voice-vlan legacy enable

Function

The voice-vlan legacy enable command enables CDP-compatible Voice VLAN function so that the switch encapsulates voice VLAN information in CDP packets and sends them to connected IP phones.

The undo voice-vlan legacy enable command disables CDP-compatible Voice VLAN function.

By default, CDP-compatible function is disabled.

Format

voice-vlan legacy enable

undo voice-vlan legacy enable

Parameters

None

Views

Ethernet interface view, GE interface view, XGE interface view, 40GE interface view, 100GE interface view, MultiGE interface view, Eth-Trunk interface view, port group view, 25GE interface view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

The switch can encapsulate voice VLAN information into LLDPDUs and send them to connected IP phones. However, IP phones of some vendors send Cisco Discovery Protocol (CDP) packets. You can run the voice-vlan legacy enable command to enable CDP-compatible function so that the switch encapsulates voice VLAN information in CDP packets and sends them to connected IP phones.

Prerequisites

The voice VLAN function has been enabled using the voice-vlan enable command.

Example

# Enable CDP-compatible Voice VLAN function on GE0/0/1.

<HUAWEI> system-view
[HUAWEI] interface GigabitEthernet 0/0/1
[HUAWEI-GigabitEthernet0/0/1] voice-vlan 10 enable
[HUAWEI-GigabitEthernet0/0/1] voice-vlan legacy enable