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MIB Reference

AR100-S, AR110-S, AR120-S, AR150-S, AR160-S, AR200-S, AR1200-S, AR2200-S, and AR3200-S V200R009

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alarmTable

alarmTable

This table is the RMON alarm table. It contains a group of alarm thresholds defined by the NMS station for the network performance that can be any integer-type object of the local monitor MIB. If the threshold is exceeded in the corresponding direction, the monitor generates the alarm log or sends the alarm to the NMS station. The implementation of alarmTable depends on eventTable.

The index of this table is alarmIndex.

OID

Object Name

Syntax

Max Access

Description

Implemented Specifications

1.3.6.1.2.1.16.3.1.1.1

alarmIndex

Integer32 (1..65535)

Read-only

This object identifies the entry in the alarmTable.

This object is implemented as defined in the corresponding MIB files.

1.3.6.1.2.1.16.3.1.1.2

alarmInterval

Integer32

Read-create

The value of this object indicates the interval that data is sampled and compared, in seconds.

This object is implemented as defined in the corresponding MIB files.

1.3.6.1.2.1.16.3.1.1.3

alarmVariable

OBJECT IDENTIFIER

Read-create

This object indicates the OID of the sampled variable.

This object is implemented as defined in the corresponding MIB files.

1.3.6.1.2.1.16.3.1.1.4

alarmSampleType

INTEGER { absoluteValue(1),deltaValue(2)}

Read-create

The value of this object identifies the method of comparing the sample value with threshold.

  • absoluteValue: Directly compare the sample value with the threshold.
  • deltaValue: Compare the difference of the sample value minus the last sample value with the threshold.

This object is implemented as defined in the corresponding MIB files.

1.3.6.1.2.1.16.3.1.1.5

alarmValue

Integer32

Read-only

The value of the statistic during the last sampling period. The value of this object identifies the value compared with the threshold. This object is related to the value of alarmSampleType.

This object is implemented as defined in the corresponding MIB files.

1.3.6.1.2.1.16.3.1.1.6

alarmStartupAlarm

INTEGER { risingAlarm(1),fallingAlarm(2),risingOrFallingAlarm(3)}

Read-create

The value of this object identifies the type of the alarm to be sent if the value of the alarmStatus is valid.

Values can be risingAlarm(1), fallingAlarm(2), and risingOrFallingAlarm(3).

  • If the first sample value is greater than or equal to risingThreshold and the values of alarmStartupAlarm, risingAlarm, and risingOrFallingAlarm are the same, one upper limit alarm is generated.
  • If the first sample value is less than or equal to fallingThreshold and the values of the alarmStartupAlarm, fallingAlarm, and risingOrFallingAlarm are the same, one lower limit alarm is generated.

This object is implemented as defined in the corresponding MIB files.

1.3.6.1.2.1.16.3.1.1.7

alarmRisingThreshold

Integer32

Read-create

The value of this object identifies the threshold of sample statistics.

  • If the current sample value is greater than or equal to the threshold and the last sample value is less than the threshold, one alarm is generated.
  • After the value of alarmStatus changes to valid, the first sample value is greater than or equal to the threshold, and the values of alarmStartupAlarm, risingAlarm and risingOrFallingAlarm are the same, an upper limit alarm is generated.

An alarm then can be generated only after the sample value reduces to a value below the threshold and reaches the value of alarmFallingThreshold.

This object is implemented as defined in the corresponding MIB files.

1.3.6.1.2.1.16.3.1.1.8

alarmFallingThreshold

Integer32

Read-create

The value of this object identifies the threshold of sample statistics

  • If the current sample value is less than or equal to the threshold and the last sample value is greater than the threshold, an upper limit alarm is generated.
  • After the value of alarmStatus changes to valid, the first sample value is less than or equal to the threshold and the values of alarmStartupAlarm, fallingAlarm, and risingOrFallingAlarm are the same.

An alarm then can be generated only after the sample value increases to a value beyond the threshold and reaches the value of alarmRisingThreshold.

This object is implemented as defined in the corresponding MIB files.

1.3.6.1.2.1.16.3.1.1.9

alarmRisingEventIndex

Integer32 (0..65535)

Read-create

The value of this object identifies the event index used when the upper limit alarm is generated.

If the value of alarmRisingEventIndex is 0 or the event is not in the definition range, the index association is not generated.

This object is implemented as defined in the corresponding MIB files.

1.3.6.1.2.1.16.3.1.1.10

alarmFallingEventIndex

Integer32 (0..65535)

Read-create

The value of this object identifies the event index used when the lower limit alarm is generated.

If the value of alarmRisingEventIndex is 0 or the event is not in the definition range, the index association is not generated.

This object is implemented as defined in the corresponding MIB files.

1.3.6.1.2.1.16.3.1.1.11

alarmOwner

OwnerString

Read-create

This object indicates the owner of the row.

This object is implemented as defined in the corresponding MIB files.

1.3.6.1.2.1.16.3.1.1.12

alarmStatus

EntryStatus

Read-create

This object indicates the status of the row.

This object is implemented as defined in the corresponding MIB files.

Creation Restriction

The creation restrictions are as follows:

  • When creating a row, you must set the value of alarmStatus to valid or createRequest.
    • After successful operation, a new alarm row is created, with alarmStatus as valid.
    • If you set the value of alarmStatus to createRequest when creating a row, a new alarm row is created, with alarmStatus as underCreation.
    When creating a row, you must configure all mandatory objects. You must set the proper value for alarmVariable. It is mandatory.

    You must set values for alarmRisingThreshold, alarmRisingEventIndex, alarmFallingThreshold, and alarmFallingEventIndex, irrespective of the value of alarmStartupAlarm.

    If no values are set for these objects, a new row can be created. When creating a user, you may not set the value of alarmOwner. In this case, the default value is null.

  • Only the variables with the syntaxes of Integer, Integer32, Counter32, Gauge32, and TimeTicks can be monitored. A row cannot be created if the variables are none of these types.

  • If the event corresponding to alarmRisingEventIndex or alarmFallingEventIndex does not exist, the alarm row cannot be in valid state.

  • When the corresponding event is created and is valid, the status of the alarm row is automatically updated to valid if all parameters of the alarm row are valid.
  • alarmTable contains up to 60 rows.

Modification Restriction

The modification restriction is as follows:

  • You can modify the values of alarmInterval, alarmVariable, alarmSampleType, alarmStartupAlarm, alarmRisingThreshold, alarmRisingEventIndex, alarmFallingThreshold, and alarmFallingEventIndex only when the value of alarmStatus is not valid.

  • You can modify the value of alarmOwner if the row exists.

Deletion Restriction

If you set the value of alarmStatus to invalid, the row is deleted from the table.

Access Restriction

The entries in this table can be read without restriction.

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Updated: 2019-07-19

Document ID: EDOC1000174090

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