CTRON-ENVIRONMENT-MIB

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Category: Hardware and Environment, Vendor: Cabletron/Enterasys

Description: Monitors Cabletron environmental sensors including temperature, voltage, fan speed, and power supply status.

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What Is CTRON-ENVIRONMENT-MIB?

CTRON-ENVIRONMENT-MIB is a Cabletron (Enterasys) enterprise MIB dedicated to physical environmental monitoring of Cabletron chassis-based network equipment. It exposes readings from onboard environmental sensors: chassis/ambient temperature, internal voltage levels, fan speed, and power supply operational status. This is one of the more direct hardware-health MIBs in the Cabletron family — it is specifically meant so an operator can detect overheating, a failing or stalled fan, an out-of-range voltage rail, or a power supply that has gone into a failed/degraded state before those conditions cause an outage. It typically works alongside CTRON-CHASSIS-MIB (slot/module inventory) to give a complete physical health picture of the device. It is deployed on Cabletron/Enterasys modular chassis switches, routers, and hubs that include hot-swappable power supplies and fan trays. Engineers can download the CTRON-ENVIRONMENT-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CTRON-ENVIRONMENT-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

Cabletron/Enterasys modular chassis switch, router, or hub

Monitoring Examples

No specific object or table names were included in the source data for this MIB, so exact identifiers can't be cited, but based on the description an administrator would poll per-sensor temperature and fan-speed objects along with a power-supply status object. A temperature reading trending upward alongside a fan-speed object reporting a fault would indicate imminent thermal shutdown risk. Because no sample objects were provided, this remains a conceptual rather than object-level example.

What Can Be Monitored

chassis/ambient temperature
internal voltage levels
fan speed/status
power supply operational status

