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CLI-based Configuration Guide - Interface Management

AR100, AR120, AR160, AR1200, AR2200, AR3200, and AR3600 V300R003

This document provides the basic concepts, configuration procedures, and configuration examples of the interfaces supported by the device.
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Configuring a VE Interface

Configuring a VE Interface

Virtual-Ethernet (VE) interfaces allow one data link protocol to transmit data of other link layer protocols.



The AR109, AR109W, AR109GW-L, AR129CGVW-L does not support the Virtual-Ethernet (VE) interface.

The VE interface is applicable to PPPoEoA and IPoEoA, and can be applied to the firewall and route configurations.

In addition, the VE interface can be configured with:
  • Routing protocol
  • VLAN


Before configuring a VE interface, complete the following task:
  • Powering on the device and performing self-check


  1. Run system-view

    The system view is displayed.

  2. Run interface virtual-ethernet ve-number

    A VE interface is created and the VE interface view is displayed.


    After establishing a binding relationship between a VE interface and the permanent virtual channel (PVC) that transmits PPPoEoA or IPoEoA data, you can delete this VE interface only when you unbind the VE interface from the PVC.

  3. Configuring a VE interface

    The configuration of a VE interface is the same as that of an Ethernet interface. For details about how to configure a VE interface, see Ethernet Interface Configuration.

  4. (Optional) Run mac-address

    The MAC address for the VE interface is configured.

    The MAC address of a VE interface is the system MAC address, and may conflict with the MAC address of another interface (a physical or logical interface). If the MAC address of the VE interface conflicts with that of another interface, a loop probably occurs or traffic forwarding on the VE interface may fail.

    In this case, you must run this command to configure a MAC address for the VE interface to guarantee the normal transmission of service data flows.

Verifying the Configuration

  • Run the display interface virtual-ethernet [ ve-number ] command to check the status of a VE interface.

Updated: 2019-03-06

Document ID: EDOC1100069331

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