Cisco SRST User Guide - Page 45

Chapter 1 Cisco SRST SNMP MIB Support Figure 1-4 Internet MIB Hierarchy unnamed Internet MIB Hierarchy CCITT 0 iso 1 joint ISO/CCITT 2 org 3 dod 6 internet 1 directory 1 mgmt 2 experimental 3 private 4 mib 1 S1202a 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. OL-7959-01 Cisco SRST SNMP MIB Release 3.4 Guide 1-31