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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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Configuring 2-to-1 QinQ Mapping

Configuring 2-to-1 QinQ Mapping

Context

2-to-1 QinQ mapping allows a sub-interface to map an outer tag in a received double-tagged packet to a specified tag and retain the inner VLAN tag.

Procedure

  1. Run system-view

    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 quit

    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 pe-vid vlan-id1 ce-vid vlan-id2 [ to vlan-id3 ] map-vlan vid vlan-id4

    The sub-interface is configured to map the outer tag of double-tagged packets to a specified tag.

    The original outer tag of double-tagged packets specified in the command must be different from outer tags specified on all the other sub-interfaces.

    NOTE:
    • 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.

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Updated: 2019-10-18

Document ID: EDOC1000178310

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