H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 115)

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Voice VLAN configuration
This chapter includes these sections:
• Overview
• Configuring a voice VLAN
• Displaying and maintaining voice VLAN
• Voice VLAN configuration examples
NOTE:
•
The term "switch" or "device" in this chapter refers to the switching engine on a WX3000E wireless
switch.
• The WX3000E series comprises WX3024E and WX3010E wireless switches.
• The port numbers in this chapter are for illustration only.
Overview
As voice communication technologies grow more mature, voice devices are more and more widely
deployed, especially on broadband networks, where voice traffic and data traffic often co-exist. Usually,
compared to data traffic, voice traffic is given a higher transmission priority for the purpose of reducing
transmission delay and packet loss.
A voice VLAN is configured especially for voice traffic. After assigning the ports connecting to voice
devices to a voice VLAN, the system automatically configures quality of service (QoS) parameters for
voice traffic, improving the transmission priority of voice traffic and ensuring voice quality.
NOTE:
Common voice devices include IP phones and integrated access devices (IADs). Only IP phones are used
in the voice VLAN configuration examples in this chapter.
OUI addresses
A device determines whether a received packet is a voice packet by checking its source MAC address.
A packet whose source MAC address complies with the voice device’s Organizationally Unique
Identifier (OUI) address is regarded as voice traffic.
You can configure the OUI addresses of a device in advance or use the default OUI addresses.
Table 14
lists the default OUI address for each vendor’s devices.
Table 14 The default OUI addresses of different vendors
Number OUI address Vendor
1 0001-E300-0000 Siemens phone
2 0003-6B00-0000 Cisco phone