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Configuration Guide - Ethernet Switching

S7700 and S9700 V200R012C00

This document describes the configuration of Ethernet services, including configuring MAC address table, link aggregation, VLANs, VLAN aggregation, MUX VLAN, VLAN termination, Voice VLAN, VLAN mapping, QinQ, GVRP, VCMP, STP/RSTP/MSTP, VBST, SEP, RRPP, ERPS, LBDT, HVRP, and Layer 2 protocol transparent transmission.
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An Interface with Selective QinQ Configured Fails to Transparently Transmit the Single VLAN ID

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

Fault Symptom

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


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


Run the display this command on the interface 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: 2019-01-18

Document ID: EDOC1100038843

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