DOCS-IFEXT2-MIB :: docsIfExt2CmtsCmMscStatusPowerShortfall

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › DOCS-IFEXT2-MIB › docsIfExt2CmtsCmMscStatusPowerShortfall

docsIfExt2CmtsCmMscStatusPowerShortfall

Module: DOCS-IFEXT2-MIB

OID (symbolic): DOCS-IFEXT2-MIB::docsIfExt2CmtsCmMscStatusPowerShortfall

OID (numeric): 1.3.6.1.4.1.4491.2.1.5.1.3.2.1.1

Node type: OBJECT-TYPE

Type: TenthdB

Access: read-only

Description: Indicates the Power Shortfall at the CM, in units of tenth dB. The value is provided by the CM and is sent in the RNG-REQ message. It is internally calculated in units of quarter dB and is rounded upward for this MIB object to the nearest tenth dB. A value of zero indicates that the CM has no power shortfall.

What is docsIfExt2CmtsCmMscStatusPowerShortfall?

This value, in tenths of a dB, reports the transmit power shortfall a specific cable modem reported to the CMTS in its Ranging Request. A CMTS-side admin polls it per modem to spot which subscriber modems can't reach requested transmit power, pointing to a noisy or lossy upstream path for that customer. A reading of 0 on this table entry means that particular modem has no power shortfall.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.5.1.3.2.1.1
snmpwalk -v2c -c public <target> DOCS-IFEXT2-MIB::docsIfExt2CmtsCmMscStatusPowerShortfall

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.5.1.3.2.1.1.1
snmpget -v2c -c public <target> DOCS-IFEXT2-MIB::docsIfExt2CmtsCmMscStatusPowerShortfall.1

Start monitoring DOCSIS cable modem/CMTS (SCDMA/MSC extension, vendor-neutral CableLabs standard) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the DOCS-IFEXT2-MIB::docsIfExt2CmtsCmMscStatusPowerShortfall OID value, configure state conditions and alerts, and monitor any DOCSIS cable modem/CMTS (SCDMA/MSC extension, vendor-neutral CableLabs standard) from a single console.

OID Breakdown

Upper-level ancestors (10 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
1.3.6.1.4.1.4491.2.1.5docsIfExt2MibCLAB-DEF-MIB
Numeric OIDNameModule
1.3.6.1.4.1.4491.2.1.5.1docsIfExt2MibObjectsDOCS-IFEXT2-MIB
1.3.6.1.4.1.4491.2.1.5.1.3docsIfExt2CmtsObjectsDOCS-IFEXT2-MIB
1.3.6.1.4.1.4491.2.1.5.1.3.2docsIfExt2CmtsCmMscStatusTableDOCS-IFEXT2-MIB
1.3.6.1.4.1.4491.2.1.5.1.3.2.1docsIfExt2CmtsCmMscStatusEntryDOCS-IFEXT2-MIB
1.3.6.1.4.1.4491.2.1.5.1.3.2.1.1docsIfExt2CmtsCmMscStatusPowerShortfallDOCS-IFEXT2-MIB