Setting The Voice Traffic Transmission Priority; Configuring Voice Vlan Assignment Mode Of A Port - H3C S5100-SI Series Operation Manual

Operation Manual – Voice VLAN
H3C S5100-SI/EI Series Ethernet Switches
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. S5100-EI series Ethernet switches support OUI
address mask configuration. You can adjust the matching depth of MAC address by
setting different OUI address masks.
The following table lists the five default OUI addresses on S5100-EI series switches.
Table 1-1 Default OUI addresses pre-defined on the switch
Number
1
2
3
4
5

1.1.3 Setting the Voice Traffic Transmission Priority

In order to improve transmission quality of voice traffic, the switch by default re-marks
the priority of the traffic in the voice VLAN as follows:
Set the CoS (802.1p) priority to 6.
Set the DSCP value to 46.

1.1.4 Configuring Voice VLAN Assignment Mode of a Port

A port can work in automatic voice VLAN assignment mode or manual voice VLAN
assignment mode. You can configure the voice VLAN assignment mode for a port
according to data traffic passing through the port.
I. Processing mode of untagged packets sent by IP voice devices
Automatic voice VLAN assignment mode. An S5100-EI Ethernet switch
automatically adds a port connecting an IP voice device to the voice VLAN by
learning the source MAC address in the untagged packet sent by the IP voice
device when it is powered on. The voice VLAN uses the aging mechanism to
maintain the number of ports in the voice VLAN. When the aging timer expires, the
ports whose OUI addresses are not updated (that is, no voice traffic passes) will
OUI address
0003-6b00-0000
000f-e200-0000
00d0-1e00-0000
00e0-7500-0000
00e0-bb00-0000
1-4
Chapter 1 Voice VLAN Configuration
Vendor
Cisco phones
H3C Aolynk phones
Pingtel phones
Polycom phones
3Com phones