Users Guide

shutdown
no intf-type cr4 autoneg
Important Points to Remember
• For 10–Gigabit Ethernet interfaces, CR4 auto-negotiation is not applicable.
• For 100-Gigabit Ethernet interfaces, CR4 auto-negotiation is enabled by default.
• For 40–Gigbit, 25–Gigabit and 50–Gigabit Ethernet interfaces, CR4 auto-negotiation is disabled by default.
FEC Conguration
FEC congurations are available on 100–Gigbit, 50–Gigabit and 25–Gigabit Ethernet interfaces.
To congure FEC, use the following commands.
• Enable FEC.
INTERFACE mode
fec enable
To disable FEC, use the no fec enable command.
• Set to default FEC value.
INTERFACE mode
fec default
• Verify the conguration.
INTERFACE mode
show config
Example of the fec enable Command
Dell(conf-if-hu-1/1/1)#fec enable
Disable autoneg before enabling/disabling FEC on 100G port
Dell(conf-if-hu-1/1/1)#no fec enable
Disable autoneg before enabling/disabling FEC on 100G port
Dell(conf-if-hu-1/1/1)#no intf-type cr4 autoneg
Dell(conf-if-hu-1/1/1)#show config
!
interface hundredGigE 1/1/1
no ip address
shutdown
no intf-type cr4 autoneg
Dell(conf-if-hu-1/1/1)#fec enable
Dell(conf-if-hu-1/1/1)#show config
!
interface hundredGigE 1/1/1
no ip address
shutdown
no intf-type cr4 autoneg
fec enable
Dell(conf-if-hu-1/1/1)#no fec enable
Dell(conf-if-hu-1/1/1)#show config
!
interface hundredGigE 1/1/1
no ip address
shutdown
no intf-type cr4 autoneg
no fec enable
Dell(conf-if-hu-1/1/1)#fec default
Dell(conf-if-hu-1/1/1)#show config
!
interface hundredGigE 1/1/1
386
Interfaces