Re: [Devmon] T or even P bits speed output in 'home made'-cisco-n7000 switch template

[W.J.M. N. <Wim...@nl...>]

Hello Peter,

> Until now I checked and reproduced the error on two similar RHEL6 servers:
>
> -both vm's
> -Xymon version *Xymon 4.3.27-4.el6.terabithia
> <http://xymon.sourceforge.net/>*
>
> Perl v5.10.1
>
> net-snmp-libs-5.5-57.el6_8.1.x86_64
> net-snmp-5.5-57.el6_8.1.x86_64
> net-snmp-utils-5.5-57.el6_8.1.x86_64
> perl-SNMP_Session-1.12-4.el6.noarch
> rrdtool-1.5.5-1.1.el6.x86_64
>
> -devmon: I tried two versions. One old version  $Id: README 96 2008-12-07
> 20:01:21Z buchanmilne $ and the newest from svn://
> svn.code.sf.net/p/devmon/code/trunk but the behaviour is the same for both.
> Spikey to Tb of Pb :-(
>
> A script that queries the device showed no problem. So it suspect the
> problem to be somewhere near the integration in Xymon and rrdtool, I think.
>
Do both vm's have a similar list of interfaces, that is with interfaces 
which occur two times in the list? Are those interfaces also visible in 
twofold in the CLI?

My guess is that the two occurrences of an interface causes those spikes. 
If there is no other way to suppress those additional interfaces, and if 
the octet-counters for those additional (dummy) interfaces are always zero, 
the following might help:

---exceptions ---
<OctetOut> : only : 0

in which <OctetOut> is the name variable in the template containing the 
output octet counter. This variable should be used in the TABLE as well. If 
it works, it suppresses the lines in the table in which the output octet 
counter is zero. Thus it should suppress the second occurrence of 
interfaces. It is however not a nice solution.

Regards,
   Wim Nelis.