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S12700 V200R010C00 Configuration Guide - Ethernet Switching

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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Configuring 1-to-1 QinQ Mapping

Configuring 1-to-1 QinQ Mapping


1-to-1 QinQ mapping allows a sub-interface to map a tag in a received single-tagged packet to a specified tag.


  1. Run:


    The system view is displayed.

  2. Run:

    interface interface-type interface-number

    The interface view is displayed.

  3. Run:

    port link-type { hybrid | trunk }

    The port link-type is set.

  4. Run:


    Return to the system view.

  5. Run:

    interface interface-type interface-number.subinterface-number

    The view of the CE-side Ethernet or Eth-Trunk sub-interface of the PE is displayed.

  6. Run:

    qinq mapping vid vlan-id1 [ to vlan-id2 ] map-vlan vid vlan-id3

    The sub-interface is configured to map a tag of a packet to a specified tag.

    The original VLAN IDs of single-tagged packets specified in the command must be different from the outer VLAN IDs specified on all the other sub-interfaces.

    • QinQ mapping cannot be used with stacking, QinQ termination, and Dot1q termination commands on the same sub-interface.

    • If the PW-side interface is a Layer 3 interface switched by the undo portswitch command, the AC-side interface cannot be a Layer 3 interface or subinterface belonging to a Layer 3 interface; otherwise, traffic forwarding is abnormal.

Updated: 2019-08-21

Document ID: EDOC1000142081

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