3Com Switch 4200G Configuration Guide

58 CHAPTER 12: VOICE VLAN CONFIGURATION
CAUTION:
■ You can enable voice VLAN feature for only one VLAN at a moment.
■ If the VLAN for whom the voice VLAN function is enabled is a dynamic VLAN, the
VLAN becomes a static VLAN after you enable the voice VLAN function.
■ A port operating in the automatic mode cannot be added to/removed from a voice
VLAN.
■ When a voice VLAN operates in the security mode, the devices in it only permit
packets whose source addresses are the voice OUI addresses that can be
identified. Packets whose source addresses cannot be identified, including certain
authentication packets (such as 802.1x authentication packets), will be dropped.
So, do not transmit both voice data and service data in a voice VLAN. If you have
to do so, make sure the voice VLAN do not operate in the security mode.
Add a
port to
the
VLAN
Access
port
Enter VLAN
view
vlan vlan-id Required
Add the port
to the VLAN
port port-type port-num
Trunk or
hybrid
port
Enter port
view
interface interface-type
interface-num
Add the port
to the voice
VLAN
port trunk permit vlan vlan-id
port hybrid vlan vlan-id
{ tagged | untagged }
Configure
the voice
VLAN to be
the default
VLAN of the
port
port trunk pvid vlan vlan-id
port hybrid pvid vlan vlan-id
Optional
Refer to Table 37 to
determine whether or not
this operation is needed.
Quit to system view quit -
Set an OUI address to be one that
can be identified by the voice
VLAN
voice vlan mac-address oui
mask oui-mask [ description
string ]
Optional
If you do not set the
address, the default OUI
address is used.
Enable the voice VLAN security
mode
voice vlan security enable Optional
By default, the voice VLAN
security mode is enabled.
Set aging time for the voice VLAN voice vlan aging minutes Optional
The default aging time is
1,440 minutes.
Enable the voice VLAN function
globally
voice vlan vlan-id enable Required
Table 39 Configure a voice VLAN to operate in manual mode (Continued)
Operation Command Description