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speed/duplex mode under auto-negotiation, the required mode must be
specified in the capabilities list for an interface.
Example
The following example configures port 5 to 100 Mbps, half-duplex operation.
Console(config)#interface ethernet 1/5
Console(config-if)#speed-duplex 100half
Console(config-if)#no negotiation
Console(config-if)#
Related Commands
negotiation (4-223)
capabilities (4-224)
negotiation
This command enables autonegotiation for a given interface. Use the no form to
disable autonegotiation.
Syntax
[no] negotiation
Default Setting
Enabled
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
• When auto-negotiation is enabled the switch will negotiate the best settings
for a link based on the capabilities command. When auto-negotiation is
disabled, you must manually specify the link attributes with the speed-duplex
and flowcontrol commands.
• If autonegotiation is disabled, auto-MDI/MDI-X pin signal configuration will
also be disabled for the RJ-45 ports.
Example
The following example configures port 11 to use autonegotiation.
Console(config)#interface ethernet 1/11
Console(config-if)#negotiation
Console(config-if)#
Related Commands
capabilities (4-224)
speed-duplex (4-222)
Interface Commands
4-223
4
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