COM21-HCXCC-MIB

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › COM21-HCXCC-MIB

Organization: Com21, Inc.

Last Updated: 1997-01-08

Category: DOCSIS and Cable

Description: Manages the COM21 HCX Cable Concentrator configuration and subscriber management objects.

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What Is COM21-HCXCC-MIB?

COM21-HCXCC-MIB is a vendor-specific MIB from COM21 covering the HCX Cable Concentrator's "ComController" common control unit, an early DOCSIS-era cable modem headend component. Per its short description, it manages cable concentrator configuration and subscriber-management objects, meaning it covers device-level configuration alongside data related to individual subscriber cable modem sessions attached to the concentrator. Its monitoring value would be centered on the health of the control unit itself and the status of subscriber connections it manages, functioning as a hardware/software status indicator for this control unit hardware within the broader HCX cable headend system. Being a proprietary COM21 module tied to this specific control unit, it is likely used alongside other COM21 HCX-family MIBs covering cable modem/RF interface details rather than public DOCSIS MIBs. It was deployed in legacy COM21 HCX cable modem headend systems used by cable operators for early broadband cable data service. Engineers can download the COM21-HCXCC-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in COM21-HCXCC-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

  • COM21 HCX Cable Concentrator (ComController unit)

Monitoring Examples

No sample objects were provided for this module, so specific OID names cannot be cited; based on its stated purpose, an operator would poll concentrator-level configuration and subscriber-management status objects to confirm the ComController unit is operating correctly and subscriber cable modem sessions are properly tracked. A subscriber count or configuration-status object deviating from expectation would indicate a control-unit fault affecting subscriber service on that concentrator.

What Can Be Monitored

  • cable concentrator configuration status
  • subscriber management/session status
Imported Objects

From COM21-HCX-MIB

com21OBJECT-IDENTITY
com21HcxOBJECT-IDENTITY
com21TrapsOBJECT-IDENTITY

From COM21-HCXALM-MIB

hcxAlmSeverityOBJECT-TYPE
hcxEventLogTimeOBJECT-TYPE

From SNMPv2-SMI

Gauge32
Integer32
IpAddress
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE

From SNMPv2-TC

DisplayString
OIDs

RFC description

Com21 HCX ComController unit management covering control card operation, NTP server configuration, and system monitoring.

Start monitoring Com21 HCX Cable Concentrator ComController unit (legacy) 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.

Download COM21-HCXCC-MIB