CISCO-ENTITY-DIAG-MIB

MIB Reference — IPNetwork Monitor · Updated September 09, 2026

All MIBsCISCO-ENTITY-DIAG-MIB

Organization: Cisco Systems, Inc.

Last Updated: 2016-03-11

Category: Cisco Devices, Hardware and Environment

Description: Manages hardware diagnostics for Cisco entity components, tracking test results, diagnostic schedules, and hardware health checks.

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 CISCO-ENTITY-DIAG-MIB?

CISCO-ENTITY-DIAG-MIB is a Cisco vendor-specific MIB that models the Online Diagnostics feature across chassis, modules, ports, power supplies, fans, and sensors represented in the standard ENTITY-MIB entPhysicalTable. It describes available tests per physical entity in ceDiagTestInfoTable (with BITS attributes like minimal, complete, perPort, fatal, nonDisruptive), tracks boot-time diagnostic level via ceDiagBootupLevel and per-entity ceDiagEntityBootLevel, and reports whether an entity is running its operational or field-diagnostic image through ceDiagEntityImageAdminStatus/ceDiagEntityImageOperStatus. Test execution and history are tracked in ceDiagTestPerfTable (ceDiagTestPerfLastResult, LastErrorID, TotalRuns, TotalFails, ConsecutiveFails) alongside on-demand (ceDiagOnDemandJobTable) and scheduled (ceDiagScheduledJobTable) diagnostic job control, plus a health-monitor subsystem (ceDiagHMTestTable) that periodically runs non-disruptive tests with configurable interval and failure thresholds. A rising ceDiagTestPerfConsecutiveFails count for a health-monitor test on a given entPhysicalIndex is an early warning of failing hardware before a full outage occurs, and the CISCO-ENTITY-DIAG-MIB MIB is deployed on Cisco chassis-based platforms that support online/health-monitor diagnostics, depending on the ENTITY-MIB for physical entity indexing.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-ENTITY-DIAG-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 modular chassis switches/routers (e.g. Catalyst, Nexus) with Online/GOLD hardware diagnostics

Monitoring Examples

An operator polls ceDiagTestPerfConsecutiveFails and ceDiagTestPerfLastResult for a given entPhysicalIndex and ceDiagTestId corresponding to a health-monitor memory test; a rising consecutive-fail count with LastResult stuck at fail would indicate that module's memory is degrading and should be scheduled for replacement before it causes a hard failure.

What Can Be Monitored

  • per-entity available test descriptions and attributes
  • boot-time diagnostic level (global and per-entity)
  • operational vs. field-diagnostic image status
  • on-demand and scheduled diagnostic job status
  • test performance history (last result, total/consecutive failures)
  • health-monitor test interval and failure threshold configuration
Imported Objects

From CISCO-ENTITY-DIAG-TC-MIB

CeDiagDiagnosticLevel
CeDiagDiagnosticMethod
CeDiagErrorIdentifier
CeDiagErrorIdentifierOrZero
CeDiagJobIdentifier
CeDiagJobSuite
CeDiagPortList
CeDiagTestIdentifier
CeDiagTestList

From CISCO-SMI

ciscoMgmtOBJECT-IDENTITY

From CISCO-TC

EntPhysicalIndexOrZero

From ENTITY-MIB

PhysicalIndex
entPhysicalDescrOBJECT-TYPE
entPhysicalIndexOBJECT-TYPE

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Gauge32
Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DateAndTime
RowStatus
TruthValue

How to Use in IPNetwork Monitor

Example using ceDiagTestPerfTotalRuns OID:

Select a Cisco modular chassis switches/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 ceDiagTestPerfTotalRuns 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. This object indicates the total number of times the corresponding physical entity has executed the test. 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

Manages online diagnostic testing and monitoring for Cisco hardware components and diagnostics.

Start monitoring Cisco modular chassis switches/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-ENTITY-DIAG-MIB