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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
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 EC-1 Port Loopback
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 > EC1 > Loopback 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 Ethernet Card Loopback Circuit
This procedure applies to CE-100T-8 or ML-100T-8 cards.
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 > Loopback 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, for example,
OOS,MT.
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.