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Configuration Guide - Ethernet Switching

S1720, S2700, S5700, and S6720 V200R012(C00 and C20)

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, and Layer 2 protocol transparent transmission.
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Configuring QinQ-based Layer 2 Protocol Transparent Transmission

Configuring QinQ-based Layer 2 Protocol Transparent Transmission

When each interface of a backbone device is connected to multiple user networks and Layer 2 protocol packets sent from user networks contain VLAN tags, configure QinQ-based Layer 2 protocol transparent transmission. This configuration allows Layer 2 protocol packets to be transparently transmitted on the backbone network and reduces VLAN IDs that the carrier uses.

Pre-configuration Tasks

Before configuring QinQ-based Layer 2 protocol transparent transmission, complete the following task:
  • Set link layer protocol parameters and IP addresses for interfaces to ensure that the link layer protocol on the interfaces is Up.
  • Use the bpdu enable command to enable the interfaces to send BPDUs to the CPU.

Updated: 2018-12-24

Document ID: EDOC1100038339

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