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Cisco ONS 15454 Troubleshooting Guide, R8.5
November 2009
Chapter 2      Alarm Troubleshooting
2.9.5    Generic Signal and Circuit Procedures
d. Verify that the Disable OSPF on Link check box is unchecked.
e. Click OK.
Clear an OC-N Card Facility or Terminal Loopback Circuit
Step 1 Log into a node on the network. 
Step 2 Double-click the reporting card in CTC to open the card view.
Step 3 Click the Maintenance > Loopback > Port tabs. 
Step 4 In the Loopback Type column, determine whether any port row shows a state other than None.
Step 5 If a row contains another state besides None, click in the column cell to display the drop-down list and 
select None.
Step 6 In the Admin State column, determine whether any port row shows a state other than IS. 
Step 7 If a row shows a state other than IS, click in the column cell to display the drop-down list and select IS.
Step 8 Click Apply.
Note If a port in the IS admin state does not receive a signal, the LOS alarm is raised and the port 
service state transitions to OOS-AU,FLT.
Clear an OC-N Card Cross-Connect (XC) Loopback Circuit
Step 1 Log into a node on the network. 
Step 2 Double-click the reporting card in CTC to open the card view.
Step 3 Click the Maintenance > Loopback > SONET STS tabs.
Step 4 Uncheck the XC Loopback check box.
Step 5 Click Apply.
Clear a DS3XM-6, DS3XM-12, or DS3E-12 Card Loopback Circuit
Step 1 Log into a node on the network. 
Step 2 Double-click the reporting card in CTC to open the card view.
Step 3 Click the Maintenance > DS3 tabs or the Maintenance > DS1 tabs.
Step 4 In the Loopback Type column, determine whether any port row shows a state other than None.
Step 5 If a row contains another state besides None, click in the column cell to display the drop-down list and 
select None.
Step 6 In the Admin State column, determine whether any port row shows a state other than IS.