Dell EMC SmartFabric OS10 User Guide Release 10.5.0

auto — Sets the negotiation mode to the default setting. The default setting depends on the media that you use.

on — Forces interface negotiation.

off — Disables interface negotiation.

Use the show interfaces command to view the interface negotiation status.

Both sides of the link must have auto-negotiation enabled or disabled for the link to come up.

Use either the negotiation auto command or the no negotiation command to reset the negotiation mode to its default setting.

OS10(conf-if-eth1/1/50)# negotiation off
OS10(conf-if-eth1/1/50)# show configuration
!
interface ethernet1/1/50
 no shutdown
 switchport access vlan 1
 negotiation off
 flowcontrol receive on
OS10(conf-if-eth1/1/50)# negotiation on
OS10(conf-if-eth1/1/50)# show configuration
!
interface ethernet1/1/50
 no shutdown
 switchport access vlan 1
 negotiation on
 flowcontrol receive on
OS10(conf-if-eth1/1/50)# negotiation auto
OS10(conf-if-eth1/1/50)# show configuration
!
interface ethernet1/1/50
 no shutdown
 switchport access vlan 1
 flowcontrol receive on
OS10(conf-if-eth1/1/50)# 
OS10(conf-if-eth1/1/50)# negotiation on
OS10(conf-if-eth1/1/50)# show configuration
!
interface ethernet1/1/50
 no shutdown
 switchport access vlan 1
 negotiation on
 flowcontrol receive on
OS10(conf-if-eth1/1/50)# no negotiation 
OS10(conf-if-eth1/1/50)# show configuration
!
interface ethernet1/1/50
 no shutdown
 switchport access vlan 1
 flowcontrol receive on
OS10(conf-if-eth1/1/50)# do show interface ethernet 1/1/50
Ethernet 1/1/50 is up, line protocol is up
Hardware is Eth, address is e4:f0:04:3e:2d:86
    Current address is e4:f0:04:3e:2d:86
Pluggable media present, QSFP28 type is QSFP28 100GBASE-CR4-2.0M
    Wavelength is 64
    Receive power reading is not available

Interface index is 112
Internet address is not set
Mode of IPv4 Address Assignment: not set
Interface IPv6 oper status: Disabled
MTU 1532 bytes, IP MTU 1500 bytes
LineSpeed 100G, Auto-Negotiation on