Operation Manual – Voice VLAN
H3C S3600 Series Ethernet Switches-Release 1510 Chapter 1
Voice VLAN Configuration
1-2
I. Processing mode of untagged packets sent by IP voice devices
z Automatic mode: an S3600 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. When the
aging time of a port expires, voice ports on which the OUI addresses are not
updated (no voice traffic passes) will be automatically removed from the voice
VLAN; voice ports can not be added into or removed from the voice VLAN through
manual configurations.
z Manual mode: add a voice port to the voice VLAN or remove a voice port from the
voice VLAN through manual configuration.
II. Processing mode of tagged packets sent by IP voice devices
For the tagged packets sent by IP voice devices, they are processed in the same way in
either of the above two modes: forwarded within corresponding VLAN according to
their VLAN ID in the tags.
Note:
z An untagged packet refers to the packet without the VLAN tag.
z A tagged packet refers to the packet with the VLAN tag.
1.1.2 Supporting Information of Voice VLAN on Various Ports
Voice VLAN packets can be forwarded by both trunk and hybrid ports in voice VLAN.
You can enable a trunk or hybrid port belonging to other VLANs to forward voice and
service packets simultaneously by enabling the voice VLAN.
As multiple types of IP voice devices exist, you need to match port mode with types of
voice traffic sent by IP voice devices, as listed in
Table 1-2.
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