CBS-HARDWARE-MIB

MIB Reference — IPNetwork Monitor · Updated September 09, 2026

All MIBs › CBS-HARDWARE-MIB

Organization: Crossbeam Systems, Inc.

Last Updated: 2003-05-08

Category: Cisco Devices, Hardware and Environment

Description: Monitors hardware inventory including chassis, power supplies, and fan status for Cisco CBS series small business switches.

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 CBS-HARDWARE-MIB?

CBS-HARDWARE-MIB is a hardware-inventory and environmental-monitoring MIB defined by Crossbeam Systems for its XOS-based chassis platforms (high-performance network security service switches); despite the abbreviation, the module description and object prefixes trace it to Crossbeam Systems rather than Cisco. It exposes chassis-level hardware identity (product ID, description, serial number, backplane revision) alongside environmental and power data. It is explicitly built for hardware health monitoring, with chassis temperature, upper/lower fan tray status, redundant AC/DC power supply and power-feed status, and a general system alarm all first-class objects, making it a core MIB for detecting physical faults before they cause an outage. Each CBS-HARDWARE-MIB OID in these tables maps to a specific chassis sensor, fan-tray, or power-supply status value that gets polled during routine health checks. It is a standalone vendor hardware MIB without dependency on IETF standard hardware MIBs. It's deployed by network security operations teams monitoring Crossbeam XOS chassis for environmental and power-supply faults in data center or carrier environments.

IPNetwork Monitor allows you to monitor SNMP objects defined in CBS-HARDWARE-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

  • Crossbeam Systems XOS security appliance chassis (not Cisco, despite the short description)

Monitoring Examples

An operator polls cbsHwSystemChassisTemp alongside cbsHwSystemUpperFanTray and cbsHwSystemLowerFanTray status to confirm cooling is adequate; a rising temperature paired with a fan-tray fault indicates imminent thermal shutdown risk. cbsHwSystemRedundentPowerSupplyStatus and cbsHwSystemRedundentACPowerSupplyStatus are checked to verify that redundant power feeds are both healthy, since a silent failure of one supply would leave the chassis without redundancy. cbsHwSystemAlarm serves as a consolidated fault flag, and cbsHwSystemSerialNumber/cbsHwSystemBackplaneRevision are used for asset inventory during hardware audits.

What Can Be Monitored

  • chassis temperature
  • fan tray status
  • redundant power supply status
  • redundant power feed status
  • system alarm state
  • backplane/hardware revision

This MIB depends on

Related MIBs

Imported Objects

From CROSSBEAM-SYSTEMS-MIB

cbsMIBsOBJECT-IDENTITY
cbsMgmtOBJECT-IDENTITY
cbsTrapsOBJECT-IDENTITY

From HOST-RESOURCES-MIB

KBytes
ProductID

From SNMPv2-SMI

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

From SNMPv2-TC

DisplayString
TEXTUAL-CONVENTION
TruthValue

How to Use in IPNetwork Monitor

Example using cbsHwModuleCpuTemp OID:

Select a Crossbeam Systems XOS security appliance chassis 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 cbsHwModuleCpuTemp 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 module's current CPU temperature in degrees Celsius. 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 an Integer32-type OID, Value bounds is the most useful condition here — trigger an alert if the reported value exceeds 45°C, since sustained high CPU temperature often precedes thermal throttling or hardware degradation. Click Finish to create the monitor; you can adjust any parameter later.

See also: cbsHwModuleFPGATemp, cbsHwSystemChassisTemp

OIDs

FAQ

How would a security ops team use CBS-HARDWARE-MIB to catch a cooling problem on a Crossbeam XOS chassis?
Chassis temperature and upper/lower fan tray status are first-class objects in this MIB, letting operators detect a failing fan or rising temperature before it causes a physical fault.

Does CBS-HARDWARE-MIB cover power redundancy as well?
Yes — it exposes redundant AC/DC power supply and power-feed status alongside a general system alarm object, plus chassis identity data such as product ID, serial number, and backplane revision, making it a core hardware-health MIB for this Crossbeam Systems chassis platform (despite the "CBS" name, this is Crossbeam, not Cisco).

RFC description

Crossbeam Systems hardware component monitoring and status objects.

Start monitoring Crossbeam Systems XOS security appliance chassis (not Cisco, despite the module description) 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 CBS-HARDWARE-MIB