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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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Intra-VLAN Layer 2 Isolation

Intra-VLAN Layer 2 Isolation

You can add different users to different VLANs to implement Layer 2 isolation between users. If an enterprise has many users, VLANs have to be allocated to all users that are not allowed to communicate with each other. This user isolation method uses a large number of VLANs and makes configuration more complex, increasing the maintenance workload of the network administrator.

Huawei provides intra-VLAN Layer 2 isolation technologies including port isolation, and Modular QoS Command-Line Interface (MQC).

Port Isolation

Port isolation can isolate interfaces in a VLAN. You can add interfaces to a port isolation group to disable Layer 2 packet transmission between the interfaces. Interfaces in different port isolation groups or out of port isolation groups can exchange packets with other interfaces. In addition, interfaces can be isolated unidirectionally, providing more secure and flexible networking.

For details about port isolation, see Configuring Interface Isolation in Huawei AR Series IOT Gateway Configuration Guide - Interface Management.

Intra-VLAN Layer 2 Isolation Based on the Traffic Policy

A traffic policy is configured by binding traffic classifiers to traffic behaviors. You can define traffic classifiers on a device to match packets with certain characteristics and associate the traffic classifiers with the permit or deny behavior in a traffic policy. The device then permits or denies packets matching the traffic classifiers. In this way, intra-VLAN unidirectional or bidirectional isolation is implemented based on the traffic policy.

The device supports intra-VLAN Layer 2 isolation based on MQC and simplified ACL-based traffic policies. For details about MQC and simplified ACL-based traffic policies, see MQC Configuration and ACL-based Simplified Traffic Policy Configuration in Huawei AR Series IOT Gateway Configuration Guide - QoS.

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Updated: 2019-05-25

Document ID: EDOC1000097279

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