Symptoms - 16.2 English

1G/2.5G Ethernet PCS/PMA or SGMII LogiCORE IP Product Guide (PG047)

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16.2 English
The severity of a high-bit error rate can vary and cause any of the following symptoms:
  • Failure to complete auto-negotiation when auto-negotiation is enabled.
  • Failure to obtain a link when auto-negotiation is disabled in both the core and the link partner.
  • High proportion of lost packets when passed between two connected devices that are capable of obtaining a link through auto-negotiation or otherwise. This can usually be accurately measured if the Ethernet MAC attached to the core contains statistic counters.
Note: All bit errors detected by the 1000BASE-X or 2500BASE-X PCS/PMA logic during frame reception show up as Frame Check Sequence Errors in an attached Ethernet MAC.