Users Guide

fec
Configures Forward Error Correction on 25G, 50G, and 100G interfaces.
Syntax
fec {CL74-FC | CL91-RS | CL108-RS | off}
Parameters
● CL74-FC — Supports 25G and 50G
● CL91-RS — Supports 100G
● CL108-RS — Supports 25G and 50G
● off — Disables FEC
Defaults
NOTE: Default FEC settings are determined by the inserted media type.
● For 25G and 50G interfaces: off, CL108-RS, or auto-negotiate
● For 100G interfaces: off, CL91-RS, or auto-negotiate
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 | 50g-2x |40g-1x | 25g-4x |
10g-4x | 25g-4x}
Parameters
● node/slot/port — Enter the physical port information.
● 100g-1x — Reset a QSFP28 port to 100G speed.
● 50g-2x — Split a QSFP28 port into two 50GE interfaces.
● 40g-1x — Set a QSFP28 port to 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
Command Mode CONFIGURATION
Usage
Information
● Each breakout interface operates at the configured speed; for example, 10G, 25G, or 50G.
● The no interface breakout node/slot/port command resets a port to its default speed:
40G or 100G.
● To configure breakout interfaces on a unified port, use the mode {Eth | FC} command in Port-
Group Configuration mode.
● On the S4148U-ON platform, ensure that you use the same breakout mode as you have configured on
the peer interface. For example, if you have explicitly configured the interface on the peer device as
10g-4x, use the same configuration on your switch.
Example
OS10(config)# interface breakout 1/1/41 map 10g-4x
Supported
Releases
10.2.2E or later
386 Interfaces