All MIBs › DOT3-EPON-MIB › dot3EponFecUncorrectableBlocks
dot3EponFecUncorrectableBlocks
Module: DOT3-EPON-MIB
OID (symbolic): DOT3-EPON-MIB::dot3EponFecUncorrectableBlocks
OID (numeric): 1.3.6.1.2.1.155.1.3.1.1.5
Node type: OBJECT-TYPE
Type: Counter64
Access: read-only
Description: For 10PASS-TS, 2BASE-TL, and 1000BASE-PX PHYs, it is a count of uncorrectable FEC blocks. This counter will not increment for other PHY Types. Increment the counter by one for each FEC block that is determined to be uncorrectable by the FEC function in the PHY. This object is applicable for an OLT and an ONU. At the OLT, it has a distinct value for each virtual interface. Discontinuities of this counter can occur at re-initialization of the management system and at other times, as indicated by the value of the ifCounterDiscontinuityTime object of the Interface MIB module.
What is dot3EponFecUncorrectableBlocks?
This counts FEC blocks the PHY determined were uncorrectable, i.e. data loss that FEC couldn't recover; it stays at zero when FEC receive is disabled. Any nonzero, growing count here means real data corruption is getting through despite error correction and warrants investigating the optical link.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.2.1.155.1.3.1.1.5 snmpwalk -v2c -c public <target> DOT3-EPON-MIB::dot3EponFecUncorrectableBlocks
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.2.1.155.1.3.1.1.5.1 snmpget -v2c -c public <target> DOT3-EPON-MIB::dot3EponFecUncorrectableBlocks.1
Start monitoring EPON OLT/ONU (802.3ah EPON MPCP, vendor-neutral IEEE standard) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the DOT3-EPON-MIB::dot3EponFecUncorrectableBlocks OID value, configure state conditions and alerts, and monitor any EPON OLT/ONU (802.3ah EPON MPCP, vendor-neutral IEEE standard) from a single console.
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 |
| 1.3.6.1.2 | mgmt | AXON-MIB |
| 1.3.6.1.2.1 | mib_2 | AXON-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.2.1.155 | dot3EponMIB | DOT3-EPON-MIB |
| 1.3.6.1.2.1.155.1 | dot3EponObjects | DOT3-EPON-MIB |
| 1.3.6.1.2.1.155.1.3 | dot3EponFecObjects | DOT3-EPON-MIB |
| 1.3.6.1.2.1.155.1.3.1 | dot3EponFecTable | DOT3-EPON-MIB |
| 1.3.6.1.2.1.155.1.3.1.1 | dot3EponFecEntry | DOT3-EPON-MIB |
| 1.3.6.1.2.1.155.1.3.1.1.5 | dot3EponFecUncorrectableBlocks | DOT3-EPON-MIB |