Example (Master/Slave)

Example (Configured)

User Information

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 Ethernet line cards.

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.

Dell(conf)# interface tengigabitethernet 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 forced-slave Force port to slave mode Dell(conf-if-autoneg)#

Dell#show interfaces configured

TenGigabitEthernet 13/18 is up, line protocol is up Hardware is Force10Eth, address is 00:01:e8:05:f7:fc

Current address is 00:01:e8:05:f7:fc Interface index is 474791997 Internet address is 1.1.1.1/24

MTU 1554 bytes, IP MTU 1500 bytes

LineSpeed 1000 Mbit, Mode full duplex, Master ARP type: ARPA, ARP Timeout 04:00:00

Last clearing of "show interfaces" counters 00:12:42 Queueing strategy: fifo

Input Statistics:

...

Both sides of the link must have auto-negotiation enabled or disabled for the link to come up.

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Interfaces

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Dell 9.7(0.0) manual Example Configured User Information