Configuring Network
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VLAN (Virtual Local Area Network) is used to divide a physical network logically into
several broadcast domains. VLAN membership can be configured through software
instead of physically relocating devices or connections. Grouping devices with a
common set of requirements regardless of their physical location can greatly simplify
network design. VLANs can address issues such as scalability, security, and network
management.
The purpose of VLAN configurations on the system is to insert a tag with VLAN
information to the packets generated by the system. When VLAN is configured on the
system properly, the system will tag all packets with the VLAN ID. The switch receives
and forwards the tagged packets to the corresponding VLAN according to the tag‘s
VLAN ID, as described in IEEE Std 802.3.
In addition to manual configuration, the system also supports automatic VLAN discovery
via LLDP or DHCP. The assignment takes effect in the following order: assignment via
LLDP, manual configuration, then assignment via DHCP.
VLAN Discovery via DHCP
The system supports VLAN discovery via DHCP. When the VLAN Discovery method is set
to DHCP, the system will examine the 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 about VLAN, refer to
VLAN Feature on Yealink IP Phones
, available
online: http://www.yealink.com/DocumentDownload.aspx?CateId=142&flag=142.
Parameters of VLAN feature on the system are described below.