4.3.2 Enabling the Voice VLAN Function on an Interface
After the voice VLAN is configured on the AR3200, the AR3200 identifies voice data flows
based on the source MAC addresses of incoming data flows. If the source MAC address of a
flow matches the OUI configured on the AR3200, the flow is identified as a voice data flow.
After the AR3200 receives a voice data flow, it changes the priority of the flow and transmits
the flow in the voice VLAN to ensure the call quality.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
interface interface-type interface-number
The interface view is displayed.
Step 3 Run:
voice-vlan vlan-id enable
The specified VLAN is configured as a voice VLAN and the voice VLAN function is enabled.
By default, the voice VLAN function is disabled.
NOTE
l The voice VLAN and default VLAN of an interface must be different VLANs to ensure efficient
transmission of different types of service traffic.
l Before deleting a VLAN that has been configured as a voice VLAN, run the undo voice-vlan
enable command to disable the voice VLAN function.
l Only one VLAN can be configured as the voice VLAN on an interface.
----End
4.3.3 Setting the OUI of the Voice VLAN
The AR3200 identifies voice data flows based on the source MAC addresses of incoming data
flows. If the source MAC address of a data flow matches the Organizationally Unique Identifier
(OUI) configured on the AR3200, the AR3200 identifies the data flow as a voice data flow.
Context
The OUI is the first 24 bits of a MAC address. The Institute of Electrical and Electronics
Engineers (IEEE) assigns an OUI to each vendor, so you can identify the vendor of a device
according to the OUI. You can set the mask of the OUI on the AR3200 to adjust the length of
the MAC address that the AR3200 matches with the OUI. Perform the following steps to set the
OUI of a voice VLAN.
Huawei AR3200 Series Enterprise Routers
Configuration Guide - LAN 4 Voice VLAN Configuration
Issue 02 (2012-03-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
127
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