Setting A Port To Operate In Manual Voice Vlan Assignment Mode - 3Com S7906E Configuration Manual

To do...
Set the priority
trust setting
on the
interface
Configure the QoS priority trust mode and priority settings for voice VLAN traffic on an interface
before enabling voice VLAN on the interface. If the configuration order is reversed, your priority
trust setting will fail.
The voice vlan qos cos-value dscp-value command and the voice vlan qos trust command can
overwrite the other, whichever is configured the last.

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...
Enter system view
Enable the voice VLAN security
mode
Add a recognizable OUI
address
Enter interface view
Configure the port to operate in
manual voice VLAN
assignment mode
Use the command...
Set the
interface not
to trust priority
voice vlan qos cos-value
carried in
dscp-value
incoming
voice VLAN
traffic
Set the
interface to
trust the
priority carried voice vlan qos trust
in incoming
voice VLAN
traffic
Use the command...
system-view
voice vlan security enable
voice vlan mac-address oui
mask oui-mask [ description
text ]
interface interface-type
interface-number
undo voice vlan mode auto
Optional
Use either command.
By default, an interface does not
trust the priority carried in
incoming voice VLAN traffic, and
the CoS precedence value and
the DSCP value marked for voice
VLAN traffic are 6 and 46
respectively.
—
Optional
Enabled by default.
Optional
By default, each voice VLAN
has default OUI addresses
configured. Refer to
for the default OUI addresses
of different vendors.
—
Required
Disabled by default
4-6
Remarks
Remarks
Table 4-1