DOCS-IETF-RFI-MIB :: docsIfCmtsCmStatusDownChannelIfIndex

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

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docsIfCmtsCmStatusDownChannelIfIndex

Module: DOCS-IETF-RFI-MIB

OID (symbolic): DOCS-IETF-RFI-MIB::docsIfCmtsCmStatusDownChannelIfIndex

OID (numeric): 1.3.6.1.2.1.10.127.1.3.3.1.4

Node type: OBJECT-TYPE

Type: InterfaceIndexOrZero

Access: read-only

Description: IfIndex of the downstream channel this CM is connected to. If the downstream channel is unknown, this object returns a value of zero.

What is docsIfCmtsCmStatusDownChannelIfIndex?

This is the ifIndex of the downstream channel this cable modem is currently connected through, or zero if unknown. An admin uses this to map a specific subscriber's modem to the physical downstream channel table, useful when isolating whether a service issue is affecting one channel's worth of modems.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.2.1.10.127.1.3.3.1.4
snmpwalk -v2c -c public <target> DOCS-IETF-RFI-MIB::docsIfCmtsCmStatusDownChannelIfIndex

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.2.1.10.127.1.3.3.1.4.1
snmpget -v2c -c public <target> DOCS-IETF-RFI-MIB::docsIfCmtsCmStatusDownChannelIfIndex.1

Start monitoring DOCSIS 2.0 cable modem/CMTS (RF interface, vendor-neutral IETF/CableLabs standard) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the DOCS-IETF-RFI-MIB::docsIfCmtsCmStatusDownChannelIfIndex OID value, configure state conditions and alerts, and monitor any DOCSIS 2.0 cable modem/CMTS (RF interface, vendor-neutral IETF/CableLabs standard) from a single console.

OID Breakdown

Upper-level ancestors (7 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.2mgmtAPERTUS-NPG-MIB
1.3.6.1.2.1mib_2AXON-MIB
1.3.6.1.2.1.10transmissionCHECKPOINT-MIB-2
Numeric OIDNameModule
1.3.6.1.2.1.10.127docsIfMibDOCS-IETF-RFI-MIB
1.3.6.1.2.1.10.127.1docsIfMibObjectsDOCS-IETF-RFI-MIB
1.3.6.1.2.1.10.127.1.3docsIfCmtsObjectsDOCS-IETF-RFI-MIB
1.3.6.1.2.1.10.127.1.3.3docsIfCmtsCmStatusTableDOCS-IETF-RFI-MIB
1.3.6.1.2.1.10.127.1.3.3.1docsIfCmtsCmStatusEntryDOCS-IETF-RFI-MIB
1.3.6.1.2.1.10.127.1.3.3.1.4docsIfCmtsCmStatusDownChannelIfIndexDOCS-IETF-RFI-MIB