All MIBs › TPLINK-DDMBIASCURTHRESHOLD-MIB
Organization: TPLINK
Last Updated: 2009-08-27
Category: Optical Transceiver Diagnostics
Description:
Manages TP-Link switch DDM optical transceiver bias current alarm and warning threshold configuration.
Imported Objects
From RFC1213-MIB
| ifIndex |
From SNMPv2-SMI
| MODULE-IDENTITY | |
| OBJECT-TYPE |
From SNMPv2-TC
| DisplayString |
From TPLINK-DDMMANAGE-MIB
| tplinkDdmManageMIBObjects | OBJECT-IDENTITY |
What Is TPLINK-DDMBIASCURTHRESHOLD-MIB?
TPLINK-DDMBIASCURTHRESHOLD-MIB is a TP-Link proprietary module for configuring Digital Diagnostic Monitoring (DDM) bias current alarm and warning thresholds on optical SFP/transceiver modules installed in their switches. It exposes per-port or per-transceiver threshold configuration for laser bias current, defining high/low alarm and warning boundaries used to detect optical transceiver degradation. Its monitoring purpose is explicitly hardware health oriented: bias current is a key optical transceiver health indicator, and threshold breaches can signal an aging or failing laser diode before a complete transceiver failure causes a link outage. It depends on the broader TP-Link DDM/transceiver diagnostic MIB family, which reports the actual measured bias current values against thresholds defined here. It is deployed on TP-Link switches equipped with SFP/SFP+ optical transceivers where proactive optical health monitoring is desired to preempt link failures. Engineers can download the TPLINK-DDMBIASCURTHRESHOLD-MIB file directly to load it into their MIB browser.
IPNetwork Monitor allows you to monitor SNMP objects defined in TPLINK-DDMBIASCURTHRESHOLD-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
- TP-Link managed switch with SFP/optical transceivers
Monitoring Examples
No sample object or table names were provided in the source for this module, so a concrete polling example naming specific objects cannot be honestly constructed here; in practice an administrator would be expected to poll per-transceiver bias current high/low alarm and warning threshold objects and compare them against live measured bias current from a companion DDM MIB, watching for a transceiver whose measured bias current approaches its configured warning threshold as an early sign of laser degradation.
OIDs
| OID symbolic | OID numeric | Type | Access | Description |
|---|---|---|---|---|
| ddmBiasCurThreshold | 1.3.6.1.4.1.11863.6.96.1.4 | The config of DDM bias current threshold. | ||
| ddmBiasCurThresholdTable | 1.3.6.1.4.1.11863.6.96.1.4.1 | not-accessible | A table that is used to configure the DDM Bias Current Threshold for specific ports on the Switch. | |
| ddmBiasCurThresholdEntry | 1.3.6.1.4.1.11863.6.96.1.4.1.1 | not-accessible | A list of information for every port. | |
| STR ddmBiasCurThresholdPort | 1.3.6.1.4.1.11863.6.96.1.4.1.1.1 | DisplayString | read-only | This object indicates the port number. |
| OCT ddmBiasCurThresholdHighAlarm | 1.3.6.1.4.1.11863.6.96.1.4.1.1.2 | OCTET STRING | read-write | This object indicates the highest threshold for the alarm. |
| OCT ddmBiasCurThresholdLowAlarm | 1.3.6.1.4.1.11863.6.96.1.4.1.1.3 | OCTET STRING | read-write | This object indicates the lowest threshold for the alarm. |
| OCT ddmBiasCurThresholdHighWarn | 1.3.6.1.4.1.11863.6.96.1.4.1.1.4 | OCTET STRING | read-write | This object indicates the highest threshold for the warning. |
| OCT ddmBiasCurThresholdLowWarn | 1.3.6.1.4.1.11863.6.96.1.4.1.1.5 | OCTET STRING | read-write | This object indicates the lowest threshold for the warning. |
| OCT ddmBiasCurThresholdPortLAG | 1.3.6.1.4.1.11863.6.96.1.4.1.1.6 | OCTET STRING | read-only | This object indicates the lag number of the port. |
RFC description
Manages DDM bias current thresholds and optical transceiver alarms on TP-Link ports.
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