
DETAILED STEPS
PurposeCommand or Action
Enters global configuration mode.configure terminal
Example:
Switch# configure terminal
Step 1
Specifies the physical interface to be configured, and enter interface
configuration mode.
interface interface-id
Example:
Switch(config)# interface
Step 2
gigabitethernet1/0/3
This command is not available on a 10-Gigabit Ethernet interface.speed {10 | 100 | 1000 | auto [10 | 100 |
1000] | nonegotiate}
Step 3
Enter the appropriate speed parameter for the interface:
Example:
Switch(config-if)# speed 10
•
Enter 10, 100, or 1000 to set a specific speed for the interface. The
1000 keyword is available only for 10/100/1000 Mb/s ports.
•
Enter auto to enable the interface to autonegotiate speed with the
connected device. If you use the 10, 100, or the 1000 keywords with
the auto keyword, the port autonegotiates only at the specified
speeds.
•
The nonegotiate keyword is available only for SFP module ports.
SFP module ports operate only at 1000 Mb/s but can be configured
to not negotiate if connected to a device that does not support
autonegotiation.
This command is not available on a 10-Gigabit Ethernet interface.duplex {auto | full | half}
Step 4
Example:
Switch(config-if)# duplex half
Enter the duplex parameter for the interface.
Enable half-duplex mode (for interfaces operating only at 10 or 100 Mb/s).
You cannot configure half-duplex mode for interfaces operating at 1000
Mb/s.
You can configure the duplex setting when the speed is set to auto.
Returns to privileged EXEC mode.end
Example:
Switch(config-if)# end
Step 5
Displays the interface speed and duplex mode configuration.
show interfaces interface-id
Example:
Switch# show interfaces
Step 6
Catalyst 2960-X Switch Interface and Hardware Component Configuration Guide, Cisco IOS Release 15.0(2)EX
28 OL-29034-01
Configuring Interface Characteristics
Configuring Ethernet Interfaces
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