Mib Variables; Mib Extensions (Enterprise Mibs) - Cisco 11503 - CSS Content Services Switch Administration Manual

Chapter 5 Configuring Simple Network Management Protocol (SNMP)

MIB Variables

MIB Extensions (Enterprise MIBs)

OL-5647-02
There are two types of MIB variables:
• Scalar - Variables that define an object with a single representation. This
means that the object describes a particular characteristic of the entire system.
An example of a scalar variable is SysDescr, which provides a system-wide
description of the CSS.
Tabular - Variables that define an object with multiple representations. This
•
means that the object can have different values, depending on the qualifier.
For example, one tabular object could show bytes per interface, temperature
per board, or hits per service.
As shown in Figure 5-2, a number is associated with a MIB object name. This
number is called the object identifier (OID), and it uniquely identifies the MIB
object in the MIB tree. (The dotted lines represent other branches not relevant to
this discussion.)
For example, note in Figure 5-2
which contains the MIB objects specific to the CSS, can be labeled:
iso.organization.dod.internet.private.enterprises.cisco.ciscoMgmt.
arrowpoint
or
1.3.6.1.4.1.9.9.368
The MIB tree has a special branch set aside for specific vendors to build their own
extensions; this special branch is called the Enterprise MIB branch. The CSS
MIBs are included in the following directories and ZIP files on the CSS disk:
SNMPv1 MIBs - /mibs/v1/cssmibsv1.zip
•
SNMPv2C MIBs - /mibs/v2/cssmibsv2.zip
•
The MIB files in this branch comprise the CSS Enterprise MIBs (the highlighted
MIB identifier in Figure
functional boundaries.
For a list of MIB branches under the CSS Enterprise MIB, see the
section.
Management Information Base (MIB) Overview
that the MIB object labeled arrowpoint (368),
5-2). The enterprise MIB files are categorized along
Cisco Content Services Switch Administration Guide
"CSS MIBs"
5-7