3com 5500-ei pwr Reference Guide

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preferentially. If you do not want to use the default precedence marking settings of the switch for voice 
VLAN traffic, you can use the voice vlan qos command to change the settings. 
 
 
If you want to delete a VLAN with voice VLAN function enabled, you must disable the voice VLAN 
function first. 
The voice VLAN function can be enabled for only one VLAN at one time.  
 
Related commands: display voice vlan status
Examples 
# Create VLAN 2, and enable the voice VLAN function on it. 
<Sysname> system-view 
System View: return to User View with Ctrl+Z. 
[Sysname] vlan 2 
[Sysname-vlan2] quit 
[Sysname] voice vlan 2 enable 
# After the voice VLAN function of VLAN 2 is enabled, if you enable the voice VLAN function for other 
VLANs, the system will prompt that your configuration fails. 
[Sysname] voice vlan 4 enable 
Can't change voice vlan configuration when other voice vlan is running 
voice vlan aging 
Syntax 
voice vlan aging minutes 
undo voice vlan aging 
View 
System view 
Parameters 
minutes: Sets the voice VLAN aging timer in minutes, in the range of 5 to 43200. 
Description 
Use the voice vlan aging command to set the voice VLAN aging timer. 
Use the undo voice vlan aging command to restore the default. 
By default, the voice VLAN aging timer is 1440 minutes. 
If a port is configured to work in automatic voice VLAN assignment mode, the switch automatically 
assigns the port to the voice VLAN when receiving a packet with the source MAC address matching an 
entry in the OUI list of the switch. As soon as the port is assigned to the voice VLAN, the voice VLAN