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Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
OL-9639-07
Chapter 9 Configuring Interfaces
Configuring Ethernet Interfaces
Use the
no speed
and
no duplex
interface configuration commands to return the interface to the default
speed and duplex settings (autonegotiate). To return all interface settings to the defaults, use the
default
interface
interface-id
interface configuration command.
This example shows how to set the interface speed to 10 Mbps and the duplex mode to half on a
10/100 Mbps port:
Switch#
configure terminal
Switch(config)#
interface fasttethernet0/3
Switch(config-if)#
no shutdown
Switch(config-if)#
speed 10
Switch(config-if)#
duplex half
This example shows how to set the interface speed to 100 Mbps on a 10/100/1000 Mbps port:
Switch#
configure terminal
Switch(config)#
interface gigabitethernet0/2
Switch(config-if)#
speed 100
Step 4
speed
{
10 | 100 | 1000 | auto
[
10
|
100
|
1000
]
| nonegotiate
}
Enter the appropriate speed parameter for the interface:
•
Enter
10
,
100
, or
1000
to set a specific speed for the interface.
The
1000
keyword is available only for 10/100/1000 Mbps ports
or SFP module ports with a 1000BASE-T SFP module.
•
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 Mbps but can be
configured to not negotiate if connected to a device that does not
support autonegotiation.
Note
When a Cisco1000BASE-T SFP module is in the SFP module
slot, the speed can be configured to
10
,
100
,
1000
, or to
auto
,
but not to
nonegotiate
.
Step 5
duplex
{
auto | full | half
}
Enter the duplex parameter for the interface.
Enable half-duplex mode (for interfaces operating only at 10 or
100 Mbps). You cannot configure half-duplex mode for interfaces
operating at 1000 Mbps.
You can configure the duplex setting when the speed is set to
auto
.
This command is not available on SFP module ports with these
exceptions:
•
If a Cisco 1000BASE-T SFP module is inserted, you can
configure duplex to
auto
or to
full
.
•
If a Cisco 100BASE-FX SFP module is inserted, you can
configure duplex to
full
or to
half
. Although the
auto
keyword is
available, it puts the interface in half-duplex mode (the default).
Step 6
end
Return to privileged EXEC mode.
Step 7
show interfaces
interface-id
Display the interface speed and duplex mode configuration.
Step 8
copy running-config startup-config
(Optional) Save your entries in the configuration file.
Command
Purpose
Содержание ME 3400 Series
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