Installation manual

4-267
SIGNAMAX LLC • www.signamax.eu
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.
Table 4-74 Voice VLAN Commands
Command Function Mode Page
voice vlan Defines the Voice VLAN ID GC 4-267
voice vlan aging Configures the aging time for Voice VLAN ports GC 4-268
voice vlan mac-address Configures VoIP device MAC addresses GC 4-269
switchport voice vlan Sets the Voice VLAN port mode IC 4-270
switchport voice vlan rule Sets the automatic VoIP traffic detection method for ports IC 4-270
switchport voice vlan security Enables Voice VLAN security on ports IC 4-271
switchport voice vlan priority Sets the VoIP traffic priority for ports IC 4-272
show voice vlan Displays Voice VLAN settings PE 4-272