DOCS-IF31-MIB :: docsIf31CmtsDsOfdmChanSubcarrierZeroFreq

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

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docsIf31CmtsDsOfdmChanSubcarrierZeroFreq

Module: DOCS-IF31-MIB

OID (symbolic): DOCS-IF31-MIB::docsIf31CmtsDsOfdmChanSubcarrierZeroFreq

OID (numeric): 1.3.6.1.4.1.4491.2.1.28.1.19.1.7

Node type: OBJECT-TYPE

Type: Unsigned32

Access: read-only

Description: This attribute specifies the center frequency of the subcarrier 0 of the OFDM transmission. Note that since subcarrier 0 is always excluded, it will actually be below the allowed downstream spectrum band. This is the frequency of subcarrier X(0) in the definition of the DFT.

What is docsIf31CmtsDsOfdmChanSubcarrierZeroFreq?

Reports, from the CMTS's perspective, the center frequency in Hz of subcarrier 0 of this OFDM downstream channel's DFT definition; since subcarrier 0 is always excluded from use, this reference point actually falls just below the real allocated downstream spectrum band. This is the CMTS-side counterpart to docsIf31CmDsOfdmChanSubcarrierZeroFreq, used as a reference for calculating individual subcarrier frequencies.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.28.1.19.1.7
snmpwalk -v2c -c public <target> DOCS-IF31-MIB::docsIf31CmtsDsOfdmChanSubcarrierZeroFreq

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.28.1.19.1.7.1
snmpget -v2c -c public <target> DOCS-IF31-MIB::docsIf31CmtsDsOfdmChanSubcarrierZeroFreq.1

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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
1.3.6.1.4.1.4491.2.1.28.1.19docsIf31CmtsDsOfdmChanTableDOCS-IF31-MIB
1.3.6.1.4.1.4491.2.1.28.1.19.1docsIf31CmtsDsOfdmChanEntryDOCS-IF31-MIB
1.3.6.1.4.1.4491.2.1.28.1.19.1.7docsIf31CmtsDsOfdmChanSubcarrierZeroFreqDOCS-IF31-MIB