CMC-MIB

MIB Reference — IPNetwork Monitor · Updated September 09, 2026

All MIBsCMC-MIB

Category: Hardware and Environment, Vendor: Rittal

Description: Manages Rittal Cabinet Management Controller (CMC) environmental sensors including temperature and humidity.

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What Is CMC-MIB?

CMC-MIB is a Rittal Computer Multi Control (CMC) MIB for the environmental and infrastructure monitoring controller commonly installed in Rittal server/network cabinets, covering sensors such as temperature and humidity per the vendor's short description. In this excerpt the visible objects are IP-interface discard counters (cmcIpInAdminDiscards/cmcIpOutAdminDiscards) on the controller itself plus the top-level OID subtree structure (cmc-prod, cmc-adapt, cmc-system, cmc-soft, cmc-mgmt) under which the controller's product, adapter, system, software, and management object groups are organized. The MIB's overall purpose is environmental/hardware status monitoring of the cabinet — the cmc-system/cmc-adapt branches are where sensor readings (temperature, humidity, door contacts) and I/O adapter status would be exposed, alongside the CMC controller's own network-management health reflected by objects like the discard counters shown here. It has no stated dependency on other MIBs in this excerpt, though as a controller with its own IP stack it would naturally coexist with standard IF-MIB/IP-MIB objects for that management interface. It is deployed wherever a Rittal CMC unit is installed inside a server cabinet, typically in data centers and comms rooms needing rack-level environmental monitoring. Engineers can download the CMC-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CMC-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

  • Rittal CMC (Computer Multi Control) cabinet monitoring unit

Monitoring Examples

An operator would poll cmcIpInAdminDiscards and cmcIpOutAdminDiscards to check whether the CMC controller's own management interface is dropping packets administratively, which could indicate a misconfiguration on the controller's network stack. To get actual cabinet environmental readings (temperature, humidity, door status), an operator would need to walk further into the cmc-system or cmc-adapt subtrees, which are referenced here as OID branches but whose individual sensor objects are not enumerated in this excerpt.

What Can Be Monitored

  • management interface input/output discard counts
  • cabinet subsystem tree (product/adapter/system/software/management)
  • environmental sensor branch presence (temperature/humidity, via cmc-system/cmc-adapt)
Imported Objects

From RFC1155-SMI

Counter
Gauge
IpAddress
enterprises
OIDs

RFC description

Provides management information for Rockwell CMC systems including IP and IPX routing and filtering.

Start monitoring Rittal CMC (Computer Multi Control) cabinet monitoring unit 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 CMC-MIB