AT-SYSINFO-MIB

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsAT-SYSINFO-MIB

Organization: Allied Telesis, Inc.

Last Updated: 2012-09-21

Category: Device Management, Vendor: Allied Telesis

Description: Reports system identification information including model name, firmware version, and hardware revision on Allied Telesis devices.

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock status) 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.

What Is AT-SYSINFO-MIB?

AT-SYSINFO-MIB is an Allied Telesis proprietary MIB establishing the sysinfo subtree used to report generic system information across Allied Telesis network devices. Its defined subtree groups reveal the categories of data it covers: fan and power supply status, restart/reboot information, CPU statistics, system temperature, environmental monitoring (envMon, awpEnvMon), stacking (awpStack), and host/module identification (hostId, xem). This gives it strong hardware and software status monitoring relevance — covering fan/power supply health, CPU load, temperature, and restart history, exactly the kind of environmental and hardware-health data administrators watch for early failure warning. As a foundational system MIB it likely underpins or is referenced by other Allied Telesis product MIBs that extend these subtrees with device-specific objects. It is deployed on Allied Telesis switches and routers across enterprise and SMB network environments, and administrators commonly load it into an AT-SYSINFO-MIB MIB Browser session to walk these subtrees interactively before writing automated polling scripts.

IPNetwork Monitor allows you to monitor SNMP objects defined in AT-SYSINFO-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 x530-28GSX (2024) — full-fiber stackable Layer 2/3 switch
  • Allied Telesis SwitchBlade x908 Gen2 — current modular chassis switch

Monitoring Examples

An admin would poll objects under the fanAndPs subtree to check fan and power-supply operational state, and under sysTemperature to track the device's internal temperature against safe thresholds. The cpu subtree exposes CPU utilization objects useful for spotting a device under sustained high load, while restartGroup objects can reveal the cause or timestamp of the last reboot, helping correlate an outage with a specific event. No fully-qualified object names beyond these subtree labels were provided, so exact object identifiers cannot be cited.

What Can Be Monitored

  • fan and power supply status
  • system temperature
  • CPU utilization
  • restart/reboot history
  • environmental monitoring (envMon)
  • stacking status (awpStack)
Imported Objects

From AT-SMI-MIB

DisplayStringUnsized
atRouterOBJECT-IDENTITY

From IF-MIB

InterfaceIndex

From SNMPv2-SMI

MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DisplayString

How to Use in IPNetwork Monitor

Example using cpuUtilisationAvg OID:

Select an Allied Telesis x530/SwitchBlade x908 switch as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type cpuUtilisationAvg into the Find box to locate it in the OID tree, then select it and click OK. It reports the router's average CPU utilization since it was last restarted, as a percentage. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is an INTEGER-type OID, Value bounds is the most useful condition here — trigger an alert if CPU utilization exceeds 85%, a common warning threshold before sustained high load affects routing performance. Click Finish to create the monitor; you can adjust any parameter later.

See also: cpuUtilisationAvgLastMinute, cpuUtilisationMax

OIDs

RFC description

Allied Telesis MIB for system information including fans, power supplies, CPUs, and temperature monitoring.

Start monitoring Allied Telesis x530/SwitchBlade x908 switches 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-SYSINFO-MIB