IOS-XR: SNMPによる温度センサーモニタリング

taisasak · ‎2013-05-31

SNMPにてノードの温度センサーをモニタリングする場合、CISCO-ENTITY-SENSOR-MIB の以下の OID にて温度情報を取得することができます。

entSensorType (1.3.6.1.4.1.9.9.91.1.1.1.1.1)
entSensorScale (1.3.6.1.4.1.9.9.91.1.1.1.1.2)
entSensorPrecision (1.3.6.1.4.1.9.9.91.1.1.1.1.3)
entSensorValue (1.3.6.1.4.1.9.9.91.1.1.1.1.4)
entSensorStatus (1.3.6.1.4.1.9.9.91.1.1.1.1.5)

上記 OID の意味はそれぞれ以下のようになっています。

OID	Description	Value
entSensorType	センサーのタイプ	voltsAC(3),voltsDC(4),amperes(5),watts(6),celsius(8),rpm(10), etc.
entSensorScale	センサーのスケール	micro(7),milli(8),units(9),kilo(10),mega(11), etc.
entSensorPrecision	センサーの精度	(-8..9)
entSensorValue	センサーの値	(-1000000000..1000000000)
entSensorStatus	センサーの状態	ok(1),unavailable(2),nonoperational(3)

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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 }

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以下、ASR9K にて Net-SNMP を使って各 CPU の温度センサー値を取得するサンプルになります。

1) 温度センサーの一覧を取得

entSensorType が celcius(8) であるセンサーの一覧を取得する。

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# snmpwalk -v 2c -c public <A.B.C.D> entSensorType | grep celsius

CISCO-ENTITY-SENSOR-MIB::entSensorType.2031334 = INTEGER: celsius(8)

CISCO-ENTITY-SENSOR-MIB::entSensorType.5854428 = INTEGER: celsius(8)

CISCO-ENTITY-SENSOR-MIB::entSensorType.7194350 = INTEGER: celsius(8)

CISCO-ENTITY-SENSOR-MIB::entSensorType.14004310 = INTEGER: celsius(8)

CISCO-ENTITY-SENSOR-MIB::entSensorType.14767495 = INTEGER: celsius(8)

CISCO-ENTITY-SENSOR-MIB::entSensorType.16226363 = INTEGER: celsius(8)

CISCO-ENTITY-SENSOR-MIB::entSensorType.18960943 = INTEGER: celsius(8)

CISCO-ENTITY-SENSOR-MIB::entSensorType.25488015 = INTEGER: celsius(8)

CISCO-ENTITY-SENSOR-MIB::entSensorType.28783653 = INTEGER: celsius(8)

CISCO-ENTITY-SENSOR-MIB::entSensorType.31222139 = INTEGER: celsius(8)

CISCO-ENTITY-SENSOR-MIB::entSensorType.34095411 = INTEGER: celsius(8)

CISCO-ENTITY-SENSOR-MIB::entSensorType.35959791 = INTEGER: celsius(8)

CISCO-ENTITY-SENSOR-MIB::entSensorType.42265628 = INTEGER: celsius(8)

CISCO-ENTITY-SENSOR-MIB::entSensorType.45561266 = INTEGER: celsius(8)

CISCO-ENTITY-SENSOR-MIB::entSensorType.45701958 = INTEGER: celsius(8)

CISCO-ENTITY-SENSOR-MIB::entSensorType.47748509 = INTEGER: celsius(8)

CISCO-ENTITY-SENSOR-MIB::entSensorType.51313331 = INTEGER: celsius(8)

CISCO-ENTITY-SENSOR-MIB::entSensorType.52362521 = INTEGER: celsius(8)

CISCO-ENTITY-SENSOR-MIB::entSensorType.52737404 = INTEGER: celsius(8)

CISCO-ENTITY-SENSOR-MIB::entSensorType.58754277 = INTEGER: celsius(8)

CISCO-ENTITY-SENSOR-MIB::entSensorType.62919878 = INTEGER: celsius(8)

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2) 温度センサーの状態を確認

entSensorStatus が ok(1) である温度センサーの一覧を取得する。

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# snmpwalk -v 2c -c public <A.B.C.D> entSensorStatus | egrep "(2031334|5854428|7194350|14004310|14767495|16226363|18960943|25488015|28783653|31222139|34095411|35959791|42265628|45561266|45701958|47748509|51313331|52362521|52737404|58754277|62919878)"

CISCO-ENTITY-SENSOR-MIB::entSensorStatus.2031334 = INTEGER: ok(1)

CISCO-ENTITY-SENSOR-MIB::entSensorStatus.5854428 = INTEGER: ok(1)

CISCO-ENTITY-SENSOR-MIB::entSensorStatus.7194350 = INTEGER: ok(1)

CISCO-ENTITY-SENSOR-MIB::entSensorStatus.14004310 = INTEGER: ok(1)

CISCO-ENTITY-SENSOR-MIB::entSensorStatus.14767495 = INTEGER: ok(1)

CISCO-ENTITY-SENSOR-MIB::entSensorStatus.16226363 = INTEGER: ok(1)

