USR-FR-MIB

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › USR-FR-MIB

Organization: CommWorks Corporation, a 3Com Company

Last Updated: 2002-05-05

Category: CommWorks/3Com Access Equipment

Description: Manages Frame Relay DLCIs, LMI signaling, and circuit statistics on CommWorks/3Com equipment.

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What Is USR-FR-MIB?

USR-FR-MIB is a proprietary CommWorks/3Com (US Robotics) MIB for managing Frame Relay service on their access/remote-access equipment, covering DLCI (Data Link Connection Identifier) configuration, LMI (Local Management Interface) signaling, and per-circuit statistics. No sample objects were available from the source, but such a module would typically expose per-DLCI status (active/inactive), LMI protocol type and signaling state, and traffic/error counters per virtual circuit. Its monitoring focus is on the operational software/protocol status of Frame Relay circuits — whether each DLCI is up and correctly signaled via LMI, and whether traffic is flowing without excessive discards or errors — rather than general device hardware health. It builds on the standard IETF Frame Relay DTE MIB (RFC 2115) concepts while adding CommWorks-specific extensions. It would typically be deployed on 3Com/CommWorks WAN access routers providing Frame Relay connectivity in legacy carrier and enterprise WANs. Engineers can download the USR-FR-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in USR-FR-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

  • CommWorks/3Com (US Robotics) Frame Relay-capable access equipment

Monitoring Examples

No sample objects were provided for this MIB, so a concrete object-level monitoring scenario cannot be honestly described; typically an admin would expect to poll per-DLCI status and LMI signaling state to confirm Frame Relay circuits are active, but the exact object names cannot be confirmed here.

What Can Be Monitored

  • per-DLCI operational status
  • LMI signaling state
  • Frame Relay circuit traffic counters
  • circuit error/discard counts
Imported Objects

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
OBJECT-TYPE

From USR-DEFINITIONS-MIB

UsrConfigStatus
UsrDisplayString
commonOBJECT-IDENTITY
OIDs

RFC description

MIB for managing Frame Relay DTE configurations, including DLCI management and Frame Relay-specific parameters on CommWorks enterprise devices.

Start monitoring CommWorks/3Com (US Robotics) Frame Relay-capable access equipment (DLCI/LMI signaling 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.

Download USR-FR-MIB