Configuring A Voice Vlan; Configuration Prerequisites; Setting A Port To Operate In Automatic Voice Vlan Assignment Mode - 3Com 4500G Family Configuration Manual

Table 3-4 How a voice VLAN-enable port processes packets in security/normal mode
Voice VLAN
working mode
Security mode
Normal mode

Configuring a Voice VLAN

Configuration Prerequisites

1) Create a VLAN
Before configuring a VLAN as a voice VLAN, create the VLAN first.
2) Configure the voice VLAN assignment mode. For details, see
Automatic Voice VLAN Assignment Mode
Assignment
A port can belong to only one voice VLAN at a time.
Voice VLAN cannot be enabled on a port with Link Aggregation Control Protocol (LACP) enabled.

Setting a Port to Operate in Automatic Voice VLAN Assignment Mode

Follow these steps to set a port to operate in automatic voice VLAN assignment mode:
To do...
Enter system view
Set the voice VLAN
aging time
Enable the voice
VLAN security mode
Packet type
Untagged packets
Packets carrying the
voice VLAN tag
Packets carrying
other tags
Untagged packets
Packets carrying the
voice VLAN tag
Packets carrying
other tags
Mode.
Use the command...
system-view
voice vlan aging minutes
voice vlan security
enable
Packet processing mode
If the source MAC address of a packet matches an OUI
address configured for the device, it is forwarded in the
voice VLAN; otherwise, it is dropped.
Forwarded or dropped depending on whether the port
allows packets of these VLANs to pass through
The port does not check the source MAC addresses of
inbound packets. All types of packets can be transmitted
in the voice VLAN.
Forwarded or dropped depending on whether the port
allows packets of these VLANs to pass through
and Setting a Port to Operate in Manual Voice VLAN
—
Optional
1440 minutes by default.
The voice VLAN aging time configuration is
only applicable on ports in automatic voice
VLAN assignment mode.
Optional
Enabled by default.
3-5
Setting a Port to Operate in
Remarks