Cisco 15310-MA Guia de Resolução de Problemas descarregar pdf (Página 235)

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Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, Release 9.0

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Chapter 2 Alarm Troubleshooting

Alarm Procedures

Step 4 If the signal is valid, ensure that the transmit and receive outputs from the DSx panel to your equipment

are properly connected. For more information about fiber connections and terminations, refer to the

“Install Hardware” chapter in the Cisco ONS 15310-CL and Cisco ONS 15310-MA Procedure Guide.

Step 5 Repeat Steps 1 through 4 for any other port on the card that reports the LOS (EC1).

Step 6 If the alarm does not clear, look for and troubleshoot any other alarm that could identify the source of

the problem.

Step 7 If the alarm does not clear, log into the Technical Support Website at http://www.cisco.com/techsupport

for more information or call Cisco TAC (1-800-553-2447) in order to report a Service-Affecting (SA)

problem.

2.7.153 LOS (FUDC)

Default Severity: Minor (MN), Non-Service-Affecting (NSA)

SONET Logical Object: FUDC

The LOS (FUDC) alarm is raised if there is a user data channel (UDC) circuit created but the port is not

receiving signal input. The downstream node raises an AIS condition raised against the port transmitting

the UDC. FUDC refers to the 64-kb user data channel using the F1 byte.

Clear the LOS (FUDC) Alarm

Step 1 Using site practices, verify cable continuity to the UDC port.

Caution Always use the supplied electrostatic discharge wristband when working with a powered ONS 15310-CL

or ONS 15310-MA.

Step 2 Verify that there is a valid input signal using a test set. For instructions to do this, consult the test set

manufacturer.

Step 3 If there is a valid signal, clean the fiber according to site practice. If no site practice exists, complete the

procedure in the “Maintain the Node” chapter in the Cisco ONS 15310-CL and Cisco ONS 15310-MA

Procedure Guide.

Step 4 If the alarm does not clear, verify that the UDC is provisioned by completing the following steps:

a. At the network view, click the Provisioning > Overhead Circuits tabs.

b. If no UDC circuit exists, create one. Refer to the “Create Circuits” chapter in the

Cisco ONS 15310-CL and Cisco ONS 15310-MA Procedure Guide for procedures.

c. If a user data circuit exists (shown as User Data F1 under the Type column), check the source and

destination ports.

Step 5 If the alarm does not clear, look for and troubleshoot any other alarm that could identify the source of

the problem.

Step 6 If the alarm does not clear, log into the Technical Support Website at http://www.cisco.com/techsupport

for more information or call Cisco TAC (1-800-553-2447).

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