CISCO-OTN-IF-MIB :: coiIfControllerPreFECBERMantissa

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCISCO-OTN-IF-MIBcoiIfControllerPreFECBERMantissa

coiIfControllerPreFECBERMantissa

Module: CISCO-OTN-IF-MIB

OID (symbolic): CISCO-OTN-IF-MIB::coiIfControllerPreFECBERMantissa

OID (numeric): 1.3.6.1.4.1.9.9.639.1.1.1.1.10

Node type: OBJECT-TYPE

Type: Integer32

Access: read-only

Description: This object gives the mantissa part of the Pre FEC BER or correctable BER at any instance of time. It is represented in one hundreths of a unit.The exponent part is defined in coiIfControllerPreFECBERExponent

Pre FEC BER is the BER of the signal before it undergoes the FEC algorithm. FEC will correct errors upto a certain Pre FEC BER beyond which the signal starts becoming uncorrectable. Knowing the Pre FEC BER helps monitor system health. Pre FEC BER is expressed in Scientific E notation with two decimal places

Example: The value 235 represents the mantissa of 2.35

What is coiIfControllerPreFECBERMantissa?

Reports the mantissa (in hundredths) of the pre-FEC bit error rate measured before error correction is applied, paired with an exponent value to give the full BER.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.9.9.639.1.1.1.1.10
snmpwalk -v2c -c public <target> CISCO-OTN-IF-MIB::coiIfControllerPreFECBERMantissa

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.9.9.639.1.1.1.1.10.1
snmpget -v2c -c public <target> CISCO-OTN-IF-MIB::coiIfControllerPreFECBERMantissa.1

Start monitoring Cisco DWDM/OTN optical transport platforms with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CISCO-OTN-IF-MIB::coiIfControllerPreFECBERMantissa OID value, configure state conditions and alerts, and monitor any Cisco DWDM/OTN optical transport platforms from a single console.

OID Breakdown

Upper-level ancestors (8 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.9ciscoCAT2600-MIB
1.3.6.1.4.1.9.9ciscoMgmtCISCO-SMI
Numeric OIDNameModule
1.3.6.1.4.1.9.9.639ciscoOtnIfMIBCISCO-OTN-IF-MIB
1.3.6.1.4.1.9.9.639.1ciscoOtnIfMIBObjectsCISCO-OTN-IF-MIB
1.3.6.1.4.1.9.9.639.1.1coiDwdmInterfaceCISCO-OTN-IF-MIB
1.3.6.1.4.1.9.9.639.1.1.1coiIfControllerTableCISCO-OTN-IF-MIB
1.3.6.1.4.1.9.9.639.1.1.1.1coiIfControllerEntryCISCO-OTN-IF-MIB
1.3.6.1.4.1.9.9.639.1.1.1.1.10coiIfControllerPreFECBERMantissaCISCO-OTN-IF-MIB