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S12700 V200R010C00 Configuration Guide - Ethernet Switching

This document describes the configuration of Ethernet services, including configuring link aggregation, VLANs, Voice VLAN, VLAN mapping, QinQ, GVRP, MAC table, STP/RSTP/MSTP, SEP, and so on.
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Enabling the Voice VLAN Function

Enabling the Voice VLAN Function


To implement the voice VLAN function, configure the VLAN used to forward voice packets on the switch as a voice VLAN and enable the voice VLAN. You are advised to configure different VLANs for voice and data services to facilitate management.


  1. Run:


    The system view is displayed.

  2. Run:

    interface interface-type interface-number

    The interface view is displayed.

  3. Run:

    voice-vlan vlan-id enable [ include-untagged | include-tag0 ]*

    A voice VLAN is configured and the voice VLAN function is enabled on the interface.

    By default, the voice VLAN function is disabled on an interface.

    • VLAN 1 cannot be configured as a voice VLAN.

    • To transmit different services, ensure that the voice VLAN and default VLAN on an interface are different VLANs.

    • Only one voice VLAN on an interface can be configured as a voice VLAN at a time.

    • After a voice VLAN is configured on an interface, VLAN mapping, VLAN stacking, or traffic policies cannot be configured on the interface.

    • When IP phones send packets tagged with VLAN 0, include-tag0 must be specified on interfaces of X series cards. On other models, include-untagged takes effect for untagged packets and packets tagged with VLAN 0.

Updated: 2019-08-21

Document ID: EDOC1000142081

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