Lldp Configuration - Yealink T54S Administrator's Manual

Administrator's Guide for SIP-T2 Series/T4 Series/T5 Series IP Phones
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.
static.network.lldp.enable
Parameter
It enables or disables the LLDP (Linker Layer Discovery Protocol) feature on the IP
Description
phone.
0-Disabled
Permitted
Values
1-Enabled, the IP phone will attempt to determine its VLAN ID through LLDP.
1
Default
Network->Advanced->LLDP->Active
Web UI
T54S/T52S/T48S/T48G/T46S/T46G/T29G:
Phone UI
VLAN Feature on Yealink IP
[1]
Phones.
<y0000000000xx>.cfg
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