Cisco ONS 15310-MA Troubleshooting Manual page 155

Chapter 2 Alarm Troubleshooting
Note
Clear an STM-N Port XC Loopback Circuit
Log into a node on the network. If you are already logged in, continue with
Step 1
Step 2 Double-click the reporting card in CTC to display the card view.
Step 3 Click the Maintenance > Optical > Loopback > SDH VC tabs.
Step 4 Uncheck the XC loopback check box.
Click Apply.
Step 5
Clear a DS-3 or E1 Port Loopback Circuit
Step 1 Log into a node on the network. If you are already logged in, continue with
Step 2 Double-click the ONS 15310-MA SDH in CTC to display the card view.
Click the Provisioning > DS3 or the Maintenance > E1 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 unlocked.
Step 6
If a row shows a state other than unlocked, click in the column cell to display the drop-down list and
Step 7
select unlocked.
Click Apply.
Step 8
Note
Clear an E3 Port Loopback
Step 1 Log into a node on the network. If you are already logged in, continue with
Step 2 Double-click the reporting card in CTC to display the card view.
Click the Maintenance > E3 > Loopback tabs.
Step 3
In the Loopback Type column, determine whether any port row shows a state other than None.
Step 4
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If ports managed into unlocked administrative state are not receiving signals, the LOS alarm is
either raised or remains, and the port service state transitions to unlocked-disabled,FLT.
If ports managed into unlocked administrative state are not receiving signals, the LOS alarm is
either raised or remains, and the port service state transitions to unlocked-disabled,FLT.
Frequently Used Alarm Troubleshooting Procedures
Cisco ONS 15310-MA SDH Troubleshooting Guide, Release 9.0
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