DOCS-IF-M-CMTS-MIB :: docsIfMCmtsCoreDownstreamType

MIB Reference — IPNetwork Monitor · Updated September 21, 2026

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docsIfMCmtsCoreDownstreamType

Module: DOCS-IF-M-CMTS-MIB

OID (symbolic): DOCS-IF-M-CMTS-MIB::docsIfMCmtsCoreDownstreamType

OID (numeric): 1.3.6.1.4.1.4491.2.1.6.1.2.1.1.1

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-only

Description: The value 'integrated' means the Downstream Interface is integrated to the DOCSIS MAC interface. This type corresponds to the legacy DOCSIS Downstream Interface of ifType 128. The value 'external' indicates a Downstream External Interface that is associated to a QAM channel by mechanisms like a DEPI session.

What is docsIfMCmtsCoreDownstreamType?

Tells you whether this M-CMTS downstream interface is the legacy 'integrated' type built into the DOCSIS MAC card, or an 'external' downstream whose QAM channel lives on a separate EQAM device linked via a DEPI session. A sysadmin checks this to know whether downstream config/troubleshooting for a channel happens on the CMTS chassis itself or on a remote edge-QAM box reached over the CIN.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.6.1.2.1.1.1
snmpwalk -v2c -c public <target> DOCS-IF-M-CMTS-MIB::docsIfMCmtsCoreDownstreamType

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.6.1.2.1.1.1.1
snmpget -v2c -c public <target> DOCS-IF-M-CMTS-MIB::docsIfMCmtsCoreDownstreamType.1

Start monitoring M-CMTS core + EQAM device (Modular CMTS DEPI, vendor-neutral CableLabs standard) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the DOCS-IF-M-CMTS-MIB::docsIfMCmtsCoreDownstreamType OID value, configure state conditions and alerts, and monitor any M-CMTS core + EQAM device (Modular CMTS DEPI, vendor-neutral CableLabs standard) from a single console.

OID Breakdown

Upper-level ancestors (10 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
1.3.6.1.4.1.4491.2.1.6docsIfMCmtsMibCLAB-DEF-MIB
Numeric OIDNameModule
1.3.6.1.4.1.4491.2.1.6.1docsIfMCmtsObjectsDOCS-IF-M-CMTS-MIB
1.3.6.1.4.1.4491.2.1.6.1.2docsIfMCmtsCoreObjectsDOCS-IF-M-CMTS-MIB
1.3.6.1.4.1.4491.2.1.6.1.2.1docsIfMCmtsCoreDownstreamTableDOCS-IF-M-CMTS-MIB
1.3.6.1.4.1.4491.2.1.6.1.2.1.1docsIfMCmtsCoreDownstreamEntryDOCS-IF-M-CMTS-MIB
1.3.6.1.4.1.4491.2.1.6.1.2.1.1.1docsIfMCmtsCoreDownstreamTypeDOCS-IF-M-CMTS-MIB