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Configuration Guide - Ethernet Switching

S7700 and S9700 V200R011C10

This document describes the configuration of Ethernet services, including configuring link aggregation, VLANs, Voice VLAN, VLAN mapping, QinQ, GVRP, MAC table, STP/RSTP/MSTP, SEP, and so on.
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Setting the Manual Load Balancing Mode

Setting the Manual Load Balancing Mode


Link aggregation can work in manual load balancing mode and LACP mode.

In manual load balancing mode, you must manually create an Eth-Trunk and add member interfaces to the Eth-Trunk. All active links forward data and evenly load balance traffic. The manual load balancing mode is used when the peer device does not support LACP.

If an Eth-Trunk interface has member interfaces, you can switch the Eth-Trunk interface's working mode between manual mode and LACP mode. However, if the Eth-Trunk interface is added to an E-Trunk, you cannot change its working mode.

To delete existing member interfaces, run the undo eth-trunk command in the interface view or the undo trunkport interface-type interface-number command in the Eth-Trunk interface view.


  1. Run system-view

    The system view is displayed.

  2. Run interface eth-trunk trunk-id

    The Eth-Trunk interface view is displayed.

  3. Run mode manual load-balance

    A working mode of the Eth-Trunk is configured.

    By default, an Eth-Trunk works in manual load balancing mode.

    Before configuring an Eth-Trunk, ensure that both ends use the same working mode. If the local end works in manual load balancing mode, the remote end must use the manual load balancing mode.


    When configuring the Eth-Trunk on the EH1D2S24CEA0 card of the S9700, do not configure the Eth-Trunk to work in manual load balancing mode.

Updated: 2019-10-18

Document ID: EDOC1000178310

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