Dhcp Option 59 And Custom Option; Vlan; Lldp Configuration Cdp Configuration Manual Vlan Configuration Dhcp Vlan - Yealink SIP-T2 Series Administrator's Manual

DHCP
Parameters
Option
Boot File URL 59

DHCP Option 59 and Custom Option

During the startup, the phone will automatically detect the custom option or option 59 for obtaining the provisioning
server address. The priority of obtaining the provisioning server address is as follows: custom option>option 59.
Related Topic
DHCP Provision Configuration

VLAN

The purpose of VLAN configurations on the IP phone is to insert a tag with VLAN information to the packets generated
by the IP phone. When VLAN is properly configured for the ports (Internet port and PC port) on the IP phone, the IP
phone will tag all packets from these ports with the VLAN ID. The switch receives and forwards the 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 to 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.
For more information on VLAN, refer to
Topics
LLDP Configuration
CDP Configuration
Manual VLAN Configuration
DHCP VLAN
VLAN Setting Configuration
LLDP Configuration
LLDP (Linker Layer Discovery Protocol) is a vendor-neutral Link Layer protocol, which allows IP phones to receive
and/or transmit device-related information from/to directly connected devices on the network that are also using the
protocol, and store the information about other devices.
When LLDP feature is enabled on IP phones, the IP phones periodically advertise their own information to the directly
connected LLDP-enabled switch. The IP phones can also receive LLDP packets from the connected switch. When the
application type is "voice", the IP phones decide whether to update the VLAN configurations obtained from the LLDP
packets. When the VLAN configurations on the IP phones are different from the ones sent by the switch, the IP phones
perform an update and reboot. This allows the IP phones to plug into any switch, obtain their VLAN IDs, and then start
communications with the call control.
The following table lists the parameters you can use to configure LLDP.
Parameter static.network.lldp.enable
Description It enables or disables the LLDP (Linker Layer Discovery Protocol) feature on the IP phone.
Permitted 0-Disabled
Specify a URL for the boot file to be downloaded by the client.
VLAN Feature on Yealink IP
[1]
Description
Phones.
<y0000000000xx>.cfg
Phone Network
33