Concept Guide

duplex {half | full}
7 Disable auto-negotiation on the port.
INTERFACE mode
no negotiation auto
If the speed was set to 1000, do not disable auto-negotiation.
8 Verify conguration changes.
INTERFACE mode
show config
Example of the show interfaces status Command to View Link Status
NOTE: The show interfaces status command displays link status, but not administrative status. For both link and
administrative status, use the show ip interface command.
DellEMC#show interfaces status
Port Description Status Speed Duplex Vlan
Te 1/1/1 Down Auto Mbit Auto --
Te 1/1/2 Down 10000 Mbit Auto --
Te 1/1/3 Down Auto Mbit Auto --
Te 1/1/4 Down 10000 Mbit Auto --
Te 1/2/1 Up 10000 Mbit Full 2-5
Te 1/2/2 Up 10000 Mbit Full 2-5
Te 1/2/3 Up Auto Mbit Full 2-5
Te 1/2/4 Up 10000 Mbit Full 2-5
Fo 1/3 Down 40000 Mbit Auto --
Fo 1/4 Down 40000 Mbit Auto --
Fo 1/5 Down Auto Mbit Auto --
[output omitted]
In the previous example, several ports display “Auto” in the Speed eld. In the following example, the speed of port 1/1/1 is set to 100Mb
and then its auto-negotiation is disabled.
DellEMC#configure
DellEMC(config)#interface tengig 1/1/1
DellEMC(conf-if-te-1/1/1)#speed 100
DellEMC(conf-if-te-1/1/1)#duplex full
DellEMC(conf-if-te-1/1/1)#no negotiation auto
DellEMC(conf-if-te-1/1/1)#show config
!
interface TenGigabitEthernet 1/1/1
no ip address
speed 100
duplex full
no shutdown
Set Auto-Negotiation Options
The negotiation auto command provides a mode option for conguring an individual port to forced master/ forced slave once auto-
negotiation is enabled.
CAUTION
: Ensure that only one end of the node is congured as forced-master and the other is congured as forced-slave. If
both are congured the same (that is, both as forced-master or both as forced-slave), the show interface command aps
between an auto-neg-error and forced-master/slave states.
Example of the negotiation auto Command
DellEMC(conf)# int tengigabitethernet 1/1/1
DellEMC(conf-if-te-1/1/1)#neg auto
DellEMC(conf-if-te-1/1/1-autoneg)# ?
426
Interfaces