speed (Fast Ethernet)
To configure the speed for a Fast Ethernet interface, enter the
speed
command in interface configuration
mode. To return the system to autonegotiate speed, use the
no
form of this command.
speed
{
10| 100| 1000
}
no speed
Syntax Description
Configures the interface to transmit at 10 Mbps.
10
Configures the interface to transmit at 100 Mbps.
100
Configures the interface to transmit at 1000 Mbps (1 Gbps).
1000
Command Default
If autonegotiation is enabled on an interface, the default speed is negotiated.
If autonegotiation is disabled on an interface, the default speed is the maximum speed allowed on the interface.
Command Modes
Interface configuration
Command History
Modification
Release
This command was introduced.
Release 4.2.3
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task
IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator
for assistance.
The
speed
command is available on Management Ethernet interfaces and Fast Ethernet interfaces only.
Note
Keep in mind that both ends of a link must have the same interface speed. A manually configured interface
speed overides any autonegotiated speed, which can prevent a link from coming up if the configured
interface speed at one end of a link is different from the interface speed on the other end.
Note
Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Command Reference,
Release 5.3.x
126
Ethernet Interface Commands on the Cisco ASR 9000 Series Router
speed (Fast Ethernet)