Switchport Voice Vlan; No Switchport Voice Vlan - Centrecom FS980M/9 Command Reference Manual

VLAN C
OMMANDS

SWITCHPORT VOICE VLAN

switchport voice vlan
Overview Use this command to configure the Voice VLAN tagging advertised when the
transmission of LLDP-MED Network Policy TLVs for voice endpoint devices is
enabled. When LLDP-MED capable IP phones receive this network policy
information, they transmit voice data with the specified tagging. This command
also sets the ports to be spanning tree edge ports, that is, it enables spanning tree
portfast on the ports.
Use the no variant of this command to remove LLDP-MED network policy
configuration for voice devices connected to these ports. This does not change the
spanning tree edge port status.
switchport voice vlan [<vid>|dot1p|dynamic|untagged]
Syntax

no switchport voice vlan

Default By default, no Voice VLAN is configured, and therefore no network policy is
advertised for voice devices.
Mode Interface Configuration
Usage LLDP-MED advertisements including Network Policy TLVs are transmitted via a
port if:
•
•
•
•
•
To set the priority value to be advertised for tagged frames, use the
voice vlan priority
If the Voice VLAN details are to be assigned by RADIUS, then the RADIUS server
must be configured to send the attribute "Egress-VLANID (56)" or
613-50137-01 Rev A
Parameter Description
dot1p
The IP phone should send User Priority tagged packets, that is, packets in
which the tag contains a User Priority value, and a VID of 0. (The User
Priority tag is also known as the 802.1p priority tag, or the Class of Service
(CoS) tag.)
dynamic
The VLAN ID with which the IP phone should send tagged packets will be
assigned by RADIUS authentication.
untagged
The IP phone should send untagged packets.
LLDP is enabled (lldp run
Voice VLAN is configured for the port using this command
vlan)
The port is configured to transmit LLDP advertisements—enabled by default
(lldp transmit receive
The port is configured to transmit Network Policy TLVs—enabled by default
(lldp med-tlv-select
There is an LLDP-MED device connected to the port.
command.
Command Reference for FS980M Series
AlliedWare Plus™ Operating System - Version 5.4.6-2.x
command)
command)
command)
(switchport voice
switchport
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