ExtremeXOS 22.3 allows you to enable IEEE Forward Error Correction (FEC) Clause 91 or Clause 74 (exclusively) on a per-port basis regardless of speed/type.
FEC gives the receiver the ability to correct errors without requiring a reverse channel to request retransmission of data, but at the cost of a fixed, higher forward channel bandwidth. Some devices require this to interoperate.
ExtremeSwitching X870 and X690 series switches.
configure ports port_list forward-error-correction [off | on [cl74 |cl91]]
show port port_list forward-error-correction {refresh |no-refresh } port-number
The following show command is changed to show FEC status information:
show port {mgmt | port_list | tag tag} information {detail}