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Fat AP and Cloud AP V200R010C00 Command Reference

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
auto duplex

auto duplex

Function

The auto duplex command configures the duplex mode on an Ethernet electrical interface in auto-negotiation mode.

The undo auto duplex command restores the default duplex mode on an Ethernet electrical interface in auto-negotiation mode.

By default, the duplex mode on an Ethernet electrical interface is negotiated with the peer interface.

Format

auto duplex { half | full } *

undo auto duplex

Parameters

Parameter

Description

Value

half Sets the duplex mode on an Ethernet electrical interface in auto-negotiation mode to half-duplex. -
full Sets the duplex mode on an Ethernet electrical interface in auto-negotiation mode to full-duplex. -

Views

GE interface view, MultiGE interface view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

In auto-negotiation mode, interfaces on both ends of a link negotiate their duplex mode. If the negotiated duplex mode is not the required one, you can run the auto duplex command to set the required duplex mode in auto-negotiation mode. For example, two interfaces on both ends support full-duplex mode and half-duplex mode. If the two interfaces negotiate to work in half-duplex mode, but they are required to work in full-duplex mode, you can run the auto duplex full command to set the full-duplex mode for the two interfaces.

Prerequisites

The Ethernet interface works in auto-negotiation mode.

Precautions

  • For details about the duplex modes that various Ethernet interfaces support, see Overview of Ethernet Interfaces in the Configuration Guide-Overview of Ethernet Interfaces.
  • In auto-negotiation mode, a GE electrical interface that works at a rate of 1000 Mbit/s supports the full-duplex mode. If the duplex mode is changed to half-duplex, the GE electrical interface works at a maximum rate of 100 Mbit/s.

The interfaces on both ends of a link must have the same duplex mode.

Example

# Configure Ethernet electrical interface GE0/0/1 in auto-negotiation mode to work in half-duplex mode.
<Huawei> system-view
[Huawei] interface gigabitethernet 0/0/1
[Huawei-GigabitEthernet0/0/1] auto duplex half
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Updated: 2019-11-21

Document ID: EDOC1100064352

Views: 201102

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