H3C S7500 Series Ethernet Switches Operation Manual

Operation Manual – Extended VLAN Application
H3C S7500 Series Ethernet Switches Chapter 1
Voice VLAN Configuration
1-1
Chapter 1 Voice VLAN Configuration
When configuring voice VLAN, go to these sections for information you are interested
in:
z Voice VLAN Overview
z Voice VLAN Configuration
z Displaying Voice VLAN Configuration
z Voice VLAN Configuration Examples
1.1 Voice VLAN Overview
Voice VLANs are VLANs configured specially for voice data stream. By adding the
ports that connect voice devices to voice VLANs, you can configure quality of service
(QoS) attributes for voice data, increasing the transmission priority of voice data stream
and ensuring voice quality.
S7500 series Ethernet switches determine whether a received packet is a voice packet
by checking its source MAC address. Packets containing source MAC addresses that
comply with the voice device organizationally unique identifier (OUI) addresses are
regarded as voice traffic and are transmitted in the voice VLAN.
You can configure OUI addresses in advance or use the default OUI addresses.
 Note:
An OUI address is a globally unique identifier assigned to a vendor by IEEE. You can
determine which vendor a device belongs to according to the OUI address which forms
the first 24 bits of a MAC address.
The following table shows the five default OUI addresses of a switch.
Table 1-1 Default OUI addresses preset by the switch
Number OUI Address Vendor
1 00e0-bb00-0000 3com phone
2 0003-6b00-0000 Cisco phone
3 00e0-7500-0000 Polycom phone