configure ports forward-error-correction
Description
Enables/disables IEEE Forward Error Correction (FEC) Clause 74 or 91 modes.
Syntax Description
| port_list | List of ports to enable/disable FEC modes on. |
| forward-error-correction | Configures port FEC mode. |
| off | Disables all FEC modes (default). |
| on | Enables FEC modes. |
| c174 | Enables/disables FEC IEEE Clause 74. |
| c191 | Enables/disables FEC IEEE Clause 91. |
Default
FEC is not enabled by default.
Usage Guidelines
This command allows you to enable/disable 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.
Example
The following example enables FEC Clause 91 on port 1:
# configure ports 1 forward-error-correction on cl91
The following example turns off FEC on port
1:
# configure ports 1 forward-error-correction off
History
This command was first available in ExtremeXOS 22.3.
Platform Availability
This command is available on the ExtremeSwitching X465 (VIM-4YE),X590, X695 switches.