Cisco Systems CX-FEIP-2FX=, CX-FEIP-1TX= manual Configuring Interfaces-Descriptions and Examples

Configuring Interfaces—Descriptions and Examples

FE half-duplex operation is the default. To change to full-duplex operation, use the following series of commands:

Router# configure terminal

Enter configuration commands, one per line. End with CNTL/Z.

Router(config)#

Router(config)# interface fastethernet 3/0/0

Router(config-if)# full-duplex

Ctrl-z

Note Each 100BASE-TX or 100BASE-FX interface on an FEIP can be configured at 100 Mbps, half duplex or full duplex, for a maximum aggregate bandwidth of 200 Mbps.

Caution To prevent oversubscribing the FEIP, we recommend that you do not operate both FE interfaces on an FEIP in full-duplex mode.

Using the show interfaces fastethernet command, you can see that the 3/0/0 interface is now configured for full-duplex operation:

Router# sh int fa 3/0/0

FastEthernet 3/0/0 is administratively up, line protocol is up

(display text omitted)

Encapsulation ARPA, loopback not set, keepalive not set, fdx, 100BaseTX

To return the interface to half-duplex operation, use the no full-duplexconfiguration command as follows:

Router# config t

Enter configuration commands, one per line. End with CNTL/Z.

Router(config)# int fa 3/0/0

Router(config-if)# no full-duplex

Ctrl-z

Router#

Using the show interfaces fastethernet command, you can see that the 3/0/0 interface is now configured for half-duplex operation:

Router# sh int fa 3/0/0

FastEthernet3/0/0 is administratively up, line protocol is up

(display text omitted)

Encapsulation ARPA, loopback not set, keepalive not set, hdx, 100BaseTX

(display text omitted)

Fast Ethernet Interface Processor (FEIP) Installation and Configuration 31