DOCS-LOADBALANCING-MIB

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › DOCS-LOADBALANCING-MIB

Category: Domain: CATV/Cable, Standard: DOCSIS

Description: Manages cable modem load balancing and channel assignment policies on DOCSIS CMTS equipment.

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What Is DOCS-LOADBALANCING-MIB?

DOCS-LOADBALANCING-MIB is the CableLabs DOCSIS MIB predating DOCS-LOADBAL3-MIB, defining CMTS-side autonomous load balancing of cable modems across upstream/downstream channels for earlier DOCSIS versions. It exposes a global docsLoadBalEnable switch and a change-over mechanism for moving individual modems, identified by MAC address, to a new downstream frequency/upstream channel. Its monitoring value is process/feature status rather than hardware sensors: confirming whether autonomous load balancing is enabled, and checking docsLoadBalChgOverStatusTable for the outcome of a modem's forced move, helps diagnose uneven channel utilization or a modem stuck during migration. It depends on the base DOCSIS RF interface MIB for channel and frequency context. It is deployed on CMTS headend equipment in cable operator networks, where DOCS-LOADBALANCING-MIB SNMP monitoring confirms modems complete their forced channel migrations successfully.

IPNetwork Monitor allows you to monitor SNMP objects defined in DOCS-LOADBALANCING-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

  • DOCSIS CMTS headend equipment

Monitoring Examples

An operator would poll docsLoadBalEnable to confirm whether autonomous load balancing is active CMTS-wide, then use docsLoadBalChgOverMacAddress, docsLoadBalChgOverDownFrequency, and docsLoadBalChgOverUpChannelId to inspect or initiate a forced move of a specific modem; docsLoadBalChgOverStatusTable/docsLoadBalChgOverStatusEntry keyed by docsLoadBalChgOverStatusMacAddr and docsLoadBalChgOverStatusDownFreq would then confirm whether the modem successfully re-registered on the target channel or is stuck mid-migration.

What Can Be Monitored

  • autonomous load balancing enable state
  • per-modem forced channel change-over command/status
  • modem migration success/failure
  • target downstream frequency/upstream channel
Imported Objects

From CLAB-DEF-MIB

clabProjDocsisOBJECT-IDENTITY

From DOCS-IF-MIB

docsIfCmtsCmStatusIndexOBJECT-TYPE

From IF-MIB

InterfaceIndex

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

Counter
Gauge

From SNMPv2-TC-v1

MacAddress
RowPointer
RowStatus
TimeStamp
TruthValue
OIDs

RFC description

IETF DOCSIS MIB for Cable Modem Termination System (CMTS) load-balancing functionality, managing load-distribution policies and upstream channel allocation.

Start monitoring DOCSIS CMTS headend equipment (load balancing, vendor-neutral CableLabs standard) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

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