AT-PTP-MIB

MIB Reference — IPNetwork Monitor · Updated September 09, 2026

All MIBsAT-PTP-MIB

Organization: Allied Telesis, Inc.

Last Updated: 2017-01-23

Category: Vendor: Allied Telesis

Description: Manages IEEE 1588 Precision Time Protocol (PTP) clock configuration, port states, and synchronization quality on Allied Telesis devices.

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What Is AT-PTP-MIB?

AT-PTP-MIB is an Allied Telesis proprietary MIB defining managed objects for the IEEE 1588v2 Precision Time Protocol (PTP) module on their networking devices. PTP is used to achieve sub-microsecond clock synchronization across a network, so this MIB exposes clock configuration (e.g., PTP profile, domain, and mode settings), port states (master/slave/passive roles per PTP port), and synchronization quality metrics such as offset or clock accuracy indicators. This makes it directly a monitoring MIB for a critical piece of device software/hardware status: the accuracy and stability of the device's time synchronization, since PTP faults directly translate into timing errors that can disrupt time-sensitive applications like mobile backhaul or industrial control. It implements the IEEE 1588v2 standard, so its object model is conceptually dependent on that specification even though expressed as a vendor MIB. It is typically deployed in Allied Telesis switches/routers used in mobile backhaul, financial trading, or industrial networks where precise time synchronization between network elements is required. Network engineers evaluating or troubleshooting this functionality can download the AT-PTP-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in AT-PTP-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

  • Allied Telesis switch/router (IEEE 1588 PTP-capable)

Monitoring Examples

No sample objects were provided for this module, so specific table names cannot be cited, but typically an operator would poll per-port PTP state (master/slave/passive) and clock synchronization/offset quality objects to confirm a device's clock remains locked to its grandmaster, investigating a port that unexpectedly reverts to passive or shows a growing offset as a sign of a timing fault.

What Can Be Monitored

  • PTP port role/state (unconfirmed, no sample objects available)
  • clock synchronization quality/offset (unconfirmed)
Imported Objects

From AT-SMI-MIB

modulesOBJECT-IDENTITY

From IF-MIB

InterfaceIndexOrZero

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Counter64
Gauge32
Integer32
MODULE-IDENTITY
OBJECT-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

AutonomousType
DisplayString
TEXTUAL-CONVENTION
TruthValue
OIDs

RFC description

Allied Telesis IEEE 1588v2 Precision Time Protocol management for clock synchronization on network devices.

Start monitoring Allied Telesis managed switches and routers with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download AT-PTP-MIB