fec

Use this command to force/auto configure forward error correction (FECClosed FEC is a technique that detects and corrects errors during data transmission to maintain the reliability of the communication system.) on a physical port.

Use the no parameter to enable automatic FEC configuration provisioning based on medium.

Command Syntax

Copy 
fec (on (cl74|cl91|cl108)|off|auto)
no fec

Parameters

on

Enables FEC.

on cl74

Enables Base-R FEC if hardware supports it.

on cl91

Enables RS-528 FEC if hardware supports it.

on cl108

Enables RS-108 with 64/66b 5T low latency RS FEC for fabric.

off

Disable FEC.

auto

Automatically apply FEC for the below transceiver Ethernet compliance codes.
Transceiver compliance codes can be fetched via the "show interface controller" command. Also, "fec auto" behavior is the same as no fec.
100G Active Optical Cable (AOC) or 25GAUI C2M AOC
100G Active Copper Cable (ACC) or 25GAUI C2M ACC
100G ACC or 25GAUI C2M ACC
100G AOC or 25GAUI C2M AOC
100GBASE-SR4 or 25GBASE-SR
100G AOC or 25GAUI C2M AOC

Default

By default, FEC mode is set to auto.

Command Mode

Interface mode

Applicability

Introduced before OcNOS version 4.1. Added new parameters cl74 and cl91 in OcNOS version 6.3.1 and cl108 in OcNOS version 6.6.0.

Examples

Copy 
(config)#interface eth3
(config-if)#fec on
(config-if)#fec off
(config-if)#fec auto
(config-if)#fec on cl74
(config-if)#fec on cl91
(config-if)#fec on cl108