Cisco Systems ONS 15310-CL, ONS 15310-MA Clear an OC-N Port Facility or Terminal Loopback Circuit, Clear an OC-N Port XC Loopback Circuit, Clear a DS-3 or DS-1 Port Loopback Circuit

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Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, R7.0
Chapter2 Alarm Troubleshooting
2.10.4 Generic Signal and Circuit Procedures
d. Verify that the Disable OSPF on Link check box is unchecked.
e. Click OK.
Clear an OC-N Port Facility or Terminal Loopback Circuit
Step1 Log into a node on the network. If you are already logged in, continue with Step2.
Step2 Double-click the 15310-CL-CTX or CTX2500 card in CTC to display the card view.
Step3 Click the Maintenance > Optical > Loopback > Port tabs.
Step4 In the Loopback Type column, determine whether any port row shows a state other than None.
Step5 If a row contains another state besides None, click in the column cell to display the drop-down list and
select None.
Step6 In the Admin State column, determine whether any port row shows a state other than IS.
Step7 If a row shows a state other than IS, click in the column cell to display the drop-down list and select IS.
Step8 Click Apply.
Note If ports managed into IS administrative state are not receiving signals, the LOS alarm is either
raised or remains, and the port service state transitions to OOS-AU,FLT.
Clear an OC-N Port XC Loopback Circuit
Step1 Log into a node on the network. If you are already logged in, continue with Step2.
Step2 Double-click the reporting card in CTC to display the card view.
Step3 Click the Maintenance > Optical > Loopback > SONET STS tabs.
Step4 Uncheck the XC loopback check box.
Step5 Click Apply.
Clear a DS-3 or DS-1 Port Loopback Circuit
Step1 Log into a node on the network. If you are already logged in, continue with Step2.
Step2 Double-click the 15310-CL-CTX or CTX2500 card in CTC to display the card view.
Step3 Click the Provisioning > DS3 or the Maintenance > DS1 tabs.
Step4 In the Loopback Type column, determine whether any port row shows a state other than None.
Step5 If a row contains another state besides None, click in the column cell to display the drop-down list and
select None.
Step6 In the Admin State column, determine whether any port row shows a state other than IS.