Connected: An Internet Encyclopedia
2.1. Structure of Management Information
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2.1. Structure of Management Information
2.1. Structure of Management Information
Management information is viewed as a collection of managed
objects, residing in a virtual information store, termed the
Management Information Base (MIB). Collections of related
objects are defined in MIB modules. These modules are written
using a subset of OSI's Abstract Syntax Notation One (ASN.1)
[5]. It is the purpose of the Structure of Management
Information for SNMPv2 document [6] to define that subset.
The SMI is divided into three parts: module definitions,
object definitions, and, trap definitions.
- Module definitions are used when describing information
modules. An ASN.1 macro, MODULE-IDENTITY, is used to
concisely convey the semantics of an information module.
- Object definitions are used when describing managed
objects. An ASN.1 macro, OBJECT-TYPE, is used to
concisely convey the syntax and semantics of a managed
object.
- Notification definitions are used when describing
unsolicited transmissions of management information. An
ASN.1 macro, NOTIFICATION-TYPE, is used to concisely
convey the syntax and semantics of a notification.
Next: 2.2. Textual Conventions
Connected: An Internet Encyclopedia
2.1. Structure of Management Information