3com 5500-ei pwr Guía De Referencia

 

1-6 

aging timer starts. If no recognizable voice traffic has been received before the timer expires, the port is 

removed from the voice VLAN.  

The voice VLAN aging timer does not take effect on ports working in manual voice VLAN assignment 

mode, because these ports are assigned to the voice VLAN statically.  

When setting the voice VLAN aging timer, consider the usage frequency of IP phones. Note that:  

z 

A large voice VLAN aging timer setting can prevent a port from being assigned to or removed from 

the voice VLAN frequently, keeping voice communication stable. However, this may cause a port to 

stay in the voice VLAN even if it has not transmitted voice traffic for a long time, occupying system 

resources and bringing about security problems. Therefore, you are recommended to set a large 

voice VLAN aging timer in a network with credible network devices and many voice applications.  

z 

A small voice VLAN aging timer enables the switch to remove a port that has not transmitted voice 

traffic from the voice VLAN timely, thus improving network security. However, this may cause the 

port to be assigned to or removed from the voice VLAN frequently. Therefore, you are 

recommended to set a small voice VLAN aging timer in a network with only a few voice 

applications. 

Related commands: display voice vlan status. 

# Set the aging time of the voice VLAN to 100 minutes. 

<Sysname> system-view 

System View: return to User View with Ctrl+Z. 

[Sysname] voice vlan aging 100 

undo voice vlan enable 

Ethernet port view 

None 

Use the voice vlan enable command to enable the voice VLAN function on the port. 

Use the undo voice vlan enable command to disable the voice VLAN function on the port. 

By default, the voice VLAN function is disabled on all ports.  

To have the voice VLAN function take effect on a port, you must enable it both globally and on the port. 

Note that the operations are order independent. 

Related commands: display voice vlan error-info, display voice vlan status. 

# Enable the voice VLAN function on Ethernet1/0/2.