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cmEthernetNetPortHistoryTemp
Module: CM-PERFORMANCE-MIB
OID (symbolic): CM-PERFORMANCE-MIB::cmEthernetNetPortHistoryTemp
OID (numeric): 1.3.6.1.4.1.2544.1.12.5.1.6.1.40
Node type: OBJECT-TYPE
Type: Integer32
Access: read-only
Description: The temperature of the physical layer when media type is fiber.
What is cmEthernetNetPortHistoryTemp?
This Integer32 value is the temperature of the physical layer, applicable only when the port media is fiber. An admin watches it because rising optical-module temperature, independent of ambient conditions, often precedes a hard optical failure. If cmEthernetNetPortHistoryTemp on network (uplink) port 5 reads 56 C at the most recent completed bin while nearby ports of the same type run noticeably cooler, an operator would flag that specific module for airflow or replacement checks.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.2544.1.12.5.1.6.1.40 snmpwalk -v2c -c public <target> CM-PERFORMANCE-MIB::cmEthernetNetPortHistoryTemp
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.2544.1.12.5.1.6.1.40.1 snmpget -v2c -c public <target> CM-PERFORMANCE-MIB::cmEthernetNetPortHistoryTemp.1
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OID Breakdown
Upper-level ancestors (9 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.2544 | advaMIB | ADVA-MIB |
| 1.3.6.1.4.1.2544.1 | products | ADVA-MIB |
| 1.3.6.1.4.1.2544.1.12 | fsp150cm | ADVA-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.2544.1.12.5 | cmPerformanceMIB | CM-PERFORMANCE-MIB |
| 1.3.6.1.4.1.2544.1.12.5.1 | cmPerfObjects | CM-PERFORMANCE-MIB |
| 1.3.6.1.4.1.2544.1.12.5.1.6 | cmEthernetNetPortHistoryTable | CM-PERFORMANCE-MIB |
| 1.3.6.1.4.1.2544.1.12.5.1.6.1 | cmEthernetNetPortHistoryEntry | CM-PERFORMANCE-MIB |
| 1.3.6.1.4.1.2544.1.12.5.1.6.1.40 | cmEthernetNetPortHistoryTemp | CM-PERFORMANCE-MIB |