Imported Objects

From CTRON-MIB-NAMES

ctenv

OBJECT-IDENTITY

From RFC-1212

OBJECT-TYPE

OIDs

OID symbolic	OID numeric	Type	Access	Description
chEnv	1.3.6.1.4.1.52.4.1.1.8.1
INT chEnvAmbientTemp	1.3.6.1.4.1.52.4.1.1.8.1.1	INTEGER	read-only	The ambient temperature of the room in which the chassis is located. If this sensor is broken or not supported, then this object will be set to zero. The value of this object is the actual temperature in degrees Fahrenheit * 10.
INT chEnvAmbientStatus	1.3.6.1.4.1.52.4.1.1.8.1.2	INTEGER	read-only	This object reflects the status of the ambient temperature reading.
INT chEnvHumidity	1.3.6.1.4.1.52.4.1.1.8.1.3	INTEGER	read-only	The humidity value of the air flowing thru the chassis. The value of this object is the actual humidity * 10.
INT chEnvHumidityStatus	1.3.6.1.4.1.52.4.1.1.8.1.4	INTEGER	read-only	This object reflects the status of the ambient humidity reading.
INT chEnvAmbientHot	1.3.6.1.4.1.52.4.1.1.8.1.5	INTEGER	read-only	The temperature value above which the ambient temperature is deemed to be hot.
INT chEnvAmbientWarm	1.3.6.1.4.1.52.4.1.1.8.1.6	INTEGER	read-only	The temperature value above which the ambient temperature is deemed to be warm, if it is below or equal the hot value.
INT chEnvAmbientCool	1.3.6.1.4.1.52.4.1.1.8.1.7	INTEGER	read-only	The temperature value below which the ambient temperature is deemed to be cool, if it is above or equal the cold value.
INT chEnvAmbientCold	1.3.6.1.4.1.52.4.1.1.8.1.8	INTEGER	read-only	The temperature value below which the ambient temperature is deemed to be cold.
INT chEnvHumidityMoist	1.3.6.1.4.1.52.4.1.1.8.1.9	INTEGER	read-only	The humidity value above which the chassis humidity is deemed to be moist.
INT chEnvHumidityDry	1.3.6.1.4.1.52.4.1.1.8.1.10	INTEGER	read-only	The humidity value below which the chassis humidity is deemed to be a static risk.
INT chEnvNumFans	1.3.6.1.4.1.52.4.1.1.8.1.11	INTEGER	read-only	Number of fans in a chassis.
chEnvFanTable	1.3.6.1.4.1.52.4.1.1.8.1.12		not-accessible	A list of fans installed in this chassis.
chEnvFanEntry	1.3.6.1.4.1.52.4.1.1.8.1.12.1		not-accessible	A slot entry containing objects for a particular module.
INT chEnvFanID	1.3.6.1.4.1.52.4.1.1.8.1.12.1.1	INTEGER	read-only	A unique value, in the range between 1 and and the value of chEnvNumFans.
INT chEnvFanStatus	1.3.6.1.4.1.52.4.1.1.8.1.12.1.2	INTEGER	read-only	This object reflects the status of the chassis fan.
INT chEnvFanAdmin	1.3.6.1.4.1.52.4.1.1.8.1.12.1.3	INTEGER	read-write	This object is used to select the operational mode of the fan. If the value is set to 1 (auto) then fan speed is based on temperature. If the value is set to 3 (testing) then value will return to it's previous value prior to being set at 3.
INT chEnvFanSpeed	1.3.6.1.4.1.52.4.1.1.8.1.12.1.4	INTEGER	read-only	The fan speed expressed as a percentage of the maximum fan speed.
boardEnv	1.3.6.1.4.1.52.4.1.1.8.2
boardEnvSlotTable	1.3.6.1.4.1.52.4.1.1.8.2.1		not-accessible	A list of networking modules installed in this chassis.
boardEnvSlotEntry	1.3.6.1.4.1.52.4.1.1.8.2.1.1		not-accessible	A slot entry containing objects for a particular module.
INT boardEnvSlotID	1.3.6.1.4.1.52.4.1.1.8.2.1.1.1	INTEGER	read-only	The slot number of a chassis slot in which this board is installed. This object is similiar to chSlotID in the Chassis MIB.
INT boardEnvTemp	1.3.6.1.4.1.52.4.1.1.8.2.1.1.2	INTEGER	read-only	The temperature of the networking board. If this sensor is broken or not supported, then this object will be set to zero. The temperature is in degrees Fahrenheit * 10.
INT boardEnvTempStatus	1.3.6.1.4.1.52.4.1.1.8.2.1.1.3	INTEGER	read-only	This object reflects the status of the board temperature reading.
INT boardEnvTempRelStatus	1.3.6.1.4.1.52.4.1.1.8.2.1.1.4	INTEGER	read-only	This object reflects the status of the board temperature reading relative to the ambient temperature.
INT boardEnvShutdownAdmin	1.3.6.1.4.1.52.4.1.1.8.2.1.1.5	INTEGER	read-write	This object enables or disables the auto shutdown due to a temperature condition.
INT boardEnvTempHot	1.3.6.1.4.1.52.4.1.1.8.2.1.1.6	INTEGER	read-only	The temperature value above which the board temperature is deemed to be hot.
