Chapter 7
Configuring the Native Gigabit Ethernet Interfaces
ip address 10.198.75.35 255.255.255.240
no keepalive duplex full speed 1000
no negotiation auto no cdp enable
no shutdown
!
interface GigabitEthernet0/2
ip address 10.179.16.2 255.255.255.240 duplex auto
speed auto
!
interface GigabitEthernet0/3 no ip address
shutdown duplex auto speed auto
no negotiation auto no cdp enable
Note At the very minimum, an interface must be configured with the ip address,
Debugging
Cisco IOS provides two commands to provide information on your interfaces: show interface
GigabitEthernet 0/X (where X is 1, 2, or 3) and show controllers GigabitEthernet 0/0.
The output of the show interface command is useful for determining the current operating mode of the interface
The output of the show controllers command displays more information specific to the I/O controller interface. For example, it shows the detected link status, speed, and duplex, and also determines the current status of autonegotiation and the link partners’ abilities (if it is an
The show controllers command also displays the current operating state of the driver and the Ethernet controller hardware. The show controllers command is a very powerful debugging aid, especially for Cisco engineers should you need help in debugging a problem. If you have any problems with your Gigabit Ethernet interfaces, you will need to provide the show controllers command output to Cisco for analysis.
Resetting the Interface
Should you have a problem with your interface and wish to try and reset it, use the command:
clear interface GigabitEthernet 0/X (where X is 1, 2, or 3)
Network Processing Engine and Network Services Engine Installation and Configuration
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