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

[Martin Sperl]

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:mangouser at ip1:::::3 + 33:mangouser at ip1:::::3 +
> 17:mangouser 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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