CISCO-ENTITY-SENSOR-MIB device MIB details by Cisco
CISCO-ENTITY-SENSOR-MIB file content
The SNMP protocol is used to for conveying information and commands between agents and managing entities. SNMP uses the User Datagram Protocol (UDP) as the transport protocol for passing data between managers and agents. The reasons for using UDP for SNMP are, firstly it has low overheads in comparison to TCP, which uses a 3-way hand shake for connection. Secondly, in congested networks, SNMP over TCP is a bad idea because TCP in order to maintain reliability will flood the network with retransmissions.
Management information (MIB) is represented as a collection of managed objects. These objects together form a virtual information base called MIB. An agent may implement many MIBs, but all agents must implement a particular MIB called MIB-II [16]. This standard defines variables for things such as interface statistics (interface speeds, MTU, octets sent, octets received, etc.) as well as various other things pertaining to the system itself (system location, system contact, etc.). The main goal of MIB-II is to provide general TCP/IP management information.
Use ActiveXperts Network Monitor 2024 to import vendor-specific MIB files, inclusing CISCO-ENTITY-SENSOR-MIB.
| Vendor: | Cisco |
|---|---|
| Mib: | CISCO-ENTITY-SENSOR-MIB [download] [view objects] |
| Tool: | ActiveXperts Network Monitor 2024 [download] (ships with advanced SNMP/MIB tools) |
-- ***************************************************************** -- CISCO-ENTITY-SENSOR-MIB -- -- November 1997, Cliff L. Sojourner -- -- Copyright (c) 1998, 2002, 2003, 2004 by cisco Systems, Inc. -- All rights reserved. -- ***************************************************************** -- CISCO-ENTITY-SENSOR-MIB DEFINITIONS ::= BEGIN IMPORTS MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE, Integer32 FROM SNMPv2-SMI MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP FROM SNMPv2-CONF TEXTUAL-CONVENTION, TimeStamp, TruthValue FROM SNMPv2-TC entPhysicalIndex FROM ENTITY-MIB ciscoMgmt FROM CISCO-SMI; entitySensorMIB MODULE-IDENTITY LAST-UPDATED "200401070000Z" ORGANIZATION "Cisco Systems, Inc." CONTACT-INFO "Postal: Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA Tel: +1 408 526 4000 E-mail: cs-snmp@cisco.com" DESCRIPTION "The CISCO-ENTITY-SENSOR-MIB is used to monitor the values of sensors in the Entity-MIB (RFC 2037) entPhysicalTable." REVISION "200401070000Z" DESCRIPTION "[1] Add dBm(14) in SensorDataType." REVISION "200210160000Z" DESCRIPTION "[1] Add critical(30) in CSensorThresholdSeverity. [2] Change to MAX-ACCESS read-write for 3 objects. [3] Add entitySensorMIBComplianceV02." REVISION "200006200000Z" DESCRIPTION "Initial version of this MIB module." ::= { ciscoMgmt 91 } entitySensorMIBObjects OBJECT IDENTIFIER ::= { entitySensorMIB 1 } entitySensorMIBNotificationPrefix OBJECT IDENTIFIER ::= { entitySensorMIB 2 } entitySensorMIBConformance OBJECT IDENTIFIER ::= { entitySensorMIB 3 } -- textual conventions SensorDataType ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "sensor measurement data types. valid values are: other(1): a measure other than those listed below unknown(2): unknown measurement, or arbitrary, relative numbers voltsAC(3): electric potential voltsDC(4): electric potential amperes(5): electric current watts(6): power hertz(7): frequency celsius(8): temperature percentRH(9): percent relative humidity rpm(10): shaft revolutions per minute cmm(11),: cubic meters per minute (airflow) truthvalue(12): value takes { true(1), false(2) } specialEnum(13): value takes user defined enumerated values dBm(14): dB relative to 1mW of power " SYNTAX INTEGER { other(1), unknown(2), voltsAC(3), voltsDC(4), amperes(5), watts(6), hertz(7), celsius(8), percentRH(9), rpm(10), cmm(11), truthvalue(12), specialEnum(13), dBm(14) } SensorDataScale ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "International System of Units (SI) prefixes." SYNTAX INTEGER { yocto(1), -- 10^-24 zepto(2), -- 10^-21 atto(3), -- 10^-18 femto(4), -- 10^-15 pico(5), -- 10^-12 nano(6), -- 10^-9 micro(7), -- 10^-6 milli(8), -- 10^-3 units(9), -- 10^0 kilo(10), -- 10^3 mega(11), -- 10^6 giga(12), -- 10^9 tera(13), -- 10^12 exa(14), -- 10^15 peta(15), -- 10^18 zetta(16), -- 10^21 yotta(17) -- 10^24 } SensorPrecision ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "When in the range 1 to 9, SensorPrecision is the number of decimal places in the fractional part of a SensorValue fixed-point number. When in the range -8 to -1, SensorPrecision is the number of accurate digits in a SensorValue fixed-point number. SensorPrecision is 0 for non-fixed-point numbers. Agent implementors must choose a value for SensorPrecision so that