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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).
E1_LLOSS_SDH

E1_LLOSS_SDH

Performance Event Meaning

The E1_LLOSS_SDH performance event indicates a count of E1 line loss-of-signal seconds.

Performance Event Attributes

Performance Event ID Performance Event Type

0x0F

SDH performance event

Impact on the System

If bit errors occur in the services, you need to find out the causes and troubleshoot the problem in time. Otherwise, alarms will be generated and the signal transmission quality will be affected.

Possible Causes

The E1_LLOSS_SDH is a performance event indicating a count of E1 line loss-of-signal seconds. This performance event is reported if the count of E1 line loss-of-signal seconds crosses the preset threshold.

External causes:

  • The cable performance is degraded and the cable has extremely high attenuation.
  • The cable connector is dirty or incorrect.
  • The equipment is poorly grounded.
  • There is a strong interference source around the equipment.
  • The working temperature is extremely high or extremely low, and the opposite equipment cannot tolerate such temperature.

Equipment problems:

  • Wrong service code types.
  • Board failure or performance deterioration.

Related Alarms

T_ALOS

Procedure

  1. Refer to E1_LCV_SDH.

Reference

None.

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Updated: 2019-01-21

Document ID: EDOC1100020975

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