DOCS-IF-EXT-MIB :: docsIfCmtsCmStatusDocsisMode

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

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docsIfCmtsCmStatusDocsisMode

Module: DOCS-IF-EXT-MIB

OID (symbolic): DOCS-IF-EXT-MIB::docsIfCmtsCmStatusDocsisMode

OID (numeric): 1.3.6.1.2.1.10.127.21.3.1.1

Node type: OBJECT-TYPE

Type: DocsisVersion

Access: read-only

Description: Indication whether the CM has registered as a 1.0 or 1.1 modem

What is docsIfCmtsCmStatusDocsisMode?

This read-only DocsisVersion value, found in a CMTS-side status table that augments the standard per-cable-modem status entry, indicates whether a specific connected cable modem registered with the CMTS as DOCSIS 1.0 or 1.1. An administrator managing a CMTS headend would poll this per-modem value to audit which DOCSIS version each subscriber's modem is actually using, useful for planning upgrades or diagnosing modems that fail to register at the expected higher version. For example, if a particular cable modem's entry in this table reports docsis10(1), the operator would know that specific subscriber's modem registered at the older DOCSIS 1.0 level rather than 1.1.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.2.1.10.127.21.3.1.1
snmpwalk -v2c -c public <target> DOCS-IF-EXT-MIB::docsIfCmtsCmStatusDocsisMode

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.2.1.10.127.21.3.1.1.1
snmpget -v2c -c public <target> DOCS-IF-EXT-MIB::docsIfCmtsCmStatusDocsisMode.1

Start monitoring DOCSIS cable modem/CMTS (capability extension, vendor-neutral IETF standard, extends RFC 2670) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the DOCS-IF-EXT-MIB::docsIfCmtsCmStatusDocsisMode OID value, configure state conditions and alerts, and monitor any DOCSIS cable modem/CMTS (capability extension, vendor-neutral IETF standard, extends RFC 2670) from a single console.

OID Breakdown

Upper-level ancestors (8 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
1.3.6.1.2.1.10.127docsIfMibDOCS-IETF-RFI-MIB
Numeric OIDNameModule
1.3.6.1.2.1.10.127.21docsIfExtMibDOCS-IF-EXT-MIB
1.3.6.1.2.1.10.127.21.3docsIfCmtsCmStatusExtTableDOCS-IF-EXT-MIB
1.3.6.1.2.1.10.127.21.3.1docsIfCmtsCmStatusExtEntryDOCS-IF-EXT-MIB
1.3.6.1.2.1.10.127.21.3.1.1docsIfCmtsCmStatusDocsisModeDOCS-IF-EXT-MIB