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Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, R7.0
Chapter 2 Alarm Troubleshooting
2.10.4 Generic Signal and Circuit Procedures
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 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
Step 1 Log into a node on the network. If you are already logged in, continue with Step 2.
Step 2 Double-click the reporting card in CTC to display the card view.
Step 3 Click the Maintenance > EC1 > Loopback 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 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.
Step 1 Log into a node on the network. If you are already logged in, continue with Step 2.
Step 2 Double-click the reporting card in CTC to display the card view.
Step 3 Click the Maintenance > Loopback 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, for example,
OOS,MT.
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.