No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

OSN 500 550 580 V100R008C50 Alarms and Performance Events Reference 02

Rate and give feedback:
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).
ETH_EFM_LOOPBACK

ETH_EFM_LOOPBACK

Description

The ETH_EFM_LOOPBACK alarm indicates that the P2P OAM protocol is enabled and the local end initiates a loopback or performs a loopback at the request from the opposite end. If the ports at both ends can respond to the loopback:

  • The local OAM port receives the remote loopback control enable command issued by the opposite OAM port, responds to the command, and reports the corresponding alarm. The opposite port reports the alarm indicating initiation of the loopback.
  • The local OAM port receives the remote loopback control disable command issued by the opposite OAM port, responds to the command, and clears the corresponding alarm. The opposite port clears the alarm indicating initiation of the loopback.

Attribute

Alarm Severity Alarm Type

Major

Communication alarm

Parameters

When you view an alarm on the network management system, select the alarm. In the Alarm Details field display the related parameters of the alarm. The alarm parameters are in the following format: Alarm Parameters (hex): parameter1 parameter2...parameterN. For details about each parameter, refer to the following table.

Name Meaning
Parameter 1

Indicates the loopback state.

  • 0x01: Indicates initiating a loopback.
  • 0x02: Indicates performing a loopback at the request from the opposite end.

Impact on the System

Services are in the loopback state.

Possible Causes

Possible causes of the ETH_EFM_LOOPBACK alarm are as follows:

  • The local port initiates a loopback and the opposite port performs a loopback at the request from the local end.
  • The opposite port initiates a loopback and the local port performs a loopback at the request from the opposite end.

Procedure

  1. On the U2000, query the alarm information and locate the port that reports the alarm.
  2. Set Remote Side Loopback Response of the port to Disabled.
  3. On the U2000, query the alarm information about the opposite NE and locate the port that reports the alarm.
  4. Set Remote Side Loopback Response of the port to Disabled.

Related Information

None.

Translation
Download
Updated: 2019-01-21

Document ID: EDOC1100020975

Views: 83796

Downloads: 156

Average rating:
This Document Applies to these Products
Related Documents
Related Version
Share
Previous Next