Administrator Guide

show interface status Command Example:
Dell#show interfaces status
Port Description Status Speed Duplex Vlan
Te 0/1 Down Auto Auto --
Te 0/2 Down Auto Auto --
Te 0/3 Down Auto Auto --
Te 0/4 Down Auto Auto --
Te 0/5 Down Auto Auto --
Te 0/6 Down Auto Auto --
Te 0/7 Down Auto Auto --
Te 0/8 Down Auto Auto --
Te 0/9 Down Auto Auto --
Te 0/10 Down Auto Auto --
Te 0/11 Down Auto Auto --
Te 0/12 Down Auto Auto --
Te 0/13 Down Auto Auto --
[output omitted]
In the above example, several ports display “Auto” in the speed field, including port 0/1. Now, in the below
example, the speed of port 0/1 is set to 100 Mb and then its auto-negotiation is disabled.
Setting Port Speed Example
Dell#configure
Dell(conf)#interface tengig 0/1
Dell(conf-if-te-0/1)#speed 1000
Dell(conf-if-te-0/1)#no negotiation auto
Dell(conf-if-te-0/1)#show config
!
interface TenGigabitEthernet 0/1
no ip address
speed 1000
duplex full
no shutdown
Setting Auto-Negotiation Options
The negotiation auto command provides a mode option for configuring an individual port to forced
master/forced slave after you enable auto-negotiation.
CAUTION: Ensure that only one end of the node is configured as forced-master and the other is
configured as forced-slave. If both are configured the same (that is, both as forced-master or
both as forced-slave), the show interface command flaps between an auto-neg-error and forced-
master/slave states.
Auto-Negotiation, Speed, and Duplex Settings on Different Optics:
Command Mode 10GbaseT
module
10G SFP+
optics
1G SFP optics Copper SFP
- 1000baseT
Comments
speed 100 interface-
config
mode
Supported Not
supported(
Error
message is
thrown) (%
Error:
Not
supported(Error
message is
thrown) (% Error:
Speed 100 not
supported on this
% Error:
Speed 100
not
supported
on this
interface,
112
Interfaces