the precision and accuracy of a SensorValue is correctly indicated. For example, a temperature sensor that can measure 0o to 100o C in 0.1o increments, +/- 0.05o, would have a SensorPrecision of 1, a SensorDataScale of units(0), and a SensorValue ranging from 0 to 1000. The SensorValue would be interpreted as (degrees C * 10). If that temperature sensor's precision were 0.1o but its accuracy were only +/- 0.5o, then the SensorPrecision would be 0. The SensorValue would be interpreted as degrees C. Another example: a fan rotation speed sensor that measures RPM from 0 to 10,000 in 100 RPM increments, with an accuracy of +50/-37 RPM, would have a SensorPrecision of -2, a SensorDataScale of units(9), and a SensorValue ranging from 0 to 10000. The 10s and 1s digits of SensorValue would always be 0. " SYNTAX INTEGER (-8..9) SensorValue ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "For sensors that measure voltsAC, voltsDC, amperes, watts, hertz, celsius, cmm this item is a fixed point number ranging from -999,999,999 to +999,999,999. Use the value -1000000000 to indicate underflow. Use the value +1000000000 to indicate overflow. Use SensorPrecision to indicate how many fractional digits the SensorValue has. For sensors that measure percentRH, this item is a number ranging from 0 to 100. For sensors that measure rpm, this item can take only nonnegative values, 0..999999999. For sensors of type truthvalue, this item can take only two values: true(1), false(2). For sensors of type specialEnum, this item can take any value in the range (-1000000000..1000000000), but the meaning of each value is specific to the sensor. For sensors of type other and unknown, this item can take any value in the range (-1000000000..1000000000), but the meaning of the values are specific to the sensor. Use Entity-MIB entPhysicalTable.entPhysicalVendorType to learn about the sensor type. " SYNTAX INTEGER (-1000000000..1000000000) SensorStatus ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "Indicates the operational status of the sensor. ok(1) means the agent can read the sensor value. unavailable(2) means that the agent presently can not report the sensor value. nonoperational(3) means that the agent believes the sensor is broken. The sensor could have a hard failure (disconnected wire), or a soft failure such as out-of-range, jittery, or wildly fluctuating readings. " SYNTAX INTEGER { ok(1), unavailable(2), nonoperational(3) } SensorValueUpdateRate ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "Indicates the interval in seconds between updates to the sensor's value. The value zero indicates: - the sensor value is updated on demand (when polled by the agent for a get-request), - or when the sensor value changes (event-driven), - or the agent does not know the rate " SYNTAX INTEGER (0..999999999) SensorThresholdSeverity ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "sensor threshold severity. Valid values are: other(1) : a severity other than those listed below. minor(10) : Minor Problem threshold. major(20) : Major Problem threshold. critical(30): Critical problem threshold. A system might shut down the sensor associated FRU automatically if the sensor value reach the critical problem threshold." SYNTAX INTEGER { other(1), minor(10), major(20), critical(30) } SensorThresholdRelation ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "sensor threshold relational operator types. valid values are: lessThan(1): if the sensor value is less than the threshold value lessOrEqual(2): if the sensor value is less than or equal to the threshold value greaterThan(3): if the sensor value is greater than the threshold value greaterOrEqual(4): if the sensor value is greater than or equal to the threshold value equalTo(5): if the sensor value is equal to the threshold value notEqualTo(6): if the sensor value is not equal to the threshold value " SYNTAX INTEGER { lessThan(1), lessOrEqual(2), greaterThan(3), greaterOrEqual(4), equalTo(5), notEqualTo(6) } -- -- MIB variables -- entSensorValues OBJECT IDENTIFIER ::= { entitySensorMIBObjects 1 } entSensorThresholds OBJECT IDENTIFIER ::= { entitySensorMIBObjects 2 } -- -- entSensorValueTable -- entSensorValueTable OBJECT-TYPE SYNTAX SEQUENCE OF EntSensorValueEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table lists the type, scale, and present value of a sensor listed in the Entity-MIB entPhysicalTable." ::= { entSensorValues 1 } entSensorValueEntry OBJECT-TYPE SYNTAX EntSensorValueEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entSensorValueTable entry describes the present reading of a sensor, the measurement units and scale, and sensor operational status." INDEX { entPhysicalIndex } ::= { entSensorValueTable 