3com S7906E Manuel De Montage

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Voice VLAN Configuration 
When configuring a voice VLAN, go to these sections for information you are interested in: 
 
 
Overview 
A voice VLAN is configured specially for voice traffic. After assigning the ports connecting to voice 
devices to a voice VLAN, you can configure quality of service (QoS) parameters for the voice traffic, 
thus improving transmission priority and ensuring voice quality.  
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 Organizationally Unique Identifier 
(OUI) address is regarded as voice traffic. 
You can configure the OUI addresses in advance or use the default OUI addresses. 
 lists the 
default OUI address for each vendor’s devices.  
Table 4-1 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