ADC Release 3.1 user manual Nmic Protection Restoration

1152700 • Issue 1 • February 2001 • Section 2 Operation and Maintenance

DLP-725

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NMIC PROTECTION RESTORATION

Summary: This procedure describes the steps required to successfully restore NMIC protection to an operational status. The restoration process copies up to 50 files from a user selected NMIC to the other NMIC ensuring that both are synchronized with the same data. This procedure should be performed anytime the information on the NMICs are out of sync, indicated by a warning message that comes up on the GUI work space or by a flashing icon. When the NMICs are out of sync, the manual and forced protection switching functionality for the NMICs is disabled.

1.When the NMICs are out of sync, the message shown in Figure 725-1will appear stating that the NMIC protection restoration has been lost and the user will be forced to correct the NMIC unbalance before continuing with the tasks at hand. The user must select a NMIC with the most up to date information on it to restore the database from. The active NMIC is indicated by the (ACTIVE) status next to the NMIC slot number. Select the NMIC with the most reliable information on it (Slot2, or Slot4). No configuration changes will be allowed during the restoration period.

2.The estimated time of restoration is displayed which can take up to 15 minutes depending on the size of the ring. Select the OK button to proceed.

3.The window changes indicating that the restoration is in progress. A percentage of completion is also provided. Refer to Figure 725-2. Once completed, the protection NMIC operational status will be Up. Refer to DLP-724.

4.If the protection restoration process fails for any reason, a flashing icon will appear in the upper left corner of the workspace. Refer to Figure 725-3. The user can invoke the restoration process at anytime after a failure when the flashing icon appears. To do so, select the Fault pull down menu and NMIC Protection Restoration using the mouse, or by hitting the Alt+A and Alt+R keys. Refer to Figure 725-4. The flashing icon will remain until the user corrects the problem.

5.If the restoration is not needed and the user initiates this process, an information window will appear stating that protection restoration is not currently needed. Refer to Figure 725-5. Select the OK button to continue with other tasks, otherwise follow steps 1 through 3 to complete the manually initiated restoration process.

Stop! You have completed this procedure.

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2000, ADC Telecommunications, Inc.