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Cisco Systems IntelligentGigabit Ethernet Switch Modules for the IBMBladeCenter, Software Configuration Guide
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Chapter7 Configuring Interface Characteristics
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 Gigabit
Ethernet interface 0/17 and to verify the configuration:
Switch# configure terminal
Switch(config)# interface gigabitethernet0/17
Switch(config-if)# speed 10
Switch(config-if)# duplex half
Switch(config)# end
Switch# show running-config
Building configuration...
Current configuration : 1954 bytes
!
version 12.1
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Switch
!
<output truncated>
!
interface gigabitethernet0/17
switchport mode trunk
no ip address
duplex half
speed 10
!
<output truncated>
Adding a Description for an Interface
You can add a description about an interface to help you remember its function. The description appears
in the output of these commands: show configuration, show running-config, and show interfaces.
Beginning in privileged EXEC mode, follow these steps to add a description for an interface:
Step6 show interfaces interface-id Display the interface speed and duplex mode configuration.
Step7 copy running-config startup-config (Optional) Save your entries in the configuration file.
Command Purpose
Command Purpose
Step1 configure terminal Enter global configuration mode
Step2 interface interface-id Enter interface configuration mode, and enter the interface for which
you are adding a description.
Step3 description string Add a description (up to 240 characters) for an interface.
Step4 end Return to privileged EXEC mode.