SNMP Reference Guide

28 Introduction
One-Based Index
When an index is one-based, counting starts at 1. One-based indexing counts
the first instance as 1, the second index as 2, and so on.
Zero-Based Index
When an index is zero-based, counting starts at 0. Zero-based indexing
counts the first instance as 0, the second index as 1, and so on.
Fields
Managed object variables contain fields. In this reference guide, managed
object variables have the following fields defined:
Name is the exact string by which the variable is known in the MIB. MIB
variables are named according to the following conventions:
• Variable names start with a lowercase letter.
• Spaces are not allowed between words in the variable name.
• Acronyms are in uppercase letters, except when an acronym is the first
word in the variable name.
• With the exception of the first letter of the variable name and acronyms,
all other words in the variable name start with capital letters.
The following variable names illustrate these conventions:
– temperatureProbeLowerCriticalThreshold
– coolingUnitIndex
– pCIDeviceSpeed
Object Identifier (OID) is the unique number assigned to an object defined
in a MIB. An OID is written as a sequence of subidentifiers in decimal
notation. Each OID in this reference guide has a prefix that identifies the
managed objects as belonging to Dell™: 1.3.6.1.4.1.674. The additional
numbers identify the MIB group and subgroup as well as the table entry
number of any variables.
For example, the OID for the temperature probe managed object table is
700.20 and the variable for the location of the temperature probe
(temperatureProbeLocationName) has an OID of 700.20.1.8. The full OIDs
for these items are 1.3.6.1.4.1.674.10892.1.700.20 for the
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