GPON rogue-ONU detection based on error counts

Details GPON rogue-ONU detection based on error counts GPON rogue-ONU detection based on error counts

2006-12-11

2010-10-19

Abraham, Esaw T (Department: 2112)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S704000, C398S078000

Reexamination Certificate

active

07818648

ABSTRACT:
A system, for identifying faults in a GPON that includes an OLT and a plurality of ONUs, including: a global error-counter, coupled to the OLT, for counting FEC-correctable errors, for each ONU, from a data stream from the GPON; and a CPU for extracting an ONU status, indicative of a faulty ONU, contingent on the errors from the global error-counter. A system, for identifying faults in a GPON that includes an OLT and a plurality of ONUs, including: a grant-start error-counter, coupled to the OLT, for counting grant-start errors, for each ONU, from a data stream from the GPON; a grant-end error-counter, coupled to the OLT, for counting grant-end errors for each ONU; and a CPU for extracting an ONU status, indicative of a faulty ONU, contingent on a parameter selected from the group consisting of the grant-start errors, the grant-end errors, and a combination thereof.

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