[mrtg] Re: Doing math with Multiple SNMP OID Targets

Timothy Finkenstadt timothy at aloha.webkahuna.com
Fri Mar 16 18:51:36 MET 2001

> Title[FRC_PAR_01.SYS]: Sys Volume Used Space
> Target[FRC_PAR_01.SYS]:4096000-
> .
> :public at

Are you trying to subtract the sum of the OIDs from 4096000?  there fore:
4096000 - (oid1 + oid2) 

if so, you should be able to do the following target:

Target[FC_PAR_01.SYS]:4096000 - \\
:public at - \ at

I think this may give what you are trying to accomplish.  If not, you can
change the OIDs as you require.

best regards,


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