ARISTA-ENTITY-SENSOR-MIB

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Organization: Arista Networks, Inc.

Last Updated: 2014-08-15

Category: Vendor: Arista

Description: Arista EOS entity sensor extensions for transceiver and environmental sensor data.

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What Is ARISTA-ENTITY-SENSOR-MIB?

ARISTA-ENTITY-SENSOR-MIB is an Arista Networks EOS extension that augments the standard IETF ENTITY-SENSOR-MIB's entPhySensorTable with threshold support for environmental sensors such as voltage and temperature sensors found throughout an Arista switch. It exposes per-sensor low/high warning and critical threshold values along with a human-readable status description, and can generate notifications when a sensor value crosses a configured threshold. This is a textbook hardware-health monitoring MIB: it lets an operator know not just a sensor's raw reading (from the base ENTITY-SENSOR-MIB) but whether that reading is approaching or has already crossed a warning or critical limit for temperature or voltage, directly supporting proactive detection of overheating or power-related faults. It explicitly depends on and augments the IETF ENTITY-SENSOR-MIB, so it must be read together with that standard module's entPhySensorTable to get full sensor context. It is deployed on Arista EOS-based data-center switches for environmental and hardware health monitoring and alerting. Engineers can download the ARISTA-ENTITY-SENSOR-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in ARISTA-ENTITY-SENSOR-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

Arista Networks EOS-based switches

Monitoring Examples

aristaEntSensorThresholdTable/aristaEntSensorThresholdEntry augments a corresponding entPhySensorTable row with aristaEntSensorThresholdLowWarning, aristaEntSensorThresholdLowCritical, aristaEntSensorThresholdHighWarning, and aristaEntSensorThresholdHighCritical, letting an admin determine whether a switch's temperature or voltage sensor is nearing or has crossed a critical limit. aristaEntSensorStatusDescr supplies human-readable context for that sensor's condition, and together with the base MIB's sensor value this allows an NMS to alert on an overheating component before it causes a hardware fault.

What Can Be Monitored

sensor low/high warning thresholds
sensor low/high critical thresholds
sensor status description
temperature/voltage sensor readings (via base ENTITY-SENSOR-MIB)
threshold-crossing notification events

Imported Objects

From ARISTA-SMI-MIB

aristaMibs

OBJECT-IDENTITY

From ENTITY-MIB

entPhysicalDescr	OBJECT-TYPE
entPhysicalIndex	OBJECT-TYPE

From ENTITY-SENSOR-MIB

EntitySensorValue
entPhySensorValue	OBJECT-TYPE

From ENTITY-STATE-MIB

entStateAlarm

OBJECT-TYPE

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE

OIDs

OID symbolic	OID numeric	Type	Access	Description
aristaEntSensorMIB	1.3.6.1.4.1.30065.3.12			This MIB module augments the entPhySensorTable of ENTITY-SENSOR-MIB to provide threshold information for various sensors in the system. For example, a given device may have several voltage sensors as well as temperature sensors each with appropriate threshold support to help NMS systems detect and alert appropriately. In addition, on systems where it is supported, if the sensor value crosses the supported threshold value the system can generate appropriate notification as well.
aristaEntSensorMibNotifications	1.3.6.1.4.1.30065.3.12.0
NTF aristaEntSensorAlarm	1.3.6.1.4.1.30065.3.12.0.1			This notification is generated under 2 conditions: a) When the value of the sensor value crosses a supported low or high threshold into warning or critical status. b) If previously the sensor value was in a warning or critical status but returns back to a normal status.
aristaEntSensorMibObjects	1.3.6.1.4.1.30065.3.12.1
aristaEntSensorThresholdTable	1.3.6.1.4.1.30065.3.12.1.1		not-accessible	This table contains threshold information for the various sensors in the system.
aristaEntSensorThresholdEntry	1.3.6.1.4.1.30065.3.12.1.1.1		not-accessible	A single row containing threshold information for a sensor. Threshold values are reported using the unit of EntitySensorValue. If a sensor does not support threshold data, then an underflow/overflow value is returned. All the other relevant information for the given sensor can be obtained from the entPhySensorTable itself.
ENT aristaEntSensorThresholdLowWarning	1.3.6.1.4.1.30065.3.12.1.1.1.1	EntitySensorValue	read-only	The low thresold value for the given sensor at which point the entity's alarm status is set to warning.
ENT aristaEntSensorThresholdLowCritical	1.3.6.1.4.1.30065.3.12.1.1.1.2	EntitySensorValue	read-only	The low critical value for the given sensor at which point the entity's alarm status is set to critical.
ENT aristaEntSensorThresholdHighWarning	1.3.6.1.4.1.30065.3.12.1.1.1.3	EntitySensorValue	read-only	The high thresold value for the given sensor at which point the entity's alarm status is set to warning.
ENT aristaEntSensorThresholdHighCritical	1.3.6.1.4.1.30065.3.12.1.1.1.4	EntitySensorValue	read-only	The high critical value for the given sensor at which point the entity's alarm status is set to critical.
STR aristaEntSensorStatusDescr	1.3.6.1.4.1.30065.3.12.1.1.1.5	SnmpAdminString	read-only	A textual description of the current status of the sensor. It serves as a human-readable representation of the operating status including any threshold alerts.
aristaEntSensorMibConformance	1.3.6.1.4.1.30065.3.12.2
aristaEntSensorMibCompliances	1.3.6.1.4.1.30065.3.12.2.1
aristaEntSensorMibCompliance	1.3.6.1.4.1.30065.3.12.2.1.1			The compliance statement for Arista switches that implement the ARISTA-ENTITY-SENSOR-MIB.
aristaEntSensorMibGroups	1.3.6.1.4.1.30065.3.12.2.2
aristaEntSensorThresholdGroup	1.3.6.1.4.1.30065.3.12.2.2.1			The collection of objects that provide threshold information for the sensors in the system.
aristaEntSensorNotificationsGroup	1.3.6.1.4.1.30065.3.12.2.2.2			The collection of notifications generated by the system if sensor(s) change value are not within the acceptable operating range.

RFC description

Augments entity sensor monitoring with threshold alerts for voltage and temperature sensors on Arista switches.

Start monitoring Arista Networks EOS switches 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 ARISTA-ENTITY-SENSOR-MIB

What Is ARISTA-ENTITY-SENSOR-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description