Deployment Guide

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Version Description

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)

DellEMC(conf)# interface tengigabitethernet 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

forced-slave Force port to slave mode

DellEMC(conf-if-autoneg)#