NBS-COHERENT-MIB :: nbsCoherentStatsMaxPDL

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

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nbsCoherentStatsMaxPDL

Module: NBS-COHERENT-MIB

OID (symbolic): NBS-COHERENT-MIB::nbsCoherentStatsMaxPDL

OID (numeric): 1.3.6.1.4.1.629.242.90.2.1.96

Node type: OBJECT-TYPE

Type: Unsigned32

Access: read-only

Description: Maximum polarization dependent loss (PDL) observed. Unit measurement: 0.1 dB

Not supported value: 0xFFFFFFFF

What is nbsCoherentStatsMaxPDL?

nbsCoherentStatsMaxPDL is read-only and holds the maximum polarization dependent loss (PDL) observed on this coherent optical interface since statistics collection last started or was cleared (nbsCoherentStatsState), i.e. how much the fiber path's attenuation varies depending on the signal's polarization state; not-supported is encoded as 0xFFFFFFFF. Unit measurement: 0.1 dB. A sysadmin treats it as a longer-run baseline for this specific optic/fiber path, useful for spotting a slow drift in link quality that a single quarterHour or twentyfourHour sample in nbsCohpmCurrentTable might not reveal.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.629.242.90.2.1.96
snmpwalk -v2c -c public <target> NBS-COHERENT-MIB::nbsCoherentStatsMaxPDL

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.629.242.90.2.1.96.1
snmpget -v2c -c public <target> NBS-COHERENT-MIB::nbsCoherentStatsMaxPDL.1

Start monitoring MRV coherent optical transport platform (CFP-based DWDM interface) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the NBS-COHERENT-MIB::nbsCoherentStatsMaxPDL OID value, configure state conditions and alerts, and monitor any MRV coherent optical transport platform (CFP-based DWDM interface) from a single console.

OID Breakdown

Upper-level ancestors (7 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
1.3.6.1.4.1.629nbaseCORE-MIB
Numeric OIDNameModule
1.3.6.1.4.1.629.242nbsCoherentMibNBS-COHERENT-MIB
1.3.6.1.4.1.629.242.90nbsCoherentStatsGrpNBS-COHERENT-MIB
1.3.6.1.4.1.629.242.90.2nbsCoherentStatsTableNBS-COHERENT-MIB
1.3.6.1.4.1.629.242.90.2.1nbsCoherentStatsEntryNBS-COHERENT-MIB
1.3.6.1.4.1.629.242.90.2.1.96nbsCoherentStatsMaxPDLNBS-COHERENT-MIB