EFM_1.3.6.1.4.1.2011.5.25.136.1.6.29 loopbackfailed

Trap Buffer Description

Interface starts loopback failed. (IfIndex=[IfIndex],IfName=[IfName])

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

Trap Attributes

Trap Attribute	Description
Alarm or Event	Event
Trap Severity	Notice
Mnemonic Code	LOOPBACKFAILEDEVENT
Trap OID	1.3.6.1.4.1.2011.5.25.136.1.6.29
MIB	HUAWEI-ETHOAM-MIB
Alarm ID	This is an event trap and does not involve alarm ID.
Alarm Name	This is an event trap and does not involve alarm name.
Alarm Type	This is an event trap and does not involve alarm type.
Raise or Clear	This is an event trap and does not involve alarm generation or clearance.
Match trap	-

Trap Buffer Parameters

Parameter	Description
IfIndex	Interface index.
IfName	Interface name.

VB Parameters

VB OID	VB Name	VB Index
1.3.6.1.2.1.2.2.1.2	ifDescr	ifIndex

Impact on the System

EFM OAM loopback cannot be initiated.

Possible Causes

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

Procedure

1. 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.

2.Then check whether the alarm is cleared.

If the alarm persists, go to Step 3.

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.

4.Check the physical link. If the physical link is faulty, see Physical Interconnection Troubleshooting for details about how to troubleshoot the link fault.

5.Collect the alarm information, log information, and configuration information, and then contact technical support personnel.