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In the previous example, several ports display “Auto” in the Speed field, including port 0/1. In the following example, the speed
of port 0/1 is set to 100Mb and then its auto-negotiation is disabled.
Dell#configure
Dell(config)#interface tengig 0/1
Dell(conf-if-te-0/1)#speed 100
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 100
duplex full
no shutdown
Set 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.
Example of the negotiation auto Command
Dell(conf)# int tengig 0/0
Dell(conf-if)#neg auto
Dell(conf-if-autoneg)# ?
end Exit from configuration mode
exit Exit from autoneg configuration mode
mode Specify autoneg mode
no Negate a command or set its defaults
show Show autoneg configuration information
Dell(conf-if-autoneg)#mode ?
forced-master Force port to master mode
forced-slave Force port to slave mode
Dell(conf-if-autoneg)#
Adjusting the Keepalive Timer
To change the time interval between keepalive messages on the interfaces, use the keepalive command. The interface sends
keepalive messages to itself to test network connectivity on the interface.
To change the default time interval between keepalive messages, use the following command.
● Change the default interval between keepalive messages.
INTERFACE mode
keepalive [seconds]
● View the new setting.
INTERFACE mode
show config
View Advanced Interface Information
The following options have been implemented for the show [ip | running-config] interfaces commands.
When you use the configured keyword, only interfaces that have non-default configurations display.
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Interfaces