NBS-COHERENT-MIB :: nbsCohpmCurrentMaxDGD

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › NBS-COHERENT-MIB › nbsCohpmCurrentMaxDGD

nbsCohpmCurrentMaxDGD

Module: NBS-COHERENT-MIB

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

OID (numeric): 1.3.6.1.4.1.629.242.22.3.1.36

Node type: OBJECT-TYPE

Type: Unsigned32

Access: read-only

Description: Maximum differential group delay (DGD) seen in the current interval. Unit measurement: 1 ps

Not supported value: 0xFFFFFFFF

What is nbsCohpmCurrentMaxDGD?

nbsCohpmCurrentMaxDGD is read-only and holds a live statistic for the reporting interval now in progress for the maximum differential group delay (DGD) on this coherent optical interface, i.e. how much delay skew polarization-mode dispersion has introduced between the two polarization axes of the signal; not-supported is encoded as 0xFFFFFFFF. Unit measurement: 1 ps. A sysadmin polls it to watch this metric evolve in real time during the interval still underway, and compares it against the matching nbsCohpmThresholdsMaxDGD alarm setting to see how close the link is running to its configured limit.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.629.242.22.3.1.36
snmpwalk -v2c -c public <target> NBS-COHERENT-MIB::nbsCohpmCurrentMaxDGD

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.629.242.22.3.1.36.1
snmpget -v2c -c public <target> NBS-COHERENT-MIB::nbsCohpmCurrentMaxDGD.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::nbsCohpmCurrentMaxDGD 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
1.3.6.1.4.1.629.242.22nbsCohpmCurrentGrpNBS-COHERENT-MIB
1.3.6.1.4.1.629.242.22.3nbsCohpmCurrentTableNBS-COHERENT-MIB
1.3.6.1.4.1.629.242.22.3.1nbsCohpmCurrentEntryNBS-COHERENT-MIB
1.3.6.1.4.1.629.242.22.3.1.36nbsCohpmCurrentMaxDGDNBS-COHERENT-MIB