EFM_1.3.6.1.4.1.2011.5.25.136.1.6.29 hwDot3ahEfmLoopbackFailed

Description

EFM/4/LOOPBACKFAIL:OID [OID] Interface starts loopback failed. (IfIndex=[INTEGER],IfName=[STRING])

802.3ah loopback failed after no response to an 802.3ah loopback request was received within a specified period of time.

Alarm ID	Alarm Severity	Alarm Type
1.3.6.1.4.1.2011.5.25.136.1.6.29	Warning	qualityOfServiceAlarm (3)

Name	Meaning
oid	Indicates the MIB object ID of the alarm.
IfIndex	Interface index
IfName	Interface name

EFM OAM loopback cannot be initiated.

802.3ah loopback failed after no response to an 802.3ah loopback request was received within a specified period of time.

Check whether the remote interface denies the remote loopback request from the local end.
Run the display current-configuration command. Check whether the efm loopback ignore-request command is used.
- If this command is used, the remote interface denies the request. Run the undo efm loopback ignore-request command to enable the remote interface to receive the remote loopback request. Then go to Step 2.
- If this command is not used, the remote interface is able to receive the request. Then go to Step 3.
Then check whether the alarm is cleared.
- If the alarm is cleared, go to Step 6.
- If the alarm is not cleared, go to Step 3.
Check the EFM status.
Run the display efm session all command. Check whether the value of the EFM State field is detect.
- If the value of the EFM State field is detect, go to Step 5.
- If the value of the EFM State field is not detect, go to Step 4.
Check whether the physical link is working properly.
- If the physical link is working properly, go to Step 5.
- If the physical link is not working properly, troubleshoot the link fault (for details, see "Physical Interconnection Troubleshooting").
Collect alarm information and configuration information, and then contact technical support personnel.
End.

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