Hi there!
This time, I will share with you a case about How to handle the SERVICE_OUTAGE alarm report from U2000 NMS.
Issue Description
we often find SERVICE_OUTAGE alarm report in U2000, and the "Alarm source" is OSS, it belongs to the U2000 side alarm, but "location information" is the corresponding NE information，we can see as below：
Alarm
SERVICE_OUTAGE
Description
After alarms indicating faults that may affect the service communication are located to a path, the U2000 issues a command to the equipment to check the servicecommunication. If the service is interrupted, the U2000 generates the SERVICE_OUTAGE alarm to notify the network maintenance personnel. The alarm is displayed as Major on the U2000. It can be synchronized and acknowledged, but cannot be deleted.
Impact on the System
After the alarm is generated, you can infer that the service is interrupted and the fault needs to be processed immediately.
Possible Causes
After alarms of the Critical or Major level on the equipment are located to a path, the U2000 issues a command to the equipment to check the service communication. If the service is interrupted, the U2000 generates the SERVICE_OUTAGE alarm.
The SERVICE_OUTAGE alarm is generated as follows:
1、 Alarm of the Critical or Major level is generated on the equipment. In addition, the alarms are located on the path of the U2000.
2、After the alarms are located on the path, the SERVICE_OUTAGE alarm is triggered.
3、The U2000 issues a command to the equipment to check the service communication. If the service is interrupted, the U2000 generates the SERVICE_OUTAGE alarm.
Procedure
1、Right-click the alarm and perform one of the following operations:
a、In the case of the MSTP E2E service, choose Alarm Affect Object > Trails from the shortcut menu.
b、In the case of the packet service, choose Alarm Affect Object > PWE3 Service from the shortcut menu.
2、Locate the path of the alarms. Right-click the affected path on the path management interface, and then choose Alarm > Current Alarm to view all the current alarms of the path.
3、Take further measures according to the other alarms of the path. For example, handle the MUT_LOS and R_LOS alarms.
That's all, I welcome everyone to leave a message and exchange in the comment area!
Thank you！
