Setting the MDIX mode of an Ethernet interface


[IMPORTANT: ]

IMPORTANT:

  • Fiber ports do not support the MDIX mode setting.

  • 10-GE copper ports support only the automdix mode.


A physical Ethernet interface contains eight pins, each of which plays a dedicated role. For example, pins 1 and 2 transmit signals, and pins 3 and 6 receive signals. You can use both crossover and straight-through Ethernet cables to connect copper Ethernet interfaces. To accommodate these types of cables, a copper Ethernet interface can operate in one of the following Medium Dependent Interface-Crossover (MDIX) modes:

To enable the interface to communicate with its peer, set the MDIX mode of the interface mode by using the following guidelines:

To set the MDIX mode of an Ethernet interface:

Step

Command

Remarks

1. Enter system view.

system-view

N/A

2. Enter Ethernet interface view.

interface interface-type interface-number

N/A

3. Set the MDIX mode of the Ethernet interface.

mdix-mode { automdix | mdi | mdix }

By default, a copper Ethernet interface operates in auto mode to negotiate pin roles with its peer.