1 } EntSensorValueEntry ::= SEQUENCE { entSensorType SensorDataType, entSensorScale SensorDataScale, entSensorPrecision SensorPrecision, entSensorValue SensorValue, entSensorStatus SensorStatus, entSensorValueTimeStamp TimeStamp, entSensorValueUpdateRate SensorValueUpdateRate } entSensorType OBJECT-TYPE SYNTAX SensorDataType MAX-ACCESS read-only STATUS current DESCRIPTION "This variable indicates the type of data reported by the entSensorValue. This variable is set by the agent at start-up and the value does not change during operation." ::= { entSensorValueEntry 1 } entSensorScale OBJECT-TYPE SYNTAX SensorDataScale MAX-ACCESS read-only STATUS current DESCRIPTION "This variable indicates the exponent to apply to sensor values reported by entSensorValue. This variable is set by the agent at start-up and the value does not change during operation." ::= { entSensorValueEntry 2 } entSensorPrecision OBJECT-TYPE SYNTAX SensorPrecision MAX-ACCESS read-only STATUS current DESCRIPTION "This variable indicates the number of decimal places of precision in fixed-point sensor values reported by entSensorValue. This variable is set to 0 when entSensorType is not a fixed-point type: voltsAC(1), voltsDC(2), amperes(3), watts(4), hertz(5), celsius(6), or cmm(9). This variable is set by the agent at start-up and the value does not change during operation." ::= { entSensorValueEntry 3 } entSensorValue OBJECT-TYPE SYNTAX SensorValue MAX-ACCESS read-only STATUS current DESCRIPTION "This variable reports the most recent measurement seen by the sensor. To correctly display or interpret this variable's value, you must also know entSensorType, entSensorScale, and entSensorPrecision. However, you can compare entSensorValue with the threshold values given in entSensorThresholdTable without any semantic knowledge. " ::= { entSensorValueEntry 4 } entSensorStatus OBJECT-TYPE SYNTAX SensorStatus MAX-ACCESS read-only STATUS current DESCRIPTION "This variable indicates the present operational status of the sensor." ::= { entSensorValueEntry 5 } entSensorValueTimeStamp OBJECT-TYPE SYNTAX TimeStamp MAX-ACCESS read-only STATUS current DESCRIPTION "This variable indicates the age of the value reported by entSensorValue" ::= { entSensorValueEntry 6 } entSensorValueUpdateRate OBJECT-TYPE SYNTAX SensorValueUpdateRate UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "This variable indicates the rate that the agent updates entSensorValue." ::= { entSensorValueEntry 7 } -- -- entSensorThresholdTable -- entSensorThresholdTable OBJECT-TYPE SYNTAX SEQUENCE OF EntSensorThresholdEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table lists the threshold severity, relation, and comparison value, for a sensor listed in the Entity-MIB entPhysicalTable." ::= { entSensorThresholds 1 } entSensorThresholdEntry OBJECT-TYPE SYNTAX EntSensorThresholdEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entSensorThresholdTable entry describes the thresholds for a sensor: the threshold severity, the threshold value, the relation, and the evaluation of the threshold. Only entities of type sensor(8) are listed in this table. Only pre-configured thresholds are listed in this table. Users can create sensor-value monitoring instruments in different ways, such as RMON alarms, Expression-MIB, etc. Entries are created by the agent at system startup and FRU insertion. Entries are deleted by the agent at FRU removal." INDEX { entPhysicalIndex, entSensorThresholdIndex } ::= { entSensorThresholdTable 1 } EntSensorThresholdEntry ::= SEQUENCE { entSensorThresholdIndex Integer32, entSensorThresholdSeverity SensorThresholdSeverity, entSensorThresholdRelation SensorThresholdRelation, entSensorThresholdValue SensorValue, entSensorThresholdEvaluation TruthValue, entSensorThresholdNotificationEnable TruthValue } entSensorThresholdIndex OBJECT-TYPE SYNTAX Integer32 (1..99999999) MAX-ACCESS not-accessible STATUS current DESCRIPTION "An index that uniquely identifies an entry in the entSensorThreshold table. This index permits the same sensor to have several different thresholds." ::= { entSensorThresholdEntry 1 } entSensorThresholdSeverity OBJECT-TYPE SYNTAX SensorThresholdSeverity MAX-ACCESS read-write STATUS current DESCRIPTION "This variable indicates the severity of this threshold." ::= { entSensorThresholdEntry 2 } entSensorThresholdRelation OBJECT-TYPE SYNTAX SensorThresholdRelation MAX-ACCESS read-write STATUS current DESCRIPTION "This variable indicates the relation between sensor value (entSensorValue) and threshold value (entSensorThresholdValue), required to trigger the alarm. when evaluating the relation, entSensorValue is on the left of entSensorThresholdRelation, entSensorThresholdValue is on the right. in