[mrtg] Re: target OID value

[Koelstra, J. (Jan)]

> it is reference the value that is entered for the 'Target' OID.
> it seems that a number needs to appended to the OID as would be reported by the MIB browser

Since MRTG does an snmpget you have to use an oid that returns a value. Usualy this is the basic oid with an instance number added to it.
These instance numbers can usualy be found little higher in the mib-tree.

> could not find specific reference to this on mrtg site but examples suggest that this should be a .0
> this would not work, with MRTG erroring as it tries to collect the data
> i found other examples which used as .1 and lo and behold this works ok !

Depending on manufacturer instance numbers can be any number, but mostly when a system is brought up the first instance within an oid is 0 or 1. Some manufacturers seem to start at random numbers which can even change after a restart.

> the purpose of this post is to determine what 'science' there is to the value that needs to be appended to be OID.
> my first thought was that might reference the 'instance' of the object (eg CPU number) being queried ??

No Science. The only way to find out wich oids are available on a system is by using a MIB browser.

HTH,

Jan.

_________________________________________________________

Het ministerie van Sociale Zaken en Werkgelegenheid sluit elke aansprakelijkheid uit in verband met het niet juist, onvolledig of niet tijdig overkomen van de informatie in deze e-mail.
Aan dit bericht kunnen geen rechten worden ontleend.

Dit bericht is alleen bestemd voor de geadresseerde. Indien dit bericht niet voor u bestemd is, verzoeken wij u dit onmiddellijk aan ons te melden en de inhoud van dit bericht te vernietigen.
_________________________________________________________

The ministry of Social Affairs and Employment is not liable for any incorrect or incomplete transmission of the information in this e-mail or for any delay in its receipt.
This message shall not constitute any obligations.

This message is intended solely for the addressee.
If you have received this message in error, please inform us immediately and delete its content.
_________________________________________________________

--
Unsubscribe mailto:mrtg-request at list.ee.ethz.ch?subject=unsubscribe
Archive     http://lists.ee.ethz.ch/mrtg
FAQ         http://faq.mrtg.org    Homepage     http://www.mrtg.org
WebAdmin    http://lists.ee.ethz.ch/lsg2.cgi