DOCS-IF31-MIB :: docsIf31CmSystemCfgStateDiplexerDsUpperCapability

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

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docsIf31CmSystemCfgStateDiplexerDsUpperCapability

Module: DOCS-IF31-MIB

OID (symbolic): DOCS-IF31-MIB::docsIf31CmSystemCfgStateDiplexerDsUpperCapability

OID (numeric): 1.3.6.1.4.1.4491.2.1.28.1.18.5

Node type: OBJECT-TYPE

Type: Unsigned32

Access: read-only

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

What is docsIf31CmSystemCfgStateDiplexerDsUpperCapability?

Reports, per the DOCSIS 3.1 MULPI spec, the maximum downstream upper 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 ceiling for extended-spectrum downstream capability that admins compare against the modem's actual configured value in docsIf31CmSystemCfgStateDiplexerCfgDsUpperBandEdge.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.28.1.18.5
snmpwalk -v2c -c public <target> DOCS-IF31-MIB::docsIf31CmSystemCfgStateDiplexerDsUpperCapability

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.28.1.18.5.1
snmpget -v2c -c public <target> DOCS-IF31-MIB::docsIf31CmSystemCfgStateDiplexerDsUpperCapability.1

SNMPv3 example:

snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> docsIf31CmSystemCfgStateDiplexerDsUpperCapability.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::docsIf31CmSystemCfgStateDiplexerDsUpperCapability 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
1.3.6.1.4.1.4491.2.1.28.1.18.5docsIf31CmSystemCfgStateDiplexerDsUpperCapabilityDOCS-IF31-MIB