Procedure 5-54: Clear "inc. line sync. ref. OOL" alarm
Before you begin
Prior to performing this procedure:
-
Refer to Before you begin and Required equipment in this chapter.
-
Refer to Laser safety and Electrostatic discharge in Chapter 1, Safety.
-
Select View → Equipment to determine if the Main slots are equipped with Very Large Fabric circuit packs.
Steps
Complete the following steps to clear inc. line sync. ref. OOL alarm.
1 |
From the WaveStar® CIT System View, click the Alarm List button, locate the inc. line sync. ref. OOL alarm in the resulting alarm list. | ||||||
2 |
Refer to the Probable Cause column (SYNCOOS or SYNC) in the alarm list, determine the affected OC-N line, and note the corresponding AID. | ||||||
3 |
Are there any inc. OCN alarms present in the alarm list?
| ||||||
4 |
If the Main slots are equipped with non-VLF circuit packs, select Configuration → Update System → Update Reference. Result: A dialog box appears asking you to confirm executing this command. Click Yes. | ||||||
5 |
From the System View, click the Alarm List button and click Refresh. | ||||||
6 |
Is the inc. line sync. ref. OOL alarm still present?
| ||||||
7 |
Important! A possible cause of the alarm at the local node is a synchronization problem at the far-end (upstream) node that causes the TX interfaces (at the far-end node) to transmit off frequency. Using office records, identify and log in to the far-end SONET network element supplying the optical signal. Reference: Procedure 6-2: Connect Personal Computer (PC) and establish WaveStar® CIT session | ||||||
8 |
Follow local procedures for addressing synchronization- and OCN-related conditions/alarms at the far-end SONET network element. | ||||||
9 |
If the Main slots are equipped with non-VLF circuit packs at the local node, select Configuration → Update System → Update Reference. Result: A dialog box appears asking you to confirm executing this command. Click Yes. | ||||||
10 |
From the System View at the local node, click the Alarm List button and click Refresh. | ||||||
11 |
Is the inc. line sync. ref. OOL alarm still present?
| ||||||
12 |
Disconnecting cables and/or replacing circuit packs may disrupt service. Before taking action, determine the extent of service disruption caused by disconnecting cables or replacing a circuit pack. Then, perform the action(s) deemed appropriate in light of the traffic being carried and the nature of the failure. Replace the affected local OC-N OLIU circuit pack. Reference: | ||||||
13 |
If the Main slots are equipped with non-VLF circuit packs, select Configuration → Update System → Update Reference. Result: A dialog box appears asking you to confirm executing this command. Click Yes. | ||||||
14 |
From the System View, click the Alarm List button and click Refresh. | ||||||
15 |
Is the inc. line sync. ref. OOL alarm still present?
End of steps |
