OC-STB-HOST-MIB

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › OC-STB-HOST-MIB

Organization: Cable Television Laboratories, Inc.

Last Updated: 2017-06-15

Description: CableLabs OpenCable MIB for monitoring Set-Top Box (STB) host devices in cable TV networks, covering tuner, storage, software versions, and conditional access

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock status) 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.

What Is OC-STB-HOST-MIB?

This is a CableLabs OpenCable specification MIB governing the 'Host' module of a cable Set-Top Box (STB) -- the consumer device that decodes and displays digital cable television signals -- and is openly licensed under Apache 2.0 as part of the OpenCable/tru2way standards. It exposes host device identity (serial number, host ID), capability flags (including AVC/H.264 support), audio/video interface tables (type, description, status per interface), and IEEE 1394 (FireWire) interface tables used for digital content transport between the STB and other devices. It supports monitoring both hardware and software status of the STB: serial/host identity for asset tracking, AV interface up/down status, IEEE 1394 link state, and capability negotiation, alongside conditional-access and tuner-related status implied by the broader OpenCable Host specification. It depends on the CableLabs OpenCable Host specification and related tru2way/OCAP standards for object semantics, and is a vendor-neutral MIB implemented across STB manufacturers. It is deployed on cable-operator-issued digital set-top boxes across North American cable television networks. Engineers implementing or auditing this functionality typically reference the OC-STB-HOST-MIB RFC/standard documentation for the authoritative specification.

IPNetwork Monitor allows you to monitor SNMP objects defined in OC-STB-HOST-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

  • cable set-top box (STB)
  • vendor-neutral, CableLabs OpenCable-standards-based MIB, applies to any compliant STB host device

Monitoring Examples

A cable headend management system would poll ocStbHostAVInterfaceTable's ocStbHostAVInterfaceStatus for each ocStbHostAVInterfaceIndex to confirm HDMI/component AV outputs on a subscriber's STB are reporting connected. Checking ocStbHostIEEE1394Table entries reveals whether FireWire-connected peripheral devices are recognized. ocStbHostSerialNumber and ocStbHostHostID identify the specific unit for a truck-roll or remote diagnostic session. An AV interface stuck in a fault status while ocStbHostCapabilities indicates AVC support is present suggests a cabling or HDCP handshake problem rather than a firmware limitation.

What Can Be Monitored

  • STB serial number/host ID
  • AV interface status per interface
  • IEEE 1394 interface presence/status
  • device capability flags (e.g. AVC support)
Imported Objects

From CLAB-DEF-MIB

clabProjOpenCableOBJECT-IDENTITY

From DOCS-IF-MIB

TenthdB
TenthdBmV

From HOST-RESOURCES-MIB

hrDeviceIndexOBJECT-TYPE
hrStorageIndexOBJECT-TYPE

From INET-ADDRESS-MIB

InetAddress
InetAddressType

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Integer32
MODULE-IDENTITY
OBJECT-IDENTITY
OBJECT-TYPE
TimeTicks
Unsigned32

From SNMPv2-TC

AutonomousType
DateAndTime
DisplayString
MacAddress
PhysAddress
RowPointer
TEXTUAL-CONVENTION
TimeStamp
TruthValue

How to Use in IPNetwork Monitor

Example using ocStbHostFirmwareDownloadFailedCount OID:

Select a Cable set-top box (STB), vendor-neutral CableLabs OpenCable Host specification as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type ocStbHostFirmwareDownloadFailedCount into the Find box to locate it in the OID tree, then select it and click OK. This object details the number of times the product attempted to download the firmware object defined by ocStbHostFirmwareCodeObjectName. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.
OIDs

RFC description

OpenCable Set-top Host device management including software, hardware, memory, and application information.

Start monitoring Cable set-top box (STB), vendor-neutral CableLabs OpenCable Host specification 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 OC-STB-HOST-MIB