CISCO-FRAME-RELAY-MIB

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCISCO-FRAME-RELAY-MIB

Organization: Cisco Systems, Inc.

Last Updated: 2000-10-13

Category: Cisco Devices, Frame Relay, Network Interfaces

Description: Provides management objects for Frame Relay interface operations on Cisco devices.

IPNetwork Monitor uses several OIDs from this MIB in network discovery and polling the applicable devices. Start monitoring CISCO-FRAME-RELAY-MIB with a free 30-day trial of IPNetwork Monitor.

What Is CISCO-FRAME-RELAY-MIB?

CISCO-FRAME-RELAY-MIB is a Cisco proprietary MIB providing management objects for Frame Relay WAN interfaces on Cisco routers, covering the Local Management Interface (LMI) protocol used between a Frame Relay DTE and the service-provider network as well as per-circuit configuration objects. It exposes LMI link status and type, counts of LMI status-enquiry and status messages sent/received, and counters for LMI update-status exchanges and timeouts, alongside a separate group of Frame Relay circuit objects. Its monitoring purpose centers on WAN link operational health: administrators track cfrLmiLinkstatus to confirm the Frame Relay link is up and correctly signaling, and watch LMI timeout counters to detect keepalive failures that typically precede or explain a Frame Relay circuit going down. As a legacy WAN technology MIB it is a Cisco-specific implementation for Cisco IOS Frame Relay interfaces rather than a direct dependency of other standard MIBs. It is deployed on older Cisco routers still running Frame Relay WAN links, common in legacy enterprise branch connectivity before migration to MPLS/Ethernet WAN. Engineers can download the CISCO-FRAME-RELAY-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-FRAME-RELAY-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

  • Cisco routers with Frame Relay WAN interfaces

Monitoring Examples

A WAN operations team would poll cfrLmiTable/cfrLmiEntry to check cfrLmiLinkstatus and cfrLmiLinkType on a serial interface, confirming the Frame Relay LMI protocol is correctly negotiated. Tracking cfrLmiStatusIns/cfrLmiStatusOuts alongside cfrLmiStatusTimeouts over time would reveal intermittent LMI keepalive loss, a leading indicator of an unreliable carrier circuit before a full outage occurs. The cfrLmiEnquiryIns/cfrLmiEnquiryOuts counters help confirm the polling cadence between router and Frame Relay switch is functioning as configured.

What Can Be Monitored

  • LMI link status
  • LMI protocol type
  • LMI status enquiry/response counts
  • LMI status timeouts
  • Frame Relay circuit status
Imported Objects

From CISCO-SMI

ciscoMgmtOBJECT-IDENTITY

From IF-MIB

InterfaceIndex

From RFC1213-MIB

ifIndex

From RFC1315-MIB

frCircuitDlciOBJECT-TYPE
frCircuitEntryOBJECT-TYPE
frCircuitIfIndexOBJECT-TYPE
frDlcmiEntryOBJECT-TYPE

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Integer32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString
TEXTUAL-CONVENTION
TruthValue

How to Use in IPNetwork Monitor

Example using cfrLmiEnquiryIns OID:

Select a Cisco router 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 cfrLmiEnquiryIns into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. It reports the number of Status Enquiry messages received. 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 (in messages), 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

Manages Frame Relay PVC configuration, traffic statistics, and QoS parameters on Cisco WAN interfaces.

Start monitoring Cisco routers 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 CISCO-FRAME-RELAY-MIB