable to get response from one of our devices which is connected to
> singtel-ctg. In that instance there is a blank space in submarine graph
> while the other two uplinks are live.
>
> Can anyone please point where the problem is ?
>
> I am attaching log here. And the version and platform are as follows:
>
>
> MRTG version : 2.16.2
> RRDtool version : 1.2.27
> SNMP version : 3
> Platform : CentOS release 5.2 (Final)
>
>
> FIRDOUS SALEHEEN
>
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