LBHUB-BOOM-MIB

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsLBHUB-BOOM-MIB

Category: Network Management

Description: Manages backplane and optical module status on LANBuilder hub chassis devices.

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 LBHUB-BOOM-MIB?

LBHUB-BOOM-MIB is a 3Com LANBuilder (LB) hub chassis management MIB, part of the legacy 3Com enterprise hub/backplane product line referenced by the "a3Com" and "products" registration objects in its tree. It exposes chassis-level hardware health data, including backplane module status, fault logging, and configuration group information for hub modules installed in the chassis. It is explicitly used for monitoring device hardware status: vmMonBatteryStatus reports backup battery condition, vmMonPOSTResults reports power-on self-test outcome, and the vmMonFaultTable logs fault entries with timestamps and restart counts to help diagnose recurring hardware failures. It relies on standard SNMPv1/SNMPv2 SMI conventions typical of mid-1990s 3Com enterprise MIBs, with no notable dependency on other vendor MIB suites beyond 3Com's own hub-management tree. It would be deployed on legacy 3Com LANBuilder hub chassis in enterprise wiring closets where backplane and module health needed centralized SNMP monitoring. Engineers can download the LBHUB-BOOM-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in LBHUB-BOOM-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

  • 3Com LANBuilder hub chassis

Monitoring Examples

An administrator would poll vmMonBatteryStatus and vmMonPOSTResults to confirm the chassis battery is healthy and the unit passed its power-on self-test, then walk the vmMonFaultTable (indexed by vmMonFaultIndex) to inspect vmMonFaultErrorNumber, vmMonFaultTimeStamp, and vmMonFaultRestartCount for recent hardware faults. A rising vmMonFaultRestartCount or a nonzero vmMonFaultModifiedFlag would signal an unstable module that keeps restarting. The vmConfigGroupTable would additionally be checked to confirm module configuration groupings match the expected chassis layout.

What Can Be Monitored

  • backup battery status
  • power-on self-test results
  • hardware fault log entries
  • module restart counts
  • fault timestamps
  • chassis configuration group membership
Imported Objects

From MAU-MIB

rpMauMediaAvailableOBJECT-TYPE
rptrPortAutoPartitionState

From RFC-1212

OBJECT-TYPE

From RFC-1215

TRAP-TYPE

From RFC1155-SMI

Counter
Gauge
IpAddress
NetworkAddress
TimeTicks
enterprises
mgmt

From RFC1213-MIB

DisplayString
PhysAddress

From SNMPv2-TC

TEXTUAL-CONVENTION
OIDs

RFC description

Extends MIB-II definitions for 3Com hub and repeater management, including network interface and system monitoring objects.

Start monitoring 3Com LANBuilder hub chassis (backplane/module health) 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 LBHUB-BOOM-MIB