Specifications

4-4
Cisco PA-FE-TX and Cisco PA-FE-FX Fast Ethernet 100BaseT Port Adapter Installation and Configuration
OL-2899-02
Chapter 4 Configuring the PA-FE-TX or PA-FE-FX
Configuring the Interfaces
Configuring PA-FE-TX or PA-FE-FX Transmission Mode
Half-duplex operation is the default transmission mode for the PA-FE-TX or PA-FE-FX. Use the
full-duplex command to configure full-duplex operation for the PA-FE-TX or PA-FE-FX as follows:
Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#
Router(config)# interface fastethernet 4/0
Router(config-if)# full-duplex
Ctrl-z
Use the show interfaces fastethernet command to verify that the 4/0 Fast Ethernet interface is now
configured for full-duplex operation as follows:
Router# show interfaces fastethernet 4/0
FastEthernet 4/0 is administratively up, line protocol is up
(display text omitted)
Encapsulation ARPA, loopback not set, keepalive not set, fdx, 100BaseTX
Use the no full-duplex command to return the interface to half-duplex operation as follows:
Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)# interface fastethernet 4/0
Router(config-if)# no full-duplex
Ctrl-z
Router#
Use the show interfaces fastethernet command to verify that the 4/0 Fast Ethernet interface is now
configured for half-duplex operation as follows:
Router# show interfaces fastethernet 4/0
FastEthernet2/0 is administratively up, line protocol is up
(display text omitted)
Encapsulation ARPA, loopback not set, keepalive not set, hdx, 100BaseTX
(display text omitted)
To check the interface configuration using show commands, proceed to the “Checking the
Configuration” section on page 4-5
Note When you enter the show interfaces fastethernet command using Cisco IOS Release 11.1(10) or
later, or Release 11.2(4) or later with updated Cisco hardware, the “overrun” field is always zero.
If you use this command because you are troubleshooting potential network problems, you may be
expecting to see a number in the overrun field.
Configuring PA-FE-TX or PA-FE-FX Media Type
The RJ-45 receptacle is the default media type for the PA-FE-TX and the SC receptacle (for fiber-optic
connections) is the default media type for the PA-FE-FX. Use the media-type mii command to configure
the MII receptacle as the media type for the PA-FE as follows:
Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)# interface fastethernet 4/0
Router(config-if)# media-type mii
Ctrl-z