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Configuration Guide - Ethernet Switching

CloudEngine 8800, 7800, 6800, and 5800 V200R003C00

This document describes the configuration of Ethernet services, including configuring MAC address table, link aggregation, VLANs, MUX VLAN, Voice VLAN, VLAN mapping, QinQ, GVRP, VCMP, STP/RSTP/MSTP, VBST, SEP, RRPP, ERPS, LBDT, and Layer 2 protocol transparent transmission.
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Selective QinQ

Selective QinQ

Selective QinQ is more flexible than QinQ, and is also called VLAN stacking. In addition to basic QinQ functions, selective QinQ can perform different actions for packets from different VLANs, including:
  • VLAN ID-based selective QinQ: adds different outer VLAN tags to packets with different inner VLAN IDs.
  • MQC-based selective QinQ: adds different outer tags to packets based on QoS policies. MQC-based selective QinQ implements differentiated services.

Differences between basic QinQ and selective QinQ are as follows:

  • Basic QinQ: adds the same outer tag to all the frames arriving at the Layer 2 QinQ interface.

  • Selective QinQ: adds different outer tags to the frames with inner VLAN tags or frames matching traffic classification rules. VLAN assignment is more accurate.

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Updated: 2019-05-08

Document ID: EDOC1100004351

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