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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).
RSBBE

RSBBE

Performance Event Meaning

The RSBBE event indicates the background block error of the regenerator section (RS).

Performance Event Attributes

Performance Event ID Performance Event Type

0x01

SDH performance event

Impact on the System

If bit errors occur in the services, identify the causes and rectify the fault immediately. Otherwise, alarms will be generated and the signal transmission quality will be affected. If bit errors exceed the B1 bit error threshold-crossing threshold and degrade threshold, the B1_EXC and B1_SD alarms will be generated.

Possible Causes

The RSBBE event is an errored block excluding bit errors during the regenerator section unavailable time and regenerator section severely errored second.

External causes:

  • The fiber performance is degraded, and the fiber has high attenuation.

  • The fiber connector is dirty or incorrect.

  • The equipment is poorly grounded.

  • There is a severe interference source around the equipment.

  • The working temperature is high or low, and the opposite equipment cannot tolerate such temperature.

Equipment problems:

  • The signal attenuation on the receive side of the line board is excessive, the transmit circuit at the opposite end is faulty, or the receive circuit at the local end is faulty.

  • The synchronization performance of the clock is poor.

  • The cross-connect unit and the line board poorly match.

  • The board becomes faulty, or the performance of the board is degraded.

Relevant Alarms

Alarm Name Correlation

B1_EXC

B1 bit errors crossing the threshold

B1_SD

Signals degraded (B1)

Procedure

  1. Eliminate external causes, such as poor grounding, high operating temperature, low or high received optical power of the line board. Then, check whether bit errors occur on the line boards.
  2. If all the line boards of an NE have bit errors, the clock unit may be faulty. In this case, replace the CXL board.
  3. If only a line board reports that bit errors exist, the local line board may be faulty or that the opposite NE or fibers are faulty. Perform a loopback to locate the faulty board and replace it.

Reference

None.

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Updated: 2019-01-21

Document ID: EDOC1100020975

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