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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 2:2 VLAN Mapping

Configuring 2:2 VLAN Mapping

Context

QinQ is used to send double-tagged packets, which prevents the conflict between C-VLAN IDs and S-VLAN IDs and differentiates services and users. However, the interface will discard the packets because C-VLAN IDs are different from S-VLAN IDs. To ensure communication continuity, configure 2:2 VLAN mapping on the PE and replace double C-VLAN tags with double S-VLAN tags.

NOTE:

The ES0D0G24SA00 and ES0D0G24CA00 cards of the S7700, and the EH1D2S24CSA0 and EH1D2G24SSA0 cards of the S9700 do not support VLAN mapping for double-tagged packets.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run interface interface-type interface-number

    The Ethernet interface view is displayed.

  3. Run port link-type { hybrid | trunk }

    The port link-type is set.

  4. Run port vlan-mapping vlan vlan-id1 inner-vlan vlan-id2 map-vlan vlan-id3 map-inner-vlan vlan-id4 [ remark-8021p 8021p-value ]

    The outer and inner VLAN tags are replaced.

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Updated: 2019-10-18

Document ID: EDOC1000178310

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