PTP_1.3.6.1.4.1.2011.5.25.187.5.13 hwPtpTimeLockFail

Trap Buffer Description

The time lock status is failed. (hwPtpTimeLockStatus=[hwPtpTimeLockStatus], hwPtpTimeLockFailReason=[hwPtpTimeLockFailReason])

A time out-of-lock alarm is generated.

In VS mode, this trap is supported only by the admin VS.

Trap Attributes

Trap Attribute	Description
Alarm or Event	Alarm
Trap Severity	Critical
Mnemonic Code	hwPtpTimeLockFail
Trap OID	1.3.6.1.4.1.2011.5.25.187.5.13
MIB	HUAWEI-PTP-MIB
Alarm ID	0x09af000b
Alarm Name	hwPtpTimeLockFail
Alarm Type	equipmentAlarm
Raise or Clear	Raise
Match trap	PTP_1.3.6.1.4.1.2011.5.25.187.5.14 hwPtpTimeLockFailResume

Trap Buffer Parameters

Parameter	Description
hwPtpTimeLockStatus	Time lock status. The value can be: unlock(0). lock(1).
hwPtpTimeLockFailReason	Reason for time out-of-lock. The value can be: normal(0) frequencyUnLock(1) nonTracking(2) offsetSumExceed(3) timestampsUnChange(4) interChassisUnLock(5)

VB Parameters

VB OID	VB Name	VB Index
1.3.6.1.4.1.2011.5.25.187.1.86	hwPtpTimeLockStatus	-
1.3.6.1.4.1.2011.5.25.187.1.144	hwPtpTimeLockFailReason	-

Impact on the System

The system fails in time synchronization.

Possible Causes

Cause 1: The frequency lock fail.
Cause 2: The time is not in the tracking state, no available source.
Cause 3: The offset sum exceed the threshold.
Cause 4: The timestamps of ptp message remains unchanged.
Cause 5: The Inter-chassis time lock fail.

Procedure

Cause 1: The frequency lock fail.
1. Run the display clock source command to check whether the clock synchronization source has changed.

-If so, perform Step 2.

-If not, go to Step 3.

2. Run the display clock config command to check whether the clock source configuration has changed.

-If so, configure attributes related to the local clock. For details, see Physical Layer Clock Synchronization Configuration in the Configuration Guide.

-If not, go to Step 3.

3. Collect alarm information, log information and configuration information and contact technical support personnel for processing.

4. End.
Cause 2: The time is not in the tracking state, no available source.
1. Run the display PTP all command to Check the interface whose clock status is slave, that is, to Check the interface whose state item of port info in the display information is slave, and then execute the command display this interface in the interface view to check whether the port link status is up.

-If so, perform Step 2.

-If not, go to Step 4.

2. Run the display current configuration command to check whether the PTP configuration changes.

-If so, go to Step 3.

-If not, go to Step 5.

3. Reconfigure the PTP related properties. For specific operation, please refer to the @@@System Management-1588v2 configuration@@@ section in the configuration manual. Then, go to Step 6.

4. Handle the link failure. For troubleshooting steps, please refer to general service router troubleshooting interface physical connection. Check whether the fault is cleared.

-If so, go to Step 6.

-If not, go to Step 5.

5. Collect alarm information, log information and configuration information and contact technical support personnel for processing.

6. End.
Cause 3: The offset sum exceed the threshold.
1. Run the reset PTP statistics all command to clear the timestamp statistics, and then run the display PTP all command multiple times to check whether the time stamp statistics max (t2-t1) and min (t2-t1) are within 500ns compared with the values of realtime (t2-t1).

-If so, perform Step 2.

-If not, go to Step 4.

2. Run the display current configuration command to check whether the PTP configuration changes.

-If so, go to Step 3.

-If not, go to Step 4.

3. Reconfigure the PTP related attributes. For details, see 1588v2 Configuration in System Management of the configuration guide. Then, go to Step 5.

4. Collect alarm information, log information and configuration information and contact technical support personnel for processing.

5. End.
Cause 4: The timestamps of ptp message remains unchanged.
1. Run the reset PTP statistics all command to clear the timestamp statistics, and then run display PTP all command several times to check whether max (t2-t1) and min (t2-t1) are the same as realtime (t2-t1) and remain unchanged.

-If so, perform Step 2.

-If not, go to Step 4.

2. Run the display PTP all config command to check whether the PTP packet rate is correct.

-If so, go to Step 4.

-If not, go to Step 3.

3. Reconfigure the PTP related attributes. For details, see 1588v2 Configuration in System Management of the configuration guide. Then, go to Step 5.

4. Collect alarm information, log information and configuration information and contact technical support personnel for processing.

5. End.
Cause 5: The Inter-chassis time lock fail.
1. Run the display current-configuration command to check whether configurations of clock-related interfaces are correct.
- If the configurations are correct, go to Step 2.
- If the configurations are not correct, go to Step 3.
2. Check whether inter-chassis cable connections are correct.
- If the connections are correct, go to Step 5.
- If the connections are not correct, go to Step 4.
3. Reconfigure clock-related interfaces. For details, see Physical Layer Clock Synchronization Configuration in the configuration guide. Check whether the alarm is cleared.
- If the alarm is cleared, go to Step 6.
- If the alarm persists, go to Step 5.
4. Troubleshoot connection faults, and check whether the alarm is cleared.
- If the alarm is cleared, go to Step 6.
- If the alarm persists, go to Step 5.
5. Collect trap, log, and configuration information, and contact technical support personnel for processing.

6. End.