All MIBs › RFC1212
Category: SNMP Framework, Textual Conventions and Registries
Description:
Defines the OBJECT-TYPE macro format for writing concise MIB definitions, standardizing the SYNTAX, ACCESS, STATUS, and DESCRIPTION clauses used in SNMPv1 MIB modules.
What Is RFC1212?
RFC1212 is not a managed-object MIB at all but the foundational SNMPv1 specification defining the OBJECT-TYPE macro — the syntax template with SYNTAX, ACCESS, STATUS, and DESCRIPTION clauses that every other classic MIB module uses to declare its managed objects. It exposes no data categories of its own, such as interfaces, environment, or performance objects, because it is purely a macro/language definition used by MIB authors and compilers. Consequently it has no role in monitoring hardware or software status directly; it underlies the ability of virtually every other MIB to define such status objects in the first place. Its dependency relationship is inverted from most MIBs: nearly all classic SNMPv1 MIB modules import and depend on the OBJECT-TYPE macro defined here rather than the reverse. It is not deployed on any device per se; it is a specification imported by MIB source files and processed by MIB compilers/tools wherever SNMP MIBs are authored or parsed. Those looking to download the rfc-1212 MIB definition will find it bundled with virtually every MIB compiler and toolchain, including PySMI, as a prerequisite for parsing classic SNMPv1 modules.
IPNetwork Monitor allows you to monitor SNMP objects defined in RFC1212. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.
Supported Devices
- vendor-neutral, standards-based MIB specification, not tied to any device — used by MIB authors/compilers
Monitoring Examples
RFC1212 defines the OBJECT-TYPE macro itself rather than any concrete managed objects or tables, so there is no device-monitoring scenario to describe; it is a syntax specification consumed by MIB-authoring tools and compilers (such as PySMI) rather than by an SNMP agent.
RFC description
Concise MIB definition format (RFC 1212) specifying the SMIv1 macro syntax for defining managed objects in SNMP MIBs.
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