SNMP trap/probe – with or without the dot in the OID?


I was setting up some UPS monitoring at a costumer, and i got into a “discusison” with a collegaue about the first dot in a OID. We were discussing whether or not you need the dot before the first number when creating monitors/rules in SCOM 2012.

We went ahead and created two simple monitors – one with the dot and one without:

UPS Battery Temperature:



UPS Battery Temperature – WITHOUT DOT:


I faked a temperature alert and i got:



I got two alerts! So actually, apparently it doesn’t make a living difference if you use the dot or not. However, I do recommend using the dot, as the dot is always listed in the MIB.

Happy monitoring your network equipment with or without dotting!

Comments (2):

  1. Ricardo says:

    Hi Michael,

    How do you add those UID’s?
    Is it a SNMP monitor or rule? Trab or Probe?

    I have a NAS and have only ICMP data and would like to add CPU and memory (I have OID’s list) but so far nothing from NAS


  2. Sulfizz says:

    Is that a SNMP monitor or rule? Trab or Probe?, Can you please give an overview on this

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