Displaying The Interface Auto-Mdix Configuration - Cisco Catalyst 4500 Series Software Configuration Manual

Command
Step 1
Switch# configure terminal
Step 2
Switch(config)# interface
interface-id
Step 3
Switch(config-if)# speed auto
Step 4
Switch(config-if)# mdix auto
Step 5
Switch(config-if)# end
Step 6
Switch# show interfaces
interface-id
Step 7
Switch# copy running-config
startup-config
To disable auto-MDIX, use the no mdix auto interface configuration command.
This example shows how to enable auto-MDIX on a port:
Switch# configure terminal
Switch(config)# interface fastethernet 6/5
Switch(config-if)# speed auto
Switch(config-if)# mdix auto
Switch(config-if)# end

Displaying the Interface Auto-MDIX Configuration

To display the interface speed and duplex mode configuration for an interface, perform this task:
Command
Step 1
Switch> enable
Step 2
Switch# show interfaces type slot/interface
Depending on how the speed auto and the mdix auto commands are configured on a supported line card interface, the show
interfaces command displays the following possible auto-MDIX statuses:
Table 9-8 shows the auto-MDIX setting and operational state and the status of auto-MDIX.
Table 9-8
Auto-MDIX Setting and Operational State
on an Interface
Auto-MDIX on (operational: on)
Auto-MDIX on (operational: off)
Auto-MDIX off
Configuring Optional Interface Features
Purpose
Enters global configuration mode
Enters interface configuration mode for the physical interface to be
configured.
Configures the port to autonegotiate speed with the connected device.
Enables auto-MDIX on the port.
Returns to privileged EXEC mode.
Verifies the configuration of the auto-MDIX feature on the interface.
(Optional) Saves your entries in the configuration file.
Auto-MDIX and Operational State
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS
9
Purpose
Enables privileged EXEC mode.
Enter your password if prompted.
•
Displays the interface auto-MDIX configuration setting and
operational state.
Description
Auto-MDIX is enabled and is fully functioning.
Auto-MDIX is enabled on this interface but it is
not functioning. To allow auto-MDIX feature to
function properly, you must also set the interface
speed to be autonegotiated.
Auto-MDIX has been disabled with the
no mdix auto command.
Chapter 9 Configuring Interfaces