Contents

• loopback (T1 interface) through nrzi-encoding

• mdix auto

loopback (T1 interface) through nrzi-encoding

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• mdix auto

mdix auto

To enable automatic media-dependent interface with crossover detection, use the mdixauto command in interface configuration mode. To turn automatic detection off, use the no form of this command.

mdix auto

no mdix auto

Syntax Description

This command has no arguments or keywords.

Command Default

Enabled

Command Modes

Interface configuration (config-if)

Command History

Release	Modification
12.2(17a)SX	Support for this command was introduced on the Supervisor Engine 720.
12.2(17d)SXB	Support for this command on the Supervisor Engine 2 was extended to Release 12.2(17d)SXB.
12.2(33)SRA	This command was integrated into Cisco IOS Release 12.2(33)SRA.

Usage Guidelines

This command is supported on all 10/100 and 10/100/1000 modules except for the following modules:

• WS-X6248-RJ45
• WS-X6248-TELCO
• WS-X6348-RJ-45
• WS-X6348-RJ-21
• WS-X6148-RJ-45
• WS-X6148-RJ-21

Examples

This example shows how to enable automatic media-dependent interface with crossover detection:

Router(config-if)# mdix auto
Router(config-if)

This example shows how to disable automatic media-dependent interface with crossover detection:

Router(config-if) no mdix auto
Router(config-if)

Related Commands

Command	Description
show interfaces	Displays the status and traffic statistics for the interfaces in the chassis.