Configuring Voice Vlans - Planet SGSD-1022 User Manual

5.21.8 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 as a tagged member
to the Voice VLAN. Alternatively, switch ports can be manually configured.
Command
voice vlan
voice vlan aging
voice vlan mac-address
switchport voice vlan
switchport voice vlan rule
switchport voice vlan security
switchport voice vlan priority
show voice vlan
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 can provide higher voice quality by preventing excessive packet
delays, packet loss, and jitter. This is best achieved by assigning all VoIP traffic to a single Voice 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 devices. When VoIP traffic is detected on a configured port, the switch
automatically assigns the port as a tagged member of the Voice VLAN.
Only one Voice VLAN is supported and it must already be created on the switch before it can be specified as the
Voice VLAN.
The Voice VLAN ID cannot be modified when global auto-detection status is enabled (see the switchport voice vlan
Function
Defines the Voice VLAN ID
Configures the aging time for Voice VLAN ports
Configures VoIP device MAC adresses
Sets the Voice VLAN port mode
Sets the automatic VoIP traffic detection method for ports
Enables Voice VLAN security on ports
Sets the VoIP traffic priority for ports
Displays Voice VLAN settings
Table 5-74 Voice VLAN Commands
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User's Manual of SGSD-1022 / SGSD-1022P
SGSW-2840 / SGSW-2840P
Mode
GC
GC
GC
IC
IC
IC
IC
PE