CISCO-ACCESS-ENVMON-MIB

All MIBs › CISCO-ACCESS-ENVMON-MIB

Organization: Cisco Systems, Inc.

Last Updated: 1998-08-05

Category: Cisco Devices, Hardware and Environment

Description: Monitors environmental conditions including temperature and voltage on Cisco access routers.

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-ACCESS-ENVMON-MIB?

CISCO-ACCESS-ENVMON-MIB is a Cisco proprietary MIB that extends environmental monitoring on Cisco access router platforms, covering conditions such as power supply health beyond what the generic environmental monitor MIB reports. Its data centers squarely on the hardware-status category, exposing the operational state of power supplies and identifying which specific component within a supply has failed. This MIB is explicitly a fault/health-monitoring module: it lets an administrator detect a failed power supply component before it causes a full device outage, complementing temperature and voltage data reported elsewhere in the Cisco environmental monitor family. It is designed as a Cisco-specific supplement, implying dependency on and coexistence with Cisco's broader environmental monitor MIB (CISCO-ENVMON-MIB) for baseline temperature/voltage/fan readings. Typical deployment is on Cisco access routers in branch or edge locations where remote hardware health visibility is important due to limited on-site staff. Engineers can download the CISCO-ACCESS-ENVMON-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-ACCESS-ENVMON-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 access router with environmental monitor hardware

Monitoring Examples

A monitoring system walks caemSupplyStatusTable / caemSupplyStatusEntry across all power supplies in a chassis and reads caemSupplyFailedComponent whenever a supply's status indicates a fault. If caemSupplyFailedComponent identifies a specific sub-component (such as a fan or rectifier stage within the supply) as failed, the NMS can generate a targeted hardware alert rather than a generic power-supply failure notice. This detail helps field technicians bring the correct replacement part on a truck roll to a remote access router site.

What Can Be Monitored

power supply status
failed power supply component
environmental monitor alarms

Imported Objects

From CISCO-ENVMON-MIB

ciscoEnvMonSupplyStatusEntry	OBJECT-TYPE
ciscoEnvMonTemperatureState	OBJECT-TYPE
ciscoEnvMonTemperatureStatusDescr	OBJECT-TYPE
ciscoEnvMonVoltageState	OBJECT-TYPE
ciscoEnvMonVoltageStatusDescr	OBJECT-TYPE

From CISCO-SMI

ciscoMgmt

OBJECT-IDENTITY

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE

How to Use in IPNetwork Monitor

Example using caemSupplyFailedComponent OID:

Select a Cisco access 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 caemSupplyFailedComponent 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 which component of the power supply has failed, if any. 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 INTEGER-type OID, Value bounds is the most useful condition here — trigger an alert if the value is anything other than 'none', since that indicates the condition this object reports has changed to one worth investigating. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
ciscoAccessEnvMonMIB	1.3.6.1.4.1.9.9.61			The MIB module to describe the additional status of the Environmental Monitor on those Cisco Access devices which support one.
caemObjects	1.3.6.1.4.1.9.9.61.1
caemSupplyStatusTable	1.3.6.1.4.1.9.9.61.1.1		not-accessible	The table contains the additional power supply information that are not covered in the ciscoEnvMonSupplyStatusTable of CISCO-ENVMON-MIB.
caemSupplyStatusEntry	1.3.6.1.4.1.9.9.61.1.1.1		not-accessible	Additional information about the failure component or location in the power Supply beyond that provided by Cisco Environmental Monitor MIB's ciscoEnvMonSupplyStatusEntry.
INT caemSupplyFailedComponentEx	1.3.6.1.4.1.9.9.61.1.1.1.1	INTEGER	read-only	The failure component of the power supply being instrumented. none - No failure. inputVoltage - Input power lost in one of the power supplies dcOutputVoltage - DC output voltage lost in one of the power supplies thermal - Power supply thermal failure. multiple - Multiple failures. fan - Fan failure overvoltage - Over voltage.
caemMIBNotificationPrefix	1.3.6.1.4.1.9.9.61.2
caemMIBNotifications	1.3.6.1.4.1.9.9.61.2.0
NTF caemTemperatureNotification	1.3.6.1.4.1.9.9.61.2.0.1			A caemTemperatureNotification is sent if the over temperature condition is detected in the managed system. This is a replacement for the ciscoEnvMonTemperatureNotification trap because the information 'ciscoEnvMonTemperatureStatusValue' required by the trap is not available in the managed system.
NTF caemVoltageNotification	1.3.6.1.4.1.9.9.61.2.0.2			A caemVoltageNotification is sent if the over voltage condition is detected and ciscoEnvMonVoltageState is not set to 'notPresent' in the managed system. This is a replacement for the ciscoEnvMonVoltageNotification trap because the information 'ciscoEnvMonVoltageStatusValue' required by the trap is not available in the managed system.
caemConformance	1.3.6.1.4.1.9.9.61.3
caemCompliances	1.3.6.1.4.1.9.9.61.3.1
caemCompliance	1.3.6.1.4.1.9.9.61.3.1.1			The compliance statement for entities which implement the Cisco Environmental Monitor Supplemental MIB.
caemGroups	1.3.6.1.4.1.9.9.61.3.2
caemGroup	1.3.6.1.4.1.9.9.61.3.2.1			A collection of objects providing the additional Environmental Monitor information beyond that provided by Cisco Environmental Monitor MIB.

RFC description

Monitors environmental conditions (power supply, temperature, voltage) on Cisco access devices with alarm notifications.

Start monitoring Cisco access 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-ACCESS-ENVMON-MIB