DOCS-IF31-MIB :: docsIf31CmSystemCfgStateDiplexerDsLowerCapability

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

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docsIf31CmSystemCfgStateDiplexerDsLowerCapability

Module: DOCS-IF31-MIB

OID (symbolic): DOCS-IF31-MIB::docsIf31CmSystemCfgStateDiplexerDsLowerCapability

OID (numeric): 1.3.6.1.4.1.4491.2.1.28.1.18.3

Node type: OBJECT-TYPE

Type: Unsigned32

Access: read-only

Description: This attribute specifies the minimum diplexer downstream lower band edge supported by the CM device. This corresponds to the minimum capability reported by the CM in the Diplexer Downstream Lower Band Edge modem capability.

What is docsIf31CmSystemCfgStateDiplexerDsLowerCapability?

Reports, per the DOCSIS 3.1 MULPI spec, the minimum downstream lower band edge frequency this cable modem's diplexer filter is capable of supporting, as advertised by the modem's own hardware capability. This is the hardware floor for extended-spectrum downstream capability that admins compare against the modem's actual configured value in docsIf31CmSystemCfgStateDiplexerCfgDsLowerBandEdge.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.28.1.18.3
snmpwalk -v2c -c public <target> DOCS-IF31-MIB::docsIf31CmSystemCfgStateDiplexerDsLowerCapability

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.28.1.18.3.1
snmpget -v2c -c public <target> DOCS-IF31-MIB::docsIf31CmSystemCfgStateDiplexerDsLowerCapability.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::docsIf31CmSystemCfgStateDiplexerDsLowerCapability 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
1.3.6.1.4.1.4491.2.1.28.1.18docsIf31CmSystemCfgStateDOCS-IF31-MIB
1.3.6.1.4.1.4491.2.1.28.1.18.3docsIf31CmSystemCfgStateDiplexerDsLowerCapabilityDOCS-IF31-MIB