CISCO-ENTITY-REDUNDANCY-MIB

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

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Organization: Cisco Systems, Inc.

Last Updated: 2005-10-01

Category: Cisco Devices, Hardware and Environment

Description: Manages hardware redundancy on Cisco chassis platforms, monitoring supervisor/line card switchover state and redundancy group status.

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What Is CISCO-ENTITY-REDUNDANCY-MIB?

This MIB provides generic configuration, control, and monitoring of hardware redundancy across Cisco chassis platforms, covering redundant components like supervisor engines, line cards, and route processors organized into redundancy groups. It exposes redundancy group type definitions, group counts, membership limits, vendor-specific type mappings, and change-tracking for group definitions, all keyed to ENTITY-MIB's entPhysicalIndex and entPhysicalVendorType. This MIB is used for monitoring the hardware status of redundant subsystems, tracking whether a redundancy group has switched over, how many members it has, and whether its definition has changed, supporting high-availability fault detection across chassis with dual supervisors or redundant modules. It explicitly depends on ENTITY-MIB, requiring each redundant component to have an assigned entPhysicalIndex and entPhysicalVendorType. It is deployed on Cisco modular chassis platforms configured with redundant supervisors, route processors, or other duplicated hardware components for high availability. Engineers can download the CISCO-ENTITY-REDUNDANCY-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-ENTITY-REDUNDANCY-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 routers/switches with redundant supervisors or route processors

Monitoring Examples

An administrator would poll ceRedunGroupTypesTable to enumerate configured redundancy group types (ceRedunGroupTypeName) and check ceRedunGroupCounts to confirm the expected number of active groups. ceRedunGroupDefinitionChanged flags when a redundancy group's membership or configuration has changed, which combined with ceRedunMaxMbrsInGroup helps detect an unexpected loss of a redundant member (e.g., a failed standby supervisor). ceRedunVendorTypesTable maps vendor-specific type codes for redundant components being tracked.

What Can Be Monitored

  • redundancy group membership count
  • redundancy group definition changes
  • maximum members per group
  • vendor-specific component types
  • group type configuration
Imported Objects

From CISCO-ENTITY-REDUNDANCY-TC-MIB

CeRedunArch
CeRedunMbrStatus
CeRedunMode
CeRedunReasonCategories
CeRedunScope
CeRedunStateCategories
CeRedunSwitchCommand
CeRedunType

From CISCO-SMI

ciscoMgmtOBJECT-IDENTITY

From ENTITY-MIB

PhysicalIndex

From INET-ADDRESS-MIB

InetAddress
InetAddressType

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Counter64
Gauge32
Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

AutonomousType
RowStatus
StorageType
TimeStamp
TruthValue

How to Use in IPNetwork Monitor

Example using ceRedunMbrSwitchoverSeconds OID:

Select a Cisco modular chassis routers/switches with redundant supervisor 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 ceRedunMbrSwitchoverSeconds 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. The cumulative switching duration time in seconds. For a primary member, this is the cumulative number of seconds that service was carried by the secondary member. 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 Counter64-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 redundancy protection for Cisco device components with support for multiple redundancy types, scopes, and architectures across physical entities.

Start monitoring Cisco modular chassis routers/switches with redundant supervisors 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-REDUNDANCY-MIB