3-4
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... Use the command... Remarks
Enter system view
system-view
—
Set the voice VLAN
aging time
voice vlan aging minutes
Optional
1440 minutes by default.
The voice VLAN aging time configuration is
only applicable on ports in automatic voice
VLAN assignment mode.
Enable the voice
VLAN security mode
voice vlan security
enable
Optional
Enabled by default.
Add a recognizable
OUI address
voice vlan mac-address
oui mask oui-mask
[ description text ]
Optional
By default, each voice VLAN has default OUI
addresses configured. Refer to
Table 3-1 for
the default OUI addresses of different
vendors.
Enter Ethernet
interface view
interface interface-type
interface-number
—
Configure the port to
operate in automatic
voice VLAN
assignment mode
voice vlan mode auto
Optional
Automatic voice VLAN assignment mode is
enabled by default.
The voice VLAN assignment modes on
different ports are independent of one another.
Enable voice VLAN
on the port
voice vlan vlan-id enable
Required
Not enabled by default
z An S5120-EI switch supports up to eight voice VLANs globally.
z A protocol-based VLAN on a hybrid port can process only untagged inbound packets, whereas the
voice VLAN in automatic mode on a hybrid port can process only tagged voice traffic. Therefore, do
not configure a VLAN as both a protocol-based VLAN and a voice VLAN. For more information,
refer to
Protocol-Based VLAN Configuration.
z Do not configure the default VLAN of a port in automatic voice VLAN assignment mode as the
voice VLAN.
Setting a Port to Operate in Manual Voice VLAN Assignment Mode
Follow these steps to set a port to operate in manual voice VLAN assignment mode:
To do... Use the command... Remarks
Enter system view
system-view
—
Enable the voice VLAN security
mode
voice vlan security enable
Optional
Enabled by default.
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