INT boardEnvTempWarm	1.3.6.1.4.1.52.4.1.1.8.2.1.1.7	INTEGER	read-only	The temperature value above which the board temperature is deemed to be warm, if it is below or equal the hot value.
INT boardEnvTempCool	1.3.6.1.4.1.52.4.1.1.8.2.1.1.8	INTEGER	read-only	The temperature value below which the board temperature is deemed to be cool, if it is above or equal the cold value.
INT boardEnvTempCold	1.3.6.1.4.1.52.4.1.1.8.2.1.1.9	INTEGER	read-only	The temperature value below which the board temperature is deemed to be cold.
INT boardEnvTempRelHot	1.3.6.1.4.1.52.4.1.1.8.2.1.1.10	INTEGER	read-only	The temperature value above ambient at which the board temperature is deemed to be hot relative to ambient.
INT boardEnvTempRelWarm	1.3.6.1.4.1.52.4.1.1.8.2.1.1.11	INTEGER	read-only	The temperature value above ambient at which the board temperature is deemed to be warm relative to ambient, if it is below the relative hot value of boardEnvTempRelHot.
INT boardEnvTempMaxFanRelHot	1.3.6.1.4.1.52.4.1.1.8.2.1.1.12	INTEGER	read-only	The temperature value above ambient at which the board temperature is deemed to be hot relative to ambient, with all fans in the chassis running at there maximum speed.
INT boardEnvTempMaxFanRelWarm	1.3.6.1.4.1.52.4.1.1.8.2.1.1.13	INTEGER	read-only	The temperature value above ambient at which the board temperature is deemed to be warm relative to ambient, if it is below the relative hot value of boardEnvTempMaxFanRelHot, with all fans in the chassis running at there maximum speed.
psEnv	1.3.6.1.4.1.52.4.1.1.8.3
psEnvSlotTable	1.3.6.1.4.1.52.4.1.1.8.3.1		not-accessible	A list of networking modules installed in this chassis.
psEnvSlotEntry	1.3.6.1.4.1.52.4.1.1.8.3.1.1		not-accessible	A slot entry containing objects for a particular module.
INT psEnvSlotID	1.3.6.1.4.1.52.4.1.1.8.3.1.1.1	INTEGER	read-only	The slot number of a chassis slot in which this power supply is installed. An unique value, in the range between 1 and and the value of chNumSlots. This object is similiar to chSlotID in the Chassis MIB.
INT psEnvTemp	1.3.6.1.4.1.52.4.1.1.8.3.1.1.2	INTEGER	read-only	The temperature of the power supply. If this sensor is broken or not supported, then this object will be set to zero. The temperature is in degrees Fahrenheit * 10.
INT psEnvTempStatus	1.3.6.1.4.1.52.4.1.1.8.3.1.1.3	INTEGER	read-only	This object reflects the status of the power supply temperature reading.
INT psEnvTempHot	1.3.6.1.4.1.52.4.1.1.8.3.1.1.4	INTEGER	read-only	The temperature value above which the power supply temperature is deemed to be hot.
INT psEnvTempWarm	1.3.6.1.4.1.52.4.1.1.8.3.1.1.5	INTEGER	read-only	The temperature value above which the power supply temperature is deemed to be warm, if it is below or equal the hot value.
INT psEnvTempCool	1.3.6.1.4.1.52.4.1.1.8.3.1.1.6	INTEGER	read-only	The temperature value below which the power supply temperature is deemed to be cool, if it is above or equal the cold value.
INT psEnvTempCold	1.3.6.1.4.1.52.4.1.1.8.3.1.1.7	INTEGER	read-only	The temperature value below which the power supply temperature is deemed to be cold.
INT psEnvFanStatus	1.3.6.1.4.1.52.4.1.1.8.3.1.1.8	INTEGER	read-only	This object reflects the status of the chassis fan.
INT psEnvFanAdmin	1.3.6.1.4.1.52.4.1.1.8.3.1.1.9	INTEGER	read-write	This object is used to select the operational mode of the fan. If the value is set to 1 (auto) then fan speed is based on temperature. If the value is set to 3 (testing) then value will return to it's previous value prior to being set at 3.
INT psEnvFanSpeed	1.3.6.1.4.1.52.4.1.1.8.3.1.1.10	INTEGER	read-only	The fan speed expressed as a percentage of the maximum fan speed.
bbuEnv	1.3.6.1.4.1.52.4.1.1.8.4

RFC description

Cabletron (Enterasys) environment management MIB. Defines SNMP objects for monitoring environmental parameters including chassis, board, power supply, and battery backup unit status on legacy network equipment.

Start monitoring Cabletron/Enterasys modular chassis switch/router/hub (environmental sensors) 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 CTRON-ENVIRONMENT-MIB

What Is CTRON-ENVIRONMENT-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description