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Cisco ONS 15310-MA SDH Troubleshooting Guide, Release 9.0
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Chapter 2 Alarm Troubleshooting
Alarm Procedures
A green ACT LED indicates an active card.
d. Verify that the Admin State column lists the port as unlocked.
e. If the Admin State column lists the port as locked, maintenance or locked, disabled, click the column
and click unlocked from the drop-down list. Click Apply.
Note 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.
Step 7 For all nodes, if the card is in service, use an optical test set to determine whether signal failures are
present on fiber terminations. For specific procedures to use the test set equipment, consult the
manufacturer.
Caution Using an optical test set disrupts service on the STM-N port. It could be necessary to manually switch
traffic carrying circuits over a protection path. See the “2.9.1 Protection Switching, Lock Initiation, and
Clearing” section on page 2-146 for commonly used switching procedures.
Step 8 If no signal failures exist on terminations, measure power levels to verify that the loss is within the
parameters of the receiver. Refer to the Cisco ONS 15310-MA SDH Reference Manual for card power
levels.
Step 9 If loss is within parameters, ensure that fiber connectors are securely fastened and properly terminated.
Step 10 If fiber connectors are properly fastened and terminated, complete the “Soft- or Hard-Reset a Controller
Card” procedure on page 2-152.
Caution Avoid soft-resetting multiple ONS 15310-MA SDH cards at one time; doing so might cause an
unexpected traffic hit.
Wait ten minutes to verify that the card you reset completely reboots.
Step 11 If the controller card reset does not clear the alarm, delete the problematic RS-DCC termination by
completing the following steps:
a. From card view, click View > Go to Previous View if you have not already done so.
b. Click the Provisioning > Comm Channels > RS-DCC tabs.
c. Highlight the problematic DCC termination.
d. Click Delete.
e. Click Yes in the Confirmation Dialog box.
Step 12 Recreate the RS-DCC termination. Refer to the “Turn Up Network” chapter in the Cisco ONS15310-MA
SDH Procedure Guide for procedures.
Step 13 Verify that both ends of the DCC have been recreated at the optical ports.
Step 14 If the alarm has not cleared, call Cisco TAC (1-800-553-2447).
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