IANA-MAU-MIB

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsIANA-MAU-MIB

Organization: IANA

Last Updated: 2024-04-02

Category: Network Interfaces, Textual Conventions and Registries

Description: Defines dot3MauType object identities and textual conventions for Ethernet medium attachment unit (MAU) types used in the MAU-MIB.

IPNetwork Monitor uses several OIDs from this MIB in network discovery and polling the applicable devices. Start monitoring IANA-MAU-MIB with a free 30-day trial of IPNetwork Monitor.

What Is IANA-MAU-MIB?

IANA-MAU-MIB is an IETF/IANA-maintained companion module to the standard MAU-MIB, defining dot3MauType object identities and textual conventions (IANAifMauListBits, IANAifMauMediaAvailable, IANAifMauAutoNegCapBits, IANAifJackType) that enumerate Ethernet medium attachment unit (MAU) types, media availability states, auto-negotiation capability bits, and jack types. It contains no operational data objects itself; it exists purely to standardize the enumerated values used by the MAU-MIB's ifMauTypeListBits, ifMauMediaAvailable, ifMauAutoNegCapabilityBits/ifMauAutoNegCapAdvertisedBits/ifMauAutoNegCapReceivedBits, and ifJackType objects. Because it is a shared textual-convention module, it has no direct hardware/software status monitoring role of its own, but it underpins how the MAU-MIB reports physical-layer link type and auto-negotiation status across virtually all Ethernet-capable devices. It is a hard dependency of the standard MAU-MIB (RFC 4836) and any vendor MIB that reuses its conventions. It applies generically to any Ethernet interface hardware on any managed network device, since MAU type identification is a universal Ethernet management need. Engineers can download the IANA-MAU-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in IANA-MAU-MIB. 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, not tied to a specific manufacturer
  • any Ethernet-capable network device

Monitoring Examples

This is a textual-convention module with no runtime data objects (sample_objects is empty), so there is no concrete monitoring scenario against it directly; it is imported by the standard MAU-MIB to give meaning to values reported for objects like ifMauTypeListBits and ifJackType on real Ethernet interfaces.

Imported Objects

From SNMPv2-SMI

MODULE-IDENTITY
OBJECT-IDENTITY
mib-2

From SNMPv2-TC

TEXTUAL-CONVENTION
OIDs

RFC description

IANA standard MIB defining MAU (Medium Attachment Unit) types and textual conventions for IEEE 802.3 Ethernet physical layer devices (RFC 4836).

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Download IANA-MAU-MIB