Reference Guide

EEE : on
TxIdleTime(us) : 2560
TxWakeTime(us) : 5
Last Clearing : 18:45:53
TxEventCount : 0
TxDuration(us) : 0
RxEventCount : 0
RxDuration(us) : 0
Supported Releases 10.3.0E or later
Forward error correction
Forward error correction (FEC) is a digital signal processing technique used to enhance data reliability. It does this by introducing redundant
data, called error correcting code, prior to data transmission or storage. FEC provides the receiver with the ability to correct errors without
a reverse channel to request the retransmission of data.
FEC adds redundancy to transmitted information using a predetermined algorithm. The redundant bits are complex functions of the original
information bits. Bits are sent multiple times, because an error may appear in any of the samples transmitted. FEC codes generally detect
the last set of bits to determine the decoding of a small handful of bits.
Each character is sent two or three times, and the receiver checks instances of each character. It is accepted only if conformity occurs in
both instances. If conformity is satised for an instance, the character conforming to the protocol is accepted. If no characters conform to
the protocol, the character is rejected and an underscore or blank is displayed in its place.
• CL74-FC — Supports 25G and 50G
• CL91-RS — Supports 100G
• CL108-RS — Supports 25G and 50G
• o — Disables FEC
Congure FEC
OS10(config)# interface ethernet 1/1/1
OS10(conf-if-eth1/1/1)# fec CL74-FC
View FEC conguration
OS10(conf-if-eth1/1/1)# do show interface ethernet 1/1/1
Ethernet 1/1/1 is up, line protocol is up
Hardware is Dell EMC Eth, address is 00:0c:29:91:1d:ae
Current address is 00:0c:29:91:1d:ae
Pluggable media present, QSFP-PLUS type is QSFP_40GBASE_CR4_1M
Wavelength is 64
SFP receive power reading is 0.0
Interface index is 17305068
Internet address is not set
Mode of IPv4 Address Assignment: not set
Mode of IPv6 Address Assignment: not set
MTU 1532 bytes, IP MTU 1500 bytes
LineSpeed 40G, Auto-Negotiation on
FEC is , Current FEC is off
--more--
Switch-port proles
A port prole determines the enabled front-panel ports and supported breakout modes on Ethernet and unied ports. Change the port
prole on a switch to customize uplink and unied port operation, and the availability of front-panel data ports.
To change the port prole at the next reboot, enter the switch-port-profile command with the desired prole, save it to the startup
conguration, and reload the switch.
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Interfaces