DOCS-IF31-MIB :: docsIf31CmtsDsOfdmChanLowerBdryFreq

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

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docsIf31CmtsDsOfdmChanLowerBdryFreq

Module: DOCS-IF31-MIB

OID (symbolic): DOCS-IF31-MIB::docsIf31CmtsDsOfdmChanLowerBdryFreq

OID (numeric): 1.3.6.1.4.1.4491.2.1.28.1.19.1.2

Node type: OBJECT-TYPE

Type: Unsigned32

Access: read-only

Description: This attribute represents either the lower boundary frequency of the lower guardband or (if no guardband is defined) the lower boundary frequency of the lowest active subcarrier of the OFDM downstream channel.

What is docsIf31CmtsDsOfdmChanLowerBdryFreq?

Reports, in Hz, the lower boundary frequency of this OFDM downstream channel -- specifically the lower edge of the lower guardband if one is configured, or otherwise the lower boundary of the lowest active subcarrier. Admins use this together with the upper boundary to determine the full frequency range this OFDM channel actually occupies in the plant.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.28.1.19.1.2
snmpwalk -v2c -c public <target> DOCS-IF31-MIB::docsIf31CmtsDsOfdmChanLowerBdryFreq

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.28.1.19.1.2.1
snmpget -v2c -c public <target> DOCS-IF31-MIB::docsIf31CmtsDsOfdmChanLowerBdryFreq.1

SNMPv3 example:

snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> docsIf31CmtsDsOfdmChanLowerBdryFreq.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::docsIf31CmtsDsOfdmChanLowerBdryFreq 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
1.3.6.1.4.1.4491.2.1.28.1.19docsIf31CmtsDsOfdmChanTableDOCS-IF31-MIB
1.3.6.1.4.1.4491.2.1.28.1.19.1docsIf31CmtsDsOfdmChanEntryDOCS-IF31-MIB
1.3.6.1.4.1.4491.2.1.28.1.19.1.2docsIf31CmtsDsOfdmChanLowerBdryFreqDOCS-IF31-MIB