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S12700 V200R010C00 Configuration Guide - Device Management

This document describes the principles and configurations of the Device Management features, and provides configuration examples of these features.
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Configuring the EEE function

Configuring the EEE function


A device provides power for each interface. Even though an interface is idle, it consumes the same power as working interfaces. This wastes power. After the Energy Efficient Ethernet (EEE) function is configured on an electrical interface, the system reduces the power on the interface when the interface is idle and restores the power when the interface starts to transmit data. This reduces power consumption in the system.


Only electrical interfaces (including combo electrical interfaces ) support the EEE function. Optical interfaces do not support the EEE function.

If an electronic interface works at 10 Mbit/s after auto-negotiation, the EEE function does not take effect.

Only the ET1D2G48TX1E on the S12700 support the EEE function.


  1. Run:


    The system view is displayed.

  2. Run:

    interface interface-type interface-number

    The interface view is displayed.

  3. Run:

    energy-efficient-ethernet enable

    EEE function is enabled on the electrical interface.

    By default, the EEE function is disabled on an electrical interface.


    The EEE function takes effect only when it is configured on both ends of a link.

Updated: 2019-08-21

Document ID: EDOC1000142080

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