TN-POWER-SUPPLY-MIB

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Organization: Transition Networks, Inc.

Last Updated: 2013-03-12

Category: Environment and Power, Transition Networks Media Converters

Description: Manages Transition Networks power supply unit status, voltage, and redundancy state.

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 TN-POWER-SUPPLY-MIB?

TN-POWER-SUPPLY-MIB is a Transition Networks enterprise MIB dedicated to monitoring power supply units in its managed switches and media converters. It exposes tnPowerSupplyTable with per-supply presence, power type, powered state, fan RPM, and temperature, plus environmental-monitoring notifications. It is squarely a hardware-health MIB: tnPowerSupplyPresent versus tnPowerSupplyPowered reveals a physically installed but failed power supply, tnPowerSupplyFanRPM dropping toward zero signals fan failure, and tnPowerSupplyTemperature rising indicates a cooling problem, with tnPowerSupplyEnvMonNotifications alerting on these conditions. It complements the ENTITY-MIB physical-entity model for identifying which redundant power supply slot is affected. It is deployed on Transition Networks managed switches or media converters with dual/redundant power supplies in network closets or industrial cabinets, making TN-POWER-SUPPLY-MIB SNMP monitoring standard practice for redundant power supply health checks.

IPNetwork Monitor allows you to monitor SNMP objects defined in TN-POWER-SUPPLY-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

Transition Networks managed switch/media converter with dual/redundant power supplies

Monitoring Examples

An admin would poll tnPowerSupplyTable (indexed by tnPowerSupplyIndex) and check tnPowerSupplyPresent against tnPowerSupplyPowered to detect a power supply that's installed but not delivering power — a failed unit in a redundant pair. A falling tnPowerSupplyFanRPM paired with a rising tnPowerSupplyTemperature would indicate an imminent overheating condition worth acting on before tnPowerSupplyEnvMonNotifications escalates it further. tnPowerSupplyPowerType would confirm the supply type matches what's expected for the deployment (AC vs DC).

What Can Be Monitored

power supply presence
power supply type
powered on/off state
fan RPM
internal temperature
environmental fault notifications

Imported Objects

From SNMPv2-SMI

Counter32
Unsigned32

From SNMPv2-TC

TruthValue

From TRANSITION-SMI

tnProducts

OBJECT-IDENTITY

How to Use in IPNetwork Monitor

Example using tnPowerSupplyTemperature OID:

Select a Transition Networks managed switch/media converter with dual/redundant power supplie (PSU presence/fan-RPM/temperature status) 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 tnPowerSupplyTemperature into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. Indicates the temperature of the power-supply. 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 the reported value exceeds the level expected for healthy operation, since sustained high temperature often precedes thermal shutdown or hardware degradation. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
tnPowerSupply	1.3.6.1.4.1.868.2.5.20			This mib is related to the manamgement of power-supply.
tnPowerSupplyEnvMonNotifications	1.3.6.1.4.1.868.2.5.20.1
NTF tnPowerSupplyEnvMonFailureNotif	1.3.6.1.4.1.868.2.5.20.1.1			A tnPowerSupplyEnvMonFailureNotif will be sent when the power-supply is not functioning properly.
NTF tnPowerSupplyEnvMonTemperatureNotif	1.3.6.1.4.1.868.2.5.20.1.2			A tnPowerSupplyEnvMonTemperatureNotif will be sent when the temperature of the power-supply is out of controlled range.
tnPowerSupplyMIBObject	1.3.6.1.4.1.868.2.5.20.2
tnPowerSupplyTable	1.3.6.1.4.1.868.2.5.20.2.1		not-accessible	This table defines the managment of power-supply.
tnPowerSupplyEntry	1.3.6.1.4.1.868.2.5.20.2.1.1		not-accessible	Indicates the entry of power-supply table.
U32 tnPowerSupplyIndex	1.3.6.1.4.1.868.2.5.20.2.1.1.1	Unsigned32	not-accessible	Indicates the index of table entry.
T/F tnPowerSupplyPresent	1.3.6.1.4.1.868.2.5.20.2.1.1.2	TruthValue	read-only	Indicates the current choice of power-supply.
TNP tnPowerSupplyPowerType	1.3.6.1.4.1.868.2.5.20.2.1.1.3	TnPowerSupplyPowerType	read-only	Indicates the type of power-supply.
T/F tnPowerSupplyPowered	1.3.6.1.4.1.868.2.5.20.2.1.1.4	TruthValue	read-only	Indicates power-supply is on or off. In this case, true represents powered-on, and otherwise, powered-off.
U32 tnPowerSupplyFanRPM	1.3.6.1.4.1.868.2.5.20.2.1.1.5	Unsigned32	read-only	Indicates the RPM of fan.
INT tnPowerSupplyTemperatureEx	1.3.6.1.4.1.868.2.5.20.2.1.1.6	INTEGER	read-only	Indicates the temperature of the power-supply.
tnPowerSupplyMibConformance	1.3.6.1.4.1.868.2.5.20.3

RFC description

Transition Networks power supply management MIB for AC/DC power monitoring.

Start monitoring Transition Networks managed switch/media converter with dual/redundant power supplies (PSU presence/fan-RPM/temperature 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.

Download TN-POWER-SUPPLY-MIB