Cisco 15310-MA Guida alla Risoluzione dei Problemi Scaricare il pdf (Pagina 202)

2-72

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

78-18394-01

Chapter 2 Alarm Troubleshooting

Alarm Procedures

2.7.97 FRCDSWTOTHIRD

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

SONET Logical Objects: EXT-SREF, NE-SREF

The Force Switch to Third Timing Source condition occurs when the user issues a Force command to

switch to a third timing source.

Note FRCDSWTOTHIRD is an informational condition. It does not require troubleshooting.

2.7.98 FRNGSYNC

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

SONET Logical Object: NE-SREF

The Free Running Synchronization Mode condition occurs when the reporting ONS 15310-CL or

ONS 15310-MA is in free-run synchronization mode. External timing sources have been disabled and

the node is using its internal clock, or the node has lost its designated BITS timing source. After the

24-hour holdover period expires, timing slips could begin to occur on a node relying on an internal clock.

Note If the ONS 15310-CL or ONS 15310-MA is configured to operate from its internal clock, disregard the

FRNGSYNC condition.

Clear the FRNGSYNC Condition

Step 1 If the ONS 15310-CL or ONS 15310-MA is configured to operate from an external timing source, verify

that the BITS timing source is valid. Refer to the “Timing” chapter in the Cisco ONS 15310-CL and

Cisco ONS 15310-MA Reference Manual for more information about it.

Step 2 If the BITS source is valid, clear alarms related to the failures of the primary and secondary reference

sources, such as the “SYNCPRI” alarm on page 2-144 and the “SYNCSEC” alarm on page 2-145.

Step 3 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).

2.7.99 FSTSYNC

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

SONET Logical Object: NE-SREF

A Fast Start Synchronization Mode condition occurs when the ONS 15310-CL or ONS 15310-MA is

choosing a new timing reference. The previous timing reference has failed.

The FSTSYNC condition disappears after approximately 30 seconds. 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).

1 2 ... 197 198 199 200 201 202 203 204 205 206 207 ... 379 380

Nessun commento

Cisco 15310-MA Guida alla Risoluzione dei Problemi Pagina 202