Configuring Voice Vlans; Overview; Methods Of Identifying Ip Phones; Identifying Ip Phones Through Oui Addresses - H3C S7500E-X Configuration Manual

Configuring voice VLANs

Overview

A voice VLAN is used for transmitting voice traffic. The device can configure QoS parameters for
voice packets to ensure higher transmission priority of the voice packets.
Common voice devices include IP phones and integrated access devices (IADs). This chapter uses
IP phones as an example.
For an IP phone to access a device, the device must perform the following operations:
Identify the IP phone in the network and obtain the MAC address of the IP phone.
1.
Advertise the voice VLAN information to the IP phone.
2.
After receiving the voice VLAN information, the IP phone performs automatic configuration. Voice
packets sent from the IP phone can then be transmitted within the voice VLAN.

Methods of identifying IP phones

Devices can use the OUI addresses or LLDP to identify IP phones.

Identifying IP phones through OUI addresses

A device identifies voice packets based on their source MAC addresses. A packet whose source
MAC address complies with an Organizationally Unique Identifier (OUI) address of the device is
regarded as a voice packet.
You can use system default OUI addresses (see
You can manually remove or add the system default OUI addresses.
Table 10 Default OUI addresses
Number
1
2
3
4
5
6
7
8
Typically, an OUI address refers to the first 24 bits of a MAC address (in binary notation) and is a
globally unique identifier that IEEE assigns to a vendor. However, OUI addresses in this chapter are
addresses that the system uses to identify voice packets. They are the logical AND results of the
mac-address and oui-mask arguments in the voice-vlan mac-address command.
Table 10) or configure OUI addresses for the device.
OUI address
0001-E300-0000
0003-6B00-0000
0004-0D00-0000
000F-E200-0000
0060-B900-0000
00D0-1E00-0000
00E0-7500-0000
00E0-BB00-0000
158
Vendor
Siemens phone
Cisco phone
Avaya phone
H3C Aolynk phone
Philips/NEC phone
Pingtel phone
Polycom phone
3Com phone