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AR500, AR510, and AR530 V200R007 CLI-based Configuration Guide - Ethernet Switching

This document describes the configuration of Ethernet services, including configuring transparent bridge, MAC table, link aggregation, VLANs, STP/RSTP/MSTP, and so on.The document provides the configuration procedures and configuration examples to illustrate the service configuration methods and application scenario.
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Application Environment

Application Environment

This section describes the applicable environment of QinQ.

Basic QinQ

As shown in Figure 8-5, enterprise A has two branches that connect to the carrier network through PE1 and PE2 respectively. Enterprise A has different services, so different VLANs are assigned. To save public VLAN IDs, it is required that traffic between two branches of enterprise A be transparently transmitted through the public network, users using the same service in different branches of enterprise A be allowed to communicate, and users using different services be isolated. You can configure QinQ on the network-side interface of the CE to meet the preceding requirements.

Figure 8-5  Typical networking of basic QinQ

Selective QinQ

As shown in Figure 8-6, enterprise A has two branches that connect to the carrier network through PE1 and PE2 respectively. Enterprise A has different services, so different VLANs are assigned. Data services are transmitted in VLAN 10 to VLAN 30, and voice services are transmitted in VLAN 31 to VLAN 50. To save public VLAN IDs, it is required that traffic between two branches of enterprise A be transparently transmitted through the public network, users using the same service in different branches of enterprise A be allowed to communicate, users using different services be isolated, and voice services be transmitted preferentially. You can configure selective QinQ on the user-side interface of the CE to meet the preceding requirements.

Figure 8-6  Typical networking of selective QinQ
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Updated: 2019-05-25

Document ID: EDOC1000097279

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