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SONET Alarms

SONET Alarms. By Sadhish Prabhu . SONET frame structure . The SONET frame structure has been designed to contain a large amount of overhead information. Functions of overhead. It provides a variety of management and other functions: Error performance monitoring

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SONET Alarms

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  1. SONET Alarms By Sadhish Prabhu

  2. SONET frame structure The SONET frame structure has been designed to contain a large amount of overhead information.

  3. Functions of overhead It provides a variety of management and other functions: • Error performance monitoring • pointer adjustment information • path status • path trace • section trace • remote defect, error, and failure indications • signal labels • new data flag indications • data communications channels (DCC) • automatic protection switching (APS) control • Orderwire and • synchronization status message

  4. SONET alarms SONET alarms are defined as follows Anomaly: • This is the smallest discrepancy that can be observed between the actual and desired characteristics of an item. • The occurrence of a single anomaly does not constitute an interruption in the ability to perform a required function.

  5. SONET alarms SONET alarms are defined as follows Defect: • The density of anomalies has reached a level where the ability to perform a required function has been interrupted. • Defects are used as input for performance monitoring, the control of consequent actions, and the determination of fault cause.

  6. SONET alarms SONET alarms are defined as follows Failure : • This is the inability of a function to perform a required action persisted beyond the maximum time allocated.

  7. Various SONET Alarms

  8. Various SONET Alarms

  9. Various SONET Alarms

  10. Various SONET Alarms

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  12. Various SONET Alarms

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