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Cisco ONS 15327 Troubleshooting Guide, R3.4
March 2004
Chapter 2 Alarm Troubleshooting
Alarm Procedures
Step 2 Find the node ID by completing the “Identify a Ring ID or Node ID Number” procedure on page 2-125.
Step 3 Repeat Step 2 for all the nodes on the ring.
Step 4 If two nodes have an identical node ID number, complete the “Change a Node ID Number” procedure
on page 2-126 so that each node ID is unique.
Step 5 If the alarm does not clear, log onto http://www.cisco.com/tac for more information or call TAC to report
a service-affecting problem (1-800-553-2447).
2.6.136 PROTNA
• Minor (MN), Non-Service Affecting (NSA)
The Protection Unit Not Available (PROTNA) alarm is caused by an OOS or failed protection card when
an XTC that is provisioned as part of a protection group is not available. Unavailable protection can
occur when a card is reset, but the alarm clears as soon as the card is back in service. The alarm clears
if the device or facility is brought back in service.
Caution Always use the supplied electrostatic discharge wristband when working with a powered ONS 15327.
Plug the wristband cable into the ESD jack located between the top high-speed and XTC slots.
Procedure: Clear the PROTNA Alarm
Step 1 If the PROTNA alarm occurs and does not clear, and if the alarm is raised against an XTC, ensure that
there is a redundant control card installed and provisioned in the chassis.
Step 2 If the alarm is raised against a traffic card, verify whether the ports have been taken out of service:
a. In CTC, double-click the reporting card to display the card view (if the card is not a cross-connect
card).
b. Click the Provisioning tab.
c. Click the State of any in-service ports.
d. Choose OOS to take the ports out of service.
Step 3 Complete the “Reset a Traffic Card in CTC” procedure on page 2-129 for the reporting card:
• While the card resets, the FAIL LED on the physical card blinks and turns off.
• While the card resets, the white LED with the letters “LDG” appears on the reset card in CTC.
Step 4 Verify that the reset is complete and error-free:
• No new alarms appear in the Alarms window in CTC.
• If you are looking at the physical ONS 15327, the ACT/STBY LED is illuminated.
• If you are looking at the node view of the ONS 15327, an amber LED depiction with “Sby” has
replaced the white “LDG” depiction on the card in CTC.
Step 5 If the alarm does not clear, complete the “Remove and Reinsert (Reseat) a Card” procedure on
page 2-130 for the reporting card.
Step 6 If you reinsert a high-speed card, verify the following LED behavior:
• The FAIL LED blinks for approximately 30 seconds.