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Configuring a voice VLAN (available only
on the HPE 3100 v2 EI)
Overview
A voice VLAN is configured for voice traffic. After assigning the ports that connect to voice devices to
a voice VLAN, the system can configure quality of service (QoS) parameters for voice traffic, to
improve the transmission priority of voice traffic and ensure voice quality.
Common voice devices include IP phones and integrated access devices (IADs). Only IP phones are
used in the voice VLAN configuration examples in this document.
When an IP phone accesses a device, the device must perform the following tasks:
1. Identify the IP phone and obtain the MAC address of the IP phone.
2. Advertise the voice VLAN information to the IP phone.
After receiving the voice VLAN information, the IP phone can perform automatic configuration, so the
voice packets sent out of the IP phone can be transmitted within the voice VLAN.
Methods of identifying IP phones
Identifying IP phones through OUI addresses
A device determines whether a received packet is a voice packet by evaluating its source MAC
address. A packet whose source MAC address complies with any of the Organizationally Unique
Identifier (OUI) addresses of the voice devices is regarded as voice traffic.
You can remove the default OUI address of a device manually and then add new ones manually. You
can configure the OUI addresses of a device in advance or use the default OUI addresses. Table 14
lists the defa
ult 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
3 0004-0D00-0000 Avaya phone
4 00D0-1E00-0000 Pingtel phone
5 0060-B900-0000 Philips/NEC phone
6 00E0-7500-0000 Polycom phone
7 00E0-BB00-0000 3Com phone
In general, as the first 24 bits of a MAC address (in binary format), an OUI address is a globally
unique identifier that IEEE assigns to a vendor. In this document, however, OUI addresses are
addresses that the system uses to determine whether a received packet is a voice packet. They are
the results of the AND operation of the arguments mac-address and oui-mask in the voice vlan
mac-address command.
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