pseudo-code, the evaluation-alarm mechanism is: ... if (entSensorStatus == ok) then if (evaluate(entSensorValue, entSensorThresholdRelation, entSensorThresholdValue)) then if (entSensorThresholdNotificationEnable == true)) then raise_alarm(entSensorThresholdAlarmOID); endif endif endif ... " ::= { entSensorThresholdEntry 3 } entSensorThresholdValue OBJECT-TYPE SYNTAX SensorValue MAX-ACCESS read-write STATUS current DESCRIPTION "This variable indicates the value of the threshold. To correctly display or interpret this variable's value, you must also know entSensorType, entSensorScale, and entSensorPrecision. However, you can directly compare entSensorValue with the threshold values given in entSensorThresholdTable without any semantic knowledge. " ::= { entSensorThresholdEntry 4 } entSensorThresholdEvaluation OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-only STATUS current DESCRIPTION "This variable indicates the result of the most recent evaluation of the threshold. If the threshold condition is true, entSensorThresholdEvaluation is true(1). If the threshold condition is false, entSensorThresholdEvaluation is false(2). Thresholds are evaluated at the rate indicated by entSensorValueUpdateRate. " ::= { entSensorThresholdEntry 5 } entSensorThresholdNotificationEnable OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-write STATUS current DESCRIPTION "This variable controls generation of entSensorThresholdNotification for this threshold. When this variable is true(1), generation of entSensorThresholdNotification is enabled. When this variable is false(2), generation of entSensorThresholdNotification is disabled. This variable only controls generation of entSensorThresholdNotification. " ::= { entSensorThresholdEntry 6 } -- -- notifications -- entitySensorMIBNotifications OBJECT IDENTIFIER ::= { entitySensorMIBNotificationPrefix 0 } entSensorThresholdNotification NOTIFICATION-TYPE OBJECTS { entSensorThresholdValue, entSensorValue } STATUS current DESCRIPTION "The sensor value crossed the threshold listed in entSensorThresholdTable. This notification is generated once each time the sensor value crosses the threshold. The agent implementation guarantees prompt, timely evaluation of threshold and generation of this notification. " ::= { entitySensorMIBNotifications 1 } -- -- conformance information -- entitySensorMIBCompliances OBJECT IDENTIFIER ::= { entitySensorMIBConformance 1 } entitySensorMIBGroups OBJECT IDENTIFIER ::= { entitySensorMIBConformance 2 } -- -- compliance statements -- entitySensorMIBComplianceV01 MODULE-COMPLIANCE STATUS deprecated DESCRIPTION "An Entity-MIB implementation that lists sensors in its entPhysicalTable must implement this group." MODULE -- this module MANDATORY-GROUPS { entitySensorValueGroup, entitySensorThresholdGroup, entitySensorThresholdNotificationGroup } ::= { entitySensorMIBCompliances 1 } entitySensorMIBComplianceV02 MODULE-COMPLIANCE STATUS current DESCRIPTION "An Entity-MIB implementation that lists sensors in its entPhysicalTable must implement this group." MODULE -- this module MANDATORY-GROUPS { entitySensorThresholdGroup } GROUP entitySensorValueGroup DESCRIPTION "This group is mandatory for the systems which don't support IETF version of ENTITY-SENSOR-MIB." GROUP entitySensorThresholdNotificationGroup DESCRIPTION "This group is mandatory for the systems which support entitySensorValueGroup group." OBJECT entSensorThresholdSeverity MIN-ACCESS read-only DESCRIPTION " Write access is not required." OBJECT entSensorThresholdRelation MIN-ACCESS read-only DESCRIPTION " Write access is not required." OBJECT entSensorThresholdValue MIN-ACCESS read-only DESCRIPTION " Write access is not required." ::= { entitySensorMIBCompliances 2 } -- -- units of conformance -- entitySensorValueGroup OBJECT-GROUP OBJECTS { entSensorType, entSensorScale, entSensorPrecision, entSensorValue, entSensorStatus, entSensorValueTimeStamp, entSensorValueUpdateRate } STATUS current DESCRIPTION "The collection of objects which are used to describe and monitor values of Entity-MIB entPhysicalTable entries of sensors. " ::= { entitySensorMIBGroups 1 } entitySensorThresholdGroup OBJECT-GROUP OBJECTS { entSensorThresholdSeverity, entSensorThresholdRelation, entSensorThresholdValue, entSensorThresholdEvaluation, entSensorThresholdNotificationEnable } STATUS current DESCRIPTION "The collection of objects which are used to describe and monitor thresholds for sensors." ::= { entitySensorMIBGroups 2 } entitySensorThresholdNotificationGroup NOTIFICATION-GROUP NOTIFICATIONS { entSensorThresholdNotification } STATUS current DESCRIPTION "the collection of notifications used for monitoring sensor threshold activity." ::= { entitySensorMIBGroups 3 } END