configure ports forward-error-correction

configure ports port_list forward-error-correction [off | on [cl74 | cl91]]

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.