Users Guide

negotiation auto
Enable auto-negotiation on an interface.
Syntax
negotiation auto
To disable auto-negotiation, enter no negotiation auto command.
Defaults Enabled.
Command Modes INTERFACE
Supported Modes All Modes
Command History
Version Description
8.3.17.0 Supported on the M I/O Aggregator
Usage Information
The no negotiation auto command is only available if you rst manually set the speed of a port to
10Mbits or 100Mbits.
The negotiation auto command provides a mode option for conguring an individual port to forced-
master/forced slave once auto-negotiation is enabled.
If the mode option is not used, the default setting is slave. If you do not congure forced-master or forced
slave on a port, the port negotiates to either a master or a slave state. Port status is one of the following:
• Forced-master
• Force-slave
• Master
• Slave
• Auto-neg Error—typically indicates that both ends of the node are congured with forced-master or
forced-slave
CAUTION: Ensure that one end of your node is congured as forced-master and one is congured
as forced-slave. If both are congured the same (that is forced-master or forced-slave), the show
interfaces command will ap between an auto-neg-error and forced-master/slave states.
You can display master/slave settings with the show interfaces command.
Example (Master/
Slave)
Dell(conf)# interface 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)#
Example
(Congured)
Dell#show interfaces configured
TenGigabitEthernet 13/18 is up, line protocol is up
Hardware is Dell Eth, address is 00:01:e8:05:f7:fc
Current address is 00:01:e8:05:f7:fc
Interface index is 474791997
208
Interfaces