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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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An Interface Configured with Selective QinQ Fails to Transparently Transmit the Single VLAN ID

An Interface Configured with Selective QinQ Fails to Transparently Transmit the Single VLAN ID

Fault Symptom

After an interface on an SA card is configured with selective QinQ, the interface fails to transparently transmit single-tagged packets.


SA cards include the ES0D0G24SA00, ES0D0G24CA00, EH1D2S24CSA0, and EH1D2G24SSA0 cards.


Run the display this command on the interface configured with selective QinQ to check whether VLAN mapping is configured to map the VLAN ID to be transparently transmitted to itself (for example, port vlan-mapping vlan 20 map-vlan 20).
  • If such VLAN mapping is not configured, run the port vlan-mapping vlan vlan-id1 map-vlan vlan-id2 command on the interface to configure it.
  • If such VLAN mapping is configured, collect logs and alarms and contact technical support personnel.
Updated: 2019-10-18

Document ID: EDOC1000178310

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