Setup Guide

Table Of Contents
example for the fec enable command for a 100G interface.
DellEMC(conf-if-hu-1/1)#fec enable
DellEMC(conf-if-hu-1/1)#show config
!
interface hundredGigE 1/1
no ip address
shutdown
intf-type cr4 autoneg
fec enable
Important Points to Remember
For 10–Gigabit and 40–Gigabit Ethernet interfaces, FEC configurations are not applicable.
For 100-Gigabit Ethernet interfaces, CR4 auto-negotiation is enabled by default. You can enable or disable FEC and auto negotiation
irrespective of each other.
For 25–Gigabit and 50–Gigabit Ethernet interfaces, FEC is disabled by default. You can enable or disable FEC and CR4 auto-
negotiation simultaneously.
To view auto-negotiation and FEC configurations for 25–Gigabit, 50–Gigabit and 100–Gigabit Ethernet interfaces, use the show
interfaces command.
If you connect the 25G SR optics between the S5048-ON and Z9100, enable FEC CL74 on S5048-ON for the link to come up.
DellEMC#show interfaces hundredGigE 1/10
hundredGigE 1/10 is up, line protocol is up
Hardware is DellEMCEth, address is 00:12:32:12:42:13
Current address is 00:12:32:12:42:13
Pluggable media present, QSFP28 type is 100GBASE-CR4-3M
AutoNegotiation is OFF
Forward Error Correction(FEC) is ON
Wavelength is 64nm
Interface index is 2101774
Internet address is not set
Mode of IPv4 Address Assignment : NONE
DHCP Client-ID :001232124213
MTU 9416 bytes, IP MTU 9398 bytes
LineSpeed 100000 Mbit
Flowcontrol rx off tx off
ARP type: ARPA, ARP Timeout 04:00:00
Last clearing of "show interface" counters 00:31:23
Queueing strategy: fifo
Input Statistics:
32992398774 packets, 2243483116632 bytes
0 64-byte pkts, 32992398774 over 64-byte pkts, 0 over 127-byte pkts
0 over 255-byte pkts, 0 over 511-byte pkts, 0 over 1023-byte pkts
0 Multicasts, 0 Broadcasts, 32992398774 Unicasts
0 runts, 0 giants, 0 throttles
0 CRC, 0 overrun, 0 discarded
669 FEC bit errors, 172 FEC uncorrected code words
Output Statistics:
0 packets, 0 bytes, 0 underruns
0 64-byte pkts, 0 over 64-byte pkts, 0 over 127-byte pkts
0 over 255-byte pkts, 0 over 511-byte pkts, 0 over 1023-byte pkts
0 Multicasts, 0 Broadcasts, 0 Unicasts
0 throttles, 0 discarded, 0 collisions, 0 wreddrops
Rate info (interval 299 seconds):
Input 00.00 Mbits/sec, 0 packets/sec, 0.00% of line-rate
Output 00.00 Mbits/sec, 0 packets/sec, 0.00% of line-rate
Time since last interface status change: 00:27:30
View Advanced Interface Information
The following options have been implemented for the show [ip | running-config] interfaces commands for (only) stack-
unit interfaces.
When you use the configured keyword, only interfaces that have non-default configurations are displayed. Dummy stack-unit
interfaces (created with the stack-unit command) are treated like any other physical interface.
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Interfaces