Accton Technology ES3528M-SFP manual Voice vlan voice-vlan-id no voice vlan

	Voice VLAN Commands		4
	Table 4-73 Voice VLAN Commands
Command	Function	Mode	Page
switchport voice vlan security	Enables Voice VLAN security on ports	IC	4-284
switchport voice vlan priority	Sets the VoIP traffic priority for ports	IC	4-285
show voice vlan	Displays Voice VLAN settings	PE	4-286

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 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 the global auto-detection status is enabled.

Example

The following example enables VoIP traffic detection and specifies the Voice VLAN ID as 1234.

Console(config)#voice vlan 1234

Console(config)#

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