Users Guide

Version Description
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.0 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
8.1.1.0 Introduced on the E-Series.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
pre-6.2.1.0 Introduced on the E-Series.
Usage Information
This command is supported on 10/100/1000 Base-T Ethernet interfaces.
The no negotiation auto command is only available if you first manually set the speed of a port to 10Mbits
or 100Mbits.
The negotiation auto command provides a mode option for configuring an individual port to forced-master/
forced slave after you enable auto-negotiation.
NOTE: The mode option is not available on non-10/100/1000 Base-T systems.
If you do not use the mode option, the default setting is slave. If you do not configure 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 configured with forced-master or forced-
slave.
CAUTION: Ensure that one end of your node is configured as forced-master and one is configured as
forced-slave. If both are configured the same (that is, forced-master or forced-slave), the show
interfaces command flaps 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 tengigabitethernet 1/1/1
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
676 Interfaces