DOCS-IF31-MIB :: docsIf31CmtsDsOfdmSubcarrierStatusSkipModulation

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › DOCS-IF31-MIB › docsIf31CmtsDsOfdmSubcarrierStatusSkipModulation

docsIf31CmtsDsOfdmSubcarrierStatusSkipModulation

Module: DOCS-IF31-MIB

OID (symbolic): DOCS-IF31-MIB::docsIf31CmtsDsOfdmSubcarrierStatusSkipModulation

OID (numeric): 1.3.6.1.4.1.4491.2.1.28.1.21.1.5

Node type: OBJECT-TYPE

Type: DsOfdmModulationType

Access: read-only

Description: This attribute indicates the modulation order for every other subcarrier in the range.

What is docsIf31CmtsDsOfdmSubcarrierStatusSkipModulation?

Reports the modulation order used for every other subcarrier in this group when skip modulation is enabled (see docsIf31CmtsDsOfdmSubcarrierStatusSkip) on the downstream OFDM channel, alternating with the MainModulation value. Admins use this alongside MainModulation to fully characterize a channel segment's modulation when a localized plant impairment required skip modulation to be used there.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.28.1.21.1.5
snmpwalk -v2c -c public <target> DOCS-IF31-MIB::docsIf31CmtsDsOfdmSubcarrierStatusSkipModulation

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.28.1.21.1.5.1
snmpget -v2c -c public <target> DOCS-IF31-MIB::docsIf31CmtsDsOfdmSubcarrierStatusSkipModulation.1

SNMPv3 example:

snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> docsIf31CmtsDsOfdmSubcarrierStatusSkipModulation.1

Start monitoring DOCSIS 3.1 cable modem/CMTS-CCAP (OFDM/OFDMA channels, vendor-neutral CableLabs standard) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the DOCS-IF31-MIB::docsIf31CmtsDsOfdmSubcarrierStatusSkipModulation OID value, configure state conditions and alerts, and monitor any DOCSIS 3.1 cable modem/CMTS-CCAP (OFDM/OFDMA channels, 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
1.3.6.1.4.1.4491.2.1.28docsIf31MibDOCS-IF31-MIB
1.3.6.1.4.1.4491.2.1.28.1docsIf31MibObjectsDOCS-IF31-MIB
1.3.6.1.4.1.4491.2.1.28.1.21docsIf31CmtsDsOfdmSubcarrierStatusTableDOCS-IF31-MIB
1.3.6.1.4.1.4491.2.1.28.1.21.1docsIf31CmtsDsOfdmSubcarrierStatusEntryDOCS-IF31-MIB
1.3.6.1.4.1.4491.2.1.28.1.21.1.5docsIf31CmtsDsOfdmSubcarrierStatusSkipModulationDOCS-IF31-MIB