CISCO-ENTITY-SENSOR-MIB::entSensorStatus.18960943 = INTEGER: ok(1)

CISCO-ENTITY-SENSOR-MIB::entSensorStatus.25488015 = INTEGER: ok(1)

CISCO-ENTITY-SENSOR-MIB::entSensorStatus.28783653 = INTEGER: ok(1)

CISCO-ENTITY-SENSOR-MIB::entSensorStatus.31222139 = INTEGER: ok(1)

CISCO-ENTITY-SENSOR-MIB::entSensorStatus.34095411 = INTEGER: ok(1)

CISCO-ENTITY-SENSOR-MIB::entSensorStatus.35959791 = INTEGER: ok(1)

CISCO-ENTITY-SENSOR-MIB::entSensorStatus.42265628 = INTEGER: ok(1)

CISCO-ENTITY-SENSOR-MIB::entSensorStatus.45561266 = INTEGER: ok(1)

CISCO-ENTITY-SENSOR-MIB::entSensorStatus.45701958 = INTEGER: ok(1)

CISCO-ENTITY-SENSOR-MIB::entSensorStatus.47748509 = INTEGER: ok(1)

CISCO-ENTITY-SENSOR-MIB::entSensorStatus.51313331 = INTEGER: unavailable(2)

CISCO-ENTITY-SENSOR-MIB::entSensorStatus.52362521 = INTEGER: ok(1)

CISCO-ENTITY-SENSOR-MIB::entSensorStatus.52737404 = INTEGER: ok(1)

CISCO-ENTITY-SENSOR-MIB::entSensorStatus.58754277 = INTEGER: ok(1)

CISCO-ENTITY-SENSOR-MIB::entSensorStatus.62919878 = INTEGER: unavailable(2)

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3) 温度センサーの種別を確認

Transceiver の温度センサー以外の温度センサーの一覧を取得する。

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# snmpwalk -v 2c -c public <A.B.C.D> entPhysicalDescr | egrep "(2031334|5854428|7194350|14004310|14767495|16226363|18960943|25488015|28783653|31222139|34095411|35959791|42265628|45561266|45701958|47748509|52362521|52737404|58754277)" | grep -v Transceiver

ENTITY-MIB::entPhysicalDescr.2031334 = STRING: Hot Temperature SensorHotspot0

ENTITY-MIB::entPhysicalDescr.25488015 = STRING: Hot Temperature SensorHotspot0

ENTITY-MIB::entPhysicalDescr.28783653 = STRING: Hot Temperature SensorHotspot0

ENTITY-MIB::entPhysicalDescr.35959791 = STRING: Inlet Temperature SensorInlet0

ENTITY-MIB::entPhysicalDescr.42265628 = STRING: Inlet Temperature SensorInlet0

ENTITY-MIB::entPhysicalDescr.45561266 = STRING: Inlet Temperature SensorInlet0

ENTITY-MIB::entPhysicalDescr.52362521 = STRING: Inlet Temperature SensorInlet0

ENTITY-MIB::entPhysicalDescr.52737404 = STRING: Hot Temperature SensorHotspot0

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4) 温度センサーの Location (RSP/LC) 確認

各温度センサーがどの Location のセンサーであるかを確認する。

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# snmpwalk -v 2c -c public <A.B.C.D> entPhysicalName | egrep "(2031334|25488015|28783653|35959791|42265628|45561266|52362521|52737404)"

ENTITY-MIB::entPhysicalName.2031334 = STRING: temperature 0/0/CPU0

ENTITY-MIB::entPhysicalName.25488015 = STRING: temperature 0/6/CPU0

ENTITY-MIB::entPhysicalName.28783653 = STRING: temperature 0/RSP0/CPU0

ENTITY-MIB::entPhysicalName.35959791 = STRING: temperature 0/RSP1/CPU0

ENTITY-MIB::entPhysicalName.42265628 = STRING: temperature 0/6/CPU0

ENTITY-MIB::entPhysicalName.45561266 = STRING: temperature 0/RSP0/CPU0

ENTITY-MIB::entPhysicalName.52362521 = STRING: temperature 0/0/CPU0

ENTITY-MIB::entPhysicalName.52737404 = STRING: temperature 0/RSP1/CPU0

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5) 温度センサーの値確認

------------------------------------------------------------

# snmpwalk -v 2c -c public <A.B.C.D> entSensorValue | egrep "(2031334|25488015|28783653|35959791|42265628|45561266|52362521|52737404)"

