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Ethernet Card Software Feature and Configuration Guide, R7.2
January 2009
Chapter 4 Configuring Interfaces
Monitoring Operations on the Fast Ethernet and Gigabit Ethernet Interfaces
Enter the show controller command to display information about the Fast Ethernet controller chip.
Example 4-9 shows the output from the show controller command, which shows statistics including
initialization block information.
Example 4-9 show controller Command Output
Router# show controller fastEthernet 0
IF Name: FastEthernet0
Port Status DOWN
Send Flow Control : Disabled
Receive Flow Control : Enabled
MAC registers
CMCR : 0x0000042D (Tx Enabled, Rx Disabled)
CMPR : 0x150B0A80 (Long Frame Disabled)
FCR : 0x0000A00B (Rx Pause detection Enabled)
MII registers:
Control Register (0x0): 0x4000 (Auto negotiation disabled)
Status Register (0x1): 0x7809 (Link status Down)
PHY Identification Register 1 (0x2): 0x40
PHY Identification Register 2 (0x3): 0x61D4
Auto Neg. Advertisement Reg (0x4): 0x1E1 (Speed 100, Duplex Full)
Auto Neg. Partner Ability Reg (0x5): 0x0 (Speed 10, Duplex Half)
Auto Neg. Expansion Register (0x6): 0x4
100Base-X Aux Control Reg (0x10): 0x2000
100Base-X Aux Status Register(0x11): 0x0
100Base-X Rcv Error Counter (0x12): 0x0
100Base-X False Carr. Counter(0x13): 0x0
Enter the show run interface [type number] command to display information about the con figuration of
the Fast Ethernet interface. The command is useful when there are multiple interfaces and you want to
look at the configuration of a specific interface.
Example 4-10 shows output from the show run interface [type number] command, which includes
information about the IP address or lack of IP address and the state of the interface.
Example 4-10 show run interface Command Output
daytona# show run interface FastEthernet 1
Building configuration...
Current configuration : 56 bytes
!
interface FastEthernet1
no ip address
shutdown
end