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Alarm Handling

CloudEngine 12800 and 12800E V200R003C00

This document provides the explanations, causes, and recommended actions of alarms on the product.

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Trap Information Description

Trap Information Description


Two parts are included:
  • Trap message: indicates the character string that describes the trap. It is displayed on a device.
  • Trap meaning: indicates the meaning of the trap.

Trap Attributes

Table 3-2 describes trap attributes.

Table 3-2  Trap Attribute



Alarm or Event

Indicates the trap type, which can be:
  • Alarm
  • Event

Trap Severity

Indicates to what extent the fault affects the performance of the device.

Mnemonic Code

Indicates the digest of trap content for the ease of memorization.

Trap OID

Indicates the object ID defined in the MIB.

Alarm ID

Indicates the alarm ID defined by the network management system (NMS).

Alarm Type

Indicates the type that the fault is related to.

  • communicationsAlarm

    Indicates that a fault occurs in the process associated with the data transfer. For example, an alarm is generated due to the communication failure between the NEs, between the NE and the OS, or between the OSs.

  • qualityOfServiceAlarm

    Indicates that the QoS decreases. For example, an alarm is generated due to congestion, performance decrease, high resource occupancy, or bandwidth shortage.

  • processingErrorAlarm

    Indicates that an error occurs when the software or process handles data. For example, an alarm is generated due to the software error, memory overflow, version mismatch, or abortion of the program.

  • equipmentAlarm

    Indicates that a fault occurs in physical resources, including power supply, fan, processor, clock, and I/O interfaces.

  • environmentalAlarm

    Indicates that the environment cannot meet the requirements for the equipment to operate normally. For example, an alarm is generated due to improper temperature, humidity, or ventilation.


The alarm type is valid only for alarm traps but not event traps.

Raise or Clear

Indicates whether a fault occurs or is rectified:
  • Raise: A fault occurs.
  • Clear: A fault is rectified.
  • None: A fault may occur or be rectified.

Raise or Clear is valid only for alarm traps but not event traps.

Match trap

Indicates the match trap for a generated or cleared alarm.


The match trap is valid only for alarm traps but not event traps.


Indicates the parameters included in the trap. Parameters in a trap help in locating the fault and analyzing the trap.

VB Information Parameter

The variable binding (VB) information parameter applies to alarm location and connection to a third-party NMS. The VB information parameter includes:
  • VB OID
  • VB Name
  • VB Index

Impact on the System

Analyzes the impact of this trap on system.

Possible Causes

This part describes the causes for a trap generated by the system.


This part describes associated traps to help in finding out the root cause for the trap and the causes for the associated traps.

Updated: 2019-05-05

Document ID: EDOC1100004139

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