20243 Trace Flag Mismatch on the Lower-Order Path of the Optical Port (LPTIM)

Description

The lower order path trace byte J2 is mismatched. Byte J2 is used to repeatedly send the identifier of lower order path access point, so the receiving end can confirm the continuous connection to the transmitting end.

Attribute

Alarm ID	Alarm Severity	Alarm Type
20243	Major	Fault

Parameters

ID	Name	Meaning
1	Subrack No.	Subrack No.
2	Slot No.	Slot No.
3	Cpu No.	CPU No.
4	Tributary Unit No.	0 - 62(for E1 mode), 0 - 83(for T1 mode).
5	Site No.	The IDs of all sites whose OMLs are on the faulty E1/T1. If BTS are cascade connected,a maximum of 4 sites are shown.Only Abis E1/T1 alarm has this parameter.
6	Site Name	The Names of all sites whose OMLs are on the faulty E1/T1. If BTS are cascade connected,a maximum of 4 sites are shown.Only Abis E1/T1 alarm has this parameter.
7	Alarm Attribute	0=Normal, Alarms period are longer than the Transient Threshold. 1=Transient Count, The times and the period of the alarms whose periods are shorter than the Transient Threshold are summed up. If the sum result is longer than the Alarm Occurrence Period Threshold or Alarm Occurrence Times Threshold, an alarm so called Transient Count Alarm is triggered. Because Transient Count Alarm is based on accumulative result, the recovery of the alarm may occur at least one Summing Cycle later. The Summing Cycle can be query by MML "LST STATSLDWIN".

Impact on the System

None.

System Actions

None.

Possible Causes

The J2 byte received at the local end is inconsistent with what is expected.

Procedure

Set the J2 byte at the local end to the same value with that transmitted from the peer board. Check whether the alarm is cleared.
Y => The alarm is cleared. The alarm handling is complete.

N => The alarm persists. Please contact Huawei Customer Service Center.