Administrator’s Guide for SIP-T2_Series_T4_Series IP Phones
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tagged packets to the corresponding VLAN according to the VLAN ID in the tag as
described in IEEE Std 802.3.
VLAN on IP phones allows simultaneous access for a regular PC. This feature allows a PC
to be daisy chained to an IP phone and the connection for both PC and IP phone to be
trunked through the same physical Ethernet cable.
In addition to manual configuration, the IP phone also supports automatic discovery of
VLAN via LLDP, CDP or DHCP. The assignment takes effect in this order: assignment via
LLDP/CDP, manual configuration, then assignment via DHCP.
VLAN Discovery via DHCP
IP phones support VLAN discovery via DHCP. When the VLAN Discovery method is set to
DHCP, the IP phone will examine DHCP option for a valid VLAN ID. The predefined
option 132 is used to supply the VLAN ID by default. You can customize the DHCP option
used to request the VLAN ID.
For more information on VLAN, refer to
VLAN Feature on Yealink IP Phones
, available
online: http://www.yealink.com/DocumentDownload.aspx?CateId=142&flag=142.
Procedure
VLAN can be configured using the configuration files or locally.
Configure VLAN for the Internet port
and PC port manually.
Parameters:
network.vlan.internet_port_enable
network.vlan.internet_port_vid
network.vlan.internet_port_priority
network.vlan.pc_port_enable
network.vlan.pc_port_vid
network.vlan.pc_port_priority
Configure DHCP VLAN discovery
feature.
Parameters:
network.vlan.dhcp_enable
network.vlan.dhcp_option
Configure the VLAN assignment
method.
Parameter:
network.vlan.vlan_change.enable
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