LevelOne FGL-2870 - Manual (Page 694)

Command Line Interface
4-328
4
Configuring Voice VLANs
The switch allows you to specify a Voice VLAN for the network and set a CoS priority
for the VoIP traffic. VoIP traffic can be detected on switch ports by using the source
MAC address of packets, or by using LLDP (IEEE 802.1AB) to discover connected
VoIP devices. When VoIP traffic is detected on a configured port, the switch
automatically assigns the port to the Voice VLAN. Alternatively, switch ports can be
manually configured.
voice vlan
This command enables VoIP traffic detection and defines the Voice VLAN ID. Use
the no form to disable the Voice VLAN.
Syntax
voice vlan voice-vlan-id
no voice vlan
voice-vlan-id - Specifies the voice VLAN ID. (Range: 1-4094)
Default Setting
Disabled
Command Mode
Global Configuration
Command Usage
• When IP telephony is deployed in an enterprise network, it is recommended
to isolate the Voice over IP (VoIP) network traffic from other data traffic. Traffic
isolation helps prevent excessive packet delays, packet loss, and jitter, which
results in higher voice quality. This is best achieved by assigning all VoIP
traffic to a single VLAN.
• VoIP traffic can be detected on switch ports by using the source MAC address
of packets, or by using LLDP (IEEE 802.1AB) to discover connected VoIP
Table 4-82 Voice VLAN Commands
Command Function Mode Page
voice vlan Defines the Voice VLAN ID GC 4-328
voice vlan aging Configures the aging time for Voice VLAN ports GC 4-329
voice vlan mac-address Configures VoIP device MAC addresses GC 4-330
switchport voice vlan Sets the Voice VLAN port mode IC 4-331
switchport voice vlan rule Sets the automatic VoIP traffic detection method for ports IC 4-331
switchport voice vlan security Enables Voice VLAN security on ports IC 4-332
switchport voice vlan priority Sets the VoIP traffic priority for ports IC 4-333
show voice vlan Displays Voice VLAN settings PE 4-333