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Cisco SRST SNMP MIB Release 3.4 Guide
OL-7959-01
Chapter 1 Cisco SRST SNMP MIB Support
Internet MIB Hierarchy
Figure 1-4
Internet MIB Hierarchy
SNMP MIB
An SNMP MIB is an abstract database, that is, a conceptual specification for information that a
management application may read and modify in a certain form. This does not imply that the information
is kept in the managed system in that same form. The SNMP agent translates between the internal data
structures and formats of the managed system and the external data structures and formats defined for
the MIB.
The SNMP MIB is conceptually a tree structure with conceptual tables, described in more detail in the
following sections. Relative to this tree structure, the term “MIB” is used in two ways. In one way, it is
actually a MIB branch, usually containing information for a single aspect of technology, such as a
transmission medium or a routing protocol. A MIB used in this way is more accurately called a MIB
module, and is usually defined in a single document.
In the other way, a MIB is a collection of such branches. Such a collection of MIB branches might
comprise, for example, all of the MIB modules implemented by a given agent, or the entire collection of
MIB modules defined for SNMP.
CCITT
0
org
3
dod
6
internet
1
mgmt
2
iso
1
joint
ISO/CCITT
2
directory
1
experi-
mental
3
private
4
mib
1
S1202a
unnamed
