In the alarm list, are there any inc. OCN or inc. STSN alarms present?

From the System View, click the Alarm List button and click Refresh.

Is the Ring Incomplete alarm still present?

Important!

The port Application parameter of the OC-N ports that interface with the BLSR must be provisioned 2F BLSR.

At each node in the BLSR, use View → Equipment to access the required OC-N ports and verify that the port Application parameter is provisioned 2F BLSR.

If required, use Configuration → Equipment to access the required OC-N ports and provision the port Application parameter 2F BLSR.

From the System View, click the Alarm List button and click Refresh.

Is the Ring Incomplete alarm still present?

From the System View, select View → Protection and the Ptn Grp tab, select the appropriate 2F BLSR Protection Group, and click Select.

Result:

The View Protection window opens.

From the View Protection window, select the Provisionable Parameters tab.

Is Automatic Ring Discovery enabled all nodes in the ring?

From the System View, select Configuration → Equipment and the Ptn Grp tab, select the appropriate 2F BLSR Protection Group, and click Select.

Result:

The protection group parameters appears.

From the Configure Equipment window, select the provisioning you want for Automatic Ring Discovery on your ring, either Enabled or Disabled. Click Apply and Close.

Repeat Step 10 and Step 11 for all nodes in the ring.

From the System View, click the Alarm List button and click Refresh.

Is the Ring Incomplete alarm still present?

From the System View, select Reports → Remote NE Alarm List.

Result:

The Remote NE Alarm List appears.

Are there any alarms present on the remote NEs?

In the alarm list, is there an inconsistent DCC values or section DCC channel failed alarm?

From the System View, click the Alarm List button and click Refresh.

Is the Ring Incomplete alarm still present?

From the System View, select View → Ring Map → Ring Map. Select the required ring and click Select. Verify that the ring map was provisioned correctly.

Result:

The Ring Map window opens.

Is either the West Link or the East Link Isolated?

From the System View, click the Alarm List button and click Refresh.

Is the Ring Incomplete alarm still present?

Check the optical signal level and clean the cable ends if needed. If no problem is found, check the line build-outs (LBOs).

Reference:

Procedure 6-11: Clean optical fibers, dual LC adapters and LC lightguide buildouts (LBOs)

From the System View, click the Alarm List button and click Refresh.

Is the Ring Incomplete alarm still present?

Are the near-end and the far-end OLIU circuit packs equipped with pluggable transmission modules?

NOTICE Service-disruption hazard

Disconnecting cables and/or replacing pluggable transmission modules may disrupt service.

Before taking action, determine the extent of service disruption caused by disconnecting cables or replacing a pluggable transmission module. Then, perform the action(s) deemed appropriate in light of the traffic being carried and the nature of the failure.

Replace the affected near-end and then the far-end pluggable transmission module.

Reference:

Procedure 6-8: Replace pluggable transmission module

From the System View, click the Alarm List button and click Refresh.

Is the Ring Incomplete alarm still present?

NOTICE Service-disruption hazard

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 near-end and then the far-end OLIU circuit pack.

Reference:

• Procedure 6-5: Replace high-speed main OLIU circuit pack

• Procedure 6-6: Replace low-speed function unit OLIU circuit pack

From the System View, click the Alarm List button and click Refresh.

If the Ring Incomplete condition is still present, contact your next level of support.

End of steps