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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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Configuring an OUI for a Voice VLAN

Configuring an OUI for a Voice VLAN


An OUI is the first 24 bits of a 48-bit MAC address assigned to each vendor by the Institute of Electrical and Electronics Engineers (IEEE). Voice packets sent by IP phones can be identified by the MAC address ranges requested by IP phone vendors.

In voice VLAN, the OUI is user-defined and not necessarily 24 bits long. The OUI is the result of the AND operation between the MAC address and mask in the voice-vlan mac-address command.


  1. Run:


    The system view is displayed.

  2. Run:

    voice-vlan mac-address mac-address mask oui-mask [ description text ]

    An OUI is configured for a voice VLAN.

    By default, no OUI address is set.

    When configuring an OUI for a voice VLAN, note the following:

    • The MAC address cannot be all 0s, multicast address, or broadcast address.

    • The system supports a maximum of 100 OUIs. When the system is configured with 100 OUIs, subsequent configurations will not take effect.

    • When you run the undo voice-vlan mac-address mac-address command to delete an OUI, set mac-address to the result of the logical AND operation between the OUI and the OUI mask that you set.

Updated: 2019-08-21

Document ID: EDOC1000142081

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