Cisco 15310-MA Instrukcja Naprawy Pobierz pdf (Strona 268)

2-138

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

78-18394-01

Chapter 2 Alarm Troubleshooting

Alarm Procedures

The SSM Failed alarm occurs when the synchronization status messaging received by the

ONS 15310-CL or ONS 15310-MA fails. The problem is external to the system. This alarm indicates

that although the system is set up to receive SSM, the timing source is not delivering valid SSM

messages.

Clear the SSM-FAIL Alarm

Step 1 Verify that SSM is enabled on the external timing source.

Step 2 If timing is enabled, use an optical test set to determine that the external timing source is delivering SSM.

For specific procedures to use the test set equipment, consult the manufacturer.

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

or ONS 15310-MA.

Step 3 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).

2.7.221 SSM-LNC

The SSM-LNC condition is not used in this platform in this release. It is reserved for development.

2.7.222 SSM-OFF

Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)

SONET Logical Objects: BITS, DS1, OCN

The SSM Off condition applies to references used for timing the node. It occurs when the SSM for the

reference has been turned off. The condition is raised when the ONS system is set up to receive SSM,

but the timing source is not delivering SSM messages.

Clear the SSM-OFF Condition

Step 1 Complete the “Clear the SSM-FAIL Alarm” procedure on page 2-138.

Step 2 If the condition 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).

2.7.223 SSM-PRC

Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)

SDH Logical Objects: BITS, DS1, NE-SREF, OCN

1 2 ... 263 264 265 266 267 268 269 270 271 272 273 ... 379 380

Brak uwag

Cisco 15310-MA Instrukcja Naprawy Strona 268