CLI Guide

Version Description
9.10(0.0) Introduced on the S3148.
9.10(0.0) Introduced on the S6100–ON.
9.8(2.0) Introduced on the S3100 series.
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
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.
You can use the negotiation auto command on the 10G ports on the device.
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.
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)
DellEMC(conf)# interface tengigabitethernet 1/1/1/1
DellEMC(conf-if)# neg auto
DellEMC(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
DellEMC(conf-if-autoneg)# mode ?
forced-master Force port to master mode
Interfaces 683