Cisco ASR 901 Command Reference Manual page 208

speed
Speed and Duplex Combinations
Table 1-14
settings. The specified duplex command configured with the specified speed command produces the
resulting system action.
If you decide to configure the interface speed and duplex commands manually, and enter a value (for
example, speed 10 or speed 100 ), ensure that you configure the connecting interface speed command to
a matching speed.
You cannot set the duplex mode to half when the port speed is set at 1000 and similarly, you cannot set
the port speed to 1000 when the mode is set to half duplex.
Changing the interface speed and duplex mode might shut down and reenable the interface during the
Caution
reconfiguration.
Table 1-14 Relationship Between duplex and speed Commands
duplex Command
duplex half
duplex full
duplex half
duplex full
duplex full
Examples
The following example specifies advertisement of 10 Mbps operation only, and either full-duplex or
half-duplex capability during autonegotiation:
Router# configure terminal
Router(config)# interface gigabitethernet 0/1
Router(config-if)# speed 10
Router(config-if)# duplex full
With this configuration, the interface advertises the following capabilities during autonegotiation:
•
•
Related Commands Command
duplex
interface gigabitethernet
Cisco ASR 901 Aggregation Services Router Command Reference Guide
1-194
describes the interface behavior for various combinations of the duplex and speed command
speed Command
speed 10
speed 10
speed 100
speed 100
speed 1000
10 Mbps and half duplex
10 Mbps and full duplex
Resulting System Action
Forces 10-Mbps and half-duplex operation, and
disables autonegotiation on the interface.
Forces 10-Mbps and full-duplex operation, and
disables autonegotiation on the interface.
Forces 100-Mbps and half-duplex operation, and
disables autonegotiation on the interface.
Forces 100-Mbps and full-duplex operation, and
disables autonegotiation on the interface.
Forces 1000-Mbps and full-duplex operation,
and disables autonegotiation on the interface
(Gigabit Ethernet only).
Description
Configures the duplex operation on an interface.
Selects a particular Gigabit Ethernet interface for configuration.
Chapter 1 CLI Command Reference
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