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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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Adding an Eth-Trunk to an E-Trunk

Adding an Eth-Trunk to an E-Trunk


After you configure an E-Trunk, add Eth-Trunks to the E-Trunk. Then the E-Trunk implements backup of LAGs between the two member devices to enhance network reliability.


  1. Run system-view

    The system view is displayed.

  2. Run interface eth-trunk trunk-id

    The Eth-Trunk interface view is displayed.

    Only Eth-Trunks in LACP mode can be added to an E-Trunk.

  3. Run e-trunk e-trunk-id [ remote-eth-trunk eth-trunk-id ]

    The Eth-Trunk is added to an E-Trunk.

    An Eth-Trunk can be added to only one E-Trunk.

    On two E-Trunk member devices, the IDs of the Eth-Trunks added to the E-Trunk can be different. When adding Eth-Trunks with different IDs in LACP mode on PEs to an E-Trunk, you must specify remote-eth-trunk so that the E-Trunk can work normally.

Updated: 2019-10-18

Document ID: EDOC1000178310

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