Introduction To Vlan Mapping; Vlan Mapping Features Supported By The S7700; Configuring Vlan Mapping Of Single Vlan Tag; Establishing The Configuration Task - Huawei Quidway S7700 Configuration Manual - Ethernet

Quidway S7700 Smart Routing Switch
Configuration Guide - Ethernet

4.1 Introduction to VLAN Mapping

This section describes the concept of VLAN mapping.
VLAN Mapping is a process of mapping the customer VLAN to the carrier VLAN by replacing
the inner and outer VLAN tags of data frames. In this manner, VLAN aggregation is realized,
and services of customers can be transmitted according to the network planning of the carrier.
The S7700 can process data frames in the following ways:
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4.2 VLAN Mapping Features Supported by the S7700

This section describes VLAN mapping features supported by the S7700.
The S7700 supports the following VLAN mapping features:
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For the commands related to VLAN mapping of single tag based on the traffic policy, see the
Quidway S7700 Smart Routing Switch Command Reference - QoS.

4.3 Configuring VLAN Mapping of Single VLAN Tag

This section describes how to configure VLAN mapping of single VLAN tag.

4.3.1 Establishing the Configuration Task

Applicable Environment
When two private networks in different VLANs communicate with each other through a public
network, the user packets may carry the C-VLAN tag when reaching the ISP network. You can
configure VLAN mapping on the edge device of the public network so that the VLANs of private
networks are separated from VLANs of the public network. This saves VLAN resources of the
public network.
Pre-configuration Tasks
Before configuring VLAN mapping, complete the following task:
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Replace the VLAN tag of a frame with a single tag.
Replace both VLAN tags of a frame with double tags.
Replace the VLAN outer tag of a frame with double tags.
Single-tag and double-tag VLAN mapping based on the interface and VLAN
Single-tag VLAN mapping based on the interface and 802.1p priority
Single-tag VLAN mapping based on the interface, 802.1p priority, and VLAN
Single-tag and double-tag VLAN mapping based on the traffic policy
Configuring VLANs
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