Chapter 19
| VLAN Commands
Configuring Voice VLANs
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voice vlan aging This command sets the Voice VLAN ID time out. Use the no form to restore the
default.
Syntax
voice vlan aging minutes
no voice vlan
minutes - Specifies the port Voice VLAN membership time out.
(Range: 5-43200 minutes)
Default Setting
1440 minutes
Command Mode
Global Configuration
Command Usage
The Voice VLAN aging time is the time after which a port is removed from the Voice
VLAN when VoIP traffic is no longer received on the port.
The VoIP aging time starts to count down when the OUI’s MAC address expires from
the MAC address table. Therefore, the MAC address aging time should be added to
the overall aging time. For example, if you configure the MAC address table aging
time to 30 seconds, and voice VLAN aging time to 5 minutes, then after 5.5
minutes, a port will be removed from the voice VLAN when VoIP traffic is no longer
received on the port. Alternatively, if you clear the MAC address table manually,
then the switch will also start counting down the voice VLAN aging time.
Example
The following example configures the Voice VLAN aging time as 3000 minutes.
Console(config)#voice vlan aging 3000
Console(config)#
voice vlan
mac-address
This command specifies MAC address ranges to add to the OUI Telephony list. Use
the no form to remove an entry from the list.
Syntax
voice vlan mac-address mac-address mask mask-address
[description description]
no voice vlan mac-address mac-address mask mask-address
mac-address - Defines a MAC address OUI that identifies VoIP devices in the
network. (For example, 01-23-45-00-00-00)
mask-address - Identifies a range of MAC addresses. (Range: 80-00-00-00-
00-00 to FF-FF-FF-FF-FF-FF)