CISCO-ENTITY-SENSOR-MIB::entSensorValue.2031334 = INTEGER: 391

CISCO-ENTITY-SENSOR-MIB::entSensorValue.25488015 = INTEGER: 391

CISCO-ENTITY-SENSOR-MIB::entSensorValue.28783653 = INTEGER: 384

CISCO-ENTITY-SENSOR-MIB::entSensorValue.35959791 = INTEGER: 251

CISCO-ENTITY-SENSOR-MIB::entSensorValue.42265628 = INTEGER: 311

CISCO-ENTITY-SENSOR-MIB::entSensorValue.45561266 = INTEGER: 251

CISCO-ENTITY-SENSOR-MIB::entSensorValue.52362521 = INTEGER: 316

CISCO-ENTITY-SENSOR-MIB::entSensorValue.52737404 = INTEGER: 369

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6) 温度センサーのスケール確認

------------------------------------------------------------

# snmpwalk -v 2c -c public <A.B.C.D> entSensorScale | egrep "(2031334|25488015|28783653|35959791|42265628|45561266|52362521|52737404)"

CISCO-ENTITY-SENSOR-MIB::entSensorScale.2031334 = INTEGER: units(9)

CISCO-ENTITY-SENSOR-MIB::entSensorScale.25488015 = INTEGER: units(9)

CISCO-ENTITY-SENSOR-MIB::entSensorScale.28783653 = INTEGER: units(9)

CISCO-ENTITY-SENSOR-MIB::entSensorScale.35959791 = INTEGER: units(9)

CISCO-ENTITY-SENSOR-MIB::entSensorScale.42265628 = INTEGER: units(9)

CISCO-ENTITY-SENSOR-MIB::entSensorScale.45561266 = INTEGER: units(9)

CISCO-ENTITY-SENSOR-MIB::entSensorScale.52362521 = INTEGER: units(9)

CISCO-ENTITY-SENSOR-MIB::entSensorScale.52737404 = INTEGER: units(9)

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7) 温度センサー値の精度確認

------------------------------------------------------------

# snmpwalk -v 2c -c public <A.B.C.D> entSensorPrecision | egrep "(2031334|25488015|28783653|35959791|42265628|45561266|52362521|52737404)"

CISCO-ENTITY-SENSOR-MIB::entSensorPrecision.2031334 = INTEGER: 1

CISCO-ENTITY-SENSOR-MIB::entSensorPrecision.25488015 = INTEGER: 1

CISCO-ENTITY-SENSOR-MIB::entSensorPrecision.28783653 = INTEGER: 1

CISCO-ENTITY-SENSOR-MIB::entSensorPrecision.35959791 = INTEGER: 1

CISCO-ENTITY-SENSOR-MIB::entSensorPrecision.42265628 = INTEGER: 1

CISCO-ENTITY-SENSOR-MIB::entSensorPrecision.45561266 = INTEGER: 1

CISCO-ENTITY-SENSOR-MIB::entSensorPrecision.52362521 = INTEGER: 1

CISCO-ENTITY-SENSOR-MIB::entSensorPrecision.52737404 = INTEGER: 1

------------------------------------------------------------

上記 OID にて取得した値より、各ノード (RSP/LC) の各センサーの温度は以下のようになります。

entPhysicalIndex	entPhysicalDescr	entPhysicalName	entSensorValue	entSensorScale	entSensorPrecision	温度(℃)
2031334	Hot Temperature SensorHotspot0	temperature 0/0/CPU0	391	units(9)	1	39.1
25488015	Hot Temperature SensorHotspot0	temperature 0/6/CPU0	391	units(9)	1	39.1
28783653	Hot Temperature SensorHotspot0	temperature 0/RSP0/CPU0	384	units(9)	1	38.4
35959791	Inlet Temperature SensorInlet0	temperature 0/RSP1/CPU0	251	units(9)	1	25.1
42265628	Inlet Temperature SensorInlet0	temperature 0/6/CPU0	311	units(9)	1	31.1
45561266	Inlet Temperature SensorInlet0	temperature 0/RSP0/CPU0	251	units(9)	1	25.1
52362521	Inlet Temperature SensorInlet0	temperature 0/0/CPU0	316	units(9)	1	31.6
52737404	Hot Temperature SensorHotspot0	temperature 0/RSP1/CPU0	369	units(9)	1	36.9

なお、 SNMP にて取得した温度センサー値は以下の show コマンドの出力に対応しています。

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RP/0/RSP1/CPU0:ASR9010a#show platform

Node Type State Config State

-----------------------------------------------------------------------------

0/RSP0/CPU0 A9K-RSP-8G(Standby) IOS XR RUN PWR,NSHUT,MON

0/RSP1/CPU0 A9K-RSP-8G(Active) IOS XR RUN PWR,NSHUT,MON

0/0/CPU0 A9K-2T20GE-L IOS XR RUN PWR,NSHUT,MON

0/6/CPU0 A9K-40GE-L IOS XR RUN PWR,NSHUT,MON

RP/0/RSP1/CPU0:ASR9010a#

RP/0/RSP1/CPU0:ASR9010a#show environment temperatures location all

R/S/I Modules Sensor (deg C)

0/0/*

host Inlet0 31.6

host Hotspot0 39.1

0/RSP0/*

host Inlet0 25.1

host Hotspot0 38.4

0/RSP1/*

host Inlet0 25.1

host Hotspot0 36.9

0/6/*

host Inlet0 31.1

host Hotspot0 39.1

RP/0/RSP1/CPU0:ASR9010a#

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