DOCS-PNM-MIB :: docsPnmCmtsUsImpNoiseNumEvtsCnted

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

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docsPnmCmtsUsImpNoiseNumEvtsCnted

Module: DOCS-PNM-MIB

OID (symbolic): DOCS-PNM-MIB::docsPnmCmtsUsImpNoiseNumEvtsCnted

OID (numeric): 1.3.6.1.4.1.4491.2.1.27.1.3.4.1.7

Node type: OBJECT-TYPE

Type: Unsigned32

Access: read-only

Description: This attribute is used to indicate how many impulse noise events have been recorded since the enable was set to true. This value will be 1024 in steady state, after the ring buffer has filled with measurements. If the StartTriggerLevel is set to zero then the NumEventsCounted will be set to 1 when the FreeRunDuration has expired and the Enable has been internally cleared.

What is docsPnmCmtsUsImpNoiseNumEvtsCnted?

The count (0-65535) of impulse-noise events recorded since Enable was set true; this value plateaus at 1024 once the ring buffer of measurements fills, or is forced to 1 if StartTriggerLevel is zero and FreeRunDuration expires. An admin reads this to know how many discrete impulse events the current capture actually contains before pulling the detailed data file.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.27.1.3.4.1.7
snmpwalk -v2c -c public <target> DOCS-PNM-MIB::docsPnmCmtsUsImpNoiseNumEvtsCnted

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.27.1.3.4.1.7.1
snmpget -v2c -c public <target> DOCS-PNM-MIB::docsPnmCmtsUsImpNoiseNumEvtsCnted.1

Start monitoring DOCSIS 3.1 cable modem/CMTS (Proactive Network Maintenance, vendor-neutral CableLabs standard) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the DOCS-PNM-MIB::docsPnmCmtsUsImpNoiseNumEvtsCnted OID value, configure state conditions and alerts, and monitor any DOCSIS 3.1 cable modem/CMTS (Proactive Network Maintenance, vendor-neutral CableLabs standard) from a single console.

OID Breakdown

Upper-level ancestors (9 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
1.3.6.1.4.1.4491cableLabsCLAB-DEF-MIB
1.3.6.1.4.1.4491.2clabProjectCLAB-DEF-MIB
1.3.6.1.4.1.4491.2.1clabProjDocsisCLAB-DEF-MIB
Numeric OIDNameModule
1.3.6.1.4.1.4491.2.1.27docsPnmMIBDOCS-PNM-MIB
1.3.6.1.4.1.4491.2.1.27.1docsPnmMibObjectsDOCS-PNM-MIB
1.3.6.1.4.1.4491.2.1.27.1.3docsPnmCmtsObjectsDOCS-PNM-MIB
1.3.6.1.4.1.4491.2.1.27.1.3.4docsPnmCmtsUsImpNoiseTableDOCS-PNM-MIB
1.3.6.1.4.1.4491.2.1.27.1.3.4.1docsPnmCmtsUsImpNoiseEntryDOCS-PNM-MIB
1.3.6.1.4.1.4491.2.1.27.1.3.4.1.7docsPnmCmtsUsImpNoiseNumEvtsCntedDOCS-PNM-MIB