DOCS-IF31-MIB :: docsIf31CmtsUsOfdmaChanRangingBackoffEnd

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

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docsIf31CmtsUsOfdmaChanRangingBackoffEnd

Module: DOCS-IF31-MIB

OID (symbolic): DOCS-IF31-MIB::docsIf31CmtsUsOfdmaChanRangingBackoffEnd

OID (numeric): 1.3.6.1.4.1.4491.2.1.28.1.23.1.21

Node type: OBJECT-TYPE

Type: Integer32

Access: read-only

Description: The final random backoff window to use when retrying Ranging Requests. Expressed as a power of 2. A value of 16 at the CMTS indicates that a proprietary adaptive retry mechanism is to be used.

What is docsIf31CmtsUsOfdmaChanRangingBackoffEnd?

Reports the final (maximum) random backoff window for retrying Ranging Requests on this OFDMA upstream channel, expressed as a power of 2 (0-16); a value of 16 at the CMTS means a proprietary adaptive retry mechanism is used instead. Together with docsIf31CmtsUsOfdmaChanRangingBackoffStart, this bounds how widely the CMTS randomizes modem ranging retries, which matters most during mass-reconnect events like a post-outage storm of modems all trying to range in at once.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.28.1.23.1.21
snmpwalk -v2c -c public <target> DOCS-IF31-MIB::docsIf31CmtsUsOfdmaChanRangingBackoffEnd

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.28.1.23.1.21.1
snmpget -v2c -c public <target> DOCS-IF31-MIB::docsIf31CmtsUsOfdmaChanRangingBackoffEnd.1

SNMPv3 example:

snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> docsIf31CmtsUsOfdmaChanRangingBackoffEnd.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::docsIf31CmtsUsOfdmaChanRangingBackoffEnd 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
1.3.6.1.4.1.4491.2.1.28.1.23docsIf31CmtsUsOfdmaChanTableDOCS-IF31-MIB
1.3.6.1.4.1.4491.2.1.28.1.23.1docsIf31CmtsUsOfdmaChanEntryDOCS-IF31-MIB
1.3.6.1.4.1.4491.2.1.28.1.23.1.21docsIf31CmtsUsOfdmaChanRangingBackoffEndDOCS-IF31-MIB