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OSN 500 550 580 V100R008C50 Alarms and Performance Events Reference 02

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
SUMIOP

SUMIOP

Description

The SUMIOP indicates the total input optical power. This performance event includes three items: SUMIOPMAX, SUMIOPMIN, and SUMIOPCUR. The SUMIOPMAX item indicates the maximum value of the total input optical power. The SUMIOPMIN item indicates the minimum value of the total input optical power. The SUMIOPCUR item indicates the current value of the total input optical power.

Attribute

Performance Event ID Performance Event Type

SUMIOPMAX: 0xD2

Equipment function

SUMIOPMIN: 0xD3

SUMIOPCUR: 0xD4

Impact on System

  • If the total input optical power is too high, the optical modules on the boards of both the local end and the downstream station may be damaged. Consequently, the services may encounter bit errors or even be interrupted.
  • If the total input optical power is too low, the single-channel optical signals output from the board may be lost. Consequently, the services may encounter certain bit errors or even be interrupted.

Generation Principle and Possible Causes

The total input optical power is detected by the hardware circuits. After the board software reads the input power value that is detected by the hardware circuits, the AD module computes the actual input power value that is reported.

Related Alarms

Alarm Name

Correlation

IN_PWR_HIGH

The input optical power is too high. The value of the detected input optical power is more than the upper-threshold and the board reports the alarm in the following cases:
  • The value of the input optical power is more than the upper-threshold.
  • The optical power fails to be detected correctly.
  • The optical module is faulty.

SUM_INPWR_HI

The total input optical power is too high. When the total value of the detected total input optical power is more than the upper-threshold, the board reports the alarm.

IN_PWR_LOW

The input optical power is too low. The value of the detected input optical power is less than the lower-threshold and the board reports the alarm in the following cases:
  • The value of the input optical power is less than the lower-threshold.
  • The optical power fails to be detected correctly.
  • The optical module is faulty.

SUM_INPWR_LOW

The total input optical power is too low. When the total value of the detected input optical power is less than the lower-threshold, the board reports the alarm.

Procedure

  1. If the current performance value is 2 dB or more than the history performance value but no alarm is reported, and if the power change is not caused by normal operations (such as capacity expansion or upgrading), see the method of handling the IN_PWR_HIGH alarm to handle the performance event.
  2. If the current performance value is 2 dB or more less than the history performance value but no alarm is reported, and if the power change is not caused by normal operations (such as capacity expansion or upgrading), see the method of handling the IN_PWR_LOW alarm to handle the performance event.

Related Information

None.

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Updated: 2019-01-21

Document ID: EDOC1100020975

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