Cisco ONS 15454 Troubleshooting Manual page 470

2.9.5 Generic Signal and Circuit Procedures
d.
e.
Clear an OC-N Card Facility or Terminal Loopback Circuit
Log into a node on the network.
Step 1
Double-click the reporting card in CTC to open the card view.
Step 2
Click the Maintenance > Loopback > Port tabs.
Step 3
In the Loopback Type column, determine whether any port row shows a state other than None.
Step 4
Step 5 If a row contains another state besides None, click in the column cell to display the drop-down list and
select None.
In the Admin State column, determine whether any port row shows a state other than IS.
Step 6
If a row shows a state other than IS, click in the column cell to display the drop-down list and select IS.
Step 7
Click Apply.
Step 8
Note
Clear an OC-N Card Cross-Connect (XC) Loopback Circuit
Log into a node on the network.
Step 1
Double-click the reporting card in CTC to open the card view.
Step 2
Click the Maintenance > Loopback > SONET STS tabs.
Step 3
Uncheck the XC Loopback check box.
Step 4
Step 5 Click Apply.
Clear a DS3XM-6, DS3XM-12, or DS3E-12 Card Loopback Circuit
Log into a node on the network.
Step 1
Double-click the reporting card in CTC to open the card view.
Step 2
Click the Maintenance > DS3 tabs or the Maintenance > DS1 tabs.
Step 3
In the Loopback Type column, determine whether any port row shows a state other than None.
Step 4
If a row contains another state besides None, click in the column cell to display the drop-down list and
Step 5
select None.
In the Admin State column, determine whether any port row shows a state other than IS.
Step 6
Cisco ONS 15454 Troubleshooting Guide, R8.5
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Verify that the Disable OSPF on Link check box is unchecked.
Click OK.
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.
Chapter 2 Alarm Troubleshooting
November 2009