All MIBs › CASCADE-MIB › pportFibreType
pportFibreType
Module: CASCADE-MIB
OID (symbolic): CASCADE-MIB::pportFibreType
OID (numeric): 1.3.6.1.4.1.277.1.4.2.1.76
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-only
Description: The type of fibre connected to the ATM-IWU. Its type determines the maximum transmission distance. 1-port ATM-IWU STM-1/STS-3c card -------------------------------- 4 - multimode fibre (maximum transmission distance approx. 2 km) 2 - single mode fibre short haul (maximum transmission distance approx. 20 km)
What is pportFibreType?
This reports the type of fiber optic transceiver detected on this port's 1-port ATM-IWU STM-1/STS-3c card, multimode or single-mode short-haul, which per the description sets the maximum transmission distance to roughly 2 km or 20 km respectively. Because it is read-only and hardware-detected, this value tells you the physical reach limit this specific port is actually capable of, which matters directly when planning or troubleshooting a long fiber run that might be exceeding the transceiver's rated distance. A link on this port failing intermittently over a 15 km fiber run when pportFibreType reports multimode (2 km max) would explain the failure as exceeding the optics' distance rating rather than a configuration problem.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.277.1.4.2.1.76 snmpwalk -v2c -c public <target> CASCADE-MIB::pportFibreType
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.277.1.4.2.1.76.1 snmpget -v2c -c public <target> CASCADE-MIB::pportFibreType.1
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OID Breakdown
Upper-level ancestors (6 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 |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.277 | cascade | CASCADE-MIB |
| 1.3.6.1.4.1.277.1 | cascfr | CASCADE-MIB |
| 1.3.6.1.4.1.277.1.4 | pport | CASCADE-MIB |
| 1.3.6.1.4.1.277.1.4.2 | pportTable | CASCADE-MIB |
| 1.3.6.1.4.1.277.1.4.2.1 | pportEntry | CASCADE-MIB |
| 1.3.6.1.4.1.277.1.4.2.1.76 | pportFibreType | CASCADE-MIB |