CISCO-ERM-MIB

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCISCO-ERM-MIB

Category: Cisco Devices, Hardware and Environment

Description: Provides management objects for the Cisco Embedded Resource Manager (ERM), monitoring CPU, memory, and resource thresholds on routers and switches.

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What Is CISCO-ERM-MIB?

CISCO-ERM-MIB supports Cisco's Embedded Resource Manager (ERM), a subsystem in Cisco IOS routers and switches that tracks internal system resource pools such as CPU, memory, and hardware-specific resources like TCAM or route tables. It exposes configuration objects for defining resource owners, resource users, and threshold policies, along with scalar and tabular data describing which policy is currently applied globally. The MIB is explicitly designed for monitoring the software and hardware health of a device by tracking resource utilization against configurable thresholds so administrators can detect impending exhaustion of CPU, memory, or other finite platform resources before it causes an outage. It is a Cisco proprietary MIB and typically works alongside CISCO-PROCESS-MIB and CISCO-MEMORY-POOL-MIB for a fuller resource picture, though it does not strictly require them. It is deployed on Cisco routers and switches running IOS/IOS-XE where administrators need fine-grained early-warning thresholds on internal resource consumption. Engineers can download the CISCO-ERM-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-ERM-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
  • Cisco switches (IOS/IOS-XE)

Monitoring Examples

An administrator could poll cermResOwnerTable, keyed by cermResOwnerId and cermResOwnerSubEntityId, to read cermResOwnerName and cermResOwnerResUserCount for each registered resource owner (e.g., a line card or software feature) on the box. Comparing current usage against the configured threshold policy named in cermScalarsGlobalPolicyName reveals whether a resource is approaching its configured limit. A rising cermResOwnerResUserCount with no corresponding capacity increase would signal a resource leak or unusual load pattern worth investigating before the device hits a hard limit.

What Can Be Monitored

  • global resource policy name
  • resource owner utilization
  • resource user count
  • resource group count
  • threshold configurability per resource
  • resource subtype details
Imported Objects

From CISCO-SMI

ciscoMgmtOBJECT-IDENTITY

From ENTITY-MIB

PhysicalIndex
entPhysicalIndexOBJECT-TYPE

From RFC-1212

OBJECT-TYPE

From RFC-1215

TRAP-TYPE

From RFC1155-SMI

Gauge

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-TC-v1

RowStatus
StorageType
TruthValue
OIDs

RFC description

Cisco Embedded Resource Manager MIB for managing system resources (CPU, memory, buffers) to prevent depletion and ensure fair resource sharing across entities.

Start monitoring Cisco routers and switches (Embedded Resource Manager) 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-ERM-MIB