Reference Guide

feature auto-breakout
Enables front-panel Ethernet ports to automatically detect SFP pluggable media and autoconfigure breakout interfaces.
Syntax
feature auto-breakout
Parameters None
Default Not configured
Command mode CONFIGURATION
Usage
information
After you enter the feature auto-breakout command and plug a supported breakout cable in a
QSFP+ or QSFP28 port, the port autoconfigures breakout interfaces for media type and speed.
The no version of this command disables the auto-breakout feature. The media type plugged into a port
is no longer automatically learned. Use the interface breakout command to manually configure
breakout interfaces.
Example
OS10(config)# feature auto-breakout
Supported
releases
10.4.0E(R1) or later
fec
Configures Forward Error Correction on 25G and 100G interfaces.
Syntax
fec {CL74-FC | CL91-RS | CL108-RS | off}
Parameters
● CL74-FC — Supports 25G
● CL91-RS — Supports 100G
● CL108-RS — Supports 25G
● off — Disables FEC
Defaults
● For 25G interfaces: off
● For 100G interfaces: CL91-RS
Command Mode CONFIGURATION
Usage
Information
The no version of this command resets the value to the default.
Example
OS10(config)# interface ethernet 1/1/41
OS10(conf-if-eth1/1/41)# fec CL91-RS
Supported
Releases
10.3.0E or later
interface breakout
Splits a front-panel Ethernet port into multiple breakout interfaces.
Syntax
interface breakout node/slot/port map {100g-1x | 40g-1x | 25g-4x |
10g-4x10g-4x | 25g-4x}
Parameters
● node/slot/port — Enter the physical port information.
● 100g-1x — Reset a QSFP28 port to 100G speed.
● 40g-1x — Set a QSFP28 port for use with a QSFP+ 40GE transceiver.
● 25g-4x — Split a QSFP28 port into four 25GE interfaces.
● 10g-4x — Split a QSFP28 or QSFP+ port into four 10GE interfaces
Default Not configured
100 Interfaces