Configuring A Voice Vlan; Overview; Oui Addresses; Voice Vlan Assignment Modes - HP 6125G Configuration Manual

Configuring a voice VLAN

Overview

A voice VLAN is configured for voice traffic. After assigning the ports that connect to voice devices to a
voice VLAN, the system automatically configures 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.

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 the Organizationally Unique Identifier (OUI)
address of the voice device 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.
default OUI address for each vendor's devices.
Table 14 The default OUI addresses of different vendors
Number
1
2
3
4
5
6
7
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.

Voice VLAN assignment modes

A port can be assigned to a voice VLAN in one of the following modes:
Automatic mode—The system matches the source MAC address carried in the protocol packets sent
•
when an IP phone is powered on against the device's OUI addresses. If the system finds a match,
it automatically assigns the receiving port to the voice VLAN, issues ACL rules, and configures the
packet precedence. You can configure a voice VLAN aging time on the device. The system will
remove a port from the voice VLAN if no packet is received from the port during the aging time. The
system automatically assigns ports to, or removes ports from, a voice VLAN. Automatic mode is
OUI address
0001-E300-0000
0003-6B00-0000
0004-0D00-0000
00D0-1E00-0000
0060-B900-0000
00E0-7500-0000
00E0-BB00-0000
131
Table 14
Vendor
Siemens phone
Cisco phone
Avaya phone
Pingtel phone
Philips/NEC phone
Polycom phone
3Com phone
lists the